SE1230137A1 - Device for determining identity of a motor vehicle - Google Patents

Abstract

SUMMARY The present invention relates to a device (100) for determining the identity of a motor vehicle (200). The device comprises a single sensor which detects the engine speed and a digital memory (340) as well as a signal processor which converts the signal (400) the transducer sensor into an identity which does not change with changes in the speed. In one embodiment, the device may be housed in a single battery charger (100) for mobile phones (210) for connection to a vehicle cigarette lighter socket (230) for charging a mobile phone battery; with extended functionality for detecting, storing and transmitting to connected mobile telephone a set of parameters describing the identity of said vehicle (200); apparatus (100) an outlet (120) configured to allow transmission of information to a mobile telephone (210), and to charge the mobile telephone (210); measuring equipment (310; 320; 330); one memory (340); a processor (350) configured to receive detected parameters and store them in the memory (340), and / or to transfer the stored parameters from the memory (340) to the mobile telephone (210) when connected to the socket (120); a single voltage regulator (300) configured to convert the output voltage from the cigarette lighter socket (230) to a level suitable for pre-charging the mobile telephone (210).

Description

15 20 25 30 35 40 Rated voltage for vehicles is 6 Volts, Volts. for example, 13.8 volts is common for a 12 volt system in operation. electricity consumers use different voltage levels than the vehicle provides, so battery chargers that are connected to the vehicle's cigarette lighter sockets are normally both equipped with voltage conversion and voltage regulation voltage stabilization), l2 Volt, or 24 The voltage level in the vehicle's electrical system varies, however. to supply a stable 5 Volt voltage to external consumers which is usually connected via a USB connector.Even higher DC voltages than what the vehicle delivers can also be created in these battery chargers, for example for charging computer batteries to laptops.Also voltage can also be created in converters, e.g. for operating equipment that normally requires mains voltage around 230 Volts.

On the market there is a plethora of chargers in the form of connectors where connectors according to UL standard 2089 and ANSI / SAE J563 are used to connect the device to the vehicle, and (1) USB connector (female) or (2) USB connector on cable for connection to the external power consumer. In case (1) the connection is made with a separate USB cable, while in case (2) the connection is made directly. The reason for this is that nowadays the micro-USB device is used as standard for charging mobile phones, for example. (male) The introduction of so-called smart mobile phones and Android-based phones such as HTC Desire has increased (Smartphones) such as IPhone, Windows Phone, Blackberry, the availability of information technology - mobile phone functionality has multiplied from being a voice calling device, to a device with multifaceted area of use. a modern smart access to digital and computing capacity.

In summary, mobile phone has a number of sensors, communication, Dedicated functionality can be introduced utilizing the mobile phone's sensors and receivers, its capability for computing power and digital wireless communication with a central server.

For example, with an iPhone, the functionality can be downloaded via a so-called app in the App Store, or for an Android-based 10 15 20 25 30 35 40 mobile phone via Android Market / Google Play. Similar functionality is available for operating systems such as Unix, Linux, Windows and Windows Mobile. As an alternative to Smartphone, it is obvious that even so-called tablets can be used as an iPad or Samsung Galaxy Tab, or other equipment with the same functionality such as laptops.

Devices with position-based functions through GPS receivers or receivers connected to other satellite navigation systems have become popular. For vehicle use, this includes driving and service logs, navigation, control and monitoring of vehicle fleets in commercial traffic, insurance premiums, monitoring of driving behavior for behavior-based and speed monitoring (so-called ISA systems). These devices for vehicle use are often retrofitted. Alternatively, the functionality can be implemented in a mobile phone, as in the vehicle fixed installations. which is taken while traveling.

