A charging pile built-in liftable identification method and system

Abstract

The application discloses a kind of built-in liftable identification method of charging pile, including steps: control camera rotates in vertical direction until to reach identification area;Target feature in identification area is captured using feature capture identification unit, if capture is successful, then enter next step;Otherwise, return to initial step;The vertical moving distance and moving direction of camera are obtained by using virtual figure unit calculation;Control lifting module adjusts the position of camera according to vertical moving distance and moving direction.The application adjusts the position of camera in identification system in real time by lifting module according to the identification difference obtained by camera, so as to adapt to the license plate position of different vehicle types for identification.

Description

Technical Field

[0001] This invention relates to the field of intelligent identification, and in particular to a liftable identification method and system built into a charging pile. Background Technology

[0002] As the number of new energy vehicles continues to rise and the variety of models increases, inconsistencies in license plate heights arise due to different vehicle types. While charging stations typically employ fixed recognition systems with cameras offering a wider field of view and cameras tilted downwards at a fixed angle, inconsistencies still exist in the recognition area for license plate heights across different vehicle models, as well as variations in the distance between parking spaces and charging stations, and the size of the parking spaces themselves.

[0003] In existing technologies, the corresponding recognition areas, the distance between the parking space and the charging pile, and the area of ​​the parking space are divided according to the license plate height of different vehicle models. However, this may result in irregular area distribution, requiring layout based on the results of on-site surveys, which incurs significant manpower costs. Alternatively, while maintaining a relatively consistent distance between the parking space and the charging pile and the area of ​​the parking space, various charging pile built-in recognition systems adapted to different vehicle models and license plate heights can be designed. However, this requires continuous testing to obtain the optimal configuration scheme, and the optimal configuration scheme is not universally applicable. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method and system for reclining and identifying charging piles that can be built into the pile without the need for on-site surveys or multiple tests to obtain the optimal configuration scheme.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A retractable identification method built into a charging pile includes the following steps:

[0007] S1. Control the camera to rotate vertically until it reaches the recognition area;

[0008] S2. Use the feature capture and recognition unit to capture target features within the recognition area;

[0009] S3. Based on the captured target features, the vertical movement distance and direction of the camera are calculated using virtual graphics units;

[0010] S4. The lifting control module adjusts the position of the camera according to the vertical movement distance and the movement direction.

[0011] To solve the above-mentioned technical problems, another technical solution adopted by the present invention is as follows:

[0012] A height-adjustable identification system built into a charging pile executes the steps of a height-adjustable identification method built into a charging pile, including an in-pile communication module, a control module, a lifting module, and a drive module; the control module receives adjustment commands issued by the in-pile communication module, and the drive module and the lifting module execute the adjustment commands issued by the control module.

[0013] The beneficial effects of this invention are as follows: It provides a lifting and reclining recognition method and system built into a charging pile. Based on the recognition differences obtained by the camera, the position of the camera in the recognition system is adjusted in real time by the lifting module, thereby adapting to the license plate position of different vehicle models for recognition. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a height-adjustable identification method built into a charging pile according to a certain embodiment of the present invention;

[0015] Figure 2 This is a flowchart illustrating a specific embodiment of a height-adjustable identification method built into a charging pile according to the present invention.

[0016] Figure 3 This is a schematic diagram of a height-adjustable identification system built into a charging pile according to a certain embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram illustrating the calculation of the vertical movement distance of a height-adjustable identification method built into a charging pile according to a certain embodiment of the present invention. Detailed Implementation

[0018] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0019] Please refer to Figures 1 to 4 A method for reclining and identifying charging piles, comprising the following steps:

[0020] S1. Control the camera to rotate vertically until it reaches the recognition area;

[0021] S2. Use the feature capture and recognition unit to capture the target features within the recognition area;

[0022] S3. Based on the captured target features, the vertical movement distance and direction of the camera are calculated using a virtual graphics unit.

