Modified electric vehicle detection and identification system and detection and identification method

Abstract

The present invention discloses an electric vehicle speed measuring device, a modified electric vehicle detection and identification system and a detection and identification method. The speed measuring device includes a V-shaped bracket structure composed of a power arm and a support arm. A wheel support is installed on the inner side of the V-shaped bracket structure, and a speed measuring module is installed on one side of the wheel support. The speed measuring device can set up the electric two-wheeled vehicle and quickly detect the rear wheel speed. The detection and identification system includes a speed measuring device, a handheld PDA device and a cloud server. The speed measuring device and the handheld PDA device are electrically connected, and the handheld PDA device and the cloud server are communicatively connected. The vehicle information and the owner information can be sent to the cloud server through the handheld PDA device. The detection and identification method includes the steps of identity information acquisition, license plate recognition, frame number recognition, abnormal vehicle body modification recognition, OBD detection and the like. The present invention has a strong human-computer interaction function and information interaction capability, and can help managers quickly and accurately identify illegal modifications of electric two-wheeled vehicles in different situations.

Description

Technical Field

[0001] The present invention relates to the field of vehicle management, and in particular to an electric vehicle speed measuring device, a modified electric vehicle detection and identification system, and a detection and identification method. Background Art

[0002] Illegal modification of electric two-wheelers is common. For example, food delivery personnel modify electric two-wheelers to increase their speed, and modify scrapped electric vehicles to extend their service life. At present, illegal modification of electric vehicles mainly includes modifying high-power motors, removing speed limiters and pedal riding equipment, removing speed warning sound devices, adding or modifying batteries, adding umbrella racks and canopies, and spraying the body without authorization. Illegal modification of electric two-wheelers poses a major safety hazard and has become one of the illegal behaviors that managers strictly investigate for electric two-wheeler users.

[0003] At present, when investigating and dealing with illegal modifications of electric two-wheelers, managers mostly rely on their own experience to make judgments. Among them, modifications such as adding umbrella racks, canopies, and unauthorized spray painting of the body can be accurately identified by the naked eye, but for illegal modifications of high-power motors, modified batteries and other modifications to the internal performance of electric vehicles, relying on experience is far from enough. It is often necessary to send suspected illegally modified electric vehicles to designated locations for special inspections, which has cumbersome procedures and a high rate of misjudgment, seriously delaying the time of electric two-wheeler owners and the efficiency of managers. Summary of the invention

[0004] Purpose of the invention: In view of the problems existing in the prior art, the purpose of the present invention is to provide a portable electric vehicle speed measuring device. At the same time, the present invention also provides a modified electric vehicle detection and identification system and a modified electric vehicle detection and identification method, which can perform on-site detection of suspected modified electric vehicles and assist management personnel to accurately, quickly and comprehensively identify different degrees of illegal modifications of electric two-wheeled vehicles.

[0005] Technical solution: The electric vehicle speed measuring device described in the present invention comprises a pair of parallel arranged power arms, each power arm is provided with a support arm, and the support arm and its corresponding power arm form a V-shaped bracket structure; a wheel support is installed inside the V-shaped bracket structure, which can rotate within a preset angle range, and a speed measuring module is installed on one side of the wheel support;

[0006] The intersection of the support arm and the power arm is the equipment fulcrum; the nuts or load-bearing structures on both sides of the rear wheel axle of the electric two-wheeled vehicle are clamped on the wheel support. At this time, the power arm is in a tilted and tilted state. When the power arm is pressed down with the equipment fulcrum as the origin, the support arm rotates, thereby driving the wheel support to lift the electric two-wheeled vehicle; start the electric vehicle, and detect the wheel speed through the speed measurement module.

[0007] Furthermore, it includes a first communication module, which is electrically connected to the signal output end of the speed measuring module and is used to transmit the speed signal collected by the speed measuring module.

[0008] Furthermore, it includes a battery pack and a charging interface for power supply.

[0009] Furthermore, it includes one or more indicator lights for indicating the working status and / or abnormal rotation speed of the equipment.

[0010] Furthermore, a pulley is installed at the fulcrum of the equipment.

