ELECTRICAL CONNECTING DEVICE, TRANSCEIVER SYSTEM AND METHOD FOR OPERATING THE ELECTRICAL CONNECTING DEVICE

Abstract

An electrical connection device, in particular an electrical plug connector device, having at least one connection element which is configured for a physical connection to a data line, the electrical connection device further comprising a signal harvesting unit, in particular an RS-232 signal harvesting unit, which is configured to divert at least a portion of an electrical data signal emitted by the data line in order to obtain electrical energy, in particular at least to obtain electrical operating energy for signal-based data conversion and/or for radio-based signal transmission.

Claims

1. An electrical connection device, in particular an electrical plug connector device, having at least one connection element which is configured for a physical connection to a data line, comprising a signal harvesting unit, in particular an RS-232 signal harvesting unit, which is configured to divert at least a portion of an electrical data signal emitted by the data line in order to obtain electrical energy, in particular at least to obtain electrical operating energy for signal-based data conversion and/or for radio-based signal transmission.

2. The electrical connection device as claimed in claim 1, wherein the electrical data signal is an electrical voltage signal.

3. The electrical connection device as claimed in claim 2, wherein the electrical data signal is a Recommended Standard 232 (RS-232) signal or a Universal Asynchronous Receiver Transmitter (UART) signal of a serial interface.

4. The electrical connection device as claimed in claim 3, wherein the electrical data signal is at least a Tx signal of the serial interface.

5. The electrical connection device as claimed in claim 1, comprising a plug and play functional principle.

6. The electrical connection device as claimed in claim 2, wherein the signal harvesting unit is configured to divert the portion of the voltage of the electrical voltage signal that carries a negative sign at least partially, preferably completely, in order to obtain the electrical energy.

7. The electrical connection device as claimed in claim 2, wherein the signal harvesting unit is at least configured to adjust the portion of the voltage of the electrical voltage signal that carries a positive sign to a reduced voltage level.

8. The electrical connection device as claimed in claim 2, wherein the signal harvesting unit is at least configured to at least partially divert the portion of the voltage of the electrical voltage signal that carries a positive sign in order to obtain electrical energy.

9. The electrical connection device as claimed in claim 8, wherein the signal harvesting unit is at least configured to completely divert at least a portion, in particular a temporal part, of an electrical voltage signal that carries a positive sign and forms a bit, in order to obtain electrical energy.

10. The electrical connection device as claimed in claim 1, comprising a data processing unit for signal-based conversion of the electrical data signal emitted by the data line.

11. The electrical connection device as claimed in claim 10, wherein the data processing unit is supplied with electrical energy directly or indirectly by the signal harvesting unit.

12. The electrical connection device as claimed in claim 1, comprising a radio module having a transmitter which is at least configured to wirelessly emit the information contained in the electrical data signal.

13. The electrical connection device as claimed in claim 1, comprising a radio module having a receiver which is at least configured to receive radio data signals.

14. The electrical connection device as claimed in claim 10, wherein the data processing unit is configured to convert the radio data signals received by the receiver into an electrical data signal, in particular into an RS-232 data signal, which can be fed into an electrical (Tx or Rx) data line.

15. The electrical connection device as claimed in claim 12, wherein the radio module is supplied with electrical energy directly or indirectly by the signal harvesting unit.

16. The electrical connection device as claimed in claim 1, comprising an energy storage device for storing at least a portion of the electrical energy obtained by the signal harvesting unit.

17. The electrical connection device as claimed in claim 16, wherein the signal harvesting unit comprises a current and/or voltage converter, in particular a DC-DC converter, which is fed by electrical energy diverted by the signal harvesting unit and which is configured to supply the energy storage device with a charging current.

18. The electrical connection device as claimed in claim 1, wherein the signal harvesting unit comprises a current and/or voltage converter, in particular a DC-DC converter, which is fed by electrical energy diverted by the signal harvesting unit and which is at least configured to supply a functional component of the electrical connection device with electrical energy.

