Apparatus and method for synchronizing end nodes

Abstract

An apparatus (1) for synchronizing end nodes (3, 5) in a vehicle comprises an emitter (14) for emitting a synchronization signal (4) to the end nodes (3, 5); and a receiver (12) for receiving one or more response signals (2) from the end nodes (3, 5). The synchronization signal (4) is adapted to address a subset or all of the end nodes (3, 5) to enable a synchronized action of the addressed end nodes (3, 5) and / or to trigger a generation one or more response signals (2) in response to the received synchronization signal (4).

Description

technical field [0001] The invention relates to a device and a method for synchronizing end nodes, in particular to the synchronization of the actions of sensors and actuators in a vehicle, in particular in a commercial vehicle. Background technique [0002] Wireless end nodes (eg, sensors and actuators) are increasingly prevalent in automotive applications (eg, commercial vehicles). For example, by replacing existing wired connections with wireless solutions, it can make it easier to integrate various components. [0003] In many cases, replacing a wired device with a wireless solution means that the power supply must also be replaced. However, increased energy consumption becomes a major concern, especially for electric vehicles. The same applies to other forms of energy harvesting, which typically have only very limited performance. Therefore, the available energy should be conserved as much as possible. For example, sensor nodes require precious energy when taking me...

AI Technical Summary

Problems solved by technology

However, if sensors, for example, have to monitor asynchronous signals (e.g., to measure random motion) or if actuators have to actuate in unpredictable ways, synchronization becomes a major issue when the end nodes will still dissipate as little energy as possible. question

Images