Intelligent spike monitoring system

Abstract

The invention relates to the technical field of intelligent traffic control, in particular to an intelligent spike monitoring system, which is provided with a plurality of spike units, a data acquisition unit, a feature analysis unit and a road management and control coordination unit, and is characterized in that each spike unit is provided with a vibration monitoring module, an electric leakage monitoring circuit and an electrode conduction circuit; a risk representation unit vector is determined through a data acquisition unit, whether an electric leakage risk area exists between adjacent spike units or not is determined, a warning level of the electric leakage risk area is determined through a feature analysis unit, a traffic management and control mode of the electric leakage risk area is selected through a road management and control cooperation unit, and thus the traffic management and control of the electric leakage risk area is realized. According to the invention, the method achieves the timely monitoring and positioning of an area with an electric leakage risk, adaptively adjusts the traffic control mode, and improves the safety and intelligent level of road traffic.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent traffic control, and in particular to an intelligent road stud monitoring system. Background Art

[0002] With the increasing busyness of highway traffic, the number of vehicles and driving speed are constantly increasing, and road traffic safety is facing huge challenges. Road studs can provide visual guidance to help drivers accurately judge the road position and driving direction, thereby reducing the incidence of traffic accidents. Modern highway traffic is developing in the direction of intelligence. The intelligent transportation system covers multiple fields such as traffic signal control, vehicle monitoring, and road condition information collection. Road studs are gradually integrated into this system. However, on urban roads, extreme weather often causes road flooding, and there may be risks of electric leakage. These situations will bring safety hazards to pedestrians. Most of the safety devices on the current market have a single function and cannot fully respond to complex safety challenges. They also lack effective positioning and immediate warning mechanisms. Therefore, solving the safety hazards brought by extreme weather and improving the safety and intelligence level of highway traffic are technical issues that need to be solved urgently.

[0003] For example, the Chinese patent application publication number: CN115359667A, the invention discloses a road condition detection method and system based on intelligent road spikes, including a number of road spike units arranged adjacently, the road spike units include a number of sub-road spikes arranged in the manner of road guide lines and a local service unit connected to the sub-road spikes by signal; the sub-road spikes are distributed in a grid-like manner, so that the sub-road spikes can obtain the driving data of the vehicle when it is driving on the road; the control unit is used to exchange information with the local service unit and the monitoring unit, and control the sub-road spikes through the local service unit; the monitoring unit is used to track the video monitoring of the abnormal driving section of the vehicle according to the information provided by the control unit. This application uses sub-road spikes to form a road spike unit, and uses the sub-road spikes to detect the driving position of the vehicle, and then accumulates the trajectory according to these positions and times, and then uses the road spike unit to combine the entire trajectory as driving data, which can be used to calculate the driving speed, line-crossing conditions, etc.

[0004] The prior art still has the following problems:

[0005] Existing technologies do not take into account that extreme weather on urban roads may cause road flooding, which in turn may bring the risk of electric leakage and create safety hazards. Existing technologies cannot timely monitor and locate areas with leakage risks, and cannot adaptively adjust traffic control methods, affecting the safety and intelligence level of highway traffic. Summary of the invention

[0006] To this end, the present invention provides an intelligent road stud monitoring system to overcome the problems that the prior art cannot timely monitor and locate areas with leakage risks and cannot adaptively adjust the traffic control method.

[0007] To achieve the above object, the present invention provides an intelligent road stud monitoring system, comprising:

[0008] A plurality of spike units, each of which comprises a shell, a grounding electrode arranged at the bottom of the shell, and a vibration monitoring module arranged inside the shell for monitoring vibration of the shell;

[0009] Wherein, a plurality of exposed electrodes are arranged on the top surface of the shell, each of which is connected to the grounding electrode to form a leakage monitoring circuit, and each of which is connected to each other to form an electrode conduction circuit;

[0010] a data acquisition unit connected to each road spike unit, for determining a risk characterization unit vector according to the voltage of each leakage monitoring circuit in the road spike unit, and determining whether there is a leakage risk area between adjacent road spike units according to the risk characterization unit vectors of adjacent road spike units;

[0011] A feature analysis unit, which is connected to the data acquisition unit and the plurality of spike units, respectively, and is used to determine the warning level of the leakage risk area according to the vibration change of the adjacent spike units in each leakage risk area;

[0012] A road control coordination unit is connected to the feature analysis unit and is used to select a traffic control method for the leakage risk area according to the warning level, including:

[0013] A prohibited driving area is defined according to the positions of adjacent road spike units in the leakage risk area, and the size of the prohibited driving area is determined according to the angle between the risk characterization unit vectors of adjacent road spike units;

[0014] Alternatively, a speed limit area is defined according to the positions of adjacent road spike units in the leakage risk area, and the speed limit value of the speed limit area is determined according to the resistance change frequency of the electrode conduction circuit of the adjacent road spike units.