[0011] A modified electric vehicle detection and identification system including the electric vehicle speed measuring device, comprising a speed measuring device, a handheld PDA device and a cloud server;

[0012] The first communication module of the speed measuring device is electrically connected to the handheld PDA device, and after the speed measuring device obtains the speed of the rear wheel of the electric vehicle, the speed information is sent to the handheld PDA device;

[0013] The handheld PDA device is used by management personnel and is connected to the cloud server for collecting vehicle information and vehicle owner identity information and for data exchange with the cloud server.

[0014] Furthermore, the handheld PDA device includes a device body, which is provided with a display screen, buttons, a camera, a laser QR code scanning module, and a document printing module. The device body has a built-in circuit board and a battery. The circuit board is provided with an RFID ID card recognition module, a second communication module and a control unit. The RFID ID card recognition module and the second communication module are both electrically connected to the control unit, and the display screen, buttons, camera, laser QR code scanning module, and document printing module are respectively electrically connected to the control unit. The first communication module and the second communication module are wirelessly connected, and the second communication module is wirelessly connected to the cloud server.

[0015] Furthermore, it also includes an OBD device, whose interface is adapted to the OBD interface of the electric vehicle and is used to read the entire vehicle information of the electric vehicle, wherein the entire vehicle information of the electric vehicle includes battery voltage, battery temperature, and motor speed; the OBD device includes a third communication module, which is communicatively connected to the second communication module of the handheld PDA device. After the OBD device reads the entire vehicle information of the electric vehicle, it sends the entire vehicle information of the electric vehicle to the handheld PDA device.

[0016] A detection and identification method based on the modified electric vehicle detection and identification system includes the following contents:

[0017] (1) Read the ID card information of the inspected person through the RFID ID card recognition module of the handheld PDA device; turn on the camera of the handheld PDA device to take photos of the suspected modified electric vehicle with abnormal body; bind the ID card information of the inspected person and the evidence photo; upload the ID card information of the person and the evidence photo to the cloud server through the second communication module;

[0018] (2) The license plate is photographed by the camera of the handheld PDA device, and the license plate number is automatically recognized by the built-in image algorithm; the ID card information of the inspected person is bound to the license plate number, and the ID card information and license plate number of the inspected person are uploaded to the cloud server through the second communication module;

[0019] (3) Aim the laser QR code scanning module of the handheld PDA device at the frame number QR code or barcode to obtain the frame number information, bind the ID card information of the inspected person with the frame number information, and upload the ID card information and frame number information of the inspected person to the backend cloud server through the second wireless module;

[0020] (4) Use the speed measuring device to set up the electric two-wheeled vehicle, plug the OBD device into the OBD interface of the electric two-wheeled vehicle, and turn on the speed measuring device at the same time. After the speed measuring device, the OBD device and the handheld PDA device have established a communication connection, the handheld PDA device enters the OBD detection mode. At this time, the administrator rotates the throttle handle to transfer the speed of the electric two-wheeled vehicle to the fastest. At the same time, the OBD device sends the internal parameters of the electric two-wheeled vehicle back to the handheld PDA device; if abnormal data appears, the handheld PDA device will prompt the abnormality and bind the abnormal data with the ID card information of the person being inspected;

[0021] (5) The speed measuring module detects the speed of the rear wheel of the electric vehicle, and transmits the speed data to the first communication module, which transmits the speed data to the handheld PDA device; if abnormal data appears, the handheld PDA device binds the abnormal data with the ID card information of the person being inspected, and uploads the abnormal data and the ID card information of the person being inspected to the backend cloud server through the first wireless module;

[0022] (6) After completing all the above tests, the handheld PDA device outputs the test results based on the actual test results, binds the test results with the ID card information of the person being tested, and uploads them to the cloud server.

[0023] Furthermore, in step (5), a rotation speed threshold is set, and data detected by the speed measurement module and greater than the rotation speed threshold is defined as valid data, and only the valid data is transmitted to the first communication module.

[0024] Compared with the prior art, the present invention has the following significant improvements:

[0025] 1. The equipment has a compact and stable structure, is easy to carry and easy to operate.

[0026] 2. Wireless communication is used to transmit information between devices, which can avoid the inconvenience and safety hazards caused by complex wiring.

[0027] 3. The system as a whole has efficient human-computer interaction and information interaction functions. Through on-site detection of suspected modified electric vehicles, it realizes the intelligent identification of illegally modified electric vehicles.

