Integrated Motion-Image Security Device with Wireless Power Control
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Solution Overview
Problem
Conventional security monitoring systems face challenges in providing maximum coverage while minimizing privacy invasion, aesthetic unpleasantness, and power consumption issues, particularly with small, portable cameras and motion detectors that rely on external power sources.
Innovation Solution
An integrated security device combining a motion detector and camera with wireless communication using multiple frequencies and power-saving techniques, such as reducing listening times and implementing a power control circuit to extend battery life, allowing for bi-directional communication and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cameras are constantly triggered to record activity, then security coverage is improved, but privacy invasion increases
Solution Approach 1:
The system uses motion-activated recording where the camera only records when motion is detected by the sensor, rather than continuous recording. This periodic action triggered by external stimuli maintains security coverage while significantly reducing privacy invasion during normal activities.
Solution Approach 2:
A motion sensor acts as an intermediary between the camera and the recording function. The sensor detects motion and triggers the camera only when needed, mediating between constant security monitoring requirements and privacy protection needs.
2Ease of operation
If small portable detectors and cameras are used, then installation flexibility is improved, but power consumption increases
Solution Approach 1:
The system enters sleep mode during periods of no activity and only activates when motion is detected. This periodic operation pattern significantly reduces average power consumption while maintaining the flexibility of small portable devices.
Solution Approach 2:
The device uses passive infrared sensing to detect motion and automatically triggers recording only when needed, eliminating the need for continuous power consumption. The system serves itself by autonomously managing power states based on environmental conditions.
3Reliability
If multiple devices are distributed throughout the facility, then monitoring coverage is improved, but device complexity increases
Solution Approach 1:
The system combines multiple functions (motion detection, infrared sensing, camera recording, and wireless communication) into a single integrated device. This merging reduces the number of separate components needed while maintaining comprehensive monitoring coverage.
Solution Approach 2:
Each device is designed as a multi-functional unit that can detect motion, sense infrared radiation, capture images, and communicate wirelessly. This universal design allows fewer devices to provide the same coverage as multiple specialized devices would require.
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 solution enhances security monitoring coverage with reduced power consumption, minimizing privacy invasions and aesthetic concerns, enabling extended operation without frequent recharging, and reducing the complexity of installations.
Implementation Method 1
a motion detector and camera positioned to detect motion and capture images, respectively, within a common field of view
Data Source
AI summary
Security systems and methods are implemented using a variety of devices and methods. According to one such implementation, a security system uses a controller to communicate with security-monitoring devices and has an integrated image-capture device comprising a circuit board structure having an angle-setting support article, a circuit board with a nonadjustable surface, and data-communicating electrical conductors. A camera is secured to the nonadjustable surface and is directed at a first angle relative to the nonadjustable surface. A motion detector is secured to the nonadjustable surface and is directed at a second angle relative to the nonadjustable surface of the circuit board. The support article sets the first angle relative to the second angle for capturing both images and motion in a target area. A data-communication circuit communicates data from the camera and the motion detector via the data-communicating electrical conductors and wirelessly communicates the data to the controller.