Preparation method of charging pile electronic lock motor

Abstract

The invention provides a preparation method of a charging pile electronic lock motor, which comprises the following steps: S1, preparing a micromotor and a reduction gearbox, and arranging an absolute value encoder at the output end of the micromotor; s2, providing a high-definition pinhole camera device, and preparing a face recognition system and / or a fingerprint recognition system; s3, a main control circuit board communicating with the cloud server is prepared, data transmitted by the face recognition system and / or the fingerprint recognition system is sent to the user intelligent mobile terminal, the user intelligent mobile terminal can carry out charging confirmation according to the received sent data and a power supply access signal transmitted by the vehicle-mounted computer, a confirmation signal is formed, and charging is carried out according to the confirmation signal. And the cloud server receives the confirmation signal sent by the household intelligent mobile terminal and sends a formal charging start signal to the charging pile. The intelligent charging gun comprises the intelligent motor prepared by the method, and the stability and the reliability of charging connection and the effectiveness and the accuracy of billing are improved.

Description

Technical Field

[0001] The invention relates to a method for preparing a charging pile electronic lock motor, and belongs to the field of intelligent lock body driving. Background Art

[0002] The charging pile electronic lock motor is a micro drive motor, which is assembled by a micro motor and a gearbox structure reducer. It is a reduction motor device. Micro drive motors include DC brush motors, DC brushless motors, stepper motors, hollow cup motors, and servo motors; reduction gearboxes include traditional planetary gearboxes, cylindrical gearboxes, and worm gears. As long as the existing locking scheme is related to billing, the goal is to prevent billing when it is loose. Therefore, the plugging and unplugging force of the electric gun and the reliability of the locking are improved.

[0003] Therefore, in terms of driving, it is necessary to ensure the stability of the locking and unlocking positions of the driving rod, and its essence lies in the matching of the tooth position of the reduction gear and the number of rotations of the motor. This is because: when the reduction gear and the motor are assembled in place, the desired locking and unlocking positions are determined, and the tooth position of any gear is the back and forth movement under this premise, and the number of motor turns is also fixed in the process of locking and unlocking. Therefore, there is a fixed matching relationship between this back and forth movement and the number of turns. Once this fixed relationship deviates to a certain threshold, it will not lock in place or even not lock.

[0004] Therefore, how to monitor the matching relationship between the tooth position and the number of motor rotations becomes a key issue in solving the self-intelligent judgment of electronic locks. Summary of the invention

[0005] In order to solve the above problems, the present invention considers the following aspects: first, the reducer is modified by setting a device therein that can monitor the tooth position of any rotating gear; second, the motor output end is modified so that the number of motor turns can be monitored; third, considering connecting with the on-board computer to establish a confirmation relationship between the battery system charging signal and the locking confirmation.

[0006] In view of the above considerations, the present invention provides a method for preparing a charging pile electronic lock motor, comprising the following steps: S1 preparing a micromotor and a reduction box, setting an absolute encoder at the output end of the micromotor, connecting the output end of the absolute encoder to a driving gear, so that the driving gear is meshed with a gear set in the reduction box;

[0007] S2 provides a high-definition pinhole camera device, which is mounted on the reduction gear box and is used to align the gear set for taking pictures, and at the same time prepares a face recognition system and / or a fingerprint recognition system;

[0008] S3 prepares a main control circuit board that communicates with the cloud server, which is used to receive data from an absolute value encoder, a high-definition pinhole camera device, a face recognition system and / or a fingerprint recognition system, and sends the data from the face recognition system and / or the fingerprint recognition system to the user's smart mobile terminal, so that the user's smart mobile terminal can confirm charging according to the received data and the power access signal from the on-board computer to form a confirmation signal, so that the cloud server receives the confirmation signal sent by the household smart mobile terminal, and sends a formal charging start signal to the charging pile to start the charging program, wherein,

[0009] The reduction gearbox includes a housing cavity for accommodating the high-definition pinhole camera device. The absolute value encoder, the high-definition pinhole camera device, the face recognition system and / or the fingerprint recognition system share the same power supply with the micromotor, and a transformer is provided at the output end of the power supply to meet the power supply waveform of the absolute value encoder, the high-definition pinhole camera device, the face recognition system and / or the fingerprint recognition system.

