EP4630839A1 - Verfahren und vorrichtung zur drahtlosen übermittlung eines steuerbefehls an eine sende- und empfangseinrichtung - Google Patents
Verfahren und vorrichtung zur drahtlosen übermittlung eines steuerbefehls an eine sende- und empfangseinrichtungInfo
- Publication number
- EP4630839A1 EP4630839A1 EP23813688.1A EP23813688A EP4630839A1 EP 4630839 A1 EP4630839 A1 EP 4630839A1 EP 23813688 A EP23813688 A EP 23813688A EP 4630839 A1 EP4630839 A1 EP 4630839A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- measurement signal
- transmitting
- receiving device
- reflector
- reflected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/497—Means for monitoring or calibrating
Definitions
- the invention relates to a method for wirelessly transmitting a control command to a transmitting and receiving device, which transmits a measurement signal to detect an object or a state of its environment and receives the reflected measurement signal and processes it in an associated electronic circuit.
- the invention also relates to a device for wirelessly transmitting a control command to a transmitting and receiving device.
- Transmitting and receiving devices often abbreviated to sensors, which send out a measurement signal to detect an object or a state of its environment, can be found in vehicles, among other places, and in considerable numbers.
- Today's electronic chassis controls in motor vehicles, trucks, buses or trailers are therefore dependent on the signals from transmitting and receiving devices in order to be able to carry out their control and regulation strategies at all.
- transmitting and receiving devices are also referred to as sensors in the following.
- signals that can be used to measure the height of the body or the body above the axle or the roadway using sensors designed as transmitters/receivers, but also signals for parking aids or parking assistance systems, usually generated by ultrasonic sensors that scan the vehicle's surroundings for obstacles, as well as signals from sensors for distance control or for detecting vehicles in front of and behind the vehicle, such as lidar or Radar sensors. All of these signals are generated by a large number of sensors designed as transmitting and receiving devices and not only depict loading and driving conditions, but also record the entire environment.
- DE 102 55 438 A1 discloses a device for determining a vehicle height above a roadway in the area of a wheel of a vehicle, in which a distance sensor is arranged for contactless measurement of a chassis part, here the wheel or an axle of the vehicle.
- a distance sensor is arranged for contactless measurement of a chassis part, here the wheel or an axle of the vehicle.
- One embodiment disclosed therein includes a radar sensor as a distance sensor.
- the sensors used here to send and receive signals are usually equipped with an electronic circuit, a so-called microcontroller, and often contain sequence programs programmed into them.
- an electronic circuit a so-called microcontroller
- powerful, variably usable sensors of this type must be set and calibrated in a predetermined manner after installation in the vehicle, at the start of their operation, and if necessary also during subsequent maintenance or replacement, so that clear, reproducible and stable signals can be generated and processed during operation.
- a special basic setting or calibration can, for example, be aimed at setting the sensor electronics to certain measuring distances or to a certain sequence mode during a measurement, to certain identifiers for the installation location of the sensor that are to be sent with the signal to the control system, and much more.
- Initiating such a calibration requires the transmission of a corresponding command/control command to the sensor electronics or to the sensor's microcontroller. This requires appropriate external access to the sensor's electronics, which is generally only possible through a bidirectional connection/wiring with a control unit, ie a control device or by complex radio and reading devices if the control command is to be transmitted wirelessly.
- sensors with bidirectional connections to a control device/control unit are much more complex, require additional contacts/connections and are therefore more expensive to manufacture than sensors with monodirectional connections.
- Complex radio and reading devices are also a cost factor for manufacture and maintenance.
- the object of the invention was therefore to provide a method that is as simple and safe to use as possible, with which a sensor can be calibrated or preset without bidirectional access or complex radio and reading devices, i.e. a method with which a control command can be transmitted wirelessly in a simple manner to a control device or a microcontroller of a transmitting and receiving device.
- the transmitted measurement signal is modified and reflected by a reflector placed in the direction of propagation of the transmitted measurement signal in such a way that that the changed, reflected measurement signal can be recognized and processed as a control command in the electronic circuit associated with the transmitting and receiving device, which can be designed as a microcontroller, for example.
