Hybrid Solar Battery Access Controller for Wireless Installation
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Solution Overview
Problem
Access control systems face limitations due to battery life constraints in power devices, which affect the reliability and installation costs of secure area access control, particularly in environments requiring continuous operation without frequent battery replacements or invasive wiring installations.
Innovation Solution
A wireless access apparatus utilizing a combination of renewable and rechargeable power sources, with a controller that automatically switches between solar and rechargeable battery power, includes a recharging circuit, motion sensors, and a transceiver for secure area access control, enabling efficient power management and reduced installation complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a battery is used to power the access device, then the device can operate wirelessly, but the battery life is limited and requires frequent replacement
Solution Approach 1:
The solar panel performs preliminary action by continuously charging the battery during daylight hours, ensuring the battery is recharged before it depletes. This proactive energy replenishment extends operational duration between replacements and reduces installation costs by eliminating the need for frequent battery changes.
Solution Approach 2:
The system implements self-service through the solar panel automatically recharging the battery without human intervention. The hybrid power system monitors and manages itself, switching between solar and battery power sources as needed, thereby extending battery life and reducing maintenance costs.
2Reliability
If wires are attached to power the access device, then continuous power supply is achieved, but installation cost increases due to drilling and wiring
Solution Approach 1:
The invention extracts the power connection from the door structure by removing the need for wired connections. The hybrid wireless power system (solar panel + battery) is self-contained and attaches to the door without drilling or wiring, maintaining power supply continuity while dramatically reducing installation costs.
Solution Approach 2:
The system changes the power delivery parameters by using a high-capacity rechargeable battery supplemented by solar charging, rather than relying on continuous wired power. This parameter change in the power supply method achieves reliability comparable to wired systems while eliminating installation complexity.
3Duration of action of moving object
If a large battery is used to extend operation time, then battery life is extended, but the size of the door control unit increases
Solution Approach 1:
The power system is segmented into two separate components: a solar panel for energy generation and a battery for energy storage. This segmentation allows the battery to be optimized for capacity without being constrained by space, as the solar panel provides additional charging capacity externally. The controller unit remains compact while the overall system achieves extended operation time.
Solution Approach 2:
The solution moves the energy generation function to another dimension by adding the solar panel component that operates independently of the door control unit's internal space constraints. The battery can be positioned separately or in a distributed configuration, allowing extended operation time without increasing the controller unit's volume.
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 extends battery life, reduces installation costs, and ensures continuous operation by leveraging solar power and rechargeable batteries, while enhancing security through motion-sensing and remote authorization mechanisms.
Implementation Method 1
The first power source is a renewable power source such as a solar panel and the second power source is a rechargeable power source such as a rechargeable battery. The recharging circuit is adapted to recharge the rechargeable battery using power from the solar panel.
Implementation Method 2
an electromechanical transducer coupled to the controller for unlocking or locking an entrance into the secure area
Data Source
AI summary
A wireless access apparatus for controlling access into a secure area comprises a first power source and a second power source. A controller automatically switches between the first and second power source based at least on a calculated power level of the first and second power source. The controller is connected to either the first or the first and second power source based on the switching. The access apparatus includes a switch having a first position for connecting the first power source to the controller and a second position for connecting second power source to the controller and an electromechanical transducer coupled to the controller for unlocking or locking an entrance into the secure area. The controller determines access to the secure area using information received from an access card.