CN106652499B - The implementation method of special car priority system with reservation function - Google Patents
The implementation method of special car priority system with reservation function Download PDFInfo
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- CN106652499B CN106652499B CN201610889261.2A CN201610889261A CN106652499B CN 106652499 B CN106652499 B CN 106652499B CN 201610889261 A CN201610889261 A CN 201610889261A CN 106652499 B CN106652499 B CN 106652499B
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
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Abstract
The invention discloses special car priority pass control systems and implementation method with reservation function, thought based on bus or train route collaboration, increase wireless receiving module in crossing signals pusher side, car-mounted terminal and wireless sending module are placed on special car, by planning travel route in advance on car-mounted terminal, fleet's parameter and clearance distance are set, when special car reaches crossing communication distance, Vehicle Speed is calculated according to latitude and longitude information, to calculate the time needed up to distance of letting pass, and inform semaphore, by instant with semaphore, multiple communication reservation improves the percent of pass of special car priority pass.The system saves manpower without planning by center background by the preparatory planning path of car-mounted terminal；Fully automatic operation after planning ensures special car priority pass in such a way that signal controls, is not necessarily to any intervention, ensures safety while accomplishing to protect unimpeded.
Description
Technical field
Present invention relates particularly to intersection special car priority pass control systems and realization with reservation function
Method belongs to technical field of traffic signal control.
Background technique
The special cars such as the vehicle of ambulance, fire fighting truck and execution guard duty, executing for task is concerning people group
Many securities of the lives and property.On the basis of ensureing its traffic efficiency, reliability and safety, reduce to other convention traffic streams
Adverse effect be of great significance to.
Traditional signal priority task is needed using a large amount of police strength, and traffic police is arranged in the friendship that vehicle needs to pass through in advance
Prong, by the cooperation of crossing traffic police and command centre staff, the working condition of artificial adjustment signal machine, thus realization pair
The prior-release of special car.The disadvantage is that: to expend a large amount of human resources, and the accurate letter due to lacking vehicle location
Breath, prior-release scheme executes and the opportunity bad accurate assurance of revocation, may cause unfavorable shadow to other convention traffic streams
It rings.
In view of the above-mentioned problems, have developed some can provide the preferentially control by function for special car
System.Such as number of patent application 201410215173.5, the patent of entitled " a kind of road special car priority system " should
Patent is mounted on road using probe and RFID label chip, RFID label chip, and probe is installed on vehicle, when probe is visited
When measuring the information of RFID label chip, road information is passed into command centre, which is controlled by command centre
Lamp is let pass.The disadvantage is that RFID label chip needs divided lane to be arranged, RFID label chip usage amount is very big, cause hardware at
The cost is relatively high with installation maintenance for this；In addition, the clearance route of the system be by being issued to semaphore after the unified planning of backstage,
Special car voluntarily cannot be planned and be changed, and not have interaction performance.
Number of patent application 201510970311.5, a kind of entitled " traffic signals control preferentially gone together for special car
Method processed ".The patent also includes car-mounted device and reception device, and the GPS position information of vehicle is obtained using car-mounted device, is passed through
ZigBee and reception device communicate, and then by the clearance scheme of semaphore control intersection.The disadvantage is that being led to using ZigBee
News, communication distance is closer, if increasing communication distance needs networking, increases hardware cost；Plan is controlled using the signal of preemptive type
Slightly, large effect can be generated to the wagon flow in other directions.
Number of patent application 201510026164.6, entitled " the emergency vehicle priority pass new method based on bus or train route collaboration
And system " patent, which includes roadside unit and on board unit, and on board unit is used to information of vehicles feeding back to trackside list
Member, and receive speed guidance information；Roadside unit is generated according to the actual conditions of current demand signal phase and access mouth queuing vehicle
Corresponding clearance scheme.From the aspects of device, which uses PC machine as on board unit, and occupied space is big, use cost
It is higher.For implementation method, which does not have reservation function, when until vehicle and semaphore apart from it is close when start to send
Signal, semaphore also need the reaction time, simultaneously because public frequency band is used to communicate, there are interference signals, be easy to cause
Prior-release failure；And the calculating process of the guidance of its speed and traffic lights timing is complicated, it is necessary to be completed by semaphore, method is not
It is simple and easy.
