TWI766895B - A road traffic optimization method, device and electronic device - Google Patents

A road traffic optimization method, device and electronic device Download PDF

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Publication number
TWI766895B
TWI766895B TW106137520A TW106137520A TWI766895B TW I766895 B TWI766895 B TW I766895B TW 106137520 A TW106137520 A TW 106137520A TW 106137520 A TW106137520 A TW 106137520A TW I766895 B TWI766895 B TW I766895B
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Taiwan
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road
traffic
optimized
traffic flow
speed
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TW106137520A
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Chinese (zh)
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TW201832190A (en
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王夢佳
閔萬里
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香港商阿里巴巴集團服務有限公司
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    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/07Controlling traffic signals
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/0104Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0125Traffic data processing
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/0104Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0137Measuring and analyzing of parameters relative to traffic conditions for specific applications
    • G08G1/0145Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/07Controlling traffic signals
    • G08G1/08Controlling traffic signals according to detected number or speed of vehicles
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/07Controlling traffic signals
    • G08G1/081Plural intersections under common control

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Traffic Control Systems (AREA)

Abstract

本發明公開了一種道路交通優化方法,包括:根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;根據所述路況參數確定所述待優化路段在不同時段的車流狀況;在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。所述道路交通優化方法,通過對待優化路段內道路交叉口的交通訊號進行相應的優化控制,降低了車輛在通過待優化路段過程中的停車次數和延誤時間,從而降低了車輛通過待優化路段的通行時間,提升了待優化路段整體的通行效率,對待優化路段的道路交通的優化控制更加精細化和智慧化。The invention discloses a road traffic optimization method, comprising: analyzing and obtaining road condition parameters of the road section to be optimized according to the obtained road traffic information of the road section to be optimized; determining the traffic flow conditions of the road section to be optimized in different time periods according to the road condition parameters ; in the time period corresponding to the traffic flow condition, perform optimization control matching the traffic flow condition on the traffic signal of the road intersection in the road section to be optimized. The road traffic optimization method reduces the number of parking times and delay time of vehicles in the process of passing the road section to be optimized by performing corresponding optimization control on the traffic signals of the road intersections in the road section to be optimized, thereby reducing the time required for vehicles to pass the road section to be optimized. The travel time improves the overall traffic efficiency of the road section to be optimized, and the road traffic optimization control of the road section to be optimized is more refined and intelligent.

Description

一種道路交通優化方法、裝置以及電子設備A road traffic optimization method, device and electronic device

本發明涉及智慧交通領域,具體涉及一種道路交通優化方法。本發明同時涉及一種道路交通優化裝置,以及一種電子設備。The invention relates to the field of intelligent transportation, in particular to a road traffic optimization method. The invention also relates to a road traffic optimization device and an electronic device.

隨著經濟的高速發展和生活水準的不斷提高,機動車的保有量迅速增加,其中尤以私家車為主不斷的湧入有限的城市交通路網,給城市交通路網帶來了巨大的壓力,尤其是給城市交通路網中的道路交叉口帶來了許多問題。道路交叉口作為兩條或兩條以上的道路相交處,是車輛與行人彙集、轉向和疏散的必經之地,是城市交通路網的咽喉,如果道路交叉口的交通訊號控制不合理,很可能會導致過往車輛會頻繁遇到紅燈,導致時間延誤和燃油浪費,同時會加重空氣和雜訊污染,甚至可能會使駕駛員心情煩躁,從而引發交通事故,因此對道路交叉口的道路交通控制顯得尤為重要。   目前針對城市交通路網當中道路交叉***通訊號的控制,根據道路交叉口的實際情形,通過軟體建模或者人工統計的方式計算道路交叉口各個方向在以往某一時間段的車流資訊,根據獲得的車流資訊協調優化道路交叉口的交通訊號,比如在調查獲得某一路段在各時段的精細化速度時,通常會在該路段上多次跟車收集車流的行程速度、行程時間和停車次數,但由於跟車調查的方式耗時耗力,因此往往全天採用同一個速度來進行交通訊號的協調優化;同時,受限於樣本數量,使採集獲得的樣本資料有一定的隨機性,可信度較低,因此對道路交叉***通訊號的協調優化具有一定的局限性。With the rapid development of the economy and the continuous improvement of living standards, the number of motor vehicles has increased rapidly. Among them, private cars are constantly pouring into the limited urban traffic road network, which has brought huge pressure to the urban traffic road network. , especially brought many problems to the road intersections in the urban traffic network. As the intersection of two or more roads, a road intersection is a necessary place for vehicles and pedestrians to gather, turn and evacuate, and it is the throat of the urban traffic network. It may cause passing vehicles to frequently encounter red lights, causing time delays and wasting fuel, while increasing air and noise pollution, and may even make drivers irritable, causing traffic accidents, so road traffic at road intersections. Control is especially important. At present, for the control of traffic signals at road intersections in the urban traffic road network, according to the actual situation of road intersections, the traffic flow information in each direction of road intersections in a certain time period in the past is calculated by software modeling or manual statistics. For example, when the refined speed of a certain road section in each time period is obtained through investigation, the travel speed, travel time and number of stops of the traffic flow are usually collected by following vehicles on the road section for many times. However, due to the time-consuming and labor-intensive method of following the vehicle survey, the same speed is often used throughout the day to coordinate and optimize the traffic signal; at the same time, limited by the number of samples, the collected sample data is random and reliable. Therefore, the coordination and optimization of traffic signals at road intersections has certain limitations.

