EP4226504A1 - Uwb-moduleinheit für ein fahrzeug - Google Patents
Uwb-moduleinheit für ein fahrzeugInfo
- Publication number
- EP4226504A1 EP4226504A1 EP21790835.9A EP21790835A EP4226504A1 EP 4226504 A1 EP4226504 A1 EP 4226504A1 EP 21790835 A EP21790835 A EP 21790835A EP 4226504 A1 EP4226504 A1 EP 4226504A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- module unit
- detection
- uwb
- vehicle
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Definitions
- the present invention relates to a modular unit, in particular a combined, individually manageable and/or connected modular unit, preferably in the form of a multifunctional unit, preferably in the form of a hardware unit, for providing different vehicle functions in a vehicle. Furthermore, the present invention is aimed at a corresponding vehicle with at least one such modular unit. Furthermore, the invention relates to a method for providing different vehicle functions in a vehicle using such a module unit.
- Systems for vehicles for providing different vehicle functions such. B Movement and/or gesture control, person recognition, etc., generally known. Such systems can be designed to vehicle assistance systems Execution of different vehicle functions to support. It can be vehicle assistance systems for outdoor surveillance, such. B.
- Access control systems or for interior surveillance, such. B.
- Authentication of an authorized user is verified in order to perform certain actions, such as B. contactless operation of flaps or doors.
- the known systems usually require different sensors that have to be wired up in a complex manner, that have to be attached to the vehicle with a high level of assembly effort and that have to be connected to control units and complicated control electronics in the vehicle in a complicated manner.
- the object of the present invention is therefore to at least partially overcome the disadvantages described above.
- the object of the present invention is to provide a modular unit that is simple and inexpensive in design, easy to assemble and easy to connect (electrically and in terms of control technology and data technology), which can provide different vehicle functions in a vehicle.
- the object of the invention is to provide a modular unit that is reliable in operation and that increases the safety in the operation of the vehicle assistance systems.
- a modular unit in particular a combined, individually manageable and/or connected modular unit, preferably in the form of a multifunctional unit, preferably in the form of a hardware unit, for providing different vehicle functions in a vehicle with the features of the independent device claim; by a corresponding vehicle with at least one such module unit with the features of the independent device claim and by a method for providing different vehicle functions in a vehicle using such a module unit with the features of the independent method claim.
- a modular unit in particular a combined, individually manageable and/or connected modular unit, preferably in the form of a multifunctional unit, preferably in the form of a hardware unit, for providing different vehicle functions in a vehicle, having: at least one printed circuit board on which the following elements are arranged: a UWB antenna for carrying out a communication (i.e. a data exchange between two devices) and/or a detection (i.e.
- UWB transceiver or UWB transceiver
- Vera Working device for controlling the UWB transceiver in order to carry out the communication and/or the detection by the UWB antenna
- an, in particular electronic, interface for transmitting at least one result of the communication and/or the detection to a vehicle-mounted control unit in order to use the different Trigger vehicle functions depending on the communication and / or detection.
- the UWB transceiver can be built in the form of a UWB front-end module.
- the processing device can be an electronic processing arrangement and can have a microcontroller, for example, for processing.
- the processing device can control the UWB transceiver and process the electrical signals transmitted and/or received by the UWB transceiver in order to evaluate the communication and/or the detection and provide a result or information based on the communication and/or of detection.
- the processing device can also generate a function code for a corresponding vehicle function based on, in particular as a function of the evaluation, the communication and/or the detection, in order to trigger the corresponding vehicle function.
- the interface can also be an electronic interface that can connect the module unit electrically, control-technically and data-technically with the control unit of the vehicle in order to, for. B. to transmit the results of the communication and/or the detection to the control unit via the interface and/or to trigger an activation of different vehicle functions depending on the communication and/or the detection via the interface.
- the electrical signals transmitted and/or received by the UWB transceiver may be communication and/or detection specific. This means in particular that a result of the communication and/or the detection can be determined by the processing device on the basis of the electrical signals.
- a result of a detection can include at least information about whether a user or a person and/or an object is in the vicinity of the module unit, is moving and/or is moving in a particular way.
- a result of a communication between the module unit and a user-side mobile device can be at least one piece of information about the user, e.g. B. an authentication information, which performs an activation action.
- the module unit can receive information about the user, e.g. B. an authentication information, the results of the communication and / or the detection and / or, in particular calculated by the processing device, function code for a corresponding vehicle function to the vehicle-side control unit.
- a result of communication between the module unit and a user's mobile device may include not only the authentication information and/or the function code, but also navigation data, message data, music data, and the like. For security reasons, the user must identify himself beforehand so that no foreign data is exchanged between the module unit and a mobile device. This data can be transmitted from the UWB sensor unit to the on-board control unit via the interface.
- a signal for communication can e.g. B. be a defined sequence of short UWB pulses.
