Vehicle and method for vehicle counting

Abstract

The invention relates to a vehicle (10) comprising at least one transmitting antenna unit (22, 32, 42, 52) which is designed to transmit radio signal pulses (SI) in a defined transmission frequency range; at least one receiving antenna unit (24, 34, 44, 54), which is designed to receive a radio signal (S) in the defined transmission frequency range; and a computing unit (62), which is provided for evaluating a signal strength curve (SV) of the radio signal (S) received by the receiving antenna unit (24, 34, 44, 54), the computing unit (62) having a vehicle counting module (64), which is designed to identify vehicles (100, 102) passing by the vehicle (10) on the basis of the signal strength curve (SV) and to add them to form a count value.

Description

Technical Field

[0001] The invention relates to a vehicle and a method for counting vehicles. Background Art

[0002] Vehicle counting (or also traffic surveys) is well known and serves as a basis for describing traffic development and as a basis for noise and emission calculations. Vehicle counting or traffic counting can be carried out manually or automatically. In manual traffic counting, the number of vehicles at the nodes is recorded with the help of counting tables. Manual traffic counting is prone to errors and time-consuming, because the personnel must count the vehicles passing by with the help of counting tables at predefined nodes. In automatic traffic counting, sensor devices are arranged at predefined nodes, by which vehicles passing by are detected, the sensor signals are evaluated in an evaluation unit and the detected vehicles are added to form a count value. Automatic traffic counting is complex and expensive, because the sensor devices must be installed at the predefined nodes. In addition, this automatic traffic counting with sensor devices that are permanently preinstalled at the nodes can only be implemented at predefined locations and is therefore inflexible. Summary of the invention

[0003] The object of the present invention is to provide a vehicle with which traffic counting can be carried out in a simple, cost-effective and reliable manner.

[0004] This object is achieved by the features of claim 1 and claim 14 .

[0005] The vehicle according to the invention comprises at least one transmitting antenna unit, which is designed to transmit radio signal pulses within a defined transmission frequency range, and at least one receiving antenna unit, which is designed to receive radio signals within the transmission frequency range.

[0006] The transmitting antenna unit and the receiving antenna unit are preferably based on ultra-wideband (UWB) technology, which is known in principle and allows data transmission at relatively high data rates over short distances. Such transmitting antenna units and receiving antenna units based on ultra-wideband technology are usually used in vehicle technology. The transmitting antenna unit and the receiving antenna unit are in particular components of a radio remote control system, which is used for access control of the vehicle. In this case, in particular, the person authorized to unlock the vehicle is identified by signal transmission between the vehicle and a mobile device located in the vehicle environment, and the vehicle doors are unlocked or opened automatically based on this. The transmission frequency range used here is preferably 6.5-8.0 GHz.

[0007] Due to environmental influences, radio signals are usually affected during transmission, so that the radio signal received by the receiving antenna unit is different from the radio signal transmitted by the transmitting antenna unit. In particular, the radio signal received by the receiving antenna unit can include different numbers of reflections of the transmitted radio signal depending on the environment. Since the transmission path between the transmitting antenna unit and the receiving antenna unit is also called a radio channel, the radio signal received by the receiving antenna unit is also called a channel impulse response (English: Channel Impulse Response, CIR). Preferably, the transmitting antenna unit is configured to transmit a defined radio signal pulse sequence. The radio signal pulses transmitted by the transmitting antenna unit usually have a pulse duration in the nanosecond range.

[0008] The vehicle also includes a computing unit, which is configured to evaluate the signal strength curve of the radio signal received by the receiving antenna unit, preferably the signal strength curve after high-pass filtering, so as to detect only moving objects, i.e., vehicles passing by, and not static objects. The computing unit usually includes a microcontroller or other types of programmable computing mechanisms, and the functions of the computing unit can be implemented in hardware and / or software. The computing unit can be implemented as a component installed separately on the vehicle or alternatively can also be implemented in a common device with the transmitting antenna unit and / or the receiving antenna unit. In addition, it is also conceivable that the computing unit is formed by a controller or other existing programmable computing mechanism already present in the vehicle, which is coupled at least to the receiving antenna unit and is programmed accordingly, for example, by entering a software component.