[0010] Optionally, the high-definition pinhole camera device includes a high-definition pinhole camera, a lighting device, and a control chip that communicates with a main control circuit board.

[0011] Optionally, the lighting device includes an LED and a light homogenizing plate arranged in front of the LED.

[0012] Optionally, the gear group to be aligned is a predetermined positioning gear on the gear group, and the positioning gear includes two calibration teeth, which are respectively used to calibrate the locking position and unlocking position of the rotating rod of the gear group at the output end of the reduction gear box using the high-definition pinhole camera device.

[0013] Optionally, the main control circuit board processes and analyzes whether the locking position and the unlocking position are offset by more than a threshold value according to the received data from the absolute value encoder and the calibration data of the two calibration teeth from the pinhole camera device.

[0014] Optionally, two marking teeth for marking the locking position and the unlocking position are respectively provided with markers.

[0015] Preferably, the markers are different colors painted on the two calibration teeth respectively.

[0016] More preferably, the accommodating cavity is arranged above the positioning gear, and the different colors are respectively located on the non-meshing surfaces of the two calibration teeth.

[0017] Optionally, the face recognition system and the fingerprint recognition system respectively include a micro camera arranged on the electron gun, and a fingerprint sensor, and include respective identification chips that communicate with the main control circuit board. The respective identification chips can respectively detect whether the same face and the same fingerprint are no longer recognized based on the first recognition of the face and the first recognition of the fingerprint, and subsequently detect whether the same face and the same fingerprint are no longer recognized, so that multiple recognition operations can generate an electron gun connection completion signal as the data transmitted by the face recognition system and / or fingerprint recognition system received by the main control circuit board.

[0018] Preferably, the main control circuit board can periodically collect signals from the micro camera and the fingerprint sensor.

[0019] Preferably, the periodic collection is performed every 1-3 seconds, and the duration of the subsequent re-detection is 2 seconds to 15 seconds.

[0020] Optionally, the method for generating the power access signal from the on-board computer is:

[0021] After receiving the electron gun connection completion signal, the S3-1 main control circuit board sends the signal to the cloud server;

[0022] The S3-2 cloud server controls the charging pile to pulse start a test charge. After the on-board computer recognizes the battery test charge signal, it uses the test charge signal as the power access signal.

[0023] Optionally, the trial charging time is 5s-30s, and is included in the entire charging time.

[0024] It is understandable that when a person holds the electron gun and connects it to the charging port or his face is photographed and the fingerprint of the preset holding part of the electron gun is sensed, the person will release the holding part after the connection is completed, and will most likely leave the range of the face that can be photographed by the microcamera on the electron gun, so that it can be confirmed multiple times at subsequent times that the same face and / or the same fingerprint are not recognized again. The recognition chip thus determines that the connection is complete to generate an electron gun connection completion signal as the data from the face recognition system and / or fingerprint recognition system received by the main control circuit board, and transmit the data to the main control circuit board, which is finally sent by the main control circuit board to the smart mobile terminal for reception. At this time, the user level confirms based on the received data and the power access signal from the on-board computer to officially start charging, thereby ensuring the accuracy of the charging connection and billing.

[0025] In addition, since the trial charging time is included in the charging time, there will be no billing loss. Users only need to confirm on the smart mobile terminal to immediately connect to the formal charging program after the trial charging is completed, without too much waiting time. This ensures both the reliability confirmation of locking and unlocking, and the double confirmation of charging electrical connection confirmation, so that there is no loss in charging process billing, the charging plug-in process does not change, and the time consumption does not increase significantly, while ensuring the stability of the mechanical and electrical connection states, as well as lossless billing and lossless charging.

