Vehicle Wireless Device Registration Control

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Solution Overview

Problem

Integrated wireless communication devices in vehicles face battery power exhaustion when periodically registering with the network while the vehicle's ignition is off, leading to potential inability to receive and respond to telematics commands if the vehicle is moved without re-registration.

Innovation Solution

The device operates in a reduced-registration mode, periodically determining vehicle movement from vehicle control system data and only re-registering with the network if the vehicle has moved a threshold extent, while scanning for messages destined to it.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the wireless device periodically registers with the network while the vehicle ignition is off, then the device can receive telematics commands, but the vehicle battery power is exhausted

Engineering Contradiction:

Improveability to receive telematics commandsVSAvoidvehicle battery power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The wireless device performs registration and network scanning at periodic intervals rather than continuously. The device wakes from a low-power state at scheduled times to check for movement and register with the network, then returns to sleep mode. This periodic operation significantly reduces battery power consumption while maintaining the ability to receive telematics commands when needed.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system uses vehicle movement data from existing vehicle control system sensors (odometer, GPS, accelerometer) to trigger registration decisions. The wireless device monitors its own movement status through these vehicle systems and autonomously determines when registration is necessary, eliminating the need for continuous network communication and reducing power consumption.

Inventive Principle:

Principle #25Self-service

2Use of energy by moving object

If the wireless device does not re-register with the network while the vehicle ignition is off, then battery power is conserved, but the device cannot receive telematics commands if the vehicle is moved

Engineering Contradiction:

Improvevehicle battery power conservationVSAvoidability to receive commands when vehicle is moved

Core Design Contradiction:

Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The system continuously monitors vehicle movement parameters (odometer readings, GPS location changes, accelerometer data) and uses this feedback to trigger registration events. When movement exceeds a threshold, the system receives feedback that registration is needed and automatically initiates the registration process, ensuring the device remains locatable and responsive to telematics commands only when necessary.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The wireless device performs registration in advance when movement is detected, before telematics commands are needed. By proactively registering when the vehicle moves, the device ensures network awareness is maintained ahead of time, allowing immediate receipt of telematics commands without requiring continuous registration.

Inventive Principle:

Principle #10Preliminary action

3Loss of information

If the wireless device engages in frequent air interface registration, then network awareness of device location is maintained, but battery power is consumed

Engineering Contradiction:

Improvenetwork awareness of device locationVSAvoidbattery power consumption

Core Design Contradiction:

Loss of informationVSUse of energy by moving object

Solution Approach 1:

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

Instead of performing full registration cycles continuously, the device performs partial registration actions only when necessary. The system checks for movement first and only initiates full registration when movement is detected, avoiding unnecessary registration operations and reducing overall power consumption while maintaining adequate network awareness.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS8571551B1Controlling wireless device registration based on vehicle movement

Publication Date: 2013.10.29 SPRINT SPECTRUM LLC

AI summary

A wireless communication device integrated with a vehicle operates in a reduced-registration mode while the vehicle ignition is off. In the reduced-registration mode, the wireless communication device periodically determines, based at least on vehicle control system data such as odometer data or wheel-rotation data, whether the vehicle has moved at least a threshold extent, and if so the wireless communication device engages in air interface registration. The arrangement helps to conserve vehicle battery power while the ignition is off, while keeping a serving radio access network apprised when the vehicle has been moved sufficiently, so that the network can more readily route messages such as telematics commands to the vehicle.