Method and device for processing data associated with at least one interface device - Patents.com

Abstract

1. A 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 to at least temporarily exchange data with a first interface device should transition to an energy saving state; and, if the first information indicates that the at least one component of the second interface device should transition to the energy saving state, sending a first command to the second interface device signaling to the second interface device that the at least one component of the second interface device should transition to the energy saving state.

Description

[Technical field]

[0001] The present disclosure relates to a method, eg, a computer-implemented method, for processing data associated with at least one interface device. The present disclosure also relates to an apparatus for processing data associated with at least one interface device. Summary of the Invention [Means for solving the problem]

[0002] An exemplary embodiment relates to a method, e.g. a computer-implemented method, for processing data related to at least one interface device, comprising the steps of determining first information indicating whether at least one component of a second interface device configured for at least temporarily exchanging data with a first interface device should transition to an energy-saving state, and if the first information indicates that at least one component of the second interface device should transition to an energy-saving state, sending a first command to the second interface device, signaling to the second interface device that at least one component of the second interface device should transition to an energy-saving state. In a further exemplary embodiment, the method allows the operation of at least one component of the second interface device to be flexibly controlled with respect to the energy-saving state, e.g. by the first interface device or a target system of the first interface device. In a further exemplary embodiment, it is contemplated that, e.g. based on the first information and / or the first command, at least one component of the first interface device also transitions to an energy-saving state.

[0003] In a further exemplary embodiment, it is contemplated that if the first information indicates that at least one component of the second interface device should not, for example, transition to an energy saving state at the present time, the transmission of the first command to the second interface device is not executed, i.e., is aborted.

[0004] In a further exemplary embodiment, the energy saving state is characterized in that the power consumption and / or energy consumption in the energy saving state is lower than in a non-energy saving state, for example a normal operating state.

[0005] In a further exemplary embodiment, it may be provided that the second interface device can exchange data with the first interface device, for example in the sense of the data exchange already mentioned above, even when at least one of its components is in an energy-saving state. For example, the data rate, for example the maximum data rate, can be reduced in the energy-saving state compared to the normal operating state, which allows for example savings in terms of power consumption and / or energy consumption. For example, the data rate, for example the maximum data rate, achievable in the energy-saving state may be sufficient to exchange signals or information that can be used to synchronize the second interface device with the first interface device.

[0006] In further exemplary embodiments, the energy saving state is characterized in that, for example, the data rate of the energy saving state corresponds to the data rate of the normal operating state, but, for example, during the energy saving state, data transmission (e.g. at the normal data rate) takes place only during a predetermined first percentage (e.g. 10 percent) of a predetermined time interval ("operating cycle"), while no data transmission takes place during other percentages of the predetermined time interval, for example the remaining period (e.g. 90%) of the predetermined time interval. In further exemplary embodiments, this allows savings in terms of power consumption and / or energy consumption, for example averaged over the predetermined time interval.

[0007] In further exemplary embodiments, for example, the at least one component of the second interface device that can be at least temporarily put into the energy saving state may be, for example, an interface module, for example a PHY module, or a component of a PHY module, for example a transmitting device ("transmitter") of a PHY module. For example, the at least one component of the second interface device may be active during the energy saving state for the first percentage (for example, 10% of the predetermined time interval) and inactive during the second percentage (for example, 90% of the predetermined time interval).

[0008] In a further exemplary embodiment, it is contemplated that the first command of the second interface device signals that at least one component of the second interface device should transition to an energy saving state for a predetermined period of time.

[0009] In a further exemplary embodiment, it is contemplated that the first interface device and the second interface device are each configured as an Ethernet interface device, e.g. an in-vehicle Ethernet interface device, e.g. in accordance with 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.

[0010] In further exemplary embodiments, the principles according to the embodiments are applicable to other standards, for example other Ethernet standards than those mentioned above. In a further exemplary embodiment, it is contemplated that the component of the first and / or second interface device capable of transitioning to an energy saving state, e.g. based on a first command, is, for example, an interface module, e.g. a PHY module, or a component of a PHY module, e.g. a transmitting device and / or a receiving device.

[0011] In further exemplary embodiments, it is contemplated that determining the first information comprises at least one of the following elements: a) forming the first information, e.g. in the first interface device or in a target system (e.g. a control device) having the first interface device; b) forming the first information based on at least one operating quantity (e.g. temperature) of the second interface device or in the target system having the second interface device, e.g. the operating quantity of the second interface device being receivable by the first interface device via a communication medium used for data exchange; and c) receiving the first information from the second interface device (e.g. local formation of the first information in the second interface device is also conceivable in further exemplary embodiments).

[0012] In a further exemplary embodiment, it is contemplated 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 device or another control device); b) forming first information based on the second information; and c) transmitting the first information based on the second information.

[0013] In a further exemplary embodiment, it is contemplated that the transmission comprises a step of transmitting a sleep signal symbol to the second interface device and, optionally, a step of shutting down at least one component of the first interface device for a period or a predetermined period, so that for example the second interface device can put its receiving device into an energy saving state and the first interface device can put its transmitter, which is for example connected to a transmitting device of the second interface device, for example via a wired transmission medium, into an energy saving state.

[0014] In a further exemplary embodiment, the predetermined period of time is a period during which at least one component of the first interface device is in an energy saving state, such as a low power idle (LPI) state.

[0015] In further exemplary embodiments, the duty cycle or operation cycle of the energy saving state may be defined as, for example, a ratio between an active time (i.e. operation without energy saving state) and a predefined inactive period. In further exemplary embodiments, the duty cycle may be set by, for example, repeatedly transitioning at least one component of the first interface device into an energy saving state, for example a sleep mode (or LPI mode). Thereby, in further exemplary embodiments, an informed switching, as opposed to a conventional switching, between, for example, a "quiet" state and a "refresh" state within the LPI mode may be realized.

[0016] Generally, in further exemplary embodiments, at least one local component of a component executing a method of an embodiment (e.g., a first interface device) may transition to an energy saving state, at least temporarily, for example, if the method contemplates at least one component of a second interface device transitioning to an energy saving state.