[0015] Furthermore, the data acquisition unit is used to determine a risk characterization unit vector, wherein:

[0016] The data acquisition unit pre-acquires the voltage difference of each leakage monitoring circuit in the road spike unit, determines the exposed electrode corresponding to the voltage difference with the largest value as the vector end point of the risk characterization unit vector, determines the center point of the road spike unit where the exposed electrode is located as the vector starting point of the risk characterization unit vector, and draws the risk characterization unit vector of the road spike unit.

[0017] Furthermore, the data acquisition unit is used to determine whether there is a leakage risk area between adjacent spike units, wherein:

[0018] The data acquisition unit acquires component vectors of the risk characterization unit vectors corresponding to adjacent road spike units; if the component vectors of the risk characterization unit vectors of the adjacent road spike units meet the leakage characterization condition, the data acquisition unit determines that there is a leakage risk area between the adjacent road spike units;

[0019] If the component vectors of the risk characterization unit vectors of adjacent road spike units do not meet the leakage characterization condition, the data acquisition unit determines that there is no leakage risk area between the adjacent road spike units.

[0020] Furthermore, the leakage characterization condition is that the risk characterization unit vectors corresponding to adjacent spike units contain a characteristic component vector group, and the characteristic component vector group includes two vectors whose directions are in opposite directions.

[0021] Furthermore, the characteristic analysis unit is used to determine the warning level of the leakage risk area, wherein:

[0022] If the vibration changes of adjacent spike units in the leakage risk area meet the speed limit condition, the feature analysis unit determines that the warning level of the leakage risk area is a non-explicit abnormal warning level;

[0023] If the vibration changes of adjacent spike units in the leakage risk area do not meet the speed limit condition, the feature analysis unit determines that the warning level of the leakage risk area is an explicit abnormal warning level.

[0024] Furthermore, the speed limit condition is that the vibration change characterization quantity of adjacent road spike units in the leakage risk area does not exceed a preset vibration change characterization quantity threshold.

[0025] Furthermore, the road control coordination unit is used to select a method for traffic control in the leakage risk area, wherein:

[0026] If the warning level is an explicit abnormal warning level, the method of selecting traffic control for the leakage risk area is to define a prohibited area according to the positions of adjacent road spike units in the leakage risk area, and the size of the prohibited area is determined according to the angle between the risk characterization unit vectors of adjacent road spike units;

[0027] If the warning level is a non-explicit abnormal warning level, the method of traffic control for the leakage risk area is to define a speed limit area according to the positions of adjacent road spike units in the leakage risk area, and the speed limit value of the speed limit area is determined according to the resistance change frequency of the electrode conduction circuit of the adjacent road spike units.

[0028] Furthermore, the road control coordination unit is used to determine the prohibited area, wherein:

[0029] The road control coordination unit determines the midpoint of the line connecting the positions of adjacent road stud units in the leakage risk area as the dot of the prohibited area;

[0030] The area radius of the prohibited area is negatively correlated with the angle between the risk characterization unit vectors of adjacent road spike units in the leakage risk area.

[0031] Furthermore, the road control coordination unit is used to define speed limit areas, wherein:

[0032] The road control coordination unit determines the midpoint of the line connecting the positions of the road stud units as the center of the speed limit area, and demarcates the speed limit area with a preset side length value.

[0033] Furthermore, the road control coordination unit is further used to determine the maximum value of the resistance change frequency of each electrode conduction circuit of adjacent road stud units in the leakage risk area, and determine the speed limit value of the speed limit area according to the maximum value of the resistance change frequency;

[0034] The speed limit value is negatively correlated with the maximum value of the resistance change frequency.

[0035] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention sets a plurality of road spike units, a data acquisition unit, a feature analysis unit and a road control coordination unit, sets a vibration monitoring module, a leakage monitoring circuit and an electrode conduction circuit in the road spike unit, determines the risk characterization unit vector and determines whether there is a leakage risk area between adjacent road spike units through the data acquisition unit, determines the warning level of the leakage risk area through the feature analysis unit, and selects the way of traffic control for the leakage risk area through the road control coordination unit, thereby realizing timely monitoring and positioning of the area with leakage risk, adaptively adjusting the traffic control method, and improving the safety and intelligence level of highway traffic.