[0026] Optionally, the main control circuit board processes and analyzes whether the lock position and the unlock position are offset beyond a threshold according to the received data from the absolute value encoder and the calibration data of two calibration teeth from the high-definition pinhole camera device, specifically including:

[0027] S3-3 The control chip triggers the high-definition pinhole camera device to take two standard macro images of the positioning gear as standard images corresponding to the locking position and the unlocking position, respectively, according to the instructions issued by the main control circuit board after the absolute encoder is detected at the positions corresponding to the locking position and the unlocking position, and transmits the two standard images to the main control circuit board as calibration data, which is cropped by the main control circuit board to leave only the rectangular partial image containing the complete marker;

[0028] S3-4 In the actual locking and unlocking operations, the high-definition pinhole camera device is triggered to take two measured macro images of the positioning gear as in step S3-3, and the images are cropped in the same manner;

[0029] S3-5 The main control circuit board uses the two sides of the partial image as the horizontal and vertical coordinate axes of the rectangular coordinate system, merges the partial image corresponding to the locked position and the unlocked position with the corresponding partial image after being cropped from the measured macro image, extracts the outline containing the marker through the edge recognition algorithm, and calculates the horizontal and vertical spans of the outline in the rectangular coordinate system, Sp x and Sp y , set the horizontal and vertical span thresholds Th respectively x and Th y , if Sp x ≤Th x And Sp y ≤Th y If the key is locked, it indicates that the locking and unlocking are successful, otherwise the main control circuit board issues a prompt message.

[0030] Optionally, the main control circuit board and the on-board computer are connected to the user's smart mobile terminal using Bluetooth; the prompt information issued by the main control circuit board includes: any one of: voice emitted by the electron gun, an alarm sent to the electron gun display screen, and an alarm sent to the user's smart mobile terminal.

[0031] In one aspect, the present invention provides a charging gun provided with a smart motor prepared by the above method, comprising a main body, a charging cable connected to the main body, a grip portion provided on the main body, a drive device compartment extending from the grip portion and connected to the main body, and a display screen.

[0032] The holding part is hollow and connected with the driving device compartment, the intelligent motor is arranged in the hollow part and the driving device compartment, wherein the micromotor, the reduction gearbox, and the high-definition pinhole camera device are arranged in the driving device compartment, the face recognition system and / or the fingerprint recognition system, the main control circuit board, and the display screen are arranged in the hollow part, the holding part has a face recognition area and / or a fingerprint recognition area, and a display area of ​​the display screen, and the hollow part and the driving device compartment are also provided with a wire collection channel for wiring of the absolute value encoder, the high-definition pinhole camera device, the micromotor, the face recognition system and the fingerprint recognition system, the main control circuit board, and the display screen for signal transmission. Part of the hollow part and the main body hollow part also have a power supply line for powering the absolute value encoder, the high-definition pinhole camera device, the micromotor, the face recognition system and the fingerprint recognition system, the main control circuit board, and the display screen.

[0033] Beneficial Effects

[0034] 1. A high-definition camera is introduced into the reduction box of the selected positioning gear to shoot it. At the same time, the absolute value encoder set on the micromotor is used to realize real-time monitoring of the locking and unlocking positions, and monitoring and confirmation of mechanical plugging and unplugging are realized.

[0035] 2. Use face recognition and fingerprint recognition technology to confirm the completion of the plug-in and unplug actions, and attempt to confirm charging, achieving dual confirmation of mechanical and electrical connections, and including the trial charging time in the total charging time. Therefore, on the basis of stable connection, billing will not be missed or over-billed, thereby improving the stability and reliability of electric vehicle charging connections, as well as the effectiveness and accuracy of billing. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The method for preparing a charging pile electronic lock motor shown in Example 1 of the present invention involves the construction and installation of a driving device and a high-definition pinhole camera device.

[0037] Figure 2 A schematic diagram of the structure of a charging gun according to Embodiment 2 of the present invention, showing the installation positions of a driving device, a high-definition pinhole camera device, a face recognition system, and a fingerprint recognition system in the charging gun, and a schematic diagram of a front view of a screen display,

[0038] Figure 3 A simplified algorithm flow chart of whether the locking is successful, taking the locking position as an example;

[0039] Among them, 1-micromotor, 11-micromotor output end, 12-absolute encoder, 13-absolute encoder output end, 2-reduction box, 21-micromotor cavity, 22-accommodating cavity, 23-positioning gear, 24-calibration tooth A, 25-calibration tooth B, 26-color A, 27-color B, 28-rotating rod, 3-high-definition pinhole camera device, 40-thumb, 41-main body, 42-charging cable, 43-grip part, 44-drive device compartment, 45-display screen, 46-face recognition system, 47-fingerprint recognition system, 48-main control circuit board, 49-wire collection channel, 50-power supply line. DETAILED DESCRIPTION

[0040] Example 1

[0041] This embodiment provides a method for preparing a charging pile electronic lock motor, comprising the following steps:

[0042] Step S1 is to prepare the micro motor 1 and the reduction box 2, thereby providing a driving device for the lock body.

