Control device and method of cooling fan of ATCA (Advanced Telecom Computing Architecture) system

Abstract

The invention provides control device and method of a cooling fan of an ATCA (Advanced Telecom Computing Architecture) system. The device comprises temperature sensors, a gusset plate IPMC (Ionic Polymer-Metal Composite) connected with the temperature sensors, and an SHMC (Shelf Management Controller) connected with the gusset plate IPMC, wherein the temperature sensors are used for measuring the temperature values of the areas where the temperature sensors are arranged and transmitting the temperature values to the gusset plate IPMC; the gusset plate IPMC is used for determining the states of the temperature sensors according to the temperature values of the temperature sensors on the gusset plate IPMC and temperature threshold values, determining single-plate temperature states and sending a state change report message to the SHMC according to the changes of the single-plate temperature states, and each temperature sensor at least comprises two temperature threshold values; and the SHMC is used for controlling the speed of the cooling fan according to the state change report message. By adopting the device and the method, the optimal control on the cooling fan can be realized, and energy saving control and noise reduction are realized while the cooling requirement of the system is guaranteed.

Description

technical field [0001] The present invention generally relates to the technical field of communication, and more specifically relates to the cooling fan control of the ATCA system. Background technique [0002] In an ATCA (Advanced Telecommunications Computing Architecture, Advanced Telecommunications Computer Architecture)-based communication system, cooling fans are responsible for the forced cooling of circuit boards and heat-generating devices in the entire system. Since the standard ATCA system provides 14 board slots, and each board slot can consume a maximum of 200W of electrical energy, most of which is converted into heat energy, so the cooling fan of the ATCA chassis needs to dissipate heat close to 2800W. Due to high heat dissipation requirements, many high-power fans are used in the ATCA chassis, which will cause high power consumption of the fans themselves, which will greatly increase the power consumption of the entire ATCA system, and because the fans with st...

AI Technical Summary

Problems solved by technology

Due to high heat dissipation requirements, many high-power fans are used in the ATCA chassis, which will cause high power consumption of the fans themselves, which will greatly increase the power consumption of the entire ATCA system, and because the fans with strong heat dissipation capabilities are selected, the fan noise will be very high. High, causing a lot of noise pollution

[0003] In the existing ATCA system, some manufacturers have controlled the fan speed and noise to solve the above problems, but so far there is no perfect control method to solve this problem systematically

The usual practice now is to obtain the working temperature value of each single board through the chassis management system in the ATCA chassis management system. If the obtained temperature value is higher than the preset threshold value, the fan speed will be controlled to the maximum value to improve the system. For heat dissipation, if the board temperature is lower than the set threshold, the fan speed will be reduced. However, there is no unified design method for reducing the fan speed.

[0004] The existing technology has the following disadvantages: there are few thresholds for judging the temperature of each board, and it is impossible to distinguish the temperature state of the board in more detail; the fan speed control is unstable, and the wind speed is often changed and adjusted continuously, and it is in a large dynamic range; It is often in the "too high" state, which has an impact on the service life of the devices on the board; the power consumption of the fan cannot be optimized, and there is still invalid wind energy loss

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