CN116449371A - A monitoring radar system for wisdom traffic - Google Patents
A monitoring radar system for wisdom traffic Download PDFInfo
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- CN116449371A CN116449371A CN202310378103.0A CN202310378103A CN116449371A CN 116449371 A CN116449371 A CN 116449371A CN 202310378103 A CN202310378103 A CN 202310378103A CN 116449371 A CN116449371 A CN 116449371A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 206010039203 Road traffic accident Diseases 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 6
- 238000007405 data analysis Methods 0.000 abstract description 5
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000007726 management method Methods 0.000 description 5
- 241001465754 Metazoa Species 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 241000256626 Pterygota <winged insects> Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000035559 beat frequency Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
- G08G1/0133—Traffic data processing for classifying traffic situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
- G01S13/92—Radar or analogous systems specially adapted for specific applications for traffic control for velocity measurement
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Signal Processing (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention provides a monitoring radar system for intelligent traffic, which comprises: the monitoring radar is arranged on a highway roadside vertical rod or a cross rod and is used for monitoring the information of the going vehicles so as to acquire all vehicle target information in a monitoring range and sending the vehicle target information to the transmission equipment; the transmission equipment is used for sending the vehicle target information to the cloud platform; and the cloud platform is used for analyzing big data of the vehicle target information. The system can collect the running condition data of the expressway and the vehicle in real time, and send signals to the expressway traffic guidance cloud platform for background big data analysis through equipment such as an optical transceiver and the like, so that real-time early warning of emergencies is realized, traffic guidance information is issued in time, traffic accidents are prevented, and therefore the overall management and control capacity and emergency response speed of road traffic are greatly improved.
Description
Technical Field
The invention belongs to the field of intelligent traffic, and particularly relates to a monitoring radar system for intelligent traffic.
Background
With the development of China society and the improvement of life demands of people, the number of motor vehicles is increased year by year, and the construction demands of expressways and supporting facilities are obviously increased. The contradiction between high speed and safety is increasingly remarkable, and unexpected sudden dangerous situations such as fog, sudden car accidents, intrusion of people and animals, adverse driving illegal stop and the like are extremely easy to cause serious accidents of chain collision, thus being the biggest hidden trouble of highway traffic safety. How to timely, accurately and completely collect and forecast various information of the road ahead, timely locate accidents or blocked areas and issue corresponding guiding and rescue information in real time is a major difficulty to be solved for highway traffic safety.
The highway traffic safety monitoring mainly depends on a video monitoring system, and huge manpower and financial resources are input, but the existing video analysis technology is severely restricted by illumination, weather, winged insects, lens cleaning and the like, so that the effective utilization rate of the system is very low. Especially, for burst accidents such as mist, intrusion of people and animals, reverse traffic illegal stop and the like and possibly caused interlinked accidents, the early warning capability is almost zero, and a plurality of serious traffic accidents and casualties are caused. The following is a performance comparison of the traditional video monitoring system and the traditional speed measuring radar:
from the table, the whole control capability and the emergency response speed of road traffic are lower due to the use of the traditional video monitoring system or the speed measuring radar.
Disclosure of Invention
The embodiment of the application provides a monitoring radar system for wisdom traffic, can in time release traffic guidance information, prevent traffic accident to promote the whole management and control ability and the emergent response speed of road traffic greatly.
The embodiment of the application provides a monitoring radar system for intelligent traffic, which comprises:
the monitoring radar is arranged on a highway roadside vertical rod or a cross rod and is used for monitoring the information of the going vehicles so as to acquire all vehicle target information in a monitoring range and sending the vehicle target information to the transmission equipment;
the transmission equipment is used for sending the vehicle target information to the cloud platform;
and the cloud platform is used for analyzing big data of the vehicle target information.
The cloud platform is used for calculating according to the distance and angle information of the vehicle target entering the radar detection area to obtain lane information of the vehicle.
