System and method for accurately positioning collided road isolation guardrail

Abstract

The invention discloses a system and a method for accurately positioning a collided road isolation guardrail, and belongs to the technical field of road traffic safety management. The system comprises a main monitoring cable which comprises a public line and monitoring lines corresponding to traffic guardrail numbers; the guardrail monitoring cable is arranged 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, the guardrail monitoring cable is arranged on the guardrail in a tensioning mode, and when the guardrail is collided and deforms, the guardrail monitoring cable is broken; the guardrail interface comprises a first interface and a second interface; a terminal plate; a matrix change-over switch; an electronic voltmeter; and a control platform and an alarm module. According to the invention, the simple multi-core cable equipment is utilized to monitor each isolation guardrail in a segmented and real-time manner, timely positioning can be carried out when each guardrail deforms, the accurate position of the collided guardrail can be analyzed through the control platform, alarm information can be sent out, and the rapid response capability and the first-aid repair speed of supervision of each isolation guardrail can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of road safety management, and in particular to a system and method for accurately locating a road isolation guardrail that has been hit. Background Art

[0002] In recent years, with the rapid development of road construction, the length of roads has continued to increase. In order to regulate road traffic order, prevent and reduce road traffic accidents, and improve road traffic efficiency, local public security traffic management departments have set up isolation guardrails along the center line or curb line of the road according to demand, which has played an important supporting role in achieving the goal of orderly, safe and smooth roads.

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

[0004] Lack of monitoring function for road guardrail damage: The existing intelligent traffic monitoring system mainly focuses on monitoring dynamic traffic elements, such as vehicles and pedestrians, but pays insufficient attention to the integrity monitoring of static road facilities, especially road guardrails. As a result, when the guardrail is damaged due to traffic accidents, natural disasters or long-term wear and tear, the system cannot detect it in time and notify the relevant departments for processing.

[0005] Unable to accurately locate the damaged guardrail: Even if some monitoring systems have the ability to detect guardrail anomalies, they are usually unable to accurately locate the specific location of the damage. This requires manual inspection to confirm the damage point, which greatly increases the maintenance response time and workload and reduces processing efficiency.

[0006] If the damage to road guardrails is not repaired in time, it may cause more serious traffic accidents and threaten the safety of drivers and pedestrians. Secondly, the lack of effective monitoring and rapid response mechanisms makes it difficult for guardrail maintenance departments to allocate resources efficiently, resulting in increased maintenance costs and reduced service quality. Summary of the invention

[0007] In view of the problem that the existing technology cannot accurately detect in real time and immediately send out alarm information after the road isolation guardrail is hit. The present invention provides a system and method for accurately locating the road isolation guardrail when it is hit. The present invention uses a simple multi-core cable device to monitor the isolation guardrail in sections, and can locate it in time when the guardrail is deformed, thereby improving the supervision efficiency of the isolation guardrail and reducing the maintenance cost of road safety facilities.

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

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

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

[0011] Guardrail monitoring cable, the guardrail monitoring cable is arranged in tension along the horizontal edge of the traffic guardrail, the inner cable core of the guardrail detection cable is arranged in the same manner as the main monitoring cable, and when the guardrail is impacted and deformed or displaced, the guardrail monitoring cable breaks;

[0012] An interface device, the interface device comprising a first interface, a second interface and a third interface, wherein:

[0013] The first interface is set at both ends of each guardrail monitoring cable. On the one hand, the first interface is connected to the internal cable core of the main monitoring cable or the upstream guardrail monitoring cable in a one-to-one correspondence, and on the other hand, it is matched and connected to the first interface of the downstream guardrail to achieve communication with the downstream guardrail monitoring cable.

[0014] The second interface is used to connect the first interfaces of two adjacent interactive guardrails. On the one hand, the second interface connects the monitoring line corresponding to the upstream monitoring guardrail number in the upstream guardrail monitoring cable to the common line, and on the other hand, connects the remaining lines in the upstream guardrail monitoring cable to the downstream guardrail monitoring cable one by one.

