Automatic test system and test method for charging pile

Abstract

The invention relates to an automatic test system and method for a charging pile, and belongs to the technical field of charging piles, and the system comprises an appearance detection and recognition device, a maintenance period judgment device, a camera dust deposition detection device, an automatic cleaning and maintenance device, and a main control device. And the resource utilization efficiency is extremely high and the cost is saved. According to the calculation resource, only when appearance abnormity is found, a dust deposition detection algorithm is started, and the calculation load caused by continuous image analysis on a standard block is avoided. For an embedded system with limited processing capacity, this is an important consideration factor. And action resources are that the automatic cleaning device is triggered only after confirming that the problem is caused by dust deposition, so that the times of cleaning actions (such as compressed air for purging and abrasion of a wiping mechanism) are greatly reduced, and the running cost, the part loss and the like are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of charging piles, and particularly relates to a charging pile automatic testing system and a testing method. BACKGROUND

[0002] The existing automobile charging pile detection equipment includes a workbench, a rotating disc mechanism for driving the position movement of the power supply part, an appearance detection mechanism for photographing and detecting the appearance of the power supply part on the rotating disc mechanism, and a conductivity detection mechanism for detecting the conductivity of the power supply part on the rotating disc mechanism. The appearance detection mechanism includes a support, a height adjusting assembly and a CCD camera. The height adjusting assembly is movably arranged on the support, and the CCD camera is connected with the height adjusting assembly. The position movement, appearance detection and conductivity detection of the power supply part are automatically realized by adopting the rotating disc mechanism, the appearance detection mechanism and the conductivity detection mechanism, thereby improving the detection efficiency and accuracy. The height of the CCD camera is adjusted by adopting the height adjusting assembly, so that the CCD camera can be adjusted according to actual needs, and the application range is wide.

[0003] The automobile charging pile detection equipment is placed in a closed room, and its cleaning and maintenance period is generally long, and it is cleaned and maintained manually. If the corresponding cleaning personnel delays or forgets to process, dust is easily accumulated on the CCD camera, thereby causing misjudgment in the appearance detection link.

[0004] Therefore, at present, the charging pile automatic testing system and the testing method need to be designed to solve the above problems. SUMMARY

[0005] The application aims to provide a charging pile automatic testing system and a testing method to solve the technical problems existing in the prior art. The automobile charging pile detection equipment is placed in a closed room, and its cleaning and maintenance period is generally long, and it is cleaned and maintained manually. If the corresponding cleaning personnel delays or forgets to process, dust is easily accumulated on the CCD camera, thereby causing misjudgment in the appearance detection link.

[0006] To achieve the above-mentioned purpose, the technical scheme of the application is as follows:

[0007] The charging pile automatic testing system includes an appearance detection and identification device, a maintenance period judgment device, a camera dust detection device, an automatic cleaning and maintenance device and a main control device. The main control device is connected with the appearance detection and identification device, the maintenance period judgment device, the camera dust detection device and the automatic cleaning and maintenance device.

[0008] The appearance detection and identification device is used to identify whether the appearance of the power supply part detected by the appearance detection mechanism is abnormal.

[0009] The maintenance cycle judging device is used for judging whether the cleaning maintenance cycle of the detection equipment for the automobile charging pile is abnormal or not;

[0010] The camera dust detection device is used for detecting whether the lens of the CCD camera is dusty or not;

[0011] The automatic cleaning maintenance device is used for automatically cleaning and maintaining the lens of the CCD camera;

[0012] The main control device controls the initial state of the appearance detection and identification device, the maintenance cycle judging device, the camera dust detection device and the automatic cleaning maintenance device to be closed;

[0013] When the appearance detection mechanism is running, the main control device controls the appearance detection and identification device to be opened;

[0014] When the appearance detection and identification device identifies that the appearance of the powered part detected by the appearance detection mechanism is abnormal, the main control device controls the maintenance cycle judging device to be opened;

[0015] When the maintenance cycle judging device judges that the cleaning maintenance cycle of the detection equipment for the automobile charging pile is abnormal, the main control device controls the camera dust detection device to be opened;

[0016] When the camera dust detection device detects that the lens of the CCD camera is dusty, the main control device controls the automatic cleaning maintenance device to be opened.

