CN113903168B - Fault detection method, fault detection device, and computer-readable storage medium - Google Patents
Fault detection method, fault detection device, and computer-readable storage medium Download PDFInfo
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- CN113903168B CN113903168B CN202110945090.1A CN202110945090A CN113903168B CN 113903168 B CN113903168 B CN 113903168B CN 202110945090 A CN202110945090 A CN 202110945090A CN 113903168 B CN113903168 B CN 113903168B
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
Abstract
The application discloses a fault detection method, a fault detection device and a computer readable storage medium, wherein the fault detection method comprises the following steps: acquiring a plurality of second road side units around the first road side unit by using the first position information of the first road side unit, and establishing communication connection between the plurality of second road side units; and in response to that the first road side unit does not receive the first vehicle networking exchange information within the first preset time and at least one second road side unit receives the first vehicle networking exchange information, sending first position information and a detection instruction to the vehicle networking management platform so that the vehicle networking management platform detects the first road side unit. Through mutual detection between a plurality of road side units, whole journey need not artifical the participation and road side unit still can be in the testing process normal operating, not only can not disturb the traffic on the road, can improve the efficiency and the degree of accuracy that detect moreover.
Description
Technical Field
The present application relates to the field of traffic communication technologies, and in particular, to a fault detection method, a fault detection apparatus, and a computer-readable storage medium.
Background
Road Side Units (RSUs) are generally deployed on both sides of a road, and broadcast vehicle networking exchange information, such as traffic light information, construction road sections, collision warning, and the like, to vehicles on the road. In an actual use process, the road side unit may bend and break the antenna due to software bugs, antenna aging, or weather reasons such as wind, and the like, and finally, the vehicle networking exchange information broadcasted by the road side unit to the outside cannot be correctly transmitted to surrounding vehicles. Obviously, some safety information about traffic lights, vehicle collision early warning, construction areas and the like in the road side units plays a crucial role in the safe driving of surrounding vehicles, and the loss of the information may cause very serious vehicle accidents.
At present, fault detection of the road side unit is generally performed in a mode of manual spot inspection at a factory stage or on a site, and detection in the mode needs to be completed by stopping normal operation of the road side unit and then executing a plurality of test instructions. The detection mode has the defects of complicated manual operation and incapability of normal operation of the road side unit during the test. Therefore, a new fault detection method is needed to solve the above problems.
Disclosure of Invention
The technical problem mainly solved by the application is to provide a fault detection method, a fault detection device and a computer readable storage medium, so that a road side unit can normally operate in a detection process and manual operation is not needed in the detection process.
In order to solve the technical problem, the application adopts a technical scheme that: provided is a fault detection method including: obtaining a plurality of second road side units around a first road side unit by using first position information of the first road side unit, and establishing communication connection between the plurality of second road side units; in response to the fact that the first road side unit does not receive the first vehicle networking exchange information within a first preset time and at least one second road side unit receives the first vehicle networking exchange information, the first position information and a detection instruction are sent to a vehicle networking management platform, so that the vehicle networking management platform detects the first road side unit.
Wherein the step of obtaining a plurality of second road side units around the first road side unit by using the first position information includes: acquiring a plurality of target road side units within a preset range around the first road side unit by using the first position information; screening and obtaining the second road side unit positioned in the preset direction of the first road side unit from the plurality of target road side units; wherein the preset directions comprise an east direction, a west direction, a south direction and a north direction.
The method for responding to the first road side unit not receiving the first vehicle networking exchange information within the first preset time and any one of the at least one second road side unit receiving the first vehicle networking exchange information comprises the following steps: acquiring all the Internet of vehicles exchange information received by the plurality of second road side units within second preset time; wherein the Internet of vehicles exchange information is sent by an on-board unit of a vehicle passing each of the second road side units; screening a target vehicle moving towards the first road side unit and the first vehicle networking exchange information sent by the vehicle-mounted unit of the target vehicle by utilizing second position information of the vehicle sending the vehicle networking exchange information; wherein the first Car networking exchange information is sent by an on-Board unit of a target vehicle moving towards the first roadside unit.
