| 摘要 |
A smart miniature circuit breaker (SMCB) can be used to monitor electricity consumption at a circuit level in new and existing domestic consumer units or industrial distribution boards. The SMCB comprises: a miniature circuit breaker (MCB) 2; an instantaneous current measurement device, wireless transceiver 6 and hard wired communication means 7, that can be used in any combination to transmit data and receive acknowledgement and configuration data; and a store to buffer data. The SMCB reads the usage of electricity in the circuit, at a user defined rate, and reports it to a local coordinator 4 which incorporates local data storage, processing capability and means for remote connectivity via an IP gateway such as Wifi, GSM or Ethernet network. The wireless transceiver can operate in a licence free communication spectrum at 433 MHz, 868MHz or 2.4GHz and the circuit current can be measured and communicated at a frequency set by the coordinator unit. |