19. The electrical connection device as claimed in claim 1, wherein the signal harvesting unit is configured to divert, at least time-segment-wise, in particular at least in an idle state of the electrical data signal, the entire electrical data signal emitted by the data line in order to obtain electrical energy.

20. A transceiver system having at least one first electrical connection device and at least one second electrical connection device both being implemented as claimed in claim 1, wherein the first electrical connection device comprises at least one radio module having a transmitter, and wherein the second electrical connection device comprises at least one radio module having a receiver.

21. The transceiver system as claimed in claim 20, wherein a power supply of the connecting devices is independent of an external power supply that is different from a data line carrying an electrical data signal.

22. A method for operating an electrical connection device, having at least one connection element which is physically connected to a data line, wherein in order to obtain electrical energy, in particular at least to obtain electrical operating energy for a signal-based data conversion and/or for a radio-based signal transmission, at least a portion of an electrical data signal emitted by the data line is diverted by means of a signal harvesting unit, in particular an RS-232 signal harvesting unit.

Description

DRAWINGS

[0030] Further advantages will become apparent from the following description of the drawings. A number of exemplary embodiments of the invention are shown in the drawings. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them to form meaningful further combinations.

[0031] In the drawings:

[0032] FIG. 1 shows a schematic illustration of a transceiver system having two electrical connection devices within a building,

[0033] FIG. 2 shows a schematic illustration of the transceiver system within a means of transport,

[0034] FIG. 3 shows a schematic perspective illustration of the electrical connection device,

[0035] FIG. 4 shows an exemplary illustration of a serial UART data signal (top) and a serial RS-232 data signal (bottom) in voltage-time graphs,

[0036] FIG. 5 shows a schematic diagram of the RS-232 data signal entering the electrical connection device, and

[0037] FIG. 6 shows a schematic flowchart of a method for operating the electrical connection device,

[0038] FIG. 7 shows a schematic illustration of the transceiver system within a means of transport formed as a commercial vehicle, and

[0039] FIG. 8 shows a schematic illustration of the transceiver system within a traffic infrastructure.

DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

[0040] FIGS. 1 and 2 show a transceiver system 38 in two different application examples. The application example of FIG. 1 relates to a building 42. The building 42 includes a data line 12 fixedly installed in a wall 44 of the building 42. The data line 12 is configured to transmit an electrical data signal 16. The electrical data signal 16 is an electrical voltage signal. The electrical data signal 16 is a Recommended Standard 232 (RS-232) signal. The data line 12 is formed as an RS-232 data line. The data line 12 comprises two data sockets 46, 48 arranged in different rooms of the building 42. The data sockets 46, 48 are formed as RS-232 data sockets, for example as D-subminiature DE09 data sockets. A system 52 is plugged into a data socket 46 and transmits the electrical data signal 16, in particular an RS-232 signal. The system 52 feeds the data signal 16 into the data line 12. In this example, the system 52 forms a generator of the electrical data signal 16. In this example, the system 52 is formed as a computer server. Data signals, in particular RS-232 data signals and/or UART data signals, can be transmitted via the transceiver system 38 to another system 64, formed by way of example as a computer server, which is located, for example, in a third room of the building 42, without having to modify a cable routing inside or outside the walls 44 of the building for this purpose.

[0041] The application example of FIG. 2 relates to a means of transport 54. The means of transport 54 is formed by way of example as a vehicle, in particular an automobile. The means of transport 54 has an engine 56 with an engine control device 58. The engine control device 58 has a data socket 46 implemented as an RS-232 data socket. The data socket 46 of the engine control device 58 forms a data output of the engine control device 58. The means of transport 54 comprises a dashboard 60. The dashboard 60 comprises a display panel and/or instrument panel 62. The dashboard 60 comprises a data socket 48 implemented as an RS-232 data socket. The data socket 48 of the dashboard 60 forms a data input for the display panel and/or instrument panel 62. In this example, data signals can be exchanged between the engine control device 58 and the display and/or instrument panel 62 via the transceiver system 38 without the need to modify a wiring harness of the means of transport 54.

