Object Detection Device Sensor Activation Control
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Solution Overview
Problem
Existing object detection systems require continuous operation of sensors, leading to increased processing data and power consumption, as they need to constantly detect object shapes, even when not necessary.
Innovation Solution
An object detection device and method that uses a first sensor to extract features of an object within an irradiation area and activates a second sensor only when the feature variation falls below a predetermined threshold, allowing the second sensor to detect the object shape only when necessary, thereby conserving resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the second sensor is kept in continuous operation to detect object shape, then the detection reliability is improved, but the power consumption and processing data amount increase
Solution Approach 1:
The second sensor operates periodically rather than continuously. The control unit activates the second sensor only when the first sensor detects that an object has stopped moving (when movement variation falls below a threshold), and deactivates it when the object is moving. This periodic operation maintains detection reliability when needed while reducing power consumption during unnecessary operation.
2Measurement precision
If the second sensor is kept in continuous operation to detect object shape, then the detection precision is improved, but the amount of processing data increases
Solution Approach 1:
The second sensor is activated only during periods when object shape detection is actually needed (when the object stops), and deactivated during periods when the object is moving. This reduces the total volume of processing data while maintaining detection precision during the active periods when shape information is required.
Solution Approach 2:
The system extracts and processes only the necessary shape detection data when needed, rather than continuously processing all possible data. By using the first sensor to monitor movement and only activating the second sensor when movement variation is below a threshold, the system extracts only the relevant shape detection data, reducing overall processing load.
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
This approach enables the system to efficiently manage sensor operation, reducing unnecessary processing and power consumption by activating the shape detection sensor only when required, thus optimizing resource usage.
Implementation Method 1
a first sensor configured to detect a feature of a part of surface of an object by applying irradiation light
Implementation Method 2
a second sensor configured to detect an object shape
Data Source
AI summary
Provided is an object detection device capable of controlling to stop operation of a sensor that detects an object shape when operation of this sensor is not needed. An object detection device (1) includes a feature extraction unit (2) and a sensor activation unit (4). When an object passes an irradiation area of irradiation light from a first sensor configured to detect a feature of a part of a surface of an object by applying irradiation light, the feature extraction unit (2) extracts a feature of the object in the irradiation area. The sensor activation unit (4) activates a second sensor configured to detect an object shape when variation of the extracted feature falls below a predetermined first threshold.