Wireless induction type outdoor new energy automobile charging platform

Abstract

The invention discloses a wireless induction type outdoor new energy automobile charging platform, and the platform comprises a parking platform which is used for parking a new energy automobile to be charged; the edge guide rail is arranged on the edge of the parking platform; the vertical guide rail is arranged on the sliding block of the edge guide rail; the mechanical arm is arranged on the sliding block of the vertical guide rail; the main body part of the electric push rod is arranged on the mechanical arm; the wireless identification module is arranged on a telescopic rod of the electric push rod; the binocular camera is arranged on the main body part of the electric push rod; and the wireless charging gun is arranged on a telescopic rod of the electric push rod and is used for being inserted into a charging port of the new energy automobile to be charged and charging the new energy automobile to be charged. Therefore, through combined use of the wireless identification module and the binocular camera, the charging platform can automatically identify and accurately position the position of the charging port of the new energy automobile, automatic docking is realized, and the charging efficiency and the user experience are improved.

Description

Technical Field

[0001] The present invention relates to the field of power electronics technology, and in particular to a wireless induction outdoor new energy vehicle charging platform. Background Art

[0002] New energy vehicles mainly include electric vehicles, hybrid vehicles, etc. These vehicles rely on efficient charging facilities to ensure their operation. Traditional charging methods usually require manual operation, that is, the driver needs to manually insert the charging gun into the charging port of the car. However, this method has many inconveniences, such as difficulty in operation under bad weather conditions and difficulty in accurate docking at night when visibility is poor. These problems seriously affect the user's charging experience and charging efficiency.

[0003] In recent years, with the development of wireless charging technology, wireless inductive charging has become an emerging solution. Wireless inductive charging transmits energy through electromagnetic fields and can achieve charging without physical contact, which greatly improves the safety and convenience of charging. However, existing wireless inductive charging platforms are mostly used in indoor or semi-enclosed environments. For outdoor applications, especially in public parking lots, highway service areas and other places, there are still many challenges, such as complex environment and charging equipment being easily affected by weather. Summary of the invention

[0004] The present invention aims to solve the technical problems in the above-mentioned technology at least to some extent.

[0005] To this end, the present invention discloses a wireless induction outdoor new energy vehicle charging platform, comprising:

[0006] A parking platform, which is used to park new energy vehicles waiting to be charged;

[0007] An edge guide rail, which is in a U-shaped structure and is arranged at the edge of the parking platform;

[0008] A vertical guide rail, which is arranged on the slider of the edge guide rail and can move along the edge of the parking platform driven by the edge guide rail;

[0009] A mechanical arm, which is arranged on a slider of the vertical guide rail and can move up and down driven by the vertical guide rail;

[0010] An electric push rod, the main body of which is arranged on the mechanical arm, and the telescopic rod of which is arranged above the parking platform;

[0011] A wireless identification module, which is arranged on the telescopic rod of the electric push rod, and is used to communicate with the charging module of the new energy vehicle to be charged to determine the position of the charging port of the new energy vehicle to be charged;

[0012] A binocular camera, which is arranged on the main body of the electric push rod and is used to identify the charging port of the new energy vehicle to be charged;

[0013] The wireless charging gun is arranged on the telescopic rod of the electric push rod and is used for being inserted into the charging port of the new energy vehicle to be charged and charging the new energy vehicle to be charged.

[0014] According to the wireless induction outdoor new energy vehicle charging platform disclosed in the present invention, through the combined use of a wireless recognition module and a binocular camera, the charging platform can automatically identify and accurately locate the charging port position of the new energy vehicle, realize automatic docking, and improve charging efficiency and user experience.

[0015] In addition, the wireless induction outdoor new energy vehicle charging platform disclosed in the present invention may also have the following additional technical features:

[0016] In one embodiment of the present invention, the wireless induction outdoor new energy vehicle charging platform further includes:

[0017] Three positioning anchor points are respectively arranged on the parking platform, and the three positioning anchor points and the charging module of the new energy vehicle to be charged determine the position of the charging port of the new energy vehicle to be charged through the triangulation positioning method, specifically,

[0018]

[0019] Further simplified to

[0020]

[0021] Among them, P1 (x1, y1, z1), P2 (x2, y2, z2) and P3 (x3, y3, z3) are the coordinates of the three positioning anchor points respectively, P4 (x4, y4, z4) is the coordinate of the charging module of the new energy vehicle to be charged, d1, d2 and d3 are the distances between the three positioning anchor points and the anchor point of the on-board charging module respectively, thereby the coordinates P4 (x4, y4, z4) of the charging module of the new energy vehicle to be charged can be calculated.