[0009] Since the transmitting antenna unit is usually configured to radiate radio signal pulses at a relatively large solid angle, and the receiving antenna unit is usually configured to receive incoming radio signals from a relatively large solid angle, the received radio signal usually includes one or more reflections of the transmitted radio signal pulse, which, due to the longer transmission path, arrive at the receiving antenna unit with a time delay compared to the unreflected radio signal pulse. The number of reflections contained in the received radio signal is related to the effective reflectivity of the environment, which is in particular related to the number, size and surface properties of the objects present in the environment. In addition, the maximum signal strength is also usually dependent on the effective reflectivity of the environment.

[0010] The calculation unit comprises a vehicle counting module which is designed to identify vehicles passing by the vehicle based on the signal strength curve and to add them up to form a count value. Specifically, the vehicle counting module is configured to evaluate the overall so-called CIR of the receiving antenna unit with respect to identifying vehicles passing by. For example, a plurality of amplitudes, i.e. peak values, within a defined interval of the CIR can be determined in order to identify vehicles passing by. In principle, the calculation unit can be configured to evaluate any characteristic of the CIR curve which varies as a function of the number of reflections in order to identify vehicles passing by based on this.

[0011] In particular, the vehicle counting module is designed to detect changes in the signal strength curve between different time periods and based on this detect vehicles passing by. For example, if the signal strength curve changes from a weakly reflective environment to a strongly reflective environment caused by a vehicle, the vehicle counting module can accurately detect this change and infer a vehicle passing by based on this.

[0012] As soon as a vehicle passing by is detected by the vehicle counting module, an increment of the count value is triggered in order to count the vehicles passing by. The count value representing the number of vehicles within a predefined period is preferably stored in a memory of the computing unit and can be called up or downloaded at a later time by a corresponding read process. Alternatively, the count value can also be automatically transmitted from the vehicle or from the computing unit to a center provided for this purpose, in particular via a wireless connection.

[0013] Thus, vehicle counting or traffic counting can be performed in a simple manner using the vehicle, which only needs to be positioned or parked at the location where the vehicle counting is to be performed. This also provides a relatively high degree of flexibility in vehicle counting or traffic counting, since the vehicle can be easily positioned at almost any location. Furthermore, preferably a technology, namely UWB technology, and the components required for this are used for vehicle counting, which are already present on the vehicle for other purposes and in a completely different manner.

[0014] The vehicle counting module is preferably designed to determine the driving direction, driving speed and / or driving side of the vehicles passing by based on the signal strength curve. In addition to counting vehicles, the driving speed, driving side and / or driving direction of the vehicles passing by can thus also be detected. In particular, knowing the driving speed and driving direction is particularly helpful in assessing the traffic situation at a specific location.

[0015] The driving direction and / or driving speed of the vehicle passing by is preferably determined using the Doppler effect. The Doppler effect is understood to be a perceptible change in the frequency of a sound wave, light wave or radio wave caused by a relative movement between a source and an observer. If the source and the observer move towards each other, the frequency increases. If they move away from each other, the frequency decreases.

[0016] When determining the direction of travel, the signal strength curve can be observed and based on this, i.e. based on the frequency change of the signal strength curve, the direction of travel of the vehicle passing by can be determined with knowledge of the direction of the radio signal pulses emitted by the transmitting antenna unit. When a vehicle approaches, the frequency will increase. As soon as the vehicle leaves, the frequency decreases. Preferably, the vehicle counting module is designed to determine a count value assigned to the first direction of travel and a count value assigned to the second direction of travel based on the direction of travel. In this way, the number of vehicles passing by the vehicle can be determined in both directions.

[0017] When determining the driving speed, the gradient of the frequency change can be evaluated. In addition to counting vehicles, the driving speed of vehicles passing by can thus be detected. Knowing the driving speed can be used to assess the traffic situation at a specific location.

[0018] When determining the driving side, the signal strength curve can be evaluated in such a way that, knowing the position of the receiving antenna unit and the position of the transmitting antenna unit, in particular in the case of an eccentric positioning in the transverse direction of the vehicle, the distance between the antenna unit and the vehicle currently passing by can be determined from the signal strength curve and the driving side can be inferred from this. The distance can be determined from the signal strength curve by means of a known sampling frequency and a known speed of light at which radio signals propagate.

