Monitoring Device Auto Start Stop Vehicle Halt Geofence
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Solution Overview
Problem
Current monitoring devices for perishable goods during transportation require manual starting and stopping, which can lead to errors and incomplete data collection due to human oversight.
Innovation Solution
A system and method that automatically start and stop monitoring devices using sensors to detect vehicle halts, communicate with a server to determine trip status, and activate/deactivate cellular and GPS networks to optimize power and ensure accurate monitoring within geofences at trip starting and ending locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual starting and stopping of monitoring devices is used, then device complexity is reduced, but reliability of monitoring deteriorates due to human oversight and errors
Solution Approach 1:
The monitoring device automatically detects vehicle halts using sensors (accelerometer, gyroscope) and autonomously determines trip status by communicating with the server, eliminating the need for manual intervention and ensuring consistent monitoring without human error
Solution Approach 2:
The system performs preliminary actions by detecting vehicle halt status and communicating with the server before actually starting or stopping the monitoring device, ensuring that monitoring is activated at the correct moment based on trip assignment status
2Measurement precision
If cellular network and GPS are continuously active, then trip status determination accuracy is improved, but energy consumption increases
Solution Approach 1:
The cellular network and GPS are activated only periodically when the vehicle is detected to be halted, rather than remaining continuously active. The system checks trip status at these intermittent moments and deactivates the communication modules afterward, reducing overall energy consumption while maintaining necessary monitoring accuracy
Solution Approach 2:
The system dynamically adjusts the operational state of the cellular network and GPS based on real-time vehicle status. When the vehicle is moving, these modules remain inactive; when halted, they are temporarily activated to determine trip status, optimizing the balance between measurement precision and energy consumption
Data Source
AI summary
A system and a method for automatically starting and/or stopping a monitoring device. The method includes detecting halt of a vehicle using a first sensor and a second sensor. The method also includes communicating with a server after detecting the halt to determine a trip assignment status of a monitoring device placed inside the vehicle. The method further includes determining if the vehicle is within a geofence of a trip starting location based on the trip assignment status of the monitoring device. The method further includes determining speed of the vehicle after the vehicle is within the geo-fence of the trip starting location. Accordingly, the monitoring device is automatically started when the speed of the vehicle reaches above a pre-determined speed.