An example of how behavior-based insurance premiums for motor vehicles can be implemented is that the policyholder installs an app in their mobile phone - which means that the driver's behavior can be monitored while driving, where the behavior is monitored using the mobile phone's built-in sensors. signal processing capacity. data is passed on to a central server - the sensors, A further example of how behavior-based insurance premiums for motor vehicles can be implemented is that the policyholder has dedicated electronics installed in the vehicle - which allows the preparatory behavior to be monitored while driving, where the behavior is monitored using the built-in sensors. data as raw data from alternatively as signal-processed data performed with built-in signal processing capacity. is passed on to a central server - the sensors. An ISA system means that the vehicle's measured GPS speed is compared with the current speed limit of the road section, where that speed limit is available, for example, via an electronic map. 10 15 20 25 30 35 There are two problems associated with using vehicle-mounted equipment 0 The technical equipment and its installation in the vehicle involve both a cost, as dedicated equipment often needs to be installed by a professional in a workshop; with everything it means from time booking, travel times, the vehicle when it is in the workshop. indirectly or directly, lost working time and absence of 0 The technical equipment needs to communicate with the central node for which a built-in data modem with associated subscription is required.

There are two problems associated with charging a mobile phone with demanding functionality associated with the use of the mobile phone in a vehicle, namely: 0 high utilization of the mobile phone's capacity drains its battery, 0 the task that the mobile phone solves is connected to the vehicle and not to the mobile phone. o a driving record refers to the mileage of a vehicle, For example o a behavior-based insurance premium is determined by the vehicle being driven.

An embodiment of the invention is a mobile phone charger extended functionality. The extended functionality consists of identifying the vehicle's identity only from the outside of the sensor included in the battery charger. This is a solution to the two problems connected to a then processor and a memory. mobile phone stated above, 0 mobile phone charger keeps the battery charged, and how with of the 0 combination mobile phone and charger together form a fixed installation, as the charger has the opportunity to identify the vehicle and thus connect the mobile phone to the vehicle. 10 15 20 25 30 35 40 Said embodiment also offers a solution to the two problems associated with using vehicle-mounted equipment, when: 0 The installation is limited to the same torque as is required to insert a battery charger into the vehicle's cigarette lighter socket.

The installation thus does not need to be done by a professional, but a layman is sufficient. 0 The communication with the central node is made via the mobile phone's ability for mobile data traffic.

In summary, this is how the benefits of a permanently mounted so-called black-box are obtained, a mobile system based on a connected mobile phone. equipment, while having the benefits of Conceptually, this device is the least common denominator between a permanently mounted black-box and a system based solely on the driver's use of a mobile phone.

A further embodiment of the invention is a mobile phone charger with extended functionality. the functionality consists of identifying the vehicle's The extended identity only from outside the sensor in the battery charger, a memory, and an option to transfer said measurement data from said sensor from the mobile phone charger to the mobile phone when it is put on charge. then takes place in the connected mobile phone through calculations in Identification of the vehicle's identity its processor.

A further embodiment of the invention is a mobile phone charger with extended functionality. the functionality consists of identifying the vehicle's The extended identity only from outside the sensor in the battery charger, a memory, and an opportunity to transfer said measurement data from said sensor from the mobile phone charger to the mobile phone when it is put on charge. From the mobile telephone, said measurement data is transferred to a centrally located node comprising a processor via existing wireless technology. Identification of the vehicle's identity then takes place in the connected central node by calculations in its processor. Thus, there is generally a need for a device that can easily and efficiently determine the identity of a vehicle and transfer the identity to a connected mobile phone.

SUMMARY An object of the present invention is to provide an apparatus for identifying and storing a set of parameters representing the identity of the vehicle.

This object is achieved with a device intended to be connected to a vehicle's cigarette lighter socket, another powered socket in the vehicle for operation of external equipment, or by connection in a suitable wiring for power supply.

In one embodiment, the device comprises an outlet configured to allow the transfer of sensor data or the identity of the vehicle to a mobile telephone and to charge the battery of this mobile telephone. In this latter embodiment, the identification and storage of a set of parameters representing the identity of the vehicle can take place in at least one of said or at a central node to which device, mobile telephone, measurement data from said device has been transferred.

