Elevator Car Control Using Probe Request Destination Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing elevator systems require passenger input to select a destination floor, which can lead to delays, incorrect selections, and hygiene concerns, especially for non-human passengers.
Innovation Solution
An elevator system that uses a wireless network access point to detect a probe request from a passenger's portable device, matching it with stored profiles to determine an anticipated destination floor without requiring passenger input, using profile data to control the elevator car's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a floor-selection panel with numbered buttons is provided inside the elevator car, then passengers can select their destination floor, but this requires manual input which can lead to delays and incorrect selections
Solution Approach 1:
The system uses the portable device's existing probe request functionality to automatically identify the passenger and determine their destination floor without requiring manual input. The portable device serves itself by transmitting probe requests that the access point detects and processes to automatically select the destination.
Solution Approach 2:
The system performs preliminary identification of the passenger and determination of the destination floor before the elevator car even arrives at the floor. By detecting probe requests and matching profiles in advance, the system prepares the destination selection before manual input would be needed.
2Adaptability or versatility
If manual floor selection is required, then the system can accommodate any destination, but this increases the risk of input errors and hygiene concerns
Solution Approach 1:
The portable device automatically transmits probe requests that contain identification data, and the system automatically matches this data with stored profiles to determine the destination floor. This eliminates manual input errors while maintaining the ability to select any destination associated with the passenger's profile.
3Ease of operation
If physical contact with floor-selection panels is required, then the system can receive input from any passenger, but this creates hygiene concerns especially for non-human passengers
Solution Approach 1:
The system replaces the mechanical floor-selection panel with a wireless communication system. The access point detects probe requests transmitted wirelessly by the portable device, eliminating the need for physical contact between the passenger and the selection interface.
Solution Approach 2:
The portable device automatically transmits probe requests without requiring the passenger to physically interact with any elevator controls. The system processes these automatic transmissions to identify the passenger and determine the destination, making the system accessible to non-human passengers.
4Measurement precision
If the system waits for passenger input to determine destination, then it can confirm the correct floor, but this increases waiting time and reduces productivity
Solution Approach 1:
The system performs preliminary detection of probe requests and matching of passenger profiles before the elevator car arrives at the floor or before the passenger would need to input their destination. This advance preparation eliminates waiting time while maintaining accurate destination determination through profile matching.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An elevator system (201, 501, 601) with an elevator car (203; 203A; 203B) comprises a controller (207; 207A; 207B) for the elevator car (203; 203A; 203B), at least one processor (211; 211A, 211B, 609), and a wireless network access point (215; 215A; 215B; 607). According to a method of controlling the elevator car (203; 203A; 203B), a portable device (231; 521, 523) transmits a probe request (233; 517, 519), wherein the portable device (231; 521, 523) is carried by a passenger (229; 511, 513) of the elevator system (201, 501, 601). The probe request (233; 517, 519) contains at least a first probe request data set (235), wherein the first probe request data set (235) is of a first type. The wireless network access point (215; 215A; 215B; 607) detects the probe request (233; 517, 519). The at least one processor (211; 211A, 211B, 609) accesses data storage (213; 213A, 213B, 611). In the data storage (213; 213A, 213B, 611) there is stored a plurality of passenger profiles (217; 217A, 217B, 613). Each passenger profile (241) of the plurality of passenger profiles (217; 217A, 217B, 613) contains a first profile data set (243) of the first type and a second profile data set (247) representing at least one destination floor. The at least one processor (211; 211A, 211B, 609) identifies a matching passenger profile (249; 525; 527; 615; 617) of the plurality of passenger profiles (217; 217A, 217B, 613), wherein the first profile data set (243) of the matching passenger profile (249; 525; 527; 615; 617) matches the first probe request data set (235). The at least one processor (211; 211A, 211B, 609) determines an anticipated destination floor based on the second profile data set (247) of the matching passenger profile (249; 525; 527; 615; 617). The at least one processor (211; 211A, 211B, 609) instructs the controller (207; 207A; 207B) to move the elevator car (203; 203A; 203B) to the anticipated destination floor.