Method and device for processing data associated with at least one interface device

Abstract

The invention relates to a method for processing data associated with at least one interface device, having the steps of: ascertaining first information which indicates whether at least one component of a second interface device which is designed to at least temporarily exchange data with a first interface device is to be set to an energy-saving mode, and if the information indicates that the at least one component of the second interface device is to be set to the energy-saving mode, transmitting a first command to the second interface device, said command signaling to the second interface device that the at least one component of the second interface device is to be set to the energy-saving mode.

Description

[0001] Description

[0002] title

[0003] Method and apparatus for processing data associated with at least one interface device

[0004] State of the art

[0005] The disclosure relates to a method, for example a computer-implemented method, for processing data associated with at least one interface device,

[0006] The disclosure further relates to an apparatus for processing data associated with at least one interface device.

[0007] Disclosure of the invention

[0008] Exemplary embodiments relate to a method, for example a computer-implemented method, for processing data associated with at least one interface device, comprising: determining first information indicating whether at least one component of a second interface device configured for at least temporary data exchange with a first interface device should be placed in a power-saving state, and, if the first information indicates that the at least one component of the second interface device should be placed in the power-saving state, sending a first command to the second interface device, which signals to the second interface device that the at least one component of the second interface device should be placed in the power-saving state.In further exemplary embodiments, an operation of the at least one component of the second interface device can thereby be flexibly controlled, for example with regard to an energy-saving state, for example by the first interface device or a target system for the first interface device.

[0009] In further exemplary embodiments, it is provided that, for example based on the first information and / or the first command, for example also, at least one component of the first interface device is placed into an energy-saving state.

[0010] In further exemplary embodiments, it is provided that if the first information indicates that the at least one component of the second interface device is not to be put into the energy-saving state, e.g. not at the moment, the sending of the first command to the second interface device is not carried out, i.e. is omitted.

[0011] In further exemplary embodiments, the energy saving state is characterized in that an electrical power consumption and / or energy consumption in the energy saving state is lower than outside the energy saving state, for example in a regular operating state.

[0012] In further exemplary embodiments, it can be provided that the second interface device can exchange data, e.g. with the first interface device, e.g. in the sense of the data exchange already described above by way of example, even when at least one of its components is in the energy-saving state. For example, a, for example maximum, data rate in the energy-saving state can be reduced compared to the regular operating state, which can result in savings in terms of electrical power consumption and / or energy consumption, for example. For example, the achievable, for example maximum, data rate in the energy-saving state can be sufficient to exchange signals or information that can be used for synchronizing the second interface device with the first interface device.

[0013] In further exemplary embodiments, the energy-saving state can be characterized, for example, by the data rate in the energy-saving state corresponding to the data rate of the regular operating state, wherein, however, it is specified, for example, that during the energy-saving state, data transmissions (e.g., at the regular data rate) only occur in a predeterminable first fraction (e.g., 10 percent) of, for example, a predeterminable time interval ("duty cycle"), while, for example, in a further fraction of the predeterminable time interval, for example, in the remaining period of the predeterminable time interval (e.g., 90%), no data transmissions occur. This can also result in further exemplary embodiments in terms of electrical power consumption and / or energy consumption, e.g., averaged over the predeterminable time interval.

[0014] In further exemplary embodiments, the at least one component of the second interface device, which can be placed into the energy-saving state at least temporarily, can be, for example, an interface module, for example a PHY module, or a component of a PHY module, for example a transmitter of the PHY module. For example, the at least one component of the second interface device can be activated during the energy-saving state for the aforementioned first fraction (e.g., 10% of the predeterminable time interval) and deactivated for the aforementioned second fraction (e.g., 90% of the predeterminable time interval).

[0015] In further exemplary embodiments, it is provided that the first command of the second interface device signals that the at least one component of the second interface device is to be put into the energy-saving state for a predeterminable period of time.

[0016] In further exemplary embodiments, it is provided that the first interface device and the second interface device are each designed as an Ethernet interface device, for example an automotive Ethernet interface device, for example according to or based on at least one of the following standards: a) IEEE 802.bp, b) IEEE 802.3ch, c) IEEE 802.3cy, d) IEEE 802.3cg. In further exemplary embodiments, the principle according to the embodiments is also applicable to other standards, e.g., Ethernet standards other than those mentioned above.

[0017] In further exemplary embodiments, it is provided that a component of the first and / or second interface device that can be set into the energy-saving state, for example based on the first command, is, for example, an interface module, for example a PHY module, or a component of a PHY module, for example a transmitting device and / or a receiving device.

[0018] In further exemplary embodiments, it is provided that the determination of the first information comprises at least one of the following elements: a) forming the first information, for example in the first interface device or in a target system having the first interface device (e.g. control unit), b) forming the first information based on at least one operating variable (e.g. temperature) of the second interface device or of a target system having the second interface device, wherein, for example, the operating variable of the second interface device can be received by the first interface device via a communication medium that can be used for data exchange, c) receiving the first information from the second interface device (e.g.a local formation of the first information in the second interface device is also conceivable in further exemplary embodiments) and / or at least one further unit.

[0019] In further exemplary embodiments, it is provided that the method comprises at least one of the following elements: a) receiving second information from at least one further unit (e.g. from a control unit or another control unit), b) forming the first information based on the second information, c) sending the first information based on the second information.

[0020] In further exemplary embodiments, it is provided that the transmission comprises: sending a sleep signal symbol to the second interface device, and, optionally, deactivating at least one component of the first interface device for a predeterminable period of time. This allows, for example, the second interface device to place its receiving device into the energy-saving state, and the first interface device can, for example, place its transmitter, which is connected, for example, via a wired transmission medium to the transmitting device of the second interface device, into the energy-saving state.

[0021] In further exemplary embodiments, the predeterminable period of time is a period of time for which the at least one component of the first interface device is placed in the energy-saving state, for example a low-power idle (LPI) state.

[0022] In further exemplary embodiments, a duty cycle can be defined for the energy-saving state, for example as a ratio of an active time (i.e., operation without the energy-saving state) and the predeterminable deactivation period. In further exemplary embodiments, the duty cycle can be predefined, for example, by repeatedly placing the at least one component, e.g., the first interface device, into the energy-saving state, e.g., sleep mode (or LPI mode). As a result, in further exemplary embodiments, for example, information-based switching can be implemented, e.g., in contrast to conventional switching between "quiet" and "refresh" states within the LPI mode.