- the defined sequence of short UWB pulses which can be provided with time stamps, for example, can be generated using pulse phase modulation as part of digital radio transmission.
- a UWB pulse is shifted relative to a constant reference clock in terms of time, namely the phase.
- the phase shift between the UWB pulses symbolizes the information such.
- B. authentication information The period duration and the amplitude remain the same.
- a UWB pulse can be mapped as a portion of a sine wave of finite duration of a few nanoseconds or even picoseconds, corresponding to a broad spectral line from at least 5 GHz, particularly from 7.5 GHz, to over 8.8 GHz.
- the size of the UWB antenna determines the center frequency and bandwidth of the UWB pulse.
- the entire transmission power of the UWB antenna of a few milliwatts e.g. of approx. 0.5 mW
- the module unit is provided as a single node or, in other words, as a satellite, which is provided as a single coherent hardware unit with all the necessary sensor functions (communication and detection), processing and control components and an interface to the on-board control unit is used to provide different vehicle functions for a corresponding vehicle assistance system using only one module unit.
- only one UWB antenna (which in turn can include several UWB antenna units) can provide all the necessary sensor functions for the different vehicle functions.
- This advantageously makes it possible to provide a modular unit that is simple and inexpensive in design, easy to assemble and easy to connect (electrically and in terms of control technology and data technology), which can provide different vehicle functions in a vehicle in an advantageous manner.
- a modular unit can thereby be provided which is reliable in operation and which significantly increases safety when providing different vehicle functions and when operating vehicle assistance systems.
- the inventive idea also lies in the fact that the module unit uses UWB technology to communicate, d. H. Data exchange between two devices, and/or a detection, i. h To carry out the detection of objects and/or people with just one device, namely the module unit.
- the UWB antenna can have a common UWB antenna unit for the communication and for the detection or two separate UWB antenna units, so that the communication and the detection can be carried out simultaneously or sequentially.
- the UWB sensor unit can be used to achieve high-resolution detection, e.g. for distance measurement, with a resolution of a few millimeters to even micrometers, e.g. using a runtime measurement of the UWB pulses.
- the UWB sensor unit can detect the smallest movements, e.g. B. chest movements, ie breathing, heartbeat, head nod, etc. record, not only a presence and/or position of an object and/or person, such as B. a child in the child seat or a driver in the driver's seat, but also the vital functions of the person high resolution (with the resolution of a few millimeters to even micrometers) detect.
- a detection e.g. for the purpose of position determination, can comprise one or more UWB sensor units in order to provide the 2D or 3D resolution. With the help of one or more UWB sensor units, complicated movements can also be detected and analyzed with high resolution.
- the UWB antenna can be operated in a frequency range with a bandwidth of at least 500 MHz or at least 20% of the arithmetic mean of the lower and upper limit frequencies of the frequency band used, with the frequency range preferably between 30 MHz and 10.6 GHz , preferably between 3.0 to 10.6 GHz. In this way, communication and/or detection can be provided using UWB technology.
- An advantage of the invention can also be that the detection and communication using a UWB antenna has a limited range, for example of 10-50 m. Incorrect actuations or manipulations of the module unit can thus be effectively avoided. In particular, so-called man-in-the-middle attacks can be almost entirely prevented with the aid of the invention.
- the information such as the authentication information, is only transmitted over this limited range. If the module unit determines that no user can identify themselves within this limited range, access to the vehicle is securely denied. Unauthorized extension of the communication can be almost completely ruled out.
- the invention can provide for a module unit that the UWB antenna has one, in particular only one, preferably a common one for the communication and/or the detection, UWB antenna unit which is designed to, the communication and/or the Carry out detection in response to activation by the processing device.
- a module unit that the UWB antenna has one, in particular only one, preferably a common one for the communication and/or the detection, UWB antenna unit which is designed to, the communication and/or the Carry out detection in response to activation by the processing device.
- communication and detection can be carried out sequentially or alternately.
- a UWB antenna unit can in turn have a simple and compact design.
- the invention can provide in a module unit that the UWB antenna has at least a first UWB antenna unit and a second UWB antenna unit, wherein the first UWB antenna unit is designed to carry out the detection, and wherein the second UWB antenna unit is designed to carry out the communication.
- the UWB antenna units can be specifically designed to perform communication or detection. In this way, communication and detection can be performed with increased accuracy.
- the invention can provide that the UWB antenna is produced on the printed circuit board using a photolithographic method.
- the UWB antenna can be manufactured in a common manufacturing process with the printed circuit board, which can simplify the manufacture of the module unit. This also makes it possible to provide a simply constructed and compact modular unit.
- the invention can provide that the processing device and/or the UWB transceiver have/have a microcontroller.
- electronic components for operating and/or controlling the UWB antenna can be provided with a memory, which are programmable, so that the module unit can be adapted to the desired vehicle functions and to the circumstances and weather conditions at the place of use, etc.