Summary of the invention
Compared with aforementioned patent applications, the present invention uses new technical solution:
1. car-mounted terminal uses the tablet computer or smart mobile phone etc. for being equipped with this system App, low in cost, easy to operate
It is easy；
2. working as special car by planning travel route, setting fleet's parameter and clearance distance in advance on car-mounted terminal
When reaching crossing communication distance, Vehicle Speed is calculated according to latitude and longitude information, so that calculating needs up to distance of letting pass
The time wanted, and inform semaphore, the logical of special car priority pass is improved by the communication reservation with semaphore immediately, multiple
Cross rate.
Special car priority pass function for Most current signal controlling machine is by having planned route granting from the background
To semaphore, special car voluntarily cannot be planned and be changed, and not have interaction performance, while causing to other convention traffic streams
The problem of quite adversely affecting, technical solution of the present invention provides the intersection special car with reservation function and preferentially leads to
Row control system.
To achieve the above object, the invention provides the following technical scheme:
Intersection special car priority pass control system with reservation function is by crossing side unit and special vehicle
Side unit composition.Crossing side unit is crossing receiving module, including antenna and communication module, antenna are placed in intersection annunciator
On external machine top, communication module is connected by RS232 with semaphore master control borad, can be placed in signal chassis.Signal control
Machine is connected by control signal wire with traffic lights, is connected by optical fiber with central platform.Special car side unit includes vehicle
Carry sending module and car-mounted terminal, be placed in special car, vehicle-mounted sending module by GPS/ Beidou bimodulus locating module and
Communication module composition.Vehicle-mounted sending module and crossing receiving module establish instant messaging by ISM band, by WiFi with it is vehicle-mounted
Terminal is communicated, and car-mounted terminal is generally the tablet computer or smart mobile phone for being equipped with this system App.
It is realized using the intersection special car priority pass control system with reservation function, including following step
It is rapid:
Step 1: preserving current city map, each in the car-mounted terminal (tablet computer, smart phone etc.) of special car
Connection relationship etc. between a semaphore ID number and latitude and longitude information, each semaphore and ambient signal machine.
Step 2: the driving path of special car being planned in advance on the map of car-mounted terminal, sets clearance distance
And the Vehicle length and the parameters such as vehicle spacing of fleet calculate vehicle according to the parameters such as the Vehicle length of fleet and vehicle spacing
It lets pass the time kept.
Step 3: the real-time longitude and latitude of special car is obtained according to the GPS/ Beidou bimodulus locating module in vehicle-mounted sending module
Information is spent, calculates vehicle at a distance from next crossing.A, B two o'clock distance are (herein it is believed that A point is next crossing signals on the earth
Machine, B point be special car) calculation formula are as follows: distance d=arc cos (sin (north latitude A) × sin (north latitude B)+cos (north latitude
A) × cos (north latitude B) × cos (two places AB difference of longitude)) × earth mean radius, while calculating Vehicle Speed.
Step 4: judge vehicle at a distance from next crossing whether less than 2000 meters (vehicle-mounted sending module and crossing receive moulds
The communication distance of block), if otherwise returning to previous step, if carrying out in next step.
Step 5: judging whether to have passed through the crossing, if then return step 3, if otherwise carrying out in next step；
Step 6: according to the Vehicle Speed of acquisition and the clearance distance of setting, calculate reach that distance of letting pass needs when
Between and need let pass direction, light color；
Step 7: vehicle-mounted sending module sends request by data, is back to step 5 in special car side and executes；
Step 8: the receiving module in crossing side receives the request signal that vehicle-mounted sending module is sent；
Step 9: judging whether the delay clearance time has arrived, if otherwise waiting herein, if carrying out in next step；
Step 10: whether the remaining time for judging that vehicle clearance is kept is greater than zero, if indicating the fleet of special car also
It not over crossing, carries out in next step, indicates that fleet has passed through the crossing if not, skip to step 13；
Step 11: the information obtained from vehicle-mounted sending module is sent to letter by RS-232 serial ports by crossing receiving module
Number machine (can be the semaphore of any producer, as long as interface and protocol open), traffic signaling equipment generate priority pass plan
Slightly it is used for traffic lights；
Step 12: traffic lights execute special car clearance processing, are early broken and the extended mode of green light using red light, and
Setting is yellow to dodge buffer time, guarantees traffic safety；
Step 13: the special car priority pass task at this crossing terminates, and traffic lights restore normal clearance phase.
