Automatic diagnosis method and system for guardrail cleaning vehicle
By introducing automatic diagnosis methods and systems into the guardrail cleaning vehicle, and using simulation data and expert fault diagnosis systems, the problem of unsatisfactory troubleshooting efficiency and accuracy of existing guardrail cleaning vehicles is solved, and fast and accurate fault diagnosis is achieved, and maintenance efficiency is improved.
Patent Information
- Application Number
- CN202411809759.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-03-25
AI Technical Summary
The troubleshooting efficiency and accuracy of existing guardrail cleaning vehicles are not ideal, and there is a lack of professional fault diagnosis system.
Automatic diagnosis methods and systems are adopted to obtain target monitoring data of the guardrail cleaning vehicle, input simulation model to obtain operation simulation data, and make abnormal judgments based on actual data. If there is an exception, use an expert fault diagnosis system for automatic diagnosis, including a knowledge base, database and inference machine, to perform forward reasoning to obtain diagnostic results.
It realizes the rapid and accurate diagnosis of guardrail cleaning vehicle faults, improves maintenance efficiency, promptly detects system abnormalities, and reduces the difficulty of fault diagnosis.
Smart Images
Figure CN119691648A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of special vehicles, and in particular to an automatic diagnosis method and system for a guardrail cleaning vehicle. Background Art
[0002] Guardrail cleaning vehicles are mainly used for cleaning guardrails and urban road isolation guardrails. They can also be used to clean industrial drainage pipes, walls, urban road isolation guardrails, and walls on both sides of the road. Various sensors are installed in existing guardrail cleaning vehicles to detect the operation status and working parameters of the system. The display only displays some parameters, lacks professional fault diagnosis, and the troubleshooting efficiency and accuracy of guardrail cleaning vehicles are not ideal. Summary of the invention
[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an automatic diagnosis method and system for a guardrail cleaning vehicle, so as to solve the technical problem that the troubleshooting efficiency and accuracy of the existing guardrail cleaning vehicles are not ideal.
[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides an automatic diagnosis method for a guardrail cleaning vehicle, comprising: Obtain target monitoring data of guardrail cleaning vehicles; Inputting the target monitoring data into a guardrail cleaning vehicle simulation model to obtain operation simulation data; Acquire actual operation data of the guardrail cleaning vehicle, and make abnormal judgment based on the operation simulation data; If there is an abnormality, automatic diagnosis is performed based on the expert fault diagnosis system.
[0005] Optionally, the expert fault diagnosis system includes a knowledge base, a database and an inference engine; The knowledge base includes structural function knowledge and expert knowledge of the guardrail cleaning vehicle; The database includes category codes, model codes, serial codes and monitoring data of monitoring equipment of guardrail cleaning vehicles; An association relationship is established between the knowledge base and the database.
[0006] Optionally, the automatic diagnosis based on the expert fault diagnosis system includes: The anomaly is searched in the knowledge base, and if the anomaly is found, corresponding knowledge and data are extracted from the knowledge base and the database, and forward reasoning is performed by the inference engine to obtain a diagnosis result.
[0007] Optionally, if the anomaly is not found, it is transferred to manual processing, and the anomaly and knowledge input by the manual processing are obtained and updated to the knowledge base.
[0008] In a second aspect, the present invention provides an automatic diagnosis system for a guardrail cleaning vehicle, comprising an information acquisition unit, an integrated display and control machine, and an industrial computer electrically connected in sequence, wherein the information acquisition unit is used to obtain target monitoring data of the guardrail cleaning vehicle; the integrated display and control machine is used to receive the target monitoring data of the guardrail cleaning vehicle and send it to the industrial computer, a guardrail cleaning vehicle simulation model and an expert fault diagnosis system are deployed in the industrial computer, the target monitoring data is input into the guardrail cleaning vehicle simulation model to obtain operation simulation data; the actual operation data of the guardrail cleaning vehicle is obtained, and an abnormality judgment is performed in combination with the operation simulation data; if an abnormality exists, automatic diagnosis is performed based on the expert fault diagnosis system, and the automatic diagnosis result is returned to the integrated display and control machine.
