Remote Control Auto Theft Prevention System
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Solution Overview
Problem
Existing automobile theft prevention methods, such as key-operated ignition switches and remote control systems, are vulnerable to 'hot wiring' and other unauthorized access techniques, as they can be easily bypassed by thieves.
Innovation Solution
A remote control system comprising a transmitter section, preferably a fob, that broadcasts an 'unlock' signal to a receiver section connected between the automobile battery and starter solenoid or distributor, preventing unauthorized activation by making key components inaccessible to hot wiring, and allowing frequency changes to evade interception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a key-operated ignition switch is used to prevent unauthorized starting, then the vehicle security is improved, but the system can be easily bypassed by hot wiring
Solution Approach 1:
The patent introduces a remote control system with transmitter and receiver as an intermediary between the user and the vehicle's ignition system. The receiver is positioned in an inaccessible location within the vehicle, and communicates with a remote transmitter via radio frequency signals. This intermediary system prevents direct access to critical components, thereby eliminating the hot wiring vulnerability while maintaining security.
Solution Approach 2:
The patent replaces the mechanical key-operated ignition switch with an electronic remote control system. Instead of using a physical key that can be manipulated or bypassed, the system uses radio frequency communication between a handheld transmitter and a receiver unit. This substitution eliminates the mechanical vulnerability to hot wiring while providing equivalent or enhanced security.
2Reliability
If remote control means are used to prevent unauthorized use, then the security is improved, but the device can be defeated by opening the hood and attaching jumper cables
Solution Approach 1:
The patent positions the receiver unit in a location that is inaccessible from the exterior of the vehicle, such as within the dashboard or console area. The receiver acts as an intermediary that must be accessed through the vehicle's interior compartments, preventing thieves from simply opening the hood and attaching jumper cables to bypass the system. The radio frequency communication further intermediates the control signal, adding another layer of protection.
3Reliability
If the receiver section is connected between the battery and starter solenoid or distributor, then the control over engine starting is improved, but the connection points must be made inaccessible to hot wiring
Solution Approach 1:
The patent uses radio frequency communication as an intermediary to transmit the start signal from the remote transmitter to the receiver. This eliminates the need for accessible physical connection points that could be targeted by hot wiring. The receiver, once installed in an inaccessible location, communicates wirelessly with the ignition system, maintaining control while removing accessibility vulnerabilities.
Solution Approach 2:
The patent transitions from physical space accessibility to radio frequency space for signal transmission. By moving the control interface from the physical domain (where thieves could access connection points) to the electromagnetic domain (radio frequency signals), the system maintains control capability while eliminating the accessibility problem. The receiver processes these electromagnetic signals and executes the start command.
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
Effectively prevents unauthorized starting and operation of vehicles by ensuring that only authorized individuals can initiate the engine, using a secure communication link between the transmitter and receiver sections, thus enhancing vehicle security.
Implementation Method 1
The transmitter section is preferably designed as a fob which conveniently is transported on the person of the operator. The radio signal between the transmitter and receiver is typically a sine wave whose frequency is arbitrarily selected by the operator
Implementation Method 2
The EIM comprises a generator coupled to the engine shaft that develops voltage pulses by any one of Hall effect, photo voltaic effect, and electromagnetic effect
Implementation Method 3
Each time the first circuit is interrupted, the collapse of the magnetic field in the step-up transformer generates a strong pulse in the second circuit
Data Source
AI summary
A system for preventing unauthorized operation of an automobile and enabling an authorized operator to operate the auto comprising a transmitter system located with said operator enabling the operator to broadcast a start signal received by a receiver system mounted on the auto, The auto engine is coupled to a starter motor and starts in reaction to receipt of the start signal.