The cloud platform is used for calculating according to signal intensity characteristics of targets of different vehicle types entering a radar detection area so as to distinguish vehicle type information, wherein the vehicle type information comprises large vehicles and small vehicles.
The cloud platform is used for calculating according to real-time distance of a target vehicle, GPS coordinates of a radar and direction information of a road to obtain GPS coordinate information of the vehicle, and the GPS coordinate information comprises an X coordinate and a Y coordinate.
The monitoring radar adopts a reverse installation mode to monitor the forward-going vehicle.
The vehicle target information comprises an ID, two-dimensional coordinates, a vehicle speed, a highest speed, a lowest speed, a total number of targets, an average speed and a current picture target number.
The monitoring radar is a multi-target wide-area monitoring radar.
The transmission equipment comprises an optical transceiver.
The cloud platform is a monitoring command platform.
The cloud platform is used for displaying simulation animation of the vehicle target in real time.
The monitoring radar system for intelligent traffic has the following beneficial effects:
the application is used for wisdom traffic's monitoring radar system, includes: the monitoring radar is arranged on a highway roadside vertical rod or a cross rod and is used for monitoring the information of the going vehicles so as to acquire all vehicle target information in a monitoring range and sending the vehicle target information to the transmission equipment; the transmission equipment is used for sending the vehicle target information to the cloud platform; and the cloud platform is used for analyzing big data of the vehicle target information. The traffic guidance information can be issued in time, traffic accidents are prevented, and therefore the overall management and control capacity and emergency response speed of road traffic are greatly improved.
Drawings
FIG. 1 is a schematic diagram of a radar system for intelligent traffic according to an embodiment of the present application;
FIG. 2 is a schematic view of a surveillance radar installation (mounted on a mast arm or gantry);
fig. 3 is a schematic view of a surveillance radar installation (mounted on a roadside post).
Detailed Description
The present application is further described below with reference to the drawings and examples.
The following description provides various embodiments of the invention that may be substituted or combined between different embodiments, and thus this application is also intended to encompass all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then the present application should also be considered to include embodiments that include one or more of all other possible combinations of features A, B, C, D, although such an embodiment may not be explicitly recited in the following.
As shown in fig. 1, the monitoring radar system for intelligent traffic of the present application includes: the monitoring radar 10 is arranged on a highway roadside vertical rod or a cross rod and is used for monitoring the information of the going vehicles so as to acquire all vehicle target information in a monitoring range and transmitting the vehicle target information to the transmission equipment; a transmission device 11 for transmitting the vehicle target information to the cloud platform; the cloud platform 12 is used for carrying out big data analysis on the vehicle target information. The transmission device 11 comprises, for example, an optical transceiver. The cloud platform 12 is, for example, a supervisory command platform. The surveillance radar 10 is a multi-target wide area surveillance radar.
The cloud platform 12 is used for calculating according to the distance and angle information of a vehicle target entering a radar detection area, and obtaining lane information of the vehicle. The cloud platform 12 is further used for calculating according to the signal intensity characteristics of different vehicle type targets entering the radar detection area so as to distinguish vehicle type information, wherein the vehicle type information comprises large vehicles and small vehicles. The cloud platform 12 is further configured to calculate, according to the real-time distance of the target vehicle, the GPS coordinates of the radar, and the direction information of the road, and obtain the GPS coordinate information of the vehicle, where the GPS coordinate information includes an X coordinate and a Y coordinate.
The application is used for monitoring radar system of wisdom traffic mainly including front end radar sensor, optical transceiver, cloud platform (monitoring center) etc.. The system can collect expressway and vehicle running condition data in real time, sends signals to the expressway traffic guidance cloud platform through equipment such as an optical transceiver to carry out background big data analysis, achieves real-time early warning of emergencies, timely issues traffic guidance information, prevents traffic accidents, greatly improves the overall control capacity and emergency response speed of road traffic, and solves the problems of low effective utilization rate and low early warning capacity of a traditional video monitoring system and a traditional speed measuring radar. The method comprises the following specific steps:
(1) As shown in fig. 2-3, a highway large scene radar is installed on a highway roadside vertical rod or a transverse rod, and forward-going vehicle information is monitored to acquire all vehicle target information in a monitoring range;
(2) As shown in fig. 1, the radar transmits all the acquired target information to a monitoring command platform in real time through equipment such as a network cable, an optical transceiver and the like;
(3) The monitoring command platform establishes an interface with the intelligent traffic multi-target wide area monitoring radar system for dynamic display of traffic conditions, sudden dangerous situation early warning, dispatching command reference and the like.