An advantage of the invention is that the installation of the equipment and the practical handling is directly connected to a mobile phone being connected for charging the battery, i.e. a handling which for the majority of all telephone owners is a well-established routine. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described more fully in the following with reference to the accompanying drawings, which illustrate examples of selected embodiments, in which: FIG. 1 shows an example of an embodiment of the invention, FIG. 2 shows examples of the use of the invention, FIG. 3 shows an example of a block diagram of an embodiment in accordance with the invention, FIG. 4 shows an example of a circuit diagram of an embodiment of vehicle monitoring in accordance with the invention, FIG. 5 shows an example of a measured signal from a circuit diagram of an embodiment of vehicle monitoring in accordance with the invention, FIG. Fig. 6 shows an example of spectral analysis of measured signal from a circuit diagram of an embodiment of vehicle monitoring in accordance with the invention; Fig. 7 shows an example of a set of parameters representing the identity of the vehicle based on spectral analysis of measured signal from a circuit diagram of an embodiment of vehicle monitoring in accordance with the invention; 8 shows how spectral components are regenerated by folding around the real axis, FIG. 9 is a flow chart of a device in accordance with this invention. DETAILED DESCRIPTION The present invention relates to electronic devices such as battery chargers for mobile phones in general and more specifically to a device for connection to a vehicle's cigarette lighter socket, another powered socket in the vehicle for operation of external equipment, or by connection in suitable wiring for power supply, battery. for charging a mobile phone The same reference numerals for similar or corresponding elements are used throughout the drawings.

Fig. 1. at one end has sockets for connection to the vehicle. shows an example of an embodiment where the device 100 Connection to the vehicle comprises the electrical signals GND (ground) via spring tongues and the vehicle voltage VC (nominal typically, 6 Volts, 12 Volts, or 24 Volts) and at the other end a socket 120 which is intended to connect one via center device 110, mobile phone for charging and to transfer information to or from the connected mobile phone.

The socket 120 may in one embodiment be a USB socket, for example a USB socket of Type A Female.

Fig. 2 shows an example of use in a car 200 where a mobile telephone 210 is connected with a cable 220 to the device 100, cigarette lighter socket 230. The device 100 communicates with where the device 100 is connected to the mobile telephone 210 of the vehicle 200 which is connected and activated by power supply and signal cable 220. In particular, this connection and the possibility of communication between the device 100 and the mobile telephone 210 means that information stored in the device can, if necessary, be transferred from the device 100 to the mobile telephone 210 for processing or further transmission to central server or other recipient of information.

In one embodiment, it is possible for the device 100 to communicate with the mobile telephone 210 which is connected and activated by power supply and signal cable 220 for the purpose of updating the software in device 100. For a person of skill, it is further apparent that signal cable in power supply and signal cable 220 can be replaced with a wireless connection by appropriate protocol such as IR technology (infrared), WirelesSUSB, radio standard.

Bluetooth, Wireless USB, Cypress ZigBee, WLAN or other available Fig. 3 shows a block diagram of an embodiment of the proposed invention. The block diagram shows the function where 300 is a voltage regulator that converts the vehicle's voltage to 5 Volts according to the standard for USB. Vehicle monitoring 310, (RF) receiver 330 generates data which is stored in memory 340 via the microprocessor 350.

Sensors 320 and Radio Frequency respectively A microprocessor 350 typically has the ability to receive and convert analog data to digital data such as directly handling digital data. clock signals.

The processor 350 controls the electronics and includes 360 indicating the antenna of the RF receiver which may be internal or external. In the latter case, sockets for external antenna on device 100 are also required.

It is obvious to the person skilled in the art that the device is supplied with voltage with VC Volt from the vehicle via contact 110 (voltage between VC and GND which is earth potential), ie voltage supply of electronics, sensors, memories and processor. It is further obvious that the functionality is only achieved when the device is energized. In order to achieve functionality when the vehicle is switched off or device 100 is not connected, it is further obvious that the device 100 can be provided with an internal battery, the vehicle. which can also be charged when the device is connected to Vehicle monitoring in block 310 means extraction of information from the supply voltage via socket 110. Examples of vehicle monitoring include: 0 The vehicle's battery voltage when the engine is switched off. 0 Vehicle operating voltage. 0 Frequency components or fluctuations in the vehicle's operating voltage.

