Gate Apparatus with Dual Person Detection for Safe Passage Timing
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Solution Overview
Problem
When multiple individuals pass through a gate apparatus, there is a need to notify the next person of the appropriate timing to enter, ensuring they do not attempt to enter while the previous person is still passing through.
Innovation Solution
A gate apparatus equipped with a first light emission unit, a first person detection unit, and a second person detection unit, controlled by a unit that changes the light emission state based on detection results, indicating when it is safe for the next person to enter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a notification system is provided to inform the next person when to enter, then the safety and efficiency of successive passage is improved, but the device complexity increases due to additional detection units and control logic
Solution Approach 1:
The gate apparatus is segmented into multiple functional units: a first person detection unit at the entrance, a second person detection unit at the exit, and a light emission unit for notification. This segmentation allows each unit to perform a specific function independently, improving reliability while keeping the overall system manageable through modular design
Solution Approach 2:
The system implements feedback by using detection results from both the first and second person detection units to control the light emission unit. The light emission state is dynamically adjusted based on real-time detection data, creating a closed-loop control system that ensures safety while guiding successive passage
2Measurement precision
If multiple detection units and control logic are added to manage successive passage, then the notification accuracy is improved, but the manufacturing cost increases
Solution Approach 1:
The person detection units serve multiple functions: they detect the presence of persons, determine their position (entrance or exit side), and provide input signals for both notification control and passage management. This multi-functionality reduces the need for separate specialized components, thereby lowering manufacturing costs while maintaining high detection accuracy
Solution Approach 2:
The light emission unit acts as an intermediary between the detection units and the persons passing through. It translates complex detection data into simple, intuitive visual signals that clearly indicate when it is safe to enter, achieving high notification accuracy without requiring complex direct communication systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively notifies the next person of the timing to enter the gate apparatus, preventing simultaneous passage and enhancing safety and efficiency.
Implementation Method 1
a first light emission unit; the control unit changes a light emission state of the first light emission unit from a first state to a second state
Implementation Method 2
a first person detection unit; changes a light emission state of the first light emission unit from a first state to a second state with detection of a person by the first person detection unit
Implementation Method 3
a second person detection unit positioned on an exit side of the first person detection unit; changes a light emission state of the first light emission unit from the second state to the first state with detection of a person by the second person detection unit
Data Source
AI summary
A gate apparatus (10) includes a first light emission unit (110), a first person detection unit (120), a second person detection unit (122), and a control unit (140). Each of the first person detection unit (120) and the second person detection unit (122) detects existence of a person. The second person detection unit (122) is positioned on the exit side of the first person detection unit (120). Then, the control unit (140) changes the light emission state of the first light emission unit (110) from a first state to a second state different from the first state with detection of a person by the first person detection unit (120) as at least one condition. Further, the control unit (140) sets the light emission state of the first light emission unit (110) to the first state with detection of a person by the second person detection unit (122) as at least one condition.