| 摘要 |
A method of communicating between a plurality of devices in a controller area network is disclosed. The method includes authorizing a first device to transmit messages with a first identifier over the network, the first device transmitting a first message with the first identifier and a first value, and the devices which receive the first message assuming the first value as their respective values. The method may be used with a number of devices and a listening device in a system. At startup of the system, any device which saved its value in a non-volatile memory will become the master of the identifier and transmit a message with the value over the network. Devices which did not save their values in non-volatile memories will transmit requests for the data value. If they do not receive any response, they will become the master and transmit messages with their data. Devices which receive the message will assume the value as theirs. If the value at a device is changed, that device will become master and transmit a message with its value.
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