[0023] S4. The lifting control module adjusts the position of the camera according to the vertical movement distance and the movement direction.

[0024] As can be seen from the above description, the beneficial effects of the present invention are: it provides a lifting and reclining recognition method and system built into a charging pile, which adjusts the position of the camera in the recognition system in real time through the lifting module according to the recognition differences obtained by the camera, thereby adapting to the license plate position of different vehicle models for recognition.

[0025] Further, step S3 specifically includes:

[0026] S31. Control the virtual graphics unit to use a vertical plane that is perpendicular to the plane where the license plate is located and includes the camera as the calculation plane;

[0027] S32. The projection line segment of the license plate in the calculation plane is regarded as the first line segment. The virtual graphics unit is controlled to regard the line connecting the camera and the midpoint of the first line segment as the hypotenuse and the horizontal distance between the camera and the first line segment as the base.

[0028] S33. Control the virtual graphics unit to calculate the vertical distance from the endpoint of the hypotenuse to the bottom edge, and regard the vertical distance as the vertical movement distance.

[0029] As can be seen from the above description, the vertical movement distance is calculated using virtual graphics units to obtain the movement distance of the lifting module.

[0030] Further, step S4 specifically includes:

[0031] S41. Convert the vertical movement distance into the transmission distance of the lifting module, and calculate the transmission time of the lifting module;

[0032] S42. Start the transmission device and adjust the position of the camera according to the transmission time and the direction of movement.

[0033] As described above, to facilitate the operation of the lifting module, the calculated theoretical vertical movement distance is converted into the transmission distance of the lifting module, and then the transmission time of the lifting module is calculated. In one embodiment of the present invention, the lifting module is an integrated device consisting of a vertical screw and a horizontal screw. The vertical screw is connected to the lifting platform carrying the camera, providing it with vertical power in both up and down directions to realize the lifting function of the camera. The horizontal screw is connected to the vertical screw, and a servo motor is used as a power source to provide it with horizontal power in both forward and reverse directions, thereby enabling the vertical screw to achieve the function of rising and falling.

[0034] Specifically, the calculated vertical movement distance is denoted as Ncm, upward movement as +Ncm, and downward movement as -Ncm. The servo motor, based on the input height ±N value, marks positive values ​​as forward rotation and negative values ​​as reverse rotation. By providing forward and reverse power, it provides forward and reverse power to the drive device, realizing the forward and reverse function. At the same time, the N value is converted into a transmission distance L, and then, after servo motor power calculation, L is converted into a drive time S. When the lifting module receives the operation command, the timing unit receives the drive time S. When the drive signal is detected, the timing starts, and when the timing ends, the power output stops.

[0035] Furthermore, step S4 is followed by step S5:

[0036] S5. Control the feature capture and recognition unit to perform feature recognition on the adjusted recognition area. If the recognition is successful, convert the corresponding feature into corresponding data; otherwise, return to step S1.

[0037] As described above, after the camera adjusts its height, the feature capture and recognition unit performs feature recognition on the recognition area. In one embodiment of the present invention, the feature capture and recognition unit identifies and judges objects with obvious and clear features, such as numbers, letters, Chinese characters, and picture frames, within the recognition area. If the recognition is successful, the graphic data recognition unit converts the identified features into corresponding data and ends the entire recognition process. The corresponding data is then transmitted to the data transmission unit, which transmits the information to the pile communication module. Otherwise, the process returns to step S1 and repeats the entire process.

[0038] Furthermore, step S0 is included before step S1:

[0039] S0: Control the communication module inside the charging pile to issue identification commands and drive the camera.

[0040] Further, step S0 specifically includes:

[0041] S01, Control the communication module inside the charging pile to send an identification command;

[0042] S02. The control module converts the identification command into internal data;

[0043] S03. Based on the internal data, control the camera to perform preliminary feature capture and adjust the brightness of the light source.

