RU2232687C1 - Car functional members remote control device - Google Patents

Abstract

FIELD: transport engineering; car electronic equipment.

SUBSTANCE: proposed device contains sound fragments source and microphone connected by sound channel, noise suppressor unit, microcontroller with control unit, memory unit, analog-to-digital converter, analyzer of amplitude-frequency and time parameters of sound fragment, comparator unit and multicriterional resolver and car electronic protection system coupled with control units of car functional members. Multicriterional resolver includes memory register, multiplier, summer and threshold unit. Proposed device features enlarged operating capabilities providing remote starting of car engine and hi-jacking control using personal electronic devices which can store and reproduce different sound fragments (such as cellular telephone set, electronic alarm clock).

EFFECT: improved protection of car.

5 cl, 3 dwg

Description

The invention relates to electronic equipment of vehicles (TS) and is intended for remote control of nodes and units of the vehicle, for example, to protect the vehicle from theft, for remote engine start, etc.

In recent years, car kits for hands-free calling (“hands free” or “free hands”) have become widespread - devices that enable the owner of the vehicle and its authorized persons (hereinafter referred to as vehicle users) to control the vehicle while talking on the mobile phone without holding it (see, for example, RU No. 2211159, 60 R 27/00, 08.27.03).

A typical car speakerphone kit includes a microphone, loudspeaker, mobile phone holder and connection cable. The use of the speakerphone kit on board the vehicle significantly reduces the likelihood of dangerous situations on the road.

The hands-free kit can also be used in conjunction with an electronic vehicle protection system against unauthorized use.

Methods and electronic protection systems are widely discussed in the patent technical literature, for example, in patents RU No. 2076815, 60 R 25/00, 10.31.1995, DE No. 19514074, 60 R 25/04 13.04.1995 and others. They allow effectively protect the vehicle from theft or theft. Protection in the general case is that for any person, except for the users, the doors of the vehicle, windows, hood and trunk are blocked, and when the locking circuits are mechanically broken to penetrate the protected vehicle, sound and / or light alarms are activated. The anti-theft function is implemented with the help of special immobilizers, bringing the engine and / or vehicle control modules to a state in which for all persons except users, the vehicle becomes impossible. Moreover, it is believed that a person who entered a guarded vehicle for the purpose of hijacking (hereinafter referred to as a hijacker) will not understand the reasons for the refusal to operate the vehicle, but simply leave it. To block the engine also use a paging communication channel (RU No. 2155683, 60 R 25/00, 09/10/2000, RU No. 2159191, 60 R 25/00, 11/20/2000, etc.).

As a prototype of this invention, an automobile remote control device was selected, which includes a speakerphone kit and an electronic protection system for vehicles against unauthorized use, according to the application GB No. 2363287, 60 R 25/10, G 08 V 25/10, N 04 M 11/04, 06/17/2000.

This device contains a central control unit associated with a unit for storing data on telephone numbers and secret codes of vehicle users, an electronic vehicle protection system, a data input unit, a timer and power supply control unit connected to an on-board power supply network and to an electronic vehicle protection system, a unit voice message memory connected to one of the outputs of the central control unit, a mobile phone, a car kit for hands-free calls, including a microphone, speaker, mobile phone holder and a connecting cable, while the outputs of the data storage unit for telephone numbers and secret codes of vehicle users and the voice message memory unit are connected to the corresponding inputs of the mobile phone holder, and the central control unit is configured

- confirmation of the operation of the vehicle electronic protection system (for example, stopping the supply of oil, etc.);

- confirmation of the opening (and / or closing) of the doors of the vehicle;

- control the connection of an incoming call and dialing a number for a mobile phone;

- determining the sequence and timing of the signal output by the voice message memory unit;

- receiving input information from the data input unit and comparing it with the secret codes of users of the vehicle;

- with other possibilities (which, however, are not essential for the present invention).