[0043] like Figure 1 As shown, in order to monitor whether the motion state of the drive at the output end of the reduction box matches the desired locking and unlocking positions after the micromotor output end 11 is decelerated to the reduction box, on the one hand, an absolute value encoder 12 is required to be provided at the output end of the micromotor 11, and the absolute value encoder 12 is installed in the micromotor cavity 21 connected to the reduction box, so that the output end 13 of the absolute value encoder is connected to the driving gear, so that the driving gear is meshed with the gear set in the reduction box 2 ( Figure 1 The meshed state is not shown in the figure);

[0044] On the other hand, that is, step S2, a high-definition pinhole camera device 3 needs to be provided and assembled in the receiving cavity 22 integrally or detachably provided on the reduction box 2 ( Figure 2 As shown), it is used to align the gear set for taking pictures; and at the same time, a face recognition system and / or a fingerprint recognition system is provided.

[0045] like Figure 2As shown, when a person holds the grip of the charging gun, the thumb 40 can naturally contact the fingerprint recognition area of ​​the grip, and according to the general posture of a person holding the charging gun and inserting it into the charging port of an electric vehicle, during the connection process, the face is most likely in the face recognition area above the fingerprint recognition area within the detectable range of the face recognition system (generally within the range of ±50°-60° on both sides of the symmetry axis of the face recognition area). Through these two sets of recognition systems, the face and thumb fingerprints can be tested separately. Under the premise of the first recognition and the subsequent preset 3 unrecognized times, it is predicted that the charging gun has been connected to the charging port. This is because after the connection is generally made, the person will automatically release the grip and leave the face recognition range of the charging gun. At this time, the face and fingerprint cannot be recognized. After 2-3 unrecognized records, it is predicted that the mechanical connection is completed.

[0046] Specifically, Figure 2 The face recognition system and fingerprint recognition system respectively include a micro camera arranged on the electron gun, and a fingerprint sensor, and include respective recognition chips communicating with the main control circuit board. The respective recognition chips can respectively detect whether the same face and the same fingerprint are no longer recognized based on the first recognition, and the subsequent detection, so that an electron gun connection completion signal is obtained after three recognitions as the data transmitted by the face recognition system and the fingerprint recognition system received by the main control circuit board.

[0047] Among them, the main control circuit board can collect signals from the micro camera and the fingerprint sensor every 2 seconds, and the subsequent re-detection time is 6 seconds.

[0048] However, whether it is truly completed and how stable it is still needs to be finally determined by electrical connection testing.

[0049] Therefore, step S3 needs to be performed, that is, in the preparation of the intelligent motor, a main control circuit board that communicates with the set cloud server needs to be provided. Figure 2 As shown, the main control circuit board is used to receive data from the aforementioned absolute value encoder 12, pinhole camera device, face recognition system and fingerprint recognition system, and send the data from the face recognition system and fingerprint recognition system to the user's intelligent mobile terminal, such as a smart phone (or tablet computer) via Bluetooth, so that the smart phone can confirm charging based on the received data and the power access signal from the on-board computer also received by Bluetooth, form a confirmation signal, and send it to the cloud server. The cloud server then sends a formal charging start signal to the charging pile to start the charging program.

[0050] Wherein, the method for generating the power access signal from the on-board computer is:

[0051] like Figure 2 As shown, after receiving the electron gun connection completion signal, the S3-1 main control circuit board sends the signal to the cloud server;

[0052] The S3-2 cloud server controls the charging pile to pulse start a 10s trial charge. After the on-board computer recognizes the battery trial charge signal, it uses the trial charge signal as a power access signal and includes the 10s trial charge in the entire charging time.

[0053] At this point, a stable connection was confirmed through both mechanical plug-in confirmation and electrical connection test charging.

[0054] The confirmation of the former mechanical plug-in is specifically embodied in: the gear set is aligned with a predetermined positioning gear on the gear set, and the positioning gear 23 (only shown in the figure, other gears of the gear set are not shown) includes still as Figure 2 The two calibration teeth, calibration tooth A (24) and calibration tooth B (24), are painted on the non-meshing surface (i.e., the wheel disc surface that is not easily worn on the positioning tooth), specifically red (painted A, 26) and green (painted B, 27), respectively representing the locked position and unlocked position reached when driven by the micromotor 1 prepared in step S1.