[0044] As described above, before feature capture, the charging pile's identification system needs to perform preliminary adjustments to the camera. In one embodiment of the present invention, the specific process is as follows: the charging pile's communication module sends an identification command to the communication unit in the control module; the communication unit receives the command, identifies it, converts it into internal data transmission, and sends it to the data transmission unit; the data transmission unit receives the data and simultaneously communicates with the camera drive unit and the light source unit, and begins to issue adjustment commands; the drive unit receives the adjustment commands and begins to drive the camera to rotate; the light source unit begins to output the camera's light source voltage. The camera rotates vertically to reach the identification area; the camera's light source is adjusted to obtain a fixed brightness light source, providing light source support for object recognition. The camera has anti-explosion and low-light compensation functions.

[0045] Please refer to Figure 3 A height-adjustable identification system built into a charging pile executes the steps of a height-adjustable identification method built into a charging pile, including an in-pile communication module, a control module, a lifting module, and a drive module; the control module receives adjustment commands issued by the in-pile communication module, and the drive module and the lifting module execute the adjustment commands issued by the control module.

[0046] As described above, a height-adjustable identification system built into a charging pile is provided. The communication module inside the pile sends operation commands to the control module, which executes the operation commands and then controls the lifting module and drive module to adjust the height of the camera.

[0047] Furthermore, the pile-in-the-pile communication module has remote communication and automatic execution functions.

[0048] As described above, the in-pile communication module can accept remote operation commands from users or a control console, and can also automatically identify based on actual conditions. Specifically, in one embodiment of the present invention, the in-pile communication module is a router, gateway, or other facility, and users issue lifting and lowering identification commands via terminals such as computers and mobile phones; alternatively, the in-pile communication module can also be a 485-to-Ethernet module or an in-pile communication board, issuing lifting and lowering identification commands via local EMS or a local computer.

[0049] Furthermore, it also includes a lens module, which is located on top of the lifting module and moves vertically with the lifting module.

[0050] Furthermore, the control module includes a feature capture and recognition unit, which is capable of recognizing target features.

[0051] This invention provides a height-adjustable identification method and system built into charging piles, mainly applied to the identification of charging pile cameras within charging stations. The following is a detailed description with reference to embodiments:

[0052] Please refer to Figures 1 to 4 Embodiment 1 of the present invention is: a retractable identification method built into a charging pile, comprising the following steps:

[0053] S1. Control the camera to rotate vertically until it reaches the recognition area;

[0054] S2. Use the feature capture and recognition unit to capture the target features within the recognition area;

[0055] S3. Based on the captured target features, the vertical movement distance and direction of the camera are calculated using a virtual graphics unit.

[0056] S4. The lifting control module adjusts the position of the camera according to the vertical movement distance and the movement direction.

[0057] In this embodiment, a lifting and reclining recognition method and system built into a charging pile is provided. Based on the recognition differences obtained by the camera, the position of the camera in the recognition system is adjusted in real time by the lifting module, so as to adapt to the license plate position of different vehicle models for recognition.

[0058] Specifically, in this embodiment, if the capture fails in step S2, the process returns to step S1, and the camera is rotated to adjust the angle of the recognition area; if the capture is successful, the process proceeds to step S3.

[0059] Please refer to Figures 1 to 4 The second embodiment of the present invention is as follows: Based on the first embodiment, step S3 specifically includes:

[0060] S31. Control the virtual graphics unit to use a vertical plane that is perpendicular to the plane where the license plate is located and includes the camera as the calculation plane;

[0061] S32. The projection line segment of the license plate in the calculation plane is regarded as the first line segment. The virtual graphics unit is controlled to regard the line connecting the camera and the midpoint of the first line segment as the hypotenuse and the horizontal distance between the camera and the first line segment as the base.

[0062] S33. Control the virtual graphics unit to calculate the vertical distance from the endpoint of the hypotenuse to the bottom edge, and regard the vertical distance as the vertical movement distance.