Wherein, after the step of sending the first location information and the detection instruction to the car networking management platform so that the car networking management platform detects the first road side unit, the method includes: responding to a backup instruction of the Internet of vehicles management platform, and sending backup information of second Internet of vehicles exchange information sent to a vehicle-mounted unit of the target vehicle after the current moment to the Internet of vehicles management platform; and in response to receiving a backup finishing instruction of the Internet of vehicles management platform, stopping backup and continuously sending the second Internet of vehicles exchange information to the vehicle-mounted unit of the target vehicle.
In order to solve the above technical problem, another technical solution adopted by the present application is: provided is a fault detection method including: in response to receiving first position information and a detection instruction sent by a first road side unit, scheduling a detection device closest to the first road side unit according to the first position information to detect the first road side unit; after the first road side unit obtains a plurality of second road side units around the first road side unit by using the first position information and establishes communication connection with the plurality of second road side units, the first road side unit responds to that the first road side unit does not receive the first vehicle networking exchange information within a first preset time, and at least one second road side unit generates the detection instruction when receiving the first vehicle networking exchange information.
The step of scheduling, according to first position information in the device information, a detection device closest to the first road side unit to detect the first road side unit includes: enabling the detection device to receive second vehicle networking exchange information sent by the first road side unit at a position with a preset distance from the first road side unit; receiving a receiving result of second vehicle networking exchange information returned by the detection device, and judging whether the first road side unit is abnormal at the position of the preset distance according to the receiving result; judging whether all the preset distances go through; if yes, sending a return instruction to the detection device, and sending a backup finishing instruction to the first road side unit; and if not, enabling the detection device to receive second vehicle networking exchange information sent by the first road side unit at another preset distance position from the first road side unit, returning to a receiving result of the second vehicle networking exchange information returned by the detection device, and judging whether the first road side unit is abnormal at the preset distance position according to the receiving result.
Wherein the step of determining whether the first road side unit has an abnormality at the predetermined distance position according to the reception result includes: in response to the detection device not receiving the second vehicle networking exchange information at the predetermined distance position, determining that the first road side unit has an abnormality at the predetermined distance position.
Wherein the step of determining the abnormal position of the first roadside unit according to the reception result further includes: responding to the detection device receiving the second vehicle networking exchange information at the position with the preset distance, and acquiring a first data packet sent by the first road side unit and a second data packet sent by the detection device; the first data packet comprises backup information of first vehicle networking exchange information sent by the first road side unit to a vehicle-mounted unit of a target vehicle, a corresponding position for sending the first vehicle networking exchange information and a time point, and the second data packet comprises the second vehicle networking exchange information received by the detection device, a corresponding position for receiving the second vehicle networking exchange information and a time point; judging whether the coincidence rate between the first data packet and the second data packet is greater than a threshold value; if not, judging that the first road side unit has abnormality at the position of the preset distance.
Wherein the method further comprises: and in response to the detection of the detection device at the plurality of predetermined distances being completed, sending a return instruction to the detection device, and sending an end backup instruction to the first road side unit.
In order to solve the above technical problem, the present application adopts another technical solution: provided is a fault detection device including: the system comprises a first road side unit, a second road side unit, a vehicle networking management platform and a detection device; the first road side unit is respectively connected with the second road side unit, the Internet of vehicles management platform and the detection device, and the Internet of vehicles management platform is respectively connected with the second road side unit and the detection device; the first road side unit, the second road side unit, the internet of vehicles management platform and the detection device are mutually matched to realize the fault detection method in any embodiment.
Wherein, detection device includes unmanned aerial vehicle.
In order to solve the above technical problem, the present application adopts another technical solution: there is provided a computer-readable storage medium storing a computer program for implementing the fault detection method mentioned in any one of the above embodiments.
