阅读说明：本技术 一种用户侧新能源汽车储能充电站 (User side new energy automobile energy storage charging station ) 是由 孔舰 王明辉 陈盛旺 于 2020-06-18 设计创作，主要内容包括：本发明涉及了一种用户侧新能源汽车储能充电站,包括充电桩、充电头及线束、夹具、视觉传感器、多自由度机器臂、智能控制器和协作自动小车等组成部件。本发明可实现基于机器视觉的人机协作引导式拔插充电头设备,进而实现人员无接触且高可靠性地充电操作。不仅降低了技术难度和成本,而且能便利地服务于肢体乏力特殊人群。此外,通过协作自动小车与多自由度机械臂的分级运动控制与协同作业配合,本发明的充电站能服务不同规格及不同充电口距离的电动车辆。由于全程人手没有任何地物理性接触高压设备,提高了充电作业安全性以及疫情时期的间接感染。(The invention relates to a user-side new energy automobile energy storage charging station which comprises a charging pile, a charging head, a wire harness, a clamp, a vision sensor, a multi-degree-of-freedom robot arm, an intelligent controller, a cooperative automatic trolley and the like. The invention can realize the man-machine cooperation guiding type plug-in and pull-out charging head equipment based on machine vision, thereby realizing the charging operation with non-contact and high reliability for personnel. Not only reduces the technical difficulty and the cost, but also can conveniently serve special crowds with weak limbs. In addition, through the cooperation of the stepped motion control and the cooperative operation of the cooperative automatic trolley and the multi-degree-of-freedom mechanical arm, the charging station can serve electric vehicles with different specifications and different charging port distances. As no physical contact with high-voltage equipment is made by hands in the whole process, the safety of charging operation and indirect infection in epidemic situation are improved.)

1. The utility model provides a user side new energy automobile energy storage charging station which characterized in that: the user-side new energy automobile energy storage charging station comprises a charging pile, a charging head, a wire harness, a single-degree-of-freedom clamp, a vision sensor, a multi-degree-of-freedom robot arm, an intelligent controller, a cooperative automatic trolley and the like;

the charging pile is provided with an installation frame of a cantilever beam structure and used for placing a charging head and a wire harness, so that the clamping operation of the clamp on the charging head is not interfered;

the multi-degree-of-freedom robot arm is fixedly arranged on the cooperative automatic trolley, and the two can realize cooperative operation;

the vision sensor is fixedly arranged on a fourth shaft arm of the multi-degree-of-freedom robot arm and is used for capturing and identifying the charging head, the hand motion and the position of a charging port of a vehicle to be detected;

the single-degree-of-freedom clamp is arranged at the tail end of the multi-degree-of-freedom robot arm, so that the position change of multiple spatial degrees of freedom can be realized, but the clamp only has one clamping degree of freedom;

the utility model provides a user side new energy automobile energy storage charging station can realize that people's cooperation guide formula based on machine vision pulls out and inserts charging plug equipment, realizes that personnel contactless and high success rate's charging operation.

2. The energy storage charging station for the user-side new energy automobile as claimed in claim 1, wherein: the intelligent controller controls the position and the working state of the clamp through a feedback signal of the visual sensor;

the visual sensor can capture and recognize the guiding action of a human hand, so that a space 6-degree-of-freedom position control signal and a working state control signal of the clamp are sent to the intelligent controller;

the vision sensor can capture the action track of the palm of a person, and when the overall palm contour becomes larger or smaller, an upward or downward control instruction of the clamp is output; when the whole palm profile moves left and right at the same horizontal height, a control instruction of the clamp to the left or the right is output; when the whole palm profile rotates clockwise or anticlockwise at the same horizontal height, outputting a control instruction of the clamp clockwise or anticlockwise; when the whole palm profile moves back and forth at the same horizontal height, a control instruction of the clamp in the forward or backward direction is output; when the front-back longest distance of the overall palm profile is unchanged and the left-right longest distance of the overall palm profile is shortened, a control instruction of turning the clamp left and right is output; when the front-back longest distance of the overall palm profile is shortened and the left-right longest distance is unchanged, outputting a control instruction of turning the clamp back and forth; when only the index finger of the whole palm bends to shorten or straightens to lengthen, a control instruction of clamping or loosening the clamp is output.