- the invention can provide for a module unit that the UWB transceiver has at least a first UWB front-end module for a first UWB antenna unit and a second UWB front-end module for a second UWB antenna unit having.
- the first UWB antenna unit and the second UWB antenna unit can be operated simultaneously to allow flexibility and customer convenience in providing vehicle functions through the module unit.
- the UWB transceiver can be designed as a common UWB front-end module for a first UWB antenna unit and a second UWB antenna unit.
- the first UWB antenna unit and the second UWB antenna unit can be operated alternately.
- communication and detection can be carried out separately from one another, for example to prevent overlays.
- the invention can provide that the UWB transceiver has a switching unit in order to control a first UWB antenna unit and a second UWB antenna unit for carrying out the communication or for carrying out a detection. It is thus possible to switch between communication and detection in a simple manner.
- the switching unit can be designed as an electronic switch, preferably an HF switch. In this way, during operation of the module unit, it is possible to switch between communication and detection at high frequency, in order to enable vehicle functions to be made available quickly, reliably and conveniently.
- the invention can provide that the UWB transceiver is designed in such a way that the center frequency and/or the bandwidth of the UWB antenna can/is variably set when carrying out a detection. In this way it can be achieved that the detection by the UWB antenna can be flexibly adapted to different environmental influences, preferably humidity conditions.
- the invention can provide for a module unit that the UWB transceiver is designed in such a way that measurements through the UWB antenna when carrying out the detection using measurements through the UWB antenna, in particular using transit times of the UWB pulses, when carrying out the communication can be calibrated.
- These propagation times can be used to refine the accuracy of the detection by the UWB antenna, for example when measuring a distance, and to calibrate the UWB antenna to carry out the detection.
- the accuracy of the detection by the UWB antenna can be significantly increased as a result.
- the calibration of the UWB antenna to carry out the detection can be done with the help of a user.
- the calibration of the UWB antenna for carrying out the detection can be carried out independently and unnoticed by a user, e.g. in typical recurring situations due to user habits when the distance between the user's mobile device and the module unit is known.
- the invention can provide in a module unit that the UWB transceiver is designed in such a way that an angle of incidence of the UWB antenna can be variably adjusted.
- measurement areas for performing the detection can be adjusted and/or aligned in an advantageous manner. Consequently, the position can be determined very precisely using the detection. Even complicated movement patterns can be reliably detected.
- the module unit in particular the UWB transceiver, be designed to drive the UWB antenna to perform a detection to: a presence of a user or a person and / or an object, a distance to a user and / or a Object, a position of a user and/or an object, an approach of a user and/or an object, an activation action by a user, in particular comprising a specific movement sequence by a hand or a foot of a user, and/or a movement of a body part of a To capture user and / or an occupant.
- the modular unit can be used in a variety of ways in order to provide different vehicle functions and/or to support different vehicle assistance systems.
- the module unit in particular the UWB transceiver, can be designed to control the UWB antenna as a detection unit, preferably by evaluating a transit time of UWB pulses.
- a detection unit preferably by evaluating a transit time of UWB pulses.
- Child-in-child-seat detection sensor dog-in-vehicle detection sensor, proximity sensor, movement sensor, movement pattern recognition sensor, and/or monitoring sensor for vital functions, in particular heartbeat and/or respiration.
- the invention can provide that the module unit, in particular the UWB transceiver, is designed to control the UWB antenna for carrying out the communication, in particular using digital radio transmission, preferably using pulse phase modulation, in order to control information, in particular authentication information of a User to interrogate, receive and/or verify from a user-side mobile device.
- the authorization of the user can be verified.
- This can be used for safety-related vehicle functions such.
- B. access systems when locking and / or unlocking a central locking system can be advantageous.
- the functionality of many vehicle assistance systems can also be expanded in this way.
- the mobile device can be an electronic device that can be carried by the user.
- this is an ID transmitter that can be configured actively (by pressing a button) or passively (without pressing a button), thus a so-called active keyless entry system or a passive keyless entry system with the security device of the vehicle.
- the mobile device can also be designed as a mobile phone, in particular a smartphone, or tablet or smartwatch, in order to be able to achieve the desired data exchange using communication with the module unit.
- other functions to be triggered
- the mobile device on the vehicle For example, the lighting inside or outside the vehicle or a warning signal or the like can be controlled by the mobile device (eg switching the alarm system on and off or closing the windows, switching on the heating, etc.).
- Data can also be transmitted using communication, for example of navigation, music, video and/or message data etc. between the vehicle and the mobile device.
- the invention can provide that the module unit, in particular the UWB transceiver, is designed to transmit the results of the communication and/or the detection to a user-side mobile device.
- the module unit in particular the UWB transceiver
- the user-side mobile device such as. e.g. B. Driver change detection, child in child seat detection, etc.
