An Environment Detection Instrument Had Wireless Transmission

Environment detection in the community has been widely used for petroleum,chemical, machinery manufacturing, metallurgical, and other industrial site, shoppingmalls, gas stations and other places. Quickly and accurately to the Environment factor thattemperature pressure humidity and gas concentration has become an important problemdemanding prompt solution. However, due to the laying of the more difficult lines onsome occasions, especially in many complex industrial applications, to the enormousdifficulties in the detection of Environment factor, thereby increasing the potential causesof accidents. The article introduced a system that designed based on AT89S52microcontroller with wireless transceiver capabilities of the Environment factor detectiondevice, a good solution to this problem.The system analyzes the basic principles of signals collected by sensors, with theserial A/D converter TLC2543, to achieve the Environment factor signal acquisition; dueto environmental temperature sensor, in order to reduce the error, the DS18B20asauxiliary devices, temperature compensation of measured data, to improve themeasurement accuracy; wireless transceiver chip nRF905, open to achieve the datatransmission can reach about200m wireless communications; In addition, the circuit alsodesigned the display module on the measurement values show that when the Environmentfactor concentration exceeded, an alarm signal; the same time, the use of wirelesscommunication module TC35i, the GSM network as a platform to send alarm informationto the user phone.Designed and developed a wireless transceiver function of combustible Environmentfactor concentration detection device, the device improves the accuracy of Environmentfactor concentration measurement, high reliability, suitable for installation of complexapplication environments. The problems can notify the alarm information to the user.