Returning method of self-moving device, self-moving device, storage medium, and server

Patent metadata

Field	Value
Publication number	US-12061476-B2
Application number	US-202117525154-A
Country	US
Kind code	B2
Filing date	Nov 12, 2021
Priority date	Dec 15, 2016
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

A returning method of a self-moving device, a self-moving device are provided. In the returning method, a self-moving device autonomously moves inside a working region based on a map. Specifically, the method includes: acquiring a current position of the self-moving device in the working region; selecting a return path to a target position according to the current position; determining a reuse status of the return path, determining, based on the reuse status of the return path, whether to reselect a return path; and enabling the self-moving device to return to the target position along the selected return path.

First claim

What is claimed is:

1. A pet collar system comprising:
a base station in communication with an autonomous lawn mower;
a collar body configured to be worn by a pet, the collar body being in communication with the base station; and
a training apparatus disposed on the collar body, the training apparatus including:
a mobile satellite antenna;
a training apparatus communications module;
a microprocessor; and
an alarm,

wherein the mobile satellite antenna is configured to:
receive collar positioning data observed by a satellite positioning system; and
send the received collar positioning data to the microprocessor;

wherein the microprocessor is configured to:
store a pet movement boundary region, the pet movement boundary region being based on at least part of a map boundary region learned by the autonomous lawn mower;
perform positioning correction processing according to the collar positioning data;
determine whether a distance between a pet and the pet movement boundary region is less than or equal to a preset distance threshold; and
when the distance between the pet and the pet movement boundary region is less than or equal to the preset distance threshold, send an alarm signal to the alarm; and

wherein the alarm is configured to output alarm information according to the alarm signal.

2. The pet collar system of claim 1 , wherein the base station is configured to:
store base station coordinate information;
receive base station positioning data observed by the satellite positioning system;
compute a differential observation value according to the base station coordinate information and the base station positioning data;
obtain a positioning error correction value; and
send the positioning error correction value to the training apparatus via a base station communications module;
wherein the training apparatus communications module is configured to:
receive the positioning error correction value sent by the base station; and
send the received positioning error correction value to the microprocessor, and

wherein the microprocessor is further configured to perform further positioning correction processing according to the positioning error correction value.

3. The pet collar system of claim 2 , wherein the microprocessor further comprises:
a storage unit configured to store the pet movement boundary region;
a positioning correction unit configured to perform positioning correction processing according to the collar positioning data and the positioning error correction value, to obtain current pet position coordinate information;
a position determining unit configured to:
compute the distance between the pet and the pet movement boundary region according to the current pet position coordinate information, and
determine whether the distance between the pet and the pet movement boundary region is less than or equal to the preset distance threshold; and

an alarm unit configured to output an alarm signal to the alarm when the distance between the pet and the pet movement boundary region is less than or equal to the preset distance threshold.

4. The pet collar system of claim 1 , wherein the pet collar system further includes an acceleration sensor, the acceleration sensor is disposed on the collar body, the acceleration sensor is connected to the microprocessor, and the acceleration sensor is configured to acquire pet movement acceleration, and send the acquired pet movement acceleration to the microprocessor.

5. The pet collar system of claim 4 , wherein the microprocessor further comprises: a power management unit,
wherein the power management unit is configured to: receive the pet movement acceleration, and
compare the pet movement acceleration with a prestored acceleration threshold,
wherein when the pet movement acceleration is less than or equal to the prestored acceleration threshold, a sleep mode is started to enable the microprocessor to enter a sleep state, and
wherein when the pet movement acceleration is greater than the prestored acceleration threshold, the microprocessor wakes up from sleep mode.

6. The pet collar system of claim 1 , wherein the pet collar system further includes a terminal communications module,
the microprocessor exchanges information with a remote terminal by using the terminal communications module, and
the remote terminal includes one or more of a mobile phone, a tablet, and a computer.

7. The pet collar system of claim 2 , wherein the pet movement boundary region is the map boundary region learned by the autonomous lawn mower.

8. The pet collar system of claim 1 , wherein the pet movement boundary region is adjustable, by a user, from the map boundary region learned by the autonomous lawn mower.

9. The pet collar system of claim 2 , wherein the pet movement boundary region is stored in advance.

10. A pet collar control method for restricting a pet to a pet movement boundary region, the pet collar control method comprising:
receiving collar positioning data observed by a satellite positioning system;
performing positioning correction processing according to the collar positioning data, to obtain current pet position coordinate information;
computing a distance between the pet and a preset pet movement boundary region according to the current pet position coordinate information, the preset pet movement boundary region being based on at least part of a map boundary region learned by an autonomous lawn mower;
determining that the distance between the pet and the preset pet movement boundary region is less than or equal to a preset distance threshold; and
in response to determining that the distance between the pet and the preset pet movement boundary region is less than or equal to the preset distance threshold, outputting an alarm signal.

11. The pet collar control method of claim 10 , further comprising:
receiving a positioning error correction value sent by a base station; and
performing further positioning correction processing according to the positioning error correction value.

12. The pet collar control method of claim 11 , wherein before the receiving the collar positioning data observed by the satellite positioning system, and the receiving the positioning error correction value sent by the base station, the pet collar control method further comprises:
receiving, by the base station, base station positioning data observed by the satellite positioning system;
computing a differential observation value according to the base station positioning data and prestored base station coordinate information; and
obtaining the positioning error correction value.

13. The pet collar control method of claim 10 , wherein the pet collar control method further comprises:
detecting a pet movement acceleration;
comparing the pet movement acceleration with a prestored acceleration threshold; and
in response to determining that the pet movement acceleration is less than or equal to the prestored acceleration threshold, starting a sleep mode to enable a microprocessor to enter a sleep state; or
in response to determining that the pet movement acceleration is greater than the prestored acceleration threshold, waking up the microprocessor from sleep mode.

14. The pet collar control method of claim 10 , wherein the preset pet movement boundary region is the map boundary region learned by the autonomous lawn mower.

15. The pet collar control method of claim 14 , wherein the preset pet movement boundary region is adjustable, by a user, from the map boundary region learned by the autonomous lawn mower.

16. The p

Assignees

• Positec Power Tools Suzhou Co Ltd

Inventors

• Zhou Chang
• Tan Yiyun
• Shao Yong
• Liu Fangshi
• Wong Ka Tat Kelvin

Classifications

• G05D1/248

  generated by satellites, e.g. GPS · CPC title

• G05D1/227

  Handing over between remote control and on-board control; Handing over between remote control arrangements · CPC title

• A01K15/023

  Anti-evasion devices · CPC title

• G05D1/0278

  using satellite positioning signals, e.g. GPS · CPC title

• G05D1/0212

  with means for defining a desired trajectory (involving a plurality of land vehicles G05D1/0287) · CPC title