[0017] In a further exemplary embodiment, it is contemplated that the method comprises a step of controlling and / or regulating the power consumption of the second interface device and / or the temperature of the second interface device or a target system having the second interface device, e.g. by transmitting the first information or the first command.

[0018] In a further exemplary embodiment, it is contemplated that the method comprises setting an operating cycle for an energy saving state of at least one component. A further exemplary embodiment relates to an apparatus for carrying out the method according to the embodiment.

[0019] A further exemplary embodiment relates to an interface module, for example a PHY module, for an interface device comprising at least one device according to an embodiment. Further exemplary embodiments relate to a network coupling element, such as a switch, such as an in-vehicle switch, comprising at least one device according to an embodiment and / or at least one interface module according to an embodiment.

[0020] Further exemplary embodiments relate to at least one device according to an embodiment, and / or at least one interface module according to an embodiment, and / or a module having at least one network coupling element according to an embodiment, such as a sensor module and / or a control device.

[0021] Further exemplary embodiments relate to a communication system, e.g. a communication system for a vehicle, having at least one device according to an embodiment, and / or at least one interface module according to an embodiment, and / or at least one network coupling element according to an embodiment, and / or at least one module according to an embodiment.

[0022] A further exemplary embodiment relates to a computer-readable storage medium comprising instructions that, when executed by a computer, cause the computer to perform a method according to an embodiment. A further exemplary embodiment relates to a computer program comprising instructions which, when said program is executed by a computer, cause the computer to carry out a method according to the embodiment.

[0023] Further exemplary embodiments relate to a data carrier signal carrying and / or characterizing a computer program according to the embodiments. Further exemplary embodiments include the steps of (a) signaling that at least one component of the second interface device should transition to an energy saving state; (b) using a low power function, e.g., an energy saving state, of at least one component of the second interface device; (c) controlling and / or regulating the low power function, e.g., an energy saving state, of at least one component of the second interface device; (d) temperature regulating a module, e.g., a sensor module, e.g., a camera module, comprising the second interface device; e) power regulating a module, e.g., a sensor module, e.g., a camera module, comprising the second interface device; f) regulating the electrical energy consumption of the module, comprising the second interface device; and g) signaling that at least one component of the second interface device should transition to an energy saving state, e.g., an energy saving state, of at least one component of the second interface device. a) integrating a module, e.g. a sensor module, configured to output data at a data rate of greater than 1000 Mbit / s, into a communication system, e.g. an in-vehicle Ethernet communication system; and b) operating the sensor module, e.g. a sensor module of RADAR type and / or LIDAR type and / or camera type, the method according to the embodiment and / or the device according to the embodiment and / or the interface module according to the embodiment and / or the network coupling element according to the embodiment and / or the module according to the embodiment and / or the communication system according to the embodiment and / or the computer readable storage medium according to the embodiment and / or the computer program according to the embodiment and / or the data carrier signal according to the embodiment for at least one of the elements of the present invention.

[0024] Further features, scope and advantages of the present invention are set out in the following description of the embodiments of the invention illustrated in the figures of the drawings. All features described or illustrated form the subject of the present invention individually or in any combination, regardless of their abstract or their reference relationship in the claims or regardless of their description or illustration in the specification or drawings. [Brief description of the drawings]

[0025] [Figure 1] FIG. 1 is a schematic diagram of a simplified flow diagram according to an exemplary embodiment. [Diagram 2] FIG. 1 is a schematic diagram of a simplified block diagram according to an exemplary embodiment. [Diagram 3] FIG. 1 is a schematic diagram of a simplified flow diagram according to an exemplary embodiment. [Figure 4] FIG. 1 is a schematic diagram of a simplified flow diagram according to an exemplary embodiment. [Diagram 5] FIG. 1 is a schematic diagram of a simplified flow diagram according to an exemplary embodiment. [Figure 6] FIG. 1 is a schematic diagram of a simplified block diagram according to an exemplary embodiment. [Figure 7] FIG. 1 is a schematic diagram of a simplified block diagram according to an exemplary embodiment. [Figure 8] FIG. 1 is a schematic diagram of a simplified block diagram according to an exemplary embodiment. [Figure 9] FIG. 1 is a schematic diagram of a simplified block diagram according to an exemplary embodiment. [Figure 10] FIG. 1 is a schematic diagram of a simplified block diagram according to an exemplary embodiment. [Figure 11] FIG. 1 is a schematic diagram of a simplified block diagram according to an exemplary embodiment. [Figure 12] FIG. 1 is a schematic diagram of a simplified block diagram according to an exemplary embodiment. [Figure 13] FIG. 1 is a schematic diagram of a simplified block diagram according to an exemplary embodiment. [Figure 14] 1 illustrates a schematic manner of use according to an exemplary embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] An exemplary embodiment, FIG. 1, relates to a method, e.g. a computer-implemented method, for processing data related to at least one interface device 20-1, 20-2 (FIG. 2), comprising the steps of determining (100) first information I-1 indicating whether at least one component 20-2-K (FIG. 2) of a second interface device 20-2 configured to at least temporarily exchange data with the first interface device 20-1 should transition to an energy-saving state (FIG. 1), and, if the first information I-1 indicates that the at least one component 20-2-K of the second interface device 20-2 should transition to an energy-saving state, sending (102) a first command B-1 to the second interface device 20-2 signaling to the second interface device 20-2 that the at least one component 20-2-K of the second interface device 20-2 should transition to an energy-saving state (FIG. 1). In a further exemplary embodiment, the method may allow the operation of at least one component 20-2-K of the second interface device 20-2 to be flexibly controlled with respect to an energy saving state, for example by the first interface device 20-1 or a target system of the first interface device 20-1 (e.g. a control device (not shown) having the first interface device 20-1).

[0027] In a further exemplary embodiment, the first information may be represented, for example, by at least one bit, for example a bit flag. In a further exemplary embodiment, it is contemplated that, for example, at least one component 20-1-K of the first interface device 20-1 may also transition to an energy saving state, for example based on the first information I-1 and / or the first command B-1.