[0063] Step S4 specifically involves:

[0064] S41. Convert the vertical movement distance into the transmission distance of the lifting module, and calculate the transmission time of the lifting module;

[0065] S42. Start the transmission device and adjust the position of the camera according to the transmission time and the direction of movement.

[0066] In this embodiment, a virtual graphics unit is used to calculate the vertical movement distance to obtain the movement distance of the lifting module. Simultaneously, to facilitate the operation of the lifting module, the calculated theoretical vertical movement distance is converted into the transmission distance of the lifting module, and then the transmission time of the lifting module is calculated. In one embodiment of the invention, the lifting module is an integrated device consisting of a vertical screw and a horizontal screw. The vertical screw is connected to the lifting platform carrying the camera, providing it with vertical power in both up and down directions to achieve the camera's lifting function. The horizontal screw is connected to the vertical screw, and a servo motor is used as a power source to provide it with horizontal power in both forward and reverse directions, thereby enabling the vertical screw to achieve the upward and downward movement functions.

[0067] Specifically, the calculated vertical movement distance is denoted as Ncm, upward movement as +Ncm, and downward movement as -Ncm. The servo motor, based on the input height ±N value, marks positive values ​​as forward rotation and negative values ​​as reverse rotation. By providing forward and reverse power, it provides forward and reverse power to the drive device, realizing the forward and reverse function. At the same time, the N value is converted into a transmission distance L, and then, after servo motor power calculation, L is converted into a drive time S. When the lifting module receives the operation command, the timing unit receives the drive time S. When the drive signal is detected, the timing starts, and when the timing ends, the power output stops.

[0068] Please refer to Figures 1 to 3 Embodiment 3 of the present invention is as follows: Based on Embodiment 2, step S4 is followed by step S5:

[0069] S5. Control the feature capture and recognition unit to perform feature recognition on the adjusted recognition area. If the recognition is successful, convert the corresponding feature into corresponding data; otherwise, return to step S1.

[0070] Step S0 is included before step S1:

[0071] S01, Control the communication module inside the charging pile to send an identification command;

[0072] S02. The control module converts the identification command into internal data;

[0073] S03. Based on the internal data, control the camera to perform preliminary feature capture and adjust the brightness of the light source.

[0074] In this embodiment, after the camera adjusts its height, the feature capture and recognition unit performs feature recognition on the recognition area. In one embodiment of the present invention, the feature capture and recognition unit identifies and judges objects with obvious and clear features, such as numbers, letters, Chinese characters, and picture frames, within the recognition area. If the recognition is successful, the graphic data recognition unit converts the identified features into corresponding data and ends the entire recognition process, and transmits the corresponding data to the data transmission unit, which then transmits the information to the pile communication module. Otherwise, the process returns to step S1 and repeats the entire process.

[0075] Simultaneously, before feature capture, the charging pile's identification system needs to perform preliminary adjustments to the camera. In one embodiment of the invention, the specific process is as follows: the charging pile's internal communication module sends an identification command to the communication unit in the control module; the communication unit receives the command, identifies it, converts it into internal data transmission, and sends it to the data transmission unit; the data transmission unit receives the data and simultaneously communicates with the camera drive unit and the light source unit, and begins to issue adjustment commands; the drive unit receives the adjustment commands and begins to drive the camera to rotate; the light source unit begins to output the camera's light source voltage. The camera rotates vertically to reach the identification area; the camera's light source is adjusted to obtain a fixed brightness light source, providing light source support for object identification. The camera has anti-explosion and low-light compensation functions.

[0076] Please refer to Figures 1 to 4 Embodiment 4 of the present invention is: a height-adjustable identification system built into a charging pile, which executes the steps of any one of the height-adjustable identification methods built into a charging pile in Embodiments 1 to 3 above, including an in-pile communication module, a control module, a lifting module and a drive module; the control module receives adjustment commands issued by the in-pile communication module, and the drive module and the lifting module execute the adjustment commands issued by the control module.