本發明提供一種道路交通優化方法,以解決現有技術存在局限性的缺陷。本發明另外提供一種道路交通優化裝置,以及一種電子設備。   本發明提供一種道路交通優化方法,包括:   根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;   根據所述路況參數確定所述待優化路段在不同時段的車流狀況;   在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。   可選的,所述路況參數包括下述至少一項:所述待優化路段內的平均行駛速度、速度標準差、單位速度水準上的速度離散係數、速度離散係數與平均行駛速度二者的速度相關係數。   可選的,所述車流狀況包括下述至少一項:車流高峰、車流平峰、車流低峰。   可選的,若所述車流狀況為車流高峰和車流平峰,相應的,所述車流狀況採用如下方式確定:   判斷所述待優化路段在當前時段的平均行駛速度是否小於第一速度臨限值,若是,所述待優化路段在當前時段的車流狀況為車流高峰;若否,所述待優化路段在當前時段的車流狀況為車流平峰。   可選的,所述第一速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。   可選的,若所述車流狀況為車流高峰和車流平峰,相應的,所述車流狀況採用如下方式確定:   判斷所述待優化路段在當前時段的平均行駛速度是否小於第二速度臨限值,若是,判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第一速度離散臨限值,若大於或者等於所述第一速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流高峰;若小於所述第一速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;若否,所述待優化路段在當前時段的車流狀況為車流平峰;   其中,所述第二速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。   可選的,若所述車流狀況為車流高峰、車流平峰和車流低峰,相應的,所述車流狀況採用如下方式確定:   判斷所述待優化路段在當前時段的平均行駛速度是否小於第三速度臨限值,若是,判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第二速度離散臨限值,若大於或者等於所述第二速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流高峰;若小於所述第二速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;   若否,判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第三速度離散臨限值,若大於或者等於所述第三速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流低峰;若小於所述第三速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;   其中,所述第三速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。   可選的,所述第二速度離散臨限值和所述第三速度離散臨限值在數值上相等。   可選的,所述在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,採用如下方式實現:   在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號的相位進行調整;同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,根據二者之間的距離與二者之間的車流行駛速度的比值確定。   可選的,所述在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,採用如下方式實現:   針對所述待優化路段內至少一個道路交叉口,執行如下操作:在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用預先設置的交通訊號配時模型計算所述道路交叉口的平均延時時間,獲得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號。   可選的,所述在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,採用如下方式實現:   在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號的相位進行調整;同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,根據二者之間的距離與二者之間的車流行駛速度的比值確定;   以及,針對所述待優化路段內至少一個道路交叉口,執行如下操作:在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用預先設置的交通訊號配時模型計算所述道路交叉口的平均延時時間,獲得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號。   可選的,所述交通訊號配時模型所採用目標函數的約束條件包括下述至少一項:   所述道路交叉口各相位綠燈時間之和與週期損失求和等於週期時長,所述道路交叉口在各相位的有效綠信比大於或者等於最小綠燈時間與週期時長的比值;   其中,所述最小綠燈時間根據所述道路交叉口各個相位當前實際綠燈時間確定。   可選的,所述道路交通優化方法,包括:   針對所述待優化路段內道路交叉口劃分成的至少一個子路段,執行如下操作:   根據所述子路段在各車流方向的車輛行駛速度,判斷所述子路段在各車流方向的車輛行駛速度是否小於預設臨限值,若是,將所述子路段判定為擁堵子路段,並對所述擁堵子路段相鄰道路交叉口的交通訊號進行優化控制。   可選的,所述待優化路段內的平均行駛速度,根據所述待優化路段內道路交叉口劃分成的各子路段車輛行駛速度的平均值確定。   可選的,所述速度標準差,根據所述待優化路段內道路交叉口劃分成的各子路段車輛行駛速度相對於所述平均行駛速度計算獲得的標準差確定。   可選的,所述單位速度水準上的速度離散係數,根據所述速度標準差與所述平均行駛速度的比值確定。   可選的,所述道路交通優化方法,基於所述交通訊號配時模型實現,所述交通訊號配時模型的輸入為所述道路交通資訊,輸出為所述待優化路段內道路交叉口的交通訊號的相位及其對應的時間資訊,所述待優化路段內道路交叉口的交通訊號的週期時長和有效綠信比,和/或,所述待優化路段內的擁堵子路段及其對應的擁堵時段。   可選的,所述道路交通優化方法基於預先建立的道路交通優化平臺實現,所述道路交通優化平臺設置有用於獲取所述道路交通資訊的資料獲取介面,用於訪問以及輸出所述待優化路段的交通訊號優化策略的道路交通優化服務介面,和/或,用於上傳所述道路交通資訊的資料上傳介面;   其中,所述交通訊號優化策略中包含所述待優化路段內各道路交叉口的交通訊號的相位,以及各相位對應的時間資訊。   可選的,所述根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數步驟中的道路交通資訊,採用下述至少一種方式獲取:   通過所述資料獲取介面從協力廠商地圖服務商獲取所述待優化路段的導航資料,所述導航資料中包含所述道路交通資訊;   通過所述資料上傳介面接收所述待優化路段設置的交通資料獲取設備上傳的道路交通採集資料,所述道路交通採集資料中包含所述道路交通資訊。   可選的,所述道路交通優化平臺設置有交通訊號配置介面,所述道路交通優化平臺結合所述待優化路段設置的交通訊號燈對應的介面協議,通過所述交通訊號配置介面對所述待優化路段內各道路交叉***通訊號燈的交通訊號進行配置   本發明還提供一種道路交通優化裝置,包括:   道路交通資訊分析單元,用於根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;   車流狀況確定單元,用於根據所述路況參數確定所述待優化路段在不同時段的車流狀況;   優化控制單元,用於在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。   本發明還提供一種電子設備,包括:   記憶體,以及處理器;   所述記憶體用於儲存電腦可執行指令,所述處理器用於執行所述電腦可執行指令:   根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;   根據所述路況參數確定所述待優化路段在不同時段的車流狀況;   在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。   本發明提供的所述道路交通優化方法,包括:根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;根據所述路況參數確定所述待優化路段在不同時段的車流狀況;在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。   本發明提供的所述道路交通優化方法,在對待優化路段的道路交通進行優化控制時,根據預先獲取到的待優化路段的道路交通資訊分析獲得用於衡量和確定待優化路段車流狀況的路況參數,並根據分析獲得的路況參數確定待優化路段在不同時段的車流狀況,最後在待優化路段車流狀況對應的時段內,通過對待優化路段內道路交叉口的交通訊號進行車流狀況相匹配的優化控制,從而實現對待優化路段道路交通的優化控制。所述道路交通優化方法通過對待優化路段內道路交叉口的交通訊號進行相應的優化控制,降低了車輛在通過待優化路段過程中的停車次數和延誤時間,從而降低了車輛通過待優化路段的通行時間,提升了待優化路段整體的通行效率,對待優化路段的道路交通的優化控制更加精細化和智慧化。The present invention provides a road traffic optimization method to solve the limitation of the prior art. The present invention further provides a road traffic optimization device and an electronic device. The present invention provides a road traffic optimization method, comprising: analyzing and obtaining road condition parameters of the road segment to be optimized according to the obtained road traffic information of the road segment to be optimized; determining the traffic flow conditions of the road segment to be optimized in different time periods according to the road condition parameter; During the time period corresponding to the traffic flow condition, the traffic signal of the road intersection in the road section to be optimized is controlled to be optimized in accordance with the traffic flow condition. Optionally, the road condition parameters include at least one of the following: the average driving speed in the road section to be optimized, the speed standard deviation, the speed dispersion coefficient on a unit speed level, the speed of both the speed dispersion coefficient and the average driving speed. correlation coefficient. Optionally, the traffic flow conditions include at least one of the following: peak traffic flow, flat peak traffic flow, and low traffic flow peak. Optionally, if the traffic flow condition is a traffic flow peak and a traffic flow flat peak, correspondingly, the traffic flow condition is determined in the following manner: judging whether the average driving speed of the road section to be optimized in the current time period is less than the first speed threshold value, If yes, the traffic flow condition of the road section to be optimized in the current period is a peak traffic flow; if not, the traffic flow condition of the road section to be optimized in the current period is a traffic flow peak. Optionally, the first speed threshold value is determined according to the difference between the average driving speed in the road section to be optimized and the standard deviation of the speed in the road section to be optimized. Optionally, if the traffic flow condition is a traffic flow peak and a traffic flow flat peak, correspondingly, the traffic flow condition is determined in the following manner: judging whether the average driving speed of the road section to be optimized in the current time period is less than the second speed threshold value, If yes, judge whether the speed dispersion coefficient of the road section to be optimized in the current time period is greater than or equal to the first speed dispersion threshold value, if it is greater than or equal to the first speed dispersion threshold value, the speed dispersion coefficient of the road section to be optimized in the current time period is determined. The traffic flow condition is the peak traffic flow; if it is less than the first speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current period is the traffic flow peak; if not, the traffic flow condition of the road section to be optimized in the current period is the traffic flow peak ; Wherein, the second speed threshold value is determined according to the difference between the average driving speed in the road section to be optimized and the standard deviation of the speed in the road section to be optimized. Optionally, if the traffic flow condition is a traffic flow peak, a traffic flow flat peak, and a traffic flow low peak, correspondingly, the traffic flow condition is determined in the following manner: Determine whether the average driving speed of the road section to be optimized in the current period is less than a third speed Threshold value, if yes, determine whether the speed dispersion coefficient of the road segment to be optimized in the current period is greater than or equal to the second speed dispersion threshold value, if it is greater than or equal to the second speed dispersion threshold value, the road segment to be optimized The traffic flow condition in the current period is the peak traffic flow; if it is less than the second speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current period is the traffic flow peak; if not, it is judged that the road section to be optimized is in the current period Whether the speed dispersion coefficient is greater than or equal to the third speed dispersion threshold value, if it is greater than or equal to the third speed dispersion threshold value, the traffic flow condition of the road section to be optimized in the current period is a low traffic flow peak; if it is less than the third speed dispersion threshold value Three speed discrete threshold values, the traffic flow condition of the road section to be optimized in the current time period is a flat peak of traffic flow; wherein, the third speed threshold value is based on the average driving speed in the road section to be optimized and the road section to be optimized. The difference between the two speed standard deviations is determined. Optionally, the second speed dispersion threshold value and the third speed dispersion threshold value are equal in value. Optionally, in the time period corresponding to the traffic flow condition, the optimization control of the traffic signal at the road intersection in the road section to be optimized that matches the traffic flow condition is implemented in the following manner: During the time period corresponding to the situation, the phase of the traffic signal at the road intersection in the road section to be optimized is adjusted; the phase difference of the traffic signal at the two adjacent road intersections in the same traffic direction is determined according to the distance The ratio of the traffic speed between the two is determined. Optionally, in the time period corresponding to the traffic flow condition, the optimization control of the traffic signal at the road intersection in the road section to be optimized that matches the traffic flow condition is implemented in the following manner: Optimizing at least one road intersection in the road section, and performing the following operations: in the time period corresponding to the traffic flow condition, according to the cycle duration and the effective green signal ratio of the traffic signal at the road intersection, use the preset traffic signal timing allocation The model calculates the average delay time of the road intersection, obtains the corresponding cycle duration and effective green signal ratio when the average delay time is the minimum value, and configures the road intersection according to the obtained cycle duration and effective green signal ratio mouth traffic signal. Optionally, in the time period corresponding to the traffic flow condition, the optimization control of the traffic signal at the road intersection in the road section to be optimized that matches the traffic flow condition is implemented in the following manner: During the time period corresponding to the situation, the phase of the traffic signal at the road intersection in the road section to be optimized is adjusted; the phase difference of the traffic signal at the two adjacent road intersections in the same traffic direction is determined according to the distance The ratio of the traffic speed between the two is determined; And, for at least one road intersection in the road section to be optimized, perform the following operations: in the time period corresponding to the traffic flow condition, according to the traffic signal of the road intersection Calculate the average delay time of the road intersection by using the preset traffic signal timing model, and obtain the corresponding cycle length and effective green signal ratio when the average delay time is the minimum value. , and configure the traffic signal of the road intersection according to the obtained cycle duration and the effective green signal ratio. Optionally, the constraint condition of the objective function adopted by the traffic signal timing model includes at least one of the following: The effective green signal ratio of each phase is greater than or equal to the ratio of the minimum green light time to the cycle duration; wherein, the minimum green light time is determined according to the current actual green light time of each phase of the road intersection. Optionally, the road traffic optimization method includes: performing the following operations for at least one sub-section divided into a road intersection in the section to be optimized: According to the vehicle speed of the sub-section in each traffic flow direction, determine Whether the vehicle speed of the sub-road segment in each traffic flow direction is less than the preset threshold value, if so, determine the sub-road segment as a congested sub-road segment, and optimize the traffic signals at the adjacent road intersections of the congested sub-road segment control. Optionally, the average driving speed in the road section to be optimized is determined according to the average value of the vehicle driving speed of each sub-section divided into road intersections in the road section to be optimized. Optionally, the speed standard deviation is determined according to the standard deviation obtained by calculating the vehicle running speed of each sub-section divided into road intersections in the road section to be optimized relative to the average running speed. Optionally, the speed dispersion coefficient at the unit speed level is determined according to the ratio of the speed standard deviation to the average travel speed. Optionally, the road traffic optimization method is implemented based on the traffic signal timing model, the input of the traffic signal timing model is the road traffic information, and the output is the traffic at the road intersection in the road section to be optimized. The phase of the signal and its corresponding time information, the cycle duration and the effective green signal ratio of the traffic signal at the road intersection in the road section to be optimized, and/or, the congested sub-sections in the road section to be optimized and their corresponding Congested time. Optionally, the road traffic optimization method is implemented based on a pre-established road traffic optimization platform, and the road traffic optimization platform is provided with a data acquisition interface for acquiring the road traffic information for accessing and outputting the road section to be optimized. The road traffic optimization service interface of the traffic signal optimization strategy, and/or, the data upload interface for uploading the road traffic information; Wherein, the traffic signal optimization strategy includes the road intersections in the road section to be optimized. The phase of the traffic signal, and the time information corresponding to each phase. Optionally, the road traffic information in the step of obtaining the road condition parameters of the road section to be optimized according to the obtained road traffic information analysis of the road section to be optimized is obtained in at least one of the following ways: The map service provider obtains the navigation data of the road section to be optimized, and the navigation data includes the road traffic information; Receives the road traffic collection data uploaded by the traffic data acquisition device set on the road section to be optimized through the data upload interface, The road traffic collection data includes the road traffic information. Optionally, the road traffic optimization platform is provided with a traffic signal configuration interface. The present invention also provides a road traffic optimization device, including: a road traffic information analysis unit, configured to analyze and obtain the road traffic information of the road section to be optimized according to the obtained road traffic information of the road section to be optimized The road condition parameters of the optimized road section; The traffic flow condition determination unit is used for determining the traffic flow conditions of the road section to be optimized in different time periods according to the road condition parameters; The optimization control unit is used for the time period corresponding to the traffic flow condition The traffic signals of road intersections in the road section to be optimized are optimized and controlled in accordance with the traffic flow conditions. The present invention also provides an electronic device, comprising: a memory, and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions: Obtain the road condition parameters of the road section to be optimized by analyzing the traffic information; Determine the traffic flow conditions of the road section to be optimized in different time periods according to the road condition parameters; The traffic signal at the mouth is optimized and controlled to match the traffic flow conditions. The road traffic optimization method provided by the present invention includes: analyzing and obtaining road condition parameters of the road segment to be optimized according to the obtained road traffic information of the road segment to be optimized; determining the traffic flow of the road segment to be optimized in different time periods according to the road condition parameters condition; within the time period corresponding to the traffic flow condition, the traffic signal at the road intersection in the road section to be optimized is controlled by an optimization that matches the traffic flow condition. In the road traffic optimization method provided by the present invention, when the road traffic of the road section to be optimized is optimally controlled, the road condition parameters used to measure and determine the traffic flow conditions of the road section to be optimized are obtained by analyzing the road traffic information of the road section to be optimized obtained in advance. , and determine the traffic flow conditions of the road section to be optimized in different time periods according to the road condition parameters obtained by the analysis, and finally, in the time period corresponding to the traffic flow conditions of the road section to be optimized, the traffic signal of the road intersection in the road section to be optimized is used. , so as to realize the optimal control of road traffic in the section to be optimized. The road traffic optimization method reduces the number of parking times and delay time of vehicles in the process of passing the road section to be optimized by performing corresponding optimization control on the traffic signals of the road intersections in the road section to be optimized, thereby reducing the traffic of vehicles passing the road section to be optimized. The overall traffic efficiency of the road section to be optimized is improved, and the road traffic optimization control of the road section to be optimized is more refined and intelligent.

在下面的描述中闡述了很多具體細節以便於充分理解本發明。但是本發明能夠以很多不同於在此描述的其它方式來實施,本領域技術人員可以在不違背本發明內涵的情況下做類似推廣,因此本發明不受下面公開的具體實施的限制。   本發明提供一種道路交通優化方法,本發明另外提供一種道路交通優化裝置,以及一種電子設備。以下分別結合本發明提供的實施例的附圖逐一進行詳細說明,並且對方法的各個步驟進行說明。   本發明提供的道路交通優化方法實施例如下:   參照附圖1,其示出了本發明提供的一種道路交通優化方法實施例的處理流程圖,參照附圖2,其示出了本發明提供的一種綠波帶的示意圖。   步驟S101,根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數。   本發明實施例所述待優化路段,是指實際當中的一個地理區域或者一條道路,本發明提供的所述道路交通優化方法,正是通過對所述地理區域或者所述道路覆蓋的道路交叉***通訊號的協調優化,實現對所述地理區域或者所述道路交通狀況的改善優化。在此,本實施例以綠波帶為例,提供一種在所述綠波帶中實現所述道路交通優化方法的實現方式,如附圖2所示的綠波帶。所述綠波帶是指一個地理區域或者一條道路,並且在該地理區域或者該道路內實行統一的交通訊號控制,將該地理區域或者該道路覆蓋區域內所有道路交叉口的交通訊號燈連接起來,通過對這些交通訊號燈的協調控制,使車流在該地理區域或者該道路內行駛的過程中,在經過道路交叉口時交通訊號燈均為綠燈訊號(相位為綠燈),使車流暢通無阻地通過該地理區域或者該道路內的所有道路交叉口。   所述道路交通資訊,是指在所述綠波帶內行駛車輛的原始資訊,比如綠波帶內某一車輛當前行駛的速度資訊、車輛所處的位置資訊以及處於該位置時對應的時間資訊等。在實際應用中,很多出行者的終端設備通過移動互聯網即時向雲端傳送自己的地理位置資訊、移動速度和方向,此外,還有許多出行者通過訪問線上地圖平臺獲得導航資訊,導航資訊中包含有地理位置資訊、出行線路,這些地理位置資訊、移動速度、方向和出行線路均可作為所述綠波帶上的道路交通資訊;同時,由於移動終端設備的廣泛普及,通過上述方式實現道路交通資訊的採集,在時間維度上能夠覆蓋所述綠波帶的時段較為密集,在空間維度上能夠覆蓋所述綠波帶中路段的位置同樣更加密集,從而在時間維度和空間維度實現無盲區採集所述綠波帶的道路交通資訊。   所述路況參數,是指用於表徵衡量所述綠波帶交通狀況的參數,本實施例所述路況參數有:所述綠波帶內的平均行駛速度、速度標準差、單位速度水準上的速度離散係數和速度離散係數與平均行駛速度二者的速度相關係數。   本步驟中,根據獲取的所述綠波帶的道路交通資訊分析獲得所述綠波帶的路況參數,具體計算過程如下:   1)計算所述綠波帶內的平均行駛速度;   所述綠波帶內的平均行駛速度,等於所述綠波帶內道路交叉口劃分成的各子路段車輛行駛速度的平均值,即:

Figure 02_image003
;   其中,v為所述綠波帶內平均行駛速度,n為所述綠波帶內道路交叉口劃分成的子路段的數目,
Figure 02_image005
為第i個子路段的車輛行駛速度。   2)計算所述綠波帶內的速度標準差;   所述綠波帶內的速度標準差,等於所述綠波帶內道路交叉口劃分成的各子路段車輛行駛速度相對於所述平均行駛速度計算獲得的標準差,即:
Figure 02_image011
;   其中,std為所述綠波帶內的速度標準差。   3)計算所述綠波帶內單位速度水準上的速度離散係數;   所述綠波帶內單位速度水準上的速度離散係數,等於所述速度標準差與所述平均行駛速度的比值,即:
Figure 02_image015
;   其中,σ為所述綠波帶內單位速度水準上的速度離散係數。   4)計算所述綠波帶內速度離散係數與平均行駛速度二者的速度相關係數; r=cor(v,σ);   其中,r為所述綠波帶內速度離散係數與平均行駛速度二者的速度相關係數。   步驟S102,根據所述路況參數確定所述待優化路段在不同時段的車流狀況。   上述步驟S101根據獲取的所述綠波帶的道路交通資訊分析獲得所述綠波帶內的平均行駛速度、速度標準差、速度離散係數以及速度相關係數,本步驟中,根據上述步驟S101計算獲得的所述平均行駛速度、所述速度標準差、所述速度離散係數以及所述速度相關係數,確定所述綠波帶在不同時段的車流狀況,即所述綠波帶在一天當中的各個時段整體的車流狀況。例如,從每天的0點開始將一整天的24h劃分為48個相等時段,確定綠波帶在每一個時段內的車流狀況。   本發明實施例中,所述車流狀況包括車流高峰和車流平峰。除此之外,所述車流狀況還可以是上述提供的車流高峰和車流平峰之外的其他狀況,比如為了對所述綠波帶內交通狀況的認識更加精細,所述車流狀況包括車流高峰、車流平峰和車流低峰。   本步驟中,所述綠波帶內的車流狀況採用如下方式確定:判斷所述綠波帶在當前時段的平均行駛速度是否小於第一速度臨限值,若是,所述綠波帶在當前時段的車流狀況為車流高峰;若否,所述綠波帶在當前時段的車流狀況為車流平峰。其中,所述第一速度臨限值等於所述綠波帶內的平均行駛速度與所述綠波帶內的速度標準差二者的差值,即:
Figure 02_image019
;   其中,v.vth_1為所述第一速度臨限值。   上述實現方式根據所述綠波帶內不同時段的平均行駛速度來判定所述綠波帶在當前時段的車流狀況為車流高峰還是車流平峰。在具體實施時,還可以結合所述綠波帶內的平均行駛速度和所述速度離散係數共同來判定當前時段的車流狀況,具體實現如下:   判斷所述綠波帶在當前時段的平均行駛速度是否小於第二速度臨限值,若是,判斷所述綠波帶在當前時段的速度離散係數是否大於或者等於第一速度離散臨限值,若大於或者等於所述第一速度離散臨限值,所述綠波帶在當前時段的車流狀況為車流高峰;若小於所述第一速度離散臨限值,所述綠波帶在當前時段的車流狀況為車流平峰;若否,所述綠波帶在當前時段的車流狀況為車流平峰;其中,所述第二速度臨限值等於所述綠波帶內的平均行駛速度與所述綠波帶內的速度標準差二者的差值。   在實際應用中,除上述提供的兩種實現方式之外,還可以採用多種具體的實現方式,來確定所述綠波帶內的車流狀況。各種形式的變化都只是具體實現方式的變更,都不偏離本發明的核心,因此都在本發明的保護範圍之內。例如,在所述車流狀況為車流高峰、車流平峰和車流低峰的情況下,所述綠波帶內的車流狀況可採用如下方式確定:   判斷所述綠波帶在當前時段的平均行駛速度是否小於第三速度臨限值,若是,判斷所述綠波帶在當前時段的速度離散係數是否大於或者等於第二速度離散臨限值,若大於或者等於所述第二速度離散臨限值,所述綠波帶在當前時段的車流狀況為車流高峰;若小於所述第二速度離散臨限值,所述綠波帶在當前時段的車流狀況為車流平峰;   若否,判斷所述綠波帶在當前時段的速度離散係數是否大於或者等於第三速度離散臨限值,若大於或者等於所述第三速度離散臨限值,所述綠波帶在當前時段的車流狀況為車流低峰;若小於所述第三速度離散臨限值,所述綠波帶在當前時段的車流狀況為車流平峰;其中,所述第三速度臨限值等於所述綠波帶內的平均行駛速度與所述綠波帶內的速度標準差二者的差值。   基於此,在具體實施時,可將所述第二速度離散臨限值和所述第三速度離散臨限值設置為在數值上相等,即設置為同一速度離散臨限值。   步驟S103,在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。   上述步驟S102根據所述平均行駛速度、所述速度標準差、所述速度離散係數以及所述速度相關係數,確定所述綠波帶在不同時段的車流狀況,本步驟中,根據上述步驟S102確定的所述綠波帶在不同時段的車流狀況,在所述車流狀況對應的時段內,對所述綠波帶內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。   本實施例提供下述兩種對所述綠波帶內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制的實現方式:   1)在所述車流狀況對應的時段內,對所述綠波帶內道路交叉口的交通訊號的相位進行調整,使同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,等於二者之間的距離與二者之間的車流行駛速度的比值。   2)針對所述綠波帶內至少一個道路交叉口,執行如下操作:   在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用預先設置的交通訊號配時模型計算所述道路交叉口的平均延時時間,獲得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號。   在具體實施時,所述交通訊號配時模型可採用下述目標函數:
Figure 02_image025
其中,
Figure 02_image029
Figure 02_image033
;j為所述綠波帶內道路交叉口的相位,k為所述道路交叉口在各個車流方向上的進口引道,
Figure 02_image035
為第j個相位第k個進口引道上每輛車的平均延誤時間,
Figure 02_image037
為第j個相位第k個進口引道上的車流量,
Figure 02_image035
為第j個相位第k個進口引道上的飽和車流量,C為所述綠波帶內道路交叉***通訊號的週期時長,L為所述綠波帶內道路交叉***通訊號的週期損失,
Figure 02_image043
為第j個相位第k個進口引道上的有效綠信比,
Figure 02_image047
為第j個相位第k個進口引道上的有效綠燈時長。   在此基礎上,所述目標函數的約束條件為:所述道路交叉口各相位綠燈時間之和與週期損失求和等於週期時長,且所述道路交叉口在各相位的有效綠信比大於或者等於最小綠燈時間與週期時長的比值,即:
Figure 02_image051
其中,
Figure 02_image055
為所述最小綠燈時間,所述最小綠燈時間等於所述道路交叉口各個相位當前實際綠燈時間的最小值減去5s。此外,在實際應用中,還可以在考慮道路寬度、行人過街速度以及行人過街時間等因素的前提下確定所述最小綠燈時間,對此不做限定。   除上述提供的兩種實現方式之外,還可以採用多種具體的實現方式,實現對所述綠波帶內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。實現所述對所述綠波帶內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制的各種形式的變化,都只是具體實現方式的變更,都不偏離本發明的核心,因此都在本發明的保護範圍之內。例如,還可以將上述兩種實現方式合併另一種實現方式:   在所述車流狀況對應的時段內,對所述綠波帶內道路交叉口的交通訊號的相位進行調整,使同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,等於二者之間的距離與二者之間的車流行駛速度的比值;以及,針對所述綠波帶內至少一個道路交叉口,執行如下操作:在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用所述交通訊號配時模型計算所述道路交叉口的平均延時時間,獲得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號。   在具體實施時,還可以在所述綠波帶內進行局部進行精細化的優化控制,比如對所述綠波帶內道路交叉口劃分成的子路段進行優化控制:針對所述綠波帶內道路交叉口劃分成的至少一個子路段,執行如下操作:根據所述子路段在各車流方向的車輛行駛速度,判斷所述子路段在各車流方向的車輛行駛速度是否小於預設臨限值,若是,將所述子路段判定為擁堵子路段,並對所述擁堵子路段相鄰道路交叉口的交通訊號進行優化控制。   在實際應用中,本發明提供的所述道路交通優化方法,還可以基於所述交通訊號配時模型實現,所述交通訊號配時模型的輸入為所述道路交通資訊,輸出可以是所述綠波帶內道路交叉口的交通訊號的相位及其對應的時間資訊,所述綠波帶內道路交叉口的交通訊號的週期時長和有效綠信比,所述綠波帶內的擁堵子路段及其對應的擁堵時段三者當中的任意一個或者多個。   此外,在實際應用中,本發明提供的所述道路交通優化方法還可以基於預先建立的道路交通優化平臺實現,比如基於阿裡雲提供的大資料分析計算平臺,所述大資料分析計算平臺對外提供於上傳所述道路交通資訊的資料上傳介面,以及用於訪問所述綠波帶的交通訊號優化策略的道路交通優化服務訪問介面,比如地方交通管理部門在使用阿裡雲提供的大資料分析計算平臺對其轄區內各路段的道路交通進行優化時,可通過所述資料上傳介面上傳其轄區內各路段在過去的道路交通資訊,並通過所述道路交通優化服務訪問介面獲得針對其轄區各路段的道路交通進行優化的相應交通訊號優化策略。同時,所述大資料分析計算平臺還設置有用於獲取所述道路交通資訊的資料獲取介面,以及用於輸出所述綠波帶的交通訊號優化策略的道路交通優化介面。在具體實施時,還可以將所述道路交通優化服務訪問介面和所述道路交通優化介面設置為具有訪問和輸出所述綠波帶的交通訊號優化策略的道路交通優化介面。所述交通訊號優化策略中包含所述待優化路段內各道路交叉口的交通訊號的相位,以及各相位對應的時間資訊。   在基於阿裡雲提供的所述大資料分析計算平臺的基礎上,可結合大資料對所述綠波帶的交通訊號做出更加精准的優化,具體的,所述“大資料”(即道路交通資料)的獲取途徑有以下兩種:一是通過所述資料獲取介面從協力廠商地圖服務商獲取所述綠波帶的導航資料,所述導航資料中包含所述道路交通資訊,例如,從高德地圖獲取某一路段在過去特定時間段內的導航資料,將這些大批量的導航資料中包含的地理位置資訊、移動速度、方向和出行線路等資料資訊作為當前針對該路段的進行道路交通優化的資料依據;二是通過所述資料上傳介面接收所述綠波帶設置的交通資料獲取設備上傳的道路交通採集資料,所述道路交通採集資料中包含所述道路交通資訊,例如,通過資料上傳介面接收視頻採集設備、線圈、微波探測設備等傳統的交通資料獲取設備採集到的道路交通採集資料,將這些道路交通採集資料作為進行道路交通優化的資料依據。   此外,在上述基於阿裡雲提供的所述大資料分析計算平臺進行道路交通優化的基礎上,還可以結合所述綠波帶設置的交通訊號燈對應的介面協議,將所述交通訊號優化策略轉化為與當前介面協定匹配的資料流程,根據所述交通訊號優化策略,通過所述大資料分析計算平臺設置的交通訊號配置介面對所述綠波帶內各道路交叉***通訊號燈的交通訊號進行配置,從而實現更加智慧的道路交通優化。   綜上所述,本發明提供的所述道路交通優化方法,在對所述綠波帶的道路交通進行優化控制時,根據預先獲取到的所述綠波帶的道路交通資訊分析獲得用於衡量和確定所述綠波帶車流狀況的路況參數,並根據計算獲得的路況參數確定所述綠波帶在不同時段的車流狀況,最後在所述綠波帶車流狀況對應的時段內,通過對所述綠波帶內道路交叉口的交通訊號進行車流狀況相匹配的優化控制,從而實現對所述綠波帶道路交通的優化控制。所述道路交通優化方法通過對所述綠波帶內道路交叉口的交通訊號進行相應的優化控制,降低了車輛在通過所述綠波帶過程中的停車次數和延誤時間,從而降低了車輛通過所述綠波帶的通行時間,提升了所述綠波帶整體的通行效率,對所述綠波帶的道路交通的優化控制更加精細化和智慧化。   本發明提供的一種道路交通優化裝置實施例如下:   在上述的實施例中,提供了一種道路交通優化方法,與之相對應的,本發明還提供了一種道路交通優化裝置,下麵結合附圖進行說明。   參照附圖3,其示出了本發明提供的一種道路交通優化裝置實施例的示意圖。   由於裝置實施例與上述提供的方法實施例相互對應,閱讀本實施例的內容請參照上述方法實施例的對應說明。下述描述的裝置實施例僅僅是示意性的。   本發明提供一種道路交通優化裝置,包括:   道路交通資訊分析單元301,用於根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;   車流狀況確定單元302,用於根據所述路況參數確定所述待優化路段在不同時段的車流狀況;   優化控制單元303,用於在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。   可選的,所述路況參數包括下述至少一項:所述待優化路段內的平均行駛速度、速度標準差、單位速度水準上的速度離散係數、速度離散係數與平均行駛速度二者的速度相關係數。   可選的,所述車流狀況包括下述至少一項:車流高峰、車流平峰、車流低峰。   可選的,若所述車流狀況為車流高峰和車流平峰,相應的,所述車流狀況通過所述車流狀況確定單元302包含的第一平均行駛速度判斷子單元確定;   所述第一平均行駛速度判斷子單元,用於判斷所述待優化路段在當前時段的平均行駛速度是否小於第一速度臨限值,若是,所述待優化路段在當前時段的車流狀況為車流高峰;若否,所述待優化路段在當前時段的車流狀況為車流平峰。   可選的,所述第一速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。   可選的,若所述車流狀況為車流高峰和車流平峰,相應的,所述車流狀況通過所述車流狀況確定單元302包含的第二平均行駛速度判斷子單元確定;   所述第二平均行駛速度判斷子單元,用於判斷所述待優化路段在當前時段的平均行駛速度是否小於第二速度臨限值,若是,運行第一速度離散係數判斷子單元;若否,所述待優化路段在當前時段的車流狀況為車流平峰;   所述第一速度離散係數判斷子單元,用於判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第一速度離散臨限值,若大於或者等於所述第一速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流高峰;若小於所述第一速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;   其中,所述第二速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。   可選的,若所述車流狀況為車流高峰、車流平峰和車流低峰,相應的,所述車流狀況通過所述車流狀況確定單元302包含的第三平均行駛速度判斷子單元確定;   所述第三平均行駛速度判斷子單元,用於判斷所述待優化路段在當前時段的平均行駛速度是否小於第三速度臨限值,若是,運行第二速度離散係數判斷子單元;若否,運行第三速度離散係數判斷子單元;   所述第二速度離散係數判斷子單元,用於判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第二速度離散臨限值,若大於或者等於所述第二速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流高峰;若小於所述第二速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;   所述第三速度離散係數判斷子單元,用於判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第三速度離散臨限值,若大於或者等於所述第三速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流低峰;若小於所述第三速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;   其中,所述第三速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。   可選的,所述第二速度離散臨限值和所述第三速度離散臨限值在數值上相等。   可選的,所述優化控制單元303,包括:   第一相位調整子單元,用於在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號的相位進行調整;同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,根據二者之間的距離與二者之間的車流行駛速度的比值確定。   可選的,所述優化控制單元303,包括:   第一配置子單元,用於在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用預先設置的交通訊號配時模型計算所述道路交叉口的平均延時時間,獲得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號;   並且,針對所述待優化路段內至少一個道路交叉口,運行所述第一配置子單元。   可選的,所述優化控制單元303,包括:   第二相位調整子單元,用於在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號的相位進行調整;同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,根據二者之間的距離與二者之間的車流行駛速度的比值確定;   第二配置子單元,用於在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用預先設置的交通訊號配時模型計算所述道路交叉口的平均延時時間,獲得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號;   並且,針對所述待優化路段內至少一個道路交叉口,運行所述第二配置子單元。   可選的,所述交通訊號配時模型所採用目標函數的約束條件包括下述至少一項:所述道路交叉口各相位綠燈時間之和與週期損失求和等於週期時長,所述道路交叉口在各相位的有效綠信比大於或者等於最小綠燈時間與週期時長的比值;   其中,所述最小綠燈時間根據所述道路交叉口各個相位當前實際綠燈時間確定。   可選的,所述道路交通優化裝置,包括:   子路段優化控制單元,用於根據所述子路段在各車流方向的車輛行駛速度,判斷所述子路段在各車流方向的車輛行駛速度是否小於預設臨限值,若是,將所述子路段判定為擁堵子路段,並對所述擁堵子路段相鄰道路交叉口的交通訊號進行優化控制;   並且針對所述待優化路段內道路交叉口劃分成的至少一個子路段,運行所述子路段優化控制單元。   可選的,所述待優化路段內的平均行駛速度,根據所述待優化路段內道路交叉口劃分成的各子路段車輛行駛速度的平均值確定。   可選的,所述速度標準差,根據所述待優化路段內道路交叉口劃分成的各子路段車輛行駛速度相對於所述平均行駛速度計算獲得的標準差確定。   可選的,所述單位速度水準上的速度離散係數,根據所述速度標準差與所述平均行駛速度的比值確定。   可選的,所述道路交通優化裝置,基於所述交通訊號配時模型實現,所述交通訊號配時模型的輸入為所述道路交通資訊,輸出為所述待優化路段內道路交叉口的交通訊號的相位及其對應的時間資訊,所述待優化路段內道路交叉口的交通訊號的週期時長和有效綠信比,和/或,所述待優化路段內的擁堵子路段及其對應的擁堵時段。   可選的,所述道路交通優化裝置基於預先建立的道路交通優化平臺運行,所述道路交通優化平臺設置有用於獲取所述道路交通資訊的資料獲取介面,用於訪問以及輸出所述待優化路段的交通訊號優化策略的道路交通優化服務介面,和/或,用於上傳所述道路交通資訊的資料上傳介面;   其中,所述交通訊號優化策略中包含所述待優化路段內各道路交叉口的交通訊號的相位,以及各相位對應的時間資訊。   可選的,所述道路交通資訊分析單元301中的道路交通資訊,採用下述至少一種方式獲取:   通過所述資料獲取介面從協力廠商地圖服務商獲取所述待優化路段的導航資料,所述導航資料中包含所述道路交通資訊;   通過所述資料上傳介面接收所述待優化路段設置的交通資料獲取設備上傳的道路交通採集資料,所述道路交通採集資料中包含所述道路交通資訊。   可選的,所述道路交通優化平臺設置有交通訊號配置介面,所述道路交通優化平臺結合所述待優化路段設置的交通訊號燈對應的介面協議,通過所述交通訊號配置介面對所述待優化路段內各道路交叉***通訊號燈的交通訊號進行配置。   本發明提供的一種電子設備實施例如下:   在上述的實施例中,提供了一種道路交通優化方法,此外,本發明還提供了一種用於實現所述道路交通優化方法的電子設備,下面結合附圖進行說明。   參照附圖4,其示出了本實施例提供的一種電子設備的示意圖。   本發明提供的所述電子設備用於實現本發明提供的所述道路交通優化方法,本實施例與上述提供的道路交通優化方法實施例相對應,閱讀本實施例的內容請參照上述提供的道路交通優化方法實施例的對應說明。下述描述的實施例僅僅是示意性的。   本發明提供一種電子設備,包括:   記憶體401,以及處理器402;   所述記憶體401用於儲存電腦可執行指令,所述處理器402用於執行所述電腦可執行指令:   根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;   根據所述路況參數確定所述待優化路段在不同時段的車流狀況;   在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制。   可選的,所述路況參數包括下述至少一項:所述待優化路段內的平均行駛速度、速度標準差、單位速度水準上的速度離散係數、速度離散係數與平均行駛速度二者的速度相關係數。   可選的,所述車流狀況包括下述至少一項:車流高峰、車流平峰、車流低峰。   可選的,若所述車流狀況為車流高峰和車流平峰,相應的,所述車流狀況採用如下方式確定:   判斷所述待優化路段在當前時段的平均行駛速度是否小於第一速度臨限值,若是,所述待優化路段在當前時段的車流狀況為車流高峰;若否,所述待優化路段在當前時段的車流狀況為車流平峰。   可選的,所述第一速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。   可選的,若所述車流狀況為車流高峰和車流平峰,相應的,所述車流狀況採用如下方式確定:   判斷所述待優化路段在當前時段的平均行駛速度是否小於第二速度臨限值,若是,判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第一速度離散臨限值,若大於或者等於所述第一速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流高峰;若小於所述第一速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;若否,所述待優化路段在當前時段的車流狀況為車流平峰;   其中,所述第二速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。   可選的,若所述車流狀況為車流高峰、車流平峰和車流低峰,相應的,所述車流狀況採用如下方式確定:   判斷所述待優化路段在當前時段的平均行駛速度是否小於第三速度臨限值,若是,判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第二速度離散臨限值,若大於或者等於所述第二速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流高峰;若小於所述第二速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;   若否,判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第三速度離散臨限值,若大於或者等於所述第三速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流低峰;若小於所述第三速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;   其中,所述第三速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。   可選的,所述第二速度離散臨限值和所述第三速度離散臨限值在數值上相等。   可選的,所述在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,採用如下方式實現:   在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號的相位進行調整;同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,根據二者之間的距離與二者之間的車流行駛速度的比值確定。   可選的,所述在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,採用如下方式實現:   針對所述待優化路段內至少一個道路交叉口,執行如下操作:在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用預先設置的交通訊號配時模型計算所述道路交叉口的平均延時時間,獲得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號。   可選的,所述在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,採用如下方式實現:   在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號的相位進行調整;同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,根據二者之間的距離與二者之間的車流行駛速度的比值確定;   以及,針對所述待優化路段內至少一個道路交叉口,執行如下操作:在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用預先設置的交通訊號配時模型計算所述道路交叉口的平均延時時間,獲得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號。   可選的,所述交通訊號配時模型所採用目標函數的約束條件包括下述至少一項:所述道路交叉口各相位綠燈時間之和與週期損失求和等於週期時長,所述道路交叉口在各相位的有效綠信比大於或者等於最小綠燈時間與週期時長的比值;   其中,所述最小綠燈時間根據所述道路交叉口各個相位當前實際綠燈時間確定。   可選的,所述處理器402還用於執行下述電腦可執行指令:   針對所述待優化路段內道路交叉口劃分成的至少一個子路段,執行如下操作:根據所述子路段在各車流方向的車輛行駛速度,判斷所述子路段在各車流方向的車輛行駛速度是否小於預設臨限值,若是,將所述子路段判定為擁堵子路段,並對所述擁堵子路段相鄰道路交叉口的交通訊號進行優化控制。   可選的,所述待優化路段內的平均行駛速度,根據所述待優化路段內道路交叉口劃分成的各子路段車輛行駛速度的平均值確定。   可選的,所述速度標準差,根據所述待優化路段內道路交叉口劃分成的各子路段車輛行駛速度相對於所述平均行駛速度計算獲得的標準差確定。   可選的,所述單位速度水準上的速度離散係數,根據所述速度標準差與所述平均行駛速度的比值確定。   可選的,所述處理器402基於所述交通訊號配時模型執行所述電腦可執行指令,所述交通訊號配時模型的輸入為所述道路交通資訊,輸出為所述待優化路段內道路交叉口的交通訊號的相位及其對應的時間資訊,所述待優化路段內道路交叉口的交通訊號的週期時長和有效綠信比,和/或,所述待優化路段內的擁堵子路段及其對應的擁堵時段。   可選的,所述處理器402基於預先建立的道路交通優化平臺執行所述電腦可執行指令,所述道路交通優化平臺設置有用於獲取所述道路交通資訊的資料獲取介面,用於訪問以及輸出所述待優化路段的交通訊號優化策略的道路交通優化服務介面,和/或,用於上傳所述道路交通資訊的資料上傳介面;   其中,所述交通訊號優化策略中包含所述待優化路段內各道路交叉口的交通訊號的相位,以及各相位對應的時間資訊。   可選的,所述根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數指令中的道路交通資訊,採用下述至少一種方式獲取:   通過所述資料獲取介面從協力廠商地圖服務商獲取所述待優化路段的導航資料,所述導航資料中包含所述道路交通資訊;   通過所述資料上傳介面接收所述待優化路段設置的交通資料獲取設備上傳的道路交通採集資料,所述道路交通採集資料中包含所述道路交通資訊。   可選的,所述道路交通優化平臺設置有交通訊號配置介面,所述道路交通優化平臺結合所述待優化路段設置的交通訊號燈對應的介面協議,通過所述交通訊號配置介面對所述待優化路段內各道路交叉***通訊號燈的交通訊號進行配置。   本發明雖然以較佳實施例公開如上,但其並不是用來限定本發明,任何本領域技術人員在不脫離本發明的精神和範圍內,都可以做出可能的變動和修改,因此本發明的保護範圍應當以本發明權利要求所界定的範圍為准。   在一個典型的配置中,計算設備包括一個或多個處理器(CPU)、輸入/輸出介面、網路介面和記憶體。   