K9 Vehicle HVAC Command Validation Against Malicious Temperature Changes
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Solution Overview
Problem
Remote control systems for climate control in police vehicles carrying canine officers are vulnerable to hacking, which can lead to extreme temperature settings harmful to the animal, as unauthorized commands can be sent through cellular networks, potentially causing heat exhaustion or hypothermia.
Innovation Solution
A vehicle controller that wirelessly communicates with a mobile device and a cloud service to validate HVAC commands, rejecting any that are outside safe temperature ranges or appear malicious, using independently sourced ambient temperature data to prevent hacking and ensure the K9 officer's safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If remote control capability is provided for HVAC temperature adjustment, then ease of operation is improved, but reliability deteriorates due to vulnerability to hacking
Solution Approach 1:
The patent introduces a cloud-based service as an intermediary between the mobile device and the vehicle controller. This intermediary validates temperature commands before they reach the vehicle, checking against safe operating ranges and environmental conditions. The cloud service acts as a trusted mediator that filters out malicious commands while allowing legitimate temperature adjustments, thus maintaining remote control functionality while improving security reliability.
2Adaptability or versatility
If unrestricted temperature commands are accepted, then adaptability is improved, but object-affected harmful factors increase due to extreme temperatures
Solution Approach 1:
The patent implements preliminary anti-action by proactively preventing harmful temperature commands before they can affect the K9 officer. The system establishes predetermined safe temperature ranges and validates all remote commands against these ranges before execution. Additionally, the system retrieves current environmental conditions and prevents commands that would create dangerous temperature differentials, thus blocking harmful actions before they occur rather than reacting after damage is done.
3Reliability
If command validation with cloud service is implemented, then reliability is improved, but loss of time increases due to validation delays
Solution Approach 1:
The patent applies preliminary action by pre-establishing safe temperature ranges and validation rules before remote control operations begin. The system pre-loads acceptable temperature thresholds and environmental parameters into the validation logic. This allows the cloud service to quickly validate commands by comparing them against pre-established criteria rather than performing complex analysis in real-time, thus maintaining high reliability while minimizing validation delays.
Data Source
AI summary
A wireless mobile device is used to control an HVAC temperature setpoint in a police vehicle containing a police dog. A wireless signal specifying a commanded temperature setting is checked to prevent malicious adjustments by a hacker. The commanded temperature setting is rejected when it is outside a predetermined range between an absolute minimum and an absolute maximum. When an outside ambient temperature is below a cold-day threshold, then the commanded temperature setting is rejected when it requests a temperature decrease. When the outside ambient temperature is above a hot-day threshold, then the commanded temperature setting is rejected when it requests a temperature increase. Otherwise, when the commanded temperature setting is not rejected as being outside the predetermined range, as being a decrease when below the cold-day threshold, or as being an increase when above the hot-day threshold, then the temperature setpoint is set to match the commanded setting.