Dynamic Location-Based Group Formation Using Variable Distance Parameters
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Solution Overview
Problem
Existing methods for dynamically creating location-based talkgroups for incident response often rely on static distance parameters, which can incorrectly include or exclude responders based on their mobility, leading to inefficient and ineffective group formations.
Innovation Solution
A method and apparatus that use variable distance parameters based on the mode of transport associated with each responder, dynamically forming groups by determining the current location and maximum response distance of potential responders relative to a defined location, ensuring only timely responders are included.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static distance parameters are used to form location-based groups, then the group formation process is simple, but responders with different mobility capabilities are incorrectly included or excluded
Solution Approach 1:
The patent applies dynamics by transitioning from static distance parameters to dynamic distance parameters that adapt based on each responder's mode of transport. The system determines mobility characteristics (pedestrian, vehicle, etc.) and assigns different distance thresholds accordingly, allowing the group formation criteria to change dynamically based on individual responder capabilities rather than using a fixed uniform distance for all responders.
Solution Approach 2:
The patent applies local quality by customizing the distance parameter for each responder based on their specific mode of transport. Instead of applying a global uniform distance threshold, the system assigns localised distance parameters tailored to each responder's mobility characteristics, ensuring that the inclusion criteria are appropriate for their specific capabilities.
2Reliability
If variable distance parameters based on mode of transport are used, then responder inclusion accuracy is improved, but the group formation process becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-determining and storing mobility characteristics for each responder before the incident occurs. The system maintains a database of responder profiles that include their modes of transport and associated distance parameters, so that when an incident happens, the appropriate parameters are already available and can be quickly applied without complex real-time analysis.
Solution Approach 2:
The patent applies intermediary by introducing a centralized system that acts as a mediator between responders and the group formation process. This intermediary system automatically determines current locations, retrieves appropriate distance parameters based on stored mobility characteristics, and performs the inclusion/exclusion decisions, thereby simplifying the overall process despite the increased sophistication of the criteria.
3Ease of operation
If uniform distance threshold is applied to all responders, then the system is easy to operate, but responders capable of timely response are excluded while those unable to respond are included
Solution Approach 1:
The patent applies parameter changes by modifying the distance threshold parameter based on the responder's mode of transport. Instead of using a single uniform distance value, the system changes the parameter dynamically according to mobility characteristics (e.g., larger distance for vehicle responders, smaller distance for pedestrian responders), thereby optimizing the balance between ease of operation and response efficiency.
Data Source
AI summary
Dynamic group formation in a wireless radio communication system including a plurality of subscriber units is implemented using variable distance parameters. First, a request for a new group call relative to a defined location is received at a controller from a requesting device. A current location of each of a plurality of potential responding second subscriber units is determined. A maximum response distance associated with each of the second subscriber units is determined as a function of a stored mode of transport associated with each of the second subscriber units. A group is formed including second subscriber units having current locations that fall within the maximum response distance relative to the defined location associated with that second subscriber unit. Audio or data transmitted by the requesting device is then caused to be provided to the second subscriber units in the formed group.