CN213877047U - Highway traffic accident early warning system - Google Patents
Highway traffic accident early warning system Download PDFInfo
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- CN213877047U CN213877047U CN202022498597.0U CN202022498597U CN213877047U CN 213877047 U CN213877047 U CN 213877047U CN 202022498597 U CN202022498597 U CN 202022498597U CN 213877047 U CN213877047 U CN 213877047U
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Abstract
The utility model relates to a highway traffic accident early warning system belongs to road traffic safety field, include: the system comprises a plurality of Road Side Units (RSUs), a control module and a road management control center; the road side units RSU are symmetrically and uniformly distributed on two sides of a one-way two-lane road, the signal output end of each road side unit RSU is electrically connected with the signal input end of the control module, and the control module is connected with the road management control center through the Ethernet; the early warning system is simple in structure and easy to operate and implement, the time for obtaining the speed and the length of the vehicle and the time for passing through the RSU can be implemented, the current road risk grade is determined according to the obtained information, the rear driver at a fault point can perform early warning in three modes, namely an LED signal lamp, a vehicle-mounted early warning device and a variable information traffic sign, the rear driver can know the current road information from multiple channels conveniently, the driver can take effective evasive measures in time, and the traffic operation safety is guaranteed.
Description
Technical Field
The utility model relates to a road traffic safety field, concretely relates to highway traffic accident early warning system.
Background
With the improvement of the living standard of residents, the vehicle ownership rate continuously rises, the number of road vehicles is directly increased, and the road traffic accident rate is further continuously increased. Secondly, too fast speed is one of the main causes of most traffic accidents. When taking place the traffic accident, compare other vehicles nearer apart from the accident vehicle, often can not be fast timely know the accident situation of blocking up after the accident takes place for the rear vehicle driver apart from the accident vehicle one section distance to passive reduction reaction and braking time and then cause the secondary accident to take place. Therefore, it is necessary to give an early warning to the vehicle behind the accident in time after the accident occurs to the vehicle ahead. In addition, the traffic management department mainly depends on the mode of alarming by the parties and arranges a single mode of carrying out accident response by personnel going to the site for handling, so that the mode reduces the efficiency of handling and managing road accidents, further delays the time for dredging and recovering the road to be smooth and reduces the road traffic rate. Finally, under the current big background of intelligent traffic, the importance of accident big data collection and analysis is increasingly prominent, and road accident congestion real-time data acquisition is difficult, but the data plays a vital role in the overall improvement of later-stage traffic safety and even the improvement of a big intelligent traffic database, and the acquisition of related real-time accident congestion data is one of the more troublesome problems in the current traffic field and needs to be solved urgently.
The research technology in the field mostly starts from vehicle-road cooperation, and at present, road traffic safety can be improved only from one side. The early warning function is firstly applied more, namely, the purpose of single information early warning is achieved by reminding a driver through screen display of a vehicle-mounted information system and the like, the purpose of full system early warning cannot be achieved due to the fact that road main bodies are different, and the function is single, and the purpose of simple early warning can only be achieved. The traffic control departments such as accident flow data and the like simply return visits after an accident occurs, the obtained non-real-time data are more abundant, the later-stage accident analysis and road safety improvement effects are not as good as real-time data such as vehicle speed and the like, so that the accident congestion is more explanatory, and the real-time data acquisition is very difficult for an expressway. Finally, for highway road management, at present, related personnel are dispatched to the scene for evacuation and treatment after waiting for the condition verification of a traffic management department or a road safety management department in an accident party alarming mode, wherein the time difference enables the road to be more crowded and even delays the gold rescue time of injured personnel. Based on the above, a comprehensive system which can provide early warning of the front road to the driver in a whole course and in real time and has the functions of accident real-time data statistics and auxiliary real-time management is needed, so that the driving safety of the driver is improved comprehensively, and the popularity and the application degree of the vehicle-road cooperation in China are further improved.
