Presence Detection Using Digital Timestamp Signatures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods fail to accurately record and verify participant attendance at outdoor events without spatial boundaries, relying on estimates or unreliable eyewitness accounts, making it difficult to prove participation over time.
Innovation Solution
A presence detection method using capture software installed on both a reference device and an electronic device, which generates and verifies digital timestamp signatures for location and atmospheric parameters, enabling secure communication and storage of participation confirmations on a server, allowing for reliable detection and proof of participation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If estimation methods are used to count participants at outdoor events, then the complexity of the system is reduced, but the reliability and accuracy of attendance recording deteriorates
Solution Approach 1:
The patent replaces manual estimation methods with an automated electronic detection system. Portable electronic devices with sensors automatically detect and record participant presence at outdoor events, eliminating the need for human observers and manual counting while significantly improving reliability and accuracy of attendance data.
Solution Approach 2:
The system enables self-service attendance recording where participants' own portable electronic devices automatically perform detection and recording functions. The devices autonomously capture location data, atmospheric parameters, and generate digital timestamps without requiring external intervention, thereby reducing system complexity while maintaining high reliability.
2Reliability
If digital timestamp signatures and direct communication technology coupling are implemented, then the reliability and security of presence detection is improved, but the device complexity and difficulty of operation increases
Solution Approach 1:
The patent combines multiple functions into the portable electronic devices themselves: sensing capabilities for location and atmospheric parameters, digital timestamp generation, cryptographic signature creation, and direct communication technology coupling are all integrated into a single device. This merging reduces overall system complexity while maintaining high reliability and security.
Solution Approach 2:
The patent introduces a server as an intermediary that handles complex cryptographic operations and data verification. The server receives signed presence data from portable devices, verifies digital timestamps and signatures, and stores authenticated attendance records. This intermediary approach allows portable devices to remain relatively simple while ensuring high reliability through centralized verification.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Attendance recording procedure (100) for the secure recording of the presence of a portable electronic device (106) at the location of a reference device (104), comprising the steps of: defining at least one recording requirement (114); entering a reference code (122) via the reference device (104); entering a participant code (134) via the electronic device (106); generating a first digital timestamp signature (128) of the reference code (122) and/or a second digital timestamp signature (140) of the participant code (134); verifying the signed reference code (130) and the signed participant code (142) and comparing the recording requirement (114) with the reference code (122) and the participant code (134); generating a confirmation of attendance (146, 148) if the recording requirement is met.