Patent ID: 8078762
Filing Date: 2011-12-13
Classification: H04J,H04L,H04Q

Abstract:
1. A method for transmitting measured data from a sensor device to a control device, wherein synchronization messages sent by the control device are received in the sensor device and, on the basis of the reception of synchronization messages, the sensor device is put into a synchronous mode (SM) in which the sensor device sends data messages comprising the measured data to the control device in sync with the reception of the synchronization messages, wherein a check is performed to determine when synchronization messages sent by the control device are received in the sensor device, and the sensor device is put into the synchronous mode (SM) if the result of the check is that synchronization messages sent by the control device are received in line with a first time pattern, and wherein the sensor device is put into an asynchronous mode (AM) if the result of the check is that the synchronization messages are not received in the sensor device in line with the first time pattern, wherein in the asynchronous mode (AM) the sensor device sends data messages comprising the measured data to the control device at a prescribed frequency.