Time synchronization system
The time synchronization system synchronizes time information across devices with and without GPS signals by matching location and video data, facilitating synchronized position and camera image presentation.
Patent Information
- Application Number
- JP2024031767
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-09-17
AI Technical Summary
Existing technologies face challenges in synchronizing time information between devices with and without GPS signals due to noise delays and the inability to synchronize time without GPS data.
A time synchronization system that synchronizes time information by matching it with location and video information using a simple configuration.
The system effectively synchronizes time across multiple devices, enabling the presentation of synchronized position and camera images, particularly for ski gliding data.
Smart Images

Figure 2025134094000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to time synchronization between camera image data of an image capture device and GPS reception data of a smartphone device. [Background technology]
[0002] GPS signals are widely used not only in the field of location information but also in the field of time information. In particular, they are used as synchronization signals in communication systems that require synchronization between geographically distant points. The time information in GPS signals can be used to synchronize devices that have GPS signals.
[0003] However, there were drawbacks such as delays due to noise in devices with GPS signals, and the inability to synchronize time in devices without GPS signals.
[0004] As a solution to this problem, the time synchronization system uses a simple configuration to synchronize the time by matching the time information extracted from the location information and the video information. [Prior art documents] [Patent documents]
[0005] [Patent Document 1] Japanese Patent Application Publication No. 2018-141715 [Non-patent literature]
[0006] [Non-Patent Document 1] Takeyasu Sakai, "Practical Programming for GPS," Tokyo Denki University Press, 2007 Summary of the Invention [Problem to be solved by the invention]
[0007] The problem to be solved is to present ski gliding data of a ski player by matching the time information of the location information containing GPS data with the time information of the video information regardless of whether it contains GPS data or not. [Means for solving the problem]
[0008] The present invention is a time synchronization system that can present ski gliding data of a ski player by matching the time information extracted from the position information and the video information with a simple configuration. [Effects of the Invention]
[0009] The time synchronization system of the present invention synchronizes the time between a plurality of different devices, and therefore can present skiing instruction information by synchronizing position information and camera images. [Brief explanation of the drawings]
[0010] [Figure 1] FIG. 1 is an explanatory diagram showing a method for implementing a time synchronization system (Example 1). DETAILED DESCRIPTION OF THE INVENTION
[0011] We have achieved time synchronization for different types of devices. [Example]
[0012] FIG. 1 shows an embodiment of the device of the present invention.
[0013] The synchronization information of device 1 having a GPS signal and device 2 having a camera image are made to match. [Industrial Applicability]
[0014] The number of devices for which synchronization information is to be matched can be three or more. [Explanation of symbols]
[0015] 1 equipment 1 2 equipment 2 3. Simultaneous intelligence at all times
Claims
1. An information processing device including a first device having GPS data and a second device having camera images, the information processing device comprises a means for generating time synchronization information for the GPS data and the camera image, and a means for generating a reference signal; and a means for presenting the time synchronization information.
2. the information processing device generates synchronization information from the time information of the reference signal in a format suitable for the wireless transmission environment; A time synchronization system characterized by:
Citation Information
Patent Citations
JP2007U
Time synchronization system and time synchronization system method
JP2018141715A