3. The energy storage charging station for the user-side new energy automobile as claimed in claim 1, wherein: the intelligent controller respectively outputs control instructions of the cooperative automatic trolley and the multi-degree-of-freedom robot arm according to the identified human hand control instruction;

the motor driving control instruction sent by the intelligent controller to the multi-degree-of-freedom robot arm is a primary control instruction and covers closed-loop position and rotating speed control signals of a plurality of motors in the multi-degree-of-freedom robot arm;

the motor driving control instruction sent by the intelligent controller to the automatic coordinated trolley is a secondary control instruction, and covers closed-loop position and rotating speed control signals of 4 driving wheel-side motors;

the intelligent controller preferentially outputs a primary control instruction to respond to the motion guidance of the human hand, and if the motion area exceeds the motion area of the multi-degree-of-freedom robot arm, a secondary control instruction is output to continue responding to the motion guidance of the human hand, so that the clamp moves to a target position and finishes the specified motion.

4. The energy storage charging station for the user-side new energy automobile as claimed in claim 1, wherein: the multi-degree-of-freedom robot arm is fixedly arranged on the cooperative automatic trolley, and cooperative operation of different priority levels is adopted;

the intelligent controller can judge whether the stroke exceeds the action area of the multi-degree-of-freedom robot arm according to the motion control and result feedback of the multi-degree-of-freedom robot arm;

when the charging port of the charging vehicle exceeds the length of the multi-degree-of-freedom mechanical arm, the intelligent controller can drive the automatic trolley in cooperation to quickly approach the position of the charging port, and the insertion or extraction operation of the charging head is realized according to the guidance of human hands based on machine vision.

5. The energy storage charging station for the user-side new energy automobile as claimed in claim 1, wherein: the automatic cooperative trolley is arranged by adopting an omnidirectional wheel, and can conveniently drive the multi-degree-of-freedom mechanical arm on the automatic cooperative trolley to have 3 degrees of freedom such as left and right movement, front and back movement or axial rotation around the height in a horizontal plane;

the cooperative automatic trolley can give an emergency braking command by the intelligent controller under the feedback of a machine vision signal, so that collision of people or vehicles and other foreign objects can be avoided, and the safety is improved.

Technical Field

The invention relates to the technical field of charging stations, in particular to a user side new energy automobile energy storage charging station.

Background

Most of charging operations of the existing charging stations are manual holding of a charging head and plugging and unplugging operations on the charging head, the operations can cause contact cross infection during epidemic situations, and when a wiring harness is too long, the operation is laborious, and operation of some people with injured limbs is not easy. Therefore, patent 201910250744.1 and the like propose an automatic charging scheme based on a multi-degree-of-freedom mechanical arm, but such an intelligent system which is totally handed to machine vision judgment not only has high cost, difficult algorithm, no operation beyond the arm length distance, and potential robot injury risk, and the like.

Disclosure of Invention

To the weak point of prior art, the inventor provides a user side new energy automobile energy storage charging station, its characterized in that: the charging station comprises a charging pile, a charging head, a wire harness, a clamp, a vision sensor, a multi-degree-of-freedom robot arm, an intelligent controller, a cooperative automatic trolley and the like; the charging pile is provided with an installation frame of a cantilever beam structure and used for placing a charging head and a wire harness, so that the clamping operation of the clamp on the charging head is not interfered; the multi-degree-of-freedom robot arm is fixedly arranged on the cooperative automatic trolley, and the two can realize cooperative operation; the vision sensor is fixedly arranged on a fourth shaft arm of the multi-degree-of-freedom robot arm and is used for capturing and identifying the charging head, the hand motion and the position of a charging port of a vehicle to be detected; the single-degree-of-freedom clamp is arranged at the tail end of the multi-degree-of-freedom robot arm, so that the position change of multiple spatial degrees of freedom can be realized, but the clamp only has one clamping degree of freedom; the utility model provides a user side new energy automobile energy storage charging station can realize that people's cooperation guide formula based on machine vision pulls out and inserts charging plug equipment, realizes that personnel contactless and high success rate's charging operation.