[0019] Alternatively, the driving direction, driving side and / or driving speed can be determined by a plurality of receiving antenna units. For this purpose, the vehicle preferably has a plurality of receiving antenna units spaced apart from one another in the vehicle transverse direction and / or in the vehicle longitudinal direction, the receiving antenna units being each configured to receive radio signals in the transmission frequency range, the signal strength curves of the radio signals received by the plurality of receiving antenna units being able to be evaluated by the computing unit.

[0020] In order to determine the driving direction and / or driving speed, a plurality of receiving antenna units are provided which are spaced apart from each other in the longitudinal direction of the vehicle, and the vehicle counting module is designed to determine the driving direction and / or driving speed of a vehicle passing by by comparing the signal strength curves of different receiving antenna units. In this case, the signal strength curves of the plurality of receiving antenna units are evaluated and compared with each other by the vehicle counting module, a time shift of a signal value or at least one peak value assigned to a vehicle passing by is determined by comparing the two signal strength curves, and the driving direction and / or driving speed is determined based on this by the known distance between the two receiving antenna units.

[0021] In order to determine the driving side, a plurality of receiving antenna units spaced apart from one another in the transverse direction of the vehicle are preferably provided, and the vehicle counting module is designed to determine the driving side of the vehicle passing by by comparing the signal strength curves of the different receiving antenna units. The driving side is inferred here depending on at which receiving antenna unit the change in the signal strength curve is determined. In particular, one receiving antenna unit is arranged on the driver's side and another receiving antenna unit is arranged on the front passenger side.

[0022] Furthermore, a plurality of transmitting antenna units spaced apart from one another in the transverse direction of the vehicle and / or in the longitudinal direction of the vehicle may also be provided, the transmitting antenna units being each provided for transmitting radio signal pulses in a defined transmission frequency range, and a control unit being provided, the control unit being provided for controlling the plurality of transmitting antenna units such that radio signal pulses can be selectively transmitted by each of the transmitting antenna units. The plurality of transmitting antenna units are designed here for installation at different locations of the vehicle and thus allow selective transmission of radio signal pulses from different locations of the vehicle. Preferably, the control unit is provided for sequentially operating the plurality of transmitting antenna units such that radio signal pulses are transmitted successively by each of the transmitting antenna units.

[0023] In a preferred design, a communication interface is provided, which is connectable to a mobile device and / or to a user interface provided in the interior space of the vehicle, so that the vehicle counting module can be activated by an operation on the mobile device and / or on the user interface. The communication interface is used to activate the vehicle counting module and thus the vehicle counting. Thus, the vehicle counting is performed only when it makes sense. The mobile device can be coupled to the communication interface contactlessly, and the mobile device has an application, through which the vehicle counting process or the vehicle counting module can be activated. In addition, the vehicle counting module or the vehicle counting can be activated by a user interface, such as an operating display. Preferably, the measurement start and / or the measurement duration can be received via the communication interface, and the measurement start and / or the measurement duration can be set via the mobile device or the user interface.

[0024] Preferably, at least one transceiver device is provided, which includes both a transmitting antenna unit and a receiving antenna unit and is configured to operate the transmitting antenna unit and the receiving antenna unit simultaneously. In this way, the transmitting antenna unit and the receiving antenna unit can be compactly integrated in the transceiver device, whereby the number of components to be installed can be reduced. By operating the transmitting antenna unit and the receiving antenna unit simultaneously, a radio signal pulse transmitted by a transmitting antenna unit of a transceiver device can be reliably received by a receiving antenna unit of the same transceiver device.

[0025] The object is also achieved by a method for counting vehicles using a vehicle according to any one of claims 1 to 13. With regard to the advantages of the method, reference is made to the preceding paragraphs.

[0026] Thus, a vehicle and a method for counting vehicles are provided, by which vehicles can be counted in a simple and reliable manner, the vehicle only having to be positioned or parked at the location where the vehicle count is to be carried out. The vehicle count is carried out automatically by the vehicle. Thus, a relatively high degree of flexibility can also be provided in vehicle counting or traffic counting, since the vehicle can be easily positioned at almost any location. In addition, components that are already provided on the vehicle and are used for other purposes can be used for traffic counting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is described in detail below with reference to the accompanying drawings. The accompanying drawings are as follows:

[0028] Figure 1 Schematically shows a vehicle according to the invention, which has a computing unit and four transceiver devices, each including a transmitting antenna unit and a receiving antenna unit, and two vehicles passing by the vehicle;

