Application of Tilt Sensor in Dam Safety Monitoring

This paper mainly introduces the application of tilt sensor in dam safety monitoring and its role in the whole monitoring system. Dam safety monitoring system is mainly composed of monitoring instruments and measuring points, among which the monitoring instruments mainly include: dam deformation monitor, dam osmometer, dam displacement monitor and so on. The measuring points mainly include: horizontal displacement of dam foundation, slope, horizontal displacement of dam top, water level in front of dam, water level behind dam and so on. Dam safety monitoring system is a dynamic monitoring system, which is a comprehensive understanding of dam operation, so as to find problems in time and ensure the safety of dam operation. In order to monitor and analyze the safety state of the dam in real time, a perfect monitoring system must be established.

1. Overview of the system

The dam safety monitoring system is generally composed of monitoring instruments and measuring points, among which the monitoring instruments mainly include: dam deformation monitor, dam osmometer, dam displacement monitor and so on. The measuring points mainly include: the water level in front of the dam, the horizontal displacement of the dam top, the horizontal displacement of the dam foundation, the water level in front of the dam and the water level behind the dam. The tilt sensor based on single chip microcomputer is used to measure the tilt angle of the dam.

The inclination of the dam is monitored by the tilt sensor in real time, and the data is uploaded to the host computer through the serial port. By analyzing these data, the host computer can realize the analysis of dam safety status. At the same time, the host computer can save and remotely access the collected data to realize the remote monitoring function. The system supports simultaneous monitoring of up to 4 measuring points and can provide various types of alarm output.

2. The working principle of tilt sensor

Tilt sensor is a special kind of transmitter, and its internal sensitive element is composed of three symmetrical elastic sheets, which are sensitive to displacement in three directions respectively. When the three elastic plates are in equilibrium, there is no deformation inside the sensor, then the three elastic plates are consistent with the displacemence-sensitive sensitive axis, and the output voltage is zero. However, when an elastic sheet is subjected to external force, it moves, because the elastic sheet is asymmetric, it will cause deformation in three directions, and the output voltage will also change. At this time, the internal sensitive element will produce a corresponding displacement change. By detecting this change in displacement, the tilt angle of the object can be measured.

The tilt sensor is mainly composed of housing, sensing element, measuring circuit and power supply. The following is a detailed introduction to the structure of each part:

3. System composition

The system mainly consists of the following parts:

3.1 Monitoring equipment, mainly an inclination sensor and a data collector.

3.2 Communication equipment, mainly including GPRS, 4G wireless transmission equipment and solar power equipment.

3.3 Computers and computers are mainly used for storing data, running programs and setting various parameters.

3.4 Software, mainly used for data analysis and processing, to provide reliable technical basis for the project.

3.5 Software platform, mainly used for real-time data display, collection and the setting of various parameters.

3.6 Solar power supply is mainly used for power supply.

4. System function

4.1 can be operated remotely, timely view the operating status of the system.

4.2 through the database, the dam data can be queried, statistical analysis, remote maintenance, etc.

4.3 the data can be remotely managed, and the operation status of the dam can be mastered at any time.

4.4 data can be exported, and the exported data is transmitted to the computer through the network.

4.5 can be collected data for remote alarm, and send alarm information to the relevant personnel.

4.6 the system has good compatibility, and can be connected with other equipment.

4.7 the collected data can be transmitted to the relevant departments through the wireless network, in order to find the problem in time and solve the problem.

4.8 the system has good scalability and compatibility, you can add or modify the database according to user needs.

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