The intelligent traffic multi-target wide area monitoring radar system can perform first time early warning of sudden dangerous situations, the reaction time was 2s. The application can also carry out 7x24 hours continuous monitoring, can monitor 256 pieces at most vehicle target information simultaneously, can monitor 1150m furthest, and this application system can not receive environmental disturbance moreover, can all weather, need not the illumination work, can unmanned on duty. The intelligent traffic multi-target wide-area monitoring radar system can monitor information such as distance, speed, coordinates, density and flow of a vehicle target, can perform AI learning and multidimensional structured and unstructured big data analysis, and provides intelligent decision-making service for traffic management, road planning and the like.
In the present application, the vehicle target information includes vehicle target information within 1150 meter range including ID, two-dimensional coordinates, vehicle speed, highest speed, lowest speed, total number of targets (traffic flow), average speed, current screen target number, and the like. The cloud platform is also used for displaying simulated animation of the vehicle target in real time.
The system can calculate according to the distance and angle information of the vehicle target entering the radar detection area, and accurately position the lane information of the vehicle. The system can calculate according to the signal intensity characteristics of targets of different vehicle types entering the radar detection area, accurately distinguish vehicle type information, and comprises a large vehicle and a small vehicle. The system can calculate according to the real-time distance of the target vehicle, the GPS coordinates of the radar, the direction of the road and other information, accurately position the GPS coordinate information of the vehicle, including X coordinates and Y coordinates, and accurately position 6 positions after decimal points. In this application, the radar adopts reverse installation mode, monitors the vehicle that goes to, and the radar is located in a flexible way, can install at highway current mast arm, portal frame or road side stand.
The monitoring radar in this application includes: the device comprises a modulation signal generator, a power amplification module, a transmitting antenna, a receiving antenna, a low noise amplifier, a mixer, a filtering amplification module and a digital signal processor; the modulation signal generator is used for continuously generating frequency modulation signals in a preset frequency range to form frequency modulation continuous waves; one end of the power amplification module is connected with the modulation signal generator, the other end of the power amplification module is connected with the transmitting antenna, the power amplification is carried out on the modulation signal, and the amplified signal is transmitted through the transmitting antenna; the receiving antenna is connected with the low noise amplifier and is used for receiving the reflected signal of the measuring target, and transmitting the reflected signal to a low noise amplifier; the low noise amplifier sends the signal to the mixer; the mixer is respectively connected with the modulation signal generator and the filtering amplification module and is used for mixing the feedback signal and the frequency modulation signal so as to obtain a difference frequency signal of the feedback signal and the frequency modulation signal; the digital signal processor is used for analyzing the difference frequency signal to acquire the driving information of the vehicle on the expressway.
When the monitoring radar works, the modulation signal generator generates a frequency modulation signal f+Deltaf 1 with a certain modulation rule, a frequency modulation continuous wave is formed, and the transmitting antenna radiates the frequency modulation signal to space. When the transmitting signal meets the target to be detected, a part of energy is reflected back and is received by the receiving antenna to form a feedback signal, the receiving antenna receives the feedback signal of the target, and the frequency of the feedback signal is f+Deltaf1. In the period that the electromagnetic wave passes through the antenna and the target, the local oscillation signal, namely the frequency modulation signal, becomes f+Δf2 according to the modulation rule after the time Deltat passes, the feedback signal is mixed with the local oscillation signal from the modulation signal generator, and an intermediate frequency signal, namely a beat signal or a beat frequency signal, is obtained at the output end of the mixer. The frequency of the difference signal contains information about the target distance and speed. I.e. difference frequency signals 2f+ [ delta ] f1+ [ delta ] f2 and [ delta ] f 1-delta ] f2, wherein [ delta ] f 1-delta ] f2 carry the distance and speed information of the target. And analyzing and processing the difference frequency signal to obtain relevant information such as the target distance. The monitoring radar in the application can monitor at most 256 vehicle target information simultaneously, realizes the monitoring of long-distance multiple targets, and reduces the difficulty and cost of radar installation on the expressway.