[0022] In one embodiment of the present invention, the wireless identification module and the three positioning anchor points are respectively provided with a reader / writer chip.

[0023] In one embodiment of the present invention, the optical axis of the binocular camera is parallel to the axis of the electric push rod.

[0024] In one embodiment of the present invention, the binocular camera calculates the pitch angle and yaw angle between the axis of the electric push rod and the axis of the charging port of the new energy vehicle to be charged by image recognition technology, specifically,

[0025]

[0026] Among them, P5 (x5, y5, z5) is the coordinate of the center of the charging port of the new energy vehicle to be charged, Q l (u l ,v l ) and Q r (u r ,v r ) are the pixel coordinates of the charging port of the new energy vehicle to be charged under the left camera and the right camera of the binocular camera, f is the focal length of the binocular camera, b is the baseline distance of the binocular camera, d is the diameter of the charging port of the new energy vehicle to be charged, c is the diameter of the charging port of the new energy vehicle to be charged, x and c y are respectively the principal point coordinates of the image of the binocular camera, θ is the pitch angle between the axis of the electric push rod and the axis of the charging port of the new energy vehicle to be charged, and φ is the yaw angle between the axis of the electric push rod and the axis of the charging port of the new energy vehicle to be charged.

[0027] In one embodiment of the present invention, the wireless induction outdoor new energy vehicle charging platform further includes:

[0028] The pressure sensor is arranged on the telescopic rod of the electric push rod, and its contact surface is in the same plane as the contact surface of the wireless charging gun. When the pressure F generated by its contact surface contacting the charging port of the new energy vehicle to be charged is greater than a preset pressure threshold F′, the telescopic rod of the electric push rod stops extending.

[0029] In one embodiment of the present invention, the extension speed of the telescopic rod of the electric linear actuator satisfies a decreasing speed function, specifically,

[0030]

[0031] The shortening speed of the telescopic rod of the electric push rod satisfies a speed linear function, specifically,

[0032] f2(v2)=v2k2,

[0033] Among them, v1 is the initial value of the extension speed of the telescopic rod of the electric push rod, v2 is the initial value of the shortening speed of the telescopic rod of the electric push rod, k1 and k2 are adjustment constants, l is the length that the telescopic rod of the electric push rod needs to be extended, l' is a preset length threshold, and the preset length threshold l' is less than the length l that the telescopic rod of the electric push rod needs to be extended, specifically,

[0034]

[0035] Among them, P6 (x6, y6, z6) is the coordinate of the wireless charging gun.

[0036] In one embodiment of the present invention, the wireless induction outdoor new energy vehicle charging platform further includes:

[0037] A working indicator light is arranged on the parking platform and is used to indicate whether the new energy vehicle to be charged stays on or leaves the parking platform.

[0038] Additional contents and advantages of the present invention will be given in the following description or may be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The technical solutions and beneficial effects of the present invention will become apparent and easily understood from the following contents in conjunction with the accompanying drawings, wherein:

[0040] Figure 1 This is a schematic diagram of the structure of a wireless induction outdoor new energy vehicle charging platform according to an embodiment of the present invention;

[0041] Figure 2 It is an enlarged view of part A of the structural schematic diagram of a wireless induction outdoor new energy vehicle charging platform according to an embodiment of the present invention;

[0042] Figure 3 The system block diagram of a wireless induction outdoor new energy vehicle charging platform according to an embodiment of the present invention.

[0043] As shown in the figure:

[0044] 1-parking platform, 2-edge guide, 3-vertical guide, 4-robotic arm, 5-electric push rod, 6-wireless identification module, 7-binocular camera, 8-wireless charging gun, 9-positioning anchor point, 10-pressure sensor, 11-working indicator light, 12-lightning rod. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0046] The wireless induction outdoor new energy vehicle charging platform disclosed in the present invention will be described below with reference to the accompanying drawings.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, a wireless inductive outdoor new energy vehicle charging platform includes:

[0048] The parking platform 1 is used for parking new energy vehicles to be charged. An anti-slip coating is provided on the parking platform, and clear marking lines are provided on the parking platform to guide drivers to park new energy vehicles on the parking platform.