[0029] Figure 2 In the case of a weakly reflective vehicle environment, Figure 1 received by one of the receiving antenna units in response to the Figure 1 an exemplary signal strength curve of a radio signal of a radio signal pulse transmitted by one of the transmitting antenna elements in; and

[0030] Figure 3 Figure 1 shows a highly reflective vehicle environment caused by at least one passing vehicle. Figure 2 An exemplary signal strength curve of a radio signal in FIG. DETAILED DESCRIPTION

[0031] Figure 1 A vehicle 10 according to the invention is shown purely schematically, comprising four transceiver devices 20 , 30 , 40 , 50 and a control device 60 . Figure 1Two further vehicles 100 , 102 are shown, with vehicle 10 being stationary and vehicles 100 , 102 passing vehicle 10 .

[0032] All transceiver devices 20, 30, 40, 50 of the vehicle 10 are of identical construction and are each mounted in the region of the bumper or in the region of the fender of the vehicle 10. Specifically, two transceiver devices 20, 30 are mounted in the front region of the vehicle 10 and two transceiver devices 40, 50 are mounted in the rear region of the vehicle 10, the transceiver devices 20, 40 being mounted on the front passenger side 12 and the transceiver devices 30, 50 being mounted on the driver side 14.

[0033] The four transceiver devices 20, 30, 40, 50 are based on the known ultra-wideband technology and each include a transmitting antenna unit 22, 32, 42, 52 and a receiving antenna unit 24, 34, 44, 54. The transmitting antenna unit 22, 32, 42, 52 is configured in a known manner to transmit wideband radio signal pulses SI in a defined transmission frequency range, and the receiving antenna unit 24, 34, 44, 54 is configured in a known manner to receive radio signals S in the transmission frequency range used by the transmitting antenna unit 22, 32, 42, 52. The four transceiver devices 20, 30, 40, 50 are each configured to operate the respective transmitting antenna unit 22, 32, 42, 52 and the respective receiving antenna unit 24, 34, 44, 54 simultaneously, i.e., in such a way that the respective receiving antenna unit 24, 34, 44, 54 receives the radio signal S, while the respective transmitting antenna unit 22, 32, 42, 52 transmits the radio signal pulses SI.

[0034] The control device 60 is here arranged in the engine compartment of the vehicle 10 by way of example, but can in principle be installed at any location in the vehicle 10. The control device 60 comprises a computing unit 62 and a control unit 68 and is usually coupled to the four transceiver devices 20, 30, 40, 50 via cable connections.

[0035] The control unit 68 is configured to control the four transceiver devices 20, 30, 40, 50. In particular, the control unit 68 is configured to control the transceiver devices 20, 30, 40, 50 so that the radio signal pulses SI can be selectively transmitted by the transmitting antenna unit 22, 32, 42, 52 of each of the four transceiver devices 20, 30, 40, 50.

[0036] The calculation unit 62 is provided for evaluating the signal strength curve SV of the radio signal S received by the receiving antenna units 24, 34, 44, 54 of the four transceiver devices 20, 30, 40, 50, in particular the curve of the so-called CIR value of the corresponding receiving antenna units 24, 34, 44, 54. In this case, the calculation unit 62 has a vehicle counting module 64 according to the invention, which is designed to detect and count the vehicles 100, 102 passing by the vehicle 10 based on the signal strength curve SV of the receiving antenna units 24, 34, 44, 54, that is, to add them to form a count value. The count value is stored in a memory (not shown) of the calculation unit 62 and can be called up or downloaded at a later time by a corresponding read process.

[0037] In particular, the vehicle counting module 64 is designed to detect changes in the reflection coefficient and thus changes in the signal strength curve SV, in particular changes in the signal strength curve between a highly reflective vehicle environment and a weakly reflective vehicle environment, and based on this, detect passing vehicles 100, 102 and count all detected passing vehicles 100, 102. In this case, the signal strength curve SV changes from a weakly reflective vehicle environment (see Figure 2 ) changes to a highly reflective vehicle environment caused by vehicles 100, 102 (see Figure 3 ). Figure 2 and Figure 3 1 and 2 show exemplary signal strength curves SV of radio signals S received by receiving antenna units 24, 34, 44, 54 in response to radio signals SI transmitted by transmitting antenna units 22, 32, 42, 52, ie, curves of signal strength SA with respect to time t. Specifically, Figure 2 and Figure 3 The curves respectively show the CIR values ​​of the receiving antenna units 24, 34, 44, and 54. Figure 2 In and Figure 3 In FIG. 1 , the unreflected radio signal pulse SI can be clearly identified at the beginning of the corresponding signal strength curve SV. Figure 2 In the signal strength curve SV shown, ie for a weakly reflective vehicle environment, only a single reflection R of the radio signal pulse SI can be identified in the further process, whereas Figure 3 In the signal strength curve SV shown, ie for a highly reflective vehicle environment, multiple reflections R of the radio signal pulse SI can be identified in the further course of the process.