[0023] In general, in further exemplary embodiments, at least one local component of a component executing the method according to the embodiments (e.g. first interface device) can also be put into an energy-saving state at least temporarily, e.g. when the method provides for putting at least one component of the second interface device into an energy-saving state.

[0024] In further exemplary embodiments, it is provided that the method comprises: controlling and / or regulating an electrical power consumption of the second interface device and / or a temperature of the second interface device or of a target system having the second interface device, for example by means of the first information or the sending of the first command.

[0025] In further exemplary embodiments, it is provided that the method comprises: specifying a working cycle for the energy saving state of the at least one component.

[0026] Further exemplary embodiments relate to an apparatus for carrying out the method according to the embodiments.

[0027] Further exemplary embodiments relate to an interface module, for example a PHY module, for an interface device, comprising at least one device according to the embodiments.

[0028] Further exemplary embodiments relate to a network coupling element, for example a switch, for example an automotive switch, comprising at least one device according to the embodiments and / or at least one interface module according to the embodiments.

[0029] Further exemplary embodiments relate to a module, for example a sensor module and / or control unit, comprising at least one device according to the embodiments and / or at least one interface module according to the embodiments and / or at least one network coupling element according to the embodiments.

[0030] Further exemplary embodiments relate to a communication system, for example for a vehicle, comprising at least one device according to the embodiments and / or at least one interface module according to the embodiments and / or at least one network coupling element according to the embodiments and / or at least one module according to the embodiments.

[0031] Further exemplary embodiments relate to a computer-readable storage medium comprising instructions that, when executed by a computer, cause the computer to perform the method according to the embodiments.

[0032] Further exemplary embodiments relate to a computer program comprising instructions which, when executed by a computer, cause the computer to carry out the method according to the embodiments.

[0033] Further exemplary embodiments relate to a data carrier signal that transmits and / or characterizes the computer program according to the embodiments.

[0034] Further exemplary embodiments relate to a use of the method according to the embodiments and / or the device according to the embodiments and / or the interface module according to the embodiments and / or the network coupling element according to the embodiments and / or the module according to the embodiments and / or the communication system according to the embodiments and / or the computer-readable storage medium according to the embodiments and / or the computer program according to the embodiments and / or the data carrier signal according to the embodiments for at least one of the following elements: a) Signaling that the at least one component of the second interface device should be put into the energy-saving state, b) Using low-power functions, for example an energy-saving state, of the at least one component of the second interface device, c) Controlling and / or regulating low-power functions,for example, an energy-saving state of at least one component of the second interface device, d) temperature control of a module having the second interface device, for example a sensor module, for example a camera module, e) power control of a module having the second interface device, for example a sensor module, for example a camera module, f) control of an electrical energy consumption of a module having the second interface device, g) integration of modules, for example sensor modules, for example sensor modules that are designed to output data at a comparatively high data rate, for example greater than 1000 Mbit / s, into a communication system, for example an automotive Ethernet communication system, h) operation of sensor modules, for example of the RADAR and / or LIDAR type and / or camera type.

[0035] Further features, possible applications, and advantages of the invention will become apparent from the following description of exemplary embodiments of the invention, which are illustrated in the figures of the drawing. All described or illustrated features, individually or in any combination, constitute the subject matter of the invention, regardless of their summary in the claims or their references, as well as regardless of their wording or representation in the description or in the drawing.

[0036] The drawing shows:

[0037] Fig. 1 schematically shows a simplified flow diagram according to exemplary embodiments,

[0038] Fig. 2 schematically shows a simplified block diagram according to exemplary embodiments,

[0039] Fig. 3 schematically shows a simplified flow diagram according to exemplary embodiments,

[0040] Fig. 4 schematically shows a simplified flow diagram according to exemplary embodiments,

[0041] Fig. 5 schematically shows a simplified flow diagram according to exemplary embodiments,

[0042] Fig. 6 schematically shows a simplified block diagram according to exemplary embodiments,

[0043] Fig. 7 schematically shows a simplified block diagram according to exemplary embodiments, Fig. 8 schematically shows a simplified block diagram according to exemplary embodiments,

[0044] Fig. 9 schematically shows a simplified block diagram according to exemplary embodiments,

[0045] Fig. 10 schematically shows a simplified block diagram according to exemplary embodiments,

[0046] Fig. 11 schematically shows a simplified block diagram according to exemplary embodiments,

[0047] Fig. 12 schematically shows a simplified block diagram according to exemplary embodiments,

[0048] Fig. 13 schematically shows a simplified block diagram according to exemplary embodiments

[0049] Fig. 14 schematically illustrates aspects of uses according to exemplary embodiments.

[0050] Exemplary embodiments, Fig. 1, relate to a method, for example a computer-implemented method, for processing data associated with at least one interface device 20-1, 20-2 (Fig. 2), comprising: determining 100 (Fig. 1) first information 1-1 indicating whether at least one component 20-2-K (Fig. 2) of a second interface device 20-2 configured for at least temporary data exchange A1 with a first interface device 20-1 should be put into a power-saving state, and, if the first information 1-1 indicates that the at least one component 20-2-K of the second interface device 20-2 should be put into the power-saving state, sending 102 (Fig.1) a first command B-1 to the second interface device 20-2, which signals to the second interface device 20-2 that the at least one component 20-2-K of the second interface device 20-2 should be placed in the energy-saving state. In further exemplary embodiments, an operation of the at least one component 20-2-K of the second interface device 20-2, for example with regard to an energy-saving state, can thereby be flexibly controlled, for example by the first interface device 20-1 or a target system for the first interface device 20-1 (e.g., a control unit (not shown) having the first interface device 20-1).

[0051] In further exemplary embodiments, the first information can be represented, for example, by at least one bit, e.g., bit flag.

[0052] In further exemplary embodiments, it is provided that, for example based on the first information 1-1 and / or the first command B-1, for example also, at least one component 20-1 -K of the first interface device 20-1 is put into an energy-saving state.

[0053] In further exemplary embodiments, it is provided that if the first information 1-1 indicates that the at least one component 20-2-K of the second interface device 20-2 should not be put into the energy saving state, e.g. not at the moment, the sending 102 (Fig. 1) of the first command B-1 to the second interface device 20-2 is not carried out, i.e. is omitted.

[0054] In further exemplary embodiments, the energy-saving state is characterized in that an electrical power consumption and / or energy consumption (for example averaged over a predeterminable time interval) in the energy-saving state (for example of the respective component 20-1-K, 20-2-K) is lower than outside the energy-saving state, for example in a regular operating state.