SUMMERY OF THE UTILITY MODEL
For solving above problem, the utility model provides a highway traffic accident early warning system, this early warning system simple structure, easy operation is implemented, can implement the speed of a motor vehicle of acquireing the vehicle, the length of a motor vehicle, and the time through roadside unit RSU, and confirm current road risk grade according to the information of acquireing, the fault point rear navigating mate of being convenient for passes through the LED signal lamp, on-vehicle early warning equipment, three kinds of modes of variable information traffic sign carry out the early warning, make things convenient for the rear navigating mate to know current road information from the multichannel, so that the navigating mate in time takes effective evasion measure, guarantee traffic operation safety.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A highway traffic accident early warning system comprising: the system comprises a plurality of Road Side Units (RSUs), a control module and a road management control center; the road side units RSU are symmetrically and uniformly distributed on two sides of the one-way two-lane road, the signal output end of each road side unit RSU is electrically connected with the signal input end of the control module, and the control module is connected with the road management control center through the Ethernet.
Preferably, each road side unit RSU includes a detection module, an early warning module, and a processing module; the signal output end of the detection module is electrically connected with the signal input end of the processing module; the signal output end of the processing module is electrically connected with the signal input end of the control module, and the signal output end of the control module is respectively electrically connected with the signal input ends of the plurality of early warning modules.
Preferably, the number of the detection modules in each of the road side units RSU is plural.
Preferably, the detection module is used for detecting whether a vehicle passes through a one-way two-lane road or not and recording the time when the vehicle passes through;
the processing module determines the current speed and the length information of the vehicle according to the vehicle passing time acquired by the detection module;
the control module determines current road risk grade information according to the current speed information and the vehicle passing time obtained by the processing module; and the control module determines the early warning distance and the early warning information of the early warning module according to the current road risk grade information.
Further preferably, the early warning module is an LED signal lamp.
Further preferably, the detecting module is configured to detect whether a vehicle passes through a unidirectional two-lane road, and specifically includes:
when a vehicle passes through, the output signal of the detection module is 1; otherwise, the output signal of the detection module is 0.
Further preferably, the control module determines the current road risk level information according to the current vehicle speed information and the vehicle passing time obtained by the processing module, and specifically includes:
setting the current vehicle speed information obtained by the processing module as v, and when v is greater than a first speed threshold value, output signals of the detection modules in two adjacent road side units are respectively 1, and a time interval delta t recorded by the detection modules in the adjacent road side units is less than 0.96s, setting the current road risk grade as three grades, and indicating that the current road is smooth;
when the second speed threshold value is less than or equal to v and less than or equal to the first speed threshold value, the output signal of the detection module in the current road side unit is 1, the output signals of the detection modules in the next road side units are 0, and the time interval delta t recorded by the detection modules in the two previous road side units is less than or equal to 1.92s and more than or equal to 0.96s, the current road risk level is two levels, and the current road is indicated to be slightly congested; wherein the second speed threshold is less than the first speed threshold;
and when v is less than a second speed threshold value, the output signals of the detection modules in the current road side units are 1, the output signals of the detection modules in the next road side units are 0, and the time interval delta t recorded by the detection modules in the two previous road side units meets the condition that delta t is more than 1.92s, the current road risk level is one level, and the current road is seriously congested.
Further preferably, the control module determines the early warning distance and the early warning information of the early warning module according to the current road risk level information, and specifically includes:
when the current road risk level is three levels, the control module controls the LED signal lamp to be turned off for a long time;
when the current road risk level is the second level, the control module controls LED signal lamps in a preset distance range on two sides of the one-way two-lane highway to flash yellow lamps;
when the current road risk level is one level, the control module controls LED signal lamps on two sides of the one-way double-lane road to flash red lights within a preset distance range.
Further preferably, the processing module is a microprocessor.
