Evacuee Counting Device Using Terminal Authentication
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Solution Overview
Problem
Existing methods for calculating the number of evacuees in an evacuation shelter inaccurately include officials and volunteer staff, making it difficult for local governments to determine the actual number of evacuees.
Innovation Solution
A calculation device that transmits a response request to terminals in the shelter, receives signals from users, and calculates the number of terminals transmitting signals to accurately determine the number of evacuees by distinguishing between evacuees and non-evacuees through unique identification and authentication requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If position information of terminals is used to identify evacuees in the evacuation shelter, then the coverage of evacuee detection is improved, but the accuracy of evacuee count deteriorates because officials and volunteer staff are also included
Solution Approach 1:
The patent segments the population in the evacuation shelter into different categories (evacuees, officials, volunteer staff) by introducing authentication credentials. Terminals are divided into those with authentication credentials and those without, allowing the system to count only authenticated evacuees while excluding staff members, thus resolving the contradiction between detection coverage and count accuracy.
Solution Approach 2:
The patent introduces authentication credentials as an intermediary element between the terminal and the evacuee identification process. This intermediary mechanism allows the system to distinguish between genuine evacuees and staff members, enabling accurate counting while maintaining comprehensive detection coverage of all individuals present in the shelter.
2Measurement precision
If all terminals in the evacuation shelter are counted, then no evacuee is missed, but non-evacuee personnel are incorrectly included in the count
Solution Approach 1:
The patent implements preliminary authentication action before counting terminals. By requiring evacuees to authenticate with credentials before their terminals are counted, the system ensures that only genuine evacuees are included in the final count. This preliminary verification step maintains detection completeness while eliminating false positives from staff members.
3Ease of operation
If position-based identification is used, then the system is simple to operate, but it cannot distinguish between evacuees and staff members
Solution Approach 1:
The patent implements self-service authentication where evacuees themselves use their credentials to authenticate at their terminals. This self-service approach maintains operational simplicity while improving identification accuracy, as evacuees actively participate in the authentication process rather than requiring complex manual verification by staff.
Data Source
AI summary
In order to more accurately ascertain the number of evacuees, a calculation device according to the present invention comprises: a communication means which transmits a response request to terminals in an evacuation shelter and which receives, from the terminals that have responded to the response request, signals in accordance with operations by users of the terminals; and a calculation means which calculates, as the number of evacuees in the evacuation shelter, the number of the terminals which have transmitted the signals.