Battery pack locking mechanism battery replacement angle identification method

Abstract

The invention discloses a battery pack locking mechanism battery replacement angle identification method, which comprises the following steps that a vehicle enters a battery replacement station, license plate information of the vehicle is obtained, battery information of the vehicle is obtained through the license plate information, and the battery information at least comprises the specification of a T-shaped rod; the shooting device is used for shooting the battery pack lock body from the side face and recognizing the position of a key point in the picture, and the key point at least comprises a T-shaped rod; the height h of the T-shaped rod in the picture and the included angle a between the central axis of the T-shaped rod and the horizontal line are obtained, the height h and the included angle a in the picture are compared with the height h1 of the T-shaped rod in the sample picture and the included angle a1 between the central axis of the T-shaped rod and the horizontal line, and the battery pack of the vehicle is disassembled or assembled through the battery replacing platform on the battery replacing trolley. The battery pack lock body recognition device has the advantages that full-automatic recognition of the battery pack lock body can be achieved, full-automatic operation is achieved, the working efficiency is greatly improved, meanwhile, the precision is improved, and the battery pack lock body recognition device has wide applicability.

Description

Technical Field

[0001] The present invention relates to the field of battery replacement technology, and more specifically, to a method for identifying the battery replacement angle of a battery pack locking mechanism. Background Art

[0002] During the operation of the SQ project, customers' battery pack locks often fail. Once the failure occurs, the T-bar will shift at an abnormal angle, causing the battery pack trailer to be pulled out, interrupting the battery replacement process. Resolving this anomaly is very complicated.

[0003] Currently, all gun heads can only be manually inspected each time the battery pack is disassembled, and manual inspection is not suitable for operation and is dangerous. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method for identifying the battery replacement angle of a battery pack locking mechanism.

[0005] The purpose of the present invention is achieved through the following technical solutions: A method for identifying a battery replacement angle of a battery pack locking mechanism includes the following steps: S1. A vehicle enters a battery swap station, obtains the vehicle's license plate information, and obtains the vehicle's battery information based on the license plate information, wherein the battery information includes at least the specifications of the T-bar; S2. Drive the battery-swapping trolley to one side of the vehicle, and use a camera mounted on the trolley to photograph the battery pack lock body from the side, identifying key points in the photograph, wherein the key points include at least a T-bar. S3, obtaining the height h of the T-bar and the angle a between its axis and the horizontal line in the photograph, and comparing the height h and angle a in the photograph with the height h1 of the T-bar and the angle a1 between its axis and the horizontal line in the sample photograph; if the height h and angle a in the photograph are the same as the height h1 and angle a1 of the T-bar in the sample photograph, executing step S5; if the height h and angle a in the photograph are different from the height h1 and angle a1 of the T-bar in the sample photograph, executing step S4; S4. The controller controls the battery swap platform on the battery swap vehicle to tilt, and then executes step S2; S5. The battery swap platform on the battery swap vehicle removes or installs the battery pack of the vehicle.

[0006] Preferably, the method further includes performing denoising on the photo.

[0007] Preferably, if the height h and the angle a in the photo are different from the height h1 and the angle a1 of the T-bar in the sample photo, a buzzer sounds and / or a warning light flashes to issue a reminder.

[0008] Preferably, the shooting device at least includes a support frame arranged on the battery-exchanging robot, and a CCD component and a fill light are fixed on the support frame, and the fill light is located directly below the CCD component.

[0009] Preferably, the photographing device further comprises at least two signal transmitters arranged on the supporting frame, and the battery pack lock body is provided with a signal receiver corresponding to the signal transmitters.

[0010] Preferably, the signal receiver, signal transmitter, CCD component and fill light are electrically connected.

[0011] Preferably, a weighing device is provided on the battery pack lock body, and the weighing device is located below the battery pack.

[0012] Preferably, it further includes a central control display screen, which is electrically connected to the shooting device.

[0013] Preferably, in step S2, the key point also includes any component other than the T-bar. If the angle between the central axis of the component and the horizontal line is not equal to the angle a between the central axis of the T-bar and the horizontal line, a reminder occurs.

