Wearable Pedestrian Radar Speed Detection Harness
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Solution Overview
Problem
Current road safety apparel does not effectively alert pedestrians to approaching speeding vehicles and lacks a mechanism for recording and reporting such incidents to authorities.
Innovation Solution
A wearable pedestrian safety radar system with a harness incorporating a portable radar detection and display device that detects vehicle speed, alerts pedestrians through vibration and sound, and automatically records images of speeding vehicles, with the ability to transmit data to law enforcement or reporting programs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional road safety apparel is used, then pedestrians have basic visibility protection, but they lack real-time detection and alerting capabilities for approaching speeding vehicles
Solution Approach 1:
The patent combines radar detection, visual display, haptic feedback, and audio alert systems into a single wearable harness unit. The radar gun, display screen, vibration motor, and speaker are integrated into one cohesive device that can be worn by pedestrians, eliminating the need for multiple separate safety devices and providing comprehensive protection through unified operation.
Solution Approach 2:
The wearable harness performs multiple functions simultaneously: it detects vehicle speed via radar, displays speed information visually on an LED screen, provides haptic feedback through vibration motors, and emits audio warnings through speakers. This multi-functional integration allows a single device to address various aspects of pedestrian safety that would otherwise require separate systems.
2Reliability
If no recording mechanism is provided, then the system remains simple, but incidents cannot be documented or reported to authorities
Solution Approach 1:
The system captures and stores incident data immediately when speeding vehicles are detected, including speed measurements, timestamps, and location information. This preliminary recording action ensures that evidence is preserved at the moment of the incident, enabling subsequent reporting to authorities without requiring additional equipment or manual documentation processes.
3Reliability
If real-time speed detection and alerting are implemented, then pedestrians receive timely warnings, but the device complexity and power consumption increase
Solution Approach 1:
The radar system operates by emitting periodic radio waves to detect vehicle speed through the Doppler effect, rather than continuous transmission. The display and alert systems are activated periodically based on detection results, updating visual and audio outputs only when relevant information is obtained, thereby reducing overall power consumption while maintaining real-time monitoring capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances pedestrian safety by providing real-time alerts and data recording of speeding vehicles, enabling pedestrians to take action and allowing for reporting to authorities, thereby promoting safer road conditions.
Implementation Method 1
The speed detection and display board has a radar system
Implementation Method 2
the radar system detects the speed of the on-coming motor vehicle
Implementation Method 3
The infrared proximity sensor detects the distance between the motor vehicle and the pedestrian
Implementation Method 4
at least one solar panel
Data Source
AI summary
A wearable pedestrian safety radar system including a harness with a pocket and a portable radar speed detection and display device to be worn on the front and back of the harness by a pedestrian while on a roadway. The device includes a radar system, LED lights, a microcontroller, a proximity sensor, a camera, a strobe light, an audible alert unit and a vibration unit. The device detects a speed of an on-coming motor vehicle. If the vehicle is exceeding a predetermined speed limit, the speed is displayed on the device. If the vehicle does not slow down below the speed limit within a distance detected by the proximity sensor, the camera records the vehicle while the strobe light blinks to warn the driver of the recording. The audible alert unit and vibration unit alert the pedestrian. The system may be used to relay data to a law enforcement agency.