A high efficiency, informatization, automation water-level monitoring system was designed. It was very helpful to improve the level of hydrological forecast and the level of geological disasters forecast.This water-level monitoring system was based on a 32 bits LM3S615 embedded microcontroller as the main control unit. It consisted of four modules: the main control unit(LM3S615),the signal acquisiton and conduction module, the power supply module and the wireless transceiver module. In the system, the redundant power supply circuit was designed to improve the system’s reliability further. After the test, the operation of the system has been able to complete the expected target, and achieve the performance requirement. At the same time, it also has the very good instruction function for the development of related industrial products.

No abstract

To solve the problems of frequent network link jitter and high bit error rate is the development direction of power grid communication technology. Therefore, a multi-channel data stream transmission method of Internet of things in power systems based on big data analysis is proposed. The data stream matching method based on big data stability mechanism is constructed by using data stream matching method to match the data stream to be transmitted and improve the anti-noise performance of the transmission process; the multichannel model of data stream transmission is constructed, and the matched data stream is transmitted by the multi-channel model; the big data analysis technology is used to process the data stream transmission process and improve the transmission performance of the model; the adaptive multi-channel equalization control method of sampling decision is used to realize the equalization design of data stream transmission channel, optimize the model transmission process, and reduce the bit error rate of transmission. Experimental results show that this method has better channel equalization performance; the link jitter frequency of this method is low, and it has better transmission stability; the lowest bit error rate can reach 0%, and the reliability of data stream transmission is high.