Integrated Speed and Imagery Capture System
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Solution Overview
Problem
Current systems face challenges in synchronizing still and motion imagery with speed measurements, leading to delays and cost issues in enforcing traffic laws, as existing technology struggles to capture clear images of vehicles and operators at distances where speed violations can be accurately measured.
Innovation Solution
Integration of a still image capture device, motion imagery device, and speed detection device into a single system using a laser rangefinder to determine speed and capture imagery simultaneously, with a queuing mechanism to synchronize data and reduce processing time through a sliding sampling window, enabling precise and cost-effective enforcement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a laser rangefinder is used to measure speed at long ranges, then speed measurement precision is improved, but image capture quality deteriorates
Solution Approach 1:
The system divides the measurement and capture process into two distinct functional segments: a laser rangefinder handles speed measurement at long ranges, while a separate camera system captures images when the vehicle is at closer ranges. This segmentation allows each component to operate in its optimal performance zone without compromising overall system effectiveness.
Solution Approach 2:
The system performs preliminary speed measurement and monitoring at long ranges using the laser rangefinder before the vehicle enters the camera's optimal capture range. When the vehicle approaches within the predetermined distance threshold, the system is triggered to capture the image, ensuring both speed violation detection and clear visual evidence are obtained.
2Measurement precision
If separate devices are used for speed detection and image capture, then measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The system merges the laser rangefinder, camera, processor, and synchronization mechanisms into an integrated handheld device. This consolidation allows multiple functional components to work together as a unified system, reducing the need for separate standalone devices while maintaining the accuracy benefits of specialized components.
Solution Approach 2:
The handheld device is designed with multi-functionality, serving as both a speed measurement instrument and an image capture device. The single device performs multiple functions (laser ranging, speed calculation, image capture, and data synchronization) that would traditionally require separate specialized equipment, thereby simplifying the overall system architecture.
3Productivity
If processing time is reduced for real-time enforcement, then productivity is improved, but measurement reliability deteriorates
Solution Approach 1:
The system continuously performs preliminary speed measurements and range calculations in the background before a violation is confirmed. When the vehicle enters the capture zone and a speed violation is detected, the image capture and evidence compilation happen rapidly because the preliminary data is already processed and ready, minimizing the critical processing time while maintaining measurement reliability.
Solution Approach 2:
The system implements a streamlined processing pathway that rushes through the critical evidence collection phase. Once a speed violation is detected within the capture range, the system immediately captures the image and finalizes the evidence package without unnecessary delays, ensuring both high productivity and reliable measurement through efficient data processing.
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
The system provides simultaneous and synchronized speed and image data, reducing latency and costs, allowing for accurate and legible capture of vehicle and operator images, even at long ranges, thereby enhancing the effectiveness of traffic enforcement.
Implementation Method 1
Laser rangefinders, through a series of pulsed laser bursts, can determine the speed of a vehicle at a range previously unobtainable using RADAR technology
Implementation Method 2
By measuring the changing distance of the target over that time, as well as the changing roll, pitch and orientation of the laser over that time, the target's speed can be determined
Data Source
AI summary
Devices capable of capturing still and motion imagery are integrated with an accurate distance and speed measuring apparatus. By measuring the changing distance of the target over that time, a target's speed can be determined. At substantially the same time as the target's speed is determined, imagery of the target is captured in both a still and moving format. Using a queuing mechanism for both distance and imagery data along with time stamps associated with each, a target's image, both in motion and still, can be integrated with its speed. In situations in which a still image is unavailable, a target's speed can be associated with a portion of a continuous stream of motion imagery to a point where a positive identification can be captured with a still image.