It will be apparent to those skilled in the art how these electrical quantities can be digitized by the processor 350 for storage in memory 340. 10 15 Output from the measuring equipment 310; 320; 330 may, for example, be digitized by processor 350, or by separate A / D conversion, for storage in memory 340. 320; which can thus be sent more or less directly to the memory 340 for storage, (DMA).

Another possibility is that the measuring equipment 310; 330 directly provides digital values, for example via so-called Direct Memory Access Output from the measuring equipment 310; 320; 330 not only provides the ability to determine the identity of the vehicle, but also the ability for functionality such as ISA systems, navigation, behavioral insurance, the processor 350, both by direct calculation in memory storage 340, or combinations therebetween. In one embodiment, output data from the measuring equipment 310 is used; 320; 330 directly, or via caching in memory 340 for calculating an insurance premium based on stored history which represents the event history of the device such as location, time, mileage or driving behavior of the vehicle.

By sensors in block 320 is meant information extracting units which do not electrically measure the voltage of the vehicle via the connector 110, the area. gyroscope, The accelerometer can, for example, measure vibrations related to or measure via an antenna that works in RF- Examples of sensors include: accelerometer, magnetometer, or electronic compass. vehicle engine speed. It is obvious to the person skilled in the art how output data from sensors can be digitized by the processor 350 for The sensors now often have storage in memory 340. It is also known to the person skilled in the art that an output which directly provides digital care.

By RF receiver in block 330 is meant information extracting units that measure via an antenna operating in the RF area.

Global or other satellite receiver for position determination.

Examples of RF receivers include: GPS receiver Positioning System), Further examples are receivers that are designed to absorb radiated RF energy generated by the vehicle's ignition system, generator or electric motor. It is obvious to the person skilled in the art how output data from sensors can be digitized by the processor 350 for storage in memory 340. It is also known to the person skilled in the art that sensors now often have an output which directly gives digital values.

In one embodiment, sensors are provided which provide an absolute position, such as GPS receivers, and where said position is supplemented with attributes from a digital map, which is available in memory 340, built-in memory card, or via transmission of said attributes connected to a given position from mobile phone 210.

Fig. 4 shows an example of a circuit diagram constructed of resistors R, capacitances C and protection diodes D of an embodiment of vehicle monitoring 310 in accordance with the invention. It is obvious that the designation does not mean that components marked with R, (or C, D) have the same electrical component values, but that these are adapted to realize a given technical specification with regard to functionality of the electrical circuit.

The electrical signal 400 is a high-pass filtered version of There hidden electrical oscillations in the electrical signal 400 have a vehicle voltage measured via contact 110. frequency which is proportional to the engine speed. Voltage 400 can be digitized, for example, by the signal processing processor 350 performed in device 100 or stored in memory 340, 340. voltage level by appropriate amplification. or by separate A / D conversion, for storage in memory. Before digitizing voltage 400, it is adapted. In an alternative embodiment, the electrical signal 400 is formed by recording mechanical sensor data proportional to the motor speed from sensors in block 320 such as accelerometer and gyroscope.

In an alternative embodiment, the electrical signal 400 is formed by recording electromagnetic sensor data from sensors in block 320 proportional to the engine speed such as magnetometer, or electronic compass.

In an alternative embodiment, the electrical signal 400 is formed by recording RF sensor data proportional to the engine speed from sensors in block 330 such as radiated RF energy generated by the vehicle's ignition system, generator or electric or hybrid engine.

In an alternative embodiment, the electrical signal 400 is formed by recording data from multiple sensors in blocks 310; 320; 330, where the signals from the various sensors are combined with known sensor fusion technology.