記憶體可能包括電腦可讀介質中的非永久性記憶體,隨機存取記憶體(RAM)和/或非挥发性記憶體等形式,如唯讀記憶體(ROM)或快閃記憶體(flash RAM)。記憶體是電腦可讀介質的示例。   電腦可讀介質包括永久性和非永久性、可移動和非可移動媒體可以由任何方法或技術來實現資訊儲存。資訊可以是電腦可讀指令、資料結構、程式的模組或其他資料。電腦的儲存介質的例子包括,但不限於相變記憶體(PRAM)、靜態隨機存取記憶體(SRAM)、動態隨機存取記憶體(DRAM)、其他類型的隨機存取記憶體(RAM)、唯讀記憶體(ROM)、電可擦除可程式設計唯讀記憶體(EEPROM)、快閃記憶體或其他記憶體技術、唯讀光碟唯讀記憶體(CD-ROM)、數位多功能光碟(DVD)或其他光學儲存、磁盒式磁帶,磁帶磁磁片儲存或其他磁性存放裝置或任何其他非傳輸介質,可用於儲存可以被計算設備訪問的資訊。按照本文中的界定,電腦可讀介質不包括非暫存電腦可讀媒體 (transitory media),如調製的資料訊號和載波。   本領域技術人員應明白,本發明的實施例可提供為方法、系統或電腦程式產品。因此,本發明可採用完全硬體實施例、完全軟體實施例或結合軟體和硬體方面的實施例的形式。而且,本發明可採用在一個或多個其中包含有電腦可用程式碼的電腦可用儲存介質(包括但不限於磁碟記憶體、CD-ROM、光學記憶體等)上實施的電腦程式產品的形式。In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar promotions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation disclosed below. The present invention provides a road traffic optimization method, and further provides a road traffic optimization device and an electronic device. The following is a detailed description one by one with reference to the accompanying drawings of the embodiments provided by the present invention, and each step of the method is described. An example of a road traffic optimization method provided by the present invention is as follows: Referring to FIG. 1, it shows a processing flow chart of an embodiment of a road traffic optimization method provided by the present invention, and referring to FIG. A schematic diagram of a green band. Step S101 , analyzing and obtaining road condition parameters of the road section to be optimized according to the obtained road traffic information of the road section to be optimized. The road section to be optimized in the embodiment of the present invention refers to a geographical area or a road in practice, and the road traffic optimization method provided by the present invention is precisely by analyzing the road intersections covered by the geographical area or the road. The coordinated optimization of traffic signals realizes the improvement and optimization of the geographical area or the road traffic conditions. Here, this embodiment takes the green wave band as an example, and provides an implementation manner of implementing the road traffic optimization method in the green wave band, such as the green wave band shown in FIG. 2 . The green wave band refers to a geographical area or a road, and a unified traffic signal control is implemented in the geographical area or the road, and the traffic signal lights at all road intersections in the geographical area or the road coverage area are connected. , Through the coordinated control of these traffic lights, the traffic lights are all green signals (the phase is green) when passing through the road intersection during the traffic flow in the geographical area or the road, so that the traffic flow is unobstructed. pass through the geographic area or all road intersections within the road. The road traffic information refers to the original information of the vehicle driving in the green wave zone, such as the current speed information of a vehicle in the green wave zone, the position information of the vehicle, and the time information corresponding to the position. Wait. In practical applications, the terminal devices of many travelers transmit their geographic location information, moving speed and direction to the cloud in real time through the mobile Internet. In addition, many travelers obtain navigation information by accessing the online map platform. The navigation information includes Geographic location information, travel routes, these geographic location information, moving speed, direction and travel routes can be used as road traffic information on the green wave belt; at the same time, due to the widespread popularity of mobile terminal equipment, road traffic information can be realized through the above methods In the time dimension, the time period that can cover the green wave belt is relatively dense, and the position of the road sections in the green wave belt can be covered in the space dimension. The location is also denser, so that the blind spot-free collection station can be realized in the time and space dimensions. Describe the road traffic information in the green wave belt. The road condition parameters refer to parameters used to characterize and measure the traffic conditions in the green wave zone. The road condition parameters in this embodiment include: the average driving speed in the green wave zone, the standard deviation of the speed, and the speed per unit speed level. The speed dispersion coefficient and the speed correlation coefficient of both the speed dispersion coefficient and the average travel speed. In this step, the road condition parameters of the green wave zone are obtained by analyzing the obtained road traffic information of the green wave zone, and the specific calculation process is as follows: 1) Calculate the average driving speed in the green wave zone; The average driving speed in the band is equal to the average driving speed of vehicles in each sub-section divided into road intersections in the green wave band, namely:
Figure 02_image003
; Wherein, v is the average driving speed in the green wave band, n is the number of sub-sections that the road intersection in the green wave band is divided into,
Figure 02_image005
is the vehicle speed of the i-th sub-section. 2) Calculate the speed standard deviation in the green wave band; the speed standard deviation in the green wave band is equal to the vehicle speed of each sub-section divided into road intersections in the green wave band relative to the average driving speed The standard deviation obtained by the speed calculation, namely:
Figure 02_image011
; wherein, std is the standard deviation of the velocity within the green wave band. 3) Calculate the speed dispersion coefficient at the unit speed level in the green wave band; the speed dispersion coefficient at the unit speed level in the green wave band is equal to the ratio of the speed standard deviation to the average driving speed, namely:
Figure 02_image015
; wherein, σ is the velocity dispersion coefficient at the unit velocity level in the green wave band. 4) Calculate the speed correlation coefficient between the speed dispersion coefficient in the green wave band and the average driving speed; r=cor(v,σ); where r is the speed dispersion coefficient in the green wave band and the average driving speed 2 The speed correlation coefficient of the person. Step S102, determining the traffic flow conditions of the road section to be optimized in different time periods according to the road condition parameters. The above step S101 obtains the average driving speed, the speed standard deviation, the speed dispersion coefficient and the speed correlation coefficient in the green wave zone according to the obtained road traffic information analysis of the green wave zone. In this step, the calculation is obtained according to the above step S101 The average driving speed, the speed standard deviation, the speed dispersion coefficient and the speed correlation coefficient are determined to determine the traffic conditions of the green wave belt at different time periods, that is, the green wave belt in each time period of the day overall traffic conditions. For example, starting from 0:00 every day, the 24h of the whole day is divided into 48 equal time periods, and the traffic flow conditions of the green wave belt in each time period are determined. In the embodiment of the present invention, the traffic flow condition includes a traffic flow peak and a traffic flow flat peak. In addition to this, the traffic flow conditions may also be other conditions than the above-mentioned traffic peaks and flat peaks. Peak and low traffic flow. In this step, the traffic flow conditions in the green wave zone are determined in the following manner: judging whether the average driving speed of the green wave zone in the current period is less than the first speed threshold value, if so, the green wave zone is in the current period of time. If not, the traffic flow condition of the green wave zone in the current time period is the traffic flow peak. Wherein, the first speed threshold value is equal to the difference between the average driving speed in the green wave band and the speed standard deviation in the green wave band, that is:
Figure 02_image019
; Wherein, v.vth_1 is the first speed threshold value. In the above implementation manner, it is determined whether the traffic flow condition of the green wave zone in the current period is a peak traffic flow or a flat peak traffic flow according to the average driving speed in different time periods within the green wave zone. During specific implementation, the traffic flow conditions in the current period can also be determined in combination with the average driving speed in the green wave zone and the speed dispersion coefficient. The specific implementation is as follows: Determining the average driving speed of the green wave zone in the current period Whether it is less than the second speed threshold value, and if so, determine whether the speed dispersion coefficient of the green wave band in the current period is greater than or equal to the first speed dispersion threshold value, if it is greater than or equal to the first speed dispersion threshold value, The traffic flow condition of the green wave zone in the current period is a peak traffic flow; if it is less than the first speed discrete threshold value, the traffic flow condition of the green wave zone in the current period is a traffic flow peak; if not, the green wave zone The traffic flow condition in the current period is the traffic flow level peak; wherein, the second speed threshold value is equal to the difference between the average driving speed in the green wave band and the speed standard deviation in the green wave band. In practical applications, in addition to the two implementation manners provided above, a variety of specific implementation manners may also be used to determine the traffic flow conditions in the green wave band. Changes in various forms are only changes in specific implementations, do not deviate from the core of the present invention, and therefore fall within the protection scope of the present invention. For example, in the case where the traffic flow conditions are peak traffic flow, flat peak traffic flow and low traffic flow peak, the traffic flow conditions in the green wave zone may be determined in the following manner: Determine whether the average driving speed of the green wave zone in the current period is not is less than the third speed threshold value, and if so, judge whether the speed dispersion coefficient of the green wave band in the current period is greater than or equal to the second speed dispersion threshold value, if it is greater than or equal to the second speed dispersion threshold value, then The traffic flow condition of the green wave band at the current time period is the peak traffic flow; if it is less than the second speed discrete threshold value, the traffic flow condition of the green wave band at the current time period is the traffic flow flat peak; if not, it is judged that the green wave band Whether the speed dispersion coefficient in the current time period is greater than or equal to the third speed dispersion threshold value, if it is greater than or equal to the third speed dispersion threshold value, the traffic flow condition of the green wave zone in the current time period is a low traffic flow peak; if is less than the third speed discrete threshold value, the traffic flow condition of the green wave band in the current period is a flat peak of traffic flow; wherein, the third speed threshold value is equal to the average travel speed in the green wave band and the The difference between the two speed standard deviations in the green band. Based on this, during specific implementation, the second speed dispersion threshold value and the third speed dispersion threshold value may be set to be equal in value, that is, set to the same speed dispersion threshold value. Step S103, within the time period corresponding to the traffic flow condition, perform optimization control on the traffic signal of the road intersection in the road section to be optimized that matches the traffic flow condition. In the above step S102, according to the average driving speed, the speed standard deviation, the speed dispersion coefficient and the speed correlation coefficient, determine the traffic flow conditions of the green wave belt in different time periods. In this step, determine according to the above step S102. According to the traffic flow conditions of the green wave belt in different time periods, in the time period corresponding to the traffic flow conditions, the traffic signals at the road intersections in the green wave belt are optimized and controlled to match the traffic flow conditions. This embodiment provides the following two implementation manners for optimizing the control of traffic signals at road intersections in the green wave belt that match the traffic flow conditions: 1) During the time period corresponding to the traffic flow conditions, control all The phases of the traffic signals at the road intersections in the green wave belt are adjusted so that the phase difference of the traffic signals at the two adjacent road intersections in the same traffic direction is equal to the distance between the two and the traffic flow between the two. ratio of speed. 2) For at least one road intersection in the green wave band, perform the following operations: within the time period corresponding to the traffic flow condition, according to the cycle duration and the effective green signal ratio of the traffic signal at the road intersection, use the preset The set traffic signal timing model calculates the average delay time of the road intersection, obtains the corresponding cycle duration and the effective green signal ratio when the average delay time is the minimum value, and obtains the cycle duration and the effective green signal ratio according to the obtained cycle duration and effective green signal ratio. Than configure the traffic signal of the road intersection. In specific implementation, the traffic signal timing model can adopt the following objective function:
Figure 02_image025
in,
Figure 02_image029
,
Figure 02_image033
j is the phase of the road intersection in the green wave band, k is the entrance approach of the road intersection in each traffic direction,
Figure 02_image035
is the average delay time of each vehicle on the kth approach road of the jth phase,
Figure 02_image037
is the traffic flow on the kth entrance approach road of the jth phase,
Figure 02_image035
is the saturated traffic flow on the kth entrance approach road of the jth phase, C is the cycle duration of the traffic signal at the road intersection in the green wave band, L is the cycle loss of the traffic signal at the road intersection in the green wave band ,
Figure 02_image043
is the effective green-signal ratio on the k-th entrance approach of the j-th phase,
Figure 02_image047
is the effective green light duration on the kth entrance approach road of the jth phase. On this basis, the constraints of the objective function are: the sum of the green light time of each phase of the road intersection and the sum of the period loss is equal to the period length, and the effective green signal ratio of the road intersection in each phase is greater than Or equal to the ratio of the minimum green light time to the cycle duration, namely:
Figure 02_image051
in,
Figure 02_image055
is the minimum green light time, and the minimum green light time is equal to the minimum value of the current actual green light time of each phase of the road intersection minus 5s. In addition, in practical applications, the minimum green light time may also be determined under the premise of considering factors such as road width, pedestrian crossing speed, pedestrian crossing time, etc., which is not limited. In addition to the two implementation manners provided above, a variety of specific implementation manners may also be adopted to realize the optimal control of the traffic signals at the road intersection in the green wave band that matches the traffic flow conditions. The various forms of changes to realize the optimal control of the traffic signals at the road intersections in the green wave zone that match the traffic flow conditions are only changes in the specific implementation methods, and do not deviate from the core of the present invention. Therefore, All fall within the protection scope of the present invention. For example, the above two implementation manners can also be combined into another implementation manner: in the time period corresponding to the traffic flow condition, the phase of the traffic signal at the road intersection in the green wave band is adjusted, so that the phase of the same traffic flow direction is adjusted. The phase difference of the traffic signals of two adjacent road intersections is equal to the ratio of the distance between the two to the speed of the traffic flow between the two; and, for at least one road intersection within the green wave band, perform the following operations : in the time period corresponding to the traffic conditions, according to the cycle duration and the effective green signal ratio of the traffic signal at the road intersection, use the traffic signal timing model to calculate the average delay time of the road intersection, and obtain When the average delay time is the minimum value, the corresponding cycle duration and the effective green signal ratio are used, and the traffic signal of the road intersection is configured according to the obtained cycle duration and the effective green signal ratio. During specific implementation, it is also possible to perform local refined optimization control within the green wave band, for example, performing optimal control on sub-sections divided into road intersections in the green wave band: At least one sub-section divided into at least one road intersection, perform the following operations: according to the vehicle speed of the sub-section in each traffic direction, determine whether the vehicle speed of the sub-section in each traffic direction is less than a preset threshold value, If so, the sub-road segment is determined as a congested sub-road segment, and the traffic signals at the adjacent road intersections of the congested sub-road segment are optimally controlled. In practical applications, the road traffic optimization method provided by the present invention can also be implemented based on the traffic signal timing model, the input of the traffic signal timing model is the road traffic information, and the output can be the green The phase of the traffic signal at the road intersection in the green wave band and its corresponding time information, the cycle duration and the effective green signal ratio of the traffic signal at the road intersection in the green wave band, the congested sub-sections in the green wave band and any one or more of the three corresponding congestion periods. In addition, in practical applications, the road traffic optimization method provided by the present invention can also be implemented based on a pre-established road traffic optimization platform, for example, based on the big data analysis and computing platform provided by Alibaba Cloud, which provides external The data uploading interface for uploading the road traffic information, and the road traffic optimization service access interface for accessing the traffic signal optimization strategy of the green wave belt, for example, the local traffic management department is using the big data analysis and computing platform provided by Alibaba Cloud When optimizing the road traffic of each road section within its jurisdiction, it can upload the past road traffic information of each road section within its jurisdiction through the data upload interface, and obtain the road traffic information for each road section in its jurisdiction through the road traffic optimization service access interface. The corresponding traffic signal optimization strategy for road traffic optimization. At the same time, the big data analysis and computing platform is further provided with a data acquisition interface for acquiring the road traffic information, and a road traffic optimization interface for outputting the traffic signal optimization strategy of the green wave zone. During specific implementation, the road traffic optimization service access interface and the road traffic optimization interface may also be set as a road traffic optimization interface having a traffic signal optimization strategy for accessing and outputting the green wave zone. The traffic signal optimization strategy includes phases of traffic signals at each road intersection in the road section to be optimized, and time information corresponding to each phase. On the basis of the big data analysis and computing platform provided by Alibaba Cloud, the traffic signals of the green wave belt can be more accurately optimized in combination with big data. Specifically, the "big data" (that is, road traffic There are two ways to obtain the data): one is to obtain the navigation data of the green wave belt from the third-party map service provider through the data acquisition interface, and the navigation data includes the road traffic information, for example, from high German Maps obtains the navigation data of a certain road section in a specific time period in the past, and uses the geographic location information, moving speed, direction and travel route information contained in these large quantities of navigation data as the current road traffic optimization for this road section. The second is to receive the road traffic collection data uploaded by the traffic data acquisition device set in the green wave belt through the data upload interface, and the road traffic collection data includes the road traffic information, for example, through data uploading The interface receives the road traffic acquisition data collected by traditional traffic data acquisition equipment such as video acquisition equipment, coils, and microwave detection equipment, and uses these road traffic acquisition data as the data basis for road traffic optimization. In addition, on the basis of the above-mentioned road traffic optimization based on the big data analysis and computing platform provided by Alibaba Cloud, the traffic signal optimization strategy can also be converted into the interface protocol corresponding to the traffic lights set in the green wave band. In order to match the data flow with the current interface agreement, according to the traffic signal optimization strategy, through the traffic signal configuration interface set by the big data analysis and calculation platform, the traffic signal of each road intersection traffic signal in the green wave band is processed. configuration, so as to achieve more intelligent road traffic optimization. To sum up, in the road traffic optimization method provided by the present invention, when the road traffic in the green wave zone is optimized and controlled, the road traffic information of the green wave zone obtained in advance is analyzed and obtained for measurement. and road condition parameters for determining the traffic conditions of the green wave zone, and determining the traffic conditions of the green wave zone in different time periods according to the road condition parameters obtained by calculation, and finally, in the time period corresponding to the traffic conditions of the green wave zone, by analyzing all the traffic conditions of the green wave zone The traffic signals at the road intersections in the green wave zone are optimally controlled to match the traffic flow conditions, so as to realize the optimal control of the road traffic in the green wave zone. The road traffic optimization method reduces the number of stops and the delay time of vehicles in the process of passing through the green wave zone by performing corresponding optimization control on the traffic signals of the road intersections in the green wave zone, thereby reducing the number of vehicles passing through the green wave zone. The transit time of the green wave belt improves the overall traffic efficiency of the green wave belt, and the optimal control of road traffic in the green wave belt is more refined and intelligent. An example of a road traffic optimization device provided by the present invention is as follows: In the above-mentioned embodiments, a road traffic optimization method is provided, and correspondingly, the present invention also provides a road traffic optimization device, which is carried out below with reference to the accompanying drawings. illustrate. Referring to FIG. 3 , it shows a schematic diagram of an embodiment of a road traffic optimization device provided by the present invention. Since the apparatus embodiments and the method embodiments provided above correspond to each other, to read the contents of this embodiment, please refer to the corresponding descriptions of the above method embodiments. The apparatus embodiments described below are merely illustrative. The present invention provides a road traffic optimization device, comprising: a road traffic information analysis unit 301 for analyzing and obtaining road condition parameters of the road section to be optimized according to the obtained road traffic information of the road section to be optimized; The road condition parameter determines the traffic flow conditions of the road section to be optimized in different time periods; the optimization control unit 303 is configured to, within the time period corresponding to the traffic flow