Single-Coil Car Key Programmer for Multi-Protocol Key Activation
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Solution Overview
Problem
Conventional automobile key programmers are bulky and costly due to the need for multiple coils to apply different resonant voltages for activating various types of automobile keys.
Innovation Solution
An automobile key programmer that includes an activation coil, changeover switches, and modulation circuits (infrared, amplitude shift keying, and frequency shift keying) to provide different resonant voltages using a single coil, allowing activation of different key types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple coils are configured to apply different resonant voltages for activating various key types, then the ability to activate different key types is improved, but the device size and production costs increase
Solution Approach 1:
The patent applies universality by making a single activation coil capable of performing multiple functions - activating different types of automobile keys (infrared modulated, amplitude shift keying, frequency shift keying) by switching between different resonant voltages. The coil is designed to work with multiple modulation circuits, allowing one component to replace what would traditionally require multiple specialized coils
Solution Approach 2:
The patent applies dynamics by making the resonant voltage applied to the activation coil changeable through switching between different modulation circuits. The system dynamically adjusts the voltage characteristics (frequency, amplitude modulation) based on the type of key being activated, allowing a single static coil to adapt to different key types through dynamic electrical parameter changes
2Adaptability or versatility
If multiple coils are configured to apply different resonant voltages for activating various key types, then the ability to activate different key types is improved, but production costs increase
Solution Approach 1:
The patent reduces production costs by designing a universal activation coil that can activate all key types, eliminating the need to manufacture and stock multiple specialized coils. The single coil design simplifies the supply chain, reduces inventory requirements, and lowers manufacturing complexity while maintaining full compatibility with different key types through software-controlled voltage switching
3Volume of moving object
If a single coil is used with changeover switches and modulation circuits to provide different resonant voltages, then device compactness is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the control system into separate modulation circuits (infrared, amplitude shift keying, frequency shift keying) that can be independently designed and controlled. Each circuit handles a specific modulation type, and the changeover switch selectively connects the appropriate segment to the activation coil, making the overall complex system manageable through modular organization
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 enables compact design, reduced production costs, and the ability to activate various types of keys using a single coil, addressing the bulkiness and cost issues of conventional systems.
Implementation Method 1
an activation coil configured to apply different resonant voltages to activate different types of automobile keys
Implementation Method 2
apply different resonant voltages to different coils to activate the key
Implementation Method 3
an infrared modulation circuit connected to the second connection terminal and configured to provide an infrared modulated resonant signal
Implementation Method 4
an amplitude shift keying modulation circuit connected to the fifth connection terminal and configured to provide a resonant signal and a resonant voltage modulated with amplitude shift keying
Implementation Method 5
a frequency shift keying modulation circuit connected to the sixth connection terminal and configured to provide a resonant signal and a resonant voltage modulated by frequency shift keying
Data Source
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AI summary
This disclosure relates to the technical field of automobiles and discloses an automobile key programmer applied to an automobile diagnostic instrument, wherein the automobile key programmer includes an activation coil, a first changeover switch, a second changeover switch, an infrared modulation circuit, an amplitude shift keying modulation circuit, and a frequency shift keying modulation circuit; when the first changeover switch is not powered on, the infrared modulation circuit provides a resonant voltage for the activation coil; when the first changeover switch is powered on and the second changeover switch is not powered on, the amplitude shift keying modulation circuit provides a resonant voltage for the activation coil; when both the first changeover switch and the second changeover switch are powered on, the frequency shift keying modulation circuit provides a resonant voltage for the activation coil; only one coil is required in the automobile key programmer to change voltages.