[0028] In a further exemplary embodiment, it is contemplated that if the first information I-1 indicates that at least one component 20-2-K of the second interface device 20-2, for example, should not transition to an energy saving state at the present time, the transmission 102 (FIG. 1) of the first command B-1 to the second interface device 20-2 is not executed, i.e., is aborted.

[0029] In a further exemplary embodiment, the energy saving state is characterized in that the power consumption and / or energy consumption (e.g., of each component 20-1-K, 20-2-K) in the energy saving state (e.g., averaged over a predetermined time interval) is lower than outside the energy saving state, e.g., a normal operating state.

[0030] In a further exemplary embodiment, in Fig. 2, it may be provided that the second interface device 20-2 can exchange data with the first interface device 20-1, for example in the sense of the data exchange A1 already mentioned above, even when at least one of its components 20-2-K is in an energy-saving state. For example, the data rate, for example the maximum data rate, can be reduced in the energy-saving state compared to the normal operating state, which allows for saving, for example, in terms of power consumption and / or energy consumption. For example, the data rate, for example the maximum data rate, achievable in the energy-saving state may be sufficient to exchange signals or information that can be used to synchronize the second interface device with the first interface device.

[0031] In further exemplary embodiments, the energy saving state is characterized in that, for example, the data rate of the energy saving state corresponds to the data rate of the normal operating state, but, for example, during the energy saving state, data transmission (e.g. at the normal data rate) takes place only during a predetermined first percentage (e.g. 10 percent) of a predetermined time interval ("operating cycle"), while no data transmission takes place during other percentages of the predetermined time interval, for example the remaining period (e.g. 90%) of the predetermined time interval. In further exemplary embodiments, this allows savings in terms of power consumption and / or energy consumption, for example averaged over the predetermined time interval.

[0032] 2, for example, the at least one component 20-2-K of the second interface device 20-2 that can be at least temporarily put into the energy saving state may be, for example, an interface module, for example a PHY module, or a component of a PHY module, for example a transmitting device ("transmitter") of a PHY module. For example, the at least one component 20-2-K of the second interface device 20-2 may be active during the above-mentioned first percentage (for example, 10% of the predetermined time interval) and inactive during the above-mentioned second percentage (for example, 90% of the predetermined time interval) during the energy saving state.

[0033] In a further exemplary embodiment, FIG. 1, it is contemplated that the first command B-1 of the second interface device 20-2 signals that at least one component 20-2-K of the second interface device 20-2 should transition to an energy saving state for a predetermined period of time.

[0034] In a further exemplary embodiment, it is contemplated that the first interface device 20-1 and the second interface device 20-2 are each configured as an Ethernet interface device, e.g. an in-vehicle Ethernet interface device, e.g. in accordance with 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.

[0035] In a further exemplary embodiment, it is contemplated that the components 20-1-K, 20-2-K of the first and / or second interface devices 20-1, 20-2 that can transition to an energy saving state based on, for example, the first command B-1 are, for example, interface modules, for example PHY modules, or components of a PHY module, for example a transmitting device and / or a receiving device.

[0036] In a further exemplary embodiment, in FIG. 1 , the determination 100 of the first information I-1 comprises the steps of a) forming 100a the first information I-1, for example in the first interface device 20-1 or in a target system (for example a control device ECU) having the first interface device, and b) forming 100b the first information I-1 on the basis of at least one operating quantity (for example a temperature) 20-2-BG of the second interface device 20-2 or in the target system MOD, SM having the second interface device 20-2, for example the operating quantity 20-2-BG of the second interface device 20-2 being determined by a communication medium available for the data exchange A1 (for example a wired Ethernet data connection, for example a twisted pair data transmission cable). and c) a step of receiving 100c the first information I-1 from the second interface device 20-2 (local formation of the first information I-1, for example in the second interface device 20-2 or in the module MOD or the sensor module SM, is also conceivable in further exemplary embodiments) and / or from at least one other unit 20' (e.g. another control device), for example via a data connection (wired and / or wireless) other than the data connection usable for the data exchange A1 and / or via a data connection usable for the data exchange A1.

[0037] In a further exemplary embodiment, FIG. 3, it is contemplated 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 quantities of, e.g., another control device or a target system, e.g. a vehicle) from at least one further unit 20′ (FIG. 2) (e.g. from the control device or another control device); b) forming 112 first information I-1 based on the second information I-2 (FIG. 3); and c) transmitting 114 the first information I-1 based on the second information I-2, e.g. to the second interface device 20-2, 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.

[0038] In a further exemplary embodiment, Fig. 3, it is contemplated that the transmission 114 comprises a transmission 114a of a sleep signal to the second interface device 20-2 (Fig. 2) and, optionally, a stop 114b (Fig. 3) for a certain or predetermined period of time of at least one component 20-1-K (Fig. 2) of the first interface device 20-1. This allows, for example, the second interface device 20-2 to transition its receiving device into an energy-saving state, and the first interface device 20-1 to transition its transmitter (not shown in Fig. 2, see for example Fig. 7 for details), which is connected, for example, via a wired transmission medium to a transmitting device of the second interface device 20-2, into an energy-saving state.

[0039] Generally, in further exemplary embodiments, at least one local component 20-1-K of the component (e.g. the first interface device) 20-1 executing the method according to the embodiment may at least temporarily transition to an energy saving state, for example if the method contemplates at least one component 20-2-K of the second interface device 20-2 transitioning to an energy saving state. In further exemplary embodiments, this also applies when e.g. an EEE compatible signal is not used or is unavailable, for example for signaling the first information I-1 and / or the first command B-1.

[0040] In a further exemplary embodiment, FIG. 4, it is contemplated that the method comprises a step of controlling 120 and / or regulating 122 the power consumption LA-EL of the second interface device 20-2 and / or the temperature 20-2-TEMP, MOD-TEMP (FIG. 2) of the second interface device 20-2 and / or of the target system having the second interface device 20-2, e.g. a module MOD, e.g. a sensor module SM, by transmitting 102, e.g. the first information I-1 and / or the first command B-1.