Different from the situation of the prior art, the beneficial effects of the application are that: the fault detection method provided by the application comprises the following steps: the method comprises the steps that a plurality of second road side units around a first road side unit are obtained through first position information of the first road side unit and are in communication connection with the second road side units, when the first road side unit does not receive first vehicle networking exchange information within a first preset time and at least one second road side unit receives the first vehicle networking exchange information, first position information and a detection instruction are sent to a vehicle networking management platform, and therefore the vehicle networking management platform can detect the first road side unit. Through mutual detection between a plurality of road side units, whole journey need not artifical the participation and road side unit still can be in the testing process normal operating, not only can not disturb the traffic on the road, can improve the efficiency and the degree of accuracy that detect moreover.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. Wherein:
FIG. 1 is a schematic structural diagram of an embodiment of a fault detection device according to the present application;
FIG. 2 is a schematic flow chart diagram illustrating an embodiment of a fault detection method of the present application;
FIG. 3 is a schematic diagram of a corresponding deployment of the fault detection method of FIG. 2;
FIG. 4 is a schematic flow chart of one embodiment of step S1 in FIG. 2;
FIG. 5 is a schematic flow chart of an embodiment before step S2 in FIG. 2;
FIG. 6 is a schematic flow chart of an embodiment after step S5 in FIG. 2;
FIG. 7 is a schematic flow chart diagram of another embodiment after step S31 in FIG. 6;
FIG. 8 is a schematic flow chart diagram illustrating another embodiment of a fault detection method of the present application;
FIG. 9 is a schematic flow chart diagram of one embodiment of step S51 in FIG. 8;
FIG. 10 is a flowchart illustrating an embodiment corresponding to step S61 in FIG. 9;
FIG. 11 is a block diagram of an embodiment of a fault detection system of the present application;
FIG. 12 is a block diagram of an embodiment of a computer-readable storage medium of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a fault detection device according to the present application. The fault detection device comprises a first roadside unit 10, a second roadside unit 12, a vehicle networking management platform 14 and a detection device 16. Specifically, the first roadside unit 10 is connected to the second roadside unit 12, the internet of vehicles management platform 14 and the detection device 16, respectively, and the internet of vehicles management platform 14 is connected to the second roadside unit 12 and the detection device 16, respectively. In the present embodiment, the first roadside unit 10, the second roadside unit 12, the internet of vehicles management platform 14 and the detection device 16 cooperate with each other to implement the fault detection method mentioned in the present application.
In addition, in this embodiment, detection device 16 can include unmanned aerial vehicle, and unmanned aerial vehicle not only does not need the manual work to operate in the testing process, and the road side unit can normal operating moreover, can not cause the interference to the traffic on the road. Of course, in other embodiments, the detection device 16 may also include other devices capable of detecting the rsu, which is not limited in this application.
The fault detection method referred to in the present application is described below from the perspective of the first road side unit.
Referring to fig. 2 and fig. 3 together, fig. 2 is a schematic flow chart of an embodiment of the fault detection method of the present application, and fig. 3 is a schematic deployment diagram corresponding to the fault detection method in fig. 2. Specifically, the fault detection method includes:
s1: and obtaining a plurality of second road side units around the first road side unit by using the first position information of the first road side unit, and establishing communication connection with the plurality of second road side units.
Specifically, in the present embodiment, please refer to fig. 3 and fig. 4, wherein fig. 4 is a schematic flow chart of the step S1 in fig. 2 according to an embodiment. Specifically, step S1 includes:
s10: and acquiring a plurality of target road side units within a preset range around the first road side unit by using the first position information.
As shown in fig. 3, it is assumed that the device to be detected is the first roadside unit a, and specifically, before step S10, the first roadside unit a is powered on and initialized to initialize its modules, for example, cellular 5G, V2X, wired network, and so on. After the initialization is finished, the first road side unit a searches for equipment through a local area network established by a wired network, and finds out a plurality of target road side units and equipment information thereof, such as position information, equipment IDs, IP addresses and the like, within a preset range around the first road side unit a.
S11: and screening and obtaining a second road side unit positioned in the preset direction of the first road side unit from the plurality of target road side units.
Specifically, in the present embodiment, the preset directions include an east direction, a west direction, a south direction, and a north direction. In this embodiment, as shown in fig. 3, the first position information of the first roadside unit a and the position information of the target roadside unit are used to screen and obtain second roadside units, which are respectively located in the east direction, the west direction, the south direction and the north direction of the first roadside unit, and are respectively D, C, B and E. In the present embodiment, as shown in fig. 3, the first road side unit a is communicatively connected to B, C, D and E. In this way, the device information of the intersection most relevant to the first roadside unit a can be obtained, thereby improving the accuracy and efficiency of fault detection of the first roadside unit a.