[0036] In particular, the present invention determines the risk characterization unit vector through the voltage of each leakage monitoring circuit in the road spike unit. It can be understood that when leakage occurs, the current will flow from the leakage point to the earth, forming a specific electric field distribution around the leakage point. The difference in the distance between the road spike unit and the leakage point will lead to the difference in the voltage difference between the top detection electrode and the bottom grounding electrode. The leakage current path between the detection electrode far away from the leakage point and the grounding electrode is longer, the resistance is larger, and the voltage difference is relatively large. By comparing the voltage difference between the detection electrode and the grounding electrode, the position of the leakage point relative to the road spike can be determined, thereby realizing timely monitoring and positioning of areas with leakage risks, thereby improving the safety and intelligence level of highway traffic.

[0037] In particular, the present invention determines whether there is a leakage risk area between adjacent road spike units through the risk characterization unit vectors of adjacent road spike units. It can be understood that when the opposite direction components of the risk characterization unit vectors of adjacent road spike units point to each other, it indicates that there is a superposition of electric field strength components between the two road spikes. The vector-based method provides a quantitative and scientific means for judging the leakage risk between adjacent road spikes, thereby realizing timely monitoring and positioning of areas with leakage risks, and improving the safety and intelligence level of highway traffic.

[0038] In particular, the present invention determines the warning level of the leakage risk area by the vibration change of the adjacent road spike units in each leakage risk area. It can be understood that when the vehicle passes by the road spike at a relatively close distance, the vibration of the road spike unit is very obvious, while when the distance is relatively far, the vibration amplitude is relatively small. When the vibration amplitude is relatively small, it indicates that the distance between the vehicle or pedestrian and the road spike unit is relatively far and the frequency of passing by is relatively low. When the vibration amplitude is relatively obvious, it indicates that the distance between the vehicle or pedestrian and the road spike unit is relatively close and the frequency of passing by is relatively frequent. The warning level of the leakage risk area is determined by the vibration change of the adjacent road spike units in each leakage risk area, thereby realizing timely monitoring and positioning of the area with leakage risk, dividing the leakage risk area into warning levels for subsequent processing, and improving the safety and intelligence level of highway traffic.

[0039] In particular, the present invention selects the method of demarcating a no-travel zone as the way to control traffic in the leakage risk area under the condition of the explicit abnormal warning level. It can be understood that under the condition of the explicit abnormal warning level, the distance between the vehicle flow and the road stud unit located near the leakage risk area is relatively close, the traffic volume is relatively large, the waterproof structure and the wire insulation layer around the road stud are continuously subjected to relatively large pressure, and the frequent passing of vehicles will generate vibrations, impact forces, and possible splashing of accumulated water, which will further aggravate the degree of damage to the waterproof structure and the wire insulation layer. In this case, the leakage risk is at a very high level, and the consequences of leakage are very serious, which will not only cause greater damage to road facilities, but also endanger the safety of passing vehicles and pedestrians, and need to be prevented. Traffic control should be carried out in areas with risk of electric leakage. Although current limiting can reduce the pressure of vehicles on the road stud area, there are still a certain number of vehicles entering the area, and there is still a risk of causing electric leakage accidents. Slowing down and driving slowly cannot completely eliminate the damage to the fragile structure around the road studs when vehicles pass by. The demarcation of no-driving areas can minimize the impact of vehicles on the risk of electric leakage, prevent further damage to the waterproof structure and the occurrence of electric leakage accidents caused by vehicle driving, and facilitate maintenance personnel to carry out timely and efficient maintenance of the risk of electric leakage. Demarcating no-driving areas is a more cautious and effective way, and thus, it realizes the adaptive adjustment of traffic control methods and improves the safety and intelligence level of highway traffic.

[0040] In particular, under the condition of non-explicit abnormal warning level, the present invention selects the method of demarcating speed limit area to control the traffic in the leakage risk area. It can be understood that even if the traffic flow is small under the condition of non-explicit abnormal warning level, vehicles will still produce certain pressure and impact on the road spikes when passing through the leakage risk area. Vehicles traveling at high speed will produce greater impact force, which will increase the risk of leakage. Speed ​​limit can reduce the impact force of the vehicle and reduce the physical damage to the road spikes and their auxiliary structures, thereby avoiding further deterioration of the leakage situation. When the vehicle speed is too fast, the wheels are likely to splash the accumulated water on the ground. In the case of a leakage area, if the accumulated water splashes onto the damaged insulation layer of the wire or the connection part of the road spike, the risk of leakage will increase. By setting up speed limit areas, the height and range of splashing water can be reduced, and the possibility of aggravation of leakage problems caused by water accumulation can be reduced. Under the non-explicit abnormal warning level, completely prohibiting traffic will lead to a waste of traffic resources. Demarcating speed limit areas can allow vehicles to continue to use the road under the premise of ensuring a certain degree of safety, meet basic traffic needs, and avoid causing excessive interference to the surrounding traffic network. Speed ​​limit measures have a lower degree of restriction on traffic than prohibition measures. This not only takes into account the possible safety hazards in leakage risk areas, but also prevents traffic from being paralyzed due to excessive control. In turn, it realizes the adaptive adjustment of traffic control methods and improves the safety and intelligence level of highway traffic.