[0017] Further, the foreign matter detection device is also included, which is connected with the main control device;

[0018] The foreign matter detection device is used for detecting whether there is foreign matter on the powered part or not;

[0019] The main control device controls the initial state of the foreign matter detection device to be closed;

[0020] When the appearance detection and identification device identifies that the appearance of the powered part detected by the appearance detection mechanism is abnormal, the main control device controls the foreign matter detection device to be opened;

[0021] When the foreign matter detection device detects that there is no foreign matter on the powered part, the main control device controls the maintenance cycle judging device to be opened.

[0022] Further, the support containing detection device, the support shaking detection device, the article moving detection device, the test interruption device and the abnormality warning device are also included, and the main control device is connected with the support containing detection device, the support shaking detection device, the article moving detection device, the test interruption device and the abnormality warning device respectively;

[0023] The support containing detection device is used for detecting whether the support containing device above the rotating disc mechanism contains articles;

[0024] The support shaking detection device is used for detecting whether the support containing device above the rotating disc mechanism shakes abnormally;

[0025] The article moving detection device is used for detecting whether the articles contained in the support containing device move;

[0026] The test interruption device is used for interrupting the test process of the charging pile;

[0027] The abnormality warning device is used for warning the staff of the charging pile automatic test.

[0028] Further, the main control device controls the initial state of the support containing detection device, the support shaking detection device, the article moving detection device, the test interruption device and the abnormality warning device to be closed;

[0029] When the rotating disc mechanism starts to act, the main control device controls the support containing detection device to be opened;

[0030] When the support containing detection device detects that the support containing device above the rotating disc mechanism contains articles, the main control device controls the support shaking detection device to be opened;

[0031] When the support shaking detection device detects that the support containing device above the rotating disc mechanism shakes abnormally, the main control device controls the article moving detection device to be opened;

[0032] When the article moving detection device detects that the articles contained in the support containing device move, the main control device controls the test interruption device and the abnormality warning device to be opened.

[0033] Further, the personnel approaching detection device is further included, and the personnel approaching detection device is connected with the main control device;

[0034] The personnel approaching detection device is used for detecting whether personnel approach the support containing device above the rotating disc mechanism;

[0035] The main control device controls the initial state of the personnel approaching detection device to be closed;

[0036] When the support containing detection device detects that the support containing device above the rotating disc mechanism contains articles, the main control device controls the personnel approaching detection device to be opened;

[0037] When the personnel approaching detection device detects that personnel approach the support containing device above the rotating disc mechanism, the main control device controls the article moving detection device to be opened.

[0038] Further, a timing device is further included, and the timing device is connected with the master control device.

[0039] The timing device is used for starting timing when the abnormality warning device is turned on.

[0040] Further, a wireless communication device is further included, and the master control device is connected with a remote monitoring terminal network through the wireless communication device.

[0041] The method for automatically testing the charging pile is used for automatically testing the charging pile by using the system for automatically testing the charging pile.

[0042] Compared with the prior art, the method has the beneficial effects that:

[0043] The core idea of the scheme is: "do not waste every abnormality, and regard it as an opportunity to diagnose the health of the system itself." The advantages mainly lie in the following aspects:

[0044] Very high resource utilization efficiency and cost saving

[0045] Computing resources: only when the appearance abnormality is found, the dust accumulation detection algorithm is started, and the computing load caused by continuous image analysis of the standard block is avoided. For the embedded system with limited processing capacity, this is an important consideration.

[0046] Action resources: the automatic cleaning device is triggered only after confirming that the problem is caused by dust accumulation, so that the number of cleaning actions (such as compressed air for blowing and wear of the wiping mechanism) is greatly reduced, and the operation cost and component wear are reduced.

[0047] Very strong pertinence and fault diagnosis capability

[0048] It is not only "cleaning", but also "root cause analysis". When the appearance detection is abnormal, the system can automatically distinguish whether the problem is a quality defect of the product itself or a fault of the detection system itself.

[0049] This provides very high credibility for production quality control. If the dust accumulation detection confirms that the lens is clean, it can be determined that the appearance abnormality is a real product defect, and the system misjudgment is avoided.