The subject of the present invention is a device for remote control of the functional organs of the vehicle, containing a sound source of sound fragments and a microphone, a microcontroller in which the output of the control unit is connected to the first input of the memory unit, an electronic protection system of the vehicle, the outputs of which are connected to the inputs of the control units of the functional organs TS, which is equipped with a noise reduction unit, and an analog-to-digital converter (ADC), an amplitude-frequency analyzer are introduced into the microcontroller the time parameters of the sound fragment, the comparison unit and the multi-criteria decision device, while the input of the noise reduction block is connected to the microphone, and the output is connected to the ADC input, the output of which is connected to the input of the amplitude-frequency and time parameters of the sound fragment and to the input of the control unit, the output of the analyzer the amplitude-frequency and time parameters of the sound fragment is connected to the first input of the comparison unit and to the second input of the memory unit, the second input of the comparison unit is connected to the first output of the unit amyati, and an output connected to a first input of the multi-criteria decision unit, the second input of which is connected to the second output of the storage unit, one of the outputs - to the input of the electronic vehicle security system, and other outputs - to the inputs of functional organs vehicle control units.

Particular features of the invention are as follows.

The noise reduction unit is made in the form of a series-connected amplifier and a selective frequency filter.

The memory unit is configured to store samples of the amplitude-frequency and time parameters of sound fragments, for example, sounds of an electronic alarm clock or ring tones of a cell phone, as well as the ability to store weighting factors for a multi-criteria solving device.

The memory block is configured to programmatically change the samples of the amplitude-frequency and time parameters of sound fragments, as well as weighting factors for a multi-criteria decision device.

The multicriteria solving device is made in the form of series-connected memory register, multiplier, adder and threshold device, the input of the memory register being the first input of the multi-criteria solving device, and the second input of the multiplier being the second input of the multi-criteria solving device.

The invention is aimed at solving the problem of expanding the functionality of remote control of the vehicle’s electronic protection system and other functional bodies of the vehicle.

The technical result of the invention is the provision of remote start of the engine of the vehicle using electronic items of personal use, allowing you to store and play various sound fragments (cell phone, electronic alarm clock, etc.) without making any changes to their electronic circuit.

The essence of the invention is illustrated in figures 1-3.

Figure 1 shows the structural diagram of the inventive device for remote control of the functional organs of the vehicle.

Figure 2 shows the structural diagram of one of the possible hardware options for the implementation of the noise reduction unit.

Figure 3 shows the structural diagram of one of the possible options for the hardware implementation of a multi-criteria solving device. The structural diagram in figure 3 represents that particular case of the implementation of a multi-criteria decision device, in which there are no shapers of control actions on the control units of the functional organs of the vehicle.

1-3, the following notation is used:

1 - source of sound fragments (melodies); 2 - microphone; 3 - block noise reduction; 4 - amplifier; 5 - selective frequency filter; 6 - ADC; 7 - analyzer of amplitude-frequency and time parameters of a sound fragment; 8 - control unit; 9 - memory block; 10 - block comparison; 11 - multi-criteria decision device; 12 - memory register; 13 - multiplier; 14 - adder; 15 - threshold device; 16 - electronic vehicle protection system; 17 - control units of the functional organs of the vehicle; 18 - microcontroller.

The considered device for remote control of the functional organs of the vehicle (Fig. 1) contains a microphone 2 connected via a noise reduction unit 3 to the ADC 6. A cell phone is shown as a source of sound fragments for specificity, although this can be any other source of stable, repetitive sound fragments (melodies), for example a pager, an electronic alarm clock, etc. In the particular case, the noise canceling unit 3 is a series connection of the amplifier 4 and the selective frequency filter 5 (figure 2).

The output of the ADC 6 is connected to the input of the analyzer 7 of the amplitude-frequency and time parameters of the sound fragment and to the input of the control unit 8, the output of which is connected to the first input of the memory unit 9. The output of the analyzer 7 of the amplitude-frequency and time parameters of the sound fragment is connected to the second input of the memory unit 9 and the first input of the comparison unit 10. The first output of the memory unit 9 is connected to the second input of the comparison unit 10. The output of the comparison unit 10 is connected to the first input of the multi-criteria decision device 11, the second input of which is connected to the second output of the memory unit 9.

In the particular case (figure 3), the multi-criteria decision device 11 can be made in the form of series-connected memory registers 12, a multiplier 13, an adder 14 and a threshold device 15, the output of which is connected to the input of the vehicle's electronic protection system 16. In this case, the second input of the multiplier 13 is connected to the second output of the memory unit 9.