[0015] The third interface is used to cooperate with the first interface of the last guardrail to connect the monitoring line corresponding to the last guardrail in the guardrail monitoring cable to the common line;

[0016] Connect one end of the guardrail monitoring line to the common line in the guardrail monitoring cable, and the other end to the monitoring line in the guardrail detection cable corresponding to the traffic guardrail number;

[0017] A terminal board, the terminal board 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 pole of the DC power supply, and the second terminal is connected to a monitoring line of the main monitoring cable on one side according to the monitoring line numbering sequence, and the other side is connected to the electronic voltmeter through a matrix switching switch;

[0018] A matrix switching switch is used to connect each monitoring line to the electronic voltmeter in sequence;

[0019] An electronic voltmeter, used to judge the on / off status of the corresponding guardrail monitoring line according to the voltage value output by the guardrail monitoring line, wherein the positive electrode of the electronic voltmeter is connected to the matrix switcher, and the negative electrode is connected to the negative electrode of the DC power supply;

[0020] 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 an alarm message when the voltage is abnormal.

[0021] Furthermore, the system also includes an alarm module, and the voltage value output end of the electronic voltmeter is connected to the alarm module.

[0022] Furthermore, the alarm module is connected to the traffic command center through a 5G router.

[0023] Furthermore, the second interface is arranged at the first end of the guardrail monitoring cable, and the guardrail monitoring cable also includes a second end, wherein the first interface located at the first end is used to connect to the upstream first interface, and the first interface located at the second end is used to connect to the downstream first interface.

[0024] The present invention also discloses a road isolation guardrail collision accurate positioning system, which is implemented based on the above system and includes the following steps:

[0025] S1. Arrange anti-collision guardrails according to the requirements of road traffic safety isolation, connect the main monitoring cable and the monitoring cables of each guardrail; record the number and location information of the anti-collision guardrail; tension and arrange the guardrail monitoring cable on each section of the anti-collision guardrail to ensure that the guardrail monitoring cable will be interrupted when the anti-collision guardrail is deformed;

[0026] S2. Use the second interface to connect the monitoring cables of each guardrail, and connect the guardrail monitoring line of the current guardrail to the common line;

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

[0028] S4, after the system is powered on, each monitoring line of the multi-core monitoring cable is monitored in sequence according to the numbering sequence through the matrix switcher at a fixed period. If it is determined that a monitoring line is disconnected, S5 is executed, otherwise S4 is executed;

[0029] S5. Obtain the number of the monitoring line in the disconnected section, retrieve the guardrail position corresponding to the monitoring line with the number, and assign maintenance through the command center.

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

[0031] The present invention provides a system and method for quickly discovering the precise location of a road isolation guardrail being hit and issuing an alarm. Through simple electrical component connections and based on a multi-core monitoring cable, road guardrail monitoring is achieved, and the position of a deformed guardrail is accurately located, greatly improving monitoring efficiency and emergency response speed.

[0032] Based on the above reasons, the present invention can be widely promoted in the fields of road traffic safety management and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 The present invention is a schematic diagram of the structure of a system for accurately locating a road isolation guardrail after being hit in 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 column in an embodiment of the present invention.

[0036] Figure 3 It is a top view of the arrangement of the guardrail monitoring line extending to the traffic isolation column in an embodiment of the present invention. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

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

[0040] The main monitoring cable includes a common line and monitoring lines. The number of the monitoring lines is equal to the number of traffic barriers to be detected. The traffic barriers are numbered in sequence according to the arrangement order, and the corresponding monitoring lines are numbered in sequence. Figure 1 In the embodiment shown, one common line is set, numbered L0, and nine monitoring lines are set, numbered L1-L9 in sequence, among which L2-L9 are used to monitor the status 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. The internal cable core setting of the guardrail detection 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.

[0042] Specifically, the guardrail monitoring cable is tensioned and arranged on the traffic guardrail. When the guardrail is impacted and deformed or displaced, the guardrail monitoring line 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 traffic guardrail to which it belongs. Figure 1 In the embodiment shown, 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 this path, if the path can be normally conducted, it means that the guardrail H1 is intact, otherwise the guardrail H1 is damaged.

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

[0044] The first interface is set at both ends of each guardrail monitoring cable. On the one hand, the first interface is connected one-to-one with the internal cable core of the main monitoring cable or the upstream guardrail monitoring cable, and on the other hand, it is matched and connected with the first interface of the downstream guardrail to achieve connectivity with the downstream guardrail monitoring cable.

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

[0046] The third interface is used to cooperate with the first interface of the last guardrail to connect the monitoring line corresponding to the last guardrail in the guardrail monitoring cable to the common line.

