Communication Device Data Transmission Power Optimization
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Solution Overview
Problem
Existing communication devices face challenges in reducing power consumption during data transmission, particularly in outdoor activities where devices like wearable terminals and smartphones need to continuously record and transmit various types of data with varying priorities.
Innovation Solution
A communication device is designed with a first communication unit for high-priority data transmission using wireless LAN techniques and a second communication unit for low-power near field communication, allowing data to be selectively transmitted based on priority and type, optimizing power usage by using Bluetooth Low Energy for reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first communication unit (wireless LAN) is used for data transmission, then data transmission speed and reliability are improved, but power consumption increases
Solution Approach 1:
The communication device segments data into multiple types (first type and second type) and assigns different transmission methods to each type. The first communication unit (wireless LAN) transmits only first type data requiring high reliability, while the second communication unit (low-power communication) transmits second type data, thus resolving the contradiction by applying different communication methods to different data segments based on their reliability requirements.
2Use of energy by moving object
If the second communication unit (low-power communication) is used for data transmission, then power consumption is reduced, but data transmission speed and reliability deteriorate
Solution Approach 1:
The communication device applies local quality by transmitting different types of data with different quality requirements through different communication channels. First type data (requiring high reliability) is transmitted through the first communication unit, while second type data (tolerant of lower reliability) is transmitted through the second communication unit, thus achieving optimal power consumption while maintaining adequate reliability for each data type.
3Reliability
If all types of data are transmitted using the first communication unit, then data transmission completeness is ensured, but overall power consumption increases
Solution Approach 1:
The communication device segments the data transmission task by dividing data into first type data (transmitted via first communication unit) and second type data (transmitted via second communication unit). This segmentation ensures that only critical data consumes high power transmission, while non-critical data uses low-power transmission, thus reducing overall power consumption while maintaining transmission completeness.
4Device complexity
If data transmission priority is not differentiated, then transmission process simplicity is maintained, but power consumption optimization is reduced
Solution Approach 1:
The communication device performs preliminary action by classifying and prioritizing data before transmission. The processor determines the type and priority of each data packet in advance, routing first type data to the first communication unit and second type data to the second communication unit. This preliminary classification enables power consumption optimization without significantly increasing transmission process complexity.
Data Source
AI summary
A communication device transmits a plurality of types of data to an external device, and the communication device includes: a wireless communication unit 15 configured to communicate with the external device; a near field communication unit 16 configured to communicate with the external device and consuming less power; and a CPU 11 configured to set priority to a plurality of types of data and let the near field communication unit 16 with reduced power consumption transmit the data having predetermined priority to the external device.