[0028] 4. In terms of detection effect, the system is highly intelligent and has a low error rate. It can help managers quickly and accurately identify illegal modifications of electric two-wheelers, including batteries, motors, etc., which is of significant significance for the management of electric vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the speed measuring device;

[0030] Figure 2 The state diagram of the electric two-wheeler before setting up the speed measuring equipment;

[0031] Figure 3 The state diagram of the electric two-wheeler after setting up the speed measuring equipment;

[0032] Figure 4 This is a schematic diagram of the module structure of the modified electric vehicle detection and identification system;

[0033] Figure 5 This is a schematic diagram of the interface of the OBD device. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is explained in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] like Figure 1 As shown, an electric vehicle speed measuring device comprises a pair of parallel power arms 1, each power arm 1 is provided with a support arm 2, the support arm 2 on each side and its corresponding power arm 1 form a V-shaped bracket structure, the V-shaped bracket structures on both sides are symmetrical, and the distance between the two V-shaped bracket structures is adapted to the spacing between the two sides of the rear wheel axle of the electric two-wheeled vehicle.

[0036] The intersection of the power arm 1 and the support arm 2 is used as the fulcrum of the equipment; a wheel support 3 is installed on each side of the V-shaped bracket structure, and the rigidity of the wheel support 3 should be able to bear the weight of the electric two-wheeled vehicle; secondly, the shape and size of the wheel support 3 should be compatible with the shape and size of the nuts or load-bearing structures on both sides of the rear wheel axle of the electric two-wheeled vehicle, and a circular opening structure, a U-shaped structure or a V-shaped structure can be selected. In this embodiment, a reinforcing rib 15 is provided between the power arm 1 and the support arm 2, and a V-shaped wheel support 3 is installed on the inner side of the support arm 2. A groove is provided on the V-shaped wheel support 3, and the wheel support 3 can rotate within a preset angle range relative to the support arm 2. The speed measuring module 4 is installed on the reinforcing rib 15 on one side of the wheel support 3 to detect the wheel speed; preferably, the speed measuring module 4 is a laser speed meter.

[0037] In order to facilitate the application of force, the device also includes a handle 12, and the two power arms 1 are rigidly connected to the handle 12. Preferably, the power arm 1, the support arm 2, and the handle 12 use an integrally formed metal frame to form the load-bearing structure of the speed measuring device, and other components are installed on the metal frame.

[0038] Furthermore, a mounting plate 13 is provided between the two power arms 1, and a first communication module 5 and a battery pack 6 are provided in the mounting plate 13. A charging interface 7 is provided on one side of the mounting plate 13, and a button 14 and three indicator lights are provided on the mounting plate 13, namely, indicator light I 9, indicator light II 10 and indicator light III 11. Among them, the first communication module 5 is electrically connected to the speed measuring module 4, and is used to transmit the speed signal collected by the speed measuring module 4. The battery pack 6 is responsible for powering the speed measuring device, and the external charger charges the battery pack 6 through the charging interface 7. The button 14 is the power switch button of the device; for example, when the button 14 is pressed once, the speed measuring device is turned on, and when the button 14 is long pressed, the speed measuring device is turned off.

[0039] The indicator light can be used to prompt the speed measuring device to start up and indicate the working status of the first communication module 5 and the battery pack 6. For example, when the device is started up, the three indicator lights flash alternately three times. The indicator light I 9 is always on, indicating normal wireless communication, the indicator light I 9 flashes, indicating abnormal wireless communication, the indicator light II 10 flashes, indicating low battery pack voltage, and the indicator light II 10 flashes, indicating that it is charging. In addition, the indicator light can also be used to prompt abnormal rotation speed. At this time, the indicator light is electrically connected to the control module of the speed measuring module 4. When the rotation speed detected by the speed measuring module 4 exceeds the threshold, the control module controls the corresponding indicator light to light up. For example, the indicator light III 11 is always on, indicating that the speed of the electric two-wheeled vehicle is abnormal. In this embodiment, a pulley 8 is installed at the fulcrum of the device to facilitate the carrying of the device.

[0040] The process of speed detection of electric two-wheeled vehicles using the above equipment is as follows:

[0041] Push the speed measuring device, align the wheel support 3 with the nut or load-bearing structure of the rear wheel axle of the electric two-wheeled vehicle, and clamp the nuts or load-bearing structures on both sides into the grooves of the wheel support 3. At this time, the fulcrum of the device is against the ground, and the power arm 1 and the support arm 2 are in Figure 2 The tilted state shown.