In the general case (Fig. 1), the multi-criteria decision device 11 can be made with two or with a large number of outputs, designed to be connected to both the vehicle’s electronic protection system 16 and other control units 17 of the vehicle’s functional bodies.

The output of the vehicle’s electronic protection system 16 (regardless of the type of performance of the multi-criteria decision device 11) is connected to the inputs of the control units 17 of the TC functional bodies.

The frame in figure 1 is circled by a microcontroller 18, which is a single structural unit. Microphone 2 with noise canceling unit 3 is part of the REEF HE-100 car kit (hands-free), commercially available by the applicant company (certificate of conformity No. РОСС RU.ME30.B.01281).

The ADC 6, the analyzer 7 of the amplitude-frequency and time parameters of the sound fragment, the control unit 8, the memory unit 9, the comparison unit 10 and the multi-criterion solving device 11 are made on a single microcontroller board 18. In the sound fragment recognizer RZ-01, commercially available by the applicant company , the highly economical 16-bit microcontroller MSP430F149 manufactured by Texas Instruments (USA) (www.ti.com) is used.

The main scope of the RZ-01 recognizer is activation of remote engine start by telephone.

The vehicle’s electronic protection system 16 and the vehicle’s functional control units 17 are serially produced and sold by the applicant company under the trademarks BLACK BUG® and REEF® (see, for example, Technical Information on Automotive Security Systems, Altonika, 2003).

Thus, the possibility of practical implementation of the inventive device for remote control of the functional organs of the vehicle is not in doubt.

The considered device for remote control of the functional organs of the vehicle works as follows.

For remote recognition of the user of the vehicle and control of the functional organs of the vehicle, sound fragments (melodies) are used. The source of sound fragments 1 may be, for example, an electronic alarm clock or a cell phone. Its sound is converted into an electrical signal using a microphone 2. The signal from the output of the microphone 2 is passed to improve the signal-to-noise ratio through the noise canceling unit 3, which, for example, can be used in series with an amplifier 4 and a selective frequency filter 5 (see Fig. .2). This ends the analog part of the signal processing. Next, analog-to-digital conversion to ADC is carried out 6. After that, a sequence of samples of a digital code is sent to the analyzer 7 of the amplitude-frequency and time parameters of the sound fragment and to the input of the control unit 8, the output of which is connected to the first input of the memory unit 9. In the analyzer 7 of the amplitude-frequency and temporal parameters of the sound fragment, the digital code undergoes spectral conversion, for example, fast Fourier transform, threshold processing, and other operations that allow one to determine a number of stable spectral and temporal parameters, for example, spectral width, harmonic amplitude ratio, etc.

Setting (training) of the device for remote control of the functional organs of the vehicle is carried out in advance using standard sound fragments, for example, ring tones of a cell phone.

To do this, the reference sound fragment using a microphone 2 is converted into an electrical signal, its signal-to-noise ratio is improved in the noise reduction unit 3 and converted into a sequence of digital code samples using ADC 6. Next, the analyzer 7 of the amplitude-frequency and time parameters of the sound fragment selects a given a set of parameters and transmits it to the second input of the memory block 9, in which these parameters are written as reference codes of the amplitude-frequency and time parameters of the sound fragment (hereinafter, for brevity, samples).

In the process of recognizing a sound fragment, the indicated sequence of actions is repeated with the only difference that when a recognizable sound fragment appears at the input of the ADC 6, the latter generates a request that is sent through the control unit 8 to the first input of the memory unit 9, in which the samples are stored. At this request, the specified sets of samples are supplied from the memory unit 9 to the second input of the comparison unit 10, the first input of which simultaneously from the analyzer 7 of the amplitude-frequency and time parameters of the sound fragment receives the measured values of the specified amplitude-frequency and time parameters of the recognized sound fragment. Since various parameters can affect the result of the correct identification of the sound fragment in different ways, the results of comparing the amplitude-frequency and time parameters of the received sound fragment with the samples are processed in a multi-criterion solving device 11. In the particular case, the multi-criteria solving device 11 can be constructed according to the scheme shown figure 3, in the form of series-connected register 12 of the memory, the multiplier 13, the adder 14 and the threshold device 15.

