| At present,most of the domestic indoor pollution situations are worth anxious.Various new building materials,decoration materials and commodity of chemical enter into indoor enviroment and become sources of pollution.In addition, the use and popularity of air-conditioning decrease the indoor ventilation rate obviously,resulting in the accumulation of residential indoor pollution and worse indoor air quality.For all above these reasons,most of our country's building ventilating situations become relatively bad and cannot satisfy the requirements of our country's "Civil construction Indoor environment Contamination control Standard" concerned basically.Usually, we improve the indoor hot environment and the air quality through the machine ventilation when the natural ventilation can't meet the needs. The indoor environment regulating system on which this paper study belongs to the area of technology. It is a full use of the outdoor environmental conditions through the survey,comparison,optimization of building indoor&outside temperature, humidity, and so on,and then control ventilation equipments,the window and window curtain and air-condition.By this process,the system can achieve the purpose of regulating building indoor environment intellectually and improve the indoor air quality.This system uses the hierarchization and modular design, the whole system is composed by the data acquisition system, the MCU control system and the computer supervisory system. The system takes the MCU SST89E58RD2 as core, JWSL-2-wall series of temperature and humidity sensors as a measuring device, capture and store the sensor data through the connection between MCU and sensors. In MCU system, we have to realize the data real time display,warning when beyond the limited pronunciation and the data supplementary storage function. As the center of computer monitoring system ,MCU communicate with computer through RS232/RS485 system bus and transmit the collected date to monitor computer.The monitor computer do the recording,memory and processing jobs for the data which MCU transmits ,and then these data are supplied for the staff to browse, record and related process. |