[0047] Specifically, a guardrail monitoring cable is laid for each anti-collision guardrail, and each guardrail monitoring cable needs to be tightened and fixed on the anti-collision guardrail. A first interface is set at both ends of the guardrail, and the two ends of the monitoring cable are connected to the first interfaces at both ends in turn. A second interface and a third interface are set to connect the first interfaces of adjacent guardrails to form a multi-core monitoring cable that runs through all anti-collision guardrails, so that the common line in the multi-core monitoring cable runs through the entire road. The second interface is used to connect one end of the guardrail monitoring line with the common line in the guardrail monitoring cable to which it belongs, and the other end is connected to the monitoring line corresponding to the number of the traffic guardrail in the guardrail detection cable. This embodiment also includes a third interface, which is used to connect the monitoring line corresponding to the first interface of the last guardrail to the common line. When one end of the common line in the multi-core monitoring line from the control platform to the anti-collision guardrail is connected to the positive pole of the control platform power supply, the other end is connected to the monitoring line L2-9 of each guardrail, forming a monitoring loop corresponding to each anti-collision guardrail, where 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 anti-collision guardrail. In the present invention, the monitoring circuits of each guardrail are set in parallel. When the voltage of a monitoring circuit suddenly changes, it means that the monitoring line is disconnected and the guardrail is deformed under the action of external force. At this time, the control platform can locate the position of each guardrail that has been hit, and notify the maintenance personnel to handle it through the alarm module.

[0048] As a preferred embodiment of the present invention, for the guardrails arranged at the edge, the corresponding guardrail monitoring lines are also extended to the traffic isolation column, and are arranged in a cross shape on the outer surface of the traffic isolation column and fixed to the ground, so as to monitor whether the traffic isolation column is deformed. Figure 2-3 shown.

[0049] The guardrail monitoring line extends to the isolation column, is arranged in a cross shape on the outer surface of the isolation column, and is connected to the guardrail detection cable through the fourth interface. When the system monitors the last guardrail, it can also monitor the status of the isolation column. There is no need to set up a new isolation solution separately.

[0050] The terminal board includes a first terminal and a second terminal. One side of the first terminal is connected to the common line of the multi-core monitoring cable, and the other side is connected to the positive pole of the DC power supply. One side of the second terminal is connected to a monitoring line of the multi-core monitoring cable, and the other side is connected to an electronic voltmeter through a matrix switching switch.

[0051] Specifically, the system power supply uses a DC uninterruptible power supply, one electrode is connected to the common line, and the other electrode is connected to the electronic voltmeter. According to the needs of road isolation, the guardrail is divided into several parts, each of which needs to be numbered, named, and marked with the number of meters from the monitoring starting point. On the system platform side, each conductor of the multi-core cable needs to be fixed to the terminal board according to the common line and the monitored guardrail.

[0052] The matrix switching switch is used to connect each guardrail monitoring line with the electronic voltmeter in sequence.

[0053] Specifically, the matrix switch input is connected to the terminal board, connecting each wire of the multi-core cable. The matrix switch consists of a series of electronic switches that can be quickly closed or opened under the command of the control module, thereby connecting each monitoring path in sequence.

[0054] During specific implementation, when the system starts running, the control module will send instructions to the matrix switching switch according to the preset program, which can monitor multiple monitoring lines one by one in a short time, greatly improving the monitoring efficiency.

[0055] As a preferred implementation, the matrix switching switch is tightly integrated with other components such as the terminal board, electronic voltmeter, and control platform. This integrated design makes the system respond more quickly and intelligently. Through actual application tests, the system successfully achieved uninterrupted monitoring of multiple monitoring intervals using the matrix switching switch, significantly improving the real-time and accuracy of guardrail monitoring.

[0056] The electronic voltmeter is used to judge the on / off state of the corresponding guardrail monitoring line according to the voltage output by the guardrail monitoring line. The electronic voltmeter is connected to the output end of the matrix switcher, the negative pole of the DC power supply and the alarm module.

[0057] Specifically, the electronic voltmeter determines the on / off status of each monitoring line by monitoring the voltage change output by the matrix switching module. When the voltage level of a line is abnormal, the control platform immediately receives the signal. The control module activates the fault alarm based on the abnormal voltage signal to ensure fast and accurate processing of alarm information.

[0058] The control platform is used to control the matrix switching switch to connect the designated guardrail monitoring line to the electronic voltmeter on the one hand, and to control the alarm module to issue an alarm message when the voltage is abnormal.

[0059] The alarm module communicates with the traffic command center through a 5G router and sends out alarm information in a timely manner.

