Method for docking and automatically charging robot, charging station and robot

1. A method for automatically charging a robot, applied to the robot, comprising steps of:

detecting a distance to a charging station according to a laser ranging signal;

starting laser feature recognition when the distance is determined less than a preset distance, wherein the laser feature recognition is configured to identify the charging station; and

performing a docking process according to a recognition result of the laser feature recognition, the laser ranging signal and an infrared guiding signal;

wherein the step of performing the docking process according to the recognition result of the laser feature recognition, the laser ranging signal and the infrared guiding signal specifically comprises steps of:

acquiring the recognition result of performing the laser feature recognition on a collision object when there is a collision;

outputting an error message, if the collision object is determined to be the charging station according to the recognition result and if a current collision frequency exceeds a preset collision frequency;

performing the docking process by following the infrared guiding signal, if the collision object is determined to be the charging station according to the recognition result and if the current collision frequency does not exceed the preset collision frequency;

determining a motion path according to position information of the charging station, reaching the position of the charging station according to the motion path, and performing the docking process by following the infrared guiding signal, if the collision object is determined to be an obstacle according to the recognition result and if it is detected that the robot is stored with the position information of the charging station; and

performing the docking process by following the infrared guiding signal when it is determined that the obstacle has been circumvented or outputting an error message when it is determined that the obstacle has not been circumvented, if the collision object is determined to be an obstacle according to the recognition result and if it is detected that the robot is not stored with the position information of the charging station.

2. The method according to claim 1 , wherein, the step of starting laser feature recognition when the distance is determined to be less than the preset distance specifically comprises steps of:

detecting whether a collision has occurred when the distance is determined less than the preset distance;

starting the laser feature recognition if it is determined that there is no collision, and performing the laser feature recognition in a direction where the infrared guiding signal is emitted; and

starting the laser feature recognition if it is determined that there is a collision, and performing the laser feature recognition on the collision object.

3. The method according to claim 2 , wherein, before the step of detecting the distance to the charging station according to the laser ranging signal, the method further comprises steps of:

receiving the infrared guiding signal;

pre-processing the infrared guiding signal to determine the direction where the infrared guiding signal is emitted; and

adjusting a motion direction of the robot according to the determined direction where the infrared guiding signal is emitted.

4. The method according to claim 1 , wherein, the step of performing the docking process according to the recognition result of the laser feature recognition, the laser ranging signal and the infrared guiding signal specifically comprises steps of:

acquiring the recognition result of performing the laser feature recognition in a direction where the infrared guiding signal is emitted when there is no collision;

circumventing the obstacle and performing the docking process by following the infrared guiding signal if an obstacle is detected in the direction where the infrared guiding signal is emitted according to the recognition result;

detecting the distance between the current position and the charging station if the charging station is detected in the direction where the infrared guiding signal is emitted according to the recognition result;

determining a docking position according to the currently determined distance, and moving to the docking position; and

performing docking by following the infrared guiding signal at the docking position.

5. The method according to claim 4 , wherein, before the step of detecting the distance to the charging station according to the laser ranging signal, the method further comprises steps of:

receiving the infrared guiding signal;

pre-processing the infrared guiding signal to determine the direction where the infrared guiding signal is emitted; and

adjusting a motion direction of the robot according to the determined direction where the infrared guiding signal is emitted.

6. The method according to claim 1 , wherein, before the step of detecting the distance to the charging station according to the laser ranging signal, the method further comprises steps of:

receiving the infrared guiding signal;

pre-processing the infrared guiding signal, and determining the direction where the infrared guiding signal is emitted; and

adjusting a motion direction of the robot according to the determined direction where the infrared guiding signal is emitted.

7. The method according to claim 6 , wherein, the step of detecting the distance to the charging station according to the laser ranging signal specifically comprises steps of:

emitting the laser ranging signal in the direction where the infrared guiding signal is emitted; and

detecting the distance to the charging station according to the laser ranging signal.

8. The method according to claim 1 , wherein, the method is implemented through

a laser ranging module, a laser feature recognition module and a docking module;

wherein,

the laser ranging module is configured to detect the distance to the charging station according to the laser ranging signal;

the laser feature recognition module is configured to start the laser feature recognition when the distance is determined less than the preset distance; and

the docking module is configured to perform the docking process according to a recognition result of the laser feature recognition, the laser ranging signal and the infrared guiding signal.

