Wireless Memory Tag Battery Activation Logic
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Solution Overview
Problem
Existing wireless personal information carrier devices face challenges with limited memory capacity, unreliable data transfer due to environmental interference, and short battery life, especially in emergency situations where frequent data access is needed.
Innovation Solution
A wireless memory tag device that uses a coded trigger signal to activate and de-activate, employing a multi-frequency antenna for secure and efficient RF data transfer, with a battery life of up to 10 years and the ability to scavenge RF energy for charging, allowing for high-capacity data storage and secure, long-range communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the device operates as a completely passive RFID tag to avoid battery usage, then the battery life is extended indefinitely, but the memory capacity is limited and transfer rates are slow
Solution Approach 1:
The device dynamically switches between passive and active states. During normal periods, it operates passively to conserve battery. During emergency data transfers, it activates the battery to enable high-capacity wireless data transmission, then returns to passive mode. This dynamic state change allows the system to achieve both long battery life and high memory capacity.
Solution Approach 2:
The device employs periodic activation of the battery rather than continuous operation. The battery is activated only during brief emergency data transfer periods and remains inactive during normal intervals. This periodic action pattern allows the battery to last for years while still providing sufficient power for multiple emergency data transfers.
2Duration of action of stationary object
If the device uses inductive power transfer to avoid battery, then battery life is extended, but the package size becomes too large due to large induction coils
Solution Approach 1:
The invention extracts and removes the large induction coils from the device entirely. Instead of using inductive power transfer, the device uses a small battery combined with wireless data transfer technology. This extraction of the bulky inductive components allows the device to maintain a compact, dog-tag-sized form factor while still achieving long battery life through selective battery activation.
3Ease of operation
If the device uses free space optical link for data transfer, then wireless communication is achieved, but data transfer becomes unreliable in environments with mud, sand or other obscuring materials
Solution Approach 1:
The invention replaces the optical link system with a radio frequency-based wireless data transfer system. Instead of using light that can be blocked by mud, sand, or other materials, the device uses RF signals that can penetrate these environmental obstacles. This substitution of the transmission medium maintains wireless operation while significantly improving reliability in harsh environments.
4Speed
If the battery is kept connected to power the device continuously, then data access is fast and reliable, but the battery charge is depleted quickly
Solution Approach 1:
The device employs periodic activation of the battery rather than continuous operation. The battery is activated only during brief emergency data transfer periods and remains inactive during normal intervals. This periodic action pattern allows the battery to last for years while still providing sufficient power for multiple emergency data transfers.
Solution Approach 2:
The device enters a pre-programmed low-power state during which it cannot be accessed. This preliminary inaccessibility is intentional and designed to conserve battery power. When emergency data transfer is needed, the battery is activated to provide fast and reliable data access, then returns to the low-power state.
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 provides a reliable, high-capacity wireless memory device with extended battery life and secure data transfer, suitable for emergency situations, with the ability to handle multiple emergencies without frequent recharging, and adaptable for various applications including medical and military use.
Implementation Method 1
the wireless memory tag has a multi-frequency antenna in order to receive only a specific ID-signal with the appropriate combination of RF-frequencies
Implementation Method 2
a battery that retains its charge over very long periods of time
Implementation Method 3
high-capacity wireless data transfer technology
Data Source
AI summary
An information carrier in a preferred embodiment is worn like a dog-tag and carries data such as medical information. The tag operates wirelessly, communicating with a nearby reader which interrogates the tag with a selected combination of RF signal frequencies. Extremely long term battery usage is achieved by connecting the battery in the tag only when the proper combination of RF signals, each at least at a minimum threshold power level, is received at the tag to produce a trigger voltage in activation logic to close a solid state switch. After a sequence of communications between the reader and the tag is then completed to transfer selected data from the memory, the battery is again disconnected to preserve battery energy for very long periods of time. The battery may be slowly recharged by ambient energy using a scavenging antenna array.