[0049] The edge guide rail 2 is in a U-shaped structure and is arranged at the edge of the parking platform 1;

[0050] A vertical guide rail 3, which is arranged on a slider of the edge guide rail 2 and can move along the edge of the parking platform 1 driven by the edge guide rail 2;

[0051] A mechanical arm 4, which is arranged on a slider of the vertical guide rail 3 and can move up and down driven by the vertical guide rail 3;

[0052] The electric push rod 5, the main body of which is arranged on the mechanical arm 4, and the telescopic rod part of which is arranged above the parking platform 1;

[0053] A wireless identification module 6 is arranged on the telescopic rod of the electric push rod 5 and is used to communicate with the charging module of the new energy vehicle to be charged to determine the position of the charging port of the new energy vehicle to be charged;

[0054] A binocular camera 7, which is arranged on the main body of the electric push rod 5, and is used to identify the charging port of the new energy vehicle to be charged;

[0055] The wireless charging gun 8 is arranged on the telescopic rod of the electric push rod 5, and is used to be inserted into the charging port of the new energy vehicle to be charged and to charge the new energy vehicle to be charged.

[0056] Specifically, the driver parks the new energy vehicle on the parking platform 1 and parks it correctly according to the guidance of the marking lines of the parking platform 1. After the new energy vehicle is parked stably, the driver starts the wireless charging function of the new energy vehicle. At this time, the charging module of the new energy vehicle is started and communicates with the wireless recognition module 6. After the wireless recognition module 6 successfully completes communication with the charging module of the new energy vehicle, it determines the position of the charging port of the new energy vehicle and sends a signal to the edge guide rail 2 and the vertical guide rail 3. The edge guide rail 2 and the vertical guide rail 3 drive the electric push rod 5 and the wireless recognition module 6, binocular camera 7 and wireless charging gun 8 above it to move to the vicinity of the charging port of the new energy vehicle. The binocular camera 7 recognizes the charging port of the new energy vehicle. Finally, the electric push rod 5 drives the wireless charging gun 8 to contact the charging port of the new energy vehicle to realize wireless charging.

[0057] According to the wireless induction outdoor new energy vehicle charging platform disclosed in the present invention, through the combined use of a wireless recognition module and a binocular camera, the charging platform can automatically identify and accurately locate the charging port position of the new energy vehicle, realize automatic docking, and improve charging efficiency and user experience.

[0058] In order to better explain the present invention, in one embodiment of the present invention, the wireless induction outdoor new energy vehicle charging platform further includes:

[0059] Three positioning anchor points 9 are respectively arranged on the parking platform 1, and the three positioning anchor points and the charging module of the new energy vehicle to be charged determine the position of the charging port of the new energy vehicle to be charged through the triangulation positioning method, specifically,

[0060]

[0061] Further simplified to

[0062]

[0063] Among them, P1 (x1, y1, z1), P2 (x2, y2, z2) and P3 (x3, y3, z3) are the coordinates of the three positioning anchor points 9, P4 (x4, y4, z4) is the coordinate of the charging module of the new energy vehicle to be charged, d1, d2 and d3 are the distances between the three positioning anchor points 9 and the anchor points of the on-board charging module, from which the coordinates P4 (x4, y4, z4) of the charging module of the new energy vehicle to be charged can be calculated.

[0064] Specifically, by setting three positioning anchor points 9 and the charging module of the new energy vehicle to realize triangulation positioning, the location of the charging port of the new energy vehicle can be known more accurately;

[0065] The coordinates P1 (x1, y1, z1), P2 (x2, y2, z2) and P3 (x3, y3, z3) of the three positioning anchor points 9 are known. The coordinates P4 (x4, y4, z4) of the charging module of the new energy vehicle can be inferred from the distances d1, d2 and d3 between each positioning anchor point 9 and the charging module of the new energy vehicle.

[0066] In addition, in order to better simplify the calculation, the parking platform 1 can be set as a spatial coordinate system, and the relevant staff can set the three positioning anchor points 9 on the same plane, with the coordinate P1 (x1, y1, z1) of one positioning anchor point 9 as the origin, that is, the coordinate of the positioning anchor point 9 is P1 (0, 0, 0), and the coordinate P2 (x2, y2, z2) of another positioning anchor point 9 is placed on the z-axis, that is, the coordinate of the positioning anchor point 9 is p2 (0, 0, z2), and the coordinate p3 (x3, y3, z3) of the last positioning anchor point 9 is placed on the x-axis, that is, the coordinate of the positioning anchor point 9 is p3 (x3, 0, 0), which can be simplified to,

[0067]

[0068] By calculation, we can know the coordinates P4 (x4, y4, z4) of the charging module of the new energy vehicle.

