Processor, external connection device, control system and hot plug method thereof

Abstract

The invention discloses a processor, an external connection device, a control system and a hot plug method thereof and belongs to the automatic control field. The processor comprises a master control chip located in an internal portion, a digital signal communication chip connected to the master control chip, a power supply lead wire located on an external portion and at least one processor physical interface. One end of the power supply lead wire is used for connecting an external power supply and the other end is connected to the master control chip. In the invention, the external connection devices of a same kind can be interchanged and used on the different processors through hot plug; the external connection devices taking a 12C / SPI / UART / GPIO bus mode can be conveniently and rapidly connected to the processor; simultaneously a hot plug flow between the external connection device and the processor can be simplified so that a peripheral device of the external connection device is minimized; and the external connection device is guaranteed to be connected to the processor in low-cost and low-power-consumption modes.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a processor, an external device, a control system and a hot plugging method thereof. Background technique [0002] Sensor (Sensor) is a detection device that can feel the measured information, and can transform the detected information into electrical signals or other required forms of information output according to certain rules, so as to meet the requirements of information transmission and processing. , storage, display, recording and control requirements. It is the first link to realize automatic detection and automatic control. [0003] The actuator (Final Controlling Element) is a device in the automatic control system that uses the signal of the regulating instrument or other control devices as the input signal to adjust the input quantity of the controlled object according to a certain regulation law. It is an automatic instrument, such as regulating valves, baffles an...

AI Technical Summary

Problems solved by technology

[0010] (1) Only the data collection method of the sensor is defined, and the related devices and processing methods of the actuator are not defined;

[0011] (2) The communication protocol is designed based on the USART on the hardware, and the general communication rate is up to 115200bps. Compared with the bus communication rate of I2C / SPI, the communication rate of this interface is lower, and it is not suitable for high-speed devices;

[0012] (3) Each sensor module needs to design a complete processor, memory and other circuits, which will only increase the circuit complexity of the original sensor, and also increase the size and power consumption, which will eventually lead to an increase in the overall cost. When the sensor is damaged , the entire sensor module needs to be replaced, and the cost is high

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