[0041] In a further exemplary embodiment, FIG. 5, it is contemplated that the method comprises a step of setting 130 an operating cycle AZ for an energy saving state of at least one component 20-1-K, 20-2-K.

[0042] A further exemplary embodiment, FIG. 6, relates to an apparatus 200 for carrying out a method according to an embodiment. In a further exemplary embodiment, it is contemplated that the apparatus 200 comprises a computing device ("computer") 202 having at least one computing core 202a and a memory device 204 associated with the computing device 202 for at least temporarily storing at least one of the elements of: a) data DAT (e.g. data characterizing the first and / or second information I-1, I-2); and b) a computer program PRG, e.g. for performing the method according to the embodiment.

[0043] In a further exemplary embodiment, the memory device 204 comprises a volatile memory (e.g., working memory (RAM)) 204a, and / or a non-volatile (NVM) memory (e.g., flash EEPROM) 204b, or a combination thereof, or other types of memory not expressly stated.

[0044] A further exemplary embodiment relates to a computer-readable storage medium SM comprising instructions PRG which, when executed by a computer 202, cause the computer 202 to carry out a method according to an embodiment.

[0045] A further exemplary embodiment relates to a computer program PRG comprising instructions which, when said program PRG is executed by the computer 202, cause the computer 202 to carry out a method according to an embodiment.

[0046] A further exemplary embodiment relates to a data carrier signal DCS characterizing and / or transmitting a computer program PRG according to an embodiment. The data carrier signal DCS can for example be received via an optional data interface 206 of the device 200, which may for example be related to a data exchange A1 (FIG. 2) and may for example have a first interface device 20-1. Similarly, for example the first and / or second information I-1, I-2 or data characterizing them can be transmitted (for example sent and / or received) via the optional data interface 206. In a further exemplary embodiment, communication, for example data communication, with at least one further unit 20′ (FIG. 2) may take place via the optional data interface 206.

[0047] A further exemplary embodiment, Fig. 7, relates to an interface module having at least one device 200 according to an embodiment or functionality of the device 200, e.g. a PHY module, SSB-PHY-B, for an interface device B. Fig. 7 exemplarily illustrates an arrangement for an Ethernet data connection between a first Ethernet interface device A and a second Ethernet interface device B.

[0048] It should be noted that in the schematic illustration according to Fig. 7, the dashed block 200 is merely symbolically located within the PHY modules SSB-PHY-A, SSB-PHY-B, for example to represent that in some exemplary embodiments the PHY modules SSB-PHY-A, SSB-PHY-B realize or implement at least some aspects of the functionality of the device 200. In further exemplary embodiments, at least some functional and / or structural aspects of the block 200 may also be located outside the PHY modules SSB-PHY-A, SSB-PHY-B, for example at least temporarily acting on the PHY modules SSB-PHY-A, SSB-PHY-B (and / or on other components of the elements A, B).

[0049] The first Ethernet interface device A comprises the above-mentioned PHY module SSB-PHY-A, may have aspects of the device 200 and may be configured to perform at least some aspects of the method according to the embodiment. Furthermore, the first Ethernet interface device A comprises, for example, in this embodiment, an optional arbitration sublayer RS-A that establishes a connection between the PHY module SSB-PHY-A, the MAC (Medium Access Control) device MAC-A and, optionally, the LPI client LPI-A. The double arrow A-A1 represents an optional data connection of the MAC device MAC-A to data sources and / or data sinks, not shown in Fig. 7 for clarity, for example comprising or associated with at least one of the following elements: a) a microprocessor (for example of a control device), b) a microcontroller (for example of a control device), c) a sensor, d) a network coupling element, for example a switch.

[0050] The second Ethernet interface device B comprises a PHY module SSB-PHY-B in a manner similar to the first Ethernet interface device A, which may, for example, optionally comprise the aspects of the device 200 and may be configured to perform at least some aspects of the method according to the embodiment, but does not necessarily have the aspects 200 of the device 200 and is not necessarily configured to perform at least some aspects of the method according to the embodiment. Furthermore, the second Ethernet interface device B comprises, for example, in this embodiment, an optional arbitration sublayer RS-B which establishes a connection between the PHY module SSB-PHY-B, the MAC device MAC-B and optionally the LPI client LPI-B. The double arrow B-A1 represents an optional data connection of the MAC device MAC-B to a data source and / or data sink, not shown in FIG. 7 for clarity, e.g., having or associated with at least one of the following elements: a) a microprocessor (e.g., of a control device); b) a microcontroller (e.g., of a control device); c) a sensor; d) a network coupling element, e.g., a switch.

[0051] In a further exemplary embodiment, for example, at least one of the LPI clients LPI-A, LPI-B may have aspects of the apparatus 200 and may be configured to perform at least some aspects of the method according to the embodiment.

[0052] In further exemplary embodiments, the LPI clients LPI-A, LPI-B may for example be integrated or implemented in the respective MAC devices MAC-A, MAC-B, see also the dotted lines surrounding the elements MAC-A, LPI-A or MAC-B, LPI-B respectively.

[0053] In a further exemplary embodiment, the LPI clients LPI-A, LPI-B may exchange signals of type "LP_IDLE.indication", for example in the sense of a first information I-1 (Figure 1) or a first command B-1.

[0054] In a further exemplary embodiment, two PHY modules SSB-PHY-A, SSB-PHY-B are configured as a master-slave tuple and convert received data from a MAC layer, e.g., a MAC device MAC-A, MAC-B, respectively, into a physical signal, e.g., a modulated voltage level (signal) on a transmission medium MED, and vice versa.

[0055] In further exemplary embodiments, full-duplex operation is contemplated, for example at all times, which means that both PHY modules SSB-PHY-A, SSB-PHY-B transmit and / or receive at a maximum predefined data rate of 10 Mbps (100 Mbps 100BASE-T, 1 Gbps 1GBASE-T1, 2.5 / 5 / 10 Gbps MGBASE-T1), for example according to a standard-based definition.

