Monitoring Apparatus Dynamic Recording Density Adjustment
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Solution Overview
Problem
Existing monitoring apparatuses face challenges in reducing data recording and transmission costs while effectively detecting abnormal behaviors, especially when the number of passengers is large, as they do not adequately account for positional imbalance which can lead to dangerous actions by groups.
Innovation Solution
A monitoring apparatus that includes a detection device, a recording device, a communication device, a determination unit, and an adjustment unit to calculate the number of people and positional imbalance, adjusting recording density and communication frequency based on these factors to prioritize high importance areas, ensuring high-quality recording and transmission for potentially dangerous situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the monitoring apparatus records and transmits images continuously regardless of passenger presence, then the detection accuracy of abnormal behaviors is improved, but the amount of data to be recorded and transmitted increases, leading to higher storage costs and communication costs
Solution Approach 1:
The system dynamically changes recording parameters (recording density and communication frequency) based on the calculated number of people and degree of positional imbalance. When the number of people is small or positional imbalance is high, the system increases recording density and communication frequency to maintain high detection accuracy, while reducing these parameters when conditions indicate lower risk, thus resolving the contradiction between detection accuracy and data volume
Solution Approach 2:
The monitoring apparatus transitions from static continuous recording to dynamic adaptive recording. The determination unit continuously calculates the number of people and positional imbalance, and the adjustment unit dynamically modifies recording and transmission parameters in real-time based on these calculations, allowing the system to optimize between detection accuracy and data reduction according to current conditions
2Quantity of substance
If the monitoring apparatus reduces recording density and communication frequency to decrease data volume, then storage costs and communication costs are reduced, but the detection capability of abnormal behaviors deteriorates
Solution Approach 1:
The system adjusts recording density and communication frequency parameters based on real-time analysis of passenger count and positional imbalance. By increasing these parameters when risk factors are present (few passengers or high positional imbalance) and decreasing them when conditions are safe, the system maintains detection capability while minimizing data volume
Solution Approach 2:
The determination unit performs preliminary analysis of the number of people and positional imbalance before adjusting recording and transmission parameters. This preliminary assessment allows the system to proactively optimize data volume while ensuring detection capability is maintained when abnormal behaviors are more likely to occur
3Device complexity
If the monitoring apparatus determines abnormal behaviors based only on the number of passengers, then the determination process is simple, but it fails to detect dangerous actions by groups when passengers are concentrated in one place
Solution Approach 1:
The system adds a new dimension to the determination process by calculating not only the number of people but also the degree of positional imbalance. This second dimension (spatial distribution) complements the first dimension (passenger count), enabling the system to detect group abnormal behaviors that would be missed by number-only analysis while maintaining reasonable process complexity
4Measurement precision
If the monitoring apparatus increases recording density and communication frequency for all situations, then the detection accuracy is maintained, but the storage costs and communication costs increase significantly
Solution Approach 1:
The system changes recording density and communication frequency parameters dynamically based on calculated risk indicators (number of people and positional imbalance). By adjusting these parameters rather than maintaining constant high values, the system preserves detection accuracy when needed while significantly reducing storage and communication costs during low-risk periods
Solution Approach 2:
The system applies partial action by increasing recording density and communication frequency only when necessary (when number of people is small or positional imbalance is high), rather than applying full action continuously. This selective approach maintains detection accuracy for critical situations while minimizing resource consumption during normal conditions
Data Source
AI summary
A monitoring apparatus includes: a monitoring camera to monitor a situation of a specific area; a recorder to record monitoring information output from the monitoring camera; a video transmission device to transmit the monitoring information recorded in the recorder to the outside; a determination unit to calculate, based on the monitoring information output from the monitoring camera, the number of people present in the specific area and a degree of positional imbalance of the people; and an adjustment unit to adjust, based on the number of people and the degree of positional imbalance calculated by the determination unit, at least one of a recording density to be used when the recorder records the monitoring information or a communication frequency to be used when the video transmission device transmits the monitoring information.