Motor vehicle roof antenna module, motor vehicle and method for operating the roof antenna module
First Claim
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1. A roof antenna module to be positioned on a roof of a motor vehicle comprising:
- at least one transceiver having a respective antenna;
at least one bus connection for connecting the roof antenna module to a respective digital communication bus of the motor vehicle; and
a communication control unit through which the at least one transceiver is coupled to the at least one bus connection, the communication control unit configured to transmit a plurality of communication messages between the at least one transceiver and the at least one bus connection,wherein the communication control unit includes a filter device configured to forward a control instruction to the at least one bus connection if the control instruction fulfills a predetermined safety criterion, wherein the control instruction is received through the at least one transceiver via a radio link from outside the motor vehicle, is addressed to a bus user of the at least one communication bus, and is contained within the plurality of communication messages.
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Abstract
The disclosure refers to a roof antenna module and to a method for operating the roof antenna module, wherein a communication control unit couples at least one transceiver with at least one bus connection and communication messages are transmitted between the at least one transceiver and the at least one bus connection. This approach prevents undesired manipulation of the motor vehicle from the outside. This approach uses a filter device of the communication control unit, that forwards a control instruction to the at least one bus connection only if the control instruction fulfills a predetermined safety criterion.
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Citations
20 Claims
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1. A roof antenna module to be positioned on a roof of a motor vehicle comprising:
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at least one transceiver having a respective antenna; at least one bus connection for connecting the roof antenna module to a respective digital communication bus of the motor vehicle; and a communication control unit through which the at least one transceiver is coupled to the at least one bus connection, the communication control unit configured to transmit a plurality of communication messages between the at least one transceiver and the at least one bus connection, wherein the communication control unit includes a filter device configured to forward a control instruction to the at least one bus connection if the control instruction fulfills a predetermined safety criterion, wherein the control instruction is received through the at least one transceiver via a radio link from outside the motor vehicle, is addressed to a bus user of the at least one communication bus, and is contained within the plurality of communication messages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A motor vehicle comprising:
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at least one digital communication bus; and a roof antenna module connected to the at least one communication bus, the roof antenna module comprising; at least one transceiver having a respective antenna, at least one bus connection for connecting the roof antenna module to a respective digital communication bus of the motor vehicle, and a communication control unit through which the at least one transceiver is coupled to the at least one bus connection, the communication control unit configured to transmit a plurality of communication messages between the at least one transceiver and the at least one bus connection, wherein the communication control unit includes a filter device, configured to forward a control instruction to the at least one bus connection if the control instruction fulfills a predetermined safety criterion, wherein the control instruction is received through the at least one transceiver via a radio link from outside the motor vehicle, is addressed to a bus user of the at least one communication bus, and is contained within the plurality of communication messages. - View Dependent Claims (14, 15, 16)
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17. A method for operating a roof antenna module of a motor vehicle, comprising:
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receiving a control instruction through at least one transceiver via a radio link from outside the motor vehicle, the control instruction being addressed to a bus user of at least one communication bus; connecting, by a communication control unit, the at least one transceiver to at least one bus connection, the connecting supporting transmitting a plurality of communication messages between the at least one transceiver and the at least one bus connection; and forwarding the control instruction, by a filter device of the communication control unit, to the at least one bus connection if the control instruction fulfills a predetermined safety criterion, wherein the at least one transceiver, the at least one bus connection and the communication control unit form at least a part of the roof antenna module, wherein the control instruction is included within the plurality of communication messages. - View Dependent Claims (18, 19, 20)
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Specification