Positioning Device Power Reduction via Signal Matching
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Solution Overview
Problem
Conventional positioning systems face challenges in accurately measuring positions while minimizing power consumption, particularly when identification information transmission devices are not the current targeting devices, leading to unnecessary power waste.
Innovation Solution
A positioning system comprising a positioning device and a communication device, where the positioning device controls wireless communication and distance measurement units, and only initiates distance measurement when the received radio signal's identification information matches the current search target and exceeds a predetermined intensity, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light emitter emits light at regular intervals to enable positioning, then positioning functionality is achieved, but power consumption increases unnecessarily when the device is not the current positioning target
Solution Approach 1:
The light emitter transitions from static periodic emission to dynamic emission controlled by reception intensity thresholds. The emission frequency and activation state adjust dynamically based on whether the device is identified as a positioning target, enabling the system to maintain positioning functionality only when needed while reducing power consumption during non-positioning periods
Solution Approach 2:
The communication device automatically determines whether to activate the light emitter based on received radio signal intensity and identification matching, without requiring external control commands. This self-service mechanism enables the device to independently optimize its power consumption by activating positioning functions only when it is the current positioning target
2Measurement precision
If distance measurement is continuously performed to ensure accurate positioning, then positioning accuracy is maintained, but power consumption and processing load increase
Solution Approach 1:
The distance measurement function operates periodically rather than continuously, being triggered only when the communication device receives a distance measurement start instruction. This periodic activation maintains positioning accuracy when needed while significantly reducing power consumption and processing load during non-measurement intervals
Solution Approach 2:
The system performs preliminary verification by checking reception intensity thresholds and identification matching before initiating distance measurement. This preliminary action ensures that distance measurement is only performed when the device is confirmed to be the current positioning target, avoiding unnecessary measurements and associated power consumption
Data Source
AI summary
The present technology relates to a positioning device, a communication device, and a positioning system that are designed to consume lower amounts of power in a more reliable manner. In a case where the identification information included in a received radio signal is the identification information about the current search target, and the reception intensity of the radio signal exceeds a predetermined value, the positioning device transmits a distance measurement start instruction to the communication device, and carries out measurement of the distance to the communication device. Upon receiving the distance measurement start instruction from the positioning device, the communication device performs measurement of the distance to the positioning device. The present technology can be applied to a positioning system.