[0055] In further exemplary embodiments, Fig. 2, it can be provided that the second interface device 20-2 can exchange data, e.g. with the first interface device 20-1, e.g. in the sense of the data exchange A1 already described above by way of example, even when at least one of its components 20-2-K is in the energy-saving state. For example, a, for example maximum, data rate in the energy-saving state can be reduced compared to the regular operating state, which can result in savings in terms of electrical power consumption and / or energy consumption, for example. For example, the achievable, for example maximum, data rate in the energy-saving state can be sufficient to exchange signals or information that can be used for synchronizing the second interface device with the first interface device.

[0056] In further exemplary embodiments, the energy-saving state can be characterized, for example, in that the data rate in the energy-saving state corresponds to the data rate of the regular operating state, wherein, however, it is specified, for example, that during the energy-saving state, data transmissions (e.g., at the regular data rate) only occur in a predeterminable first fraction (e.g., 10 percent) of a predeterminable time interval ("duty cycle"), while, for example, in a further fraction of the predeterminable time interval, for example, in the remaining period of the predeterminable time interval (e.g., 90%), no data transmissions occur. This can also result in further exemplary embodiments in terms of electrical power consumption and / or energy consumption, e.g., averaged over the predeterminable time interval.

[0057] In further exemplary embodiments, Fig. 2, the at least one component 20-2-K of the second interface device 20-2, which can be placed into the energy-saving state at least temporarily, can be, for example, an interface module, for example a PHY module, or a component of a PHY module, for example a transmitter of the PHY module. For details on this, see, for example, Fig. 7. For example, the at least one component 20-2-K of the second interface device 20-2 can be activated for the aforementioned first fraction (e.g., 10% of the predeterminable time interval) during the energy-saving state and deactivated for the aforementioned second fraction (e.g., 90% of the predeterminable time interval).

[0058] In further exemplary embodiments, Fig. 1, it is provided that the first command B-1 of the second interface device 20-2 signals that the at least one component 20-2-K of the second interface device 20-2 should be placed in the energy-saving state for a predeterminable period of time. In further exemplary embodiments, Fig. 2, it is provided that the first interface device 20-1 and the second interface device 20-2 are each designed as an Ethernet interface device, for example an automotive Ethernet interface device, for example according to or based on at least one of the following standards: a) IEEE 802.bp, b) IEEE 802.3ch, c) IEEE 802.3cy, d) IEEE 802.3cg.

[0059] In further exemplary embodiments, it is provided that a component 20-1-K, 20-2-K of the first and / or second interface device 20-1, 20-2, which can be set into the energy-saving state, for example based on the first command B-1, is, for example, an interface module, for example a PHY module, or a component of a PHY module, for example a transmitting device and / or a receiving device.

[0060] In further exemplary embodiments, Fig. 1 , it is provided that the determination 100 of the first information 1-1 comprises at least one of the following elements: a) forming 100a of the first information 1-1, for example in the first interface device 20-1 or in a target system having the first interface device (e.g. control unit ECU), b) forming 100b of the first information 1-1 based on at least one operating variable (e.g. temperature) 20-2-BG of the second interface device 20-2 or of a target system MOD, SM having the second interface device 20-2, wherein, for example, the operating variable 20-2-BG of the second interface device 20-2 is transmitted from the first interface device 20-1 via a usable for the data exchange A1

[0061] communication medium (e.g. wired Ethernet data connection, e.g. twisted-pair data transmission cable) is receivable, c) receiving 100c the first information 1-1 from the second interface device 20-2 (e.g. a local formation of the first information 1-1 in the second

[0062] Interface device 20-2 or the module MOD or sensor module SM (also conceivable in further exemplary embodiments) and / or from at least one further unit 20' (e.g. another control unit), e.g. via a different data connection (wired and / or wireless) than the data connection usable for the data exchange A1 and / or via the data connection usable for the data exchange A1. In further exemplary embodiments, Fig. 3, it is provided that the method comprises at least one of the following elements: a) receiving 110 second information I-2 (e.g. sensor data and / or operating variables e.g. from another control unit or a target system such as a vehicle) from at least one further unit 20' (Fig. 2) (e.g. from a control unit or another control unit), b) forming 112 (Fig. 3) the first information 1-1 based on the second information I-2, c) sending 114 the first information 1-1, e.g.to the second interface device 20-2, based on the second information I-2, e.g. after receiving the second information I-2 or after forming the first information I-1 based on the received second information I-2.

[0063] In further exemplary embodiments, Fig. 3, it is provided that the transmission 114 comprises: transmission 114a of a sleep signal to the second interface device 20-2 (Fig. 2), and, optionally, deactivation 114b (Fig. 3) of at least one component 20-1-K (Fig. 2) of the first interface device 20-1 for a or the predeterminable period of time. As a result, for example, the second interface device 20-2 can put its receiving device into the energy-saving state, and the first interface device 20-1 can, for example, put its transmitter (not shown in Fig. 2, for details see Fig. 7), which is connected, for example, via a wired transmission medium to the transmitting device of the second interface device 20-2, into the energy-saving state.

[0064] In general, in further exemplary embodiments, at least one local component 20-1 -K of a component 20-1 executing the method according to the embodiments (e.g., first interface device) 20-1 can be put into an energy-saving state at least temporarily, e.g., when the method provides for putting at least one component 20-2-K of the second interface device 20-2 into an energy-saving state. In further exemplary embodiments, this also applies, for example, when, for example, no EEE-compatible signals are used or can be used, e.g., for signaling the first information 1-1 and / or the first command B-1. In further exemplary embodiments, Fig. 4, it is provided that the method comprises: controlling 120 and / or regulating 122 an electrical power consumption LA-EL of the second interface device 20-2 and / or a temperature 20-2-TEMP, MOD-TEMP (Fig.2) the second interface device 20-2 or a target system having the second interface device 20-2, e.g. module MOD, e.g. sensor module SM, for example by means of the first information 1-1 or the transmission 102 of the first command B-1.

[0065] In further exemplary embodiments, Fig. 5, it is provided that the method comprises: specifying 130 a working cycle AZ for the energy saving state of the at least one component 20-1-K, 20-2-K.

[0066] Further exemplary embodiments, Fig. 6, relate to an apparatus 200 for carrying out the method according to the embodiments.

