Sensor Packet Segmentation for Limited Data Length Identification
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Solution Overview
Problem
Existing sensor systems face limitations in identifying a sufficient number of sensors due to restricted data length per packet, which hinders effective energy management, especially when measuring and transmitting current waveform information from multiple electric equipment in a home setting.
Innovation Solution
A sensor system that alternates between measurement and transmission periods, transmitting source identification information, measurement data, and sensor-related information using single or multiple packets, allowing the receiving device to identify sensors and equipment even with limited packet data length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the data length of a packet is limited to achieve low power consumption, then energy consumption is reduced, but the number of identifiable sensors is reduced
Solution Approach 1:
The sensor-related information is divided into multiple packets and transmitted sequentially. Each packet contains a portion of the sensor identification information, allowing the complete identification data to be transmitted across multiple transmission periods while maintaining low power consumption in each individual transmission.
Solution Approach 2:
The sensor alternates between measurement periods and transmission periods at predetermined cycles. During transmission periods, sensor-related information is transmitted in multiple packets, enabling comprehensive sensor identification while maintaining the low power consumption regime established by the periodic measurement-transmission cycle.
2Loss of time
If the data length of a packet is limited, then transmission time is reduced, but the ability to identify sufficient number of electric equipments is compromised
Solution Approach 1:
Equipment identification information is segmented across multiple packets transmitted during successive transmission periods. This allows complete equipment identification data to be communicated without requiring excessively long single-packet transmission times, thus balancing transmission time constraints with information completeness.
Solution Approach 2:
Source identification information is transmitted in each packet to preliminarily identify the transmitting sensor, enabling the receiving device to begin processing and associating subsequent sensor-related information with the correct sensor even before complete identification data is received.
Data Source
AI summary
A sensor system in which it is possible to identify a sufficient number of sensors even in a situation where the data length of a packet is limited, as well as a sensor and a receiving device in the same, are provided. A sensor repeating a measurement period for performing measurement and a transmission period for performing transmission at predetermined cycles, includes: a measurement section (11) that outputs during the measurement period measurement information based on predetermined measurement; and a transmission section (12) that transmits during the transmission period, by using a single packet or a plurality of packets, source identification information for identifying a source of a packet, the measurement information, and sensor-related information for identifying the sensor and/or a measurement target equipment of this sensor.