Data fusion method for measuring sand content by capacitive sensor

• Main Authors: WANG JIANPING, DENG LUOSHENG, JIN JIANHUI, CHE GUOLIN
• Format: Patent
• Language: Chinese; English
• Published: 03.01.2023
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; BASIC ELECTRONIC CIRCUITRY; CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; RESONATORS; TARIFF METERING APPARATUS; TESTING

The invention relates to a data fusion method for measuring the sand content through a capacitive sensor, and belongs to the technical field of river sand content measurement. The method comprises the following steps: synchronously acquiring data information such as capacitance, water temperature and conductivity by using multiple sensors; abnormal value identification is carried out on each item of data, and after abnormal values are eliminated, an interpolation method is adopted for supplementation; sage-Husa adaptive Kalman filtering is adopted to carry out optimal estimation on each item of data; and carrying out data fusion processing on environmental information such as capacitance, water temperature, conductivity and the like and sand content information. According to the invention, the influence of environmental factors such as temperature on sand content measurement is eliminated, and the accuracy of the sand content measurement result of the capacitive sensor is improved. 本发明涉及一种电容式传感器测量含沙量的数据融合方法，属