conditions, compare the traffic signals of the road intersections in the road section to be optimized with all traffic signals. The optimal control that matches the above-mentioned traffic flow conditions. Optionally, the road condition parameters include at least one of the following: the average driving speed in the road section to be optimized, the speed standard deviation, the speed dispersion coefficient on a unit speed level, the speed of both the speed dispersion coefficient and the average driving speed. correlation coefficient. Optionally, the traffic flow conditions include at least one of the following: peak traffic flow, flat peak traffic flow, and low peak traffic flow. Optionally, if the traffic flow condition is a traffic flow peak and a traffic flow flat peak, correspondingly, the traffic flow condition is determined by the first average driving speed judging subunit included in the traffic flow condition determination unit 302; the first average driving speed A judging subunit for judging whether the average driving speed of the road section to be optimized in the current period is less than the first speed threshold value, if so, the traffic flow condition of the road section to be optimized in the current period is a peak traffic flow; if not, the The traffic flow condition of the road section to be optimized in the current period is the traffic flow level peak. Optionally, the first speed threshold value is determined according to the difference between the average driving speed in the road section to be optimized and the standard deviation of the speed in the road section to be optimized. Optionally, if the traffic flow condition is a peak of traffic flow and a flat peak of traffic flow, correspondingly, the traffic flow condition is determined by the second average driving speed judging subunit included in the traffic flow condition determination unit 302; the second average driving speed a judging subunit for judging whether the average driving speed of the road section to be optimized in the current time period is less than the second speed threshold value, if so, run the first speed dispersion coefficient judgment subunit; if not, the road section to be optimized is currently The traffic flow condition of the time period is the traffic flow level peak; the first speed dispersion coefficient judgment subunit is used to judge whether the speed dispersion coefficient of the road section to be optimized in the current time period is greater than or equal to the first speed dispersion threshold value, if it is greater than or equal to For the first speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current period is the traffic peak; if it is less than the first speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current period is the traffic flow Peak leveling; wherein, the second speed threshold value is determined according to the difference between the average driving speed in the road section to be optimized and the standard deviation of the speed in the road section to be optimized. Optionally, if the traffic flow condition is a traffic flow peak, a traffic flow flat peak, and a traffic flow low peak, correspondingly, the traffic flow condition is determined by the third average driving speed judging subunit included in the traffic flow condition determination unit 302; Three average driving speed judging subunits, used for judging whether the average driving speed of the road section to be optimized in the current time period is less than the third speed threshold value, if so, run the second speed dispersion coefficient judging subunit; if not, run the third a speed dispersion coefficient judging subunit; the second speed dispersion coefficient judging subunit is used to judge whether the speed dispersion coefficient of the road segment to be optimized in the current period is greater than or equal to the second speed dispersion threshold, if it is greater than or equal to the The second speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current time period is the traffic flow peak; if it is less than the second speed discrete threshold value, the traffic flow condition of the to-be-optimized road section in the current time period is the traffic flow level peak ; The third speed dispersion coefficient judging subunit is used to determine whether the speed dispersion coefficient of the road segment to be optimized in the current period is greater than or equal to the third speed dispersion threshold, if it is greater than or equal to the third speed dispersion threshold; the limit value, the traffic flow condition of the road section to be optimized in the current period is a low-peak traffic flow; if it is less than the third speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current period is a traffic flow peak; wherein, the The third speed threshold value is determined according to the difference between the average driving speed in the road section to be optimized and the standard deviation of the speed in the road section to be optimized. Optionally, the second speed dispersion threshold value and the third speed dispersion threshold value are equal in value. Optionally, the optimization control unit 303 includes: a first phase adjustment subunit, configured to adjust the phase of the traffic signal at the road intersection in the road section to be optimized within a time period corresponding to the traffic flow condition; The phase difference of the traffic signals of two adjacent road intersections in the same traffic flow direction is determined according to the ratio between the distance between the two and the speed of the traffic flow between the two. Optionally, the optimization control unit 303 includes: a first configuration sub-unit, configured to, within the time period corresponding to the traffic flow condition, according to the cycle duration and the effective green signal ratio of the traffic signal at the road intersection, Calculate the average delay time of the road intersection by using the preset traffic signal timing model, obtain the corresponding cycle duration and the effective green signal ratio when the average delay time is the minimum value, and obtain the cycle duration and effective green signal ratio according to the obtained cycle duration and effective The green-signal ratio configures the traffic signal of the road intersection; and, for at least one road intersection in the road section to be optimized, the first configuration sub-unit is run. Optionally, the optimization control unit 303 includes: a second phase adjustment subunit, configured to adjust the phase of the traffic signal at the road intersection in the road section to be optimized within the time period corresponding to the traffic flow condition; The phase difference of the traffic signals of two adjacent road intersections in the same traffic flow direction is determined according to the ratio between the distance between the two and the speed of the traffic flow between the two; the second configuration subunit is used for the traffic flow in the traffic flow. During the time period corresponding to the situation, according to the cycle duration and the effective green signal ratio of the traffic signal at the road intersection, the average delay time of the road intersection is calculated by using the preset traffic signal timing model, and the average delay time is obtained. The corresponding cycle duration and the effective green signal ratio when the time is the minimum value, and configure the traffic signal of the road intersection according to the obtained cycle duration and the effective green signal ratio; and, for at least one road in the to-be-optimized road section At the intersection, run the second configuration subunit. Optionally, the constraints of the objective function adopted by the traffic signal timing model include at least one of the following: the sum of the green light time of each phase at the road intersection and the sum of the period loss is equal to the period length, and the road intersection is equal to the period length. The effective green signal ratio of the interface in each phase is greater than or equal to the ratio of the minimum green light time to the cycle duration; wherein the minimum green light time is determined according to the current actual green light time of each phase of the road intersection. Optionally, the road traffic optimization device includes: a sub-segment optimization control unit, configured to determine whether the vehicle speed of the sub-segment in each traffic direction is less than The preset threshold value, if yes, determine the sub-road segment as a congested sub-road segment, and perform optimal control on the traffic signals of the adjacent road intersections of the congested sub-road segment; and divide the road intersections in the road segment to be optimized. At least one sub-road segment is formed, and the sub-road segment optimization control unit is run. Optionally, the average driving speed in the road section to be optimized is determined according to the average value of the vehicle driving speed of each sub-section divided into road intersections in the road section to be optimized. Optionally, the speed standard deviation is determined according to the standard deviation obtained by calculating the vehicle running speed of each sub-section divided into road intersections in the road section to be optimized relative to the average running speed. Optionally, the speed dispersion coefficient at the unit speed level is determined according to the ratio of the speed standard deviation to the average travel speed. Optionally, the road traffic optimization device is implemented based on the traffic signal timing model, the input of the traffic signal timing model is the road traffic information, and the output is the traffic at the road intersection in the road section to be optimized. The phase of the signal and its corresponding time information, the cycle duration and the effective green signal ratio of the traffic signal at the road intersection in the road section to be optimized, and/or, the congested sub-sections in the road section to be optimized and their corresponding Congested time. Optionally, the road traffic optimization device operates based on a pre-established road traffic optimization platform, and the road traffic optimization platform is provided with a data acquisition interface for acquiring the road traffic information, for accessing and outputting the road section to be optimized. The road traffic optimization service interface of the traffic signal optimization strategy, and/or, the data upload interface for uploading the road traffic information; wherein, the traffic signal optimization strategy includes the road intersections in the road section to be optimized. The phase of the traffic signal, and the time information corresponding to each phase. Optionally, the road traffic information in the road traffic information analysis unit 301 is obtained in at least one of the following ways: Obtain the navigation data of the road section to be optimized from the third-party map service provider through the data acquisition interface, and the The navigation data includes the road traffic information; the road traffic collection data uploaded by the traffic data acquisition device for setting the road section to be optimized is received through the data upload interface, and the road traffic collection data includes the road traffic information. Optionally, the road traffic optimization platform is provided with a traffic signal configuration interface. Optimize the traffic signal configuration of the traffic lights at each road intersection in the road section. An example of an electronic device provided by the present invention is as follows: In the above-mentioned embodiment, a road traffic optimization method is provided. In addition, the present invention also provides an electronic device for implementing the road traffic optimization method. figure to illustrate. Referring to FIG. 4 , it shows a schematic diagram of an electronic device provided in this embodiment. The electronic device provided by the present invention is used to implement the road traffic optimization method provided by the present invention. This embodiment corresponds to the road traffic optimization method embodiment provided above. To read the content of this embodiment, please refer to the road traffic optimization method provided above. Corresponding description of the embodiment of the traffic optimization method. The embodiments described below are merely illustrative. The present invention provides an electronic device, comprising: a memory 401 and a processor 402; the memory 401 is used to store computer-executable instructions, and the processor 402 is used to execute the computer-executable instructions: Analyzing the road traffic information of the