[0050] Effectively reduce the risk of "over-maintenance"

[0051] In a very clean environment, the camera may not accumulate dust for a long time. If active cleaning is frequently performed, sometimes the small disturbance or accidental introduction of risk (such as the occasional oil stains on the wiping cloth) of the cleaning mechanism itself may occur.

[0052] This solution achieves "maintenance when necessary", a kind of on-demand maintenance, perfectly avoiding the potential side effects of over-maintenance.

[0053] Realize the "self-aware" and "self-diagnosis" of the system

[0054] This solution makes the system go beyond the basic function and has the initial "self-aware" ability. It can perceive the degradation of its own state (the clarity of the vision system) and correlate it with the production quality fluctuation. This is an important step towards the predictive maintenance in the higher level intelligent factory (Industry 4.0). BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 The system operation principle diagram of example 1 in the embodiment of the present solution.

[0056] Figure 2 The system operation principle diagram of example 2 in the embodiment of the present solution. DETAILED DESCRIPTION

[0057] Example 1:

[0058] The automatic test system for charging pile includes appearance detection and identification device, maintenance cycle judgment device, camera dust detection device, automatic cleaning and maintenance device, and main control device. The main control device is connected with the appearance detection and identification device, the maintenance cycle judgment device, the camera dust detection device, and the automatic cleaning and maintenance device.

[0059] The appearance detection and identification device is used to identify whether the appearance of the energized part detected by the appearance detection mechanism is abnormal.

[0060] The maintenance cycle judgment device is used to judge whether the cleaning and maintenance cycle of the automobile charging pile detection equipment is abnormal.

[0061] The camera dust detection device is used to detect whether the lens of the CCD camera is dusty.

[0062] Core component: reference calibration block (such as a standard grid chart or a card with specific colors and patterns).

[0063] Working principle: the main control device controls the CCD camera to take pictures of the calibration block regularly. Through image processing algorithm, the clarity (sharpness), contrast, and gray value standard deviation of the image are calculated. When these indicators are lower than the preset threshold, it is determined that there is dust. This is a low-cost and high-reliability self-checking solution.

[0064] The automatic cleaning and maintenance device is used to automatically clean and maintain the lens of the CCD camera.

[0065] Preferred solution: Precision blowing system. Contains precision nozzle, solenoid valve and filter pressure reducing valve, connected to the factory gas source. Fast action, no contact, no wear.

[0066] Alternative solution: For more severe environments, a combination of "blowing + contact wiping" can be used. The wiping mechanism needs to use a dust-free cloth and a low-torque motor to avoid scratching the lens.

[0067] Among them, as shown in Figure 1 The main control device controls the initial state of the appearance detection and identification device, the maintenance cycle judgment device, the camera dust detection device, and the automatic cleaning and maintenance device to be closed.

[0068] When the appearance detection mechanism is running, the main control device controls the appearance detection and identification device to be opened.

[0069] When the appearance detection and identification device identifies that the appearance of the powered component detected by the appearance detection mechanism is abnormal, the main control device controls the maintenance cycle judgment device to be opened.

[0070] When the maintenance cycle judgment device determines that the cleaning and maintenance cycle of the automobile charging pile detection equipment is abnormal, the main control device controls the camera dust detection device to be opened.

[0071] When the camera dust detection device detects dust on the lens of the CCD camera, the main control device controls the automatic cleaning and maintenance device to be opened.

[0072] The core idea of the above solution is: "Do not waste every abnormality, and regard it as an opportunity to diagnose the health of the system itself." The advantages mainly lie in the following aspects:

[0073] High resource utilization efficiency and cost savings

[0074] Computing resources: Only when appearance abnormalities are found, the dust detection algorithm is started, avoiding the computing load brought by continuous image analysis of standard blocks. For embedded systems with limited processing capacity, this is an important consideration.

[0075] Action resources: The automatic cleaning device is only triggered after confirming that it is caused by dust, greatly reducing the number of cleaning actions (such as compressed air for blowing and wear of the wiping mechanism), reducing operating costs and component wear.

[0076] Strong pertinence and fault diagnosis capability

[0077] It is not just "cleaning", but "root cause analysis". When appearance detection is abnormal, the system can automatically distinguish whether it is a quality defect of the product itself or a fault of the detection system itself.