Further, the intelligent controller controls the position and the working state of the clamp through a feedback signal of the visual sensor; the visual sensor can capture and recognize the guiding action of a human hand, so that a space 6-degree-of-freedom position control signal and a working state control signal of the clamp are sent to the intelligent controller; the vision sensor can capture the action track of the palm of a person, and when the overall palm contour becomes larger or smaller, an upward or downward control instruction of the clamp is output; when the whole palm profile moves left and right at the same horizontal height, a control instruction of the clamp to the left or the right is output; when the whole palm profile rotates clockwise or anticlockwise at the same horizontal height, outputting a control instruction of the clamp clockwise or anticlockwise; when the whole palm profile moves back and forth at the same horizontal height, a control instruction of the clamp in the forward or backward direction is output; when the front-back longest distance of the overall palm profile is unchanged and the left-right longest distance of the overall palm profile is shortened, a control instruction of turning the clamp left and right is output; when the front-back longest distance of the overall palm profile is shortened and the left-right longest distance is unchanged, outputting a control instruction of turning the clamp back and forth; when only the index finger of the whole palm bends to shorten or straightens to lengthen, a control instruction of clamping or loosening the clamp is output.

Further, the controller respectively outputs control instructions of the cooperative automatic trolley and the multi-degree-of-freedom robot arm according to the identified control instruction of the human hand; the controller sends a motor driving control instruction to the multi-degree-of-freedom robot arm as a primary control instruction, and covers closed-loop position and rotating speed control signals of a plurality of motors in the multi-degree-of-freedom robot arm; the motor driving control instruction sent by the controller to the automatic coordinated trolley is a secondary control instruction, and covers closed-loop position and rotating speed control signals of 4 driving wheel-side motors; the intelligent controller preferentially outputs a primary control instruction to respond to the motion guidance of the human hand, and if the motion area exceeds the motion area of the multi-degree-of-freedom robot arm, a secondary control instruction is output to continue responding to the motion guidance of the human hand, so that the clamp moves to a target position and finishes the specified motion.

Furthermore, the multi-degree-of-freedom robot arm is fixedly arranged on the cooperative automatic trolley, and cooperative operation of different priority levels is adopted; the intelligent controller can judge whether the stroke exceeds the action area of the multi-degree-of-freedom robot arm according to the motion control and result feedback of the multi-degree-of-freedom robot arm; when the charging port of the charging vehicle exceeds the length of the multi-degree-of-freedom mechanical arm, the intelligent controller can drive the automatic trolley in cooperation to quickly approach the position of the charging port, and the insertion or extraction operation of the charging head is realized according to the guidance of human hands based on machine vision.

Preferably, the automatic cooperative trolley is arranged by adopting an omnidirectional wheel, and the multi-degree-of-freedom mechanical arm on the automatic cooperative trolley can be conveniently driven to have 3 degrees of freedom such as left and right movement, front and back movement or axial rotation around the height in a horizontal plane; and the automatic trolley can give an emergency braking command by the intelligent controller under the feedback of machine vision signals, so that the collision of people or vehicles and other foreign objects can be avoided, and the safety is improved.

Different from the prior art, the technical scheme has the following advantages: the charging station comprises a charging pile, a charging head, a wire harness, a clamp, a vision sensor, a multi-degree-of-freedom robot arm, an intelligent controller, a cooperative automatic trolley and the like. The man-machine cooperation guiding type plug-in charging head device based on machine vision is adopted, and non-contact and efficient charging operation of personnel is achieved. Not only reduces the technical difficulty and the cost, but also can conveniently serve special crowds with weak limbs. In addition, through the cooperation of the stepped motion control and the cooperative operation of the cooperative automatic trolley and the multi-degree-of-freedom mechanical arm, the charging station can serve electric vehicles with different specifications and different charging port distances, and has high safety.

