Vehicle Sensor System Dynamic Rate Adjustment Thermal Load
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Solution Overview
Problem
The challenge is to maintain the information acquisition capability of a vehicle-mounted sensor system while minimizing its thermal load, as increased information acquisition rates can lead to decreased performance due to thermal issues or operational abnormalities.
Innovation Solution
A sensor system comprising a first and second sensor, each acquiring information in overlapping areas, with a controller that adjusts their information acquisition rates. When one sensor's rate falls below a threshold, the controller increases the other sensor's rate, compensating for decreased capability in the overlapped area by adjusting parameters such as light sources or frame rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the information acquisition rate of sensors is increased to improve detection capability, then the information acquisition capability is improved, but the thermal load (calorific value) of the sensor system increases
Solution Approach 1:
The patent dynamically adjusts the information acquisition rate of sensors based on real-time thermal conditions and detection requirements. The control unit monitors the calorific value and modifies acquisition rates adaptively, allowing the system to operate at high performance when thermal conditions permit while preventing thermal overload through dynamic rate reduction when necessary.
Solution Approach 2:
The patent changes operational parameters (information acquisition rates) of sensors based on thermal conditions. By adjusting acquisition rates as a variable parameter rather than maintaining a fixed high rate, the system optimizes the balance between detection capability and thermal management, resolving the contradiction between productivity and temperature control.
2Temperature
If the information acquisition rate of one sensor is reduced to suppress thermal load, then the calorific value is suppressed, but the information acquisition capability decreases
Solution Approach 1:
The patent combines multiple sensors with overlapping detection areas to compensate for reduced acquisition rates. When one sensor operates at a lower acquisition rate to manage thermal load, other sensors in the system maintain or increase their acquisition rates, and their data is merged through data fusion techniques to maintain overall information acquisition capability despite individual sensor rate reductions.
Solution Approach 2:
The patent employs multiple sensors that can perform similar detection functions in overlapping areas. This multi-functionality allows the system to distribute the detection burden across multiple sensors, enabling one sensor to reduce its acquisition rate for thermal management while others compensate, maintaining overall system capability without sacrificing detection coverage.
3Temperature
If protection functions are activated to suppress thermal load, then the calorific value is controlled, but the information acquisition rate falls below required levels
Solution Approach 1:
The patent implements a feedback control mechanism where the control unit continuously monitors the calorific value of the sensor system and adjusts information acquisition rates based on this feedback. When thermal load approaches problematic levels, the system receives feedback and automatically reduces acquisition rates of appropriate sensors, maintaining thermal control while minimizing impact on detection capability through intelligent, feedback-driven adjustments.
Solution Approach 2:
The protection function operates dynamically rather than statically, continuously adapting acquisition rates based on real-time thermal conditions. The system transitions between different operational states (high acquisition rate when cool, reduced rate when hot) based on current thermal status, allowing optimal performance when possible while providing thermal protection when necessary.
Data Source
AI summary
A sensor system mounted on a vehicle includes: a first sensor configured to acquire information on a first area outside the vehicle; a second sensor configured to acquire information on a second area that partially overlaps with the first area outside the vehicle; and a controller configured to change an information acquisition rate of the first sensor and an information acquisition rate of the second sensor, in which when the information acquisition rate of one of the first sensor and the second sensor falls below a predetermined value, the controller increases the information acquisition rate of the other sensor to be higher than the predetermined value.