In order to achieve automatic and accurate alarm of abnormal hydrological position measurement information,a hydro-logical measurement automation alarm system based on high-precision differential positioning method is designed.Collect water level,temperature,humidity and flow signals,extract the signal power data of four hydrological information,calculate the signal power of hydrological measurement in each epoch based on the water level information measurement method of reflection solution,extract the water level change data,use the water level differential positioning method of fuzzy adaptive Kalman filter,set the calculated water level data as the initial value of fuzzy Kalman filter,and correct the measurement noise of hydrological information by using the fuzzy reasoning model,Realize high-precision hydrological information positioning measurement,and if the water level is abnormal,an au-dible and visual alarm will sound.After testing,this system has a water level positioning deviation of less than 0.03m for abnormal sea level fluctuations,and an automatic alarm delay of less than 0.5s.It has the ability to automatically alarm high-precision abnor-mal hydrological positions.
关键词
高精度/差分定位法/水文测量/自动化/报警系统/北斗卫星/反射解算
Key words
high precision/differential positioning method/hydrological measurement/automation/alarm system/beidou satel-lite/reflection solution
维普
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