為滿足礦井安全生產要求，介紹了一種以at89C51單片機為主控器，對環境空氣的溫度、有毒易燃氣體的濃度等進行檢測的監控系統。該系統配合外圍電路能實現對上述環境指標的控制并存儲相關數據與上位PC機通信。它采用硬件抗干擾和軟件抗干擾技術，以確保整個系統工作的準確性。
Abstract:
In order to meet the needs of mine produce safety，a kind of intellignet mine ambient monotoring and control system based on at89C51 is introduced.This system can detect the temperature of ambient of mine，the density of poisonous inflammable gas,combined external circuit.With its function part， this system can change above-mentioned elements.
針對51單片機系統中常用的A/D轉換器價格高、精度低的缺點，介紹TI公司的16 位的帶有I2C串行接口的A/D轉換器ADS1110的工作原理，給出ADS1110與at89C51單片機系統的接口電路和軟件設計。實踐證明，ADS1110具有高性價比和實用性。
Abstract:
According to the disadvantages of high expense and low accuracy of the general A/D converter used in MCS51 microchip system,the principle and working process of a high accuracy 16-bit A/D conversion ADS1110 which has I2C bus and belongs to TI Company are proposed here as well as the interface of ADS1110 to at89C51 and software list.It is proved to be high performance index and practicability.