- a module unit it can be provided that not only the results of the communication and/or the detection are transmitted to a user-side mobile device, in particular a mobile phone, but also a command code.
- the command code can be used to cause the mobile device to inform a user about the interaction with the module (ie about the results of the communication and/or the detection and/or about corresponding vehicle functions) activated using the module.
- the module unit can cause the mobile device on the user side, in particular a mobile phone, to inform a user about the interaction with the module unit (ie about the results of the communication and/or the detection and/or about corresponding vehicle functions) that have been activated using the module unit, to inform.
- the user's mobile device can provide haptic feedback, e.g. by vibration, e.g. B. using a piezo unit, an acoustic feedback, for example. By ringing, and / or a visual feedback, for example.
- a haptic, acoustic and/or visual feedback from the mobile device can be used for keyless and/or contactless access systems to a vehicle or to another object, such as. e.g. B. garage, be advantageous, e.g.: for locking and/or unlocking a central locking system, so-called active keyless entry systems or passive keyless entry systems, and/or for opening and/or closing movable ones Flaps, so-called movement and/or gesture control, preferably for contactless actuation of flaps, in particular tailgates, tank flaps, plug flaps, doors, door handles and/or mirrors, for actuating, e.g. for opening and/or closing, a garage door.
- the user can receive haptic/audible feedback via the mobile device's vibration/ringing that their movement/gesture has been recognized and/or that access to the vehicle has been granted and/or that a movable flap is being opened as intended, etc .. This can lead not only to an increase in comfort, but also to an increase in safety when triggering vehicle functions that are activated using the module unit.
- a haptic, acoustic and/or visual feedback from the mobile device can also be advantageous when navigating in a multi-storey car park, for example when reaching a garage door.
- vehicle assistance systems such.
- B. seat occupancy detection, child-in-child seat detection and / or dog-in-vehicle detection it can also be advantageous if the results of the communication and / or detection, which were carried out using the module unit, and / or be transmitted to a user-side mobile device via corresponding vehicle functions that have been activated using the module unit.
- a command code can additionally be transmitted from the module unit to the mobile device.
- the user's mobile device can issue a notification/warning/alert to inform the user.
- a message/warning/alarm can be issued in particular if, for example, there is still a child or a dog in the vehicle.
- the message/warning/alarm can be output visually, for example by means of indications on the display, haptically, for example by vibrating, and/or acoustically, for example by the mobile device ringing.
- a warning/alarm can be issued depending on the distance to the vehicle and/or a condition of the vehicle (e.g. central locking system closed).
- the frequency and/or the volume of the warning/alerting can be increased step by step if the user moves further away from the vehicle. This can be a warning cascade.
- a haptic and/or acoustic warning/alarm is given, e.g. by vibration and/or ringing, of the mobile device, possibly with a graduated frequency and/or volume of the warning/alarm, a so-called warning Cascade.
- the user can be informed via the mobile device that there is a child or a dog in the vehicle.
- the user can then be offered an input option via the mobile device to confirm that everything is in Order is, for example, when he just closes the garage for a moment or goes to the trunk.
- the mobile device can issue a haptic and/or acoustic warning/alarm. An alarm can also be triggered on the vehicle.
- a double safety function for locking doors/flaps can be provided. To do this, the user must actively and repeatedly, for example twice, request that the vehicle be locked before the locking is actually carried out.
- the invention can provide for a modular unit that the processing device and/or the interface are/is designed to display information, in particular authentication information of a user, and/or a function code for a corresponding vehicle function, calculated in particular by the processing device to transmit the on-board control unit, and/or that the processing device and/or the interface are/is designed to functionally connect the module unit to a security system, in particular an access control system, of the vehicle.
- a security system in particular an access control system
- the processing device can be designed to control the module unit to provide the following vehicle functions, such as:
- Movement and/or gesture control preferably for a contactless actuation of flaps, in particular tailgates, tank flaps, connector flaps, doors, door handles and/or mirrors.
- the processing device can be designed to control the module unit to provide the following vehicle functions, such as:
- Support at least one vehicle assistance system for interior monitoring such as in particular:
- Occupant monitoring for vital functions in particular heartbeat and/or respiration, preferably by evaluating a transit time of UWB pulses.
- processing device can be designed to control the module unit to provide the following vehicle functions, such as:
- Support at least one vehicle assistance system for outdoor surveillance such as in particular:
- Car2Car communication preferably to carry out a sensor fusion.
- the module unit is designed to provide gesture control in the interior for at least one of the following vehicle functions, such as e.g.:
- the modular unit can thus be used flexibly in the vehicle in an advantageous manner in order to be able to provide different vehicle functions for monitoring the interior space and monitoring the exterior space.
- processing device can be designed to control the module unit to provide the following vehicle functions, such as:
- the modular unit can be used in an advantageous manner inside and outside the vehicle in order to be able to provide even more vehicle functions and to increase customer comfort.
