Mobile ID Provider Periodic Status Request Signaling
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Solution Overview
Problem
Existing vehicle-key communication systems face high energy consumption and inefficiency due to continuous polling, leading to short battery life and impaired reception during alarms.
Innovation Solution
A method involving periodic transmission of status request signals with defined pauses, activation of the communications device in the vehicle during alarms, and adaptive cycle duration based on vehicle locking, movement, and reception confirmation, reducing energy usage and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle actively transmits status request signals continuously, then alarm detection reliability is improved, but energy consumption of the mobile ID provider increases
Solution Approach 1:
The patent implements periodic status request signal transmission with defined pause intervals between transmission cycles. The mobile ID provider transmits status requests only at specific intervals rather than continuously, significantly reducing energy consumption while maintaining alarm detection capability. The pause periods allow the device to enter low-power states while still periodically checking for alarm conditions.
Solution Approach 2:
The transmission cycle duration is made adaptive rather than fixed. The system dynamically adjusts the cycle length based on whether the vehicle is locked or unlocked, and whether alarm conditions are present. When the vehicle is locked, shorter cycles provide faster alarm detection; when unlocked, longer cycles reduce energy consumption. This dynamic adaptation resolves the contradiction between reliability and energy use.
2Reliability
If the vehicle actively transmits status request signals, then alarm detection capability is improved, but reception of commands from mobile ID provider during transmission is blocked
Solution Approach 1:
The communication protocol is segmented into distinct transmission and reception phases. During active transmission of status request signals, the vehicle communicator cannot receive commands. However, the system structures communications so that critical alarm detection functions operate during transmission phases, while non-critical commands are queued or transmitted during pause phases when reception is available.
3Reliability
If the mobile ID provider remains in stand-by receiving mode, then alarm reception is maintained, but average current consumption remains significant
Solution Approach 1:
Instead of maintaining continuous stand-by receiving mode, the mobile ID provider periodically activates its receiver during defined time windows when status request signals are transmitted. The receiver is activated only during these periodic intervals rather than continuously, reducing average current consumption by approximately 10-fold while maintaining the ability to detect alarm conditions when they occur.
Data Source
AI summary
A method for exchanging information between a vehicle (1) and a mobile ID provider (11) has the following process steps: transmitting status request signals of the ID provider (11) to a communications device (21) in the vehicle having a prescribed period, wherein the periodically occurring action has the status request signal and a predefined pause, —activating the communications device (21) in the vehicle in case of alarm in a receiving mode, receiving the status request signal of the ID provider (11) by the activated communications device (21) in the vehicle, —transmitting an alarm message by the communications device (21) in the vehicle to the mobile ID provider (11); and display of the alarm signal on the ID provider (11). The method is particularly suited for the display of alarm messages of a vehicle on a mobile ID provider.