[0055] At this time, the high-definition pinhole camera device arranged in the illustrated accommodating cavity (in order to facilitate understanding of the position of the positioning gear, a transparent processing is adopted) captures images of two colored dots as calibration data. At the same time, considering the position data of the absolute encoder (that is, the data transmitted by the absolute encoder to the main control circuit board), the rotating rod 28 of the illustrated gear set at the output end of the reduction gear box can be calibrated in the locked position and the unlocked position respectively.

[0056] Therefore, the main control circuit board processes and analyzes whether the locking position and the unlocking position are offset beyond the threshold according to the received data from the absolute value encoder and the calibration data of the two calibration teeth from the high-definition pinhole camera device.

[0057] In order to achieve high-definition acquisition of calibration data such as images in a smaller housing cavity, specifically, in this embodiment, the high-definition pinhole camera device includes a high-definition pinhole camera, an illumination device, and a control chip communicating with the main control circuit board. The illumination device includes an LED (in the form of lamp beads) mounted on the control chip, and a light-diffusing plate ( Figure 2 ). More specifically, in order to enhance the support of the diffuser, one side of the diffuser has a diffuser bracket connected to the edge of the control chip. According to the focal length of the high-definition pinhole camera (typical value: 5mm), a suitable height dimension of the accommodating cavity is provided. Therefore, the image is essentially a macro image.

[0058] The main control circuit board processes and analyzes whether the lock position and the unlock position are offset beyond the threshold according to the received data from the absolute encoder and the calibration data of two calibration teeth from the high-definition pinhole camera device, specifically including: Figure 3 As shown, Figure 2 Take the locking position of the middle color A as an example, and the unlocking situation is analyzed in the same way:

[0059] S3-3 The control chip triggers the high-definition pinhole camera to shoot when it detects that the absolute encoder is at the position corresponding to the locking position according to the instructions set by the main control circuit board. Figure 2 The standard macro image of the positioning gear is used as the standard image corresponding to the locking position, and the standard image is transmitted as calibration data to Figure 2 The main control circuit board is cut by the main control circuit board to leave only a rectangular partial image containing a complete marker;

[0060] S3-4 In the actual locking operation, the high-definition pinhole camera is triggered to capture the measured macro image of the positioning gear as in step S3-3, and the image is cropped in the same manner;

[0061] S3-5 uses the two sides of the partial image as the horizontal (X) and vertical (Y) coordinate axes of the rectangular coordinate system of the main control circuit board, merges the partial image corresponding to the locking position with the corresponding partial image after being cropped from the measured macro image, extracts the contour containing the color A through the edge recognition algorithm, and calculates the horizontal and vertical spans of the contour in the rectangular coordinate system, Sp x and Sp y , set the horizontal and vertical span thresholds Th respectively x and Th y In this embodiment, Th x =Th y .

[0062] like Figure 3 As shown, due to Sp x >Th x Sp y =Th y , locking failed, at this time Figure 2 The main control circuit board in the Figure 2 The alarm connection on the display screen and smartphone is not in place.

[0063] When the user tries to plug in again and the face and fingerprint recognition predictions are confirmed, but the alarm still sounds, it is possible that the drive device or the lock body is faulty. At this time, the alarm can still be sounded through voice, display, and smartphone. The specific voice can be realized by connecting a speaker to the main control circuit board.

[0064] Finally, regarding the power supply, the absolute encoder 12, the high-definition pinhole camera device 3, the face recognition system and the fingerprint recognition system share the same power supply with the micromotor 1 ( Figure 2 ), and a transformer is provided at the output end of the power supply ( Figure 2 (not shown) to meet the power supply waveform of the absolute encoder 12, the high-definition pinhole camera device 3, the face recognition system and / or the fingerprint recognition system. This can be achieved by the power supply and transformer provided on the charging pile.

[0065] Example 2

[0066] This embodiment will provide a charging gun provided with a smart motor prepared by the above method, such as Figure 2 As shown, it includes a main body 41, a charging cable 42 connected to the main body 41, a grip portion 43 provided on the main body 41, a driving device compartment 44 extending from the grip portion 43 and connected to the main body 41, and a display screen 45.