[0042] With the fulcrum of the equipment as the origin, hold the handle 12 and press down in the direction of the arrow. The power arm 1 drives the support arm 2 to rotate counterclockwise. According to the lever principle, under the drive of the power arm 1, the support arm 2 drives the wheel support 3 to rotate. Due to the contact between the wheel support 3 and the nut or load-bearing structure of the rear wheel axle, the support arm 2 applies an oblique upward force to the rear wheel axle of the electric two-wheeled vehicle ( Figure 2 The direction of the force points to the upper left in the process), thereby raising the electric two-wheeled vehicle backwards. During this process, the wheel support 3 rotates relative to the support arm 2, but always tightly clamps the nut or load-bearing structure of the rear wheel axle. After the electric vehicle is raised, the power arm 1 and the support arm 2 are tightly pressed by the wheel support 3, forming a Figure 3 Status shown.

[0043] Power on the electric vehicle, turn the throttle of the electric two-wheeled vehicle, and detect the actual speed of the rear wheel through the speed measuring module 4. The speed can be directly displayed through a digital tube or a liquid crystal tube, or the speed related data detected by the speed measuring module 4 can be transmitted to a remote device through the first communication module 5. After the test is completed, the speed measuring device is turned off by pressing the button 14.

[0044] It should be noted that the installation positions of the wheel support 3 and the speed measuring module 4 are not quantitatively limited in this embodiment, but the positions of the two should meet the following requirements: the distance from the wheel support 3 to the equipment fulcrum should be greater than the radius of the rear wheel of the electric two-wheeled vehicle to ensure that the rear wheel of the electric vehicle can be lifted. In the process of lifting the rear wheel, as the power arm 1 and the support arm 2 rotate, the speed measuring module 4 will also be displaced. Regardless of the initial position of the speed measuring module 4, its Figure 3 The rotation of the wheel should be detectable in all states; preferably, the position of the speed measuring module 4 is adjustable so as to adapt to the detection requirements of the rear wheels of electric vehicles with different diameters.

[0045] like Figure 4 As shown, a modified electric vehicle detection and identification system including the above speed measuring device includes a speed measuring device, a handheld PDA device, an OBD device and a cloud server. The speed measuring device is electrically connected to the handheld PDA device; the OBD device is adapted to the OBD interface of the electric vehicle and is electrically connected to the handheld PDA device; the handheld PDA device is electrically connected to the cloud server.

[0046] After the speed measuring device is turned on, a communication connection is established with the handheld PDA device through the first communication module 5; the first communication module 5 is responsible for transmitting the relevant data of the speed measuring device to the handheld PDA device. When the laser speed measuring module 4 detects the rotation speed of the rear wheel of the electric two-wheeled vehicle, the rotation speed data is transmitted to the handheld PDA device through the first communication module 5.

[0047] For electric vehicles with OBD interfaces, OBD devices are further used to obtain parameters such as battery voltage, battery temperature, motor speed, and other sensor information of electric vehicles. The OBD device consists of an OBD interface, a switch button, a third communication module, and an indicator light. The OBD device is inserted into the OBD interface of the electric two-wheeled vehicle, and the relevant information of the whole vehicle is transmitted back to the handheld PDA device through a wireless signal. By identifying the abnormal data, it is determined whether the electric vehicle has been illegally modified. For example, illegal modification of the battery will cause abnormal output voltage, and illegal modification of the motor will cause abnormal speed. It should be noted that the speed measuring device measures the actual speed of the physical wheel without load, and the data detected by the OBD device here comes from the motor controller, which is the motor speed detected by the motor controller. The speed of the motor is not equal to the speed of the wheel. If the speed change device is modified, the ratio of the two speeds will be different.

[0048] Specifically, the OBD device itself has no power supply and needs to be plugged into an electric two-wheeled vehicle to have power.

[0049] like Figure 5 As shown, the OBD device is equipped with an OBD interface 16, which is compatible with the electric vehicle OBD interface and can be directly plugged into the electric two-wheeled vehicle OBD interface to read the entire vehicle information of the electric two-wheeled vehicle, including battery voltage, battery temperature, motor speed, other sensor information, etc.

[0050] The switch button is used to turn the OBD device on and off.

[0051] The indicator light is used to indicate normal / abnormal wireless communication and the power supply status of the device.