Drawings

Fig. 1 is a schematic diagram of main components of a user-side new energy vehicle energy storage charging station;

FIG. 2 is a 6 degree of freedom representation of a robotic arm and 3 degrees of freedom of a cooperating robotic trolley;

fig. 3 is a work flow chart of the energy storage charging station for the new energy vehicle at the user side.

Description of reference numerals:

1. charging piles;

2. a charging head and a wire harness;

3. a clamp;

4. a vision sensor;

5. a multi-degree-of-freedom robot arm;

6. an intelligent controller;

7. an automated cart is coordinated.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1, the energy storage charging station for a new energy vehicle at a user side provided in this embodiment mainly includes a charging pile 1, a charging head, a wire harness 2, a fixture 3, a vision sensor 4, a multi-degree-of-freedom robot arm 5, an intelligent controller 6, a cooperative automatic cart 7, and other components. The charging pile 1 is provided with an installation frame of a cantilever beam structure and used for placing a charging head and a wiring harness 2, so that the clamping operation of the charging head by a clamp is not interfered; the multi-degree-of-freedom robot arm 5 is fixedly arranged on the cooperative automatic trolley 7, and the two can realize cooperative operation; the vision sensor is fixedly arranged on a fourth shaft arm of the multi-degree-of-freedom robot arm and is used for capturing and identifying the charging head, the hand motion and the position of a charging port of a vehicle to be detected; the single-degree-of-freedom clamp is arranged at the tail end of the multi-degree-of-freedom robot arm, so that the position change of multiple spatial degrees of freedom can be realized, but the clamp only has one clamping degree of freedom; the utility model provides a user side new energy automobile energy storage charging station can realize that people's cooperation guide formula based on machine vision pulls out and inserts charging plug equipment, realizes that personnel contactless and high success rate's charging operation.

In the embodiment of the invention, the man-machine cooperation guiding type plug-in charging head equipment based on machine vision is mainly realized, the non-contact and high-efficiency charging operation of personnel is realized, and the specific realization principle is as follows:

(1) the control instruction identification of the clamp grabbing charging head is as follows: as shown in fig. 1 and 2, the visual sensor 4 captures and recognizes the guidance motion of the human hand, including 6 degrees of freedom, such as up-down translation, left-right translation, front-back translation, pitching motion, side-turning motion, and rotation motion, so as to send a spatial 6-degree-of-freedom position control signal of the jig to the intelligent controller 6. In addition, the working state control signal of the clamp 3, clamping or loosening, can be further identified through opening and closing of appointed fingers.

Furthermore, the vision sensor 6 is specified to capture the motion track of the palm of the human, and when the overall palm contour becomes larger or smaller, a control command of the clamp 3 in the upward direction or the downward direction is output; when the whole palm profile moves left and right at the same horizontal height, a control instruction of the clamp 3 to the left or the right is output; when the whole palm profile rotates clockwise or anticlockwise at the same horizontal height, outputting a control instruction of the clamp 3 clockwise or anticlockwise; when the whole palm profile moves back and forth at the same horizontal height, a control instruction of the clamp 3 in the forward or backward direction is output; when the front and back longest distance of the whole palm profile is unchanged and the left and right longest distance is shortened, a control instruction of turning the clamp 3 left and right is output; when the front-back longest distance of the overall palm profile is shortened and the left-right longest distance is unchanged, outputting a control instruction of turning the clamp 3 back and forth; when only the index finger of the whole palm bends to shorten or straightens to lengthen, a control instruction of clamping or loosening the clamp is output.

(2) Grabbing control of the charging head: as shown in fig. 3, the intelligent controller 6 calculates and distributes the rotation amount of each motor shaft of the multi-degree-of-freedom mechanical arm 5 and four driving motors of the cooperative automatic trolley 7 according to the signals collected by the vision sensor 4, and further drives the clamp 3 to simulate the motion track of a human hand to continuously approach and grab the position of the charging head.

