A low-power consumption control method of a GPS module

By setting a rate threshold and sampling period, combined with gyroscope monitoring, the sleep state of the GPS module is dynamically adjusted, solving the problem of high power consumption of the GPS module and significantly extending the device's battery life while ensuring real-time positioning and accuracy.

CN120993444BActive Publication Date: 2026-08-04ZHEJIANG LIERDA INTERNET OF THINGS TECH
2 Cites 0 Cited by

Patent Information

Application Number
CN202511197991.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-08-04
Estimated Expiration
2045-08-26

AI Technical Summary

Technical Problem

Existing GPS modules consume a lot of power during continuous operation, which shortens the device's battery life. Furthermore, traditional low-power solutions are difficult to meet real-time and accuracy requirements and are prone to falsely triggering power consumption control due to signal drift.

Method used

By setting the rate threshold, sampling period, and state switching hysteresis time, combined with the gyroscope angular velocity threshold, the sampling period and sleep state of the GPS module are dynamically adjusted. By utilizing multi-sensor collaboration and intelligent algorithms to optimize control parameters, a balance between power consumption and positioning performance is achieved.

Benefits of technology

Significantly reduces the average power consumption of the GPS module, extends the device's battery life, ensures positioning accuracy and real-time performance, and adapts to the power consumption requirements of different scenarios.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application provides a low-power consumption control method of a GPS module. Through data fusion of a gyroscope and GPS, precise perception of the motion state of the device is realized, and in combination with dynamic frequency modulation technology and hardware-level power control, the system power consumption is significantly reduced under the premise of ensuring positioning accuracy and real-time performance. The application detects the angular velocity change of the device in real time through the gyroscope, determines the device in a motion, low-speed movement or static state in combination with GPS position information. The GPS sampling period is dynamically adjusted according to the state division result. The sliding window algorithm is adopted to smooth the rate fluctuation, the multi-threshold hysteresis mechanism is combined to avoid state misjudgment, and a mathematical optimization model is constructed to iteratively optimize the control parameters, so that the balance between power consumption and performance is realized. Through hardware-level power control, zero power consumption in the static state is realized. In the long-endurance demand scenarios such as Internet of Things devices, wearable devices, field animal research, etc., the average power consumption of the GPS module can be greatly reduced while maintaining high positioning accuracy.
Need to check novelty before this filing date? Find Prior Art