9. The method according to claim 8 , wherein, before the step of detecting the distance to the charging station according to the laser ranging signal, the method further comprises steps of:

receiving the infrared guiding signal;

pre-processing the infrared guiding signal to determine the direction where the infrared guiding signal is emitted; and

adjusting a motion direction of the robot according to the determined direction where the infrared guiding signal is emitted.

10. A robot, comprising:

a sensing device;

at least one processor; and

a memory in communication connection with the at least one processor;

wherein,

the sensing device is configured to emit or receive a signal under control of the processor; and

the memory is stored with instructions executable by the at least one processor, wherein the instructions, when executed by the at least one processor, enable the at least one processor to perform steps of:

detecting a distance to a charging station according to a laser ranging signal;

starting laser feature recognition when the distance is determined less than a preset distance, wherein the laser feature recognition is configured to identify the charging station; and

performing a docking process according to a recognition result of the laser feature recognition, the laser ranging signal and an infrared guiding signal;

wherein the step, performed by the at least one processor, of performing the docking process according to the recognition result of the laser feature recognition, the laser ranging signal and the infrared guiding signal specifically comprises steps of:

acquiring the recognition result of performing the laser feature recognition on a collision object when there is a collision;

outputting an error message, if the collision object is determined to be the charging station according to the recognition result and if a current collision frequency exceeds a preset collision frequency;

performing the docking process by following the infrared guiding signal, if the collision object is determined to be the charging station according to the recognition result and if the current collision frequency does not exceed the preset collision frequency;

determining a motion path according to position information of the charging station, reaching the position of the charging station according to the motion path, and performing the docking process by following the infrared guiding signal, if the collision object is determined to be an obstacle according to the recognition result and if it is detected that the robot is stored with the position information of the charging station; and

performing the docking process by following the infrared guiding signal when it is determined that the obstacle has been circumvented or outputting an error message when it is determined that the obstacle has not been circumvented, if the collision object is determined to be an obstacle according to the recognition result and if it is detected that the robot is not stored with the position information of the charging station.

11. The robot according to claim 10 , wherein, the sensing device comprises:

a laser sensing device; and

a device for receiving the infrared guiding signal;

wherein,

the laser sensing device is arranged at top of a main body of the robot, and comprises at least one laser sensor and at least one laser emitter; and

the device for receiving the infrared guiding signal comprises at least two sensors for receiving the infrared guiding signal, wherein the at least two sensors for receiving the infrared guiding signal are arranged at a front portion of the main body of the robot and at a side substantially perpendicular to ground, and the front portion is a portion of the main body of the robot facing toward the direction where the robot moves forward during the movement.

12. The robot according to claim 10 , wherein, the step, performed by the at least one processor, of starting laser feature recognition when the distance is determined less than the preset distance specifically comprises the steps of:

detecting whether a collision has occurred when the distance is determined less than the preset distance;

starting the laser feature recognition if it is determined that there is no collision, and performing the laser feature recognition in a direction where the infrared guiding signal is emitted; and

starting the laser feature recognition if it is determined that there is a collision, and performing the laser feature recognition on the collision object.

13. The robot according to claim 10 , wherein, the step, performed by the at least one processor, of performing the docking process according to the recognition result of the laser feature recognition, the laser ranging signal and the infrared guiding signal specifically comprises steps of:

acquiring the recognition result of performing the laser feature recognition in a direction where the infrared guiding signal is emitted when there is no collision;

circumventing the obstacle and performing the docking process by following the infrared guiding signal if an obstacle is detected in the direction where the infrared guiding signal is emitted according to the recognition result;

detecting the distance between the current position and the charging station if the charging station is detected in the direction where the infrared guiding signal is emitted according to the recognition result;

determining a docking position according to the currently determined distance, and moving to the docking position; and

performing docking by following the infrared guiding signal at the docking position.

14. The robot according to claim 10 , wherein, before the step of detecting the distance to the charging station according to the laser ranging signal, the at least one processor further performs steps of:

receiving the infrared guiding signal;

pre-processing the infrared guiding signal to determine the direction where the infrared guiding signal is emitted; and

adjusting a motion direction of the robot according to the determined direction where the infrared guiding signal is emitted.

15. The robot according to claim 14 , wherein, the step,

performed by the at least one processor, of detecting the distance to the charging station according to the laser ranging signal specifically comprises steps of:

emitting the laser ranging signal in the direction where the infrared guiding signal is emitted; and

detecting the distance to the charging station according to the laser ranging signal.