S2: whether the first road side unit receives the first vehicle networking exchange information or not is judged within first preset time.
Specifically, in this embodiment, the first preset time may be 30 minutes, or may be set to other times, which is not limited herein. In the present embodiment, the first vehicle networking exchange information is a message sent by the on-board unit of the target vehicle moving toward the first roadside unit a, the message including the ID of the target vehicle, the location information, and the time at which the first vehicle networking exchange information is sent.
Specifically, in the present embodiment, please refer to fig. 5, and fig. 5 is a schematic flowchart illustrating an embodiment before step S2 in fig. 2. Specifically, step S2 includes:
s20: and acquiring all the Internet of vehicles exchange information received by the second road side units within second preset time.
Specifically, the in-vehicle network exchange information is transmitted by the in-vehicle unit of the vehicle passing through each second road-side unit. In this embodiment, all the internet of vehicles exchange information within a second preset time is acquired to the second road side unit through the wired network and is stored, and the second preset time may be 10 minutes or may be adjusted to other times, which is not limited herein. And then all the Internet of vehicles exchange information received by the second road side unit is acquired and stored after 10 minutes. Similarly, the first road side unit also receives the vehicle networking exchange information sent by the vehicle-mounted unit of the vehicle within the range of the equipment, and after receiving the information, the first road side unit performs corresponding processing and also records the vehicle networking exchange information.
S21: and screening out the target vehicle moving towards the first road side unit and the first vehicle networking exchange information sent by the vehicle-mounted unit of the target vehicle by utilizing the second position information of the vehicle sending the vehicle networking exchange information.
Specifically, the first internet-of-vehicles exchange information is transmitted by the on-vehicle unit of the target vehicle moving toward the first road-side unit. In the step S20, vehicles that do not move toward the first roadside unit may exist in the vehicles that send the information about the exchange of the internet of vehicles, and these vehicles are not valuable for fault detection, so we need to screen out the target vehicles that move toward the first roadside unit and the information about the exchange of the first internet of vehicles that is sent by the on-board unit of the target vehicle from among these vehicles, so as to provide a basis for determination in the step S2. Therefore, a method for mutually detecting a plurality of road side units can be adopted, so that the efficiency and the accuracy of fault detection are improved.
S3: if yes, the process returns to step S2.
Specifically, if the first road side unit a receives the first vehicle networking exchange information within the first preset time, it is indicated that the first road side unit a is not abnormal, and the received first vehicle networking exchange information is analyzed and stored. The first road side unit a may return to step S2 after sleeping for 20 milliseconds, and continue to detect whether there is an abnormality in the first road side unit a. Of course, the sleep time may be set to other times, and the present application is not limited thereto.
S4: otherwise, judging whether at least one second road side unit receives the first vehicle networking exchange information.
Specifically, if the first road-side unit a does not receive the first vehicle networking exchange information within the first preset time, it is indicated that the first road-side unit a may have an abnormality, and at this time, a step of determining whether at least one second road-side unit (B, C, D, E) receives the first vehicle networking exchange information is performed, so as to perform further accurate detection on the first road-side unit a.
S5: if so, sending the first position information and a detection instruction to the Internet of vehicles management platform so that the Internet of vehicles management platform detects the first road side unit.
Specifically, if the first road side unit a does not receive the first vehicle networking exchange information within the first preset time and at least one second road side unit receives the first vehicle networking exchange information, it is indicated that the first road side unit a is abnormal, at this time, a fault alarm is performed on the vehicle networking management platform, and first position information and a detection instruction are sent to the vehicle networking management platform, so that the vehicle networking management platform detects the first road side unit a.
Specifically, in the present embodiment, please refer to fig. 6, and fig. 6 is a schematic flowchart of an embodiment after step S5 in fig. 2. Specifically, step S5 is followed by:
s30: and judging whether a backup instruction of the Internet of vehicles management platform is received.
