Temperature acquisition structure and temperature acquisition method based on I2C bus in server

Abstract

The invention relates to a temperature acquisition structure and a temperature acquisition method based on an I2C bus in a server. The temperature acquisition structure comprises temperature sensors, which are connected with a microcontroller through a serial data line SDA and a serial clock line SCL of an I2C bus. Each temperature sensor connected to the I2C bus communicates with the microcontroller via a unique address. The microcontroller serving as a master device and the temperature sensors serving as slave devices carry out data communication and temperature information acquisition. Data transmission on the I2C bus only requires two bus lines, a serial data line SDA and a serial clock line SCL. The simple two-line serial I2C bus minimizes interconnection. Therefore, there are fewer IC pins, the server has fewer lines, and the server is smaller and cheaper.

Description

technical field [0001] The invention belongs to the technical field of server temperature control, in particular to an I-based 2 C bus temperature acquisition structure and method. Background technique [0002] At present, as the application range of computer servers is becoming wider and wider, the application environment is more severe, such as high and low temperature environments and vibration shocks, etc. How to make computers or servers work stably in high or low temperature environments has become a bottleneck restricting the development of computers. In order to make the computer adapt to a more severe temperature environment, a temperature control module must be designed inside the computer to control the internal temperature of the computer. [0003] When the temperature is lower than the operating temperature of the computer's internal motherboard, hard disk, display, etc., the temperature information is collected, processed by the single-chip microcomputer in th...

AI Technical Summary

Problems solved by technology

In the temperature control module, the internal temperature of the computer is controlled by a single-chip microcomputer, and the temperature information of the temperature sensor needs to be collected in real time, because the data processed inside the single-chip microcomputer must be a binary digital signal, and when the traditional single-chip microcomputer collects temperature information, it must be designed through hardware. Circuits such as circuit switch selection, amplification, sampling and holding, A / D conversion, etc., convert the temperature information as an analog signal into a digital signal and collect it in the microcontroller. In this way, not only the hardware circuit is complicated, but also the real-time and accuracy of the temperature information cannot be achieved. Guaranteed

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