Precise positioning system and method for a road barrier struck by a vehicle

Abstract

The application discloses a road isolation guardrail collision accurate positioning system and method, and belongs to the technical field of road traffic safety management. The system comprises a main monitoring cable, a public line and a monitoring line corresponding to the traffic guardrail number; a guardrail monitoring cable is arranged along the horizontal edge of the traffic guardrail, and the internal cable core is arranged to be the same as the main monitoring cable; the guardrail monitoring cable is arranged to be in tension on the guardrail, and the guardrail monitoring cable is broken when the guardrail is deformed due to impact; a guardrail interface, the guardrail interface comprises a first interface and a second interface; a wiring end plate; a matrix switch; an electronic voltmeter; a control platform and an alarm module. The application utilizes a simple multi-core cable device to segmentally and real-timely monitor each isolation guardrail, can timely position each guardrail when the guardrail is deformed, analyzes the accurate position of the impacted guardrail through the control platform, simultaneously sends out an alarm information, and improves the rapid reaction capability and the repair speed of the supervision of each isolation guardrail.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road safety management, in particular to a road isolation guardrail hit accurate positioning system and method. BACKGROUND

[0002] In recent years, with the rapid development of road construction, the length of the road is growing, in order to regulate the road traffic order, prevent and reduce road traffic accidents, improve the road traffic efficiency, according to the demand, the public security traffic management department sets up isolation guardrail along the road center line or curb, for realizing the road order, safety, unobstructed target, plays an important supporting role.

[0003] In the current intelligent traffic monitoring system, although the real-time monitoring and management of traffic flow, vehicle violation behavior and pedestrian safety and other aspects have been realized, but in the aspect of road facility maintenance, especially the monitoring and positioning of road guardrail damage, the existing scheme still has significant deficiencies. Specifically:

[0004] Lack of monitoring function for road guardrail damage: the existing intelligent traffic monitoring system mainly focuses on the monitoring of dynamic traffic elements such as vehicles, pedestrians, etc., and pays insufficient attention to the integrity monitoring of static road facilities, especially road guardrails. This leads to the fact that when the guardrail is damaged due to traffic accidents, natural disasters or long-term wear and tear, the system cannot timely discover and notify the relevant departments to handle.

[0005] Cannot accurately locate the position of the damaged guardrail: even if part of the monitoring system has the ability to monitor the abnormality of the guardrail, it usually cannot accurately locate the specific position of the damaged guardrail. This requires manual patrol to confirm the damage point, greatly increasing the repair response time and workload, and reducing the processing efficiency.

[0006] If the damage of the road guardrail cannot be repaired in time, it may cause more serious traffic accidents, threatening the safety of driving and pedestrians. Secondly, the lack of effective monitoring and rapid response mechanism makes it difficult for the guardrail maintenance department to efficiently allocate resources, leading to the increase of maintenance cost and the decline of service quality. SUMMARY

[0007] In view of the problem in the prior art that it is impossible to timely and accurately discover the alarm information after the road isolation guardrail is hit, the present application provides a road isolation guardrail hit accurate positioning system and method. The present application uses a simple multi-core cable device to monitor the isolation guardrail in segments, which can timely locate when the guardrail deforms, improves the supervision efficiency of the isolation guardrail, and reduces the maintenance cost of the road safety facilities.

[0008] The technical means adopted by the present application are as follows:

[0009] A road isolation guardrail is hit accurate positioning system, comprising:

[0010] The main monitoring cable includes a common line and a monitoring line, the number of the monitoring line is equal to the number of the traffic guardrail to be detected, and the traffic guardrail is numbered in sequence according to the arrangement order; the corresponding monitoring line is numbered in sequence;

[0011] The guardrail monitoring cable is arranged along the horizontal edge of the traffic guardrail, and the internal cable core of the guardrail monitoring cable is arranged in the same way as the main monitoring cable. When the guardrail is deformed or displaced due to impact, the guardrail monitoring cable is broken;

[0012] The interface device comprises a first interface, a second interface and a third interface, wherein:

[0013] The first interface is arranged at both ends of each guardrail monitoring cable, and is connected to the internal cable core of the main monitoring cable or the upstream guardrail monitoring cable in a one-to-one correspondence on one side, and is matched and connected to the first interface of the downstream guardrail on the other side, so as to realize communication with the downstream guardrail monitoring cable,

[0014] The second interface is used for connecting the first interfaces of two adjacent interactive guardrails, and the second interface is connected to the common line through the monitoring line corresponding to the upstream monitoring guardrail in the upstream guardrail monitoring cable on one side, and is connected to the downstream guardrail monitoring cable through the remaining lines in the upstream guardrail monitoring cable on the other side,

[0015] The third interface is used for cooperating with the first interface of the terminal guardrail, and the monitoring line corresponding to the terminal guardrail in the guardrail monitoring cable is connected to the common line;

[0016] One end of the guardrail monitoring line is connected to the common line in the guardrail monitoring cable, and the other end is connected to the monitoring line corresponding to the traffic guardrail in the guardrail monitoring cable;

[0017] The terminal board comprises a first terminal and a second terminal, one side of the first terminal is connected to the common line of the main monitoring cable, and the other side is connected to the positive electrode of the direct current power supply. The second terminal is connected to one monitoring line of the main monitoring cable on one side according to the monitoring line number sequence, and is connected to the electronic voltmeter through the matrix switch on the other side;

[0018] The matrix switch is used for realizing the communication of each monitoring line with the electronic voltmeter in sequence;

[0019] The electronic voltmeter is used for judging the on-off of the corresponding guardrail monitoring line according to the voltage value output by the guardrail monitoring line. The positive electrode of the electronic voltmeter is connected to the matrix switch, and the negative electrode is connected to the negative electrode of the direct current power supply;

[0020] A control platform is used to control the matrix switch to connect the specified guardrail monitoring line to the electronic voltage meter, and control the alarm module to send alarm information when the voltage is abnormal.

[0021] Further, the system further comprises an alarm module, and a voltage value output end of the electronic voltage meter is connected to the alarm module.

[0022] Further, the alarm module is in communication connection with the traffic control center through a 5G router.

[0023] Further, the second interface is arranged at a first end of the guardrail monitoring cable, and the guardrail monitoring cable further comprises a second end, wherein the first interface at the first end is used to connect the upstream first interface, and the first interface at the second end is used to connect the downstream first interface.

[0024] The application further discloses a precise positioning system for a crashed road isolation guardrail, which is realized based on the above system and comprises the following steps.

[0025] S1, arranging the anti-collision guardrail according to the road traffic safety isolation requirement, connecting the main monitoring cable and the guardrail monitoring cable, recording the number and position information of the anti-collision guardrail, and arranging the guardrail monitoring cable on each anti-collision guardrail to ensure that the guardrail monitoring cable is interrupted when the anti-collision guardrail is deformed.

[0026] S2, connecting the guardrail monitoring cables through the second interface, and connecting the guardrail monitoring line of the current guardrail to the common line;

[0027] S3, connecting each monitoring line of the main monitoring cable and the common line to the terminal board at the monitoring platform;

[0028] S4, after the system is powered on, the monitoring line of the multi-core monitoring cable is monitored in turn according to the number order through the matrix switcher at a fixed period, when it is judged that the monitoring line is disconnected, S5 is executed, otherwise, S4 is executed.

[0029] S5, acquiring the number of the disconnected interval monitoring line, calling the guardrail position monitored by the number of the monitoring line, and assigning maintenance through the control center.

[0030] Compared with the prior art, the application has the following advantages:

[0031] The application provides a precise position alarm system and method for quickly finding the precise position of a crashed road isolation guardrail, and the position of the deformed guardrail is precisely positioned through simple electrical element connection and based on the multi-core monitoring cable, so that the monitoring efficiency and the emergency response speed are greatly improved.

[0032] Based on the above reasons, the application can be widely popularized in the field of road traffic safety management. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of a road guardrail collision accuracy positioning system according to an embodiment of the present invention.

[0035] Figure 2 This is a front view of the arrangement of the guardrail monitoring line extending to the traffic isolation post in an embodiment of the present invention.