[0009] Optionally, the information collection unit includes: Water level sensor and water temperature sensor for collecting water level information and water temperature information in the water tank; oil level sensor for collecting oil level information in the hydraulic oil tank; pressure sensor for collecting oil pressure information in the hydraulic pipeline; ultrasonic sensor for collecting the distance between the guardrail cleaning vehicle and the guardrail; wire sensor for collecting the extension length of the roller brush component; speed sensor for collecting engine speed.
[0010] Optionally, the integrated display and control machine and the industrial computer are connected via a CAN bus.
[0011] Optionally, the integrated display and control machine is also electrically connected to an audible and visual alarm, and if there is an abnormality, the audible and visual alarm will be used to give an abnormal reminder.
[0012] Optionally, the expert fault diagnosis system includes a knowledge base, a database and an inference engine; The knowledge base includes structural function knowledge and expert knowledge of the guardrail cleaning vehicle; The database includes category codes, model codes, serial codes and monitoring data of monitoring equipment of guardrail cleaning vehicles; Establishing an association relationship between the knowledge base and the database; The automatic diagnosis based on the expert fault diagnosis system includes: The anomaly is searched in the knowledge base, and if the anomaly is found, corresponding knowledge and data are extracted from the knowledge base and the database, and forward reasoning is performed by the inference engine to obtain a diagnosis result.
[0013] Optionally, if the anomaly is not found, it is transferred to manual processing, and the anomaly and knowledge input by the manual processing are obtained and updated to the knowledge base.
[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an automatic diagnosis method and system for a guardrail cleaning vehicle. After acquiring target monitoring data, operation simulation data is acquired according to a simulation model of the guardrail cleaning vehicle. The operation simulation data is compared and analyzed with the actual operation data. Once an abnormality is found, the expert fault diagnosis system will analyze the cause of the fault and display the diagnosis result in real time on a human-computer interaction interface. Users can promptly discover system faults, quickly resolve system faults, and improve maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a flow chart of an automatic diagnosis method of a guardrail cleaning vehicle provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram of an automatic diagnosis system for a guardrail cleaning vehicle provided in an embodiment of the present invention. DETAILED DESCRIPTION
[0016] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.
[0017] Embodiment 1:
[0018] like Figure 1 As shown, an embodiment of the present invention provides an automatic diagnosis method for a guardrail cleaning vehicle, comprising the following steps: Step S1, obtaining target monitoring data of the guardrail cleaning vehicle.
[0019] Step S2: input the target monitoring data into the guardrail cleaning vehicle simulation model to obtain operation simulation data.
[0020] Step S3: Acquire actual operation data of the guardrail cleaning vehicle, and perform abnormality judgment in combination with operation simulation data.
[0021] The abnormality judgment can be made based on the difference between the running simulation data and the running actual data. According to the preset rules, if one or more differences exceed the threshold, there is a difference, and the type of difference can be determined based on the difference items.
[0022] Step S4: If there is an abnormality, automatic diagnosis is performed based on the expert fault diagnosis system.
[0023] The expert fault diagnosis system includes a knowledge base, a database, and an inference engine; The knowledge base includes knowledge of the structure and function of guardrail washing vehicles and expert knowledge; The database contains the category code, model code, serial code and monitoring data of the monitoring equipment of the guardrail cleaning vehicle; the monitoring data includes current data, historical data, trend data and standard data, etc.; Establish an association between the knowledge base and the database.
[0024] Automatic diagnosis based on expert fault diagnosis system includes: Search for anomalies in the knowledge base. If anomalies are found, extract the corresponding knowledge and data from the knowledge base and database, and obtain the diagnosis results through forward reasoning by the inference engine. If no anomalies are found, turn to manual processing, obtain the anomalies and knowledge input by manual processing, and update them to the knowledge base.