[0042] The transceiver system 38 comprises a first electrical connection device 40. In the example of FIG. 1, the first electrical connection device 40 is installed in the data socket 48. The transceiver system 38 in each case comprises a second electrical connection device 50. In the example of FIG. 1, the second electrical connection device 50 is installed in a port of the further system 64. The first electrical connection device 40 has at least one radio module 26 with a transmitter 28 (see also FIG. 3). The second electrical connection device 50 has at least one radio module 26 with a receiver 30 (see also FIG. 3). The radio modules 26 of the electrical connection devices 40, 50 are configured to exchange radio signals. The radio signals communicated between the electrical connection devices 40, 50 may be encrypted or unencrypted. The first electrical connection device 40 and the second electrical connection device 50 are implemented at least substantially identically or complementarily to each other. The power supply to the connecting devices 40, 50 is independent of an external power supply that is different from the data line 12 carrying the electrical data signal 16. In the example of FIG. 1, an electrical data signal 16 output from the system 52 is used to power the first connecting device 40. In the example of FIG. 1, an electrical data signal 16 output from the further system 64 is used to power the second connecting device 50.

[0043] FIG. 3 shows a perspective view of the electrical connection device 40, 50 in an exemplary embodiment. The electrical connection device 40, 50 is formed as an electrical plug connector device, in particular as an electrical plug connector. The electrical connection device 40, 50 forms a serial interface 18. The electrical data signal 16 is therefore a Tx signal of the serial interface 18. The electrical connection device 40, 50 forms an RS-232 interface or a UART interface. Therefore, the electrical data signal 16 is a signal of a TxD data line of the RS-232 interface or the UART interface. The electrical connection device 40, 50 comprises a connection element 10. The connection element 10 is configured to be physically connected to the data line 12. The connection element 10 is formed as a male D-subminiature DE-09 connector. Alternative, in particular also female connector forms are conceivable. The connection element 10 has a TxD connection pin 66 for connection to a TxD data line.

[0044] The electrical connection device 40, 50 has a plug and play functional principle. The electrical connection device 40, 50 comprises a signal harvesting unit 14, in particular for implementing the plug and play functional principle. The signal harvesting unit 14 is formed as an RS-232 signal harvesting unit. The signal harvesting unit 14 is configured to divert at least a portion 20, 22 of an electric data signal 16 output from the data line 12 in order to obtain electric power. The signal harvesting unit 14 is configured to divert the portion 20, 22 of the electrical data signal 16 output from the data line 12 in order to obtain electrical operating power for signal-based data conversion and/or for radio-based signal transmission of the information content of the electrical data signal 16. The signal harvesting unit 14 is configured to divert the portion 20, 22 of the electrical data signal 16 output from the data line 12 in order to obtain an electrical charging current for energy storage. The signal harvesting unit 14 comprises an electrical circuit which diverts the portion 20, 22 of the electric data signal 16 output from the data line 12 in order to obtain the electrical operating power and/or in order to obtain the charging current. The signal harvesting unit 14 comprises an electrical circuit that passes only a (minimal) portion of the electrical data signal 16 necessary for information transmission.

[0045] The electrical connection device 40, 50 comprises a data processing unit 24. The data processing unit 24 is formed as a microcontroller. The data processing unit 24 is configured to convert, in a signal-based manner, the electrical data signal 16 output from the data line 12. The data processing unit 24 is directly supplied with electric power (diverted from the electric data signal 16 by the signal harvesting unit 14) from the signal harvesting unit 14.