[0036] Figure 3 This is a top view of the arrangement of the guardrail monitoring line extending to the traffic isolation post in an embodiment of the present invention. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] like Figure 1 As shown, the present invention provides a road guardrail collision accuracy positioning system, including: a main monitoring cable, a guardrail monitoring cable, a guardrail monitoring line, an interface device, a terminal block, a matrix switching switch, an electronic voltmeter, a control platform, and an alarm module.

[0040] The main monitoring cable includes one common line and monitoring lines, the number of the monitoring lines is equal to the number of the traffic guardrails to be detected, the traffic guardrails are numbered in sequence according to the arrangement order, and the corresponding monitoring lines are numbered in sequence. Figure 1 In the embodiment shown in the figure, one common line is provided, numbered L0, and nine monitoring lines are provided, numbered L1-L9 in sequence, wherein L2-L9 are used for monitoring the states of the first to eighth traffic guardrails arranged in sequence, and L1 is a fault monitoring line of the multi-core monitoring line from the control platform to the nearest anti-collision guardrail.

[0041] The guardrail monitoring cable is arranged along the horizontal edge of the traffic guardrail, and the internal cable core of the guardrail monitoring cable is the same as that of the main monitoring cable. When the guardrail is deformed or displaced due to impact, the guardrail monitoring cable is broken.

[0042] Specifically, the guardrail monitoring cable is arranged in tension on the traffic guardrail, and when the guardrail is deformed or displaced due to impact, the monitoring line of the guardrail monitoring cable is broken. The monitoring line corresponding to the current guardrail number in the guardrail monitoring cable is connected to the common line of the guardrail detection cable of the corresponding traffic guardrail. As shown in the figure, Figure 1 In the embodiment shown in the figure, after the guardrail monitoring cable of the guardrail H1 is arranged, the monitoring line L2 corresponding to H1 in the guardrail monitoring cable is connected to the common line, and a path is formed through the common line and the monitoring line L2. When the switching switch controls the electronic voltmeter to monitor the state of the path, if the path can normally conduct, it indicates that the guardrail H1 is intact, otherwise the guardrail H1 is damaged.

[0043] The interface device includes a first interface, a second interface and a third interface, wherein:

[0044] The first interface is arranged at both ends of each guardrail monitoring cable, and is connected to the internal cable core of the main monitoring cable or the upstream guardrail monitoring cable one by one on one hand, and is matched and connected to the first interface of the downstream guardrail on the other hand, so as to realize communication with the downstream guardrail monitoring cable.

[0045] The second interface is used for connecting the first interfaces of two adjacent interactive guardrails, and on one hand, the monitoring line corresponding to the upstream monitoring guardrail number in the upstream guardrail monitoring cable connected by the second interface is communicated to the common line, and on the other hand, the remaining lines in the upstream guardrail monitoring cable are communicated to the downstream guardrail monitoring cable one by one.

[0046] The third interface is used for cooperating with the first interface of the last end guardrail, and the monitoring line corresponding to the last end guardrail in the guardrail monitoring cable is communicated to the common line.

[0047] Specifically, each crash barrier is laid with a guardrail monitoring cable, each guardrail monitoring cable needs to be tensioned and fixed on the crash barrier, a first interface is arranged at both ends of the guardrail, both ends of the monitoring cable are sequentially connected with the first interfaces at both ends, a second interface and a third interface are arranged, the first interfaces of adjacent guardrails are communicated, a multi-core monitoring cable is formed which penetrates through all the crash barriers, and a common line in the multi-core monitoring cable penetrates through the whole road. The second interface is used for communicating one end of the guardrail monitoring line with the common line in the guardrail monitoring cable, and the other end of the guardrail monitoring line with the monitoring line in the guardrail monitoring cable corresponding to the number of the traffic guardrail. The third interface is used for communicating the corresponding monitoring line of the first interface of the last end guardrail with the common line. When one end of the common line in the multi-core monitoring line from the control platform to each crash barrier is connected with the positive electrode of the power supply of the control platform, and the other end is communicated with the monitoring lines L2-9 of each guardrail respectively, a monitoring loop corresponding to each crash barrier is formed, wherein L0 is the common line, and L1 is the fault monitoring line of the multi-core monitoring line from the control platform to the nearest crash barrier. In the application, the monitoring loops of the guardrails are arranged in parallel. When the voltage of a certain monitoring loop suddenly changes, it indicates that the monitoring line is disconnected, and the guardrail is deformed under external force. At this time, the position of each crashed guardrail can be located through the control platform, and the maintenance personnel can be notified to handle through the alarm module.