Beneficial effect
(1) present invention uses GPS/ Beidou bimodulus locating module, improves the positioning accuracy to special car, can be accurate
The opportunity that prior-release scheme is executed and cancelled is held, the influence to other direction traffic flows is reduced；
(2) car-mounted terminal is used as using tablet computer or smart mobile phone, when use only needs to install dedicated APP, and occupancy is vehicle-mounted
Space is few, and learning cost is small, does not need to increase additional processing and display module, reduces use cost；
(3) present invention has reservation function, when special car reaches crossing communication distance, according to the vehicle driving of acquisition
Velocity information and the clearance distance of setting calculate and reach the time that distance of letting pass needs, and inform semaphore, by with signal
The communication reservation of machine immediately, multiple improves the percent of pass of special car priority pass, avoids because communication obstruction leads to semaphore
The case where data cannot be received in time, clearance scheme can not be executed.
Detailed description of the invention
Relationship block diagram between each module of Fig. 1 present invention.
Fig. 2 process for using figure of the present invention.
An example car-mounted terminal interface Fig. 3 of the invention.
Specific embodiment
The technical program is illustrated below in conjunction with attached drawing.
Fig. 1 is the present invention with the connection relationship between each module of special car priority pass control system of reservation function
Block diagram.Special car side unit includes vehicle-mounted sending module and car-mounted terminal, and car-mounted terminal is generally equipped with this system App's
Tablet computer or smart mobile phone.It is placed in special car, vehicle-mounted sending module is by GPS/ Beidou bimodulus locating module, antenna
It is formed with communication module.Vehicle-mounted sending module establishes instant messaging by ISM band with crossing receiving module, passes through WiFi and vehicle
Mounted terminal is communicated, and crossing side unit is crossing receiving module, including antenna and communication module, antenna are placed in crossing signals
Outside machine on machine top, communication module is connected by RS232 with semaphore master control borad, can be placed in signal chassis.Signal control
Machine processed is connected by control signal wire with traffic lights, is connected by optical fiber with central platform.
Fig. 2 is the work flow diagram for the special car priority system implementation method that the present invention has reservation function, tool
Body is described as follows:
Step 1: preserving current city map, each in the car-mounted terminal (tablet computer, smart phone etc.) of special car
Connection relationship etc. between a semaphore ID number and latitude and longitude information, each semaphore and ambient signal machine.
Step 2: the driving path of special car being planned in advance on the map of car-mounted terminal, sets clearance distance
And the Vehicle length and the parameters such as vehicle spacing of fleet calculate vehicle according to the parameters such as the Vehicle length of fleet and vehicle spacing
It lets pass the time kept.
Step 3: the real-time longitude and latitude of special car is obtained according to the GPS/ Beidou bimodulus locating module in vehicle-mounted sending module
Information is spent, calculates vehicle at a distance from next crossing.A, B two o'clock distance are (herein it is believed that A point is next crossing signals on the earth
Machine, B point be special car) calculation formula are as follows: distance d=arc cos (sin (north latitude A) × sin (north latitude B)+cos (north latitude
A) × cos (north latitude B) × cos (two places AB difference of longitude)) × earth mean radius, while calculating Vehicle Speed.
Step 4: judge vehicle at a distance from next crossing whether less than 2000 meters (vehicle-mounted sending module and crossing receive moulds
The communication distance of block), if otherwise returning to previous step, if carrying out in next step.