- a control command then triggers a predetermined or pre-programmed sequence within the programmed routines of the microcontroller, e.g. the basic setting or calibration already described.
- the reflected signal/measurement signal is changed in a clear way and provided with a pattern that is clearly recognizable by the microcontroller, whereby the change cannot occur by chance, i.e. it does not correspond to a random change in the reflection during normal signal transmission and measurement operation. It is possible that the reflected and/or changed measurement signal is a zero signal. It is therefore possible that the measurement signal is not reflected at all, is absorbed or is reflected from a radiation direction in the direction of the transmitting and receiving device.
- the changed measurement signal can be recognized and processed as a control command for calibrating a transmitting and receiving device for high-frequency radiation arranged on a vehicle.
- the wireless transmission of a control command to the microcontroller of a sensor is thus carried out according to the invention by the sensor signal (measurement signal) itself, which is received again by the sensor after a change.
- a further development of the method according to the invention consists in that the changed measuring signal is used as a control command for calibrating the transmitting and receiving device to a predetermined measuring distance or detection area is recognizable and processable. For example, for use in vehicles it can be useful to set short distances of 0.3 m and to hide the other distances. Such a setting would be suitable for only detecting the distances determined on the basis of the runtime evaluations in the desired observation area, so that reflected signals from other objects, for example those further away, are not taken into account.
- the changed measurement signal can be recognized and processed as a control command for setting the transmitting and receiving device to a predetermined measuring method or mode.
- a predetermined measuring method or mode For example, an offset or constant offset can be defined for a runtime measurement or temperature measurement and taken into account in the calibration.
- the changed measurement signal can be recognized and processed as a control command for determining the installation location of a transmitting and receiving device/sensor for high-frequency radiation arranged on a vehicle.
- the sensor signals in the control device can thus be assigned directly to the corresponding locations where the sensors are positioned, for example individual axles or vehicle corners in a vehicle.
- One possible embodiment of the method consists in introducing a reflective, in particular metallic, surface of an object as a reflector in the direction of propagation of the transmitted measurement signal in a predetermined temporal pattern.
- a temporal pattern such as a predetermined sequence of repetitions, can then be recognized and processed as a control command in the microcontroller assigned to the transmitting and receiving device and programmed accordingly.
- the reflective, particularly metallic, surface can be a surface of a tool, for example the surface of a wrench or the polished surface of a feeler gauge or measuring device.
- a reflective, in particular metallic, surface of an object is placed as a reflector at a predetermined distance from the transmitting and receiving device in the direction of propagation of the transmitted measurement signal.
- the predetermined distance results in a predetermined intensity and runtime of the reflected radiation, which can then be recognized and processed by the microcontroller as a control command.
- a further development of the method consists in the reflective surface of an object being placed at such a short distance from the transmitting and receiving device in the direction of propagation of the transmitted measurement signal that the reflected measurement signal cannot be processed in the electronic circuit associated with the transmitting and receiving device.
- This also shows a behavior or pattern that can be recognized by an appropriately programmed microcontroller, which makes it possible to generate a control command.
- a further development of the method consists in the transmitting and receiving device emitting electromagnetic radiation in the form of radar radiation, in particular being designed as a radar sensor.
- the transmitting and receiving device being designed as an infrared sensor or as an ultrasonic sensor.
- the signals of this type of high-frequency radiation can be significantly changed by relatively simple reflectors placed in the direction of propagation of the transmitted measurement signal and can be provided with a pattern that is clearly recognizable by the sensor electronics or the microcontroller there.
- a device for wirelessly transmitting a control command to a transmitting and receiving device, which has at least one reflector device by means of which the measurement signal emitted by the transmitting and receiving device can be changed and reflected to the transmitting and receiving device in the form of a reflected measurement signal that differs from the emitted measurement signal.
- Such a device consists in the reflector device being designed as a reflector or mirror rotating or oscillating about an axis of rotation aligned perpendicular to the axis of the emitted radiation, such that the reflected measurement signal differs from the emitted measurement signal by a pattern of changed radiation intensity, in particular by a defined oscillating or pulsating reflection.