Preferably, the control module comprises an industrial personal computer, a first signal output end of the processing module is electrically connected with a signal input end of the industrial personal computer, and the industrial personal computer is used for controlling the working state of the LED signal lamp.
Preferably, the control module further comprises a data storage module, and the second signal output end of the processing module is electrically connected with the signal input end of the data storage module; and the data storage module is used for storing the current vehicle speed and the vehicle length information obtained by the processing module.
Preferably, the control module further comprises a leakage protector, the leakage protector is electrically connected with the industrial personal computer, and the leakage protector is used for protecting a circuit of the control module.
Preferably, the system further comprises variable information traffic signs, the variable information traffic signs are arranged on the road sides of the one-way two-lane road at equal intervals, and the variable information traffic signs are connected with the industrial personal computer through Ethernet.
Preferably, the system further comprises vehicle-mounted early warning equipment, and the vehicle-mounted early warning equipment is connected with the industrial personal computer through an Ethernet.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a highway traffic accident early warning system simple structure, easy operation is implemented, through the speed of a plurality of trackside units RSU buried underground in the road both sides in real time acquire the vehicle, the length of a vehicle and the passing time information, and confirm current road risk grade information through the industrial computer, give road management control center with current road risk grade information transfer through the industrial computer, make things convenient for road management control center to send relevant personnel to the scene and dredge and handle the accident, improve highway accident handling and emergent efficiency, data can fill simultaneously and correspond the road big data and be convenient for later stage data statistics and the big data analysis of wisdom traffic.
(2) LED signal lamps, variable information traffic signs and vehicle-mounted early warning equipment which are respectively controlled by the industrial personal computer to synchronously send corresponding early warning information in real time according to current road risk grade information, so that personnel behind fault points can comprehensively know accident information in real time from multiple channels, the early warning efficiency is improved, drivers can take timely and effective evasive measures, and traffic and driving safety is guaranteed.
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The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of a highway traffic accident early warning system of the present invention;
FIG. 2 is a schematic structural diagram of a module of the industrial control machine of FIG. 1;
fig. 3 is a schematic structural diagram of the road side unit RSU in fig. 1.
In the above figures: 1 roadside unit RSU; 101 a detection module; 102 an early warning module; 103 a processing module; 2, a control module; 201 an industrial personal computer; 202 a data storage module; 203 a leakage protector; 204 power supply; 205 a total control unit; 3, a road management control center; 4, vehicle-mounted early warning equipment; 5 variable information traffic signs.
Detailed Description
Referring to fig. 1 to 3, according to an embodiment of the present invention, a highway traffic accident early warning system is provided, including: a plurality of road side units RSU1, a control module 2 and a road management control center 3; the multiple roadside units RSU1 are symmetrically and uniformly distributed on two sides of a one-way two-lane road, the signal output end of each roadside unit RSU1 is electrically connected with the signal input end of the control module 2, and the control module 2 is connected with the road management control center 3 through an Ethernet.
As shown in fig. 3, each RSU1 includes a plurality of detection modules 101, an early warning module 102, and a processing module 103. As shown in fig. 2, the control module 2 includes an industrial personal computer 201, a data storage module 202, a leakage protector 203, a power supply 204 and a general control unit 205; the power supply 204 is used for supplying power to each component in the industrial control module, and the master control unit 205 is responsible for information transfer, including receiving signals sent to the industrial control computer 201 by other components, sending instruction signals which need to be output to each component by the industrial control computer 201, and the like. The signal output end of each detection module 101 is electrically connected with the signal input end of the processing module 103; a first signal output end of the processing module 103 is electrically connected with a signal input end of the industrial personal computer 201, and a second signal output end of the processing module 103 is electrically connected with a signal input end of the data storage module 202; the signal output end of the industrial personal computer 201 is electrically connected with the signal input ends of the plurality of early warning modules 102, and the industrial personal computer 201 is connected with the road management control center 3 through the Ethernet.
