In-Vehicle Protection System Using Tiered Processing Units
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Solution Overview
Problem
The increasing complexity of in-vehicle control systems to support navigation and anti-theft functions leads to higher production costs and power consumption, necessitating a cost-effective and power-efficient solution.
Innovation Solution
An in-vehicle protection system utilizing multiple processing units with varying computing power and a GNSS module to reduce power consumption, coupled with a communication module for improved anti-theft performance by sending vehicle positioning information through a communication network when abnormal conditions are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If multiple processing units with different computing powers are used to reduce power consumption, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The system divides processing units into different tiers based on computing power requirements. A first processing unit with higher computing power handles complex tasks, while a second processing unit with lower computing power handles simpler tasks, allowing the system to segment workloads according to actual needs and reduce overall power consumption.
Solution Approach 2:
The controller dynamically switches between the first and second processing units based on the operational state and task requirements. When the vehicle is in motion, the first processing unit is activated; when parked or in low-activity states, the system switches to the second processing unit, creating a dynamic adaptation to varying computational demands.
2Reliability
If GNSS module and communication module are integrated for anti-theft function, then anti-theft performance is improved, but production cost increases
Solution Approach 1:
The system integrates multiple functions into existing components. The GNSS module serves both navigation and anti-theft tracking purposes, while the communication module handles both data transmission and alarm signaling. This multi-functionality approach allows the system to achieve improved anti-theft performance without adding dedicated separate components for each function, thereby controlling production costs.
3Reliability
If communication module sends positioning information through communication network, then anti-theft capability is improved, but energy consumption increases
Solution Approach 1:
The communication module transmits positioning information periodically rather than continuously. The system sends location data at predetermined time intervals or when specific triggering events occur (such as unauthorized movement detection), which maintains effective anti-theft monitoring while significantly reducing energy consumption compared to continuous transmission.
Data Source
AI summary
An in-vehicle protection system includes a signal input interface, a vehicle protection circuit, and a global navigation satellite system (GNSS) module. The signal input interface receives an indication signal indicative of a status of a vehicle. The vehicle protection circuit includes a first processing unit, a second processing unit, and a controller. The first and second processing units perform predetermined action in response to abnormality of a vehicle, and have different computing power. The controller outputs the indication signal to one of the first and second processing units according to an operational state of the in-vehicle protection system. The GNSS module obtains positioning information of the vehicle. After the second processing unit detects an abnormal status of the vehicle, the first processing unit sends at least one of the positioning information and vehicle alarm information indicative of the abnormal status through a communication network.