[0056] The PHY module SSB-PHY-A has for this purpose a transmitting device ("transmitter") TA and a receiving device ("receiver") RA. The PHY module SSB-PHY-B has for this purpose a transmitting device ("transmitter") TB and a receiving device ("receiver") RB. As can be seen in Figure 7, the transmitter TA is connected to the receiver RB, and the transmitter TB is connected to the receiver RA.

[0057] In a further exemplary embodiment, the PHY modules SSB-PHY-A, SSB-PHY-B generate, for example, pseudo-random data to be transmitted by the transmitters TA, TB, for example, when there is no data to be transmitted from the MAC layer via the medium MED, resulting in a corresponding, for example, maximum power consumption, despite there being no data currently transmitted from the MAC layer or whether there is data to be transmitted from the MAC layer or not. In a further exemplary embodiment, the same applies to the receivers RA, RB, which implement, for example, hybrid (digital and analog) signal processing with echo suppression, adaptive equalization (for example equalization), etc.

[0058] In further exemplary embodiments, aspects of, for example, Energy Efficient Ethernet (EEE), as standardized, may be implemented to reduce power consumption, for example when there is no data to be transmitted from the MAC layer. In further exemplary embodiments, logic may be implemented for this, for example by the LPI clients LPI-A, LPI-B. For example, the LPI clients LPI-A, LPI-B may send a so-called idle request (for example of type "assert" or "deassert") to the respective connection partner.

[0059] In a further exemplary embodiment, for example, the LPI client LPI-B shown on the left side of Fig. 7 may send, via the optional arbitration sublayer RS-B and the PHY module SSB-PHY-B, a LP_IDLE.indication (assert) command to the Ethernet interface device A, which finds out that the connection to RA or the link TB (i.e. the data connection between the transmitter TB and the receiver RA) is to take an energy saving state, for example "low power idle operation", for example for a predefined period of time. During this period, the PHY module SSB-PHY-B may shut down its transmitter TB and the connection partner SSB-PHY-A may shut down its receiver RA, thereby saving electrical energy. In further exemplary embodiments, the components TB, RA may be temporarily activated, e.g. for a short time each (see operating cycle already mentioned above), e.g. to maintain synchronization of the two PHY modules SSB-PHY-A, SSB-PHY-B and / or to enable the transmission of information related to the energy saving state or to the exit of the energy saving state, e.g. a so-called "LP_IDLE.indication(deassert)" command, which is used to transition the link TB, RA from the energy saving state, e.g. to a normal operating state in which the two components TB, RA are permanently activated (e.g. different from the energy saving state) and, e.g., capable of transmitting data at a maximum data rate, again.

[0060] In further exemplary embodiments, the methods exemplarily described above with reference to links TB, RA may also be applied to links TA, RB, for example alternatively or additionally. In further exemplary embodiments, aspects, e.g., methods or protocols, of the EEE-related parts of the Ethernet standard may be used to at least temporarily control 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 I-1 and / or by the first command B-1.

[0061] In further exemplary embodiments, the principles according to the embodiments may be used to provide an energy-efficient communication or communication system 1000 for applications performing information transfer from / to a module MOD (FIG. 2), e.g. a sensor module SM. For example, the sensor module may have at least one of the following elements: a camera, a RADAR sensor, a LIDAR sensor, an actuator (e.g. a projected light of an LED emitter or a LASER emitter modulating light waves in the sense of a transmitter, for example, to transmit information to a remote receiver (e.g. based on visible light communication (VLC), optical wireless communication (OWC), a display, etc.). For example, a data source and / or sink for applying the principles according to the embodiments may have at least one of the following elements: a control device, e.g. an ECU, an on-board computer, e.g. a vehicle computer, a sensor hub, a zone control device (zone ECU), etc., in addition to the modules exemplarily mentioned above, e.g. a sensor module.

[0062] 8 illustrates a simplified block diagram of an exemplary embodiment, where aspects of the exemplary embodiment can be used to regulate, e.g., perform closed-loop control of, an operating quantity, e.g., temperature, of the sensor module SM. For example, temperature regulation can be used to regulate the power dissipated by the sensor module SM or at least one component thereof, for proper operation of the sensor module SM, e.g., to comply with thermal boundary conditions specified by a design or layout.

[0063] The control device ECU has a first PHY module SSB-PHY-1 that is at least temporarily configured to perform at least some aspects of the principles according to the embodiments. This is represented by way of example in FIG. 8 by a representation of the device 200 in the area of ​​the control device ECU. In some embodiments, for example, the device 200 may be at least partially integrated in the ECU. However, in some further embodiments, for example, at least a part of the functionality of the device 200 may also be integrated in at least one other component of the control device ECU, for example the first PHY module SSB-PHY-1, i.e. the device 200 is not structurally integrated in the control device ECU as are the functions of the device 200.

[0064] The elements SSB-PHY-2, ..., SSB-PHY-n represent further PHY modules that may be provided in the control unit ECU in further exemplary embodiments. The elements MAC-1, MAC-2, ..., MAC-n represent MAC devices associated with respective PHY modules of the control unit ECU according to further exemplary embodiments, for example. The element SW-CORE represents a switch core, e.g. with a coupling network, associated with the MAC devices MAC-1, MAC-2, ..., MAC-n. The element LPI-1 represents an optional LPI client. The element CTRL represents an optional control unit, e.g. configured to perform aspects of the method according to embodiments. The element RS-ECU represents an optional arbitration sublayer.

[0065] The element SSB-PHY-SM represents a PHY module of the sensor module SM, to which a control device CTRL-SM may optionally be associated. The element RS-SM represents an optional arbitration sublayer of the sensor module SM. The element MAC-SM represents a MAC device of the sensor module SM. The element LPI-2 represents an optional LPI client of the sensor module SM. The element BR represents an optional bridge device of the sensor module SM. The element CTRL-SM' represents an optional further control device of the sensor module SM. The element SENS represents a sensor unit of the sensor module SM, such as a digital image sensor and / or a RADAR device and / or a LIDAR device.

