Magnetic static level settlement monitoring system, high precision (absolute pressure accuracy 0.1mm), stable, RS485-RTU digital signal output + wireless 4GDTU + cloud monitoring platform and mobile APP, to achieve 365*24h long-term measurement and monitoring of settlement of infrastructure projects such as foundations, foundation pits, tunnels, tracks, high-speed railways, highways, mountains, slopes, dams, power stations, base towers, large storage tanks, etc.
1.Overview of the Settlement Monitoring System of the Magnetic Static Level:
From construction to the end of use, the project hopes to meet the design quality standards, ensure safe use, and extend the service life as much as possible. The main settlement monitoring of the project is to predict the excessive vertical deformation or sinking or floating of the building that may occur during the construction and use of the main structure, and to provide timely feedback on the safety of the building to ensure safety and reliability. It can also provide theoretical basis and experience for future engineering design.
(I) Purpose of settlement monitoring
1, Evaluate the safety status of the project based on the data analysis of on-site settlement monitoring;
2, On the basis of data collection, analyze and predict the monitoring data, issue early warnings and alarms, and submit settlement monitoring reports and analysis reports to the owner, supervisor, construction unit and safety management team in a timely manner to provide technical support for safety management decisions;
3、Accumulate data and information to provide experience for future engineering design and construction;
4、After the settlement monitoring data is analyzed and processed with necessary calculations and judgments, the construction quality is predicted and feedback is given.
(II) The significance of settlement monitoring
1、Use modern information technology to guide construction and provide reliable and continuous settlement monitoring data.
2、Collate monitoring information in a timely manner, establish information feedback data through data processing, and compare the on-site measurement results with the predicted values to determine whether the safety status of the project meets the expected requirements.
3、Ensure the safety of buildings through engineering settlement monitoring. In addition, the monitoring results can be compared with the theoretical predicted values, and the inverse analysis method can be used to seek theoretical formulas that are closer to reality to guide other similar projects.
II. Framework and composition of the magnetic static level settlement monitoring system:
(I) Framework diagram
(II) System composition:
1、Magnetic static level PT500-SZY20/SZY30 Quantity: Several (at least2sets or more);
2、4GWireless acquisition module PT500-990 & ... style="font-family:宋体">Quantity:1set (third party available);
5, power supply & nbsp; <span Quantity: 1 set (24VDC or 220AC); ... Quantity:1pcs;
7、10mmLiquid tube & ... style="font-family:宋体">Quantity: several meters (calculated according to the distance from the current project site);
9, Wiring protection tube ... style="font-family:宋体">, conductive medium (water or antifreeze)ly:宋体">Quantity: several liters (calculated according to the distance from the current project site);
Three, Magnetic static level instrument settlement monitoring system performance parameters:
(I), main performance parameters of static water meter
1. Sedimentation range: 0-100mm、200mm、300mm、500mm、1000mmoptional
2、 Comprehensive accuracy: ±0.1mm(absolute pressure value error)
3. Update frequency 10Hz
4. Power supply voltage 24VDC (9～30VDC)
5. Working current <50mA
6. Life Life ≥10010,000 times
7. Environmental temperature -40～70℃
8. Humidity/Dew point style="font-family:宋体">humidity90%, no condensation
9. temperature coefficient <30pp/C
10, protection levelIP67
(II),4Gmain performance parameters of wireless communication module
1、Operator: China Mobile 4G
2、Data transmission mode: transparent transmission/no sleep
3、Communication protocol: MODBUS RS485-RTU
4、Maximum number of slave connections: 256points (recommended to be less than 64points)
5、Power supply: 12-24VDC
6、Communication protocol: MODBUS RS485-RTU
7、Communication protocol: MODBUS RS485-RTU
8、Communication protocol: MODBUS RS485-RTU
9、Communication protocol: MODBUS RS485-RTU
10、Communication protocol: MODBUS RS485-RTU
11、Communication protocol: MODBUS RS485-RTU
12、Communication protocol: MODBUS RS485-RTU
13、Communication protocol: MODBUS RS485-RTU style="font-family:宋体">、Receive and transmit current is less than 100mA
7、Including flow card, 500M/month*3year
(III) Main performance parameters of cloud monitoring platform
1、Device configuration, collection, analysis
2、Device grouping, networking, adding, deleting management
3、Settlement data, real-time data monitoring and display
4、Data statistics, query, download
5、Data warning, recording, and sending to users