[0067] In further exemplary embodiments, it is provided that the device 200 comprises: a computing device ("computer") 202 having at least one computing core 202a, a memory device 204 assigned to the computing device 202 for at least temporarily storing at least one of the following elements: a) data DAT (e.g. data characterizing the first and / or second information 1-1, 1-2), b) computer program PRG, for example for carrying out the method according to the embodiments.

[0068] In further exemplary embodiments, the memory device 204 comprises a volatile memory (e.g., random access memory (RAM)) 204a, and / or a non-volatile (NVM) memory (e.g., flash EEPROM) 204b, or a combination thereof or with other memory types not explicitly mentioned.

[0069] Further exemplary embodiments relate to a computer-readable storage medium SM, comprising instructions PRG that, when executed by a computer 202, cause the computer 202 to execute the method according to the embodiments. Further exemplary embodiments relate to a computer program PRG, comprising instructions that, when executed by a computer 202, cause the computer 202 to execute the method according to the embodiments.

[0070] Further exemplary embodiments relate to a data carrier signal DCS, which characterizes and / or transmits the computer program PRG according to the embodiments. The data carrier signal DCS can be received, for example, via an optional data interface 206 of the device 200, wherein the optional data interface 206 can be associated, for example, with the data exchange A1 (Fig. 2), e.g., can have the first interface device 20-1. Likewise, for example, the first and / or second information 1-1, 1-2 or data characterizing them can be transmitted (e.g., sent and / or received) via the optional data interface 206. In further exemplary embodiments, communication, e.g., data communication with the at least one further unit 20' (Fig. 2), can also take place via the optional data interface 206.

[0071] Further exemplary embodiments, Fig. 7, relate to an interface module, for example a PHY module, SSB-PHY-B for an interface device B, comprising at least one device 200 or a functionality of the device 200 according to the embodiments. Fig. 7 shows an example configuration for an Ethernet data connection with a first Ethernet interface device A and a second Ethernet interface device B.

[0072] In the schematic representation according to Fig. 7, it should be noted that the dashed blocks 200 are arranged purely symbolically within the PHY components SSB-PHY-A, SSB-PHY-B, e.g., to express that in some exemplary embodiments the PHY components SSB-PHY-A, SSB-PHY-B realize or implement at least some aspects of a functionality of the device 200. In further exemplary embodiments, at least some functional and / or structural aspects of the blocks 200 can also be arranged outside the PHY components SSB-PHY-A, SSB-PHY-B and, e.g., at least temporarily act on the PHY components SSB-PHY-A, SSB-PHY-B (and / or on other components of the elements A, B). The first Ethernet interface device A comprises the already mentioned PHY component, SSB-PHY-A, which may comprise aspects of the device 200 or may be configured to carry out at least some aspects of the method according to the embodiments.Furthermore, the first Ethernet interface device A has an optional reconciliation sublayer RS-A, which in the present case establishes, for example, a connection between the PHY component, SSB-PHY-A, a MAC (Medium Access Control) device MAC-A and, optionally, an LPI client LPI-A. The double arrow A-A1 symbolizes an optional data connection of the MAC device MAC-A to a data source and / or data sink not shown in Fig. 7 for reasons of clarity, e.g. having or associated with at least one of the following elements: a) microprocessor (e.g. of a control unit), b) microcontroller (e.g. of a control unit), c) sensor, d) network coupling element, e.g. switch.

[0073] The second Ethernet interface device B has, in a manner comparable to the first Ethernet interface device A, a PHY module SSB-PHY-B, which can optionally, for example, also have aspects of the device 200 or can be designed to carry out at least some aspects of the method according to the embodiments, but does not necessarily have to have aspects 200 of the device 200 or is not necessarily designed to carry out at least some aspects of the method according to the embodiments. Furthermore, the second Ethernet interface device B has an optional reconciliation sublayer RS-B, which in the present case, for example, establishes a connection between the PHY module SSB-PHY-B, a MAC device MAC-B and, optionally, an LPI client LPI-B. The double arrow B-A1 symbolizes an optional data connection of the MAC device MAC-B to a data source and / or data sink not shown in Fig. 7 for reasons of clarity, e.g.comprising or associated with at least one of the following elements: a) microprocessor (e.g. of a control unit), b) microcontroller (e.g. of a control unit), c) sensor, d) network coupling element, e.g. switch.

[0074] In further exemplary embodiments, for example, at least one of the LPI clients LPI-A, LPI-B may also comprise aspects of the device 200 or may be configured to carry out at least some aspects of the method according to the embodiments.

[0075] In further exemplary embodiments, the LPI clients LPI-A, LPI-B can be integrated or implemented, for example, in the respective MAC device MAC-A, MAC-B, see also the dotted line that surrounds the elements MAC-A, LPI-A or MAC-B, LPI-B.

[0076] In further exemplary embodiments, the LPI clients LPI-A, LPI-B can exchange signals of the type "LP_IDLE. indication", e.g. in the sense of the first information 1-1 (Fig. 1) or the first command B-1.

[0077] In further exemplary embodiments, the two PHY modules SSB-PHY-A, SSB-PHY-B are configured as master-slave tuples and translate incoming data from the MAC layer, e.g. the MAC devices MAC-A or MAC-B, into physical signals, e.g. modulated voltage levels (signals) on a transmission medium MED and vice versa.

[0078] In further exemplary embodiments, for example, full-duplex operation is provided, e.g., at all times. In further exemplary embodiments, this means that both PHY components SSB-PHY-A and SSB-PHY-B transmit and / or receive at a maximum specified data rate, e.g., according to a standards-based definition: 10 Mbps (100 Mbps 100BASE-T, 1 Gbps 1GBASE-T1, 2.5 / 5 / 10 Gbps MGBASE-T1).

[0079] The PHY module SSB-PHY-A has a transmitter (TA) and a receiver (RA). The PHY module SSB-PHY-B has a transmitter (TB) and a receiver (RB). As can be seen in Fig. 7, the transmitter (TA) is connected to the receiver (RB), and the transmitter (TB) is connected to the receiver (RA).

[0080] In further exemplary embodiments, the PHY components SSB-PHY-A, SSB-PHY-B generate, e.g., pseudorandom data, which is transmitted via the transmitters TA, TB, e.g., when there is no data coming from the MAC layer to be transmitted via the medium MED. This results in a corresponding, e.g., maximum, electrical power consumption, even though there is currently no data to be transmitted from the MAC layer or regardless of whether there is data to be transmitted from the MAC layer. In further exemplary embodiments, a similar situation also applies to the receivers RA, RB, which implement, e.g., hybrid (digital and analog) signal processing, e.g., comprising echo cancellation, adaptive equalizing (e.g., equalization), etc.