[0066] 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 sends a first command B-1 (see also FIG. 1) to the sensor module SM via the communication connection MED, for example requesting the sensor module SM to transition at least one of its components (for example a receiver (not shown in FIG. 8, see for example element RB according to FIG. 7)) into an energy-saving state. For this, in some embodiments it may be sufficient for the sensor module SM to operate in an EEE-compliant manner, but it is not necessary for the sensor module SM to execute aspects according to exemplary embodiments, since these are exemplarily executed in the domain of the control unit ECU.

[0067] In a further exemplary embodiment, the control unit ECU may receive information characterizing a temperature measurement value of the temperature sensor (see, for example, the second information I-2 described above) via the communication connection MED and, based on this, may determine whether at least one component of the sensor module SM should transition to an energy saving state, for example if the temperature measurement value indicates that a predetermined maximum temperature has been exceeded.

[0068] In a further exemplary embodiment, a chain reaction is possible, for example according to arrow a1, from the temperature sensor TS of the sensor module SM to the control device CTRL of the control device ECU for transmitting information characterizing the temperature measurement value. For example, if a predefined maximum temperature is exceeded, the control device CTRL can act on the LPI client LPI-1, for example, to cause the sensor module SM to assume an energy saving state (for example for at least one component of the sensor module SM). In a further exemplary embodiment, a chain reaction is possible, for example according to arrow a2, from the control device CTRL of the control device ECU to the control device CTRL-SM of the PHY module SSB-PHY-SM.

[0069] In a further exemplary embodiment, the control device CTRL may configure the LPI client LPI-1 to adjust the operating cycle for the energy saving state of the PHY module SSB-PHY-SM of the sensor module SM such that the power consumption of the PHY module SSB-PHY-SM is reduced until a thermal boundary condition of the sensor module SM is met again, e.g., until the temperature falls below a predetermined maximum temperature of the sensor module SM.

[0070] In further exemplary embodiments, the principles exemplarily described above may be applied to the PHY module SSB-PHY-1 of the control device ECU, e.g. independently of the above-described configuration and e.g. the direction of data flow, where e.g. at least some aspects of the exemplary embodiments are implemented, e.g., in the control device CTRL-SM.

[0071] In a further exemplary embodiment, arrow a3 in FIG. 8 represents a possible path of sensor data, as can for example be provided by a sensor unit SENS of the sensor module SM.

[0072] Fig. 9 shows a simplified block diagram according to a further exemplary embodiment, similar to Fig. 8, a control unit ECU' and a sensor module SM' are shown, which have mostly similar or identical components to the control unit ECU and the sensor module SM according to Fig. 8.

[0073] In further exemplary embodiments, when no temperature information is available in the area of ​​the sensor module, as is the case for example with a sensor module SM′ according to FIG. 9, an energy saving state or an operating cycle for an energy saving state may be initiated or controlled or adjusted based on sensor data of, for example, the sensor device SENS of the sensor module SM′ or based on data derivable therefrom.

[0074] For example, in the sensor module SM' according to Fig. 9, the sensor device SENS may be configured as a camera with, for example, a digital image sensor. In a further exemplary embodiment, the effective data rate of the camera SENS may be adjusted, for example throttled, to a predefined level by relatively frequently activating an energy saving state of at least one component of the PHY module SSB-PHY-SM', for example via an LPI client LPI-1 of the control device ECU', for example based on data calculated by a signal processor SP, for example an image data signal processor ISP, of the control device ECU', for example based on sensor data received from the sensor module SM' (see arrow a4). Optionally, the received sensor data may be processed, for example, by a processor PROC and / or an image data signal processor ISP of the control device ECU'. On this basis, for example the LPI client LPI-1 may be controlled, for example according to arrow a5, to activate an energy saving state of at least one component of the PHY module SSB-PHY-SM'. Throttling of the effective data rate, for example based on repeated enabling of an energy saving state of at least one component of the PHY module SSB-PHY-SM', may be performed in further exemplary embodiments, for example if evaluation of the sensor data indicates that, for example, the image content characterized by the sensor data does not change or does not change significantly (above a predefined threshold). If a change in the image content, for example a significant change, is recognized, the energy saving state may be disabled, for example also using the LPI client LPI-1.

[0075] Fig. 10 shows a simplified block diagram according to a further exemplary embodiment in a schematic way. As in Fig. 9, a control unit ECU'' and a sensor module SM'' are shown, which have largely similar or identical components to the control unit ECU'' and the sensor module SM'' according to Fig. 9. As in Fig. 9, the arrow a4 in Fig. 10 represents the data flow of the sensor data received from 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 arrangement according to Fig. 10, the sensor data of the sensor module SM'' received by the control unit ECU'' is forwarded via the PHY module SSB-PHY-n to, for example, another unit not shown (for example a central network element of a communication network also having the elements ECU'', SM''). Arrow a6 represents a data connection of the control unit ECU" to further units (also not shown), e.g. via a CAN bus, element a6' represents a CAN transceiver, which is e.g. directly connected to the processor PROC, and arrow a7 represents a control, e.g. of the control unit CTRL, based on data received by the control unit ECU" or the processor PROC via the CAN bus a6. The control a7 can, for example, act on the LPI client LPI-1 to put at least one component of the sensor module SM" at least temporarily into an energy-saving state, e.g. based on data received by the control unit ECU" or the processor PROC via the CAN bus a6 (see arrow a8 according to FIG. 10).

[0076] In a further exemplary embodiment, using the configuration exemplarily described above with reference to FIG. 10, the processor PROC of the control unit ECU'' may control and / or regulate the power consumption and / or energy consumption of the PHY module SSB-PHY-SM'' (and thus, at least indirectly, e.g. the temperature of the PHY module SSB-PHY-SM'' or the sensor module SM'') based on RADAR detection signaled, e.g. via the CAN bus (e.g. from a RADAR sensor device not shown) ("cross-protocol information").

[0077] In further exemplary embodiments, other information ("peripheral information"), e.g. related to the periphery of the control unit ECU" may also be used 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 at least temporarily go into an energy-saving state and / or to determine, e.g. a respective operating cycle ("duty cycle") of the energy-saving state. Information of one or more other units 20" that are not connected to the control unit ECU" using, e.g., Ethernet, e.g. automotive Ethernet, e.g. devices or sensor modules, e.g. sensor information, e.g. in the sense of the first information I-1 or the first command B-1 (see FIG. 1 ), may also be used to control an energy-saving state for the sensor module SM" and / or at least one component of the control unit ECU", e.g. the sensor module SM" and / or at least one component of the control unit ECU".