[0014] The beneficial effects of the present invention are mainly reflected in: 1. The design is sophisticated. This method can realize fully automatic identification of the position of the battery pack lock body, realize fully automatic operation, and greatly improve work efficiency. In addition, by judging the offset angle and height of the T-bar, the battery swap platform can automatically match it with it, realizing fully automatic operation. Automatic identification can reduce the error rate and improve safety. At the same time, it also improves accuracy and has a wide applicability. 2. Starting the CCD camera to take pictures can reduce system power consumption and ensure the system works effectively. The CCD camera can set operating parameters to adjust the light in the picture taking area, improve the image clarity of the CCD camera, and reduce the complexity of subsequent image processing. The CCD camera has the characteristics of vibration and impact resistance, and the CCD camera has high precision, which is conducive to improving the accuracy of the picture taking; 3. The fill light setting prevents the image of the captured target from producing a "yin-yang" effect. Furthermore, the fill light is concentrated, achieving a strong fill light effect even when shooting targets at medium and long distances. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The technical solution of the present invention will be further described below with reference to the accompanying drawings: Figure 1 : Flowchart of a preferred embodiment of the present invention; Figure 2: A schematic structural diagram of a camera capturing a battery pack lock body in the present invention; Figure 3 : A structural diagram of a sample photo in the present invention. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0020] like Figures 1 to 3 As shown, the present invention discloses a method for identifying the battery replacement angle of a battery pack locking mechanism, comprising the following steps: S1. A vehicle enters a battery swap station, obtains the vehicle's license plate information, and obtains the vehicle's battery information through the license plate information. The battery information at least includes the specifications of the T-bar, which at least includes the length, width, and height of the T-bar.

[0021] S2. Drive the battery-exchange trolley to one side of the vehicle, and the shooting device provided on the battery-exchange trolley takes a picture of the battery pack lock body from the side, and identifies the key point positions in the picture, wherein the key points include at least a T-bar. In the above, the shooting device includes a camera, a camera, etc. Of course, other cameras can also be used, which all fall within the scope of protection of the present invention and will not be elaborated on here. The shooting device at least includes a support frame provided on the battery-exchange robot, and a CCD component and a fill light are fixed on the support frame. In the above, the CCD component includes a machine vision light source and a CCD camera, and the machine vision light source is located directly below the CCD camera; the CCD camera at least includes an image sensor and an analog-to-digital conversion circuit, the image sensor is connected to the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is provided with a communication interface, the image sensor converts the external light signal into an analog signal, and the analog-to-digital conversion circuit converts the analog signal into a digital signal and transmits it to the processor. The use of a CCD camera in the present invention can meet the illumination requirements in an industrial manufacturing environment and has high sensitivity. The system uses a communication interface for data transmission, which can effectively prevent interference from other signals and improve the stability of data transmission. At the same time, the CCD camera includes an optical lens connected to the body, and the image sensor and analog-to-digital converter are arranged inside the body. The optical lens collects external light to the image sensor, which is conducive to the system to collect clear images.

[0022] Activating the CCD camera to take photos reduces system power consumption and ensures efficient system operation. The CCD camera can set operating parameters to adjust the lighting in the photographing area, improve image clarity, and reduce the complexity of subsequent image processing. The CCD camera is resistant to vibration and impact, and has high precision, which helps improve photographic accuracy.

[0023] The camera also includes at least two signal transmitters mounted on the support frame. The battery pack lock body is provided with a signal receiver corresponding to the signal transmitters to promptly detect the position of the battery pack lock body. Furthermore, the fill light is located directly below the CCD assembly, and the signal receiver, signal transmitter, CCD assembly, and fill light are electrically connected. The placement of the fill light prevents the image of the captured target from producing a "yin-yang" effect. Furthermore, the fill light is concentrated, achieving a strong fill light effect even when photographing targets at medium and long distances.