- a defined oscillating or pulsating reflection cannot be confused with randomly occurring patterns of reflections from other objects.
- the reflector device has at least one reflector or mirror arranged or designed in such a way that the emitted measurement signal cannot be reflected or can only be partially reflected.
- a further development in this respect that is easy to implement consists in that the reflectors or mirrors of the reflector device form a labyrinth for the emitted measurement signal, wherein the emitted measurement signal can be at least partially reflected out of the device without a reflected measurement signal.
- a further embodiment of the device consists in that at least one first reflector or mirror of the reflector device for the emitted measuring signal is arranged at a first distance from the transmitting and receiving device and is designed to be partially transparent, wherein in the radiation path behind the first reflector or mirror at least one second reflector or mirror is arranged in a second distance from the transmitting and receiving device is arranged in such a way that a portion of the measurement signal not reflected by the first reflector or mirror can be reflected as a reflected measurement signal to the transmitting and receiving device.
- Such an embodiment produces a reflected measurement signal with at least two radiation peaks that hit the receiving part of the sensor again at different times, so that here too a clear change in the reflected measurement signal based on the transit times can be recognized and processed as a control command in the associated electronic circuit.
- An equally clear and clearly identifiable change in the reflected measurement signal results from a further embodiment of the device, which consists in the reflector device having reflectors or mirrors through which the measurement signal emitted by the transmitting and receiving device can be reflected at an intensity and/or from a distance that differs significantly from an expected range for intensity or transit time specified for the reflected measurement signal from objects to be measured.
- Fig. 1 shows a device suitable for carrying out the method according to the invention as a schematic diagram
- Fig. 2 shows another embodiment of a device suitable for carrying out the method according to the invention as a schematic diagram
- Fig. 3 shows a further embodiment of a device suitable for carrying out the method according to the invention as a schematic diagram
- Fig. 4 shows a fourth embodiment of a device suitable for carrying out the method according to the invention as a schematic diagram.
- Fig. 1 shows a schematic diagram of a first embodiment of a device which is particularly suitable for carrying out the method according to the invention, without going into structural dimensions or details. The same applies to the embodiments of a device shown in Figs. 2 to 4.
- Fig.1 shows a device 1 suitable for carrying out the method according to the invention, in which a reflector device is designed as a mirror 5 rotating about an axis of rotation 4 aligned perpendicular to an axis 2 of an emitted measurement signal 3.
- the reflected measurement signal which pulsates with a unique pattern, is received by the sensor 6, processed and recognized as a control command using a microcontroller 7 provided in the sensor 6, which then triggers a predetermined or pre-programmed sequence within the programmed routines of the microcontroller, e.g. a calibration to a specific detection distance.
- a predetermined or pre-programmed sequence within the programmed routines of the microcontroller, e.g. a calibration to a specific detection distance.
- the device 1 with the reflector/mirror 5 can be removed from the sensor or from the radiation area of the sensor.
- the sensor 6 is then calibrated for its specific application.
- the rotation of the mirror 5 is symbolized by the rotation arrow 8.
- Fig. 2 shows a further device 20 suitable for carrying out the method according to the invention, in which the reflector device has several mirrors 23 which form a labyrinth for the emitted measuring signal 22 and of which one or more absorb part of the measuring signal or let it pass without reflection.
- the measuring signal 22 emitted in the radiation axis 21 will lose part of its intensity after hitting one of the mirrors 23. This either creates a reflected measuring signal of reduced intensity or the reflected measuring signal is a zero signal (no reflection).
- the pattern that can be recognized in the sensor device is that the reflected measurement signal is either a zero signal or has a defined change in intensity. This is also a pattern that is unique and is recognized as a control command using a microcontroller 25 provided in the sensor 24, which then triggers a pre-programmed sequence within the microcontroller's programmed routines. After processing the program routine, the device 20 with the reflectors/mirrors 23 can be removed again. The sensor 24 is then calibrated.
- Fig. 3 shows a further device 30 suitable for carrying out the method according to the invention, in which the reflector device has mirrors 33 which completely reflect the emitted measurement signal 32, whereby in the case shown here the measurement signal 32 emitted by the sensor 34 is reflected at an intensity and from a distance which differs from a predetermined expected range for intensity or runtime which is usually present for a reflected measurement signal from objects to be measured.