[0078] For example, the element 20" according to Fig. 10 can represent a sensor which is connected to the control unit ECU" via a serial interface SPI. The sensor 20" supplies sensor data (not shown) via the serial interface SPI to the control unit ECU", for example in the sense of the second information I-2 exemplarily described above with reference to Fig. 3, which control unit ECU" controls, based on the sensor data received from the sensor 20" via the SPI interface, for example an energy-saving state or an operating cycle for an energy-saving state for the sensor module SM" and / or at least one component of the control unit ECU". In further exemplary embodiments, the sensor module SM″ and the PHY modules SSB-PHY-SM′, SSB-PHY-1′, ... of the control unit ECU″ may enter an energy saving state, e.g. for a relatively long time, based on sensor data obtained from the sensor 20″ via an SPI interface, and may be activated again, e.g. on an event basis, e.g. when the sensor data received from the sensor 20″ via the SPI interface characterizes an event which causes the sensor module SM″ and the PHY modules SSB-PHY-SM′, SSB-PHY-1′, ... of the control unit ECU″ to return from the energy saving state when a corresponding event occurs.

[0079] Further exemplary embodiments, Figures 9, 10, relate to a network coupling element, e.g. a switch SW, e.g. an on-board switch SW, having at least one device 200 according to an embodiment (or functionality corresponding to the device 200) and / or at least one interface module SSB-PYH-1, SSB-PHY-1' according to an embodiment. 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 elements SSB-PHY-1', LPI-1, CTRL, PROC (or in further exemplary embodiments any combination thereof) of a control device ECU' according to Figure 10.

[0080] Further exemplary embodiments, for example with reference to Figures 8, 9 and 10, relate to modules such as sensor modules SM, SM', SM" and / or control devices ECU, ECU', ECU", having at least one device according to an embodiment (or functionality corresponding to device 200) and / or at least one interface module according to an embodiment and / or at least one network coupling element SW according to an embodiment.

[0081] 11 shows a simplified block diagram of an exemplary embodiment. Blocks E1 to E9 represent exemplary aspects or variants of the principles according to the embodiment as may be envisaged in further exemplary embodiments. In detail, these blocks represent:

[0082] E1: For example, from different areas (for example, from sensor modules SM, SM', SM'' connected via Ethernet, for example, automotive Ethernet, from control devices ECU, ECU', ECU'' that execute processes, for example, via CAN or other bus systems, or SPI, LIN, FlexRay, I, etc., using, for example, aspects of EEE (Energy Efficient Ethernet) 2 Control of an energy-saving state of at least one component 20-1-K, 20-2-K of at least one interface device 20-1, 20-2 based on information that may come from a control device ECU, ECU', further units connected to the ECU'', e.g. a sensor device 20'', which executes a process via a control device ECU, ECU', ECU', etc.

[0083] E2: Control over block E1, for example regarding a first data transmission direction, e.g. a send direction, e.g. related to a particular interface device, controllable by a local LPI client.

[0084] E3: Control over block E2, eg based on EEE compatible or EEE compliant energy saving state, eg in receive direction. E4: Control over block E2 based on locally available information, e.g. data from a temperature sensor, image data from a camera device.

[0085] E5: Control over block E2 based on remotely available information, for example data from a sensor, that can be exchanged, for example received, via a network or interface.

[0086] E6: Control over block E1 in a second data transmission direction, e.g. the receive direction, e.g. in relation to a specific interface device, e.g. controllable by a remotely located LPI client (e.g. an LPI client of a communication partner). E7: Control over block E6, for example based on information determinable by the sensor itself (eg data from a temperature sensor, image data from a camera device).

[0087] E8: Control over block E6 based on remotely available information, for example data from a sensor, that can be exchanged, for example received, via a network or an interface.

[0088] E9: Control over block E6, for example based on an EEE-compatible or EEE-compliant energy saving state, for example in the transmission direction. FIG. 12 illustrates a simplified block diagram of a communication system 1000a according to an exemplary embodiment. Element E10 represents an exemplary gateway. Elements E11a, E11b, E11c represent exemplary central control devices (e.g., "Central ECU"). Elements E12a, E12b, E12c, E12d represent exemplary sensor devices and / or actuators or other components related to high data rates, e.g., components that transmit and / or receive data at at least temporarily high data rates. Elements E13a, E13b, E13c, E13d represent exemplary control devices, e.g., zone control devices (e.g., "Zone ECU"). Elements collectively indicated by reference sign E14 represent sensors and / or actuators.

[0089] The principles according to the embodiments can be advantageously used in one or more components of the communication system 1000a, for example in the area of ​​elements E11a, E11b, E11c, E12a, ..., E12d, thereby ensuring, in further exemplary embodiments, energy-efficient and at the same time high-performance data communication.

[0090] Further exemplary embodiments, Figures 1, 13, relate to a communication system 1000, 1000a (Figure 13), for example for a vehicle 1, having at least one device 200 according to an embodiment (or functionality corresponding to device 200) and / or at least one interface module according to an embodiment and / or at least one network coupling element SW according to an embodiment and / or at least one module SM, SM', SM'', ECU, ECU', ECU'' according to an embodiment.

