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A navigation system and method for autonomous charging of a robot

An autonomous charging and navigation system technology, applied in the field of navigation, can solve the problems of insufficient positioning range, increase the time of response, transmission and reception, and data error, so as to expand the range of positioning, reduce the time of response and wireless transmission, The effect of eliminating errors

Active Publication Date: 2021-03-16
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of wireless modules, the time for reaction, propagation and reception is increased, and there are still certain errors in the overall data, and the positioning range is not large enough

Method used

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  • A navigation system and method for autonomous charging of a robot
  • A navigation system and method for autonomous charging of a robot
  • A navigation system and method for autonomous charging of a robot

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Embodiment Construction

[0043] The present invention is described in detail below in conjunction with accompanying drawing:

[0044] A navigation system for autonomous charging of a robot, characterized in that it includes a transmitting end and a receiving end, the transmitting end includes a signal emission control unit and a signal transmitter unit, and the receiving end includes a signal processing unit and a signal receiving unit;

[0045] The signal transmission control unit includes at least one trigger signal control and generation module, which is used to control the generation and transmission rate of the ultrasonic signal;

[0046] The signal emission control unit is also connected with the motor drive module, and the motor drive module is used to drive the motor to rotate at a constant speed under the control of the signal emission control unit;

[0047] The signal transmitting unit includes an ultrasonic transducer for converting the current signal into an ultrasonic signal;

[0048] Th...

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Abstract

The invention discloses a navigation system automatically charged by a robot and a method. The navigation system comprises a transmitting terminal and a receiving terminal, wherein the transmitting terminal comprises a signal transmitting control unit and a signal transmitter unit, the receiving terminal comprises a signal processing unit and a signal receiving unit, the signal transmitting control unit is used for controlling production of ultrasonic wave signals and transmitting rate, and the signal transmitter unit is used for converting current signals into ultrasonic wave signals. The signal receiving unit is used for converting received ultrasonic wave signals into electric signals and transmitting the signals to the signal processing unit. The signal processing unit is used for acquiring and processing the electric signals produced by the signal receiving unit to obtain the distance and angle of the robot with respect to a source position. The navigation system uses a transducer for transmitting as the source position, the robot determines the self position by calculating the reaching time of received ultrasonic waves transmitted by a source, the time for response, propagation and receiving of a wireless module is omitted, calculated data is more accurate, and a positionable range can be wider.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a navigation system and method for autonomous charging of a robot. Background technique [0002] The application of ultrasonic waves in practice mostly utilizes the principle of its reflection distance measurement. The application in navigation is mainly to measure the distance to the target point by reflection. Since the sound wave reflection is affected by the size, shape and surface finish of the target object, its measurement has certain errors. Directly using the relationship between the propagation time of ultrasonic waves in the air and the time difference of arrival to measure the distance and azimuth angle from the target can eliminate the error caused by reflection to a certain extent. [0003] The ultrasonic navigation module in the prior art uses a single-sending and single-receiving method to transmit ultrasonic waves through the transmitting end carried by the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/20G01S5/28
CPCG01C21/206G01S5/28
Inventor 周风余万方焦建成田天刘贤锴杨中欣梁业彬
Owner SHANDONG UNIV
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