METHOD FOR TRANSMITTING DATA OF AT LEAST ONE MEASUREMENT RECORDER OF A CONTROL NETWORK, TRANSMITTER, RECEIVER, MEASUREMENT RECORDING DEVICE AND CONTROL NETWORK

摘要

The invention relates to a method for transmitting data from at least one measured value sensor 18 of a control network 10 to a bus system 16, a transmitter 20, a receiver 30, a measured value recording device 14 and a control network 10. In the method, at least a portion of the data is compressed by means of at least one compression algorithm 26. At least part of the data of the at least one measured quantity recorder 18 is compressed before at least the compressed part of the data is transmitted to the bus system 16. With the Meßgrößenaufnehmer 18 an object located outside of a vehicle 24 detected and a distance 22 are determined to this. The distance 22 can be transmitted to the transmitter 20 in the form of distance data. The compressor 26 may be a Golomb-Rice encoder. Furthermore, the transmitter 20 comprises an encoder 28 with which a suitable format for the bus system 16, for example a CAN data format, can be brought. The control unit 12 has the receiver 30 and a central control unit 32. The receiver 30 comprises a decoder 34, with which received CAN data frames can be decoded and the compressed distance data contained therein can be extracted. Furthermore, the receiver 30 comprises a decompressor 36, with which extracted compressed distance data can be decompressed. The receiver 30 is connected to the central control unit 32. The central control unit 32 comprises mechanisms for controlling and / or controlling functions of the vehicle, for example for controlling the engine, for controlling the steering and / or for controlling brake functions, and / or for outputting acoustic and / or optical signals, for example warning signals. For this purpose, the control unit 12 is connected by way of example by means of corresponding bus systems 38 to nodes 40 which belong or lead, for example, to the brake system, the steering system, the engine control or signal output devices of the motor vehicle. In the method according to the invention, the data are already compressed early within the control network in order to improve the data transport within the bus system, in particular to accelerate and make it more efficient.