[0048] As a preferred embodiment of the application, for the guardrail arranged at the edge, the corresponding guardrail monitoring line also extends to the traffic separation column, and is arranged in a cross shape on the outer surface of the traffic separation column and fixed with the ground, for monitoring whether the traffic separation column is deformed, as shown in Figures 2-3

[0049] The guardrail monitoring line extends to the separation column, is arranged in a cross shape on the outer surface of the separation column, and is connected with the guardrail monitoring cable through the fourth interface, so that the system can monitor the state of the separation column when monitoring the last guardrail. There is no need to separately set a new separation scheme.

[0050] The terminal board comprises a first terminal and a second terminal, one side of the first terminal is connected with the common line of the multi-core monitoring cable, and the other side is connected with the positive electrode of the direct current power supply, one side of the second terminal is connected with one monitoring line of the multi-core monitoring cable, and the other side is connected with the electronic voltmeter through the matrix switch.

[0051] Specifically, the system power supply adopts a direct current uninterruptible power supply, one electrode of which is connected with the common line, and the other electrode is connected with the electronic voltmeter. According to the need of road separation, the guardrails are divided into several groups, each of which needs to be numbered, named and marked with the monitoring start point and the meter number. On the system platform side, each wire of the multi-core cable needs to be fixed to the terminal board according to the common line and the number of the monitoring guardrails.

[0052] ​The matrix switch is used to realize the sequential connection of each guardrail monitoring line and the electronic voltage meter.

[0053] Specifically, the input end of the matrix switch is connected to the terminal board, and each wire of the multi-core cable is connected.

[0054] In specific implementation, when the system starts to run, the control module sends instructions to the matrix switch according to the preset program, so that each monitoring line can be monitored one by one in a short time, and the monitoring efficiency is greatly improved.

[0055] As a preferred embodiment, the matrix switch is closely integrated with the terminal board, the electronic voltage meter, the control platform and other components. This integrated design makes the system more responsive and intelligent. Through actual application test, the system successfully realizes uninterrupted monitoring of multiple monitoring intervals by using the matrix switch, and significantly improves the real-time performance and accuracy of guardrail monitoring.

[0056] The electronic voltage meter is used to determine the on-off state of the corresponding guardrail monitoring line according to the voltage output by the guardrail monitoring line.

[0057] Specifically, the electronic voltage meter determines the on-off state of each monitoring line by monitoring the voltage change output by the matrix switching module. When the voltage level of a certain line is abnormal, the control platform receives the signal immediately.

[0058] The control platform is used to control the matrix switch to connect the specified guardrail monitoring line to the electronic voltage meter, and to control the alarm module to send alarm information when the voltage is abnormal.

[0059] The alarm module is connected to the traffic control center through the 5G router and sends alarm information in time.

[0060] The application also discloses a precise positioning system for a crashed road isolation guardrail, which is realized based on the above system and comprises the following steps.

[0061] S1, according to the demand of road traffic safety isolation, the anti-collision guardrail is arranged, the main monitoring cable and each guardrail monitoring cable are connected, the number and position information of the anti-collision guardrail are recorded, and the guardrail monitoring cable is arranged and tensioned on each anti-collision guardrail to ensure that the guardrail monitoring cable is interrupted when the anti-collision guardrail is deformed.

[0062] S2, each guardrail monitoring cable is connected through the second interface, and the guardrail monitoring line of the current guardrail is connected to the public line.

[0063] S3, connecting each monitoring line and the common line of the main monitoring cable to the terminal board at the monitoring platform;

[0064] S4, after the system is powered on, the on-off monitoring of each monitoring line of the multi-core monitoring cable is sequentially performed according to the numbering order through the matrix switcher at a fixed period, when it is judged that a monitoring line is disconnected, S5 is executed, otherwise, S4 is executed;

[0065] S5, acquiring the number of the disconnected interval monitoring line, calling the monitored guardrail position corresponding to the number of the monitoring line, and assigning maintenance through the command center.

