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At the on-site monitoring station, data acquisition, power management and communication module are integrated. Their work is conducted by the central control module. The structure of the on-site monitoring station is shown in Figure 2.
Sensors at the construction site are connected to a corresponding data acquisition unit. Data acquisition commands are sent to the sensors by the data acquisition unit, the latest values are returned to the data acquisition unit from the sensors.
All the data acquisition units are connected to the data and power bus. They receive commands from the bus and send acquired data back to the bus.
The central control module is connected to the data and bus also. It sends data acquisition commands to the data acquisition units and receives the acquired data via the bus. The power management module which control the power supply of the power bus is also connected to the central control module. Its work is conducted by the central control module. Thus, data acquisition and power supply of the on-site monitoring system are both controlled by the central control module. |
IEEE/ICACT20210171 Slide.06
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