Camera Wireless Power Transmitter for Access Control
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Solution Overview
Problem
Existing camera and access control systems require wired connections for power and data transmission, limiting their flexibility and increasing installation complexity, especially in scenarios where wireless operation and integrated surveillance and access control are needed.
Innovation Solution
A combined video surveillance and access control system that includes a camera device with a wireless power transmitter to charge battery-powered access control devices and sensing devices, enabling wireless data communication and power transmission, thus eliminating the need for wired connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired connections are used for power and data transmission, then system reliability is improved, but installation complexity and flexibility deteriorate
Solution Approach 1:
The patent replaces mechanical wired connections with wireless electromagnetic field-based power and data transmission systems. The camera device uses wireless power transmission to charge external sensing devices and wireless communication for data exchange, eliminating the need for physical cable connections while maintaining system functionality.
Solution Approach 2:
The camera device is designed to perform multiple functions: it acts as both a surveillance camera and a wireless power station. The wireless power transmitter can charge multiple different types of external devices (sensing devices, access control devices, mobile devices), making the system universally applicable to various power needs without requiring separate charging infrastructure.
2Stability of the object's composition
If wired connections are used for power transmission, then power supply stability is improved, but flexibility and ease of operation deteriorate
Solution Approach 1:
The patent substitutes wired power transmission with wireless power transmission using electromagnetic fields. The camera device transmits power wirelessly to external sensing devices through a wireless power transmitter, allowing devices to be positioned flexibly without being constrained by cable routing while maintaining stable power delivery through controlled electromagnetic coupling.
Solution Approach 2:
The wireless power transmission system allows dynamic positioning of external devices within the power transmission range. Devices can be moved or repositioned freely without requiring cable disconnection or reconnection, enabling flexible installation and operation while the system dynamically adjusts power transmission based on device position and power needs.
3Ease of operation
If wireless power transmission is implemented, then flexibility and ease of installation are improved, but device complexity increases
Solution Approach 1:
The patent combines the wireless power transmission functionality with the existing camera device structure. The wireless power transmitter is integrated into the camera housing, sharing the same power supply and control systems. This merging approach allows the camera to provide wireless charging capabilities without requiring a completely separate wireless power station, thereby reducing overall system complexity.
Solution Approach 2:
The camera device is designed as a multi-functional unit that simultaneously performs surveillance imaging and wireless power transmission. By making the camera universal enough to handle both functions, the patent avoids the need for separate dedicated devices, simplifying installation while providing wireless power capabilities.
4Ease of operation
If wireless communication is used for data transmission, then ease of operation is improved, but data transmission reliability may deteriorate
Solution Approach 1:
The patent replaces physical wired data connections with wireless electromagnetic communication. The camera device and external sensing devices exchange data wirelessly through transceivers, eliminating the need for data cables while maintaining reliable communication through error correction protocols and signal processing techniques inherent in wireless communication systems.
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 solution allows for a fully wireless operation of access control and sensing devices, enhancing flexibility and simplifying installations by ensuring that both power and data can be transmitted wirelessly, thereby improving the integration of surveillance and access control systems.
Implementation Method 1
a wireless power transmitter operable for transmitting power wirelessly to the wireless power receiver of the access control device
Data Source
AI summary
A camera device includes a camera module that captures a scene corresponding to a field of view of the camera module. A wireless power transmitter of the camera devices transmits wireless power to a battery-powered external sensing device. A transceiver is further operable for receiving from the external sensing device sensed data. A network module transmits the image and sensed data to an external networked device. A power supply receives power over a wired connection and supplies power to the camera module, transceiver, networking module and wireless transmitter. The external sensing device may be an access control device that includes a sensor for sensing the presence of a machine readable toke and reading an identifier of the physical token. The access control device further includes a lock controller for selectively locking and unlocking a physical lock.