[0025] Embodiment 2:
[0026] like Figure 2 As described, an embodiment of the present invention provides an automatic diagnosis system for a guardrail cleaning vehicle, including an information acquisition unit, a display and control integrated machine, and an industrial computer that are electrically connected in sequence, wherein the information acquisition unit is used to obtain target monitoring data of the guardrail cleaning vehicle; the display and control integrated machine is used to receive the target monitoring data of the guardrail cleaning vehicle and send it to the industrial computer, and a guardrail cleaning vehicle simulation model and an expert fault diagnosis system are deployed in the industrial computer, and the target monitoring data is input into the guardrail cleaning vehicle simulation model to obtain operation simulation data; the actual operation data of the guardrail cleaning vehicle is obtained, and abnormality judgment is performed in combination with the operation simulation data; if an abnormality exists, automatic diagnosis is performed based on the expert fault diagnosis system, and the automatic diagnosis result is returned to the display and control integrated machine. The display and control integrated machine is also electrically connected to an audible and visual alarm, and if an abnormality exists, an abnormality reminder is given through the audible and visual alarm.
[0027] Specifically in this embodiment, the information collection unit includes: a water level sensor and a water temperature sensor for collecting water level information and water temperature information in the water tank; an oil level sensor for collecting oil level information in the hydraulic oil tank; a pressure sensor for collecting oil pressure information in the hydraulic pipeline; an ultrasonic sensor for collecting the distance between the guardrail cleaning vehicle and the guardrail; a pull-wire sensor for collecting the extension length of the roller brush component; and a speed sensor for collecting the engine speed. In other optional embodiments, other sensors can be set according to actual needs.
[0028] Specifically in this embodiment, the integrated display and control machine and the industrial computer are connected via the CAN bus. The CAN bus has the advantages of high reliability, high real-time performance, strong flexibility, low cost, easy maintenance and diagnosis, standardization, and efficient data transmission. These advantages make the CAN bus widely used in automotive electronic systems, industrial control systems, and other fields that require high reliability and real-time communication.
[0029] Specifically in this embodiment, the expert fault diagnosis system includes a knowledge base, a database, and an inference engine; The knowledge base includes knowledge of the structure and function of guardrail washing vehicles and expert knowledge; The database contains the category code, model code, serial code and monitoring data of the monitoring equipment of the guardrail cleaning vehicle; Establishing associations between knowledge bases and databases; Automatic diagnosis based on expert fault diagnosis system includes: Search for anomalies in the knowledge base. If anomalies are found, extract the corresponding knowledge and data from the knowledge base and database, and obtain the diagnosis results through forward reasoning by the inference engine. If no anomalies are found, turn to manual processing, obtain the anomalies and knowledge input by manual processing, and update them to the knowledge base.
[0030] The system can monitor the running status of the guardrail cleaning vehicle in real time and display it on the display screen of the integrated display and control machine. At the same time, the industrial computer has a built-in model corresponding to the guardrail cleaning vehicle. By comparing the simulated operating parameters with the actual operating parameters, the working status of the guardrail cleaning vehicle is determined. Once a system abnormality is found, the expert system fault diagnosis analyzes the diagnosis results based on the user input and displays the corresponding diagnosis results on the display screen of the integrated display and control machine. This system can monitor the running status of the guardrail cleaning vehicle in real time, detect system abnormalities in time, reduce the difficulty of fault diagnosis, and improve the efficiency of fault diagnosis.
[0031] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0032] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.
[0033] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.
[0034] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.
[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. An automatic diagnosis method for a guardrail cleaning vehicle, characterized in that: include: Obtain target monitoring data of guardrail cleaning vehicles; Inputting the target monitoring data into a guardrail cleaning vehicle simulation model to obtain operation simulation data; Acquire actual operation data of the guardrail cleaning vehicle, and make abnormal judgment based on the operation simulation data; If there is an abnormality, automatic diagnosis is performed based on the expert fault diagnosis system.