[0041] In particular, the present invention determines the prohibited driving area through the positions of the adjacent road spike units in the leakage risk area and the risk characterization unit vectors of the road spike units. It can be understood that the midpoint of the line connecting the positions of the road spike units can reasonably represent the central position of the leakage risk area in space. Taking the midpoint of the line connecting the positions of the road spike units as the center of the circle can ensure that the prohibited driving area can effectively cover the core area where leakage may occur, avoiding missing high-risk points. When the angle between the risk characterization unit vectors is small, the leakage direction is relatively concentrated, and the leakage source is relatively concentrated. This concentrated leakage situation will cause the leakage risk to increase rapidly within a smaller angle range, causing the leakage area to extend further in the concentrated direction. Therefore, a larger radius of the prohibited driving area is required to ensure safety. When the angle between the risk characterization unit vectors is large, the direction of the leakage current is relatively dispersed, and the leakage source is not too concentrated. In this case, the leakage energy is relatively dispersed in all directions, and the extension range of the leakage risk area on the plane is relatively small, so the area radius of the prohibited driving area can be smaller, thereby realizing an adaptive adjustment method of traffic control and improving the safety and intelligence level of highway traffic.

[0042] In particular, the present invention determines the speed limit value of the speed limit area by the resistance change frequency of the electrode conduction circuit of adjacent road spike units. It can be understood that when a vehicle passes through a wading section, the fluctuation of the water surface will change the contact state of the electrode conduction circuit between the road spikes, thereby causing the resistance to change. The greater the traffic flow, the higher the frequency of the resistance change. For a large traffic flow, a lower speed limit value needs to be set to reduce the speed of the vehicle and reduce the splashing of charged water droplets when the vehicle passes through the wading section to expand the scope of leakage influence. In addition, an adaptive adjustment method of traffic control is realized, which improves the safety and intelligence level of highway traffic. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a functional block diagram of the intelligent road spike monitoring system according to an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of the structure of a spike unit according to an embodiment of the present invention;

[0045] Figure 3 A schematic diagram of a data acquisition unit according to an embodiment of the present invention determining whether there is a leakage risk area between adjacent spike units;

[0046] Figure 4 A logic flow chart of determining the warning level of a leakage risk area by a feature analysis unit in an embodiment of the present invention;

[0047] In the figure, 1. shell; 2. exposed electrode; 3. warning indicator light; 4. solar cell panel; 5. grounding electrode. DETAILED DESCRIPTION

[0048] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0050] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0051] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] See also Figure 1 as well as Figure 2 As shown, Figure 1 is a functional block diagram of the intelligent road spike monitoring system according to an embodiment of the present invention. Figure 2 The following is a schematic diagram of the structure of a road spike unit according to an embodiment of the present invention. An intelligent road spike monitoring system according to the present invention includes:

[0053] A plurality of spike units, each of which comprises a housing 1, a grounding electrode 5 arranged at the bottom of the housing 1, and a vibration monitoring module arranged inside the housing 1 for monitoring vibration of the housing;

[0054] Among them, a plurality of exposed electrodes 2 are arranged on the top surface of the shell 1, each of which is connected to the grounding electrode 5 to form a leakage monitoring circuit, and each of the exposed electrodes is connected to each other to form an electrode conduction circuit;

[0055] Specifically, in implementation, the vibration monitoring module can be an accelerometer. When the road spike is affected by external factors, such as vibration and impact generated by a passing vehicle, the vibration generated by the road spike shell will be transmitted to the accelerometer inside the road spike shell. The greater the vibration amplitude of the shell, the greater the acceleration monitored by the accelerometer inside the road spike shell. Measuring the vibration of the structure by using a built-in accelerometer is a prior art and will not be described in detail here.

[0056] Specifically, the leakage monitoring circuit conducts the exposed electrode 2 with the ground electrode 5 , and connects a voltage sensor to obtain the voltage difference between each exposed electrode and the ground electrode 5 , which will not be described in detail here.

[0057] Specifically, the electrode conduction circuit connects the exposed electrodes in pairs, and connects the current sensor to obtain the current signal information of the electrode conduction circuit. The frequency of the resistance change is obtained by the data processor using the fast Fourier transform signal algorithm. The data processor can be a microprocessor, a processor used in a computer, etc., which will not be repeated here.