S31: if yes, backup information of second vehicle networking exchange information sent to the vehicle-mounted unit of the target vehicle after the current moment is sent to the vehicle networking management platform.
Specifically, if a backup instruction of the internet of vehicles management platform is received, at least one backup of second internet of vehicles exchange information sent to the on-board unit of the target vehicle after the current moment is received, and the backup information is sent to the internet of vehicles management platform, so that the internet of vehicles management platform performs targeted detection on the backup information. The mode of operating like this can make first roadside unit still normal operating, only need with backup message send to car networking management platform can, can not cause the interference to road traffic.
S32: otherwise, it returns to step S30.
Specifically, if the backup instruction of the car networking management platform is not received, it indicates that the car networking management platform does not respond, and the step of judging whether the backup instruction of the car networking management platform is received is returned after the car networking management platform is dormant for 1 second. Of course, the sleep time may be set to other times, and the application is not limited herein.
Referring to fig. 7, fig. 7 is a schematic flowchart illustrating another embodiment after step S31 in fig. 6. Specifically, step S31 is followed by:
s40: and judging whether a backup finishing instruction of the Internet of vehicles management platform is received.
S41: and if so, stopping the backup and continuously sending second vehicle networking exchange information to the vehicle-mounted unit of the target vehicle.
Specifically, if a backup ending instruction of the internet of vehicles management platform is received, it indicates that the detection of the first road side unit is completed, so that the first road side unit stops backup and continues to send second internet of vehicles exchange information to the on-board unit of the target vehicle. Therefore, the first road side unit can continue to normally operate after detection is finished, and no influence is caused on traffic on the road.
S42: otherwise, return to step S31.
Specifically, if the backup finishing instruction of the car networking management platform is not received, it is indicated that the detection of the first road side unit is not finished, at this time, the step of sending the backup information of the second car networking exchange information sent to the on-board unit of the target vehicle after the current time to the car networking management platform is returned, at least one backup of the second car networking exchange information sent to the on-board unit of the target vehicle after the current time is continued, and the backup information is sent to the car networking management platform, so that the car networking management platform performs targeted detection on the backup information.
S6: otherwise, return to step S2.
Specifically, if the first road-side unit a does not receive the first vehicle networking exchange information within the first preset time and all the second road-side units do not receive the first vehicle networking exchange information, it indicates that no first vehicle networking exchange information is sent, the first road-side unit a is not abnormal, and the method may return to step S2 after sleeping for a period of time, where the sleeping time may be the same as the first preset time, and is 30 minutes. Of course, the sleep time may be set to other times, and the application is not limited herein.
Through the design mode, the method for mutually detecting the multiple road side units is adopted, manual participation is not needed in the whole process, the road side units can still normally operate in the detection process, traffic on a road cannot be interfered, and the efficiency and accuracy of fault detection can be improved.
The fault detection method mentioned in the present application is described below from the perspective of a car networking management platform.
Referring to fig. 3 and 8 together, fig. 8 is a schematic flow chart of another embodiment of the fault detection method of the present application. Specifically, the fault detection method includes:
s50: and judging whether the first position information and the detection instruction sent by the first road side unit are received.
As shown in fig. 3, here we still assume that the device to be detected is a first roadside unit a, specifically, after the first roadside unit a obtains a plurality of second roadside units around the first roadside unit a by using the first location information and establishes communication connections with the plurality of second roadside units (B, C, D, E), a detection instruction is generated when the first roadside unit a does not receive the first vehicle networking exchange information within a first preset time and at least one of the second roadside units (B, C, D, E) receives the first vehicle networking exchange information.
S51: and if so, scheduling the detection device closest to the first road side unit according to the first position information to detect the first road side unit.
Specifically, if the first position information and the detection instruction sent by the first roadside unit a are received, it is described that the first roadside unit a may have an abnormality, and further detection is required to notify a maintenance person to perform targeted maintenance. At this time, the detection device F closest to the first road side unit is scheduled according to the first position information to detect the first road side unit A. Detection device F can be for unmanned aerial vehicle, uses unmanned aerial vehicle to detect it, and whole journey need not artifical the participation and the road side unit still can be in testing process normal operating, not only can not disturb the traffic on the road, can improve the efficiency and the degree of accuracy that detect moreover. Of course, the detection device F may also be another detection device, and the application is not limited herein.
