| 摘要 |
Method of sending the value of a status variable between a sending device (100; 201) and a receiving device (201, 100) as part of a standardized binary coded radio message within the scope of a distributed message system, which message comprises fields for a certain predetermined information to be sent with the message as well as a buffer field, comprising the steps of: causing the sending device to assemble, calculate a checksum for, digital store and periodically transmit a certain predetermined type of message in the form of a radio signal (120; 220) which is readable for a receiving device, and causing the receiving device to receive and interpret the thus transmitted message. The invention is characterized in that the status variable is not related to the predetermined information, in that the sending device, before the checksum is calculated, inserts the value of the status variable in binary coded format into the message in a buffer field, that according to the messaging standard is not intended to transmit information, and in that the receiving device interprets the binary value as the value of the status variable. |