2. The automatic diagnosis method for a guardrail cleaning vehicle according to claim 1, characterized in that: The expert fault diagnosis system includes a knowledge base, a database and an inference engine; The knowledge base includes structural function knowledge and expert knowledge of the guardrail cleaning vehicle; The database includes category codes, model codes, serial codes and monitoring data of monitoring equipment of guardrail cleaning vehicles; An association relationship is established between the knowledge base and the database.
3. The automatic diagnosis method for a guardrail cleaning vehicle according to claim 2, characterized in that: The automatic diagnosis based on the expert fault diagnosis system includes: The anomaly is searched in the knowledge base, and if the anomaly is found, corresponding knowledge and data are extracted from the knowledge base and the database, and forward reasoning is performed by the inference engine to obtain a diagnosis result.
4. The automatic diagnosis method for a guardrail cleaning vehicle according to claim 3, characterized in that: If the anomaly is not found, it is transferred to manual processing, and the anomaly and knowledge input by the manual processing are obtained and updated to the knowledge base.
5. An automatic diagnostic system for a guardrail cleaning vehicle, characterized in that: The system comprises an information acquisition unit, an integrated display and control machine and an industrial computer which are electrically connected in sequence, wherein the information acquisition unit is used to obtain target monitoring data of a guardrail cleaning vehicle; the integrated display and control machine is used to receive the target monitoring data of the guardrail cleaning vehicle and send it to the industrial computer, a simulation model of a guardrail cleaning vehicle and an expert fault diagnosis system are deployed in the industrial computer, the target monitoring data is input into the simulation model of the guardrail cleaning vehicle to obtain operation simulation data; the actual operation data of the guardrail cleaning vehicle is obtained, and abnormality judgment is performed in combination with the operation simulation data; If there is an abnormality, an automatic diagnosis is performed based on the expert fault diagnosis system, and the automatic diagnosis result is returned to the display and control integrated machine.
6. The automatic diagnosis system for a guardrail cleaning vehicle according to claim 5, characterized in that: The information collection unit comprises: Water level sensor and water temperature sensor for collecting water level information and water temperature information in the water tank; oil level sensor for collecting oil level information in the hydraulic oil tank; pressure sensor for collecting oil pressure information in the hydraulic pipeline; ultrasonic sensor for collecting the distance between the guardrail cleaning vehicle and the guardrail; wire sensor for collecting the extension length of the roller brush component; speed sensor for collecting engine speed.
7. The automatic diagnosis system for a guardrail cleaning vehicle according to claim 5, characterized in that: The integrated display and control machine and the industrial computer are connected via a CAN bus.
8. The automatic diagnosis system for a guardrail cleaning vehicle according to claim 5, characterized in that: The integrated display and control machine is also electrically connected to an audible and visual alarm, and if there is an abnormality, the audible and visual alarm will be used to give an abnormal reminder.
9. The automatic diagnosis system for a guardrail cleaning vehicle according to claim 5, characterized in that: The expert fault diagnosis system includes a knowledge base, a database and an inference engine; The knowledge base includes structural function knowledge and expert knowledge of the guardrail cleaning vehicle; The database includes category codes, model codes, serial codes and monitoring data of monitoring equipment of guardrail cleaning vehicles; Establishing an association relationship between the knowledge base and the database; The automatic diagnosis based on the expert fault diagnosis system includes: The anomaly is searched in the knowledge base, and if the anomaly is found, corresponding knowledge and data are extracted from the knowledge base and the database, and forward reasoning is performed by the inference engine to obtain a diagnosis result.
10. The automatic diagnosis system for a guardrail cleaning vehicle according to claim 9, characterized in that: If the anomaly is not found, it is transferred to manual processing, and the anomaly and knowledge input by the manual processing are obtained and updated to the knowledge base.