Receiverless Positioning for Remote Elevator Call Validation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Elevator systems face issues with unintended or nuisance elevator call requests due to remote user device interactions, leading to delays for legitimate users, and existing methods relying on GPS or Bluetooth beacons are unreliable and energy-intensive.
Innovation Solution
A receiverless positioning method that determines user location based on the initial request location without GPS or Bluetooth data, comparing subsequent requests to a threshold distance and time to validate or deny them, thereby reducing nuisance calls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS or Bluetooth beacon data are used to determine user location for elevator requests, then location accuracy is improved, but energy consumption increases and reliability decreases
Solution Approach 1:
The patent extracts the location determination function from GPS and Bluetooth beacon systems, removing the dependency on these energy-intensive external positioning systems. Instead, it uses the elevator system's own request processing infrastructure to infer user location, thereby eliminating the need for continuous GPS/Bluetooth operations and reducing energy consumption while maintaining location accuracy.
Solution Approach 2:
The elevator system performs self-service location determination by using its own request data and timestamp information to calculate user location. The system serves its own positioning needs without relying on external GPS or Bluetooth infrastructure, making the system self-sufficient and energy-efficient.
2Measurement precision
If GPS or Bluetooth beacon data are used to determine user location for elevator requests, then location accuracy is improved, but system reliability worsens
Solution Approach 1:
The patent removes the unreliable GPS and Bluetooth beacon components from the location determination process. By extracting these external dependencies, the system avoids their inherent reliability issues such as signal loss, interference, and availability problems, while maintaining accurate location tracking through internal system data.
Solution Approach 2:
The system determines location using its own internal request processing data and timestamp information, making it self-sufficient and independent of external positioning systems. This self-service approach eliminates reliability concerns associated with GPS and Bluetooth beacons, as the system relies on its own operational data which is always available.
3Ease of operation
If remote elevator requests are allowed without location validation, then user convenience is improved, but unintended or nuisance calls increase
Solution Approach 1:
The patent applies preliminary validation by calculating user location and comparing it with the requested elevator location before processing the request. This preliminary check prevents unintended or nuisance calls from being processed, while still allowing convenient remote requests from legitimate users. The validation occurs in advance, maintaining user convenience for valid requests while blocking harmful ones.
Solution Approach 2:
The system provides feedback by validating requests against calculated user location and timestamp data. This feedback mechanism determines whether a request should be processed or rejected, preventing nuisance calls while maintaining convenience for legitimate users. The feedback loop ensures that only geographically and temporally valid requests are honored.
4Object-generated harmful factors
If location validation with threshold distance and time comparison is implemented, then nuisance calls are reduced, but device complexity increases
Solution Approach 1:
The patent makes the existing request processing system multi-functional by adding location validation, distance comparison, and timestamp verification capabilities to the same infrastructure that handles request routing. This universal approach prevents nuisance calls without requiring separate dedicated validation hardware or complex external positioning systems, thereby limiting the increase in device complexity.
Data Source
AI summary
Provided are embodiments of a method for operating a receiverless device positioning. The method includes receiving a first request corresponding to a first location, registering data associated with the first request, and receiving a second request at a second location, the first location is different than the second location. The method also includes comparing the first and second location, and time between the first request and the second request, and allowing the second request based at least in part on the comparison. Also provided are embodiments of a system configured to perform receiverless positioning.