Specifically, as shown in fig. 1, the industrial personal computer 201 is placed at the starting point of the road section, the first roadside unit RSU1 is equidistantly placed to the nth one along one side of the one-way two-lane road at intervals of 15 meters, and then the (n + 1) th roadside unit RSU1 is equidistantly arranged to the roadside to the 2n th roadside unit RSU1 on the other side of the one-way two-lane road through a pipeline reserved channel or a portal frame by using a connecting line, so that bilateral arrangement can be realized, and the overall arrangement of the whole system is completed.
As shown in fig. 3, each RSU has two detection modules 101, and compared to the single detection module 101 existing in the market, the double detection module 101 can take into account the multi-lane situation, which is beneficial to detecting the vehicle passing situation of each lane. The detection module 101 is an infrared laser sensor of a front-end detection device, and can detect the time when a vehicle arrives at or leaves the detection module 101 and other related signals, and detect whether the vehicle passes through by continuously emitting infrared rays with the frequency of 500Hz, specifically: when the detection module 101 detects that the infrared distance is smaller than the set value of the lane width, it indicates that a vehicle passes through, the signal detected by the detection module 101 is 1, and the time for the vehicle to pass through is recorded; otherwise, no vehicle passes through, and the signal detected by the detection module 101 is 0. And the detection module 101 is simple to construct, does not need to damage the original road surface, and has higher prediction accuracy and system stability.
The processing module 103 is a microprocessor, and determines the current speed and the length information of the vehicle according to the vehicle passing time obtained by the detecting module 101, specifically: assuming that the vehicle passes through two continuous RSUs for a distance h, the time taken for the two RSUs to detect the vehicle head is t1And t2If the vehicle speed is v ═ h/(t)2-t1+ epsilon), where epsilon is a random perturbation that is generated in view of the detection system's fine errors. The vehicle speed v data can be transmitted to the warning module to be used as different early warning trigger signals, and can be transmitted to the data storage module 202 to be used as the early warning trigger signalsThe method is a better basis for analyzing the intelligent traffic big data in the later period and can be used for filling the intelligent traffic big database. Length of vehicle L ═ v × (t)2-t1+ epsilon) -2d, wherein d is the detection range of RSU, and is generally set to 1.5m, and the data can be used for dividing the accident vehicle type by big data at the later stage.
The industrial personal computer 201 determines current road risk grade information according to the current vehicle speed information and the vehicle passing time obtained by the processing module 103, and the information is specifically shown in table 1:
(1) setting the current vehicle speed information obtained by the processing module 103 as v, when v is>The first speed threshold value and the output signals of the detection modules 101 in two adjacent road side units are respectively 1, as shown in the road side unit RSU1 in Table 1i-1、RSUi、RSUi+1The signals detected by the detecting modules 101 in (1) are all 1, and the time interval Δ t recorded by the detecting modules 101 in the adjacent road side units<And 0.96s, the current road risk level is three levels, which indicates that the current road is smooth.
(2) When the second speed threshold is less than or equal to v and less than or equal to the first speed threshold, and the output signal of the detection module 101 in the current road side unit is 1 (for example, RSU in table 1)i-1The signal detected by the detection module 101 in (1), and the output signal of the detection module 101 in the following multiple roadside units is 0 (as shown in the roadside unit RSU1 in table 1)i、RSUi+1The signals detected by the detection modules 101 in the two road side units are all 0), if the time interval delta t recorded by the detection modules 101 in the first two road side units meets the condition that delta t is more than or equal to 0.96s and less than or equal to 1.92s, the current road risk level is of the second level, which indicates that the current road is slightly congested, but the basic traffic state can be ensured; the first speed threshold and the second speed threshold can be set according to the actual road conditions, for example, the second speed threshold is set to be 30km/h, and the first speed threshold is set to be 60 km/h.
