Two-bus communication and power supply MCU system

Abstract

The invention discloses a two-bus communication and power supply MCU system, and the system comprises an intermediate control module, a terminal module and a bus power supply communication circuit. The intermediate control module is in communication connection with external equipment through serial port communication, and the intermediate control module is in communication and power supply connection with the terminal module through the bus power supply communication circuit; the intermediate control module comprises a first driving circuit module, a first decoding circuit module and a first MCU module with a serial port communication module; the first MCU module is in communication connection with external equipment through the serial port communication module and is used for receiving anequipment instruction of the external equipment and sending a control instruction to the external equipment; the terminal module comprises an RX-TX circuit module, a DC-DC circuit module, an open circuit and short circuit detection module, a second drive circuit module and a second MCU module. The system has the characteristics of high detection precision and good stability.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a two-bus communication and power supply MCU system. Background technique [0002] MCU is called a micro control unit, also known as a single-chip microcomputer or a single-chip microcomputer. It appropriately reduces the frequency and specifications of the central processing unit, and integrates memory, counters, USB, A / D conversion, UART, PLC, DMA and other peripherals. The interface and even the LCD drive circuit are integrated on a single chip to form a chip-level computer, which can be used for different combination controls for different applications. Such as mobile phones, PC peripherals, remote controls, automotive electronics, industrial stepping motors, control of robotic arms, etc., can all be seen with MCUs. In addition, in order to protect people's safe and effective life and work, fire emergency lighting and evacuation indication system, fire fire door moni...

AI Technical Summary

Problems solved by technology

In addition, in order to protect people's safe and effective life and work, fire emergency lighting and evacuation indication system, fire fire door monitoring system, fire power supply monitoring system, fire electrical fire system, fire alarm system and intelligent lighting control system and other fire protection systems It is widely used in production and life. Various fire monitoring systems are controlled by MCU. However, the existing equipment runs self-test to realize the detection function. The detection method is very inconvenient, and the detection accuracy is not ideal.

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