[0081] In further exemplary embodiments, aspects of Energy Efficient Ethernet (EEE), as standardized, can be implemented, for example, to reduce electrical power consumption, e.g., in the absence of data to be sent from the MAC layer. For this purpose, in further exemplary embodiments, logic can be implemented, for example, using the LPI clients LPI-A, LPI-B. For example, the LPI clients LPI-A, LPI-B can send so-called idle requests (e.g., of the "assert" or "deassert" type) to the respective connection partner.

[0082] In further exemplary embodiments, for example, the LPI client LPI-B shown on the left in Fig. 7 can send an LP_IDLE.indication(assert) command via the optional reconciliation sublayer RS-B and the PHY component SSB-PHY-B to the Ethernet interface device A, which in turn knows that the connection or the link TB to RA (i.e. the data connection between the transmitter TB and the receiver RA) will enter a power saving state, e.g. a "low power idle operation", e.g. for a predeterminable period of time.

[0083] During this period, the PHY component SSB-PHY-B can deactivate its transmitter TB, and the link partner SSB-PHY-A can deactivate its receiver RA, thereby saving electrical energy. In further exemplary embodiments, the components TB, RA can be activated temporarily, e.g., for a short time each (see the duty cycle already mentioned above), e.g., to maintain synchronization of the two PHY components SSB-PHY-A, SSB-PHY-B and / or to enable transmission of information associated with the energy-saving state or termination of the energy-saving state, e.g., so-called "LP_IDLE.indication(deassert)" commands to return the link TB, RA from the energy-saving state to a regular operating state, in which, e.g., the two components TB, RA are permanently activated (e.g., in contrast to the energy-saving state) and can transmit data, e.g., at the maximum data rate.

[0084] In further exemplary embodiments, e.g. alternatively or additionally, the method described above by way of example with reference to the link TB, RA can also be applied to the link TA, RB.

[0085] In further exemplary embodiments, aspects, for example methods or protocols, e.g. of an EEE-related part of an Ethernet standard can be used, e.g. to at least temporarily control an operation of the second interface device 20-2 (Fig. 2) (or at least one of its components 20-2-K) based on the first information 1-1 and / or by means of the first command B-1.

[0086] In further exemplary embodiments, the principle according to the embodiments can be used, for example, to provide energy-efficient communication or communication systems 1000 (Fig. 2), e.g., for applications that carry out information transfer from / to a module MOD (Fig. 2), for example, a sensor module SM. For example, the sensor module can comprise at least one of the following elements: camera, RADAR sensor, LI DAR SENSOR, actuator(s) (e.g., projector light of an LED or LASER emitter, which e.g., modulates light waves in the sense of a transmitter in order to transmit information to a remotely located receiver (e.g., based on Visible Light Communication (VLC), Optical Wireless Communication (OWC), display, etc.). For example, data sources and / or sinks can be used to apply the principle according to the embodiments, e.g., in addition to the modules mentioned above as examples, e.g.,Sensor modules, at least one of the following elements: control unit, e.g. ECU, vehicle computer, e.g. vehicle computer, sensor hub, zone control unit (zonal ECU), etc.).

[0087] Fig. 8 schematically shows a simplified block diagram according to exemplary embodiments, in which aspects according to exemplary embodiments can be used to implement closed-loop control, e.g., closed-loop control, of an operating variable, e.g., temperature, of a sensor module SM. For example, the temperature control can be used to regulate electrical power dissipated by the sensor module SM or at least one component thereof, for example, in order to maintain thermal boundary conditions for proper operation of the sensor module SM, e.g., predetermined by a design or layout.

[0088] A control unit ECU has a first PHY module SSB-PHY-1, which is designed at least temporarily to execute at least some aspects of the principle according to the embodiments. This is symbolized in Fig. 8 by way of example by the indication of the device 200 in the region of the control unit ECU. In some embodiments, for example, the device 200 can be at least partially integrated into the control unit ECU. In some further embodiments, however, at least part of a functionality of the device 200 can also be integrated into at least one other component of the control unit ECU, for example in the first PHY module SSB-PHY-1, i.e. the device 200 is not integrated as such, e.g. structurally, into the control unit ECU.

[0089] The elements SSB-PHY-2, ... , SSB-PHY-n symbolize further PHY components that can be provided in the control unit ECU in further exemplary embodiments. The elements MAC-1, MAC-2, ... , MAC-n symbolize, for example, MAC devices of the control unit ECU assigned to the respective PHY components according to further exemplary embodiments. The element SW-CORE symbolizes a switch core associated with the MAC devices MAC-1, MAC-2, ... , MAC-n, e.g. having a switching network. The element LPI-1 symbolizes an optional LPI client. The element CTRL symbolizes an optional control device that is designed, for example, to execute aspects of the method according to the embodiments. The element RS-ECU symbolizes an optional reconciliation sublayer.

[0090] The SSB-PHY-SM element symbolizes a PHY component of the sensor module SM, whereby a control device CTRL-SM can optionally be assigned to the SSB-PHY-SM PHY component. The RS-SM element symbolizes an optional reconciliation sublayer of the sensor module SM. The MAC-SM element symbolizes a MAC device of the sensor module SM. The LPI-2 element symbolizes an optional LPI client of the sensor module SM. The BR element symbolizes an optional bridge device of the sensor module SM. The CTRL-SM' element symbolizes an optional additional control device of the sensor module SM, to which, for example, a temperature sensor TS is connected. The SENS element symbolizes a sensor unit of the sensor module SM, for example a digital image sensor and / or a RADAR device and / or a LIDAR device or the like.

[0091] In further exemplary embodiments, the components SSB-PHY-SM, LPI-2 of the sensor module SM operate in an EEE-compatible or EEE-compliant manner, so that, for example, the control unit ECU can send the first command B-1 (see also Fig. 1) to the sensor module SM via the communication connection MED, for example to request the sensor module SM to switch to an energy-saving state at least one of its components (e.g. a receiver (not shown in Fig. 8, see e.g. element RB according to Fig. 7)). For this purpose, it may be sufficient in some embodiments if the sensor module SM operates in an EEE-compliant manner, but it is not necessary, for example, for the sensor module SM to execute aspects according to exemplary embodiments because these are executed, for example, in the sphere of the control unit ECU.