[0058] A data acquisition unit connected to each road spike unit, for determining a risk characterization unit vector according to the voltage of each leakage monitoring circuit in the road spike unit, and determining whether there is a leakage risk area between adjacent road spike units according to the risk characterization unit vectors of adjacent road spike units, and at the same time, the warning indicator lights 3 of the adjacent road spike units in the leakage risk area light up;

[0059] Specifically, the present invention does not limit the specific structure of the data acquisition unit. Preferably, it can be a microprocessor, a processor used in a computer, etc. The risk characterization unit vector is determined by voltage and the leakage risk area is judged, which will not be repeated here.

[0060] A feature analysis unit, which is connected to the data acquisition unit and the plurality of spike units, respectively, and is used to determine the warning level of the leakage risk area according to the vibration change of the adjacent spike units in each leakage risk area;

[0061] Specifically, the present invention does not limit the specific structure of the feature analysis unit. Preferably, it can be a microprocessor, a processor used in a computer, etc., which obtains the vibration change of the spike unit to determine the warning level of the leakage risk area, which will not be repeated here.

[0062] A road control coordination unit is connected to the feature analysis unit and is used to select a traffic control method for the leakage risk area according to the warning level, including:

[0063] A prohibited driving area is defined according to the positions of adjacent road spike units in the leakage risk area, and the size of the prohibited driving area is determined according to the angle between the risk characterization unit vectors of adjacent road spike units;

[0064] Alternatively, a speed limit area is defined according to the positions of adjacent road spike units in the leakage risk area, and the speed limit value of the speed limit area is determined according to the resistance change frequency of the electrode conduction circuit of the adjacent road spike units.

[0065] Specifically, the present invention does not limit the specific structure of the road control coordination unit. Preferably, it can be composed of logic components. The logic components can be field programmable logic components, microprocessors, processors used in computers, etc. The method of traffic control in the leakage risk area is selected according to the warning level, which will not be repeated here.

[0066] Specifically, the data acquisition unit is used to determine a risk characterization unit vector, wherein:

[0067] The data acquisition unit obtains the voltage difference of each leakage monitoring circuit in the road spike unit in advance, determines the exposed electrode 2 corresponding to the voltage difference with the largest value as the vector end point of the risk characterization unit vector, determines the center point of the road spike unit where the exposed electrode 2 is located as the vector starting point of the risk characterization unit vector, and draws the risk characterization unit vector of the road spike unit.

[0068] Specifically, the present invention determines the risk characterization unit vector through the voltage of each leakage monitoring circuit in the road spike unit. It can be understood that when leakage occurs, the current will flow from the leakage point to the earth, forming a specific electric field distribution around the leakage point. The difference in the distance between the road spike unit and the leakage point will lead to the difference in the voltage difference between the top detection electrode and the bottom grounding electrode. The leakage current path between the detection electrode far away from the leakage point and the grounding electrode is longer, the resistance is larger, and the voltage difference is relatively large. By comparing the voltage difference between the detection electrode and the grounding electrode, the position of the leakage point relative to the road spike can be determined, thereby realizing timely monitoring and positioning of areas with leakage risks, thereby improving the safety and intelligence level of highway traffic.

[0069] Specifically, see Figure 3 As shown, it is a schematic diagram of a data acquisition unit according to an embodiment of the present invention determining whether there is a leakage risk area between adjacent spike units, wherein the data acquisition unit is used to determine whether there is a leakage risk area between adjacent spike units, wherein:

[0070] The data acquisition unit acquires the component vectors of the risk characterization unit vectors corresponding to the adjacent spike units;

[0071] If the component vectors of the risk characterization unit vectors of adjacent road spike units meet the leakage characterization condition, the data acquisition unit determines that there is a leakage risk area between the adjacent road spike units;

[0072] If the component vectors of the risk characterization unit vectors of adjacent road spike units do not meet the leakage characterization condition, the data acquisition unit determines that there is no leakage risk area between the adjacent road spike units.

[0073] Specifically, the leakage characterization condition is that the risk characterization unit vectors corresponding to adjacent spike units contain a characteristic component vector group, and the characteristic component vector group includes two vectors whose directions are in opposite directions.

[0074] For more details, please refer to Figure 3As shown, vector A and vector B are risk characterization unit vectors of adjacent road spike units, vector A1 and vector A2 are component vectors of vector A, and vector B1 and vector B2 are component vectors of vector B. Vector A1 and vector B1 are a group of characteristic component vectors with their vector directions facing each other. Thus, the risk characterization unit vectors of adjacent road spike units contain characteristic component vectors. Therefore, there is a leakage risk area between adjacent road spike units.

