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Time updating method, device and mobile platform

A time update and time technology, applied to radio-controlled timers, instruments, etc., can solve the problems of hardware circuit volume, weight, complexity and high cost, and achieve the goals of saving space, ensuring accuracy and real-time performance, and reducing costs Effect

Active Publication Date: 2021-04-06
SZ DJI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When GNSS provides time to other devices, other devices usually require proprietary hardware circuits to calibrate and update the local time, and the size, weight, complexity and cost of the hardware circuits are relatively high

Method used

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  • Time updating method, device and mobile platform
  • Time updating method, device and mobile platform
  • Time updating method, device and mobile platform

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[003...

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PUM

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Abstract

An embodiment of the present invention provides a time updating method, device, and movable platform, the method comprising: acquiring at least two variations of a counter within a first preset time; performing averaging processing on the at least two variations ; Based on the result of the averaging process and the first preset time, determine the crystal oscillator frequency of the counter; update the local time based on the crystal oscillator frequency. In the embodiment of the present invention, no special hardware circuit is needed, and the complexity and cost of time update can be reduced while ensuring the accuracy of time update.

Description

technical field [0001] The present application relates to the technical field of time calibration, in particular to a time updating method, device and mobile platform. Background technique [0002] The Global Navigation Satellite System (GNSS for short) has been widely used all over the world. When the GNSS provides time to other devices, other devices usually require a proprietary hardware circuit to calibrate and update the local time, and the hardware circuit has high volume, weight, complexity and cost. Contents of the invention [0003] Embodiments of the present invention provide a time update method, device and mobile platform, which are used to reduce the complexity and cost of time update while ensuring the accuracy of time update. [0004] The first aspect of the embodiments of the present invention is to provide a time update method, including: [0005] Acquiring at least two variations of the counter within a first preset time; [0006] performing averaging ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G04R20/04G04R20/06G04R40/06
CPCG04R20/04G04R20/06G04R40/06
Inventor 张岩松彭夏鹏房玲江
Owner SZ DJI TECH CO LTD