[0069] For other technical contents of this embodiment, please refer to the above embodiments, which will not be repeated in this embodiment.

[0070] In one embodiment of the present invention, the wireless identification module 6 and the three positioning anchor points 9 are respectively provided with a reader / writer chip.

[0071] Specifically, the charging module of the new energy vehicle can use an RFID tag, and the wireless identification module 6 and the three positioning anchor points 9 are respectively provided with an RFID reader / writer.

[0072] For other technical contents of this embodiment, please refer to the above embodiments, which will not be repeated in this embodiment.

[0073] In one embodiment of the present invention, the optical axis of the binocular camera 7 is parallel to the axis of the electric push rod 5;

[0074] The binocular camera 7 calculates the pitch angle and yaw angle between the axis of the electric push rod 5 and the axis of the charging port of the new energy vehicle to be charged through image recognition technology, specifically,

[0075]

[0076] Among them, P5 (x5, y5, z5) is the coordinate of the center of the charging port of the new energy vehicle to be charged, Q l (u l ,v l ) and Q r (u r ,v r ) are the pixel coordinates of the charging port of the new energy vehicle to be charged under the left camera and the right camera of the binocular camera 7, f is the focal length of the binocular camera 7, b is the baseline distance of the binocular camera 7, d is the diameter of the charging port of the new energy vehicle to be charged, c is the diameter of the charging port of the new energy vehicle to be charged, x and c y are respectively the principal point coordinates of the image of the binocular camera 7, θ is the pitch angle between the axis of the electric push rod 5 and the axis of the charging port of the new energy vehicle to be charged, and φ is the yaw angle between the axis of the electric push rod 5 and the axis of the charging port of the new energy vehicle to be charged.

[0077] Specifically, the charging port of the new energy vehicle is identified through the binocular camera 7, and the robotic arm 4 makes the axis of the electric push rod 5 coincide with the axis of the charging port of the new energy vehicle according to the pitch angle θ and the yaw angle φ. In this way, when the electric push rod 5 is extended, it can ensure that the wireless charging gun 8 on the telescopic rod of the electric push rod 5 contacts the charging port of the new energy vehicle.

[0078] For other technical contents of this embodiment, please refer to the above embodiments, which will not be described in detail in this embodiment.

[0079] In one embodiment of the present invention, the wireless induction outdoor new energy vehicle charging platform further includes:

[0080] The pressure sensor 10 is arranged on the telescopic rod of the electric push rod 5, and its contact surface is in the same plane as the contact surface of the wireless charging gun 8. When the pressure F generated by the contact surface of the pressure sensor 10 contacting the charging port of the new energy vehicle to be charged is greater than the preset pressure threshold F′, the telescopic rod of the electric push rod 5 stops extending;

[0081] The extension speed of the telescopic rod of the electric push rod 5 satisfies a decreasing speed function, specifically,

[0082]

[0083] The shortening speed of the telescopic rod of the electric push rod 5 satisfies a speed linear function, specifically,

[0084] f2(v2)=v2k2,

[0085] Among them, v1 is the initial value of the extension speed of the telescopic rod of the electric push rod 5, v2 is the initial value of the shortening speed of the telescopic rod of the electric push rod 5, k1 and k2 are adjustment constants, l is the length that the telescopic rod of the electric push rod 5 needs to be extended, l' is the preset length threshold, and the preset length threshold l' is less than the length l that the telescopic rod of the electric push rod 5 needs to be extended, specifically,

[0086]

[0087] Among them, P6 (x6, y6, z6) is the coordinate of the wireless charging gun 8.

[0088] Specifically, in order to prevent the electric push rod 5 from being too strong in extension and contraction, thereby causing damage to the wireless charging gun 8 and the charging port of the new energy vehicle when in contact, the extension speed of the telescopic rod of the electric push rod 5 can satisfy a speed decreasing function, wherein the preset length threshold l′ can be set to That is, when the extension distance of the telescopic rod of the electric push rod 5 reaches half, its speed begins to slowly decrease;

[0089] Meanwhile, the preset pressure threshold F′ may be set to 5N, that is, when the pressure sensor 10 senses a pressure exceeding 5N, the telescopic rod of the electric push rod 5 stops extending.