[0060] The present invention also discloses a road isolation guardrail collision accurate positioning system, which is implemented based on the above system and includes the following steps:

[0061] S1. Arrange anti-collision guardrails according to the requirements of road traffic safety isolation, connect the main monitoring cable and the monitoring cables of each guardrail; record the number and location information of the anti-collision guardrail; tension and arrange the guardrail monitoring cable on each section of the anti-collision guardrail to ensure that the guardrail monitoring cable will be interrupted when the anti-collision guardrail is deformed;

[0062] S2. Use the second interface to connect the monitoring cables of each guardrail, and connect the guardrail monitoring line of the current guardrail to the common line;

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

[0064] S4, after the system is powered on, each monitoring line of the multi-core monitoring cable is monitored in sequence according to the numbering sequence through the matrix switcher at a fixed period. If it is determined that a monitoring line is disconnected, S5 is executed, otherwise S4 is executed;

[0065] S5. Obtain the number of the monitoring line in the disconnected section, retrieve the guardrail position corresponding to the monitoring line with the number, and assign maintenance through the command center.

[0066] As for the method for accurately locating a road isolation guardrail that has been hit of the present invention, since it corresponds to a system for accurately locating a road isolation guardrail that has been hit in the above embodiment, the description is relatively simple. For relevant similarities, please refer to the description of the system for accurately locating a road isolation guardrail that has been hit in the above embodiment, 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 invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A road isolation guardrail collision accurate positioning system, characterized in that: include: A main monitoring cable, the main monitoring cable includes a common line and monitoring lines, the number of the monitoring lines is equal to the number of traffic barriers to be detected, the traffic barriers are numbered in sequence according to the arrangement order, and the corresponding monitoring lines are numbered in sequence; Guardrail monitoring cable, the guardrail monitoring cable is arranged in tension along the horizontal edge of the traffic guardrail, the inner cable core of the guardrail detection cable is arranged in the same manner as the main monitoring cable, and when the guardrail is impacted and deformed or displaced, the guardrail monitoring cable breaks; An interface device, the interface device comprising a first interface, a second interface and a third interface, wherein: The first interface is provided at both ends of each guardrail monitoring cable, and the first interface realizes one-to-one connection of the inner 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 set up with a connection mode according to the number of the monitoring guardrail: on the one hand, each monitoring line and common line in the first interface of the upstream guardrail is connected to each monitoring line and common line in the adjacent downstream guardrail in a one-to-one correspondence; on the other hand, according to the number of the guardrail to which it belongs, the monitoring line corresponding to the number of the upstream guardrail is connected to the common line. The third interface is used to connect to the downstream first interface of the last guardrail, so as to connect the monitoring line corresponding to the last guardrail number with the common line; A terminal board, the terminal board 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 pole of the DC power supply, and the second terminal is connected to a monitoring line of the main monitoring cable on one side according to the monitoring line numbering sequence, and the other side is connected to the electronic voltmeter through a matrix switching switch; A matrix switching switch is used to connect each monitoring line to the electronic voltmeter in sequence; An electronic voltmeter, used to judge the on / off status of the corresponding guardrail monitoring line according to the voltage value output by the guardrail monitoring line, wherein the positive electrode of the electronic voltmeter is connected to the matrix switcher, and the negative electrode is connected to the negative electrode 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 an alarm message when the voltage is abnormal.

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

3. The road isolation guardrail collision accurate positioning system according to claim 2 is characterized in that: The alarm module is connected to the traffic command center through a 5G router.

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

5. A road isolation guardrail collision accurate positioning system, based on the system according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Arrange anti-collision guardrails according to the requirements of road traffic safety isolation, connect the main monitoring cable and the monitoring cables of each guardrail; record the number and location information of the anti-collision guardrail; tension and arrange the guardrail monitoring cable on each section of the anti-collision guardrail to ensure that the guardrail monitoring cable will be interrupted when the anti-collision guardrail is deformed; S2. Use the second interface to connect the monitoring cables of each guardrail, and connect the guardrail monitoring line of the current guardrail to the common line; S3. Connect each monitoring line and common line of the main monitoring cable to the terminal board at the monitoring platform; S4, after the system is powered on, each monitoring line of the multi-core monitoring cable is monitored in sequence according to the numbering sequence through the matrix switcher at a fixed period. 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 position corresponding to the monitoring line with the number, and assign maintenance through the command center.

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