[0038] By means of transceiver devices 20 , 30 , 40 , 50 arranged on the driver and passenger sides 12 , 14 in the front and rear regions, passing vehicles 100 , 102 can be detected on both sides and can also detect driving side 12 , 14 , driving direction FR and driving speed of passing vehicles 100 , 102 .

[0039] In order to determine the driving direction FR and / or the driving speed, the signal strength curves of the receiving antenna units 34, 54 assigned to the driver's side 14 are evaluated and compared with each other by the vehicle counting module 64, and the time shift of the signal value or at least one peak assigned to the passing vehicle is determined by comparing the two signal strength curves SV. By knowing the shift of the peak, on the one hand, the driving direction FR of the passing vehicle 100, 102 can be determined by determining which transceiver device 30, 50 first detected the passing vehicle 100, 102 in time. On the other hand, the driving speed can be determined by the time shift of the peak and the known distance between the two transceiver devices 30, 50. Alternatively, the driving direction FR and the driving speed of the passing vehicle can be determined by using the known Doppler effect.

[0040] Additionally, driving side 12 , 14 , ie, whether vehicle 100 , 102 is passing by on passenger side 12 or driver side 14 , can be automatically determined by inferring the driving side based on which of receiving antenna units 24 , 34 , 44 , 54 the change in signal strength curve SV is determined.

[0041] The control device 60 or the computing unit 62 also includes a communication interface 66 for coupling with a mobile device 80 and / or with a user interface 70 arranged in the vehicle interior space. Through the coupling of the computing unit 62 with the mobile device 80 and / or the user interface 70, the vehicle counting module 64 and thus the vehicle counting can be activated as needed. The mobile device 80 can be coupled to the communication interface 66 without contact, and the mobile device 80 has an application program, through which the vehicle counting process or the vehicle counting module can be activated. In addition, the vehicle counting module or the vehicle counting can be activated by the user interface 70, such as an operating display, which is continuously connected to the vehicle counting module 64. In addition, the future measurement start and / or the measurement duration can be set by the mobile device 80 and / or the user interface 70. In addition, the communication interface 66 can be designed to be bidirectional, so that the count value can be transmitted to the mobile device 80.

[0042] Thus, a vehicle 10 is provided, by which vehicles can be counted in a simple and reliable manner, the vehicle 10 only having to be positioned or parked at the location where the vehicles are to be counted. The vehicle counting is performed automatically by the vehicle 10. This also provides a relatively high degree of flexibility in vehicle counting or traffic counting, since the vehicle 10 can be easily positioned at almost any location.

[0043] Reference numerals list

[0044] 10 Vehicles

[0045] 100 Passing vehicles

[0046] 102 Passing vehicles

[0047] 12 Passenger side

[0048] 14 Driver side

[0049] 20 transceiver devices

[0050] 22 transmitting antenna units

[0051] 24 receiving antenna units

[0052] 30 transceiver device

[0053] 32 transmitting antenna units

[0054] 34 receiving antenna units

[0055] 40 transceiver device

[0056] 42 transmitting antenna units

[0057] 44 receiving antenna units

[0058] 50 transceiver device

[0059] 52 transmitting antenna units

[0060] 54 receiving antenna units

[0061] 60 Control Device

[0062] 62 computing units

[0063] 64 vehicle counting module

[0064] 66 communication module

[0065] 68 Control Unit

[0066] 70 User Interface

[0067] 80 mobile devices

[0068] R-Reflection

[0069] Radio signal

[0070] SA signal strength

[0071] SI radio signal pulse

[0072] SV signal intensity curve

[0073] t time

[0074] FR driving direction

Claims

1. Vehicles, including: at least one transmitting antenna unit (22, 32, 42, 52) which is configured to transmit radio signal pulses (SI) within a defined transmission frequency range; at least one receiving antenna unit (24, 34, 44, 54) arranged to receive radio signals (S) within the defined transmission frequency range; and A calculation unit (62) is provided for evaluating a signal strength curve (SV) of a radio signal (S) received by a receiving antenna unit (24, 34, 44, 54), wherein the calculation unit (62) has a vehicle counting module (64) which is designed to identify vehicles (100, 102) passing by the vehicle (10) based on the signal strength curve (SV) and to add them up to form a count value.

