基于ARM的自计式水位采集器

Self- recording Water- Level Acquisition Based on ARM

为了满足对灌区水情信息实时测报的需求,研究开发了一种基于ARM的自计式水位采集器。该采集器以LPC2132为核心,采用高精度的超声波水位传感器和单片机智能系统实现对水位信息的测量和流量的计算,再将数据进行处理整合之后,以SPI模式通过SD卡接口电路存储数据。该设计集水位采集、流量计算、数据的处理存储于一体,实现了对水位信息的自动实时采集记录,且工作稳定可靠、功耗低,更适用于电池供电、长时间无人看守的荒野河道和偏远水库等场合。

A self-recording water-level acquisition based on ARM has been developed to meet the demands of the fact of water-condition measuring in irrigation districts. This system takes LPC2132 as the core module, by using high-preci-sion ultrasonic water-level sensor and microcontroller smart system into the measurement of water level and the calcula-tion of flow rate, the data can be done and then can be saved into the SD card in SPI mode through interface circuit of SD card after integrating. The design of this acquisition is an combination of water level collection, flow calculation, data processing and storage, can automatically collect and record the information of water level in real-time. And it is stable, reliable, low power consuming, more suitable for battery-powered, unattended wilderness river, remote reservoirs, and other occasions.