[0046] The electrical connection device 40, 50 comprises a radio module 26. The radio module 26 comprises the transmitter 28. The transmitter 28 of the radio module 26 is configured to wirelessly emit the information contained in the electrical data signal 16. The data processing unit 24 is configured to convert, in a signal-based manner, the electrical data signal 16 output from the data line 12 into a radio data signal. The transmitter 28 of the radio module 26 is configured to wirelessly emit the data signal converted in a signal-based manner into radio data signals by the data processing unit 24. The transmitter 28 is embodied as a Bluetooth low-energy antenna. The radio module 26 comprises the receiver 30. The receiver 30 is configured to receive radio data signals, preferably the radio data signals of the transmitter 28 of a further electrical connection device 40, 50 paired with the electrical connection device 40, 50. The data processing unit 24 is configured to convert the radio data signals received by the receiver 30 into an electrical data signal 16, in particular into an RS232 data signal, which can be fed into an electrical (Tx) data line 12. The connection element 10 has a TxD connection pin 68, which is configured for an output of the electrical data signal 16 received by the receiver 30 and then processed accordingly. The electrical connection device 40, 50 comprises a level converter 32. The level converter 32 is configured to increase the electrical data signal 16 received by the receiver 30 and converted by the data processing unit 24 to an RS-232 voltage level. The radio module 26, in particular the transmitter 28 and/or the receiver 30, is directly supplied with electrical energy (diverted from the electrical data signal 16 by the signal harvesting unit 14) from the signal harvesting unit 14.

[0047] The signal harvesting unit 14 has a current and/or voltage converter 34. The current and/or voltage converter 34 is formed as a DC-DC converter. The current and/or voltage converter 34 is powered by electrical energy that is diverted from the electrical data signal 16 by the signal harvesting unit 14. The current and/or voltage converter 34 is configured to directly supply electrical energy to one or more functional components of the electrical connection device 40, 50, for example the radio module 26, the data processing unit 24, or the level converter 32. The electrical connection device 40, 50 comprises an energy storage device 36. The energy storage device 36 is configured to store at least a portion of the electrical energy generated by the signal harvesting unit 14. The energy storage device 36 is formed as an accumulator. The current and/or voltage converter 34 is configured to supply the energy storage device 36 with a charging current. Via the energy storage device 36, the radio module 26, in particular the transmitter 28 and/or the receiver 30, the data processing unit 24 and/or the level converter 32, can optionally be supplied indirectly by the signal harvesting unit 14 with electrical energy (diverted from the electrical data signal 16 by the signal harvesting unit 14).

[0048] In FIG. 4, a serial UART data signal (74, top) and a serial RS-232 data signal (76, bottom) are shown in voltage-time graphs as examples. A time is plotted on abscissas 70 of each of the voltage-time graphs. An electrical voltage is plotted on ordinates 72 of each of the voltage-time graphs. The electrical data signal 16 shown in FIG. 4 forms a binary signal of the Latin capital letter “J”. Read from right to left, the binary signal of the Latin capital letter “J” is 01001010. The binary signal includes a start signal 78 (start bit) and a stop signal 80 (stop bit). Between the start signal 78 and the stop signal 80, payload 82 is transmitted in the form of (eight) data bits (B0 to B7). Before the start signal 78 and after the stop signal 80, the data transmission can be in an idle state 84.

[0049] The serial RS-232 data signal 76 represents a typical electrical data signal 16 transmitted through an RS-232 data line. The serial RS-232 data signal 76 has a voltage level that converts between +12V and −12V. A positive voltage level means here a binary “0” (space). A negative voltage level means here a binary “1” (mark). The voltage level shown in the lower voltage-time graph of FIG. 4 is output when the Latin capital letter “J” is transmitted to the TxD connection pin 66 of the electrical connection device 40, 50. The voltage level shown in the lower voltage-time graph of FIG. 4 is output when the Latin capital letter “J” is transmitted to the TxD connection pin 68 of the electrical connection device 40, 50. In the idle state 84, the voltage level of the serial RS-232 data signal 76 is constant at −12 V.