[0092] In further exemplary embodiments, the control unit ECU can receive information characterizing temperature measured values ​​of the temperature sensor via the communication connection MED (cf., for example, the second information I-2 described above as an example) and on this basis, for example, determine whether at least one component of the sensor module SM should be put into an energy-saving state, for example if the temperature measured values ​​indicate that a predeterminable maximum temperature has been exceeded.

[0093] In further exemplary embodiments, for example, a chain of effects for transmitting information characterizing the temperature measured values ​​from the temperature sensor TS of the sensor module SM to the control device CTRL of the control unit ECU is possible according to the arrows a1. If, for example, a predefinable maximum temperature is exceeded, the control device CTRL can influence the LPI client LPI-1, e.g. to cause the sensor module SM to enter an energy-saving state (e.g. at least for one component of the sensor module SM). In further exemplary embodiments, for example, a chain of effects for this purpose is possible from the control device CTRL of the control unit ECU to the control device CTRL-SM of the PHY module SSB-PHY-SM according to the arrows a2.

[0094] In further exemplary embodiments, the control device CTRL can, for example, configure the LPI client LPI-1 in such a way that it sets the working cycle with regard to energy-saving states of the PHY component SSB-PHY-SM of the sensor module SM in such a way that the electrical power consumption of the PHY component SSB-PHY-SM is reduced, for example until the thermal boundary conditions for the sensor module SM are met again, for example until a predefinable maximum temperature of the sensor module SM is undershot.

[0095] In further exemplary embodiments, the principle described above by way of example can also be applied to the PHY module SSB-PHY-1 of the control unit ECU, for example independently of the configuration described above and, for example, the direction of the data flow, wherein in this case, for example, at least partial aspects of the exemplary embodiments can be implemented, for example, in the control device CTRL-SM.

[0096] In further exemplary embodiments, the arrows a3 in Fig. 8 symbolize possible paths for sensor data, such as can be provided by the sensor unit SENS of the sensor module SM.

[0097] Fig. 9 schematically shows a simplified block diagram according to further exemplary embodiments. Similar to Fig. 8, a control unit ECU' and a sensor module SM' are depicted, which predominantly have similar or identical components to the control unit ECU and the sensor module SM according to Fig. 8.

[0098] In further exemplary embodiments, for example when temperature information is not available in the area of ​​the sensor module, as is the case with the sensor module SM' according to Fig. 9, an energy saving state or a working cycle for an energy saving state can be initiated or controlled or regulated, for example based on the sensor data of the sensor device SENS of the sensor module SM' or based on data derivable therefrom.

[0099] For example, in the sensor module SM' according to Fig. 9, the sensor device SENS can be designed as a camera, e.g., with a digital image sensor. In further exemplary embodiments, an effective data rate of the camera SENS can be regulated, e.g., throttled to a predeterminable level, e.g., by activating a power-saving state, e.g., of at least one component of the PHY module SSB-PHY-SM', relatively frequently, for example, via the LPI client LPI-1 of the control unit ECU', for example, based on data that a signal processor SP, e.g., image data signal processor ISP of the control unit ECU', determines based on sensor data received from the sensor module SM' (see arrows a4). Optionally, the received sensor data can be processed, e.g., by the processor PROC of the control unit ECU' and / or by the image data signal processor ISP. On this basis, the LPI client LPI-1 can then be controlled, e.g., see arrows a5, e.g.,to activate a power-saving state, for example of at least one component of the PHY module SSB-PHY-SM'. The throttling of the effective data rate based on the, for example, repeated activation of power-saving states, for example of at least one component of the PHY module SSB-PHY-SM', can in further exemplary embodiments take place, for example, when an evaluation of the sensor data shows that, for example, an image content characterized by the sensor data does not change or does not change significantly (exceeding a predefinable threshold value). If a change in the image content is detected, for example a significant change, the power-saving state can, for example, be deactivated, for example also using the LPI client LPI-1.

[0100] Fig. 10 schematically shows a simplified block diagram according to further exemplary embodiments. Similar to Fig. 9, a control unit ECU" and a sensor module SM" are depicted, which predominantly have similar or identical components to the control unit ECU' and the sensor module SM' according to Fig. 9. Similar to Fig. 9, the arrows a4 in Fig. 10 symbolize a data flow of sensor data received by the sensor module SM" via the switch core SW-CORE of the control unit ECU" to the PHY module SSB-PHY-n. In other words, in the exemplary configuration according to Fig. 10, the sensor data of the sensor module SM" received by the control unit ECU" are forwarded via the PHY module SSB-PHY-n, for example, to another unit not shown (e.g., a central network element of a communication network that also has the elements ECU", SM"). The arrow a6 symbolizes a data connection from the control unit ECU" to another unit (also not shown), e.g.via a CAN bus, the element a6' symbolizes a CAN transceiver which is, for example, directly connected to the processor PROC, and the arrow a7 symbolizes a control of the control device CTRL, for example based on the data which the control unit ECU" or the processor PROC has received via the CAN bus a6. The control a7 can, for example, act on the LPI client LPI-1, for example to put at least one component of the sensor module SM", for example based on the data which the control unit ECU" or the processor PROC has received via the CAN bus a6, at least temporarily into an energy-saving state, see the arrows a8 according to Fig. 10.

[0101] In further exemplary embodiments, the configuration described above by way of example with reference to Fig. 10 can be used for the processor PROC of the control unit ECU to control and / or regulate an electrical power consumption and / or energy consumption of the PHY module SSB-PHY-SM' (and thus, for example, at least indirectly also the temperature of the PHY module SSB-PHY-SM' or of the sensor module SM), e.g. based on a RADAR detection signaled via the CAN bus (e.g. from a RADAR sensor device not shown) ("cross-protocol information").

[0102] In further exemplary embodiments, other information, for example associated with a periphery of the control unit ECU ("peripheral information"), can also be used, e.g. to determine whether at least one component of a communication partner SM" of the control unit ECU" and / or at least one component of the control unit ECU" itself should be put into an energy-saving state at least temporarily, and / or to determine, e.g., a respective duty cycle for the energy-saving state. For example, information, e.g., sensor information, of one or more other units 20", for example, devices or sensor modules, etc., which are not themselves connected to the control unit ECU via Ethernet, e.g., automotive Ethernet, can thus be used to determine the energy-saving state for at least one component, e.g.,of the sensor module SM" and / or the control unit ECU", for example in the sense of the first information 1-1 or the first command B-1 (see Fig. 1).

