论文部分内容阅读
为了自动观测某些物理量的变化情况,需要在一定的区域内建立若干微机控制的自动数据采集系统(简称子站)。这样,就可以借助数传机(电台)利用一台主微机(简称主站)对其进行遥控和无线数据通讯如此便构成一个能覆盖很大区域的多微机无线网络系统。在这个系统中,子站是无人管理的微机自动数据采集系统,能定时,自动地对地下水位、水温、密度和气温、气压、温度、风力、风向等水文和气象参数进行数据采集。获得的数据可直接或经预处理后存入子站微机的内存中。子站即是一个完全独立的采集系
In order to automatically observe the changes of some physical quantities, it is necessary to establish a number of computer-controlled automatic data acquisition systems (referred to as sub-stations) in a certain area. In this way, it is possible to make use of a master computer (or master station) for remote control and wireless data communication with a digital transmission machine (radio station), thereby forming a multi-computer wireless network system covering a large area. In this system, the substation is an unmanned microcomputer automatic data acquisition system, which can collect the hydrological and meteorological parameters such as groundwater level, water temperature, density and temperature, pressure, temperature, wind force and wind direction regularly and automatically. The obtained data can be stored in the memory of the sub-station computer either directly or after pre-processing. Substation is a completely independent acquisition system