[0024] S3, obtaining the height h of the T-bar and the angle a between its axis and the horizontal line in the photograph, and comparing the height h and angle a in the photograph with the height h1 of the T-bar and the angle a1 between its axis and the horizontal line in the sample photograph; if the height h and angle a in the photograph are the same as the height h1 and angle a1 of the T-bar in the sample photograph, executing step S5; if the height h and angle a in the photograph are different from the height h1 and angle a1 of the T-bar in the sample photograph, executing step S4; S4. If the height h and angle a in the photo are different from the height h1 and angle a1 of the T-bar in the sample photo, the buzzer sounds and / or the warning light flashes to issue a reminder, notifying the customer end to check the battery pack tilt problem to improve safety. In addition, the controller controls the battery swap platform on the battery swap trolley to tilt, and then executes step S2; S5. The battery swap platform on the battery swap vehicle removes or installs the battery pack of the vehicle.

[0025] In step S2 of this preferred embodiment, the key point also includes any component other than the T-bar. If the angle between the central axis of the component and the horizontal line is not equal to the angle a between the central axis of the T-bar and the horizontal line, a reminder occurs.

[0026] In addition, in this preferred embodiment, a scale is provided on the battery pack lock body, located below the battery pack. The scale allows for timely monitoring of the battery pack's specifications. Furthermore, the present invention includes a central control display screen, electrically connected to the camera device, allowing for timely monitoring of its status.

[0027] The above also includes denoising all photos, that is, before identifying the positions of key points in the photos, the images need to be pre-processed such as denoising to facilitate subsequent acquisition of key points in the photos.

[0028] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0029] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for identifying the battery replacement angle of a battery pack locking mechanism, characterized in that: The steps include: S1. A vehicle enters a battery swap station, obtains the vehicle's license plate information, and obtains the vehicle's battery information based on the license plate information, wherein the battery information includes at least the specifications of the T-bar; S2. Drive the battery-swapping trolley to one side of the vehicle, and use a camera mounted on the trolley to photograph the battery pack lock body from the side, identifying key points in the photograph, wherein the key points include at least a T-bar. S3, obtaining the height h of the T-bar and the angle a between its axis and the horizontal line in the photograph, and comparing the height h and angle a in the photograph with the height h1 of the T-bar and the angle a1 between its axis and the horizontal line in the sample photograph; if the height h and angle a in the photograph are the same as the height h1 and angle a1 of the T-bar in the sample photograph, executing step S5; if the height h and angle a in the photograph are different from the height h1 and angle a1 of the T-bar in the sample photograph, executing step S4; S4. The controller controls the battery swap platform on the battery swap vehicle to tilt, and then executes step S2; S5. The battery swap platform on the battery swap vehicle removes or installs the battery pack of the vehicle.

2. The battery pack locking mechanism battery replacement angle identification method according to claim 1, characterized in that: It also includes denoising of photos.

3. The battery pack locking mechanism battery replacement angle identification method according to claim 1, characterized in that: If the height h and the angle a in the photo are different from the height h1 and the angle a1 of the T-bar in the sample photo, the buzzer sounds and / or the warning light flashes to issue a reminder.

4. The battery pack locking mechanism battery replacement angle identification method according to claim 1, characterized in that: The shooting device at least includes a support frame arranged on the battery-exchanging robot, and a CCD component and a fill light are fixed on the support frame. The fill light is located directly below the CCD component.

5. The battery pack locking mechanism battery replacement angle identification method according to claim 4, characterized in that: The shooting device further includes at least two signal transmitters arranged on the support frame, and the battery pack lock body is provided with a signal receiver corresponding to the signal transmitters.

6. The battery pack locking mechanism battery replacement angle identification method according to claim 5, characterized in that: The signal receiver, signal transmitter, CCD component and fill light are electrically connected.

7. The battery pack locking mechanism battery replacement angle identification method according to claim 1, characterized in that: A weighing device is provided on the battery pack lock body and is located below the battery pack.

8. The battery pack locking mechanism battery replacement angle identification method according to claim 1, characterized in that: It also includes a central control display screen, which is electrically connected to the shooting device.

9. The battery pack locking mechanism battery replacement angle identification method according to claim 1, characterized in that: In step S2, the key point also includes any component other than the T-bar. If the angle between the central axis of the component and the horizontal line is not equal to the angle a between the central axis of the T-bar and the horizontal line, a reminder occurs.

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