Step 5: judging whether to have passed through the crossing, if then return step 3, if otherwise carrying out in next step；
Step 6: according to the Vehicle Speed of acquisition and the clearance distance of setting, calculate reach that distance of letting pass needs when
Between and need let pass direction, light color；
Step 7: vehicle-mounted sending module sends request by data, is back to step 5 trip in special car side；
Step 8: the receiving module in crossing side receives the request signal that vehicle-mounted sending module is sent；
Step 9: judging whether the delay clearance time has arrived, if otherwise waiting herein, if carrying out in next step；
Step 10: whether the remaining time for judging that vehicle clearance is kept is greater than zero, if indicating the fleet of special car also
It not over crossing, carries out in next step, indicates that fleet has passed through the crossing if not, skip to step 13；
Step 11: the information obtained from vehicle-mounted sending module is sent to letter by RS-232 serial ports by crossing receiving module
Number machine (can be the semaphore of any producer, as long as interface and protocol open), traffic signaling equipment generate priority pass plan
Slightly it is used for traffic lights；
Step 12: traffic lights execute special car clearance processing, are early broken and the extended mode of green light using red light, and
Setting is yellow to dodge buffer time, guarantees traffic safety；
Step 13: the special car priority pass task at this crossing terminates, and traffic lights restore normal clearance phase.
Fig. 3 is designed an example car-mounted terminal interface.It (a) is entitled " the vehicle mounted traffic prior-release system of main interface
System ", including the secondary interfaces such as " project management ", " parameter setting ", " crossing map ", " password modification ", " about ", " exiting ",
It can be shown below interface and be the most recently used Scenario Name, such as " Zhujiang River road North and South direction "；(b) for from (a) " main interface " into
" project management " interface entered can be checked and be modified to the scheme run, and can add new scheme, some is chosen
Scheme back can be run；(c) for from " parameter setting " interface that (a) " main interface " enters, including " fleet's parameter setting " and
" long-range control setting ", " fleet's parameter setting " settable Vehicle length and vehicle spacing, set by " long-range control setting "
For order clearance distance, the time for reaching crossing clearance distance can be calculated by these parameters, carries out reservation clearance；(d) for from
(a) " crossing map " interface that " main interface " enters, all crossings for being mounted with traffic lights have signal lamp icon to show, lead to
Driving path can be planned by crossing crossing map.
Claims (1)
1. the implementation method of the intersection special car priority system with reservation function, the system comprises crossings
Side unit and special car side unit, the crossing side unit are crossing receiving module, including antenna and communication module, antenna are put
It is placed in outside intersection annunciator on machine top, communication module is connected by RS232 with semaphore master control borad, and signal chassis is placed on
It is interior；Semaphore is connected by control signal wire with traffic lights, is connected by optical fiber with central platform；The special car side
Unit includes vehicle-mounted sending module and car-mounted terminal, is placed in special car, vehicle-mounted sending module and crossing receiving module
Instant messaging is established by ISM band, is communicated by WiFi and car-mounted terminal, car-mounted terminal is to be equipped with this system App
Tablet computer or smart mobile phone；The vehicle-mounted sending module is made of GPS/ Beidou bimodulus locating module and communication module；Its
It is characterized in that, steps are as follows for the implementation method:
Step 1: in the car-mounted terminal of special car, preserve current city map, each semaphore ID number and latitude and longitude information,
Connection relationship between each semaphore and ambient signal machine；
Step 2: the driving path of special car being planned in advance on the map of car-mounted terminal, setting clearance distance, vehicle
The Vehicle length and vehicle spacing parameter of team calculate vehicle clearance and keep according to the Vehicle length of fleet and vehicle spacing parameter
Time；
Step 3: being believed according to the real-time longitude and latitude that the GPS/ Beidou bimodulus locating module in vehicle-mounted sending module obtains special car
Breath calculates vehicle at a distance from next crossing；
Step 4: judge vehicle at a distance from next crossing whether less than 2000 meters, if otherwise returning to previous step, if carrying out
In next step；
Step 5: judging whether to have passed through the crossing, if then return step 3, if otherwise carrying out in next step；
Step 6: according to the Vehicle Speed of acquisition and the clearance distance of setting, calculate reach let pass time that distance needs and
The direction that needs to let pass, light color；
Step 7: vehicle-mounted sending module sends request by data, is back to step 5 in special car side and executes；
Step 8: the crossing receiving module in crossing side receives the request signal that vehicle-mounted sending module is sent；
Step 9: whether the delay clearance time has arrived, if otherwise waiting herein, if carrying out in next step；
Step 10: whether the remaining time for judging that vehicle clearance is kept is greater than zero, if indicating the fleet of special car not yet
It by crossing, carries out in next step, indicates that fleet has passed through the crossing if not, skip to step 13；
Step 11: the information obtained from vehicle-mounted sending module is sent to signal by RS-232 serial ports by crossing receiving module
Machine；
Step 12: traffic lights execute special car clearance processing, are early broken and the extended mode of green light using red light, and be arranged
Huang dodges buffer time, guarantees traffic safety；
Step 13: the special car priority pass task at this crossing terminates, and traffic lights restore normal clearance phase.
