| Using Low Voltage Power Line and Campus
Distribution Network to achieve real time monitoring and control
of lighting and other equipment in the campus, including:
1.Automatic connect or disconnect of
power of indoor illumination, street lighting or other equipment.
2.Automatic monitoring of on/ off status
of the target equipment.
Such that all target electrical appliances can be turned on or
off according to school regulation and hence improve energy
management of the campus.
Three control modes are available:
- Individual Control --- for control of each individual target
appliance:
- Group Control --- for a cluster of 2 to 1023 target
appliances
- Overall Control --- for simultaneous control of up to 1024
appliances under the same distribution circuit.
The Campus Lighting Monitoring and Control System consists of 3
main components, namely, Central Control Unit, Circuit Terminal
and Monitoring Unit as described as follows:
Central Control Unit --- The heart of the system,requirement:PC
supporting Windows98 or above,with Ethernet port and PSTN Modem.
The Central Control Unit can be located any where in the campus
and it can send instructions to the Circuit Terminal through PSTN
or Ethernet.
Circuit Terminal--- The intermediate control device of the
system, which receive instructions from the Central Control Unit
via Ethernet or PSTN Modem and monitor and control the target
appliances downstream of the Low Voltage Power Distribution
Network. The installation of the Circuit Terminal is based
on the Distribution Transformer. One Circuit Terminal is
required for each 3-phase 4-wire Distribution Transformer.
Monitoring Unit --- A remote device to be installed at each
appliance for the monitoring and control of that appliance
according to instructions from the Central Control Unit sent
through the Circuit Terminal.
Low Voltage Network --- Campus 3-phase 4 wire Power
Distribution Network, Voltage level£º110V/220V/380V¡£
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