(3) When v < the second speed threshold, and the output signal of the detection module 101 in the current road side unit is 1 (as RSU in Table 1)i-1The signal detected by the detection module 101 in (1), and the output signal of the detection module 101 in the following multiple roadside units is 0 (as shown in the roadside unit RSU1 in table 1)i、RSUi+1Detected by the detection module 101Signals are all 0), the time interval delta t recorded by the detection modules 101 in the first two roadside units meets the condition that delta t is more than 1.92s, the current road risk level is first grade, and the current road is seriously congested.
(4) In addition, considering that there may be a fault of the individual RSU detection module 101, that is, the RSU detects the 0 signal and the RSUs before and after the RSU detect the 1 signal, the alarm is released and the LED lamp is turned off.
TABLE 1 road Risk ratings criteria
The industrial personal computer 201 determines the early warning distance and the early warning information of the early warning module 102 according to the current road risk level information, wherein the early warning module 102 is an LED signal lamp, so that the lamps with different colors flicker play different early warning roles, and specifically:
when the current road risk level is three levels, the industrial personal computer 201 controls the LED signal lamp to be turned off for a long time;
when the current road risk level is the second grade, the industrial personal computer 201 controls the LED signal lamp flashing yellow light in the preset distance range on both sides of the one-way two-lane road (if the industrial personal computer 201 controls the LED signal lamp flashing yellow light in the road side unit RSU1 within the range of 200 meters behind the fault point), the flashing frequency is 1Hz, and the real-time whole-course two-side road safety early warning at the rear of the fault point is realized. The specific preset distance range can be set according to the actual road condition.
When the current road risk level is one level, the industrial personal computer 201 controls LED signal lamps in preset distance ranges on two sides of the one-way two-lane highway to flash red lights (for example, the industrial personal computer 201 controls the LED signal lamps in the road side unit RSU1 in the range of 200 meters behind the fault point to flash red lights), and the flashing frequency is 2 Hz.
The data storage module 202 in the control module 2 is used for storing the current vehicle speed and vehicle length information obtained by the processing module 103, and transmitting the obtained current vehicle speed and vehicle length information to the road management control center 3, and the road management control center 3 can store the related data into the intelligent traffic big database so as to facilitate the later data analyst to perform related accident data statistics and analysis. The earth leakage protector 203 in the control module 2 is used for protecting the circuit of the control module 2. The industrial personal computer 201 of the control module 2 can transmit the road risk level information to the road management control center 3 in real time, and the road management control center 3 can arrange related personnel to go to the site to perform rescue and dredge as soon as possible according to the received traffic accident occurrence condition.
The highway traffic accident early warning system also comprises a variable information traffic sign 5(VMS) and a vehicle-mounted early warning device 4; the variable information traffic signs 5 are arranged on the road side or above the one-way two-lane road at intervals of 500 meters, and the variable information traffic signs 5 and the vehicle-mounted early warning equipment 4 are respectively connected with the industrial personal computer 201 through Ethernet. The variable information traffic sign 5 and the vehicle-mounted early warning device 4 both have unique fixed numbers in the industrial personal computer 201 to represent relative positions of the variable information traffic sign and the vehicle-mounted early warning device. When a certain RSU detects that the speed of a vehicle is abnormal in a self detection range and the current road risk level is determined to be the first level or the second level through the industrial personal computer 201, the industrial personal computer 201 controls the variable information traffic sign 5 and the vehicle-mounted early warning equipment 4 within a range of 200 meters behind a fault point to send out corresponding warning information, so that a driver behind can know the congestion situation of a front accident from multiple channels. For example, the variable information traffic sign 5 may display "light congestion occurs ahead, please pay attention to deceleration running", "heavy congestion occurs ahead, please go round the road", and the like.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims (7)
1. A highway traffic accident early warning system, comprising: the system comprises a plurality of road side units RSUs (1), a control module (2) and a road management control center (3); the road side units RSU (1) are symmetrically and uniformly distributed on two sides of a one-way two-lane road, the signal output end of each road side unit RSU (1) is electrically connected with the signal input end of the control module (2), and the control module (2) is connected with the road management control center (3) through the Ethernet.
