Navigation Device Point-to-Point Speed Trap Warning System
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Solution Overview
Problem
Existing navigation devices do not provide adequate warnings for point-to-point speed traps, failing to inform users when they enter or exit these controlled areas, which can result in speeding fines and safety issues.
Innovation Solution
A navigation device with a processor and memory unit that includes a speed trap database with both detection points for point-to-point speed traps, providing distinct warnings when approaching or passing the second detection point, and offering speeding warnings if the vehicle exceeds the threshold speed within the controlled area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a navigation device stores only single detection points for speed traps, then the device complexity is reduced, but the information accuracy about point-to-point speed traps deteriorates
Solution Approach 1:
The speed trap detection system is segmented into multiple detection points (first detection point and second detection point) that collectively define a point-to-point speed trap zone. This segmentation allows the system to provide comprehensive coverage of the speed trap area while maintaining manageable database complexity through structured organization of detection points.
Solution Approach 2:
The system transitions from single-point detection to multi-point detection by adding a spatial dimension to speed trap representation. By storing both a first detection point and a second detection point, the system creates a linear zone definition that accurately represents the extent of point-to-point speed traps, improving location information accuracy without excessive complexity increase.
2Ease of operation
If the navigation device provides only a single warning at the detection point, then the ease of operation is improved, but the reliability of speed trap warning deteriorates
Solution Approach 1:
The system performs preliminary actions by providing multiple staged warnings: a first warning when approaching the first detection point, and a second warning when approaching or passing the second detection point. This preliminary action sequence ensures drivers receive timely, progressive alerts about speed trap zones, improving warning reliability while maintaining operational simplicity through automated multi-stage notification.
3Use of energy by moving object
If the navigation device monitors only single detection points, then the use of energy is reduced, but the loss of information about speed trap zones deteriorates
Solution Approach 1:
The system merges information from multiple detection points (first and second detection points) to create comprehensive point-to-point speed trap zone data. By combining the positional information from both detection points, the system achieves complete zone coverage and prevents information loss about the full extent of speed traps, while energy consumption remains manageable through efficient use of existing GPS positioning capabilities.
Data Source
AI summary
At least one embodiment of the invention relates to a navigation device for providing warnings when a detection point of a speed trap is approached, including a processor unit arranged to communicate with memory unit and to receive positional information from a positioning device. The memory unit may include a speed trap database, including at least one detection point of a location of a speed trap. The navigation device of at least one embodiment is arranged to provide a warning when one of the at least one detection point is approached. The memory unit is further arranged to include at least a further detection point associated with at least one of the stored detection points, both relating to a same point to point speed trap. In at least one embodiment, the navigation device is arranged to provide a warning when the further detection point is approached or has been passed.