[0052] The third wireless module is responsible for transmitting the relevant data information read from the electric two-wheeled vehicle to the handheld PDA device.

[0053] Similarly, the OBD device should establish a communication connection with the handheld PDA device; the handheld PDA device is used by management personnel to collect information. In addition, it will also process some data sent back by speed measuring equipment and OBD equipment, and upload some directly collected information to the background cloud server.

[0054] The handheld PDA device includes a device body, which is provided with a display screen, a camera, a laser QR code scanning module, a document printing module, and one or more mechanical buttons. The display screen includes multiple touch screen buttons, and the touch screen buttons include an identity information recognition button, a license plate recognition button, a frame number recognition button, a body abnormal modification recognition button, an OBD detection button, an information submission button, a document output button, etc. The device body is built with a circuit board and a battery. The circuit board is provided with an RFID ID card recognition module, a second communication module, and a control unit. Among them, the RFID ID card recognition module and the second communication module are both electrically connected to the control unit; the display screen, the buttons, the camera, the laser QR code scanning module, and the document printing module are electrically connected to the control unit respectively.

[0055] The speed measuring device and the handheld PDA device establish a wireless communication connection relationship through the first communication module 5 and the second communication module; the speed measuring device and the OBD device use interface communication; the OBD device and the handheld PDA device establish a wireless communication connection relationship through the second communication module and the third communication module; the handheld PDA device and the background cloud server use wireless communication connection (such as WiFi, 2G / 3G / 4G / 5G, etc.). The speed measuring device, OBD device, and handheld PDA device under the wireless communication connection constitute a local area network, in which the handheld PDA device is the main device and can search for the speed measuring device and OBD device bound to it within a certain range. For example, when the handheld PDA device is powered on, the first communication module and the third communication module will broadcast a heartbeat data packet respectively, waiting for the search of the handheld PDA bound to it, and once it is searched by the handheld PDA, it will join the network of the handheld PDA.

[0056] Specifically, in a handheld PDA device, the display screen mainly displays some necessary information and inputs relevant information for managers. The touch screen buttons are mainly used to start different working states or working modes. For photo mode, video mode, laser QR code scanning mode, RFID ID card recognition mode, and OBD detection mode, corresponding mode icons can be designed and displayed on the display screen. Managers start the required mode through the touch screen buttons. After entering the corresponding mode, the current PDA working status will also be prompted on the screen.

[0057] Mechanical buttons are mainly used to turn on, off, and restart the device. For some commonly used working modes, you can also quickly start them by long pressing the mechanical button.

[0058] The battery is responsible for powering the PDA device and can be removed and replaced. The charging port is used to connect an external charger to charge the PDA device.

[0059] The camera is responsible for taking photos in photo mode and recording videos in video mode.

[0060] The laser QR code scanning module is responsible for scanning and identifying the frame number barcode and QR code to obtain the frame number information.

[0061] The RFID ID card recognition module is responsible for scanning the ID card and obtaining the ID card information.

[0062] The second communication module will actively search for the speed measuring device and OBD device bound to it, and will actively connect the speed measuring device and OBD device to its own network. The second communication module is mainly responsible for receiving the data information sent back by the speed measuring device and the OBD device. When the handheld PDA device obtains this part of the data, it is processed by the control unit. The processed data can be uploaded to the background cloud server through the second communication module. At the same time, the data of the handheld PDA device itself (ID card information, vehicle information, photos and videos of abnormal vehicle body, etc.) can also be uploaded through the second communication module.

[0063] The document printing module is used to print the relevant rectification lists issued by the management personnel to the illegal modification personnel.

[0064] Based on the above modified electric vehicle detection system, the present invention also provides a modified electric vehicle detection and identification method, which specifically includes the following contents:

[0065] During the management process, the manager first requires the inspected person to show his / her ID card. He / she can click the identity information recognition button on the handheld PDA device to enter the RFID ID card recognition mode and read the ID card information of the inspected person through the RFID ID card recognition module. After the handheld PDA device correctly recognizes the ID card information, it enters the inspection interface. The display screen interface includes the license plate recognition button, frame number recognition button, abnormal body modification recognition button, OBD detection button, information submission button, and document output button.