Fig. 5 shows an example of electrical signal 400 recorded in a Ford Fiesta 1.6 Tdci at a constant engine speed of 2000 rpm. From FIG. 5 it can be seen that the voltage VC of the vehicle contains superimposed information which represents the identity of the vehicle 200. the information is noisy and difficult to describe with a set In the time domain in a given time scale are speed-independent parameters.

FIG. 6. shows an example 600 of spectral analysis of measured voltage 400 recorded in a Ford Fiesta 1.6 Tdci at a constant engine speed of 2000 rpm. FIG. 6. also shows an example 650 of spectral analysis of measured voltage 400 recorded in a Ford Fiesta l.6 Tdci at a constant From diagrams 600 and 650 it appears that the frequency of the dominant spectral component F1 is proportional to the engine speed, engine speed of 2500 rpm . marked with the dashed lines 605 and 655 respectively.

Diagram 600 in FIG. 6. dominant frequency Fl 605 for the case 2000 revolutions per minute.

Diagram 600 in FIG. 6. also shows the distances 620 to the fundamental tone F1 605 belonging to the first three harmonics F2, F3 and F4 given by multiples of the fundamental tone F1. Diagram 600 in FIG. 6. also shows the power ratio T1, T2 and T3 between said three harmonics F2, F3 and F4 and said fundamental tone F1. shows the distance 610 from the origin to the Diagram 650 in FIG. 6. dominant frequency Fl 655 for the case 2500 revolutions per minute.

Diagram 650 in FIG. 6. also shows the distances 670 to the fundamental tone F1 655 belonging to the first three harmonics F2, F3 and F4 given by multiples of the fundamental tone F1. Diagram 650 in FIG. 6. also shows power ratios T1, T2 and T3 between said three harmonics F2, F3 and F4 and said fundamental tone F1. shows the distance 660 from the origin to the 10 15 20 25 30 35 40 13 In FIG. 6. the triplet is constructed (T1, the ratio if linear scale is used) T2, T3) (the difference if the scale is in dB, alternatively the ratio between F1 and the harmonically related harmonics F2 = 2 F1, F3 = 3 F1, and F4 = 4 F1, generally Fk = k Fl where k is a positive integer greater than l.

(Tl, W, Tk) which characterizes the identity of the vehicle, where k = l gives a scalar k = 2 a doublet, k = 3 a triplet, by The choice of k gives the number of parameters value, and so on.

Then the frequencies F1, F2,. are harmonically related to each other, the maximum value of k is given by the analog bandwidth of the sensor. The frequency Fk = k F1 can be greater than the digital bandwidth given by the half-sampling frequency of the analog-to-digital conversion, or the so It is known that frequency components over frequencies corresponding to half called the Nyqvist frequency. the sampling frequency is folded down to the frequency interval zero to the Nykvist frequency.

Spectral analysis can be done by a number of known methods both on the analog electrical signal 400 and on its analog-to-digital converted equivalent, i.e. the digital variant of the signal 400. Spectral analysis can be done with a class of transformers which are only located in frequency which Time Discrete a class of Discrete Fourier Transform, Fourier Transform, Fourier Transform, Fast Fourier Transform; transformers that are both localized in time and frequency as a class of Wavelet transform, Short-Time Fourier transform; transformers that are both located in time, frequency and Transformers in the above groups also include chirplet transform. shell space.

Cosine transform, Karhunen-Loeve transform, In one embodiment digital spectral analysis is used with a class of transformers located only in frequency, such as Fast Fourier transform (FFT) based on the assumption that the analog-to-digital conversion of signal 400 takes place with such a high number of analog -digital converted measuring points can be processed over a period of time during which the vehicle's engine speed can be considered constant. sampling frequency (e.g. in the kilohertz range) Visually illustrated by FIG. 6 is that the fundamental F1 is dependent on the engine speed. What is further visually explained by FIG. 6 is that ratios T1, T2 and T3 are independent of the engine speed.

In one embodiment, the fundamental tone F1 is determined as the location of the dominant component that appears in the spectral analysis, i.e. at which frequency (absolute frequency for analog signal processing, or standardized frequency for digital signal processing) the most dominated spectral component is located.

