system composition

The overall system consists of three levels of equipment, two levels of channels, and a set of systems. Among them:

The third level equipment includes energy metering equipment, data acquisition equipment, and main station equipment

The secondary channel refers to the data channel (downstream channel) between the data acquisition equipment and the meter, and the data channel (upstream channel) between the data acquisition equipment and the main station system

A system refers to a low-voltage centralized power reading system

major function

● Automatic meter reading: No need for manual meter reading at home, no disturbance to residents, improving the safety and privacy of residential buildings in the park

Archive management: maintenance and management of basic parameters of measuring points, equipment parameters, concentrator status, collection schemes, operation logs, etc

Statistical analysis: Classify, analyze, and view electricity meter data through tables and graphs

Report management: Store and compile user electricity data to produce reports that can be printed

Remote control: The system provides the ability to remotely stop and send power according to actual needs. When a user is detected to be in arrears or illegally using electricity, the operator issues a power outage command to cut off the user's electricity. When the power transmission requirements are met, the operator sends a closing command to close the user load switch and provide power to the user

● It has the function of sending short message data, which facilitates users to timely understand the electricity consumption situation

Technical Proposal

When the meter is installed centrally, RS485 channel should be used for data collection between the collector and the meter

When the meter is installed in a distributed manner, it is advisable to use power line carrier (PLC) or wireless communication for data acquisition

When the meter is installed in a centralized and distributed manner, a mixed networking mode with multiple channels can be used