Inherent power-over-data bus signaling for secure operating mode switching
First Claim
1. A method for changing an operating mode of a processing unit of a data network node for an aircraft, connected to a data communication and power supply line for providing data communication and for providing a supply voltage, the method comprising:
- establishing a data communication connection of the processing unit of the data network node to another data network node or a server unit via the data communication and supply line wherein the data communication connection of the processing unit to the data communication and supply line is established via a data switch of the data network node;
determining a change of the supply voltage of the data communication and power supply line by the processing unit;
setting an operation mode of the processing unit based on the determined change of the power supply voltage; and
exchanging, by an interface of the processing unit, data with application data services,wherein the setting of the operation mode of the processing unit comprises at least changing between a normal operation mode and a configuration mode,wherein the change between the normal operation mode and the configuration mode is set by triggering a change in voltage on the power supply line,wherein, in the normal operating mode, data is processed and/or forwarded according to requirements of connected services, andwherein, in the configuration mode, the device responds to configuration or administration instructions.
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Abstract
A method for changing an operating mode of a processing unit of a network node is described. The processing unit is connected to a communication and supply line for providing data communication and for providing a supply voltage. The method includes an establishing of a communication connection of the processing unit of the network node via the communication and supply line, a determination of a change of the supply voltage of the communication and supply line by the processing unit, and a setting of an operation mode of the processing unit based on the determined change of the supply voltage.
33 Citations
12 Claims
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1. A method for changing an operating mode of a processing unit of a data network node for an aircraft, connected to a data communication and power supply line for providing data communication and for providing a supply voltage, the method comprising:
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establishing a data communication connection of the processing unit of the data network node to another data network node or a server unit via the data communication and supply line wherein the data communication connection of the processing unit to the data communication and supply line is established via a data switch of the data network node; determining a change of the supply voltage of the data communication and power supply line by the processing unit; setting an operation mode of the processing unit based on the determined change of the power supply voltage; and exchanging, by an interface of the processing unit, data with application data services, wherein the setting of the operation mode of the processing unit comprises at least changing between a normal operation mode and a configuration mode, wherein the change between the normal operation mode and the configuration mode is set by triggering a change in voltage on the power supply line, wherein, in the normal operating mode, data is processed and/or forwarded according to requirements of connected services, and wherein, in the configuration mode, the device responds to configuration or administration instructions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A data network node for an aircraft data network, comprising
a processing unit; -
a sensor for measuring a voltage in a supply voltage in a data communication and power supply line connected to the processing unit; wherein the data network node is supplied with the supply voltage from the data communication and power supply line; wherein the processing unit is adapted to establishing a communication connection of a processing unit of the data network node via the data communication and power supply line; wherein the processing unit is adapted to determine a change of the central supply voltage of a data communication and power supply line with the sensor; wherein the processing unit is adapted to set an operation mode of the processing unit as a function of the state of the supply voltage, wherein the processing unit is adapted to exchange, by an interface of the processing unit, data with application data services, wherein the setting of the operation mode of the processing unit comprises at least changing between a normal operation mode and a configuration mode, wherein the setting of the normal operation mode and the configuration mode is triggered by changing a voltage on the supply voltage, wherein, in the normal operating mode, data is processed and/or forwarded according to requirements of connected services, and wherein, in the configuration mode, the device responds to configuration or administration instructions.
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11. An aircraft data network, comprising
a central server unit; -
a data network node comprising; a processing unit; a sensor for measuring a voltage in a supply voltage in a communication and supply line connected to the processing unit; wherein the data network node is supplied with the supply voltage from the supply and communication line; wherein the processing unit is adapted to establishing a communication connection of a processing unit of the data network node via the communication and supply line; wherein the communication connection of the processing unit to the communication and supply line is established via a data switch of the data network node; wherein the processing unit is adapted to determine a change of the central supply voltage of a data communication and power supply line with the sensor; wherein the processing unit is adapted to set an operation mode of the processing unit as a function of the state of the supply voltage, wherein the processing unit is adapted to exchange, by an interface of the processing unit, data with application data services, and a communication and supply line adapted to provide data communication between the central server unit and the data network node and to supply a supply voltage from the central server unit, wherein the setting of the operation mode of the processing unit comprises at least changing between a normal operation mode and a configuration mode, wherein the change between the normal operation mode and the configuration mode is set by triggering a change in voltage on the power supply line, wherein, in the normal operating mode data is processed and/or forwarded according to requirements of connected services, and wherein, in the configuration mode, the device responds to configuration or administration instructions. - View Dependent Claims (12)
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Specification