[0103] For example, element 20" according to Fig. 10 can symbolize a sensor that is connected to the control unit ECU" via a serial interface SPI. The sensor 20" supplies sensor data (not shown) to the control unit ECU" via the serial interface SPI, e.g., in the sense of the second information I-2 described above by way of example with reference to Fig. 3, and the control unit ECU" controls a power-saving state or duty cycle for the power-saving state for at least one component, e.g., of the sensor module SM" and / or the control unit ECU" based on the sensor data received from the sensor 20" via the SPI interface. In further exemplary embodiments, the PHY modules SSB-PHY-SM', SSB-PHY-T, ...of the sensor module SM" and the control unit ECU" are put into the energy-saving state based on the sensor data received from the sensor 20" via the SPI interface, for example for a comparatively long time, and are reactivated, e.g. event-based, e.g. when the sensor data received from the sensor 20" via the SPI interface characterize a corresponding event, upon the occurrence of which the PHY components SSB-PHY-SM', SSB-PHY-T, ... of the sensor module SM" and the control unit ECU" are to leave the energy-saving state. In this way, a comparatively less complex SPI-based sensor device can, for example, control an energy-saving state of the PHY components SSB-PHY-SM', SSB-PHY-T, ... of the sensor module SM" and the control unit ECU" or influence a corresponding control.

[0104] Further exemplary embodiments, Figs. 9, 10, relate to a network coupling element, for example a switch, SW, for example an automotive switch, SW, comprising at least one device 200 according to the embodiments (or a functionality corresponding to the device 200) and / or at least one interface module SSB-PYH-1, SSB-PHY-T according to the embodiments. In further exemplary embodiments, at least some aspects of the functionality corresponding to the device 200 can be realized or implemented in at least one of the following components of the control unit ECU according to Fig. 10: SSB-PHY-T, LPI-1, CTRL, PROC (or, in further exemplary embodiments, in any combination thereof).

[0105] Further exemplary embodiments, see e.g. Fig. 8, 9, 10, relate to a module, for example sensor module SM, SM', SM" and / or control unit ECU, ECU', ECU", comprising at least one device according to the embodiments (or a functionality corresponding to the device 200) and / or at least one interface module according to the embodiments and / or at least one network coupling element SW according to the embodiments.

[0106] Fig. 11 schematically shows a simplified block diagram according to exemplary embodiments. Blocks E1 to E9 symbolize exemplary aspects or variants of the principle according to the embodiments, as they can be provided in further exemplary embodiments. In detail, the blocks symbolize the following:

[0107] E1: a control of energy-saving states of at least one component 20-1-K, 20-2-K of at least one interface device 20-1, 20-2, for example using aspects of EEE (Energy Efficient Ethernet), for example based on information that can come from different spheres (e.g. from sensor modules SM, SM', SM", connected via Ethernet, e.g. automotive Ethernet, from a control unit ECU, ECU', ECU", executing the method, from a further unit, for example sensor device 20", which is also connected to a control unit ECU, ECU', ECU" executing the method in a manner other than via Ethernet, e.g. automotive Ethernet, for example via CAN or another bus system, or via SPI, LIN, FlexRay, l 2 C, etc.),

[0108] E2: a control according to block E1 with respect to a first data transmission direction, for example, transmission direction, for example, related to a specific interface device, for example, controllable by means of a local LPI client, E3: a control according to block E2, based on, for example, EEE-compatible or -compliant energy saving states, for example, in the receive direction,

[0109] E4: a control according to block E2, based on locally available information, e.g. data from a temperature sensor, image data from a camera device,

[0110] E5: a control according to block E2, based on remotely available information, e.g. data, e.g. from sensors, which are exchangeable, e.g. receivable, via a network or an interface,

[0111] E6: a control according to block E1 with respect to a second data transmission direction, for example reception direction, for example with respect to a specific interface device, for example controllable by means of a remotely arranged LPI client (i.e., for example, by means of an LPI client of a communication partner),

[0112] E7: a control according to block E6, based on information that can be determined, for example, by a sensor itself (e.g. data from a temperature sensor, image data from a camera device),

[0113] E8: a control according to block E6, based on remotely available information, e.g. data, e.g. from sensors, which are exchangeable, e.g. receivable, via a network or an interface,

[0114] E9: a control according to block E6, based on, e.g., EEE-compatible or -compliant energy saving states, e.g. in the transmit direction.

[0115] Fig. 12 schematically shows a simplified block diagram of a communication system 1000a according to exemplary embodiments. Element E10 symbolizes a gateway. Elements E11a, E11b, E11c symbolize central control units (e.g., "central EC11(s)").

[0116] Elements E12a, E12b, E12c, and E12d symbolize, for example, sensor devices and / or actuators or other components associated with a high data rate, i.e., which, for example, at least temporarily transmit and / or receive data at a high data rate. Elements E13a, E13b, E13c, and E13d symbolize, for example, control units, e.g., zone control units (e.g., "zonal EC11(s)"). The elements collectively designated by reference numeral E14 symbolize sensors and / or actuators.

[0117] The principle according to the embodiments can be advantageously used in one or more components of the communication system 1000a, for example in the area of ​​the elements E11a, E11b, E11c, E12a, E12d, whereby in further exemplary embodiments an energy-efficient and at the same time high-performance data communication is ensured.

[0118] Further exemplary embodiments, Fig. 1, 13, relate to a communication system 1000, 1000a, for example for a vehicle 1 (Fig. 13), comprising at least one device 200 according to the embodiments (or a functionality corresponding to the device 200) and / or at least one interface module according to the embodiments and / or at least one network coupling element SW according to the embodiments and / or at least one module SM, SM', SM", ECU, ECU', ECU" according to the embodiments.

[0119] Further exemplary embodiments, Fig. 1, 13, relate to a vehicle 1 with at least one communication system 1000, 1000a according to the embodiments.

