[b]Energy-Saving Ventilation System Solution for Computer Rooms[/b] With the rapid development of my country's economy, the energy shortage problem has become increasingly prominent. Building a resource-saving society is a necessity for my country's sustainable development. Reliability and energy saving are two eternal themes for communication power supplies. In the past, we have always attached great importance to the reliability of communication power supplies, but the importance attached to energy saving needs to be strengthened. At present, to improve the economic benefits of telecommunications operators, we must both increase revenue and save all possible expenses. In terms of energy saving in telecommunications enterprises, the power supply profession has a broader scope than other professions. Communication computer rooms operate continuously for 8760 hours a year, and the changes in the computer room do not change much with the busy or quiet periods of business, so they are always operating at full capacity. Due to the requirements of heat insulation, moisture insulation and cleanliness, the computer room is completely enclosed, and the insulation of the building envelope of the computer room is also very good. Even in winter, cooling is required without heating. To meet the requirements, the air conditioners in the computer room must run all year round. The span of the computer room is very large, which not only causes uneven temperature distribution in the computer room, but also further prolongs the cooling operation time of the air conditioning compressor. Fresh air is a natural cold source in spring, autumn and winter. Fresh air is directly introduced from outdoors, filtered, and then delivered into the equipment room to regulate the ambient temperature. System Workflow The system connects to a computer via a 485 bus. Under the configuration software, the system fan's low-temperature threshold (air conditioner starting heating temperature T1), medium-temperature threshold (fan starting temperature T2), high-temperature threshold (air conditioner starting temperature T3), indoor-outdoor temperature difference (T4), temperature hysteresis (T5), and other settings are configured. The system monitors indoor and outdoor temperatures and outdoor humidity in real time. Under the guidance of a specific mathematical model algorithm, it automatically controls the fans and air conditioners to achieve optimal energy savings. In addition, the base station ventilation energy-saving system also includes: l Turning off the air conditioner and starting the ventilation system when someone enters (i.e., when the access control is opened). l Controlling fan ventilation and air conditioner operation when people are present. l Rotating air conditioner operation every eight hours during normal temperature conditions (rotation time can be set). l Accumulating and displaying the operating time of both air conditioners separately, and storing the data; data is not lost after power failure. Upward communication function: Outputs temperature, current, and air conditioner operating status via RS485/RS422 or RS232, and allows for remote control. Downward communication function: RS485 controls and powers the remote control; RS232 is reserved for communication with other smart instruments. Automatically controls the air conditioner once every hour. Automatic restart function after power outage: The controller automatically sends a remote control command every 5 minutes. If an AC voltage sensor is connected, a remote control command is sent immediately if the detected AC voltage is greater than 150V; otherwise, no command is sent. The system also has an air conditioner alarm function, divided into air conditioner alarm and remote control communication status alarm. The base station ventilation energy-saving system can operate independently or connect to a power monitoring module via RS232 or RS485 bus, uploading data to the monitoring center through different transmission networks. This system primarily aims to improve the operating efficiency of the air conditioner by utilizing the principle of automatic ventilation and temperature regulation, thereby saving energy and reducing operating costs.