Dominance of a spectral component is measured in one embodiment as the maximum energy, where the energy in each frequency component is measured by the amount of transformed data.

In an alternative embodiment, the fundamental tone F1 is determined as the location of the dominant component that appears in the spectral analysis, but where the location is limited to one or more distinct ranges of frequencies.

In an alternative embodiment, the fundamental tone F1 is determined as the location of the component related to the dominant component appearing in the spectral analysis as a harmonic frequency, or part of the location of the dominant component as half the distance from the origin.

FIG. 7. shows three examples of the triplet (T1, T2, T3) calculated from voltage 400 recorded in a Volvo 940 (700), Ford Fiesta 1.6 Tdci (710) and a BMW 520i (720) when the vehicles' engine speeds are varied in time intervals of 5 seconds , triplets based on 20 to 25 second measurement data 400 per resulting in vehicle. Visually illustrated by FIG. 7 then the different triplets tighten up non-crossing rafters. triplet 700; 710; 720 also gives an average value marked with circles in FIG. 7.

For each FIG. 7. shows that short data series where the engine speed varies over the normal engine speed ranges give rise to distinct triplets (T1, T2, T3) with small variations with respect to the speed. This allows the vehicles to be assigned individual identities based on triplets (T1, T2, T3). Through signal processing for a longer period of time, the averaging can be extended, which results in less uncertainty and more distinct identities. 10 15 20 25 30 35 40 l5 It is obvious to the expert that increased averaging means that uncertainty is reduced.

FIG. 8 shows how spectral components are regenerated by folding around the real axis. The component F1 and F2 = 2 F1 are both in the first Nyquist band and are represented by their true frequencies. Component 3 F1 is folded or mirrored in the real axis down to component F3 which lies between F1 and F2.

Component 4 F1 is folded or mirrored in the real axis down to component F4 which is between 0 and F1. The visible order of the harmonic tones is given in this case by F4, F1, F3, F2.

FIG. 9 is a flow chart of a device in accordance with this invention. Step S1 indicates the start mode of the method, which can occur periodically with a period time corresponding to the time interval it takes to fill the data buffer in step S2. A filled data buffer can mathematically be seen as a vector on which mathematical operations can operate. In step S3, the data vector is pre-filtered by removing any zero mean value across the vector, which corresponds to a simple high-pass filtering of data in the vector. It is obvious to the handy that step S3 may also include other ways of high-pass filtering data, alone or in combination with a low-pass filtering. bandpass filtering or bandpass filtering. In step S4, the spectral analysis takes place with a suitable transform. In a proposed embodiment, Fast Fourier Transform (FFT) is used in combination with the power spectrum being calculated by the amount square of FFT-transformed vector with pre-filtered data. In step S5, a search is made for the location of the dominant spectral component in said power spectrum, which constitutes F1. In step S6 the calculation of the identity parameters T1, T2, .. where T1 constitutes the ratio in 2 F1 and said In step S6 further calculation of the identity parameters T2 takes place where T2 constitutes the ratio in power effect at a harmonic frequency F2 = fundamental frequency F1. at a harmonic frequency F3 = 3 F1 and said fundamental frequency F1, the flow chart. up to k pieces of identity parameters. Step S7 Completion The present invention has a number of advantages over alternative solutions, including: The installation is limited to the same steps required to insert a battery charger into the vehicle's cigarette lighter socket.

The installation thus does not need to be done by a professional, but a layman is sufficient. This is a clear advantage over permanently installed systems that require professional installation. the equipment remains in which - It is a fixed installation, ie. the vehicle and is not removed when the driver leaves the vehicle, is a clear advantage over systems based on the fact that all functionality is present in the mobile equipment, such as in a smartphone.

This can also be expressed as the benefits of a permanently mounted system being obtained at the same time as the benefits of a mobile system.