[0120] Further exemplary embodiments, Fig. 14, relate to a use 300 of the method according to the embodiments and / or the device 200 according to the embodiments and / or the interface module according to the embodiments and / or the network coupling element SW according to the embodiments and / or the module SM, SM', SM", ECU, ECU', ECU" according to the embodiments and / or the communication system 1000, 1000a according to the embodiments and / or the computer-readable storage medium SM according to the embodiments and / or the computer program PRG according to the embodiments and / or the data carrier signal DCS according to the embodiments for at least one of the following elements: a) Signaling 301 that the at least one component 20-2-K of the second interface device 20-2 is to be put into the energy-saving state, b) Using 302 low-power functions, for example an energy-saving state,of the at least one component of the second interface device, c) controlling 303 and / or regulating 304 low-power functions, for example an energy-saving state, of the at least one component of the second interface device, d) temperature control 305 of a module MOD having the second interface device 20-2, for example a sensor module SM, for example a camera module, e) power control 306 of a module MOD having the second interface device 20-2, for example a sensor module SM, for example a camera module, f) controlling 307 an electrical energy consumption of a module having the second interface device 20-2, g) integrating 308 modules MOD, for example sensor modules SM, for example sensor modules that are designed to output data at a comparatively high data rate, for example greater than 1000 Mbit / s, into a communication system 1000, 1000a,for example, an automotive Ethernet communication system, h) operating 309 sensor modules, for example of the RADAR and / or LIDAR type and / or camera type.,

Claims

Claims 1. Method, for example a computer-implemented method, for processing data associated with at least one interface device (20-1, 20-2), comprising: determining (100) first information (I-1) indicating whether at least one component (20-2-K) of a second interface device (20-2) configured for at least temporary data exchange (A1) with a first interface device (20-1) is to be put into a power-saving state (ZUST-LP), and, if the first information (I-1) indicates that the at least one component (20-2-K) of the second interface device (20-2) is to be put into the power-saving state (ZUST-LP), sending (102) a first command (B-1) to the second interface device (20-2), which signals to the second interface device (20-2) that the at least one component (20-2-K) of the second interface device (20-2) is to be put into the power-saving state (ZUST-LP). is to be moved.

2. Method according to claim 1, wherein the first command (B-1) of the second interface device (20-2) signals that the at least one component (20-2-K) of the second interface device (20-2) is to be put into the energy saving state (ZUST-LP) for a predefinable period of time.

3. A method according to at least one of the preceding claims, wherein the first interface device (20-1) and the second interface device (20-2) are each configured as an Ethernet interface device, for example an automotive Ethernet interface device, for example according to or based on at least one of the following standards: a) IEEE 802.3bp, b) IEEE 802.3ch, c) IEEE 802.3cy, d) IEEE 802.3cg.

4. A method according to at least one of the preceding claims, wherein the determination (100) of the first information (1-1) comprises at least one of the following elements: a) generating (100a) the first information (1-1), for example in the first interface device (20-1) or in a target system (ECU) comprising the first interface device (20-1), b) generating (100b) the first information (1-1) based on at least one operating parameter (20-2-BG) of the second interface device (20-2) or of a target system (MOD, SM) comprising the second interface device (20-2), wherein, for example, the operating parameter (20-2-BG) of the second interface device (20-2) is receivable from the first interface device (20-1) via a communication medium usable for data exchange (A1), c) receiving (100c) the first information (1-1) from the second interface device (20-2) and / or at least one further unit (20').

5. Method according to at least one of the preceding claims, comprising at least one of the following elements: a) Receiving (110) second information (I-2) from at least one further unit (20'), b) Forming (112) the first information (1-1) based on the second information (I-2), c) Transmitting (114) the first information (1-1) based on the second information (I-2).

6. Method according to at least one of the preceding claims, wherein the sending (102) comprises: sending (102a) a sleep signal to the second interface device (20-2), and, optionally, deactivating (102b) at least one component (20-1-K) of the first interface device (20-1) for a specified period of time.

7. Method according to at least one of the preceding claims, comprising: controlling (120) and / or regulating (122) an electrical power consumption (LA-EL) of the second interface device (20-2) and / or a temperature of the second interface device (20-2) or of a target system comprising the second interface device (20-2).

8. Method according to at least one of the preceding claims, comprising: specifying (130) a duty cycle (AZ) for the energy saving state (ZUST-LP) of the at least one component (20-2-K).

9. Device (20-1; 20-2; 200) for carrying out the method according to at least one of the preceding claims.

10. Interface module (SSB-PHY), for example PHY module, for an interface device (20-1 , 20-2), comprising at least one device (200) according to claim 9.

11. Network coupling element (SW), for example switch, for example automotive switch, comprising at least one device (20-1 ; 20-2; 200) according to claim 9 and / or at least one interface module (SSB-PHY) according to claim 10.

12. Module (MOD), for example sensor module (SM) and / or control unit (ECU), comprising at least one device (20-1; 20-2; 200) according to claim 9 and / or at least one interface module (SSB-PHY) according to claim 10 and / or at least one network coupling element (SW) according to claim 11.

13. Communication system (1000; 1000a), for example for a vehicle (1), comprising at least one device (20-1; 20-2; 200) according to claim 9 and / or at least one interface module (SSB-PHY) according to claim 10 and / or at least one network coupling element (SW) according to claim 11 and / or at least one module according to claim 12.

14. Computer-readable storage medium (SM) comprising instructions (PRG) which, when executed by a computer (202), cause it to execute the method according to at least one of claims 1 to 8.

15. Computer program (PRG) comprising instructions which, when the program (PRG) is executed by a computer (202), cause it to execute the method according to at least one of claims 1 to 8.

16. Data carrier signal (DCS) that transmits and / or characterizes the computer program (PRG) according to claim 15.

17. Use (300) of the method according to at least one of claims 1 to 8 and / or of the device (20-1 ; 20-2; 200) according to claim 9 and / or of the interface module according to claim 10 and / or of the network coupling element according to claim 11 and / or the module according to claim 12 and / or the communication system (1000) according to claim 13 and / or the computer-readable storage medium (SM) according to claim14 and / or the computer program (PRG) according to claim 15 and / or the data carrier signal (DCS) according to claim 16 for at least one of the following elements: a) signaling (301) that the at least one component (20-2-K) of the second interface device (20-2) is to be put into the power-saving state (ZUST-LP), b) using (302) low-power functions, for example a power-saving state, which includes at least one component (20-2-K) of the second interface device (20-2), c) controlling (303) and / or regulating (304) low-power functions, for example a power-saving state, which includes at least one component (20-2-K) of the second interface device (20-2), d) temperature control (305) of a module comprising the second interface device (20-2), for example a sensor module, for example a camera module, e) power control (306) of a module comprising the second interface device (20-2) Modules, for example sensor modules,for example, camera module; f) control (307) of the electrical energy consumption of a module having the second interface device (20-2); g) integration (308) of modules, for example, sensor modules, for example, sensor modules designed to output data at a comparatively high data rate, for example, greater than 1000 Mbit / s, into a communication system (1000; 1000a), for example, an automotive Ethernet communication system (1000; 1000a); h) operation (309) of sensor modules, for example, of the RADAR and / or LIDAR type.

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