- the invention can provide that the interface has a plug in order to connect the modular unit electrically, electronically and/or in terms of data technology to the on-board control unit, with the plug in particular being designed to connect the modular unit as an individually manageable unit on or in the to fasten the vehicle.
- the modular unit can be easily and conveniently connected to or in the vehicle and preferably attached at the same time.
- the invention can provide for a modular unit that the interface, in particular the plug, has at least one latching element in order to fasten the modular unit in a form-fitting and/or non-positive manner on or in the vehicle.
- the module unit can be attached not only easily and conveniently but also reversibly, for example for the purpose of replacement or repair, on or in the vehicle.
- the invention can provide that the interface, in particular the plug, has at least one guide element around the modular unit to guide in a predefined direction when mounting on or in the vehicle. In this way, assembly of the modular unit on or in the vehicle can be facilitated.
- the guide element can also ensure that the module unit is attached in the correct position on or in the vehicle.
- the invention can provide that a housing element is provided in order to at least partially or completely enclose and/or seal the modular unit. In this way, the module unit can be protected from environmental influences.
- the housing element can preferably be made of plastic in order to let the UWB pulses through.
- the housing element can be designed in the form of a housing shell, which is preferably attached over the module unit after the module unit has been attached to or in the vehicle in order to cover and/or seal the module unit.
- a housing shell which is preferably attached over the module unit after the module unit has been attached to or in the vehicle in order to cover and/or seal the module unit.
- the housing element can have a first housing shell and a second housing shell in order to completely enclose and/or seal the modular unit.
- the modular unit can be provided as a completely closed and/or sealed structural unit before it is installed on or in the vehicle.
- the housing element has at least one latching element in order to fasten the housing element in a positive and/or non-positive manner on or in the vehicle or on the module unit, and/or that the housing element has at least one guide element in order to guide the housing element in the To perform attachment on or in the vehicle or on the module unit in a predefined direction.
- the housing element can be attached together with the module unit on or in the vehicle, or the housing element without the module unit to the module unit that is already attached to the vehicle, simply, conveniently and reversibly.
- the object according to the invention is achieved by a vehicle with at least one modular unit, which can be designed as described above. With the aid of the vehicle according to the invention, the same advantages are achieved that were described above in connection with the modular unit. Reference is made in full to these advantages here.
- the object according to the invention is achieved by a method for providing different vehicle functions in a vehicle, comprising the following steps:
- a modular unit in particular a combined, individually manageable and/or connected modular unit, preferably in the form of a multifunctional unit, preferably in the form of a hardware unit, which can be designed as described above,
- a detection unit Operating the module unit in a first mode as a detection unit, in particular for: a presence of a user and/or an object, a distance to a user and/or an object, a position of a user and/or an object, an approach of a user and /or an object, an activation action by a user, in particular comprising a specific movement sequence by a hand or a foot of a user, and/or a movement of a body part of a user and/or an occupant,
- module unit Operating the module unit in a second mode as a communication unit, in particular in order to request information, preferably authentication information, from a user.
- the invention can provide that the module unit is operated simultaneously in the first mode and in the second mode, or that the module unit is operated alternately in the first mode or in the second mode.
- the module unit is operated simultaneously in the first mode and in the second mode, or that the module unit is operated alternately in the first mode or in the second mode.
- one way or the other of operating the module unit can be advantageous.
- With an alternating operation of the module unit it can be ensured that the communication and detection do not overlap.
- communication and detection can take place in parallel and the vehicle functions can be provided quickly.
- the module unit can be used in the second mode to carry out communication, in particular using digital radio transmission, preferably using pulse phase modulation, in order to request information, in particular authentication information from a user, from a user-side mobile device, to receive and/or verify.
- information in particular authentication information from a user, from a user-side mobile device, to receive and/or verify.
- the user's authorization can be checked, which may be required for some safety-related vehicle functions.
- the invention can provide that the module unit is used in the second mode to send the results of the communication and/or the detection to the mobile device on the user side.
- the vehicle functions can be extended to variable vehicle-to-client systems that the module unit can provide.
- 1 shows a schematic representation of a module unit according to the invention with a UWB antenna unit
- 2 shows a schematic representation of a module unit according to the invention with several UWB antenna units
- FIG. 3 shows a schematic representation of a module unit according to the invention with several UWB antenna units
- FIG. 4 shows a schematic representation of a vehicle with several modular units according to the invention
- FIG. 5 shows a schematic representation of a module unit according to the invention with a plug
- FIG. 6 shows a schematic representation of a modular unit according to the invention with a housing element
- FIG. 7 shows a schematic representation of a modular unit according to the invention with two housing shells
- FIGS. 1 to 9 show a modular unit 100 according to the invention.
