Elevator Service Request Filtering for Door Timing Control
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Solution Overview
Problem
Elevator systems face inefficiencies due to continuous elevator service requests from passengers entering the coverage area of a wireless signal device, leading to prolonged door opening and reduced operating efficiency, as well as passenger dissatisfaction.
Innovation Solution
A wireless signal device with a service control unit that disables responses to subsequent elevator service requests with the same call direction as a previously received request until the elevator car leaves the landing zone, using flag bits to manage these requests and ensure timely door closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wireless signal device continuously receives and responds to elevator service requests from multiple passengers, then passenger service coverage is improved, but elevator operating efficiency deteriorates due to prolonged door opening and repeated dispatching
Solution Approach 1:
The service control unit performs preliminary action by disabling the elevator controller from responding to subsequent service requests with the same call direction before the elevator car actually leaves the landing zone. This prevents multiple dispatching operations in advance, ensuring that only one elevator service request is processed per landing zone visit, thereby maintaining high operating efficiency while still covering multiple passengers' needs.
2Ease of operation
If the elevator controller responds to every received elevator service request command, then service responsiveness is improved, but door closure timing deteriorates causing prolonged door opening
Solution Approach 1:
The service control unit applies preliminary anti-action by proactively disabling the elevator controller's response capability to subsequent service requests with the same call direction. This counter-measure is taken before the problem of prolonged door opening can occur, preventing the elevator controller from initiating unnecessary door opening operations and ensuring timely door closure while maintaining service responsiveness for the first request.
3Adaptability or versatility
If the wireless signal device accepts multiple elevator service requests simultaneously, then passenger service capability is improved, but controller workload increases reducing system efficiency
Solution Approach 1:
The service control unit extracts and filters out redundant elevator service requests by disabling the elevator controller from responding to subsequent requests with the same call direction during the same landing zone visit. This separation function removes unnecessary duplicate processing from the controller, reducing its workload while maintaining the capability to serve multiple passengers through selective request acceptance.
Data Source
AI summary
A wireless signal device, a system and a method for an elevator service request are provided, which belong to the field of elevator technologies. The wireless signal device according to the present invention is mounted in a landing zone and receives an elevator service request command from a personal mobile terminal. The wireless signal device comprises a service control unit configured to, in an elevator dispatching service process arranged in response to a first elevator service request command received previously, disable the elevator controller from responding to a second elevator service request command received later for controlling the elevator dispatching service in the elevator dispatching service process if the second elevator service request command has the same elevator call direction as the first elevator service request command.