The invention is mainly applied to a highway traffic management system and comprises a front-end radar sensor, an optical transceiver, a cloud platform (monitoring center) and the like. The system can collect the running condition data of the expressway and the vehicle in real time, and send signals to the expressway traffic guidance cloud platform for background big data analysis through equipment such as an optical transceiver and the like, so that real-time early warning of emergencies is realized, traffic guidance information is issued in time, traffic accidents are prevented, and therefore the overall management and control capacity and emergency response speed of road traffic are greatly improved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A surveillance radar system for intelligent traffic, comprising:
the monitoring radar is arranged on a highway roadside vertical rod or a cross rod and is used for monitoring the information of the going vehicles so as to acquire all vehicle target information in a monitoring range and sending the vehicle target information to the transmission equipment;
the transmission equipment is used for sending the vehicle target information to the cloud platform;
and the cloud platform is used for analyzing big data of the vehicle target information.
2. The radar system for intelligent traffic according to claim 1, wherein the cloud platform is configured to calculate, according to the distance and angle information of the vehicle target entering the radar detection area, lane information where the vehicle is located.
3. The surveillance radar system for intelligent traffic according to claim 1 or 2, wherein the cloud platform is configured to calculate according to signal intensity characteristics of different vehicle type targets entering the radar detection area to distinguish vehicle type information, the vehicle type information including a large vehicle and a small vehicle.
4. The radar system for intelligent traffic according to claim 1 or 2, wherein the cloud platform is configured to calculate, according to a real-time distance of a target vehicle, a GPS coordinate of a radar, and direction information of a road, to obtain GPS coordinate information of the vehicle, the GPS coordinate information including an X coordinate and a Y coordinate.
5. The surveillance radar system for intelligent traffic according to claim 1 or 2, wherein the surveillance radar is installed in a reverse direction to detect the moving vehicles.
6. The surveillance radar system for intelligent traffic according to claim 1 or 2, wherein the vehicle target information includes ID, two-dimensional coordinates, vehicle speed, highest speed, lowest speed, total number of targets, average speed, current screen target number.
7. The surveillance radar system for intelligent traffic according to claim 1 or 2, characterized in that the surveillance radar is a multi-target wide area surveillance radar.
8. The surveillance radar system for intelligent traffic according to claim 1 or 2, characterized in that the transmission device comprises an optical transceiver.
9. The surveillance radar system for intelligent traffic according to claim 1 or 2, characterized in that the cloud platform is a surveillance command platform.
10. The surveillance radar system for intelligent transportation according to claim 1 or 2, wherein the cloud platform is adapted to display simulated animation of a vehicle target in real time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310378103.0A CN116449371A (en) | 2023-04-11 | 2023-04-11 | A monitoring radar system for wisdom traffic |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310378103.0A CN116449371A (en) | 2023-04-11 | 2023-04-11 | A monitoring radar system for wisdom traffic |
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| CN116449371A true CN116449371A (en) | 2023-07-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116863715A (en) * | 2023-08-24 | 2023-10-10 | 北京首科丰汇科技有限公司 | Intelligent high-speed state monitoring and event early warning method and system |
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2023
- 2023-04-11 CN CN202310378103.0A patent/CN116449371A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116863715A (en) * | 2023-08-24 | 2023-10-10 | 北京首科丰汇科技有限公司 | Intelligent high-speed state monitoring and event early warning method and system |
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