Smart Dam Supervision System

1) The system meets the requirements of the technical specifications for automated safety monitoring of dams, technical specifications for safety monitoring of concrete dams, and technical specifications for safety monitoring of earth-rock dams.

2) The system software utilizes big data technology to integrate multi-source data of dams to build a dam monitoring data management center platform, which is a digital platform that integrates the safety monitoring and early warning management and sharing of reservoir and dam hydrological data, meteorological environment, dam body, and equipment facilities.

3) The system comprehensively applies technologies such as 3D GIS geographic information system, GPS positioning system, RS remote sensing, mobile/broadband networks, Internet of Things, and multimedia, achieving a wide range of data interfaces for hydrology and meteorological data, greatly facilitating the efficient operation and safety management of dams and water conservancy authorities.

4) The monitoring management station can also access mobile apps through the mobile internet, enabling mobile monitoring and management services for dam monitoring, allowing managers to grasp the operational status of the dam and its facilities anytime and anywhere, assisting in management.

5) The monitoring terminal is designed with video and anti-theft functions, equipment status monitoring, and fault diagnosis functions, capable of real-time online monitoring of the normal working status and abnormal warnings of each device and dam through the central station, facilitating the safe and efficient management of the dam.

1) Working Conditions

Collection device: Temperature: -20 to 60℃, allowable relative humidity: ≤95%

Monitoring management station: Temperature: 0 to 50℃, allowable relative humidity: ≤85%

2) Surrounding Environment Requirements

No explosion hazard, no corrosive gases and conductive dust, no severe mold, no intense vibration impact sources.

The grounding resistance of the monitoring station should not exceed 10 ohms.

The grounding resistance of the monitoring management station and monitoring management center station should not exceed 4 ohms.

3) Power Supply Requirements

AC power supply: AC 220V, allowable deviation ±10%.

Uninterruptible Power Supply (UPS), when the AC power supply is cut off, the UPS should maintain normal operation for no less than 30 minutes.

4) Performance Indicators

The system measurement accuracy should meet the requirements of DL/T5178, SL60, and SL268.

Measurement cycle: greater than 10 minutes, adjustable according to needs and characteristics of the measuring device (with or without control components).

System sampling time:

Routine inspection: no control, normal state 1 quick measurement, less than 1 hour; with control, normal state measurement, less than 2 hours.

Selected measurement (single point): no control, normal state measurement, less than 1 minute; with control, normal state measurement, less than 10 minutes.

No control, quick measurement, less than 0.5 minutes.

Response time for calling a new screen (90% of the screen): ≤1s.

Dynamic data refresh time on the displayed screen: ≤1s.

Response time for main control level control function: ≤1s.

Time from alarm or accident occurrence to sound output on the screen: ≤1s.

Average fault-free working time (MTBF): 50,000 hours.

1) The system's巡测 (巡测) and选测 (选测) functions allow for data collection methods to be categorized into central control and automatic control. It enables real-time collection of operational parameters, equipment parameters, meteorological information, and status parameters at various measurement points of the dam, gathering data such as displacement, deformation, stress, cracks, saturation line, seepage flow, soil pressure, and pore water pressure for real-time data monitoring.

2) The system display function can display the overall layout of the building and monitoring system, the composition of each monitoring subsystem, process curves, alarm status display windows, etc.

3) The system operation function implements monitoring operations, input/output, display printing, reporting the current measurement value status, calling historical data, and evaluating system operation status on the computer at the monitoring management station or the computer at the monitoring management center station; it provides corresponding prompts based on program execution status or system working status; modifies system configuration, conducts system testing, and system maintenance, etc.

4) The system data communication function includes bidirectional data communication between the data acquisition device and the monitoring management station computer, as well as between the monitoring management station and the internal monitoring management center station and external network computers.

5) The system network security protection function ensures the secure operation of the network; it has multi-level user management functions, with multi-level user permissions and multi-level security Passwords, effectively managing the system's security.

6) The system has a self-checking function to facilitate timely maintenance.

7) The system has engineering safety monitoring management, online monitoring, offline analysis, database management, safety management, and other functions, including manual/automatic data collection, offline state analysis of measurement values, and graphical report production, which are basic contents of daily engineering safety management.

8) The system has a manual data input function, which allows for easy input of measurement points that have not implemented automated monitoring or data that has been manually supplemented due to system failures.

9) The system has an interface for communication with portable computers or reading instruments, using portable computers or reading instruments to collect monitoring data for manual supplementation, comparison, or to prevent data interruption.