Vehicle Wireless Sensor Alarm Transmission for Battery-Saving Reliability
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Solution Overview
Problem
Current wireless vehicle sensors, such as TPMS, face battery life constraints due to the need for frequent RF transmissions, limiting the utilization of bidirectional communication capabilities like Bluetooth Low Energy, especially in systems requiring long battery life.
Innovation Solution
Implementing a configurable threshold system where wireless sensor devices transmit alarm messages only when critical thresholds are violated, reducing unnecessary transmissions and conserving battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If alarm transmissions are repeated at regular intervals, then the alarm message is communicated more reliably to remote monitoring centers, but the device consumes excessive battery power and generates unnecessary network traffic
Solution Approach 1:
The patent implements dynamic transmission intervals where the alarm message repetition frequency automatically adjusts based on whether an acknowledgment is received from the remote monitoring center. Initially, messages are transmitted at regular intervals, but upon receiving an acknowledgment, the system dynamically increases the interval between subsequent transmissions. This dynamic adaptation resolves the contradiction by maintaining reliable alarm delivery while significantly reducing power consumption and network traffic after the initial alarm is acknowledged.
2Reliability
If alarm transmissions continue at fixed intervals regardless of acknowledgment status, then message delivery is ensured, but network resources are wasted through redundant transmissions
Solution Approach 1:
The system incorporates feedback mechanisms where the wireless sensor device monitors acknowledgments received from the remote monitoring center. Based on this feedback, the device intelligently adjusts its transmission behavior - continuing regular transmissions until an acknowledgment is received, then switching to extended intervals. This feedback-driven approach eliminates redundant network transmissions while ensuring alarm messages are reliably delivered, resolving the contradiction between message delivery reliability and network resource efficiency.
3Use of energy by moving object
If the device switches to extended transmission intervals after acknowledgment, then power consumption and network traffic are reduced, but there may be delayed notification of updated alarm status
Solution Approach 1:
The patent applies preliminary action by ensuring the critical alarm message is transmitted and acknowledged before switching to extended intervals. The system proactively completes the essential alarm notification process with confirmed delivery before conserving energy through reduced transmission frequency. This preliminary completion of the urgent communication task resolves the contradiction by ensuring timely alarm delivery while enabling subsequent power conservation without significant delay in status updates.
Data Source
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AI summary
Methods, systems, apparatuses, and computer program products for persistent alarm transmissions associated with a vehicle mounted wireless sensor device are disclosed. In a particular embodiment, persistent alarm transmission includes a vehicle mounted wireless sensor device monitoring one or more operational parameters of a vehicle and detecting that the one or more operational parameters violates a configurable threshold that is configured by another device. In response to detecting that the one or more operational parameters violates the configurable threshold, the vehicle mounted wireless sensor device persistently transmits an alarm message.