[0078] This provides very high credibility for production quality control. If the dust detection confirms that the lens is clean, it can be determined with certainty that this appearance anomaly is a true product defect, avoiding the misattribution of system errors to equipment problems.

[0079] Effectively reduce the risk of "over-maintenance"

[0080] In a very clean environment, the camera may not accumulate dust for a long time. If active cleaning is performed frequently, sometimes the small disturbance of the cleaning mechanism itself or the accidental introduction of risks (such as the occasional oil stains on the wiping cloth) may occur.

[0081] This scheme achieves "maintenance when necessary", which is a kind of on-demand maintenance, perfectly avoiding the potential side effects of over-maintenance.

[0082] Realize the "self-awareness" and "self-diagnosis" of the system

[0083] This scheme makes the system go beyond the basic function and has a preliminary "self-awareness" ability. It can perceive the degradation of its own state (the clarity of the vision system) and correlate it with production quality fluctuations. This is an important step towards predictive maintenance in higher-level intelligent factories (Industry 4.0).

[0084] Further, the foreign matter detection device is connected with the main control device;

[0085] The foreign matter detection device is used to detect whether there is foreign matter on the energized part;

[0086] The initial state of the foreign matter detection device controlled by the main control device is closed;

[0087] When the appearance detection and recognition device recognizes the appearance anomaly of the energized part detected by the appearance detection mechanism, the main control device controls the foreign matter detection device to open;

[0088] When the foreign matter detection device detects that there is no foreign matter on the energized part, the main control device controls the maintenance cycle judgment device to open.

[0089] After introducing the "foreign matter detection device", the system realizes three-level root cause diagnosis, which brings the following significant advantages:

[0090] Accurately locate the source of the problem and realize classified processing

[0091] Before optimization: appearance anomaly → may be dust accumulation, or product foreign matter.

[0092] After optimization: appearance anomaly → first judge whether it is product foreign matter:

[0093] Foreign matter: Determine that the product is real bad, directly alarm, record, sorting and rejection. The system will not start the cleaning process, avoiding invalid cleaning action and production interruption.

[0094] No foreign matter: Determine that the suspected detection system itself problem (such as camera dust), and then start the subsequent maintenance cycle and dust diagnosis process.

[0095] Advantages: greatly reduce the "false alarm", make maintenance action more accurate, save resources and time.

[0096] Improve the data reliability of quality control

[0097] Production quality management personnel can obtain very clear data report:

[0098] How many of "appearance abnormalities" are "powered components carrying foreign matter" caused by real defects.

[0099] How many are "camera lens dust" caused by system misjudgment.

[0100] This provides accurate data support for analyzing the weak links of production process (such as foreign matter source) and evaluating the maintenance state of equipment, realizing more refined management.

[0101] Optimize maintenance process and reduce cost

[0102] The system will not trigger self-cleaning due to "product foreign matter" and other external reasons, thereby reducing the use of consumables such as compressed air and wiping cloth, and reducing the wear of mechanical parts, prolonging the service life of the automatic cleaning maintenance device.

[0103] Build a complete "product-equipment" double detection closed loop

[0104] The system no longer only detects products, but also monitors the health status of the detection equipment itself. This "double detection" closed loop is an important feature of intelligent production line, which significantly improves the reliability and autonomy of the whole production system.

[0105] Embodiment 2:

[0106] Further, it further includes a bracket containing detection device, a bracket shaking detection device, an article moving detection device, a test interruption device and an abnormal alarm device, and the main control device is connected with the bracket containing detection device, the bracket shaking detection device, the article moving detection device, the test interruption device and the abnormal alarm device respectively;

[0107] The bracket containing detection device is used to detect whether the article is placed on the article placing bracket above the rotating disc mechanism;

[0108] The bracket vibration detection device is used to detect whether the storage bracket above the turntable mechanism is vibrating abnormally;

[0109] The item movement detection device is used to detect whether the items placed on the shelf have shifted.

[0110] The test interruption device is used to interrupt the testing process of the charging pile;

[0111] The abnormality warning device is used to alert relevant personnel involved in the automated testing of charging piles.

