Traffic Monitoring Data Retention by Hot List Evidence Value
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Solution Overview
Problem
Existing traffic monitoring systems face challenges in managing retention periods of non-hit license plate records, which raise privacy concerns in local communities due to uniform retention policies, especially when dealing with diverse community policies and hot lists.
Innovation Solution
Implementing a traffic monitoring system with customizable retention periods based on the evidence value of hits on individual hot lists, allowing for dynamic adjustment and setting of retention periods at both the traffic sensor and system server levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a uniform retention period is applied to all read-records, then law enforcement can retrieve records for investigation, but privacy concerns arise in local communities due to retention of non-hit records
Solution Approach 1:
The patent segments the retention policy by creating different retention periods for hit records versus non-hit records. Hit records (matches on hot lists) are retained for a first retention period, while non-hit records are retained for a shorter second retention period. This segmentation allows law enforcement to access hit records for investigation while reducing privacy concerns by limiting the retention of non-hit records that do not pose security risks.
Solution Approach 2:
The patent applies local quality by allowing different retention periods to be assigned to different hot lists based on their specific evidence value and community policies. Each hot list can have customized retention parameters, enabling granular control over how long records matching specific criteria are retained. This ensures that retention policies are tailored to the specific needs and privacy concerns of different communities and law enforcement priorities.
2Object-affected harmful factors
If retention periods are customized based on individual hot list evidence value, then privacy concerns are addressed, but system complexity increases
Solution Approach 1:
The patent implements self-service by enabling law enforcement agencies and system operators to independently configure retention periods for different hot lists based on their own community policies and evidence value assessments. The system provides the capability and tools for users to set and adjust retention parameters without requiring complex external configuration or intervention, making the customized retention policy management straightforward and adaptable to local needs.
3Reliability
If all read-records are retained for extended periods, then comprehensive investigation data is available, but operational load on communications infrastructure increases
Solution Approach 1:
The patent applies dynamics by implementing time-based automatic deletion of read-records after their retention period expires. Records are dynamically managed with different retention durations based on their classification as hits or non-hits, and are automatically removed from the system after the appropriate period. This dynamic management reduces the cumulative data load on communications infrastructure while ensuring that investigation data is available for the necessary duration.
Data Source
AI summary
A traffic monitoring system includes a roadside traffic sensor unit and an off-site device remote from the traffic sensor unit. The roadside traffic sensor unit includes an imaging device that captures images of vehicles within a field-of-view of the imaging device, an image processing unit that generates a recognition record from the captured images of a vehicle, and a transceiver that transmits the recognition record. The off-site device includes a transceiver that receives the recognition record and a hot list identifying one or more vehicles-of-interest, a memory that stores the received recognition record for up to a retention period, and a processor that sets the retention period based on a comparison of the recognition record to the hot list identified vehicles-of-interest. The retention period can be variably set according to the severity of any “hits” to the hot list.