Iron phosphate lithium battery power supply management system used for service robots and working method

Abstract

The invention discloses an iron phosphate lithium battery power supply management system used for service robots and a working method. The system comprises a iron phosphate lithium battery set, and the iron phosphate lithium battery set is connected with a lithium battery hardware protection circuit. The input end of the lithium battery hardware protection circuit is connected with a charging interface, and the output end of the lithium battery hardware protection circuit is connected with a power supply input interface. The power supply input interface is connected with a power loop and a control loop respectively through a main switch. The output end of the lithium battery hardware protection circuit is connected with a power supplying power supply of an electric quantity measurement and display circuit, and the power supplying power supply of the electric quantity measurement and display circuit supplies power for the electric quantity measurement and display circuit. The electric quantity measurement and display circuit comprises an STM32 chip, wherein the STM32 chip conducts battery remaining power percentage SOC estimation in a mode of combining an ampere-hour integral method and an open circuit voltage method. By means of the system, the power supplies of the service robots can be managed, stable work of an iron lithium battery set is guaranteed, the battery set information is obtained in real time, and the system has the function of power supply expansion.

Description

technical field [0001] The invention relates to a power management system and working method of a lithium iron phosphate battery used for a service robot. Background technique [0002] With the acceleration of the aging of our country, service robots will have broad application prospects in our country, and the technology of service robots has also been developed rapidly. General service robots work based on mobile platforms. Unlike industrial robots, service robots rely on batteries for independent mobile work. At the same time, because the working place of the service robot is a place with intensive human activities such as the family and the hospital, more stringent requirements are put forward for the reliability of the robot. [0003] Restricted by the size, weight, and working mode of the robot, service robots almost always use rechargeable battery packs to provide energy, and the volume of the battery pack is also limited. The robot must complete a certain amount of...

AI Technical Summary

Problems solved by technology

[0003] Restricted by the size, weight, and working mode of the robot, service robots almost alway...

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