Specifically, in the present embodiment, please refer to fig. 9, wherein fig. 9 is a flowchart illustrating an embodiment of step S51 in fig. 8. Specifically, step S51 includes:
s60: and enabling the detection device to receive the second vehicle networking exchange information sent by the first road side unit at a position with a preset distance from the first road side unit.
Specifically, the predetermined distance may be 1m, 5m, 10m, 20m, 50m, 100m, 200m, 300m, 500m, etc., and the present application is not limited thereto. In this embodiment, the second internet of vehicles exchange information is sent by the first road side unit to the on-board unit of the target vehicle.
S61: and receiving a receiving result of the second vehicle networking exchange information returned by the detection device, and judging whether the first road side unit has an abnormality at a position with a preset distance according to the receiving result.
Specifically, in the present embodiment, please refer to fig. 10, and fig. 10 is a flowchart illustrating an embodiment corresponding to step S61 in fig. 9. Specifically, the step of determining whether there is an abnormality of the first roadside unit at the predetermined distance position based on the reception result in step S61 includes:
s70: and judging whether the detection device does not receive the second vehicle networking exchange information at the position with the preset distance.
S71: if yes, the first road side unit is judged to have abnormity at the position of the preset distance.
Specifically, if the detection device does not receive the second internet of vehicles exchange information at the predetermined distance position, it is determined that the first road side unit has an abnormality at the predetermined distance position, which indicates that the detection device may not receive the second internet of vehicles exchange information due to signal attenuation or may not receive the second internet of vehicles exchange information due to signal interference. Maintenance personnel may be notified at this point that the first roadside unit has failed at the predetermined distance and needs to be serviced. Therefore, the distance at which the first road side unit breaks down can be accurately known, and therefore maintenance personnel are informed to conduct targeted maintenance on the first road side unit.
S72: otherwise, a first data packet sent by the first road side unit and a second data packet sent by the detection device are obtained.
Specifically, if the detection device receives the second internet-of-vehicles exchange information at the predetermined distance position, the first data packet sent by the first roadside unit and the second data packet sent by the detection device are acquired. Specifically, in this embodiment, the first data packet includes backup information of the first vehicle networking exchange information sent by the first road side unit to the vehicle-mounted unit of the target vehicle, a corresponding location and a time point at which the first vehicle networking exchange information is sent, and the second data packet includes second vehicle networking exchange information received by the detection device, a corresponding location and a time point at which the second vehicle networking exchange information is received. Therefore, the fault at the position can be accurately detected, and whether the delay exists when the transmitted data packet is received can also be accurately detected.
S73: and judging whether the coincidence rate between the first data packet and the second data packet is greater than a threshold value.
S74: if yes, the step of judging whether all the preset distances are passed is carried out.
Specifically, if the coincidence rate between the first data packet and the second data packet is greater than the threshold value, it indicates that there is no problem in the first road side unit, and then the process goes to step S62 to ensure that the tests are completed at all the predetermined distances, thereby improving the accuracy of fault detection.
S75: if not, judging that the first road side unit has abnormality at the position of the preset distance.
Specifically, if the coincidence rate between the first data packet and the second data packet is smaller than or equal to the threshold, it is indicated that the first road side unit has a fault at a position with a predetermined distance, and at this time, the current packet sending accuracy is summarized, and a maintenance person is notified to perform targeted maintenance.
In this way, it is possible to accurately know what kind of fault has occurred at that predetermined distance in the first roadside unit, thereby improving the efficiency and accuracy of fault detection.
S62: it is determined whether all of the predetermined distances have been traversed.
S63: if yes, a return instruction is sent to the detection device, and a backup finishing instruction is sent to the first road side unit.
Specifically, if all the predetermined distances have passed, a return instruction is sent to the detection device, and a backup ending instruction is sent to the first roadside unit, so that the maintenance device returns and the first maintenance unit ends the backup. Therefore, the first road side unit can continue to normally operate after detection is finished, and no influence is caused on traffic on the road.