[0090] For other technical contents of this embodiment, please refer to the above embodiments, which will not be described in detail in this embodiment.

[0091] In one embodiment of the present invention, the wireless induction outdoor new energy vehicle charging platform further includes:

[0092] A working indicator light 11 is provided on the parking platform 1 and is used to indicate whether the new energy vehicle to be charged stays on or leaves the parking platform 1. A corresponding lightning rod 12 can also be provided on the working indicator light 11 to improve the safety of the wireless induction outdoor new energy vehicle charging platform.

[0093] Specifically, the working indicator light 11 can be set to two colors, red and green. When the working indicator light 11 is red, it indicates that the wireless induction outdoor new energy vehicle charging platform is in use or has a fault. When the working indicator light 11 is green, it indicates that the wireless induction outdoor new energy vehicle charging platform can be used normally.

[0094] For other technical contents of this embodiment, please refer to the above embodiments, which will not be repeated in this embodiment.

[0095] In summary, according to the wireless induction outdoor new energy vehicle charging platform disclosed in the present invention, through the combined use of the wireless recognition module and the binocular camera, the charging platform can automatically identify and accurately locate the charging port position of the new energy vehicle, realize automatic docking, and improve the charging efficiency and user experience.

[0096] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A wireless induction outdoor new energy vehicle charging platform, characterized in that: include: A parking platform (1) for parking new energy vehicles to be charged; An edge guide rail (2) having a U-shaped structure and arranged at the edge of the parking platform (1); A vertical guide rail (3) which is arranged on a slider of the edge guide rail (2) and can move along the edge of the parking platform (1) driven by the edge guide rail (2); A mechanical arm (4), which is arranged on a slider of the vertical guide rail (3) and can move up and down driven by the vertical guide rail (3); An electric push rod (5), the main body of which is arranged on the mechanical arm (4), and the telescopic rod of which is arranged above the parking platform (1); A wireless identification module (6), which is arranged on the telescopic rod of the electric push rod (5), and is used to communicate with the charging module of the new energy vehicle to be charged, and determine the position of the charging port of the new energy vehicle to be charged; A binocular camera (7), which is arranged on the main body of the electric push rod (5) and is used to identify the charging port of the new energy vehicle to be charged; A wireless charging gun (8) is arranged on the telescopic rod of the electric push rod (5) and is used for being inserted into the charging port of the new energy vehicle to be charged and charging the new energy vehicle to be charged.

2. The wireless induction outdoor new energy vehicle charging platform as claimed in claim 1, characterized in that: Also includes: Three positioning anchor points (9) are respectively arranged on the parking platform (1), and they and the charging module of the new energy vehicle to be charged determine the position of the charging port of the new energy vehicle to be charged through a triangulation positioning method.

3. The wireless induction outdoor new energy vehicle charging platform as claimed in claim 2, characterized in that: The wireless identification module (6) and the three positioning anchor points (9) are respectively provided with a reader / writer chip.

4. The wireless induction outdoor new energy vehicle charging platform as claimed in claim 1, characterized in that: The optical axis of the binocular camera (7) is parallel to the axis of the electric push rod (5).

5. The wireless induction outdoor new energy vehicle charging platform as claimed in claim 4, characterized in that: The binocular camera (7) calculates the pitch angle and yaw angle between the axis of the electric push rod (5) and the axis of the charging port of the new energy vehicle to be charged through image recognition technology.

6. The wireless induction outdoor new energy vehicle charging platform as claimed in claim 1, characterized in that: Also includes: A pressure sensor (10) is arranged on the telescopic rod of the electric push rod (5), and its contact surface is in the same plane as the contact surface of the wireless charging gun (8). When the pressure generated by the contact surface contacting the charging port of the new energy vehicle to be charged is greater than a preset pressure threshold, the telescopic rod of the electric push rod (5) stops extending.

7. The wireless induction outdoor new energy vehicle charging platform as claimed in claim 6, characterized in that: The extension speed of the telescopic rod of the electric push rod (5) satisfies a decreasing speed function, and the shortening speed satisfies a linear speed function.

8. The wireless induction outdoor new energy vehicle charging platform as claimed in claim 1, characterized in that: Also includes: A working indicator light (11) is arranged on the parking platform (1) and is used to indicate whether the new energy vehicle to be charged stays on or leaves the parking platform (1).

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