Tire Condition Detection Device Using Signal-Dependent Encryption
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Solution Overview
Problem
Existing tire condition detecting devices are vulnerable to identification information leakage when receiving imitated unmodulated trigger signals, as these signals are easy to replicate, potentially leading to unauthorized access and data security breaches.
Innovation Solution
The tire condition detecting device employs a controlling section that encrypts data when receiving unmodulated trigger signals and transmits non-encrypted data when receiving modulated signals, using identification information as an encryption key, and adjusts output power based on signal type to prevent data leakage, ensuring secure transmission of identification information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If unmodulated trigger signals are used, then ease of operation is improved, but security is worsened due to easy imitation
Solution Approach 1:
The patent applies different quality treatments to different types of trigger signals. Unmodulated trigger signals are processed with encryption to protect against imitation, while modulated trigger signals are processed without encryption since they are already difficult to imitate. This local differentiation resolves the contradiction by maintaining ease of operation for unmodulated signals while securing them through selective encryption.
Solution Approach 2:
The patent changes the parameter of data encryption based on the trigger signal type. When an unmodulated trigger signal is received, the controlling section encrypts the data before transmission. When a modulated trigger signal is received, the data is transmitted without encryption. This parameter change resolves the contradiction by adapting the security level to the specific signal characteristics.
2Ease of operation
If data is transmitted without encryption, then ease of operation is improved, but information security is worsened
Solution Approach 1:
The patent dynamically changes the encryption parameter based on the trigger signal type. For unmodulated trigger signals, encryption is applied to prevent information leakage from imitation. For modulated trigger signals, encryption is omitted to maintain ease of operation. This selective parameter change resolves the contradiction between ease of operation and information security.
Data Source
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AI summary
A transmitter includes a condition detecting section, which detects a condition of a tire, a memory section, which stores identification information, a transmitting section, which transmits a data signal, a trigger receiving section, which receives a trigger signal transmitted from a trigger device, and a controlling section. When the trigger receiving section receives the trigger signal, the controlling section generates data corresponding to the trigger signal and causes the transmitting section to transmit the data signal, which includes the generated data. The controlling section generates encrypted data when the trigger receiving section receives a trigger signal of unmodulated waves. The controlling section generates non-encrypted data that includes the identification information when the trigger receiving section receives a trigger signal of modulated waves.