The proposed system does not require its own subscription for wireless data transmission. This is a clear advantage over permanently installed systems. Wireless data transmission is made via the mobile telephone at or after the times when data has been transferred from the cigarette lighter device to the mobile telephone.

In summary, the present invention in combination with a mobile telephone in an installation according to Fig. 2 corresponds to an apparatus with several advantages over the prior art for calculating an insurance premium based on stored history which represents the device's event history such as location, time, mileage or driving behavior of the connected vehicle. .

The present invention can be implemented as a digital signal processor (DSP), in combination with the corresponding software. Another possible microprocessor, or an implementation is to use programmable logic in FPGA (field programmable gate arrays) or ASIC (application specific integrated circuit).

The above-described embodiments are to be considered as examples of the present invention. Those skilled in the art will appreciate that various modifications, combinations, and changes may be made to the described embodiments without departing from the scope of the present invention. However, the scope of the present invention is defined by the appended claims.

Claims (1)

1. 0 15 20 25 30 35 40 17 PATENT REQUIREMENTS. Device (100) for determining an identity of a motor vehicle (200) which is plugged into or connected to the cigarette lighter socket (230) and without other connection senses a vehicle's engine speed and converts this information into an identity which does not change with changes in speed characterized that it uses oscillations from the vehicle proportional to the engine speed sensed by a sensor included in the device to read the engine speed and that the device by means of a memory (340) saves at least one of: 0 said identity, 0 signal (400 ) from included sensor. . Device (100) for determining an identity of a motor vehicle (200) according to claim 1, characterized in that it contains at least one of: 0 an internal processor (350) with a calculation algorithm which determines the identity of the vehicle by spectral analysis of signal (400) from sensor, 0 external processor in mobile telephone (210) connected to device (100) by cabling (220) with a calculation algorithm which determines the identity of the vehicle by spectral analysis of signal (400) from included sensor, 0 processor in centrally located node to which signal (400) transmitted by mobile telephone (210) connected to device (100) by cabling (220) with a calculation algorithm which determines the identity of the vehicle by spectral analysis of signal (400) from included sensor. A device (100) for determining an identity of a motor vehicle (200) according to claim 2, characterized in that said calculation algorithm determines the identity of the vehicle by the relationship between the most dominant spectral component (F1) and one or more spectral components. . A device (100) for determining an identity of a motor vehicle (200) according to any one of the preceding claims, characterized in that a sensor 10 included in the device. A device (100). A device (100). A device (100). A device (100). A device (100) 18 for reading the engine speed comprises at least one of: 0 electric oscillation sensor, 0 mechanical vibration sensor, 0 radio frequency antenna. to determine an identity of a motor vehicle (200) according to any one of the preceding claims, characterized in that the connection (110) to the vehicle comprises at least one of the connectors according to: 0 UL standard 2089, 0 ANSI / SAE J563, 0 standard ISO 4165, 0 Magcode -don. to determine an identity of a motor vehicle (200) according to any one of the preceding claims, characterized in that it comprises a socket (120) which allows at least one of: 0 transmitting identity to connected mobile telephone, charging battery to connected mobile telephone. for determining an identity of a motor vehicle (200) according to claim 6, characterized in that said socket is a USB socket. to determine an identity of a motor vehicle (200) according to claim 3, characterized in that said other spectral components are harmonically related to said most dominant spectral component (F1). to determine an identity of a motor vehicle (200) according to any one of the preceding claims, characterized in that the identity enables the calculation of an insurance premium based on stored history represents the event history of the device. An apparatus (100) for determining an identity of a motor vehicle (200), further characterized by: measuring equipment (320; 330) parameters representing the status of the apparatus; according to any one of the preceding claims configured to detect (100) a memory (340) configured to store detected parameters, the stored parameters representing the event history of the device (100); A voltage regulator (300) configured to convert the output voltage from the cigarette lighter socket (230) to a level suitable for charging the mobile telephone (210). further characterized in that the device (100) is configured to enable the calculation of an insurance premium based on the stored parameters representing the event history of the device (100) linked to said identity of a motor vehicle (200).