Data Collection Communication Timing for Mixed Device Periods
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Solution Overview
Problem
In data collection systems with multiple lower connection devices, the existing communication protocols lead to inefficient data transmission due to mismatched communication periods, resulting in repetitive transmission of the same data to the upper connection device, which deteriorates communication efficiency.
Innovation Solution
A communication device that acquires data from lower connection devices and sets a transmission period equal to or longer than the longest communication period among the lower connection devices, thereby reducing unnecessary data transmissions and optimizing communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the transmission period is set to match the shortest communication period among multiple lower connection devices, then data from the fastest device can be transmitted without delay, but data from other devices with longer communication periods is transmitted repeatedly, deteriorating communication efficiency
Solution Approach 1:
The transmission period is made dynamically adjustable based on the actual communication periods of connected lower connection devices. The upper connection device can optimize the transmission period for each device individually, rather than using a fixed period that must accommodate the shortest communication period. This dynamic adjustment eliminates unnecessary repetitive transmissions while maintaining timely data transmission.
2Productivity
If the upper connection device determines data update status for each communication device, then the transmission period can be optimized for each device, but the system complexity increases due to needing to track and manage multiple different transmission periods
Solution Approach 1:
The transmission period parameter is changed from a fixed value to a dynamically adjustable value based on the communication period of each lower connection device. By changing this key parameter, the system achieves optimized communication efficiency without requiring complex management mechanisms, as the transmission period automatically adapts to each device's characteristics.
Data Source
AI summary
A communication device and a data collection system that, when lower connection devices are connected to a communication device, improve efficiency of communication between the communication device and an upper connection device. There is an acquirer that acquires data from the lower connection devices, and a transmission setter that sets a transmission period, which is a time interval in which the data acquired by the acquirer from the lower connection devices is compiled and the compiled data is transmitted to the upper connection device as transmission data, to be equal to or longer than a communication period that is the longest among communication periods of the lower connection devices. Further, there is a transmitter that transmits the transmission data to the upper connection device with the transmission period that is set by the transmission setter.