- the modular unit 100 can be designed structurally as a combined, individually manageable and/or connected modular unit 100 .
- the modular unit 100 may be embodied in the form of a multifunction unit, preferably in the form of a single hardware unit.
- the modular unit 100 in the sense of the invention is for providing different Vehicle functions F formed in a vehicle 200, vehicle 200 being shown schematically in FIG. 4, and exemplary vehicle functions F that can be provided using module unit 100 within the meaning of the invention, as shown in FIGS.
- the modular unit 100 according to FIGS. H. a data exchange between two devices 100, 300 (cf. the double arrow in FIG. 4 and in FIGS. 8 and 9) and/or a detection D, d. H. a detection of objects and/or persons with only one device, namely the modular unit 100 (cf. the single arrow in FIG. 4 and in FIGS. 8 and 9).
- the invention provides that depending on the communication K and/or the detection D, different vehicle functions F can be activated.
- a preferably electronic UWB transceiver 3 is arranged on circuit board 10 of module unit 100, which is designed to transmit and/or receive electrical signals from UWB antenna 1, which are used for communication K and/or detection D are specific.
- the UWB transceiver 3 can be constructed in the form of a UWB front-end module, which is designed for the requirements of UWB communication or detection and has, for example, at least one low-noise amplifier and/or a mixer on the receiver side.
- a preferably electronic processing device 4 for controlling the UWB transceiver 3 is arranged on the printed circuit board 10 of the module unit 100 in order to carry out the communication K and/or the detection D by the UWB antenna 1 .
- the processing device 4 can have a microcontroller, for example, for processing.
- a preferably electronic interface 5 is designed on circuit board 10 of module unit 100 for transmitting at least one result of communication K and/or detection D to a vehicle-mounted control unit 201 in order to control the different vehicle functions F depending on communication K and /or to trigger the detection D.
- the interface 5 can be an electronic interface which connects the module unit 100 electrically, in terms of control technology and data technology to a control device 201 of the vehicle 200 in order to, for. B. to transmit the results of the communication K and/or the detection D to the control unit 201 via the interface 5 and/or to trigger an activation of different vehicle functions F via the interface 5 depending on the communication K and/or the detection D .
- the interface 5 is also described in connection with FIG.
- the electrical signals sent and/or received by the UWB transceiver 3 and specific to the communication K and/or the detection D can be analyzed by the UWB transceiver 3 and/or the processing device 4 to produce a to obtain information or a result.
- a signal can include at least one item of information, which is transmitted via the detection D.
- a piece of information in the detection D can be, for example, whether a user B and/or an object is in the vicinity of the module unit 100, is moving or is moving in a special way, for example a specific movement sequence using a hand or a foot B1 executes.
- a kicking motion with a foot B1 of a user B is detected with the aid of the modular unit 100 upon detection D.
- FIG. H. Breathing a child in a child seat is monitored. With detection D, the distance to the child's chest is recorded using the transit time of the UWB impulses. During breathing, the thorax rises and falls, with the module unit 100 being able to record the changes in the distance to and thus the movements of the thorax with high resolution.
- a signal can also include at least one item of information which is transmitted via the communication K.
- Information in the communication K can, for. B. an authentication information ID about the user B, who performs an activation action, for example. To open a tailgate of the vehicle 200, as indicated in Figure 8. In the example of FIG. 9, the authentication information ID of a mother/father who can be informed of the child's vital signs is checked.
- information in the communication K can include not only the authentication information ID, but also navigation data, message data, music data and also actuation data for an on-board device, such as. e.g. B. heating, air conditioning and the like. Such data can preferably only be transmitted if the user B has previously identified himself at the module unit 100 .
- the signal for communication K can include a defined sequence of short UWB pulses.
- the defined sequence of short UWB pulses can be generated using pulse phase modulation as part of digital radio transmission.
- the phase shift between the UWB pulses symbolizes the information such.
- the module unit 100 can be easily and conveniently configured as a single node or satellite, which is designed as a single coherent hardware unit with all the necessary sensor functions, processing and control components and the interface 5 to the vehicle-side control unit 201 different locations in vehicle 200 to provide different vehicle functions F (see FIGS. 8 and 9) for different vehicle assistance systems.
- the module unit 100 uses the UWB technology for the communication K, i. H. Data exchange between two devices 100, 300 and/or for detection D, d. h Detection of objects and/or people with just one device 100.
- the UWB antenna 1 for communication K and for detection D can be a common UWB antenna unit (cf. Figure 1) or two separate UWB antenna units 1a, 1b (see FIGS. 2 and 3). It is conceivable that the communication K and the detection D can be carried out simultaneously (see FIG. 2) or sequentially (see FIGS. 1 and 3).
- the UWB antenna 1 can be operated in a frequency range with a bandwidth of at least 500 MHz to several MHz, with the frequency range preferably being between 30 MHz and 10.6 GHz, preferably between 3.0 and 10.6 GHz.