[0112] Furthermore, such as Figure 2 As shown, the main control device controls the initial state of the bracket placement detection device, bracket vibration detection device, item movement detection device, test interruption device, and abnormal warning device to be off;

[0113] When the turntable mechanism starts to operate, the main control device controls the bracket placement detection device to open.

[0114] When the bracket placement detection device detects that there are items on the shelf above the turntable mechanism, the main control device controls the bracket vibration detection device to be turned on.

[0115] When the bracket vibration detection device detects abnormal vibration of the storage bracket above the turntable mechanism, the main control device controls the item movement detection device to be activated.

[0116] When the item movement detection device detects that the item placed on the shelf has shifted, the main control device controls the test interruption device and the abnormality warning device to be activated.

[0117] An active security protection system has been constructed.

[0118] Previously: The system only performed internal diagnostics after detecting an abnormality in the product's appearance.

[0119] Currently, the system actively monitors the operational status of the core components (turntable, support) at the physical level. This prevents serious accidents caused by mechanical failures (such as bearing wear, motor step loss, structural loosening), such as products flying off or cameras being destroyed, achieving a leap from "detection and diagnosis" to "safety protection".

[0120] It has achieved full-process management of "prevention before the event, control during the event, and traceability after the event".

[0121] Prevention: Through continuous vibration monitoring, abnormal signs can be detected before the stent completely fails, providing early warning and avoiding catastrophic failures.

[0122] On-the-fly control: once the displacement of the article is detected, the test is immediately interrupted, preventing the continuation of the test with defective and unstable results, ensuring the validity of the test data and the safety of the equipment.

[0123] Post-mortem: all events that trigger the "test interruption" (abnormal filling, shaking, displacement) are recorded, providing accurate data chains for subsequent fault analysis and equipment maintenance.

[0124] Greatly improves the reliability and authority of the test process.

[0125] In precision testing, it is crucial to ensure the positional stability of the tested article. Any slight displacement can lead to invalid test results.

[0126] The article movement detection device ensures that only when the position is absolutely stable, the test data is reliable. This makes the output of the entire automated test system highly authoritative.

[0127] A hierarchical alarm and emergency mechanism is formed.

[0128] The system can now distinguish between different levels of abnormalities:

[0129] First-level abnormality (product defect): only trigger recording and sorting.

[0130] Second-level abnormality (poor state of the equipment itself): trigger automatic cleaning.

[0131] Third-level abnormality (mechanical safety risk): immediately interrupt the test and issue a strong warning, requiring manual intervention.

[0132] This hierarchical response mechanism ensures efficiency and safety, avoiding invalid alarms.

[0133] Further, it includes a personnel proximity detection device connected to the main control device.

[0134] The personnel proximity detection device is used to detect whether there is personnel approaching the article holder above the rotating disc mechanism.

[0135] The main control device controls the initial state of the personnel proximity detection device to be closed.

[0136] When the holder filling detection device detects that the article holder above the rotating disc mechanism is filled with articles, the main control device controls the personnel proximity detection device to be opened.

[0137] When the personnel proximity detection device detects that personnel are approaching the article holder above the rotating disc mechanism, the main control device controls the article movement detection device to be opened.

[0138] The above scheme can avoid missing detection of the displacement of the article caused by the collision between the person and the equipment.

[0139] Further, the timing device is connected with the main control device.

[0140] The timing device is used to start timing when the abnormal alarm device is turned on. The cumulative duration of the interruption of the automatic test process of the charging pile can be recorded, which is beneficial to subsequent management and analysis.

[0141] Further, the wireless communication device is connected with the main control device, and the main control device is connected with the remote monitoring terminal network through the wireless communication device to realize remote data interaction.

[0142] The automatic test method for the charging pile is used to test the charging pile by using the automatic test system for the charging pile.