[0067] The gripping portion 43 is hollow and connected to the driving device compartment 44. The intelligent motor is arranged in the hollow of the gripping portion 43 and the driving device compartment. The micro motor 1, the reduction box 2 and the high-definition pinhole camera device 3 are arranged in the driving device compartment 44. The face recognition system 46 and the fingerprint recognition system 47, the main control circuit board 48 and the display screen 45 are arranged in the hollow of the gripping portion 43. The gripping portion 43 has a face recognition area and a fingerprint recognition area, as well as a display area of ​​the display screen. The hollow of the gripping portion 43 and the driving device compartment are connected to each other. A line collection channel 49 is also provided in the warehouse 44 for organizing the signal lines for signal transmission of the absolute encoder 12, the high-definition pinhole camera device 3, the micromotor 1, the face recognition system 46, the fingerprint recognition system 47, the main control circuit board 48 and the display screen 45. A power supply line 50 is also provided in the partial hollow space of the gripping part 43 and the hollow space of the main body 41 for supplying power to the absolute encoder 12, the high-definition pinhole camera device 3, the micromotor 1, the face recognition system 46, the fingerprint recognition system 47, the main control circuit board 48 and the display screen 45.

[0068] In particular, the power supply for the absolute encoder 12, the high-definition pinhole camera device 3, the micromotor 1, the face recognition system 46 and the fingerprint recognition system 47 is provided by connecting the power supply wires through the line collection channel.

Claims

1. A method for preparing a charging pile electronic lock motor, characterized in that: The steps include: S1 prepares a micro motor and a reduction box, sets an absolute encoder at the output end of the micro motor, and connects the output end of the absolute encoder to a driving gear, so that the driving gear is meshed with a gear set in the reduction box; S2 provides a high-definition pinhole camera device, which is mounted on the reduction box and is used to align the gear set for taking pictures, and at the same time prepares a face recognition system and / or a fingerprint recognition system; S3 prepares a main control circuit board that communicates with the cloud server, which is used to receive data from an absolute value encoder, a high-definition pinhole camera device, a face recognition system and / or a fingerprint recognition system, and sends the data from the face recognition system and / or the fingerprint recognition system to the user's smart mobile terminal, so that the user's smart mobile terminal can confirm charging according to the received data and the power access signal from the on-board computer to form a confirmation signal, so that the cloud server receives the confirmation signal sent by the household smart mobile terminal, and sends a formal charging start signal to the charging pile to start the charging program, wherein, The reduction gearbox includes a housing cavity for accommodating the high-definition pinhole camera device. The absolute value encoder, the high-definition pinhole camera device, the face recognition system and / or the fingerprint recognition system share the same power supply with the micromotor, and a transformer is provided at the output end of the power supply to meet the power supply waveform of the absolute value encoder, the high-definition pinhole camera device, the face recognition system and / or the fingerprint recognition system.

2. The method according to claim 1, characterized in that The high-definition pinhole camera device includes a high-definition pinhole camera, a lighting device, and a control chip that communicates with a main control circuit board; The lighting device comprises an LED and a light diffuser arranged in front of the LED, and one side of the light diffuser is provided with a light diffuser bracket connected to the edge of the control chip.

3. The method according to claim 1, characterized in that The gear set to be aligned is a predetermined positioning gear on the gear set, and the positioning gear includes two calibration teeth, which are respectively used to calibrate the locking position and the unlocking position of the rotating rod of the gear set at the output end of the reduction gear box using the high-definition pinhole camera device.

4. The method according to claim 3, characterized in that The main control circuit board processes and analyzes whether the locking position and the unlocking position are offset beyond a threshold value according to the received data from the absolute value encoder and the calibration data of the two calibration teeth from the pinhole camera device; Two marking teeth marking the locking position and the unlocking position are respectively provided with marking objects; The markers are different colors painted on two calibration teeth respectively; The accommodating cavity is arranged above the positioning gear, and the different colors are respectively located on the non-meshing surfaces of the two calibration teeth.