[0050] The UART data signal 74 represents a TTL-compatible electrical data signal 16 that is compatible with, for example, the data processing unit 24, particularly the microcontroller. The serial UART data signal 74 has a voltage level that converts between 0 V and +3 V. The serial UART data signal 74 is inverted relative to the RS-232 data signal. A voltage level of zero means here a binary “0” (space). A positive voltage level (+3 V) means here a binary “1” (mark). The voltage level shown in the upper voltage-time graph of FIG. 4 is output to the data processing unit 24 of the electrical connection device 40, 50 when the Latin capital letter “J” is transmitted. The voltage level shown in the upper voltage-time graph of FIG. 4 is output to the level converter 32 for increase when the Latin capital letter “J” is transmitted. In the idle state 84, the voltage level of the serial UART data signal 74 is constant at +3 V.

[0051] FIG. 5 shows a schematic diagram of an RS-232 data signal 76 entering the electrical connection device 40, 50. By means of a first electronic component 86 of the electrical connection device 40, 50, in particular of the signal harvesting unit 14, for example by means of a positive voltage clamp, by means of the level converter 32, by means of an electrical clipper, by means of an electrical damper or by means of an electrical valve, the portion 22 of the voltage of the RS-232 data signal 76 that carries a positive sign is adjusted and/or limited to a reduced voltage level, for example a transistor-transistor logic (TTL) compatible voltage level. In addition, it is conceivable that the signal harvesting unit 14 is configured to divert the excess portion of the voltage of the electrical voltage signal, that carries a positive sign and that remains after the limiting to the reduced voltage level, in order to obtain electrical energy. The diverted electrical data signal 16, which is adjusted and/or limited to the reduced voltage level, is then inverted, for example by the level converter 32, and thus converted to the UART data signal 74. The UART data signal 74 is output directly to the data processing unit 24, in particular to the microcontroller. The data processing unit 24, in particular the microcontroller, converts the UART data signal 74 into a radio data signal, which in turn is emitted by the transmitter 28 of the radio module 26.

[0052] By means of a second electronic component 88 of the electrical connection device 40, 50, in particular of the signal harvesting unit 14, for example by means of a negative voltage clamp, by means of the level converter 32, by means of the electrical clipper, by means of the electrical clamper or by means of an electrical valve, the portion 20 of the voltage of the electrical voltage signal that carries a negative sign is diverted in order to obtain the electrical energy. In addition, it is conceivable that the signal harvesting unit 14 is configured to divert all of the RS-232 data signal 76 output from the data line 12 in the idle state 84 of the RS-232 data signal 76 in order to obtain electrical energy. The electrical voltage signal diverted in order to obtain electrical energy is transmitted to a current and/or voltage converter 34, in particular a DC-DC converter, which thereby provides a charging current for the energy storage device 36 and/or which thereby provides a direct power supply to the data processing unit 24 and/or the radio module 26 and/or the electronic components 86, 88.

[0053] FIG. 6 shows a flowchart of a method for operating the electrical connection device 40, 50. In at least one method step 90, the data line 12 is provided. In at least one further method step 92, the system 52 emitting the electrical data signal 16 is connected to the data socket 46 of the data line 12. In at least one further method step 94, the electrical connection device 40 is connected to the further data socket 48 forming a second end of the data line 12 by plugging in the connection element 10. In the further method step 94, the electrical connection device 40 is ready for use immediately without requiring any adjustments to the system 52 due to the plug-and-play functionality.