[0075] Specifically, the present invention determines whether there is a leakage risk area between adjacent road spike units through the risk characterization unit vectors of adjacent road spike units. It can be understood that when the opposite direction components of the risk characterization unit vectors of adjacent road spike units point to each other, it indicates that there is a superposition of electric field strength components between the two road spikes. The vector-based method provides a quantitative and scientific means for judging the leakage risk between adjacent road spikes, thereby realizing timely monitoring and positioning of areas with leakage risks, thereby improving the safety and intelligence level of highway traffic.

[0076] Specifically, see Figure 4 As shown, it is a logic flow chart of the feature analysis unit determining the warning level of the leakage risk area in an embodiment of the present invention, wherein the feature analysis unit is used to determine the warning level of the leakage risk area, wherein:

[0077] If the vibration changes of adjacent spike units in the leakage risk area meet the speed limit condition, the feature analysis unit determines that the warning level of the leakage risk area is a non-explicit abnormal warning level;

[0078] If the vibration changes of adjacent spike units in the leakage risk area do not meet the speed limit condition, the feature analysis unit determines that the warning level of the leakage risk area is an explicit abnormal warning level.

[0079] Specifically, the speed limit condition is that the vibration change characterization quantity of adjacent road spike units in the leakage risk area does not exceed a preset vibration change characterization quantity threshold.

[0080] Specifically, the preset vibration change characterization threshold can be the fluctuation of the acceleration value of the accelerometer inside the road spike shell. Preferably, the vibration change characterization threshold can be set to 3m / s on urban trunk roads. 2 .

[0081] Specifically, the present invention determines the warning level of the leakage risk area by the vibration change of the adjacent road spike units in each leakage risk area. It can be understood that when a vehicle passes directly over the road spike, the vibration of the road spike unit is very obvious, while when the distance is far, the vibration amplitude is small. When the vibration amplitude is small, it indicates that the distance between the vehicle or pedestrian and the road spike unit is far and the frequency of passing is low. When the vibration amplitude is more obvious, it indicates that the distance between the vehicle or pedestrian and the road spike unit is close and the frequency of passing is frequent. The warning level of the leakage risk area is determined by the vibration change of the adjacent road spike units in each leakage risk area, thereby realizing timely monitoring and positioning of the area with leakage risk, dividing the leakage risk area into warning levels for subsequent processing, and improving the safety and intelligence level of highway traffic.

[0082] Specifically, the road control coordination unit is used to select a method for traffic control in the leakage risk area, wherein:

[0083] If the warning level is an explicit abnormal warning level, the method of selecting traffic control for the leakage risk area is to define a prohibited area according to the positions of adjacent road spike units in the leakage risk area, and the size of the prohibited area is determined according to the angle between the risk characterization unit vectors of adjacent road spike units;

[0084] If the warning level is a non-explicit abnormal warning level, the method of traffic control for the leakage risk area is to define a speed limit area according to the positions of adjacent road spike units in the leakage risk area, and the speed limit value of the speed limit area is determined according to the resistance change frequency of the electrode conduction circuit of the adjacent road spike units.

[0085] Specifically, under the condition of explicit abnormal warning level, the present invention selects the method of demarcating a no-travel zone as the traffic control method for the leakage risk area. It can be understood that under the condition of explicit abnormal warning level, the distance between the traffic flow and the road stud unit located near the leakage risk area is relatively close, the traffic flow is relatively large, the waterproof structure and the wire insulation layer around the road stud are continuously subjected to relatively large pressure, and the frequent passing of vehicles will generate vibrations, impact forces, and possible splashing of accumulated water, which will further aggravate the degree of damage to the waterproof structure and the wire insulation layer. In this case, the leakage risk is at a very high level, and the consequences of leakage are very serious, which will not only cause greater damage to road facilities, but also endanger the safety of passing vehicles and pedestrians. Traffic control is needed in areas with a risk of electric leakage. Although current limiting can reduce the pressure of vehicles on the road spike area, there are still a certain number of vehicles entering the area, and there is still a risk of causing electric leakage accidents. Slowing down and driving slowly cannot completely eliminate the damage to the fragile structure around the road spikes when vehicles pass by. The demarcation of no-driving areas can minimize the impact of vehicles on the risk of electric leakage, prevent further damage to the waterproof structure and the occurrence of electric leakage accidents caused by vehicle driving, and facilitate maintenance personnel to carry out timely and efficient maintenance of the risk of electric leakage. Demarcating no-driving areas is a more cautious and effective way, and thus, it realizes the adaptive adjustment of traffic control methods and improves the safety and intelligence level of road traffic.