[0077] In this embodiment, a height-adjustable identification system built into a charging pile is provided. The communication module within the charging pile sends operation commands to the control module, which executes these commands and subsequently controls the lifting module and drive module to adjust the height of the camera. Specifically, in this embodiment, the lifting module supports camera-related components, including a lens module, a light source, and a camera base.

[0078] Please refer to Figures 1 to 4 The fifth embodiment of the present invention is as follows: Based on the fourth embodiment, the pile communication module has remote communication function and automatic execution function.

[0079] In this embodiment, the in-pile communication module can receive remote operation commands from users or a control console, and can also automatically identify the location based on actual conditions. Specifically, in one embodiment of the invention, the in-pile communication module is a router, gateway, or other similar facility, and users can issue lifting and lowering identification commands via terminals such as computers or mobile phones; alternatively, the in-pile communication module can also be a 485-to-Ethernet module or an in-pile communication board, issuing lifting and lowering identification commands via local EMS or a local computer.

[0080] In summary, the present invention provides a lifting and reclining recognition method and system built into a charging pile. Based on the recognition differences obtained by the camera, the position of the camera in the recognition system is adjusted in real time by the lifting module, thereby adapting to the license plate position of different vehicle models for recognition.

[0081] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention's specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A height-adjustable identification method built into a charging pile, characterized in that: Including the following steps: S1. Control the camera to rotate vertically until it reaches the recognition area; S2. Use the feature capture and recognition unit to capture the target features within the recognition area; S3. Based on the captured target features, the vertical movement distance and direction of the camera are calculated using a virtual graphics unit. S4. The lifting control module adjusts the position of the camera according to the vertical movement distance and the movement direction; Step S3 specifically involves: S31. Control the virtual graphics unit to use a vertical plane that is perpendicular to the plane where the license plate is located and includes the camera as the calculation plane; S32. The projection line segment of the license plate in the calculation plane is regarded as the first line segment. The virtual graphics unit is controlled to regard the line connecting the camera and the midpoint of the first line segment as the hypotenuse and the horizontal distance between the camera and the first line segment as the base. S33. Control the virtual graphics unit to calculate the vertical distance from the endpoint of the hypotenuse to the bottom edge, and regard the vertical distance as the vertical movement distance; Step S4 specifically involves: S41. Convert the vertical movement distance into the transmission distance of the lifting module, and calculate the transmission time of the lifting module; S42. Start the transmission device and adjust the position of the camera according to the transmission time and the direction of movement; Step S0 is included before step S1: S0, Control the communication module inside the charging pile to send identification commands and drive the camera; The specific steps of S0 are as follows: S01, Control the communication module inside the charging pile to send an identification command; S02. The control module converts the identification command into internal data; S03. Based on the internal data, control the camera to perform preliminary feature capture and adjust the light source brightness to provide light source support for object recognition; The camera has anti-overexposure and low-light compensation functions.

2. The method for reclining and identifying a charging pile built-in according to claim 1, characterized in that: Step S4 is followed by step S5: S5. Control the feature capture and recognition unit to perform feature recognition on the adjusted recognition area. If the capture is successful, convert the corresponding feature into corresponding data; otherwise, return to step S1.

3. A height-adjustable identification system built into a charging pile, performing the steps of the height-adjustable identification method built into a charging pile as described in any one of claims 1-2, characterized in that: It includes an in-pile communication module, a control module, a lifting module, and a drive module; the control module receives adjustment commands from the in-pile communication module, the drive module executes the adjustment commands from the control module, and the drive module and the lifting module are connected by a transmission.

4. The lifting and reclining identification system built into a charging pile according to claim 3, characterized in that: The pile-in-the-pile communication module has remote communication and automatic execution functions.

5. The adjustable identification system built into a charging pile according to claim 3, characterized in that: It also includes a lens module, which is located on top of the lifting module and moves vertically with the lifting module.

6. The adjustable identification system built into a charging pile according to claim 3, characterized in that: The control module includes a feature capture and recognition unit, which is capable of recognizing target features.

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