Graduation design: 51 single-chip microcomputer based on the computer room environment temperature monitoring system

Graduation design: 51 single-chip microcomputer based on the computer room environment temperature monitoring system, as an undergraduate, do to make the design "optimal"?
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The system mainly aim is to provide room environment temperature, humidity and the surrounding personnel, the electrostatic potential items, with high performance, high reliability, high efficiency, integration, multifunctional traits monitoring alarm device. Environmental conditions, especially the work environment temperature and humidity on electrostatic property has a great influence on the measurement, the measurement of static electricity is static electricity protective work important part. The engine room environment to be automatic monitoring alarm system can real-time monitoring the telecom room temperature, humidity, electrostatic index, abnormal circumstances can report to the police.

Water pollution on the society and economy brings the serious influence
1. The urban and rural residents threatens the safety of drinking water
Because of our country water environment pollution is serious, make urban and rural residents drinking water safety and security has been threatened. According to the investigation and statistics of the health department, our country has 65.4% of the population of substandard drinking water. The 1989 national environmental protection bureau to the national organization the key environmental protection cities protection of drinking water sources investigation and the results found that 48% of the surface water source, 20% of underground water sources can not reach the standard. Because water pollution caused by social problems quite outstanding. Among them is the typical is 1994 years, 1995 years, huai river mainstream continuous happen a water pollution accident, cause huainan and bengbu, millions of people use such as aimprovement no water to drink for a period of