Further, the intelligent controller 6 respectively outputs control instructions of the cooperative automatic trolley 7 and the multi-degree-of-freedom robot arm 5 according to the identified human hand control instruction; the motor driving control instruction sent to the multi-degree-of-freedom robot arm 5 by the intelligent controller 6 is a primary control instruction and covers closed-loop position and rotating speed control signals of a plurality of motors in the multi-degree-of-freedom robot arm 5; the motor driving control instruction sent to the automatic coordinated trolley 7 by the intelligent controller 6 is a secondary control instruction, and covers closed-loop position and rotating speed control signals of 4 driving wheel motors; the intelligent controller 6 preferentially outputs a primary control instruction to respond to the motion guidance of the human hand, and if the motion area exceeds the motion area of the multi-degree-of-freedom robot arm 5, a secondary control instruction is output to continue responding to the motion guidance of the human hand, so that the clamp 3 moves to a target position and finishes the designated motion.

The multi-degree-of-freedom robot arm 5 is fixedly arranged on the automatic cooperative trolley 7, and cooperative operation of different priority levels is adopted; the intelligent controller 6 can judge whether the stroke exceeds the action area of the multi-degree-of-freedom robot arm 5 according to the motion control and result feedback of the multi-degree-of-freedom robot arm 5; when the charging port of the charging vehicle exceeds the length of the multi-degree-of-freedom mechanical arm 5, the intelligent controller 6 can drive the automatic trolley 7 in cooperation to quickly approach the position of the charging port, and the next step of inserting operation of the charging head is realized according to the guidance of human hands based on machine vision.

(3) The charging head is inserted into a vehicle charging port: as shown in fig. 3, the operation of step 1 is repeated, and a man-machine cooperation guiding mode is continuously adopted, so that the intelligent controller 6 drives the multi-degree-of-freedom robot arm 5 and the clamp thereon to move to the vehicle charging port position. When the charging port of the charging vehicle exceeds the maximum arm length of the multi-degree-of-freedom mechanical arm 5 at a certain height, the intelligent controller 6 drives the automatic trolley 7 to run to the position of the charging port of the vehicle in cooperation. When the robot enters the operation range of the multi-degree-of-freedom mechanical arm 5, the intelligent controller 6 calculates and distributes the rotation quantity of each motor shaft of the multi-degree-of-freedom mechanical arm 5 according to the hand guiding signals collected by the vision sensor 4, and then drives the clamp 3 and the charging head 2 clamped by the clamp to be inserted into a vehicle charging port.

(3) The charging head is reset: as shown in fig. 3, when the vehicle meets the charging termination condition, the charging pile terminates charging, and at this time, the intelligent controller 6 may drive the cooperative automatic vehicle 7 to return to the initial position in a reversible manner according to the previous charging trajectory. Further, the intelligent controller 6 drives the multi-degree-of-freedom mechanical arm 5 to put the charging head 2 back on the placing frame of the charging pile 1. The homing operation of the charging head can also realize the homing of the charging head 2 in a whole process by a manual guide mode.

Different from the prior art, the technical scheme has the following advantages: the charging station comprises a charging pile, a charging head, a wire harness, a clamp, a vision sensor, a multi-degree-of-freedom robot arm, an intelligent controller, a cooperative automatic trolley and the like. The man-machine cooperation guiding type plug-in charging head device based on machine vision is adopted, and non-contact and efficient charging operation of personnel is achieved. Not only reduces the technical difficulty and the cost, but also can conveniently serve special crowds with weak limbs. In addition, through the cooperation of the stepped motion control and the cooperative operation of the cooperative automatic trolley and the multi-degree-of-freedom mechanical arm, the charging station can serve electric vehicles with different specifications and different charging port distances. As no physical contact with high-voltage equipment is made by hands in the whole process, the safety of charging operation and indirect infection in epidemic situation are improved.

It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.