- the UWB antenna 1 can be applied to printed circuit board 10 using a photolithographic method, for example.
- the UWB transceiver 3 can have at least a first UWB front-end module 3a for a first UWB antenna unit 1a and a second UWB front-end module 3b for a second UWB antenna have unit 1b.
- the first UWB antenna unit 1a and the second UWB antenna unit 1b can be operated simultaneously.
- the UWB transceiver 3 can be designed as a common UWB front-end module for a first UWB antenna unit 1a and a second UWB antenna unit 1b.
- the UWB transceiver 3 can have a switching unit 2 in order to drive the first UWB antenna unit 1a and the second UWB antenna unit 1b to carry out the communication K or to carry out the detection D.
- the switching unit 2 can be designed, for example, as an electronic switch, preferably an HF switch.
- the center frequency and/or the bandwidth of the UWB antenna 1 can/can be variably adjusted when carrying out a detection.
- the detection D by the UWB antenna 1 can be flexibly adapted to different environmental influences, preferably humidity conditions.
- a module unit 100 within the meaning of the invention that measurements through the UWB antenna 1 when carrying out the detection D using measurements through the UWB antenna 1, in particular using transit times of the UWB pulses, when carrying out the communication K can be calibrated.
- the propagation times of the UWB pulses between the module unit 100 and a mobile device 300 on the user side, which is positioned at a known distance from the module unit 100 can be measured during the communication K.
- These runtimes can be used to to refine the accuracy of the detection D by the UWB antenna 1, for example in a distance measurement, and to calibrate the UWB antenna 1 to carry out the detection D.
- an angle of incidence of the UWB antenna 1 can be set variably, for example in order to set and/or align the measurement areas for carrying out the detection D.
- the module unit 100 can be used to carry out a detection D in order to detect: the presence of a user B and/or an object, a distance from a user B and/or an object, a position a user B and/or an object, a user B and/or an object approaching, an activation action by a user B, in particular comprising a specific movement sequence by a hand or a foot B1 of a user B (cf. Figure 8), and/or to detect a movement of a body part of a user B and/or an occupant, for example a child in the child seat (cf. FIG. 9).
- the module unit 100 can serve as a detection unit, preferably by evaluating a transit time of UWB pulses, such as e.g. e.g.:
- the UWB transceiver 3 can be designed to use the UWB antenna 1 to carry out the communication K, for example using digital radio transmission, e.g. B. using a pulse phase modulation to drive to an information such. B. to query, receive and/or verify authentication information ID of a user B from a user-side mobile device 300 .
- FIG. 9 shows that the UWB transceiver 3 can be designed to transmit the results of the communication K and/or the detection D to a mobile device 300 on the user side.
- the processing device 4 and/or the interface 5 can in turn be designed to transmit information, in particular an authentication information ID of the user B, and/or a function code, calculated in particular by the processing device 4, for a corresponding vehicle function to the vehicle-side control unit 201 (cf. Figures 1 to 3).
- the processing device 4 and/or the interface 5 can be designed to functionally connect the module unit 100 to a security system, in particular an access control system, of the vehicle 200 in order, for example, to implement a so-called active keyless entry system or a passive Form keyless entry system with the security system of the vehicle 200.
- the module unit 100 can be used to provide the following vehicle functions F, such as:
- Movement and/or gesture control preferably for a contactless actuation of flaps, in particular tailgates, tank flaps, connector flaps, doors, door handles and/or mirrors.
- the modular unit 100 can be used for interior monitoring, e.g. for at least one of the following vehicle assistance systems:
- Occupant monitoring for vital functions in particular heartbeat and/or respiration, preferably by evaluating a transit time of UWB pulses.
- module unit 100 can be used for outdoor surveillance, for example for at least one of the following vehicle assistance systems:
- Car2Car communication preferably to carry out a sensor fusion.
- modular unit 100 can be, for example, for at least one of the following vehicle assistance systems:
- the (particularly electronic) interface 5 can have a (particularly mechanical) plug 5a in order to connect the modular unit 100 to the vehicle-side control unit 201 mechanically, electrically and in terms of data technology.
- the connector 5a can be designed to fasten the modular unit 100 as an individually manageable unit on or in the vehicle 200.
- the plug 5a can have a latching element 101 in order to fasten the modular unit 100 on or in the vehicle 200 in a positive and/or non-positive manner.
- Connector 5a have at least one guide element 102 in order to guide the module unit 100 in a predefined direction when it is attached to or in the vehicle 200 and to facilitate the attachment of the module unit 100 .
- a housing element 20 can be provided in a modular unit 100 in order to enclose and/or seal the modular unit 100 at least partially or completely.
- the housing element 20 can be designed in the form of a housing shell, which can preferably be attached over the modular unit 100 after the attachment of the modular unit 100 on or in the vehicle 20 in order to cover and/or seal the modular unit 100.