optimized road section to obtain road condition parameters of the road section to be optimized; determining the traffic flow conditions of the to-be-optimized road section in different time periods according to the road condition parameters; The traffic signals of road intersections in the road section are optimally controlled to match the traffic flow conditions. Optionally, the road condition parameters include at least one of the following: the average driving speed in the road section to be optimized, the speed standard deviation, the speed dispersion coefficient on a unit speed level, the speed of both the speed dispersion coefficient and the average driving speed. correlation coefficient. Optionally, the traffic flow conditions include at least one of the following: peak traffic flow, flat peak traffic flow, and low peak traffic flow. Optionally, if the traffic flow condition is a traffic flow peak and a traffic flow flat peak, correspondingly, the traffic flow condition is determined in the following manner: judging whether the average driving speed of the road section to be optimized in the current time period is less than a first speed threshold value, If yes, the traffic flow condition of the road section to be optimized in the current period is a peak traffic flow; if not, the traffic flow condition of the road section to be optimized in the current period is a traffic flow peak. Optionally, the first speed threshold value is determined according to the difference between the average driving speed in the road section to be optimized and the standard deviation of the speed in the road section to be optimized. Optionally, if the traffic flow condition is a peak traffic flow and a flat peak traffic flow, correspondingly, the traffic flow condition is determined in the following manner: judging whether the average driving speed of the road section to be optimized in the current time period is less than a second speed threshold value, If yes, judge whether the speed dispersion coefficient of the road section to be optimized in the current time period is greater than or equal to the first speed dispersion threshold value, if it is greater than or equal to the first speed dispersion threshold value, the speed dispersion coefficient of the road section to be optimized in the current time period is determined. The traffic flow condition is the peak traffic flow; if it is less than the first speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current period is the traffic flow peak; if not, the traffic flow condition of the road section to be optimized in the current period is the traffic flow peak ; wherein, the second speed threshold value is determined according to the difference between the average driving speed in the road section to be optimized and the standard deviation of the speed in the road section to be optimized. Optionally, if the traffic flow condition is a peak traffic flow, a flat peak traffic flow, and a low peak traffic flow, correspondingly, the traffic flow condition is determined in the following manner: Determine whether the average driving speed of the road section to be optimized in the current period is less than a third speed Threshold value, if yes, determine whether the speed dispersion coefficient of the road segment to be optimized in the current period is greater than or equal to the second speed dispersion threshold value, if it is greater than or equal to the second speed dispersion threshold value, the road segment to be optimized The traffic flow condition in the current period is the peak traffic flow; if it is less than the second speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current period is the traffic flow peak; Whether the speed dispersion coefficient is greater than or equal to the third speed dispersion threshold value, if it is greater than or equal to the third speed dispersion threshold value, the traffic flow condition of the road section to be optimized in the current period is a low traffic flow peak; if it is less than the third speed dispersion threshold value Three speed discrete threshold values, the traffic flow condition of the road section to be optimized in the current period is a flat peak of traffic flow; wherein, the third speed threshold value is based on the average driving speed in the road section to be optimized and the road section to be optimized. The difference between the two speed standard deviations is determined. Optionally, the second speed dispersion threshold value and the third speed dispersion threshold value are equal in value. Optionally, in the time period corresponding to the traffic flow condition, the optimization control of the traffic signal at the road intersection in the road section to be optimized that matches the traffic flow condition is implemented in the following manner: During the time period corresponding to the situation, the phase of the traffic signal at the road intersection in the road section to be optimized is adjusted; the phase difference of the traffic signal at the two adjacent road intersections in the same traffic direction is determined according to the distance The ratio of the traffic speed between the two is determined. Optionally, in the time period corresponding to the traffic flow condition, the optimization control of the traffic signal at the road intersection in the road section to be optimized that matches the traffic flow condition is implemented in the following manner: for the to-be-optimized road section Optimizing at least one road intersection in the road section, and performing the following operations: in the time period corresponding to the traffic flow condition, according to the cycle duration and the effective green signal ratio of the traffic signal at the road intersection, use the preset traffic signal timing allocation The model calculates the average delay time of the road intersection, obtains the corresponding cycle duration and effective green signal ratio when the average delay time is the minimum value, and configures the road intersection according to the obtained cycle duration and effective green signal ratio mouth traffic signal. Optionally, in the time period corresponding to the traffic flow condition, the optimization control of the traffic signal at the road intersection in the road section to be optimized that matches the traffic flow condition is implemented in the following manner: During the time period corresponding to the situation, the phase of the traffic signal at the road intersection in the road section to be optimized is adjusted; the phase difference of the traffic signal at the two adjacent road intersections in the same traffic direction is determined according to the distance determining the ratio of the speed of the traffic flow between the two; and, for at least one road intersection in the road section to be optimized, perform the following operations: within the time period corresponding to the traffic flow condition, according to the traffic signal of the road intersection Calculate the average delay time of the road intersection by using the preset traffic signal timing model, and obtain the corresponding cycle length and effective green signal ratio when the average delay time is the minimum value. , and configure the traffic signal of the road intersection according to the obtained cycle duration and the effective green signal ratio. Optionally, the constraints of the objective function adopted by the traffic signal timing model include at least one of the following: the sum of the green light time of each phase at the road intersection and the sum of the period loss is equal to the period length, and the road intersection is equal to the period length. The effective green signal ratio of the interface in each phase is greater than or equal to the ratio of the minimum green light time to the cycle duration; wherein the minimum green light time is determined according to the current actual green light time of each phase of the road intersection. Optionally, the processor 402 is further configured to execute the following computer-executable instructions: For at least one sub-section divided into a road intersection in the section to be optimized, perform the following operation: according to the sub-section, perform the following operations in each traffic flow. Determine whether the vehicle speed of the sub-section in each traffic flow direction is less than the preset threshold value, if so, determine the sub-section as a congested sub-section, and evaluate the adjacent roads of the congested sub-section. Optimal control of traffic signals at intersections. Optionally, the average driving speed in the road section to be optimized is determined according to the average value of the vehicle driving speed of each sub-section divided into road intersections in the road section to be optimized. Optionally, the speed standard deviation is determined according to the standard deviation obtained by calculating the vehicle running speed of each sub-section divided into road intersections in the road section to be optimized relative to the average running speed. Optionally, the speed dispersion coefficient at the unit speed level is determined according to the ratio of the speed standard deviation to the average travel speed. Optionally, the processor 402 executes the computer-executable instruction based on the traffic signal timing model, the input of the traffic signal timing model is the road traffic information, and the output is the road in the road section to be optimized. The phase of the traffic signal at the intersection and its corresponding time information, the cycle duration and the effective green signal ratio of the traffic signal at the road intersection in the road section to be optimized, and/or, the congested sub-sections in the road section to be optimized and its corresponding congestion period. Optionally, the processor 402 executes the computer-executable instructions based on a pre-established road traffic optimization platform, and the road traffic optimization platform is provided with a data acquisition interface for acquiring the road traffic information for accessing and outputting. A road traffic optimization service interface for the traffic signal optimization strategy of the road section to be optimized, and/or a data upload interface for uploading the road traffic information; wherein, the traffic signal optimization strategy includes the traffic signal optimization strategy in the road section to be optimized. The phase of the traffic signal at each road intersection, and the time information corresponding to each phase. Optionally, the road traffic information in the road condition parameter instruction of the road section to be optimized is obtained by analyzing the obtained road traffic information of the road section to be optimized, and the road traffic information is obtained in at least one of the following ways: from a third-party manufacturer through the data acquisition interface The map service provider obtains the navigation data of the road section to be optimized, and the navigation data includes the road traffic information; receives the road traffic collection data uploaded by the device for obtaining the traffic data set on the road section to be optimized through the data upload interface, The road traffic information includes the road traffic information. Optionally, the road traffic optimization platform is provided with a traffic signal configuration interface. Optimize the traffic signal configuration of the traffic lights at each road intersection in the road section. Although the present invention is disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be subject to the scope defined by the claims of the present invention. In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. Memory may include non-persistent memory in computer readable media, random access memory (RAM) and/or non-volatile memory in the form of read only memory (ROM) or flash memory (flash). RAM). Memory is an example of a computer-readable medium. Computer readable media includes both permanent and non-permanent, removable and non-removable media and can be implemented by any method or technology for storage of information. Information can be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM) , Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash Memory or Other Memory Technologies, CD-ROM Read-Only Memory (CD-ROM), Digital Versatile A compact disc (DVD) or other optical storage, magnetic cassette, magnetic tape storage or other magnetic storage device or any other non-transmission medium may be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include non-transitory computer-readable media (transitory media), such as modulated data signals and carrier waves. As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) having computer-usable code embodied therein .

