Electric data transmission method of remote meter-reading system

Abstract

The invention discloses an electric data transmission method of a remote meter-reading system, which can avoid a concentrator from repeating uploading electric data to a master station in normal working and improve the operating efficiency of the remote meter-reading system. The electric data transmission method comprises the following steps: when the remote meter-reading system acquires new electric data, the master station in normal working receives the new electric data, then carries out updating working of electric data, and transmits the updated electric data to a backup master station for backup; before the master station in normal working receives the new electric data, the concentrator transmits the new electric data to a cache module for caching firstly; the receiving of the new electric data of the master station in normal working means that the master station in normal working reads electric data from the cache module to receive the new electric data; and when the master station in normal working transmits the updated electric data to the backup master station for backup, the cache module deletes the electric data transmitted from the concentrator and waits for receiving new electric data transmitted from the concentrator next time.

Description

technical field [0001] The invention relates to the technical field of remote meter reading systems, in particular to a power data transmission method of the remote meter reading system. Background technique [0002] At present, in order to ensure the safety and effectiveness of power data, the remote meter reading system generally adopts the structure of dual master stations, one of which is the normal working master station and the other is the backup master station. The purpose of setting up the backup master station is to It is to back up the power data, that is, the normal working master station will store the power data in the backup master station for backup every time the power data is updated. , the backup master station starts to work instead of the normal work master station, but the backup master station can only provide users or managers with the power data of the last backup and the power data before the last backup, that is, the old power data, and it cannot o...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to ensure the safety and effectiveness of power data, the remote meter reading system generally adopts the structure of dual master stations, one of which is the normal working master station and the other is the backup master station. The purpose of setting up the backup master station is to It is to back up the power data, that is, the normal working master station will store the power data in the backup master station for backup every time the power data is updated. , the backup master station starts to work instead of the normal work master station, but the backup master station can only provide users or managers with the power data of the last backup and the power data before the last backup, that is, the old power data, and it cannot obtain new ones. Power data, when the normal working master station returns to normal, the backup master station will return the control to the normal working master station

[0003] For the existing remote meter reading system, the power data transmission method is from the concentrator to the normal working master station, and the normal working master station to the backup master station. In this way, there are the following problems, when receiving the power from the concentrator In the data process or in the process of updating the power data, when the normal working master station restarts or power failure occurs, it will directly lead to the loss of the new and old power data of the normal working master station or errors in the new and old power data of the normal working master station. , although the backup master station will immediately replace the normal work master station to provide query services to users or management personnel, but when the normal work master station recovers, the normal work master station will require the backup master station to copy the old power data back to the normal work At the same time, the normal working master station will re-order the concentrator to re-upload the power data just transmitted, and the normal working master station will re-update the power data and transmit the updated circuit data to the backup master station for backup. Obviously, the transmission method of the above circuit data will cause the concentrator to repeatedly upload power data to the normal working master station, reducing the overall operating efficiency of the remote meter reading system