2. The vehicle according to claim 1, wherein: The vehicle counting module (64) is designed to determine the driving direction (FR), driving side (12, 14) and / or driving speed of a passing vehicle (100, 102) based on the signal strength curve (SV).

3. The vehicle according to claim 2, wherein: The vehicle counting module (64) is designed to respectively determine a count value based on a driving direction (FR) and / or to respectively determine a count value based on a driving side (12, 14).

4. The vehicle according to claim 2 or 3, wherein: The vehicle counting module (64) is designed to determine the driving direction (FR) and / or driving speed of a passing vehicle (100, 102) by using the Doppler effect.

5. A vehicle according to any one of the preceding claims, comprising: a plurality of receiving antenna units (24, 34, 44, 54) spaced apart from one another in a transverse direction of the vehicle and / or in a longitudinal direction of the vehicle, the receiving antenna units being each configured to receive a radio signal (S) in the transmission frequency range, wherein a signal strength curve (SV) of the radio signal (S) received by the receiving antenna units (24, 34, 44, 54) can be evaluated by a computing unit (62); and / or a plurality of transmitting antenna units (22, 32, 42, 52) spaced apart from one another in a transverse direction of the vehicle and / or in a longitudinal direction of the vehicle, the transmitting antenna units being each configured to transmit radio signal pulses (SI) within a defined transmission frequency range; and A control unit (68) is configured to control the plurality of transmitting antenna units (22, 32, 42, 52) so that a radio signal pulse (SI) can be selectively transmitted by each of the transmitting antenna units (22, 32, 42, 52).

6. The vehicle according to claim 2 or 3 and 5, comprising: A plurality of receiving antenna units (24, 34, 44, 54) are spaced apart from one another in the longitudinal direction of the vehicle, wherein the vehicle counting module (64) is designed to determine the driving direction (FR) and / or driving speed of a passing vehicle (100, 102) by comparing signal strength curves (SV) of different receiving antenna units (12).

7. The vehicle according to claim 2 or 3 and 5, comprising: A plurality of receiving antenna units (24, 34, 44, 54) are spaced apart from one another in a transverse direction of the vehicle, wherein the vehicle counting module (64) is designed to determine the driving side (12, 14) of a passing vehicle (100, 102) by comparing signal strength curves (SV) of different receiving antenna units (24, 34, 44, 54).

8. A vehicle according to any preceding claim, comprising: A communication interface (66) is connectable to a mobile device (80) and / or to a user interface (70) disposed in the interior space of the vehicle, so that the vehicle counting module (64) can be activated by operating the mobile device (80) and / or the user interface (70).

9. The vehicle according to claim 8, wherein: A measurement start and / or a measurement duration can be received via the communication interface (66), and the measurement start and / or the measurement duration can be set via the mobile device (80) or the user interface (70).

10. A vehicle according to any preceding claim, comprising: At least one transceiver device (20, 30, 40, 50) comprises both a transmitting antenna unit (22, 32, 42, 52) and a receiving antenna unit (24, 34, 44, 54) and is configured to operate the transmitting antenna unit (22, 32, 42, 52) and the receiving antenna unit (24, 34, 44, 54) simultaneously.

11. A vehicle according to any one of the preceding claims, wherein: The transmitting antenna unit (22, 32, 42, 52) and the receiving antenna unit (24, 34, 44, 54) are assigned to a radio remote control system.

12. A vehicle according to any one of the preceding claims, wherein: The transmitting antenna unit (22, 32, 42, 52) and the receiving antenna unit (24, 34, 44, 54) are based on ultra-wideband technology.

13. A vehicle according to any one of the preceding claims, wherein: The vehicle counting module (64) is designed to identify vehicles (100, 102) passing by the vehicle (10) based on a high-pass filtered signal strength curve (SV).

14. Method for counting vehicles using a vehicle (10) according to any one of claims 1 to 13.

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