- the housing element 20 can have a first housing shell 21 and a second housing shell 22 in order to completely enclose and/or seal the modular unit 100 .
- the modular unit 100 can be provided as a completely closed and/or sealed structural unit before it is installed on or in the vehicle 200 .
- housing element 20 can be designed as a one-piece, e.g. sleeve-like and/or cup-like housing element, e.g. B. can be designed with a lid in order to completely enclose and/or seal the modular unit 100 .
- the module unit 100 can be encapsulated within the housing element 20 with a casting compound.
- At least one latching element 23 can be provided on housing element 20 in order to positively and/or non-positively lock housing element 20 on or in vehicle 200 (cf. Figure 7) or on modular unit 100 (cf to fasten the figure 6).
- the housing element 20 can have at least one guide element 24 in order to guide the housing element 20 in a predefined direction when it is fastened on or in the vehicle 200 or on the modular unit 100 .
- the housing element 20 can be simply slid onto a corresponding guide of the modular unit 100 with the aid of the guide element 24 .
- the housing element 20 with the modular unit 100 accommodated therein can be slid onto a corresponding guide on or in the vehicle 200 with the aid of the guide element 24 .
- a vehicle 200 with at least one modular unit 100 which can be designed as described above, also represents an aspect of the invention, as illustrated in FIGS. 4, 8 and 9.
- a method for providing different vehicle functions F in a vehicle 200 also represents an aspect of the invention, comprising the following steps:
- Providing a module unit 100 which can be embodied as described above, operating the module unit 100 in a first mode I as a detection unit, operating the module unit 100 in a second mode II as a communication unit.
- the module unit 100 can be operated simultaneously in the first mode I and in the second mode II (cf. FIG. 2). Alternatively, it is conceivable that the modular unit 100 can be operated alternately in the first mode I or in the second mode II (see FIGS. 1 and 3).
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Lock And Its Accessories (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020126533.6A DE102020126533A1 (de) | 2020-10-09 | 2020-10-09 | UWB-Moduleinheit für ein Fahrzeug |
| PCT/EP2021/077846 WO2022074187A1 (de) | 2020-10-09 | 2021-10-08 | Uwb-moduleinheit für ein fahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4226504A1 true EP4226504A1 (de) | 2023-08-16 |
Family
ID=78134953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21790835.9A Pending EP4226504A1 (de) | 2020-10-09 | 2021-10-08 | Uwb-moduleinheit für ein fahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4226504A1 (de) |
| DE (1) | DE102020126533A1 (de) |
| WO (1) | WO2022074187A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021212575A1 (de) | 2021-11-09 | 2023-05-11 | Robert Bosch Gesellschaft mit beschränkter Haftung | System zum Erkennen eines Eintritts und/oder eines Austritts eines Objekts bezogen auf einen Detektionsraum |
| KR20240032410A (ko) * | 2022-09-02 | 2024-03-12 | 현대모비스 주식회사 | 차량용 uwb 통신을 위한 스위칭 안테나 |
| DE102022211889A1 (de) | 2022-11-10 | 2024-05-16 | Volkswagen Aktiengesellschaft | Verfahren zum Überwachen eines Kraftfahrzeugs und Kraftfahrzeug |
| DE102022213927A1 (de) * | 2022-12-19 | 2024-06-20 | Continental Automotive Technologies GmbH | Antennenvorrichtung und Betriebsverfahren für die Antennenvorrichtung zum Lokalisieren von Objekten sowie Kraftfahrzeug mit der Antennenvorrichtung |
| DE102024110730A1 (de) * | 2024-04-17 | 2025-10-23 | HELLA GmbH & Co. KGaA | Verfahren zum Betreiben einer Sensorvorrichtung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017144346A1 (de) * | 2016-02-26 | 2017-08-31 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Verfahren für eine aktivierung mindestens einer sicherheitsfunktion eines sicherheitssystems eines fahrzeuges |
| CN108701381A (zh) * | 2016-02-26 | 2018-10-23 | 胡夫·许尔斯贝克和福斯特有限及两合公司 | 带有用于通讯设备的接口的模块单元 |
| DE102017121762A1 (de) * | 2016-09-20 | 2018-03-22 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Verfahren zur Aktivierung mindestens einer Funktion eines Fahrzeugs |
-
2020
- 2020-10-09 DE DE102020126533.6A patent/DE102020126533A1/de active Pending
-
2021
- 2021-10-08 WO PCT/EP2021/077846 patent/WO2022074187A1/de not_active Ceased
- 2021-10-08 EP EP21790835.9A patent/EP4226504A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022074187A4 (de) | 2022-07-07 |
| WO2022074187A1 (de) | 2022-04-14 |
| DE102020126533A1 (de) | 2022-04-14 |
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