[0091] Further exemplary embodiments, Fig. 1, Fig. 13, relate to a vehicle 1 equipped with at least one communication system 1000, 1000a according to an embodiment. A further exemplary embodiment, FIG. 14, shows a method for implementing the method of the present invention, comprising the steps of (a) signaling 301 that at least one component 20-2-K of the second interface device 20-2 should enter an energy saving state; (b) using 302 a low power function, e.g. an energy saving state, of at least one component of the second interface device; (c) controlling 303 and / or adjusting 304 the low power function, e.g. an energy saving state, of at least one component of the second interface device; (d) adjusting 305 the temperature of a module MOD, e.g. a sensor module SM, e.g. a camera module, comprising the second interface device 20-2; (e) adjusting 306 the power of a module MOD, e.g. a sensor module SM, e.g. a camera module, comprising the second interface device 20-2; (f) adjusting 307 the electrical energy consumption of a module comprising the second interface device 20-2; and (g) adjusting 308 the power of a module MOD, e.g. a sensor module SM, e.g. a camera module, comprising the second interface device 20-2, comprising a relatively high data rate, e.g. a) integrating 308 a module MOD, e.g. a sensor module SM, configured to output data at a data rate higher than 0 Mbit / s, into a communication system 1000, 1000a, e.g. an in-vehicle Ethernet communication system, and h) operating 309 the sensor module, e.g. a sensor module of RADAR type and / or LIDAR type and / or camera type,

Claims

1. A method, e.g. 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) indicative of 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) should transition to an energy saving state (ZUST-LP); sending (102) a first command (B-1) to the second interface device (20-2) signaling to the second interface device (20-2) that the at least one component (20-2-K) of the second interface device (20-2) should transition to the energy saving state (ZUST-LP) if the first information (I-1) indicates that the at least one component (20-2-K) of the second interface device (20-2) should transition to the energy saving state (ZUST-LP); A method comprising:

2. 2. The method of 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) should transition to the energy saving state (ZUST-LP) for a predetermined period of time.

3. 3. The method according to claim 1 or 2, wherein the first interface device (20-1) and the second interface device (20-2) are each configured as an Ethernet interface device, e.g. an automotive Ethernet interface device, e.g. 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.

4. said determination (100) of said first information (I-1) a) forming (100a) said first information (I-1), for example in said first interface device (20-1) or in a target system (ECU) comprising said first interface device (20-1); b) forming (100b) said first information (I-1) on the basis of at least one operating quantity (20-2-BG) of said second interface device (20-2) or of a target system (MOD, SM) having said second interface device (20-2), for example said operating quantity (20-2-BG) of said second interface device (20-2) being receivable by said first interface device (20-1) via a communication medium used for said data exchange (A1); c) receiving (100c) said first information (I-1) from said second interface device (20-2) and / or from at least one further unit (20'); The method according to any one of claims 1 to 3, comprising at least one of the following elements:

5. a) receiving (110) second information (I-2) from at least one further unit (20'); b) forming (112) said first information (I-1) based on said second information (I-2); c) transmitting (114) said first information (I-1) based on said second information (I-2); The method according to any one of claims 1 to 4, comprising at least one of the following elements:

6. the transmitting (102) transmitting (102a) a sleep signal to the second interface device (20-2); Optionally, shutting down (102b) at least one component (20-1-K) of said first interface device (20-1) for a period or a predetermined period of time; The method according to any one of claims 1 to 5, comprising:

7. The method according to any one of claims 1 to 6, further comprising the step of controlling (120) and / or regulating (122) a power consumption (LA-EL) of said second interface device (20-2) and / or a temperature of said second interface device (20-2) or a target system comprising said second interface device (20-2).

8. The method according to any one of claims 1 to 7, comprising the step of setting (130) an operating cycle (AZ) for the energy saving state (ZUST-LP) of the at least one component (20-2-K).

9. Apparatus (20-1; 20-2; 200) for carrying out the method according to any one of the claims 1 to 8.

10. An interface module (SSB-PHY), e.g. a PHY module, for an interface device (20-1, 20-2) comprising an apparatus (200) according to claim 9.

11. A network coupling element (SW), such as a switch, such as an on-board switch, comprising an apparatus (20-1; 20-2; 200) according to claim 9 and / or an interface module (SSB-PHY) according to claim 10.

12. A module (MOD), such as a sensor module (SM) and / or a control unit (ECU), comprising a device (20-1; 20-2; 200) according to claim 9 and / or an interface module (SSB-PHY) according to claim 10 and / or a network coupling element (SW) according to claim 11.

13. A communication system (1000; 1000a), e.g. a communication system for a vehicle (1), comprising an apparatus (20-1; 20-2; 200) according to claim 9, and / or an interface module (SSB-PHY) according to claim 10, and / or a network coupling element (SW) according to claim 11, and / or a module according to claim 12.

14. A computer readable storage medium (SM) comprising instructions (PRG) which, when executed by a computer (202), cause said computer (202) to carry out the method according to any one of claims 1 to 8.

15. A computer program (PRG) comprising instructions which, when said program (PRG) is executed by a computer (202), cause said computer (202) to carry out the method according to any one of claims 1 to 8.

16. A data carrier signal (DCS) carrying and / or characterizing a computer program (PRG) according to claim 15.

17. a) signaling (301) that said at least one component (20-2-K) of said second interface device (20-2) should transition to said energy saving state (ZUST-LP); (b) using (302) a low power feature, e.g., an energy saving state, of said at least one component (20-2-K) of said second interface device (20-2); (c) controlling (303) and / or adjusting (304) a low power function, e.g., an energy saving state, of said at least one component (20-2-K) of said second interface device (20-2); (d) adjusting (305) the temperature of a module having the second interface device (20-2), such as a sensor module, such as a camera module; e) power conditioning (306) a module, such as a sensor module, such as a camera module, that includes the second interface device (20-2); f) adjusting (307) the electrical energy consumption of a module having said second interface device (20-2); g) integrating (308) a module, e.g. a sensor module, configured to output data at a relatively high data rate, e.g. a data rate of greater than 1000 Mbit / s, into a communication system (1000; 1000a), e.g. an in-vehicle Ethernet communication system (1000; 1000a); h) activating (309) a sensor module, for example a RADAR and / or LIDAR type sensor module; Use (300) of a method according to any one of claims 1 to 8, and / or an apparatus (20-1; 20-2; 200) according to claim 9, and / or an interface module according to claim 10, and / or a network coupling element according to claim 11, and / or a module according to claim 12, and / or a communication system (1000) according to claim 13, and / or a computer readable storage medium (SM) according to claim 14, and / or a computer program (PRG) according to claim 15, and / or a data carrier signal (DCS) according to claim 16 for at least one of the elements of claim 1 to 8.

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