[0086] Specifically, under the condition of non-explicit abnormal warning level, the present invention selects the method of demarcating speed limit area to carry out traffic control in the leakage risk area. It can be understood that even if the traffic flow is small under the condition of non-explicit abnormal warning level, vehicles will still produce certain pressure and impact on the road spikes when passing through the leakage risk area. Vehicles traveling at high speed will produce greater impact force, which will lead to increased risk of leakage. Speed ​​limit can reduce the impact force of vehicles and reduce physical damage to road spikes and their auxiliary structures, thereby avoiding further deterioration of leakage. When the vehicle speed is too fast, the wheels are likely to splash the accumulated water on the ground. In the case of leakage area, if the accumulated water splashes onto the damaged insulation layer of the wire or the connection part of the road spike, the risk of leakage will increase. By setting up speed limit areas, the height and range of splashing water can be reduced, and the possibility of aggravation of leakage problems due to water accumulation can be reduced. Under the non-explicit abnormal warning level, completely prohibiting traffic will lead to a waste of traffic resources. Demarcating speed limit areas can allow vehicles to continue to use the road under the premise of ensuring a certain degree of safety, meet basic transportation needs, and avoid causing excessive interference to the surrounding traffic network. Speed ​​limit measures have a lower degree of restriction on traffic than ban measures. This not only takes into account the possible safety hazards in leakage risk areas, but also prevents traffic from being paralyzed due to excessive control. In addition, it realizes the adaptive adjustment of traffic control methods and improves the safety and intelligence level of highway traffic.

[0087] Specifically, the road control coordination unit is used to determine the prohibited area, wherein:

[0088] The road control coordination unit determines the midpoint of the line connecting the positions of adjacent road stud units in the leakage risk area as the dot of the prohibited area;

[0089] The area radius of the prohibited area is negatively correlated with the angle between the risk characterization unit vectors of adjacent road spike units in the leakage risk area.

[0090] Specifically, the present invention determines the prohibited area through the positions of adjacent road spike units in the leakage risk area and the risk characterization unit vectors of the road spike units. It can be understood that the midpoint of the line connecting the positions of the road spike units can reasonably represent the central position of the leakage risk area in space. Taking the midpoint of the line connecting the positions of the road spike units as the center of the circle can ensure that the prohibited area can effectively cover the core area where leakage may occur, avoiding missing high-risk points. When the angle between the risk characterization unit vectors is small, the leakage direction is relatively concentrated, and the leakage source is relatively concentrated. This concentrated leakage situation will cause the leakage risk to increase rapidly within a smaller angle range, causing the leakage area to extend further in the concentrated direction. Therefore, a larger prohibited area radius is required to ensure safety. When the angle between the risk characterization unit vectors is large, the direction of the leakage current is relatively dispersed, and the leakage source is not too concentrated. In this case, the leakage energy is relatively dispersed in all directions, and the extension range of the leakage risk area on the plane is relatively small, so the area radius of the prohibited area can be small, thereby realizing an adaptive adjustment method for traffic control and improving the safety and intelligence level of highway traffic.

[0091] Specifically, the road control coordination unit is used to define speed limit areas, wherein:

[0092] The road control coordination unit determines the midpoint of the line connecting the positions of the road stud units as the center of the speed limit area, and demarcates the speed limit area with a preset side length value.

[0093] Specifically, the preset side length value may be set by those skilled in the art according to the actual road type. Preferably, on urban trunk roads, the side length value may be 30 m.

[0094] Specifically, the road control coordination unit is further used to determine the maximum value of the resistance change frequency of each electrode conduction circuit of adjacent road stud units in the leakage risk area, and determine the speed limit value of the speed limit area according to the maximum value of the resistance change frequency;

[0095] The speed limit value is negatively correlated with the maximum value of the resistance change frequency.

[0096] Specifically, the present invention determines the speed limit value of the speed limit area by the resistance change frequency of the electrode conduction circuit of adjacent road spike units. It can be understood that when a vehicle passes through a wading section, the fluctuation of the water surface will change the contact state of the electrode conduction circuit between the road spikes, thereby causing the resistance to change. The greater the traffic flow, the higher the frequency of the resistance change. For a large traffic flow, a lower speed limit value needs to be set to reduce the speed of the vehicle and reduce the splashing of charged water droplets when the vehicle passes through the wading section to expand the scope of leakage influence. In addition, the adaptive adjustment of the traffic control method is realized, and the safety and intelligence level of highway traffic are improved.

