Design Of Intelligent Ventilation And Temperature Control System For Base Station/computer Room

With the rapid development of mobile communications and the gradual coverage of mobile communications in remote areas,a large number of base stations are needed;in the narrow environment of the base station,the equipment needs to work around the clock,which will generate a lot of heat,and the base station equipment works.At high temperatures,its service life will also be greatly shortened.The traditional air-conditioning cooling system consumes a lot of electric energy in all-weather work,which is contrary to the process of modern green development.In some cities where the annual temperature is not too high,the fan can be used instead of the traditional air-conditioning cooling system to reduce the use of electric energy..The old-fashioned fan cooling system has a single function.The temperature is turned on by measuring the temperature,the speed control is not provided,and the condition monitoring of the cooling system is not performed.The pipeline is not arranged inside the base station,and the cooling effect is also poor.The base station fan cooling system designed in this study is mainly divided into two parts: first,the structural design of the fan cooling system;second,the cooling system design.The designed fan cooling system structure design installs the relevant pipelines in the base station,and installs the pipeline fans in the arranged pipelines;the arranged pipelines will extend to the vicinity of the heat-generating equipment,and the wind generated by the wind turbine can discharge the hot air in the base station.And the outside air is delivered to the base station,and the cold air input end is output from the lower side of the heat generating device to the upper part by cooling the sent air;in the design,a separate fan discharges the hot air generated by the heat generating device to the outside,and the heating device Most of the generated hot air is collected above the equipment.There are related pipelines arranged above the heating equipment,which can accurately extract the hot air in the base station;and have special dustproof and anti-blocking design in the inlet and outlet of the pipeline.The cooling system design adopts STM32 as the core processing device,and multiple temperature sensors are arranged indoors and outdoors to monitor the overall ambient temperature inside and outside the room.According to the data collected by the regional temperature sensor,the nearest fan is turned on when the threshold value is exceeded;the different outputs are different from temperature.The duty cycle of the PWM wave controls the speed of the fan.The start of the fan will be adjusted according to the work of the system.After starting,it can perform normal work and the base station cools down.When the fan is working,the system will monitor the working status of each fan,mainly to monitor the fan speed,power and pipeline blockage.The fan speed is monitored by the infrared pair tube,and the power is monitored by the current sensor;the STM32 determines the collected fan speed and fan power in real time,thereby obtaining the blockage of the corresponding pipe of each fan.The ambient temperature monitored during the design,the operating status of the fan,and the blockage are displayed on the LCD serial port screen.When designing the system,optimize the power measurement according to multiple experiments,replace the external A/D conversion chip with the A/D conversion function of STM32,and use the data acquisition and calculation to obtain the real-time working power of the fan,and optimize the acquisition method.Accelerate the operating speed of the fan system while ensuring the accuracy of the data.When measuring the speed of the fan,the accuracy of the measurement and the speed of measuring the speed of multiple sets of fans are improved by controlling the interrupt counter and the GPIO corresponding to the STM32.This process greatly reduces the time required for measurements;by optimizing the multi-speed and power measurements in the system,the overall system's operating rate is increased by a factor of two.The system is designed with the corresponding control circuit,which can be directly inserted into the control circuit through the plug-in during installation.According to the relevant problems encountered in the experimental debugging,optimize the circuit design;also make the system work more stable.