Authenticated Image Report System Using Server Time Synchronization
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Solution Overview
Problem
Conventional systems using portable terminals with cameras struggle to authenticate the capture time of images due to the reliance on device-specific clock times, which are not standardized, making it difficult to objectively verify the image pickup time.
Innovation Solution
A system that synchronizes the camera's time with a reference time from a Web server, allowing for the authentication of image information by converting the image capture time to a standardized reference time, enabling objective certification of image pickup times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If device-specific clock time is used for image timestamping, then the portable terminal can independently record capture time, but the time cannot be objectively verified as standard time
Solution Approach 1:
The patent introduces a server as an intermediary between the portable terminal and the time standard. The terminal obtains time from its own clock, but the server acts as a mediator to verify and authenticate this time against a standard time source, thereby resolving the contradiction between independent recording and objective verification
Solution Approach 2:
The system implements a feedback mechanism where the server compares the terminal's recorded time with standard time and provides authentication feedback. This feedback loop allows the terminal to maintain independent time recording while having its time stamps verified and authenticated by the server, thus achieving both ease of operation and reliability
2Reliability
If standardized reference time is used for image timestamping, then objective time certification is achieved, but synchronization with device clock is required
Solution Approach 1:
The server serves as an intermediary that handles the complexity of time synchronization. Instead of requiring the portable terminal to directly synchronize with multiple time sources, the terminal simply records its clock time and submits it to the server, which performs the synchronization and authentication, thereby achieving time standardization without significantly increasing device complexity
Solution Approach 2:
The system allows the portable terminal to self-record time stamps using its own clock, and the server performs the synchronization and authentication automatically. This self-service approach minimizes the operational complexity for the user while still achieving standardized time certification through automated server-side processing
Data Source
AI summary
Making a report with an authenticated image includes certifying an imaging time of an image captured by a portable terminal with a camera with an objective time to authenticate image information. A report making program for making a work report is downloaded in the portable terminal by a Web browser from a web server. Report data such as an image and information inputted according to the report making program is sent from the portable terminal to the web server. The web server transfers the report data to a document management program. The document management program automatically sorts the report data according to an information category of the report data and stores the report data. The imaging time of the image information included in the report data or the image information contained in the report made based on the report data is authenticated with a reference time of the web server.