[0097] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0098] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent road spike monitoring system, characterized in that: include: A plurality of spike units, each of which comprises a shell, a grounding electrode arranged at the bottom of the shell, and a vibration monitoring module arranged inside the shell for monitoring vibration of the shell; Wherein, a plurality of exposed electrodes are arranged on the top surface of the shell, each of which is connected to the grounding electrode to form a leakage monitoring circuit, and each of which is connected to each other to form an electrode conduction circuit; a data acquisition unit connected to each road spike unit, for determining a risk characterization unit vector according to the voltage of each leakage monitoring circuit in the road spike unit, and determining whether there is a leakage risk area between adjacent road spike units according to the risk characterization unit vectors of adjacent road spike units; A feature analysis unit, which is connected to the data acquisition unit and the plurality of spike units, respectively, and is used to determine the warning level of the leakage risk area according to the vibration change of the adjacent spike units in each leakage risk area; A road control coordination unit is connected to the feature analysis unit and is used to select a traffic control method for the leakage risk area according to the warning level, including: A prohibited driving area is defined according to the positions of adjacent road spike units in the leakage risk area, and the size of the prohibited driving area is determined according to the angle between the risk characterization unit vectors of adjacent road spike units; Alternatively, a speed limit area is defined according to the positions of adjacent road spike units in the leakage risk area, and the speed limit value of the speed limit area is determined according to the resistance change frequency of the electrode conduction circuit of the adjacent road spike units.

2. The intelligent road spike monitoring system according to claim 1, characterized in that: The data acquisition unit is used to determine a risk characterization unit vector, wherein: The data acquisition unit pre-acquires the voltage difference of each leakage monitoring circuit in the road spike unit, determines the exposed electrode corresponding to the voltage difference with the largest value as the vector end point of the risk characterization unit vector, determines the center point of the road spike unit where the exposed electrode is located as the vector starting point of the risk characterization unit vector, and draws the risk characterization unit vector of the road spike unit.

3. The intelligent road spike monitoring system according to claim 2, characterized in that: The data acquisition unit is used to determine whether there is a leakage risk area between adjacent spike units, wherein: The data acquisition unit acquires the component vectors of the risk characterization unit vectors corresponding to the adjacent spike units; If the component vectors of the risk characterization unit vectors of adjacent road spike units meet the leakage characterization condition, the data acquisition unit determines that there is a leakage risk area between the adjacent road spike units; If the component vectors of the risk characterization unit vectors of adjacent road spike units do not meet the leakage characterization condition, the data acquisition unit determines that there is no leakage risk area between the adjacent road spike units.

4. The intelligent road spike monitoring system according to claim 3 is characterized in that: The leakage characterization condition is that the risk characterization unit vectors corresponding to adjacent road spike units contain a characteristic component vector group, and the characteristic component vector group includes two vectors whose directions are in opposite directions.

5. The intelligent road spike monitoring system according to claim 4, characterized in that: The characteristic analysis unit is used to determine the warning level of the leakage risk area, wherein: If the vibration changes of adjacent spike units in the leakage risk area meet the speed limit condition, the feature analysis unit determines that the warning level of the leakage risk area is a non-explicit abnormal warning level; If the vibration changes of adjacent spike units in the leakage risk area do not meet the speed limit condition, the feature analysis unit determines that the warning level of the leakage risk area is an explicit abnormal warning level.

6. The intelligent road stud monitoring system according to claim 5, characterized in that: The speed limit condition is that the vibration change characterization quantity of adjacent road spike units in the leakage risk area does not exceed a preset vibration change characterization quantity threshold.

7. The intelligent road spike monitoring system according to claim 6, characterized in that: The road control coordination unit is used to select a method for traffic control in the leakage risk area, wherein: If the warning level is an explicit abnormal warning level, the method of selecting traffic control for the leakage risk area is to define a prohibited area according to the positions of adjacent road stud units in the leakage risk area; If the warning level is a non-explicit abnormal warning level, the method selected for traffic control in the leakage risk area is to define a speed limit area according to the positions of adjacent road stud units in the leakage risk area.

8. The intelligent road stud monitoring system according to claim 7, characterized in that: The road control coordination unit is used to determine the prohibited area, wherein: The road control coordination unit determines the midpoint of the line connecting the positions of adjacent road stud units in the leakage risk area as the dot of the prohibited area; The area radius of the prohibited area is negatively correlated with the angle between the risk characterization unit vectors of adjacent road spike units in the leakage risk area.

9. The intelligent road spike monitoring system according to claim 7, characterized in that: The road control coordination unit is used to define speed limit areas, wherein: The road control coordination unit determines the midpoint of the line connecting the positions of the road stud units as the center of the speed limit area, and demarcates the speed limit area with a preset side length value.

10. The intelligent road spike monitoring system according to claim 9, characterized in that: The road control coordination unit is further used to determine the maximum value of the resistance change frequency of each electrode conduction circuit of adjacent road stud units in the leakage risk area, and determine the speed limit value of the speed limit area according to the maximum value of the resistance change frequency; The speed limit value is negatively correlated with the maximum value of the resistance change frequency.

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