[0054] In at least one further method step 96, a portion of the electrical data signal 16 emitted by the data line 12 is diverted by means of the signal harvesting unit 14 in order to obtain electrical operating energy for the signal-based data conversion and/or for the radio-based signal transmission. In at least a sub-step 98 of the method step 96, the portion 20 of the voltage of the electrical voltage signal that carries a negative sign is diverted in order to obtain electrical energy. When the electrical data signal 16 is in an RS-232 idle state 84, in the sub-step 98 of the method step 96, an entire RS-232 idle state signal that carries a negative sign is diverted in order to obtain the electrical energy. In at least one further sub-step 100 of the method step 96, the portion 22 of the voltage of the electrical voltage signal that carries a positive sign and that is to be used for an information transmission is adjusted and/or limited to a reduced or a TTL-compatible voltage level. In the sub-step 100 of the method step 96, the portion 22 of the voltage of the electrical voltage signal that is adjusted and/or limited to the reduced or TTL-compatible voltage level is inverted. In the sub-step 100 of the method step 96, the portion 22 of the voltage of the electrical voltage signal that is adjusted and/or limited to the reduced or the TTL-compatible voltage level is converted into the UART data signal 74. In at least one further sub-step 102 of the method step 96, the excess portion of the positive voltage portion 22 of the electrical voltage signal, remaining after the adjustment and/or limitation to the reduced or the TTL-compatible voltage level, is diverted in order to obtain electrical energy.

[0055] In at least one further method step 104, the portion of the electrical data signal 16 diverted in order to obtain electrical energy is redirected to the current and/or voltage converter 34. In at least one further method step 106, the energy storage device 36 is charged by the electrical energy obtained by means of the signal harvesting unit 14, in particular by means of the current and/or voltage converter 34. In at least one further method step 108, the data processing unit 24 is operated by the electrical energy obtained by means of the signal harvesting unit 14, in particular by means of the current and/or voltage converter 34. In the method step 108, moreover, the level converter 32 can be operated by the electrical energy obtained by means of the signal harvesting unit 14, in particular by means of the current and/or voltage converter 34. In at least one further method step 110, the radio module 26 is operated by the electrical energy obtained by means of the signal harvesting unit 14, in particular via the current and/or voltage converter 34. In at least one further method step 112, the UART data signal 74 is forwarded directly to the data processing unit 24, in particular to the microcontroller. In at least one further method step 114, the UART data signal 74 is converted into a radio data signal by the data processing unit 24, in particular by the microcontroller. In at least one further optional method step 128, the radio data signal is encrypted. In at least one further method step 116, the radio data signal is emitted by the transmitter 28 of the radio module 26.

[0056] In at least one further method step 118, the radio data signal is received by the receiver 30 of a further electrical connection device 50 and, if necessary, decrypted. In at least one further method step 120, the radio data signal is converted into the RS-232 data signal 76 by the data processing unit 24 of the further electrical connection device 50. In at least a sub-step 122 of the method step 120, the RS-232 data signal 76 is increased to a normal RS-232 voltage level by the level converter 32. In at least one further method step 124, the RS-232 data signal 76 is output from the further electrical connection device 50 via its TxD connection pin 68 to the further system 64 or to a further data line 126 (cf. FIG. 2).

[0057] FIGS. 7 and 8 show two further application examples of the transceiver system 38. The application example of FIG. 7 relates to a means of transport 54 formed as a commercial vehicle 130. In the exemplary case shown, the commercial vehicle 130 comprises a snow shovel 132 and a salt spreader 134. The salt spreader 134, for example, a salt spread rate setting of the salt spreader 134, is controllable from a driver's cab 138 of the commercial vehicle 130 by means of an operating lever 136 of the commercial vehicle 130. The operating lever 136 comprises a data socket (not shown) formed as an RS-232 data socket. The data socket of the operating lever 136 forms a data output of the operating lever 136. The salt spreader 134, in particular a control unit of the salt spreader 134, comprises a data socket formed as an RS-232 data socket (not shown). The data socket of the salt spreader 134 is arranged within a housing 140 of the salt spreader 134 so as to be protected from external influences such as salt, moisture or dirt. The data socket of the salt spreader 134 forms a data input to a controller of the salt spreader 134. In this example, data signals generated by an operator of the commercial vehicle 130 from the driver's cab 138 of the commercial vehicle 130 by an operation of the operating lever 136 can be transmitted to the salt spreader 134, in particular to the control unit of the salt spreader 134, via the transceiver system 38 without the need for complex cable routing within the commercial vehicle 130 for this purpose.