S64: if not, the detection device receives the second car networking exchange information sent by the first road side unit at another predetermined distance position from the first road side unit, and returns to step S61.
Specifically, if all the predetermined distances do not pass, the detection device is enabled to receive the second vehicle networking exchange information sent by the first road side unit at another predetermined distance position from the first road side unit, the second vehicle networking exchange information is returned to the receiving result of the second vehicle networking exchange information returned by the receiving detection device, and whether the first road side unit is abnormal at the predetermined distance position is judged according to the receiving result, so that the test completion at all the predetermined distances can be ensured, and the accuracy of fault detection is improved.
S52: otherwise, return to step S50.
Specifically, if the first location information and the detection instruction sent by the first road side unit a are not received, it is described that the first road side unit a is not abnormal, and at this time, after sleeping for 1 second, the step of determining whether the first location information and the detection instruction sent by the first road side unit a are received is returned. Of course, the sleep time may be set to other times, and the application is not limited herein.
Through this kind of design, adopt detection device such as unmanned aerial vehicle to carry out pertinence further detection to the road side unit, whole journey need not artifical participation and road side unit still can be at testing process normal operating, not only can not disturb the traffic on the road, can improve fault detection's efficiency and degree of accuracy moreover.
Referring to fig. 11, fig. 11 is a schematic diagram of a frame of an embodiment of a fault detection system according to the present application. The fault detection system specifically comprises:
the obtaining module 20 is configured to obtain a plurality of second roadside units around the first roadside unit by using the first position information of the first roadside unit, and establish a communication connection with the plurality of second roadside units.
The processing module 22 is coupled to the obtaining module 20, and configured to send first position information and a detection instruction to the car networking management platform in response to that the first road side unit does not receive the first car networking exchange information within a first preset time and that at least one second road side unit receives the first car networking exchange information, so that the car networking management platform detects the first road side unit.
Referring to fig. 12, fig. 12 is a block diagram illustrating a computer-readable storage medium according to an embodiment of the present disclosure. The computer-readable storage medium 30 stores a computer program 300, which can be read by a computer, and the computer program 300 can be executed by a processor to implement the fault detection method mentioned in any of the above embodiments. The computer program 300 may be stored in the computer readable storage medium 30 in the form of a software product, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. The computer-readable storage medium 30 having a storage function may be various media that can store program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, or may be a terminal device such as a computer, a server, a mobile phone, or a tablet.
In summary, unlike the case of the prior art, the fault detection method provided by the present application includes: the method comprises the steps that a plurality of second road side units around a first road side unit are obtained through first position information of the first road side unit and are in communication connection with the second road side units, when the first road side unit does not receive first vehicle networking exchange information within a first preset time and at least one second road side unit receives the first vehicle networking exchange information, first position information and a detection instruction are sent to a vehicle networking management platform, and therefore the vehicle networking management platform can detect the first road side unit. Through mutual detection among a plurality of road side units, whole journey need not artifical participation and road side unit still can be in testing process normal operating, not only can not disturb the traffic on the road, can improve the efficiency and the degree of accuracy that detect moreover.
The above description is only an embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes performed by the present application and the contents of the attached drawings, which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (9)
1. A method of fault detection, comprising:
acquiring a plurality of second road side units around a first road side unit by using first position information of the first road side unit, and establishing communication connection between the second road side units;
in response to that the first road side unit does not receive first vehicle networking exchange information within a first preset time and at least one second road side unit receives the first vehicle networking exchange information, sending the first position information and a detection instruction to a vehicle networking management platform so that the vehicle networking management platform detects the first road side unit;
wherein the step of obtaining a plurality of second road side units around the first road side unit by using the first position information includes: acquiring a plurality of target road side units in a preset range around the first road side unit by using the first position information; screening and obtaining the second road side unit positioned in the preset direction of the first road side unit from the plurality of target road side units; wherein the preset directions comprise an east direction, a west direction, a south direction and a north direction;
wherein, before the step of responding to that the first road side unit does not receive the first vehicle networking exchange information within the first preset time and any at least one second road side unit receives the first vehicle networking exchange information, the method includes: all the Internet of vehicles exchange information received by the plurality of second road side units within second preset time is obtained; wherein the Internet of vehicles exchange information is sent by an on-board unit of a vehicle passing each of the second road side units; screening out a target vehicle moving towards the first road side unit and the first vehicle networking exchange information sent by the vehicle-mounted unit of the target vehicle by utilizing second position information of the vehicle sending the vehicle networking exchange information; wherein the first Car networking exchange information is sent by an on-board unit of a target vehicle moving toward the first roadside unit.