2. The highway traffic accident warning system according to claim 1, wherein each of the roadside units (RSUs) (1) comprises a detection module (101), a warning module (102) and a processing module (103); wherein, the signal output end of the detection module (101) is electrically connected with the signal input end of the processing module (103); the signal output end of the processing module (103) is electrically connected with the signal input end of the control module (2), and the signal output end of the control module (2) is electrically connected with the signal input ends of the early warning modules (102) respectively.
3. The highway traffic accident warning system according to claim 2, wherein there are a plurality of detection modules (101) in each of the roadside units (RSUs) (1).
4. The highway traffic accident pre-warning system according to claim 2, wherein the detection module (101) is used for detecting whether a vehicle passes through a one-way two-lane highway or not and recording the time when the vehicle passes through;
the processing module (103) determines the current speed and the length information of the vehicle according to the vehicle passing time acquired by the detection module (101);
the control module (2) determines current road risk grade information according to the current vehicle speed information and the vehicle passing time obtained by the processing module (103); the control module (2) determines the early warning distance and the early warning information of the early warning module (102) according to the current road risk grade information.
5. The highway traffic accident warning system of claim 4, wherein the warning module (102) is an LED signal lamp; the processing module (103) is a microprocessor.
6. The highway traffic accident pre-warning system according to claim 5, wherein the control module (2) comprises an industrial personal computer (201) and a data storage module (202); a first signal output end of the processing module (103) is electrically connected with a signal input end of the industrial personal computer (201), and the industrial personal computer (201) is used for controlling the working state of the LED signal lamp;
a second signal output end of the processing module (103) is electrically connected with a signal input end of the data storage module (202); the data storage module (202) is used for storing the current vehicle speed and the vehicle length information obtained by the processing module (103).
7. The highway traffic accident warning system according to claim 6, further comprising a variable information traffic sign (5) and a vehicle-mounted warning device (4); the variable information traffic signs (5) are arranged on the road sides of the one-way two-lane road at equal intervals, and the variable information traffic signs (5) and the vehicle-mounted early warning equipment (4) are respectively connected with the industrial personal computer (201) through Ethernet.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643540A (en) * | 2021-08-16 | 2021-11-12 | 李振宇 | Rapid detection and early warning system and method for highway accidents |
| CN114360293A (en) * | 2022-01-12 | 2022-04-15 | 武汉中交交通工程有限责任公司 | ETC technology-based expressway parking early warning method |
| CN115100865A (en) * | 2022-06-24 | 2022-09-23 | 上海市政工程设计研究总院（集团）有限公司 | Management and control system for traffic safety of tunnel portal area |
| CN116863707A (en) * | 2023-08-31 | 2023-10-10 | 天津光电比特信息技术有限公司 | Driving traffic guidance method, device, equipment and medium |
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2020
- 2020-11-03 CN CN202022498597.0U patent/CN213877047U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643540A (en) * | 2021-08-16 | 2021-11-12 | 李振宇 | Rapid detection and early warning system and method for highway accidents |
| CN113643540B (en) * | 2021-08-16 | 2022-06-14 | 李振宇 | Rapid detection and early warning system and method for highway accidents |
| CN114360293A (en) * | 2022-01-12 | 2022-04-15 | 武汉中交交通工程有限责任公司 | ETC technology-based expressway parking early warning method |
| CN115100865A (en) * | 2022-06-24 | 2022-09-23 | 上海市政工程设计研究总院（集团）有限公司 | Management and control system for traffic safety of tunnel portal area |
| CN116863707A (en) * | 2023-08-31 | 2023-10-10 | 天津光电比特信息技术有限公司 | Driving traffic guidance method, device, equipment and medium |
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