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| CN201610889261.2A CN106652499B (en) | 2016-10-11 | 2016-10-11 | The implementation method of special car priority system with reservation function |
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| CN201610889261.2A CN106652499B (en) | 2016-10-11 | 2016-10-11 | The implementation method of special car priority system with reservation function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107016863A (en) * | 2017-04-13 | 2017-08-04 | 南京多伦科技股份有限公司 | A kind of real-time automatic special duty's control system and method based on mobile terminal technology |
| CN107591008A (en) * | 2017-09-18 | 2018-01-16 | 同济大学 | A kind of distributed traffic control system based on roadside device |
| CN110401685A (en) * | 2018-04-25 | 2019-11-01 | 郑州宇通客车股份有限公司 | A kind of intelligence control cloud platform of two visitor of automatic Pilot, one danger vehicle |
| CN109118761B (en) * | 2018-08-21 | 2021-11-16 | 浙大网新***工程有限公司 | Intelligent traffic solution method based on artificial intelligence and management system thereof |
| CN111369817A (en) * | 2018-12-26 | 2020-07-03 | 北京嘀嘀无限科技发展有限公司 | Passage control method, device and system |
| CN111951569B (en) * | 2019-05-16 | 2022-04-05 | 大唐移动通信设备有限公司 | Green wave passing method and device |
| CN110517513B (en) * | 2019-08-22 | 2021-10-26 | 上海电气集团智能交通科技有限公司 | Dynamic road right system and control method thereof |
| CN110880239A (en) * | 2019-12-04 | 2020-03-13 | 上海宝康电子控制工程有限公司 | Centralized special vehicle priority system based on satellite positioning and response control method |
| CN111182064A (en) * | 2019-12-30 | 2020-05-19 | 湖南湘江智能科技创新中心有限公司 | Special vehicle priority passing method based on vehicle road cloud cooperation |
| CN111127914B (en) * | 2020-02-26 | 2021-01-01 | 青岛海信网络科技股份有限公司 | Method and device based on signal automatic release mechanism |
| CN111311934B (en) * | 2020-03-23 | 2022-03-18 | 许昌泛网信通科技有限公司 | Timing method of VIP vehicle non-blocking traffic control system |
| CN112418464B (en) * | 2020-09-23 | 2024-05-31 | 深圳市金溢科技股份有限公司 | Highway service area reservation method, RSU, OBU, platform and system |
| CN112185127A (en) * | 2020-09-27 | 2021-01-05 | 安徽达尔智能控制***股份有限公司 | Special vehicle one-way passing system and method based on vehicle-road cooperation |
| CN112967505A (en) * | 2021-02-25 | 2021-06-15 | 上海宝康电子控制工程有限公司 | Wireless communication equipment for realizing automatic planning of guard route and application thereof |
| CN115273504B (en) * | 2022-07-19 | 2024-01-02 | 江苏航天大为科技股份有限公司 | Vehicle passing signal control method, system and storage medium based on Internet of vehicles |
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| JP5447040B2 (en) * | 2010-03-17 | 2014-03-19 | 住友電気工業株式会社 | Traffic signal control system, traffic signal control apparatus, and traffic signal control method |
| CN102436752A (en) * | 2011-09-29 | 2012-05-02 | 青岛海信网络科技股份有限公司 | Prior control system and method for road signals |
| CN102521993B (en) * | 2011-12-23 | 2014-04-30 | 北京易华录信息技术股份有限公司 | Specific vehicle crossing signal priority control system and method thereof |
| CN103400505A (en) * | 2013-08-12 | 2013-11-20 | 安徽科力信息产业有限责任公司 | Zigbee-based bus signal priority control system and control method thereof |
| CN105489029A (en) * | 2015-12-21 | 2016-04-13 | 安徽科力信息产业有限责任公司 | Traffic signal machine control method for priority passage of extraordinary vehicle |
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