- This is also a pattern which is unique and is recognised as a control command using a microcontroller 35 provided in the sensor 34.
- the control command then triggers the sequence already described above within the programmed routines of the microcontroller.
- the device 30 with the reflectors/mirrors 33 can then be removed again.
- the sensor 34 is then calibrated.
- the device 40 has two mirrors 43a and 43b as reflector devices.
- the first mirror 43a is a semi-transparent mirror that only partially reflects, namely only a portion of the measurement signal 47.
- the second mirror 43b is a mirror that reflects completely.
- the first semi-transparent mirror 43a is arranged at a first distance xi from the sensor 44, while in the radiation path/in the beam axis 41 behind the semi-transparent first mirror 43a the second mirror 43b is arranged at a second distance X2 from the sensor 44 such that a portion of the measurement signal 46 not reflected by the first mirror 43a can be reflected by the second mirror 43b as a reflected measurement signal to the sensor 44.
- the measurement signal 42 emitted by the sensor in the beam axis 41 is thus recognized after reflection/partial reflection by the mirrors 43a and 43b as a reflected measurement signal with different travel times and two clear peaks of different intensity.
- This is also a pattern that is unique and is recognized as a control command using a microcontroller 45 provided in the sensor 44.
- the control command triggers the corresponding routines of the microcontroller, as already described above.
- the sensor 44 is then calibrated and the device 40 can be removed.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022132299.8A DE102022132299A1 (de) | 2022-12-06 | 2022-12-06 | Verfahren und Vorrichtung zur drahtlosen Übermittlung eines Steuerbefehls an eine Sende- und Empfangseinrichtung |
| PCT/EP2023/083175 WO2024120872A1 (de) | 2022-12-06 | 2023-11-27 | Verfahren und vorrichtung zur drahtlosen übermittlung eines steuerbefehls an eine sende- und empfangseinrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4630839A1 true EP4630839A1 (de) | 2025-10-15 |
Family
ID=88975459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23813688.1A Withdrawn EP4630839A1 (de) | 2022-12-06 | 2023-11-27 | Verfahren und vorrichtung zur drahtlosen übermittlung eines steuerbefehls an eine sende- und empfangseinrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4630839A1 (de) |
| DE (1) | DE102022132299A1 (de) |
| WO (1) | WO2024120872A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10255438A1 (de) | 2002-11-28 | 2004-06-17 | Daimlerchrysler Ag | Vorrichtung zur Ermittlung der Fahrzeughöhe über der Fahrbahn |
| DE102011005567A1 (de) * | 2011-03-15 | 2012-09-20 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Informationssignalisierung und -rückgewinnung |
| DE102011088510A1 (de) * | 2011-12-14 | 2013-06-20 | Robert Bosch Gmbh | Reflektor für elektromagnetische Strahlung mit zeitlich veränderbarem Rückstreuquerschnitt |
| DE102014017917B3 (de) * | 2014-12-04 | 2015-11-12 | Audi Ag | Verfahren zum Konfigurieren wenigstens eines an einer von mehreren Einbaupositionen in einem Kraftfahrzeug verbauten Radarsensors hinsichtlich der Einbauposition und Kraftfahrzeug |
| DE102020203780A1 (de) * | 2020-03-24 | 2021-09-30 | Siemens Mobility GmbH | Automatisierte Sensorüberwachung |
| DE102020120181A1 (de) * | 2020-07-30 | 2022-02-03 | Man Truck & Bus Se | Radarreflektor zur Reflexion von Radarstrahlung und System zur Steuerung eines automatisierten Betriebs eines Kraftfahrzeugs |
-
2022
- 2022-12-06 DE DE102022132299.8A patent/DE102022132299A1/de active Pending
-
2023
- 2023-11-27 EP EP23813688.1A patent/EP4630839A1/de not_active Withdrawn
- 2023-11-27 WO PCT/EP2023/083175 patent/WO2024120872A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022132299A1 (de) | 2024-06-06 |
| WO2024120872A1 (de) | 2024-06-13 |
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