2. The method according to claim 1, wherein the step of sending the first location information and the detection instruction to a car networking management platform so that the car networking management platform detects the first road side unit includes:
responding to a received backup instruction of the Internet of vehicles management platform, and sending backup information of second Internet of vehicles exchange information sent to a vehicle-mounted unit of the target vehicle after the current moment to the Internet of vehicles management platform;
and in response to the received backup finishing instruction of the vehicle networking management platform, stopping backup and continuously sending the second vehicle networking exchange information to the vehicle-mounted unit of the target vehicle.
3. A method of fault detection, comprising:
in response to receiving first position information and a detection instruction sent by a first road side unit, scheduling a detection device closest to the first road side unit according to the first position information to detect the first road side unit; after the first road side unit obtains a plurality of second road side units around the first road side unit by using the first position information and establishes communication connection with the plurality of second road side units, the first road side unit responds to that the first road side unit does not receive the first vehicle networking exchange information within a first preset time, and at least one second road side unit generates the detection instruction when receiving the first vehicle networking exchange information.
4. The method according to claim 3, wherein the step of scheduling the detecting device closest to the first road side unit to detect the first road side unit according to the first position information includes:
enabling the detection device to receive second vehicle networking exchange information sent by the first road side unit at a position with a preset distance from the first road side unit;
receiving a receiving result of second vehicle networking exchange information returned by the detection device, and judging whether the first road side unit is abnormal at the position of the preset distance according to the receiving result;
judging whether all the preset distances go through;
if yes, sending a return instruction to the detection device, and sending a backup finishing instruction to the first road side unit;
and if not, enabling the detection device to receive second vehicle networking exchange information sent by the first road side unit at another preset distance position from the first road side unit, returning to a receiving result of the second vehicle networking exchange information returned by the detection device, and judging whether the first road side unit is abnormal at the preset distance position according to the receiving result.
5. The failure detection method according to claim 4, wherein the step of determining whether the first roadside unit has an abnormality at the predetermined distance position according to the reception result includes:
in response to the detection device not receiving the second vehicle networking exchange information at the predetermined distance position, determining that the first road side unit has an abnormality at the predetermined distance position.
6. The method according to claim 5, wherein the step of determining the abnormal position of the first roadside unit according to the reception result further includes:
in response to the detection device receiving the second vehicle networking exchange information at the predetermined distance position, acquiring a first data packet sent by the first road side unit and a second data packet sent by the detection device; the first data packet comprises backup information of first vehicle networking exchange information sent by the first road side unit to a vehicle-mounted unit of a target vehicle, a corresponding position and a time point for sending the first vehicle networking exchange information, and the second data packet comprises the second vehicle networking exchange information received by the detection device, a corresponding position and a time point for receiving the second vehicle networking exchange information;
judging whether the coincidence rate between the first data packet and the second data packet is greater than a threshold value;
if not, judging that the first road side unit has abnormality at the position of the preset distance.
7. A fault detection device, comprising:
the system comprises a first road side unit, a second road side unit, a vehicle networking management platform and a detection device;
the first road side unit is respectively connected with the second road side unit, the Internet of vehicles management platform and the detection device, and the Internet of vehicles management platform is respectively connected with the second road side unit and the detection device; the first road side unit, the second road side unit, the Internet of vehicles management platform and the detection device are matched with each other to realize the fault detection method of any one of claims 1 to 2 or 3 to 6.
8. The failure detection device according to claim 7,
the detection device comprises an unmanned aerial vehicle.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for implementing the fault detection method of any one of claims 1 to 2 or 3 to 6.
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