[0066] After entering the inspection mode, if the manager finds that the electric two-wheeled vehicle has similar modifications or the speed limiter, pedal riding equipment has been removed, an umbrella rack, a canopy has been added, or special vehicle-specific or similar signs, sirens, sign lights have been sprayed, installed, or used without authorization, etc., the manager can start the photo mode to take photos for evidence through the mechanical button, or click the abnormal body modification identification button on the screen to take photos for evidence. The wireless handheld PDA device will bind the evidence photo to the person's ID card information. The manager clicks the information submission button, and the wireless handheld PDA device uploads the relevant information to the background cloud server through the wireless module.

[0067] After entering the inspection mode, the manager can enter the license plate intelligent recognition mode by clicking the license plate recognition button. At this time, the manager points the camera at the license plate, and the handheld PDA device automatically recognizes the license plate number through the built-in image algorithm and binds the license plate number information with the ID card information of the person being inspected. The manager clicks the information submission button, and the handheld PDA device uploads the relevant information to the background cloud server through the second communication module.

[0068] After entering the inspection mode, the manager can click the frame number recognition button or long press the mechanical button to enter the frame number recognition mode. At this time, the laser QR code scanning module starts working. The manager aims at the frame number QR code or barcode, and the handheld PDA device automatically recognizes the frame number and binds the frame number information with the ID card information of the person being inspected. The manager clicks the information submission button, and the wireless handheld PDA device uploads the relevant information to the background cloud server through the wireless module.

[0069] After entering the inspection mode, the administrator can also click the OBD detection button to enter the OBD detection mode. At this time, the handheld PDA device must first detect whether the speed measuring device and the OBD device have been connected to the network. If no prompt box pops up, prompt the administrator whether the speed measuring device has been turned on. The administrator should use the speed measuring device to set up the electric two-wheeled vehicle, plug the OBD device into the OBD interface of the electric two-wheeled vehicle, and turn on the speed measuring device. After waiting for the speed measuring device and the OBD device to be connected to the network, the handheld PDA device enters the OBD detection mode. At this time, the interface will prompt the administrator to rotate the throttle handle to transfer the speed of the electric two-wheeled vehicle to the fastest and maintain it for about 10 seconds. At this time, the OBD device will transmit the data collected by the internal sensor of the electric two-wheeled vehicle to the handheld PDA device through the third communication module. If abnormal data appears, the handheld PDA device will highlight the indicator light and bind the abnormal data with the ID card information of the person being inspected. At the same time, after the speed measuring device is turned on, the test module enters the speed detection state. When the speed measuring module detects that the wheel speed is greater than 30 revolutions per minute, it considers the collected data to be valid data, and only transmits the valid data to the first communication module. The first communication module transmits the speed information to the handheld PDA device, that is, when the speed collected by the speed measuring module rises from 0 to a value greater than a certain value and stabilizes for a period of time, it is considered to be a valid value, and the valid value is sent to the control unit of the handheld PDA device for processing and analysis. If abnormal data appears, the handheld PDA device will highlight the abnormal data and bind the abnormal data to the ID card information of the person being inspected. The manager clicks the information submission button, and the handheld PDA device uploads the relevant information to the background cloud server through the second wireless module.

[0070] After completing all the tests, the manager clicks the document output button, and the wireless handheld PDA device will print the relevant test results based on the actual test results, and bind the final report to the ID card information of the person being inspected, and upload it to the background cloud server.