301‧‧‧道路交通資訊分析單元302‧‧‧車流狀況確定單元303‧‧‧優化控制單元401‧‧‧記憶體402‧‧‧處理器301‧‧‧Road Traffic Information Analysis Unit 302‧‧‧Traffic Flow Status Determination Unit 303‧‧‧Optimization Control Unit 401‧‧‧Memory 402‧‧‧Processor

附圖1是本發明提供的一種道路交通優化方法實施例的處理流程圖;   附圖2是本發明提供的一種綠波帶的示意圖;   附圖3是本發明提供的一種道路交通優化裝置實施例的示意圖;   附圖4是本發明提供的一種電子設備實施例的示意圖。Accompanying drawing 1 is a processing flow chart of an embodiment of a road traffic optimization method provided by the present invention; Accompanying drawing 2 is a schematic diagram of a green wave belt provided by the present invention; Accompanying drawing 3 is an embodiment of a road traffic optimization device provided by the present invention Figure 4 is a schematic diagram of an embodiment of an electronic device provided by the present invention.

Claims (21)

一種道路交通優化方法,其包括:根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;根據所述路況參數確定所述待優化路段在不同時段的車流狀況;在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制;針對所述待優化路段內道路交叉口劃分成的至少一個子路段,執行如下操作:根據所述子路段在各車流方向的車輛行駛速度,判斷所述子路段在各車流方向的車輛行駛速度是否小於預設臨限值,若是,將所述子路段判定為擁堵子路段,並對所述擁堵子路段相鄰道路交叉口的交通訊號進行優化控制。 A road traffic optimization method, comprising: analyzing and obtaining road condition parameters of the road segment to be optimized according to the acquired road traffic information of the road segment to be optimized; determining the traffic flow conditions of the road segment to be optimized in different time periods according to the road condition parameters; During the time period corresponding to the traffic flow condition, the traffic signal of the road intersection in the road section to be optimized is controlled to be optimized and controlled to match the traffic flow condition; for at least one sub-section divided into the road intersection in the road section to be optimized , and perform the following operations: according to the vehicle speed of the sub-section in each traffic flow direction, determine whether the vehicle speed of the sub-section in each traffic direction is less than a preset threshold value, and if so, determine the sub-section as congestion sub-road sections, and optimally control the traffic signals at the adjacent road intersections of the congested sub-road sections. 如申請專利範圍第1項所述的道路交通優化方法,其中,所述路況參數包括下述至少一項:所述待優化路段內的平均行駛速度、速度標準差、單位速度水準上的速度離散係數、速度離散係數與平均行駛速度二者的速度相關係數。 The road traffic optimization method according to claim 1, wherein the road condition parameters include at least one of the following: an average driving speed, a speed standard deviation, and a speed dispersion at a unit speed level in the road section to be optimized. The speed correlation coefficient of the coefficient, the speed dispersion coefficient and the average driving speed. 如申請專利範圍第2項所述的道路交通優化方法,其 中,所述車流狀況包括下述至少一項:車流高峰、車流平峰、車流低峰。 As for the road traffic optimization method described in item 2 of the scope of the patent application, its wherein, the traffic flow conditions include at least one of the following: peak traffic flow, flat peak traffic flow, and low traffic flow peak. 如申請專利範圍第3項所述的道路交通優化方法,其中,若所述車流狀況為車流高峰和車流平峰,相應的,所述車流狀況採用如下方式確定:判斷所述待優化路段在當前時段的平均行駛速度是否小於第一速度臨限值,若是,所述待優化路段在當前時段的車流狀況為車流高峰;若否,所述待優化路段在當前時段的車流狀況為車流平峰。 The road traffic optimization method according to item 3 of the scope of the application, wherein, if the traffic flow condition is a traffic flow peak and a traffic flow flat peak, correspondingly, the traffic flow condition is determined in the following manner: judging that the road section to be optimized is in the current time period Whether the average driving speed is less than the first speed threshold, if so, the traffic flow condition of the road section to be optimized in the current period is a peak traffic flow; if not, the traffic flow condition of the road section to be optimized in the current period is a traffic flow peak. 如申請專利範圍第4項所述的道路交通優化方法,其中,所述第一速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。 The road traffic optimization method according to claim 4, wherein the first speed threshold value is based on both the average driving speed in the to-be-optimized road section and the speed standard deviation in the to-be-optimized road section difference is determined. 如申請專利範圍第3項所述的道路交通優化方法,其中,若所述車流狀況為車流高峰和車流平峰,相應的,所述車流狀況採用如下方式確定:判斷所述待優化路段在當前時段的平均行駛速度是否小於第二速度臨限值,若是,判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第一速度離散臨限值,若大於或者等於所述第一速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流高峰;若小於所述第 一速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;若否,所述待優化路段在當前時段的車流狀況為車流平峰;其中,所述第二速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的差值確定。 The road traffic optimization method according to item 3 of the scope of the application, wherein, if the traffic flow condition is a traffic flow peak and a traffic flow flat peak, correspondingly, the traffic flow condition is determined in the following manner: judging that the road section to be optimized is in the current time period Whether the average driving speed is less than the second speed threshold, if so, determine whether the speed dispersion coefficient of the road segment to be optimized in the current period is greater than or equal to the first speed dispersion threshold, if it is greater than or equal to the first speed dispersion Threshold value, the traffic flow condition of the road section to be optimized in the current period is the peak traffic flow; A speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current time period is the traffic flow flat peak; if not, the traffic flow condition of the to-be-optimized road section in the current time period is the traffic flow flat peak value; wherein, the second speed threshold value , which is determined according to the difference between the average driving speed in the road section to be optimized and the standard deviation of the speed in the road section to be optimized. 如申請專利範圍第3項所述的道路交通優化方法,其中,若所述車流狀況為車流高峰、車流平峰和車流低峰,相應的,所述車流狀況採用如下方式確定:判斷所述待優化路段在當前時段的平均行駛速度是否小於第三速度臨限值,若是,判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第二速度離散臨限值,若大於或者等於所述第二速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流高峰;若小於所述第二速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;若否,判斷所述待優化路段在當前時段的速度離散係數是否大於或者等於第三速度離散臨限值,若大於或者等於所述第三速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流低峰;若小於所述第三速度離散臨限值,所述待優化路段在當前時段的車流狀況為車流平峰;其中,所述第三速度臨限值,根據所述待優化路段內的平均行駛速度與所述待優化路段內的速度標準差二者的 差值確定。 The road traffic optimization method according to item 3 of the scope of the application, wherein, if the traffic flow condition is a traffic flow peak, a traffic flow flat peak, and a traffic flow low peak, correspondingly, the traffic flow condition is determined by the following method: judging the traffic flow condition to be optimized Whether the average driving speed of the road segment in the current period is less than the third speed threshold value, if so, determine whether the speed dispersion coefficient of the road segment to be optimized in the current period is greater than or equal to the second speed dispersion threshold value, if it is greater than or equal to the The second speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current period is a peak traffic flow; if it is less than the second speed discrete threshold value, the traffic flow status of the road section to be optimized in the current period is a traffic flow peak; If not, judge whether the speed dispersion coefficient of the road segment to be optimized in the current time period is greater than or equal to the third speed dispersion threshold value, if it is greater than or equal to the third speed dispersion threshold value, the road segment to be optimized is in the current time period. If the traffic flow condition is less than the third speed discrete threshold value, the traffic flow condition of the road section to be optimized in the current period is the traffic flow level peak; wherein, the third speed threshold value is determined according to the The difference between the average driving speed in the optimized section and the standard deviation of the speed in the section to be optimized The difference is determined. 如申請專利範圍第7項所述的道路交通優化方法,其中,所述第二速度離散臨限值和所述第三速度離散臨限值在數值上相等。 The road traffic optimization method according to claim 7, wherein the second speed dispersion threshold value and the third speed dispersion threshold value are equal in value. 如申請專利範圍第3項所述的道路交通優化方法,其中,所述在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,採用如下方式實現:在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號的相位進行調整;同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,根據二者之間的距離與二者之間的車流行駛速度的比值確定。 The road traffic optimization method according to claim 3, wherein, in the time period corresponding to the traffic flow condition, the traffic signal at the road intersection in the road section to be optimized is matched with the traffic flow condition The optimization control is realized in the following ways: in the time period corresponding to the traffic flow condition, the phase of the traffic signal at the road intersection in the road section to be optimized is adjusted; The phase difference of the signal is determined according to the ratio between the distance between the two and the speed of the traffic flow between the two. 如申請專利範圍第3項所述的道路交通優化方法,其中,所述在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,採用如下方式實現:針對所述待優化路段內至少一個道路交叉口,執行如下操作:在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用預先設置的交通訊號配時模型計算所述道路交叉口的平均延時時間,獲 得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號。 The road traffic optimization method according to claim 3, wherein, in the time period corresponding to the traffic flow condition, the traffic signal at the road intersection in the road section to be optimized is matched with the traffic flow condition The optimization control is implemented in the following manner: for at least one road intersection in the road section to be optimized, the following operations are performed: within the time period corresponding to the traffic flow condition, according to the cycle duration of the traffic signal at the road intersection and The effective green signal ratio is calculated by using the preset traffic signal timing model to calculate the average delay time of the road intersection, and obtains Obtain the corresponding cycle duration and the effective green signal ratio when the average delay time is the minimum value, and configure the traffic signal of the road intersection according to the obtained cycle duration and the effective green signal ratio. 如申請專利範圍第3項所述的道路交通優化方法,其中,所述在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,採用如下方式實現:在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號的相位進行調整;同一車流方向的相鄰兩個道路交叉口的交通訊號的相位差,根據二者之間的距離與二者之間的車流行駛速度的比值確定;以及,針對所述待優化路段內至少一個道路交叉口,執行如下操作:在所述車流狀況對應的時段內,根據所述道路交叉口的交通訊號的週期時長和有效綠信比,利用預先設置的交通訊號配時模型計算所述道路交叉口的平均延時時間,獲得所述平均延時時間為最小值時對應的週期時長和有效綠信比,並根據獲得的週期時長和有效綠信比配置所述道路交叉口的交通訊號。 The road traffic optimization method according to claim 3, wherein, in the time period corresponding to the traffic flow condition, the traffic signal at the road intersection in the road section to be optimized is matched with the traffic flow condition The optimization control is realized in the following ways: in the time period corresponding to the traffic flow condition, the phase of the traffic signal at the road intersection in the road section to be optimized is adjusted; The phase difference of the signal is determined according to the ratio between the distance between the two and the speed of the traffic flow between the two; Within the period of time, according to the cycle duration and the effective green signal ratio of the traffic signal at the road intersection, the average delay time of the road intersection is calculated by using the preset traffic signal timing model, and the average delay time is obtained as The minimum value is the corresponding cycle duration and the effective green signal ratio, and the traffic signal of the road intersection is configured according to the obtained cycle duration and the effective green signal ratio. 如申請專利範圍第10項所述的道路交通優化方法,其中,所述交通訊號配時模型所採用目標函數的約束條件包括下述至少一項: 所述道路交叉口各相位綠燈時間之和與週期損失求和等於週期時長,所述道路交叉口在各相位的有效綠信比大於或者等於最小綠燈時間與週期時長的比值;其中,所述最小綠燈時間根據所述道路交叉口各個相位當前實際綠燈時間確定。 The road traffic optimization method according to claim 10, wherein the constraints of the objective function adopted by the traffic signal timing model include at least one of the following: The sum of the green light time and the cycle loss of each phase of the road intersection is equal to the cycle duration, and the effective green signal ratio of each phase of the road intersection is greater than or equal to the ratio of the minimum green light time to the cycle duration; The minimum green light time is determined according to the current actual green light time of each phase of the road intersection. 如申請專利範圍第2項所述的道路交通優化方法,其中,所述待優化路段內的平均行駛速度,根據所述待優化路段內道路交叉口劃分成的各子路段車輛行駛速度的平均值確定。 The road traffic optimization method according to item 2 of the scope of the application, wherein the average driving speed in the road section to be optimized is based on the average value of the vehicle driving speed of each sub-section divided into road intersections in the road section to be optimized Sure. 如申請專利範圍第13項所述的道路交通優化方法,其中,所述速度標準差,根據所述待優化路段內道路交叉口劃分成的各子路段車輛行駛速度相對於所述平均行駛速度計算獲得的標準差確定。 The road traffic optimization method according to claim 13, wherein the speed standard deviation is calculated according to the vehicle driving speed of each sub-section divided into road intersections in the road section to be optimized relative to the average driving speed The standard deviation obtained is determined. 如申請專利範圍第14項所述的道路交通優化方法,其中,所述單位速度水準上的速度離散係數,根據所述速度標準差與所述平均行駛速度的比值確定。 The road traffic optimization method according to claim 14, wherein the speed dispersion coefficient at the unit speed level is determined according to the ratio of the speed standard deviation to the average travel speed. 如申請專利範圍第3項所述的道路交通優化方法,其中,所述道路交通優化方法係基於交通訊號配時模型實現,所述交通訊號配時模型之輸入係所述道路交通資訊,所述交通訊號配時模型之輸出係所述待優化路段內道路交 叉口的交通訊號的相位及其對應的時間資訊、所述待優化路段內道路交叉口的交通訊號的週期時長和有效綠信比、和/或所述待優化路段內的擁堵子路段及其對應的擁堵時段。 The road traffic optimization method according to claim 3, wherein the road traffic optimization method is implemented based on a traffic signal timing model, the input of the traffic signal timing model is the road traffic information, and the The output of the traffic signal timing model is the road traffic in the section to be optimized. the phase of the traffic signal at the intersection and its corresponding time information, the cycle duration and the effective green signal ratio of the traffic signal at the road intersection in the road section to be optimized, and/or the congested sub-sections in the road section to be optimized and its corresponding congestion period. 如申請專利範圍第1至16項任意一項所述的道路交通優化方法,其中,所述道路交通優化方法基於預先建立的道路交通優化平臺實現,所述道路交通優化平臺設置有用於獲取所述道路交通資訊的資料獲取介面,用於訪問以及輸出所述待優化路段的交通訊號優化策略的道路交通優化服務介面,和/或,用於上傳所述道路交通資訊的資料上傳介面;其中,所述交通訊號優化策略中包含所述待優化路段內各道路交叉口的交通訊號的相位,以及各相位對應的時間資訊。 The road traffic optimization method according to any one of claims 1 to 16 of the scope of the application, wherein the road traffic optimization method is implemented based on a pre-established road traffic optimization platform, and the road traffic optimization platform is configured to obtain the A data acquisition interface for road traffic information, a road traffic optimization service interface for accessing and outputting the traffic signal optimization strategy of the road section to be optimized, and/or a data uploading interface for uploading the road traffic information; The traffic signal optimization strategy includes phases of traffic signals at each road intersection in the road section to be optimized, and time information corresponding to each phase. 如申請專利範圍第17項所述的道路交通優化方法,其中,所述根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數步驟中的道路交通資訊,採用下述至少一種方式獲取:通過所述資料獲取介面從協力廠商地圖服務商獲取所述待優化路段的導航資料,所述導航資料中包含所述道路交通資訊;通過所述資料上傳介面接收所述待優化路段設置的交 通資料獲取設備上傳的道路交通採集資料,所述道路交通採集資料中包含所述道路交通資訊。 The road traffic optimization method according to claim 17, wherein, in the step of analyzing and obtaining the road condition parameters of the road segment to be optimized according to the obtained road traffic information of the road segment to be optimized, the following at least One way to obtain: obtain the navigation data of the road section to be optimized from a third-party map service provider through the data acquisition interface, and the navigation data includes the road traffic information; receive the road section to be optimized through the data upload interface set post The road traffic collection data uploaded by the data acquisition device, and the road traffic collection data includes the road traffic information. 如申請專利範圍第18項所述的道路交通優化方法,其中,所述道路交通優化平臺設置有交通訊號配置介面,所述道路交通優化平臺結合所述待優化路段設置的交通訊號燈對應的介面協議,通過所述交通訊號配置介面對所述待優化路段內各道路交叉***通訊號燈的交通訊號進行配置。 The road traffic optimization method according to claim 18, wherein the road traffic optimization platform is provided with a traffic signal configuration interface, and the road traffic optimization platform combines the interface corresponding to the traffic lights set on the road section to be optimized. protocol, and configure the traffic signals of the traffic lights of each road intersection in the road section to be optimized through the traffic signal configuration interface. 一種道路交通優化裝置,其包括:道路交通資訊分析單元,用於根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;車流狀況確定單元,用於根據所述路況參數確定所述待優化路段在不同時段的車流狀況;優化控制單元,用於在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制,以及針對所述待優化路段內道路交叉口劃分成的至少一個子路段,執行如下操作:根據所述子路段在各車流方向的車輛行駛速度,判斷所述子路段在各車流方向的車輛行駛速度是否小於預設臨限值,若是,將所述子路段判定為擁堵子路段,並對所述擁堵子路段相鄰道路交叉口的交通訊號進行優化控制。 A road traffic optimization device, comprising: a road traffic information analysis unit for analyzing and obtaining road condition parameters of the road section to be optimized according to the acquired road traffic information of the road section to be optimized; Determine the traffic flow conditions of the road section to be optimized in different time periods; the optimization control unit is configured to match the traffic signals of the road intersections in the road section to be optimized with the traffic flow conditions within the time period corresponding to the traffic flow conditions and perform the following operations for at least one sub-section divided into a road intersection in the section to be optimized: according to the vehicle speed of the sub-section in each traffic flow direction, determine that the sub-section is in each traffic flow direction Whether the speed of the vehicle is less than the preset threshold value, if so, the sub-road segment is determined as a congested sub-road segment, and the traffic signals at the adjacent road intersections of the congested sub-road segment are optimally controlled. 一種電子設備,其包括:記憶體,以及處理器;所述記憶體用於儲存電腦可執行指令,所述處理器用於執行所述電腦可執行指令:根據獲取的待優化路段的道路交通資訊分析獲得所述待優化路段的路況參數;根據所述路況參數確定所述待優化路段在不同時段的車流狀況;在所述車流狀況對應的時段內,對所述待優化路段內道路交叉口的交通訊號進行與所述車流狀況相匹配的優化控制;針對所述待優化路段內道路交叉口劃分成的至少一個子路段,執行如下操作:根據所述子路段在各車流方向的車輛行駛速度,判斷所述子路段在各車流方向的車輛行駛速度是否小於預設臨限值,若是,將所述子路段判定為擁堵子路段,並對所述擁堵子路段相鄰道路交叉口的交通訊號進行優化控制。 An electronic device, comprising: a memory, and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions: according to the obtained road traffic information analysis of the road section to be optimized Obtain the road condition parameters of the road section to be optimized; determine the traffic flow conditions of the road section to be optimized in different time periods according to the road condition parameters; The signal carries out optimization control that matches the traffic flow conditions; for at least one sub-section divided into a road intersection in the section to be optimized, the following operations are performed: according to the vehicle speed of the sub-section in each traffic flow direction, determine Whether the vehicle speed of the sub-road segment in each traffic flow direction is less than the preset threshold value, if so, determine the sub-road segment as a congested sub-road segment, and optimize the traffic signals at the adjacent road intersections of the congested sub-road segment control.
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