[0066] For the method for accurately positioning a crashed road isolation guardrail, since it corresponds to the system for accurately positioning a crashed road isolation guardrail in the above embodiment, the description is relatively simple, and the relevant similar parts can be seen in the above description of the system for accurately positioning a crashed road isolation guardrail, which will not be described in detail here.

[0067] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A precise positioning system for road guardrail collisions, characterized in that, include: The main monitoring cable includes a common line and monitoring lines. The number of monitoring lines is equal to the number of traffic barriers to be monitored. The traffic barriers are numbered sequentially according to their arrangement order, and the corresponding monitoring lines are numbered sequentially. The guardrail monitoring cable is tensioned along the horizontal edge of the traffic guardrail. The internal cable core of the guardrail monitoring cable is the same as that of the main monitoring cable. When the guardrail is impacted and deformed or displaced, the guardrail monitoring cable breaks. An interface device, comprising a first interface, a second interface, and a third interface, wherein: The first interface is located at both ends of each guardrail monitoring cable, and the first interface enables the one-to-one connection of the internal cable cores of the guardrail monitoring cables of adjacent guardrails. The second interface is used to connect the first interfaces of two adjacent guardrails. Each second interface is configured with a connection method according to the guardrail number: on the one hand, each monitoring line and common line in the first interface of the upstream guardrail are connected to each monitoring line and common line in the adjacent downstream guardrail; on the other hand, according to the guardrail number, the monitoring line corresponding to the upstream guardrail number is connected to the common line. The third interface is used to connect to the first interface downstream of the last guardrail, connecting the monitoring line corresponding to the last guardrail number to the common line. The terminal block includes a first terminal and a second terminal. One side of the first terminal is connected to the common line of the main monitoring cable, and the other side is connected to the positive terminal of the DC power supply. The second terminal is connected to one monitoring line of the main monitoring cable on one side according to the monitoring line numbering order, and the other side is connected to an electronic voltmeter through a matrix switching switch. A matrix switching switch is used to connect each monitoring line sequentially to an electronic voltmeter; An electronic voltmeter is used to determine the continuity of the corresponding guardrail monitoring line based on the voltage value output by the guardrail monitoring line. The positive terminal of the electronic voltmeter is connected to the matrix switcher, and the negative terminal is connected to the negative terminal of the DC power supply. The control platform is used to control the matrix switching switch to connect the designated guardrail monitoring line to the electronic voltmeter, and at the same time control the alarm module to issue alarm information when the voltage is abnormal.

2. The road guardrail collision accuracy positioning system according to claim 1, characterized in that, The system also includes an alarm module, and the voltage output terminal of the electronic voltmeter is connected to the alarm module.

3. The road guardrail collision accuracy positioning system according to claim 2, characterized in that, The alarm module is connected to the traffic control center via a 5G router.

4. The road guardrail collision accuracy positioning system according to claim 1 is characterized in that, The second interface is located at the first end of the guardrail monitoring cable, and the guardrail monitoring cable also includes a second end, wherein the first interface at the first end is used to connect to the upstream first interface, and the first interface at the second end is used to connect to the downstream first interface.

5. A method for accurately locating a road safety barrier after a collision, implemented based on the system described in any one of claims 1-4, characterized in that, Includes the following steps: S1. Arrange crash barriers according to road traffic safety isolation requirements, connect the main monitoring cable and the monitoring cables of each barrier; record the number and location information of the crash barriers; tension the monitoring cables on each section of the crash barrier to ensure that the monitoring cables will be interrupted when the crash barrier deforms. S2. Use the second interface to connect the monitoring cables of each guardrail and connect the current guardrail monitoring line to the common line; S3. Connect each monitoring line and common line of the main monitoring cable to the terminal block at the monitoring platform; S4. After the system is powered on, the matrix switcher sequentially monitors the continuity of each monitoring line of the multi-core monitoring cable according to the numbering order at a fixed cycle. If it is determined that a monitoring line is disconnected, S5 is executed; otherwise, S4 is executed. S5. Obtain the number of the monitoring line in the disconnected section, retrieve the guardrail location monitored by the monitoring line with that number, and assign maintenance through the command center.

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