Claims

1. An automated testing system for charging piles, characterized in that, It includes an appearance inspection and recognition device, a maintenance cycle judgment device, a camera dust accumulation detection device, an automatic cleaning and maintenance device, and a main control device, wherein the main control device is connected to the appearance inspection and recognition device, the maintenance cycle judgment device, the camera dust accumulation detection device, and the automatic cleaning and maintenance device respectively. The appearance inspection and identification device is used to identify whether the appearance of the electrical components inspected by the appearance inspection agency is abnormal. The maintenance cycle determination device is used to determine whether the cleaning and maintenance cycle of the testing equipment for car charging piles is abnormal. The camera dust accumulation detection device is used to detect whether dust has accumulated on the lens of a CCD camera; The automatic cleaning and maintenance device is used to automatically clean and maintain the lens of the CCD camera. The main control device controls the appearance detection and recognition device, maintenance cycle judgment device, camera dust accumulation detection device, and automatic cleaning and maintenance device to be initially turned off. When the appearance inspection mechanism is running, the main control device controls the appearance inspection and recognition device to turn on; When the appearance inspection and recognition device detects an abnormality in the appearance of the electrical component detected by the appearance inspection mechanism, the main control device controls the maintenance cycle judgment device to be turned on. When the maintenance cycle determination device determines that the cleaning and maintenance cycle of the detection equipment for the car charging pile is abnormal, the main control device controls the camera dust accumulation detection device to turn on. When the camera dust detection device detects dust accumulation on the lens of the CCD camera, the main control device controls the automatic cleaning and maintenance device to start.

2. The automated testing system for charging piles according to claim 1, characterized in that, It also includes a foreign object detection device, which is connected to the main control device; The foreign object detection device is used to detect whether there are foreign objects on the electrically connected components; The initial state of the foreign object detection device controlled by the main control device is off; When the appearance inspection and recognition device detects an abnormality in the appearance of the electrical component detected by the appearance inspection mechanism, the main control device controls the foreign object detection device to be turned on. When the foreign object detection device detects that there is no foreign object on the energized component, the main control device controls the maintenance cycle determination device to start.

3. The automated testing system for charging piles according to claim 1, characterized in that, It also includes a bracket placement detection device, a bracket vibration detection device, an item movement detection device, a test interruption device, and an abnormality warning device, and the main control device is connected to the bracket placement detection device, the bracket vibration detection device, the item movement detection device, the test interruption device, and the abnormality warning device respectively; The bracket holding detection device is used to detect whether there are items on the shelf above the turntable mechanism; The bracket vibration detection device is used to detect whether the storage bracket above the turntable mechanism is vibrating abnormally; The item movement detection device is used to detect whether the items placed on the shelf have shifted. The test interruption device is used to interrupt the testing process of the charging pile; The abnormality warning device is used to alert relevant personnel involved in the automated testing of charging piles.

4. The automated testing system for charging piles according to claim 3, characterized in that, The main control device controls the initial state of the bracket placement detection device, bracket vibration detection device, item movement detection device, test interruption device, and abnormal warning device to be off; When the turntable mechanism starts to operate, the main control device controls the bracket placement detection device to open. When the bracket placement detection device detects that there are items on the shelf above the turntable mechanism, the main control device controls the bracket vibration detection device to be turned on. When the bracket vibration detection device detects abnormal vibration of the storage bracket above the turntable mechanism, the main control device controls the item movement detection device to be activated. When the item movement detection device detects that the item placed on the shelf has shifted, the main control device controls the test interruption device and the abnormality warning device to be activated.

5. The automated testing system for charging piles according to claim 4, characterized in that, It also includes a personnel proximity detection device, which is connected to the main control device; The personnel proximity detection device is used to detect whether any personnel are approaching the storage bracket above the turntable mechanism; The main control device controls the personnel proximity detection device to be initially turned off; When the bracket holding detection device detects that there are items on the shelf above the turntable mechanism, the main control device controls the personnel to approach and activate the detection device. When the personnel proximity detection device detects that a person is approaching the shelf above the turntable mechanism, the main control device controls the item movement detection device to be activated.

6. The automated testing system for charging piles according to claim 4, characterized in that, It also includes a timing device, which is connected to the main control device; The timing device is used to start timing when the abnormality warning device is activated.

7. The automated testing system for charging piles according to claim 1, characterized in that, It also includes a wireless communication device, through which the main control device is connected to the remote monitoring terminal network.

8. An automated testing method for charging piles, characterized in that, The automated testing of charging piles is carried out using the automated testing system for charging piles as described in any one of claims 1-7.

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