5. The method according to any one of claims 1 to 4, characterized in that The face recognition system and the fingerprint recognition system respectively include a micro camera arranged on the electron gun, and a fingerprint sensor, and include respective recognition chips that communicate with the main control circuit board. The respective recognition chips can respectively detect whether the same face and the same fingerprint are no longer recognized based on the first recognition, and the subsequent detection whether the same face and the same fingerprint are no longer recognized, and thus generate an electron gun connection completion signal through multiple recognition operations as the data transmitted by the face recognition system and / or fingerprint recognition system received by the main control circuit board.

6. The method according to claim 1, characterized in that The main control circuit board can periodically collect signals from the micro camera and fingerprint sensor; The periodic collection is performed every 1-3 seconds, and the duration of the subsequent re-detection is 2 seconds to 15 seconds.

7. The method according to claim 1, characterized in that The method for generating the power access signal from the on-board computer is: After receiving the electron gun connection completion signal, the S3-1 main control circuit board sends the signal to the cloud server; S3-2 The cloud server controls the charging pile to start a test charge. After the onboard computer recognizes the battery test charge signal, it uses the test charge signal as the power supply access signal. The trial charging time is 5s-30s, and is included in the entire charging time.

8. The method according to claim 7, characterized in that The main control circuit board processes and analyzes whether the lock position and the unlock position are offset beyond the threshold according to the received data from the absolute encoder and the calibration data of two calibration teeth from the high-definition pinhole camera device, specifically including: S3-3 The control chip triggers the high-definition pinhole camera device to take two standard macro images of the positioning gear as standard images corresponding to the locking position and the unlocking position, respectively, according to the instructions issued by the main control circuit board after the absolute encoder is detected at the positions corresponding to the locking position and the unlocking position, and transmits the two standard images to the main control circuit board as calibration data, which is cropped by the main control circuit board to leave only the rectangular partial image containing the complete marker; S3-4 In the actual locking and unlocking operations, the high-definition pinhole camera device is triggered to take two measured macro images of the positioning gear as in step S3-3, and the images are cropped in the same manner; S3-5 The main control circuit board uses the two sides of the partial image as the horizontal and vertical coordinate axes of the rectangular coordinate system, merges the partial image corresponding to the locked position and the unlocked position with the corresponding partial image after being cropped from the measured macro image, extracts the outline containing the marker through the edge recognition algorithm, and calculates the horizontal and vertical spans of the outline in the rectangular coordinate system, Sp x and Sp y , set the horizontal and vertical span thresholds Th respectively x and Th y , if Sp x ≤Th x And Sp y ≤Th y If the key is locked, it indicates that the locking and unlocking are successful, otherwise the main control circuit board issues a prompt message.

9. The method according to claim 8, characterized in that The main control circuit board and the on-board computer are connected to the user's smart mobile terminal via Bluetooth; the prompt information sent by the main control circuit board includes: any one of: voice emitted by the electron gun, alarm sent to the electron gun display screen, and alarm sent to the user's smart mobile terminal.

10. A charging gun provided with an intelligent motor prepared by the method according to any one of claims 1 to 9, comprising a main body, a charging cable connected to the main body, a grip portion provided on the main body, and a drive device compartment extending from the grip portion and connected to the main body, characterized in that: The charging gun also includes a display screen, wherein: The holding part is hollow and connected with the driving device compartment, the intelligent motor is arranged in the hollow part and the driving device compartment, wherein the micromotor, the reduction gearbox, and the high-definition pinhole camera device are arranged in the driving device compartment, the face recognition system and / or the fingerprint recognition system, the main control circuit board, and the display screen are arranged in the hollow part, the holding part has a face recognition area and / or a fingerprint recognition area, and a display area of ​​the display screen, and a wire collection channel is also arranged in the hollow part and the driving device compartment, which is used to organize the wires for signal transmission of the absolute value encoder, the high-definition pinhole camera device, the micromotor, the face recognition system and the fingerprint recognition system, the main control circuit board, and the display screen. Part of the hollow part and the main body hollow part also have power supply lines, which are used to power the absolute value encoder, the high-definition pinhole camera device, the micromotor, the face recognition system and the fingerprint recognition system, the main control circuit board, and the display screen. The power supply for the absolute value encoder, the high-definition pinhole camera device, the micromotor, the face recognition system and the fingerprint recognition system is to connect the power supply wires through the wire collection channel.

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