USB Wireless Terminal Power Supply via Potential Detection
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Solution Overview
Problem
The high cost and large size of wireless network terminals due to the requirement for batteries with large capacity hinder miniaturization and integration, as existing power supply methods are inefficient and costly.
Innovation Solution
A power supplying method utilizing the USB interface to detect and determine the type of power supply device connected, allowing the wireless network terminal to operate in a predetermined communication mode supported by the power supply device, thereby eliminating the need for large batteries and enabling power supply through USB.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery with relatively large capacity is configured for a wireless network terminal, then the terminal can ensure normal working, but the cost of the terminal becomes relatively high and the size cannot be miniaturized
Solution Approach 1:
The USB interface is designed to serve multiple functions: it can detect power supply devices, identify device types through potential detection, communicate data, and provide power supply. This multi-functionality eliminates the need for separate battery components while ensuring reliable operation through USB power supply.
Solution Approach 2:
The invention extracts the power supply function from the traditional battery component and relocates it to the USB interface system. By detecting potential information on data lines and identifying power supply devices externally connected through USB, the terminal obtains power without requiring an internal large-capacity battery, thus reducing cost and enabling miniaturization.
2Device complexity
If power supply is implemented through USB interface with detection and mode control, then cost and size are reduced, but the terminal can only work in predetermined communication modes
Solution Approach 1:
The terminal dynamically adjusts its communication mode based on the detected power supply device type. When a power supply device with USB communication capability is detected, the terminal operates in predetermined communication modes that are compatible with USB power supply limitations. This dynamic adaptation ensures reliable operation within power constraints while maintaining versatility through mode switching.
Data Source
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AI summary
A power supplying method for a wireless network terminal and the wireless network terminal are provided. The method includes: detecting potential information of two power lines of a USB interface of a wireless network terminal; determining, according to the potential information of the two power lines, a type of a power supply device that is connected to the USB interface; and when the type of the power supply device is a power supply device having a communication capability, controlling the wireless network terminal to work in a predetermined communication mode, so as to implement power supply for the working wireless network terminal by using the power supply device. With provided technical solutions, a cost of the wireless network terminal can be reduced, and a battery with a relatively large size is not needed, thereby facilitating miniaturization and integration of the wireless network terminal.