1. System Introduction
Under the action of traveling vehicles, the bridge structure will produce greater deformation and stress than under the same static load. At the same time, severe natural weather such as sun, wind and heavy rain will also affect the life of the bridge. In the prior art, whether the vehicle bridge is in a dangerous state is usually checked by manual inspection.
The existing technology has at least the following problems: manual inspection is difficult to accurately check whether the bridge is in a dangerous state. In addition, the number of small and medium-sized bridges is huge, the location is not concentrated, and maintenance is difficult. It is easy to ignore maintenance work and cause harm.
Second, the system block diagram
2. Features
1. Centralized data management: Transmit data to the server through wireless communication technology, and process and analyze it in the background.
2. Improve the efficiency of bridge maintenance: remote monitoring can replace manual detection, and the real-time data history of science and technology will require the maintenance of bridge-related personnel.
3. Visualization of bridge safety status: The calculation of data is displayed graphically, which is more intuitive.
4. Bridge safety early warning: monitor bridge data in real time, alarm the background in time if it exceeds the safety range, and quickly learn which bridge it is.
3. Application Case
Bridge displacement online monitoring
1. Wide measurement range / accurate measurement: The system has a wide range of displacement measurement, accurate measurement, and linear accuracy of ± 0.1%.
2. Low power consumption / convenient power supply: All monitoring devices under this system are designed with low power consumption and support battery or power supply mode, which is convenient for power supply.
3. 24-hour real-time monitoring: online real-time 24-hour continuous collection and recording of the displacement of the monitoring points, display the monitoring results in four views of layout, guidelines, curves, tables, etc., to facilitate user observation, the monitoring points can be expanded by thousands Points.
4. Support historical data query: This system uses SQLServer related technology, supports historical data query, and automatically produces historical records and curves. You can query the displacement value and position curve of any north point at any time. Complete and accurate and flexible record printing; selective printing of historical data required by customers.
5. Flexible and reliable networking: It supports multiple data acquisition and communication methods, adopts wireless displacement sensors, flexible networking, no wiring, and easy maintenance. The wireless gateway finally uploads the received information to the monitoring center via GPRS / GSM / 4G network or limited network (Ethernet / RS485 / RS232).
6. Scientific alarm mechanism: the displacement alarm limit can be set and monitored, and an alarm signal can be automatically issued when the data of the monitored point is abnormal. The alarm methods include: on-site multimedia sound and light alarm, mobile phone short message alarm, etc. The system can notify different duty personnel at different times.
7. Complete software functions: The software system has system management, online data monitoring, historical data query, map editing, online map monitoring and other functions.
8. Powerful data processing and communication capabilities: using computer network communication technology, any computer in the local area network can access the monitoring computer, online monitoring of displacement changes at monitoring points, remote monitoring, the system can not only monitor in the duty room , Leaders can also easily view and monitor in their own office.
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