[0058] The application example of FIG. 8 relates to a traffic monitoring device 146 integrated into a traffic infrastructure 142. The traffic infrastructure 142 is formed by way of example as a road sign structure 144, on which sensors 148 of the traffic monitoring device 146 are mounted. For example, the sensors 148 of the traffic monitoring device 146 can be formed of radar sensors which are configured for traffic counting. The traffic infrastructure 142 includes a data socket 46 embodied as an RS-232 data socket. The traffic monitoring device 146 is connected to the data socket 46 of the traffic infrastructure 142 via a data line 12. The data socket 46 forms a data output of the traffic monitoring device 146. The traffic monitoring device 146 includes a readout device 150. The readout device 150 must be signal-connected to the sensors 148 in order to read out data from the sensors 148. The readout device 150 comprises a data socket 48 formed as an RS-232 data socket. The data socket 48 of the readout device 150 forms a data input for a display 152 of the readout device 150. Electrical connection devices 40, 50 corresponding to each other and forming the transceiver system 38 are plugged into the data sockets 46, 48. In this example, data signals can be exchanged between the sensors 148 and the readout device 150 via the transceiver system 38 without the need to climb the road sign structure 144 and directly connect the readout device 150 to the data socket 46 of the traffic monitoring device 146 integrated in the road sign structure 144.

REFERENCE SIGNS

[0059] 10 connection element

[0060] 12 data line

[0061] 14 signal harvesting unit

[0062] 16 electrical data signal

[0063] 18 serial interface

[0064] 20 portion

[0065] 22 portion

[0066] 24 data processing unit

[0067] 26 radio module

[0068] 28 transmitter

[0069] 30 receiver

[0070] 32 level converter

[0071] 34 current and/or voltage converter

[0072] 36 energy storage device

[0073] 38 transceiver system

[0074] 40 electrical connection device

[0075] 42 building

[0076] 44 wall

[0077] 46 data socket

[0078] 48 data socket

[0079] 50 electrical connection device

[0080] 52 system

[0081] 54 means of transport

[0082] 56 engine

[0083] 58 engine control device

[0084] 60 dashboard

[0085] 62 display and/or instrument panel

[0086] 64 system

[0087] 66 TxD connection pin

[0088] 68 RxD connection pin

[0089] 70 abscissa

[0090] 72 ordinate

[0091] 74 UART data signal

[0092] 76 RS-232 data signal

[0093] 78 start signal

[0094] 80 stop signal

[0095] 82 payload

[0096] 84 idle state

[0097] 86 first electronic component

[0098] 88 second electronic component

[0099] 90 method step

[0100] 92 method step

[0101] 94 method step

[0102] 96 method step

[0103] 98 sub-step

[0104] 100 sub-step

[0105] 102 sub-step

[0106] 104 method step

[0107] 106 method step

[0108] 108 method step

[0109] 110 method step

[0110] 112 method step

[0111] 114 method step

[0112] 116 method step

[0113] 118 method step

[0114] 120 method step

[0115] 122 sub-step

[0116] 124 method step

[0117] 126 data line

[0118] 128 method step

[0119] 130 commercial vehicle

[0120] 132 snow shovel

[0121] 134 salt spreader

[0122] 136 operating lever

[0123] 138 driver's cab

[0124] 140 housing

[0125] 142 traffic infrastructure

[0126] 144 road sign structure

[0127] 146 traffic monitoring device

[0128] 148 sensor

[0129] 150 readout device

[0130] 152 display