Claims

1. A modified electric vehicle detection and identification system, characterized in that: Including speed measuring equipment, handheld PDA equipment, cloud server and OBD equipment; The speed measuring device comprises a pair of power arms (1) arranged in parallel, each power arm (1) being provided with a support arm (2), the support arm (2) and its corresponding power arm (1) forming a V-shaped bracket structure; a wheel support member (3) is mounted on the inner side of the V-shaped bracket structure, the wheel support member (3) being capable of rotating within a preset angle range, and a speed measuring module (4) is mounted on one side of the wheel support member (3); The intersection of the support arm (2) and the power arm (1) is the equipment fulcrum; nuts or load-bearing structures on both sides of the rear wheel axle of the electric two-wheeled vehicle are clamped on the wheel support member (3), and the power arm (1) is in an inclined and tilted state. When the power arm (1) is pressed down with the equipment fulcrum as the origin, the support arm (2) rotates, thereby driving the wheel support member (3) to lift the electric two-wheeled vehicle; the electric vehicle is started, and the wheel speed is detected by the speed measurement module (4); The speed measuring device comprises a first communication module (5), which is electrically connected to the signal output end of the speed measuring module (4) and is used to transmit the speed signal collected by the speed measuring module (4); The first communication module (5) of the speed measuring device is electrically connected to the handheld PDA device, and after the speed measuring device obtains the speed of the rear wheel of the electric vehicle, the speed information is sent to the handheld PDA device; The handheld PDA device is used by the management personnel and is connected to the cloud server for collecting vehicle information and owner identity information and for data exchange with the cloud server; The handheld PDA device comprises a device body, on which a display screen, buttons, a camera, a laser two-dimensional code scanning module, and a document printing module are provided. The device body has a circuit board and a battery built in. The circuit board is provided with an RFID ID card recognition module, a second communication module, and a control unit; the RFID ID card recognition module and the second communication module are both electrically connected to the control unit, the display screen, buttons, camera, laser two-dimensional code scanning module, and document printing module are respectively electrically connected to the control unit, the first communication module (5) is wirelessly connected to the second communication module, and the second communication module is wirelessly connected to the cloud server; The interface of the OBD device is adapted to the OBD interface of the electric vehicle and is used to read the entire vehicle information of the electric vehicle, wherein the entire vehicle information of the electric vehicle includes battery voltage, battery temperature, and motor speed; the OBD device includes a third communication module, which is communicatively connected to the second communication module of the handheld PDA device. After the OBD device reads the entire vehicle information of the electric vehicle, the entire vehicle information of the electric vehicle is sent to the handheld PDA device.

2. The modified electric vehicle detection and identification system according to claim 1, characterized in that: It comprises a battery pack (6) for supplying power and a charging interface (7).

3. The modified electric vehicle detection and identification system according to claim 1, characterized in that: Includes one or more indicator lights to indicate the equipment's operating status and / or abnormal rotation speed.

4. The modified electric vehicle detection and identification system according to claim 1, characterized in that: A pulley (8) is installed at the fulcrum of the equipment.

5. A detection and identification method based on the modified electric vehicle detection and identification system as claimed in claim 1, characterized in that: It includes the following: (1) Read the ID card information of the inspected person through the RFID ID card recognition module of the handheld PDA device; turn on the camera of the handheld PDA device to take photos of the suspected modified electric vehicles with abnormal body parts to collect evidence; bind the ID card information of the inspected person and the evidence photos; Upload the personnel's ID card information and evidence photos to the cloud server through the second communication module; (2) The license plate is photographed by the camera of the handheld PDA device, and the license plate number is automatically recognized by the built-in image algorithm; the ID card information of the inspected person is bound to the license plate number, and the ID card information and license plate number of the inspected person are uploaded to the cloud server through the second communication module; (3) Aim the laser QR code scanning module of the handheld PDA device at the vehicle frame number QR code or barcode to obtain the vehicle frame number information, and bind the ID card information of the person being inspected with the vehicle frame number information, and upload the ID card information and vehicle frame number information of the person being inspected to the backend cloud server through the second wireless module; (4) Use the speed measuring device to lift the electric two-wheeled vehicle, plug the OBD device into the OBD interface of the electric two-wheeled vehicle, and turn on the speed measuring device. After the speed measuring device, the OBD device and the handheld PDA device have established a communication connection, the handheld PDA device enters the OBD detection mode. At this time, the administrator rotates the throttle handle to transfer the speed of the electric two-wheeled vehicle to the fastest. At the same time, the OBD device sends the internal parameters of the electric two-wheeled vehicle back to the handheld PDA device; If abnormal data appears, the handheld PDA device will prompt the abnormality and bind the abnormal data with the ID card information of the person being checked; (5) Detecting the speed of the rear wheel of the electric vehicle through the speed measurement module, transmitting the speed data to the first communication module, and the first communication module transmitting the speed data to the handheld PDA device; If abnormal data appears, the handheld PDA device binds the abnormal data with the ID card information of the person being checked, and uploads the abnormal data and the ID card information of the person being checked to the backend cloud server through the first wireless module; (6) After completing all the above tests, the handheld PDA device outputs the test results based on the actual test results, binds the test results with the ID card information of the person being tested, and uploads them to the cloud server.

6. The detection and identification method according to claim 5, characterized in that: In step (5), a rotation speed threshold is set, and data detected by the speed measurement module and greater than the rotation speed threshold is defined as valid data, and only the valid data is transmitted to the first communication module.

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