In this case, the processing consists

- in sequential memorization of the comparison results (on the memory register 12);

- in multiplying the stored comparison results by weighting coefficients obtained from the memory unit 9 (on the multiplier 13);

- in the summation of the obtained multiplication results (on the adder 14);

- comparing the amount received with the value of the allowable threshold (on the threshold device 15);

- in the formation at the output of the threshold device 15 (which is the first output of the multi-criteria decision device 11) an impulse indicating recognition of a given sound fragment when the sum at the output of the adder 14 exceeds the allowable threshold;

- reset the adder 14 at the end of the time interval for recognizing the sound fragment.

In particular, the RZ-01 serial fragment recognizer created at the applicant enterprise uses a 5-second sound fragment. Samples for comparison and weights are stored in non-volatile memory block 9. Samples and weights can be changed by programming. As sound fragments, sounds with high accuracy and stability of reproduction (constant playback speed and spectral composition) are used. With the correct recognition of the given sound fragment, a negative pulse of 1 s duration appears at the output of the multicriteria solving device 11, which acts on the vehicle’s electronic protection system 16, causing the operation of certain control units of the vehicle’s functional bodies 17, for example, emergency opening of the trunk or doors of the vehicle with temporary suppression of the alarm in cases where the user's electronic keys remain inside the vehicle. At the same time, the vehicle’s electronic protection system 16 does not turn off, and the vehicle remains protected from the hijackers. The signals from the outputs of the multi-criteria decision device 11 can also act directly on the various control units 17 of the functional bodies of the vehicle, for example, to remotely start the engine.

If, at the end of the time period for recognizing the sound fragment, the signal at the output of the adder 14 is less than the allowable threshold, the threshold device 15 does not produce output signals. This means that the device has detected sound signals as hijacker signals, and the vehicle’s electronic protection system 15 will completely prevent any person from entering the vehicle.

In accordance with the foregoing, the proposed technical solution has novelty, usefulness and allows us to solve the problem - to provide the user with the ability to remotely affect the electronic protection system and the functional organs of the vehicle using various electronic personal items (cell phone, electronic alarm, etc.) without making any changes to their electronic circuit.

Claims (5)

1. A device for remote control of the functional organs of the vehicle, containing a sound source of sound fragments and a microphone, a microcontroller in which the output of the control unit is connected to the first input of the memory unit, an electronic vehicle protection system, the outputs of which are connected to the inputs of the control units of the functional organs vehicle, characterized in that it is equipped with a noise reduction unit, and an analog-to-digital converter is introduced into the microcontroller, an analyzer of the amplitude-frequency and time parameters of the sound fragment, a comparison unit and a multi-criterion solving device, wherein the input of the noise reduction block is connected to a microphone, and the output is to the input of an analog-to-digital converter, the output of which is connected to the input of the analyzer of the amplitude-frequency and time parameters of the sound fragment and with the input of the control unit, the output of the analyzer of the amplitude-frequency and time parameters of the sound fragment is connected to the first input of the comparison unit and to the second input of the memory unit hi, the second input of the comparison unit is connected to the first output of the memory unit, and the output is connected to the first input of the multicriteria solving device, the second input of which is connected to the second output of the memory unit, one of the outputs to the input of the vehicle’s electronic protection system, and the other outputs to the inputs of the control units of the functional organs of the vehicle. 2. The device according to claim 1, characterized in that the noise reduction unit is made in the form of a series-connected amplifier and a selective frequency filter. 3. The device according to claim 1, characterized in that the memory unit is configured to store samples of the amplitude-frequency and time parameters of sound fragments, for example, sounds of an electronic alarm clock or ringtones of a cell phone, as well as the ability to store weighting factors for a multi-criteria solving device . 4. The device according to claim 1 or 3, characterized in that the memory unit is configured to programmatically change the samples of the amplitude-frequency and time parameters of sound fragments, as well as weighting factors for a multi-criteria decision device. 5. The device according to any one of claims 1, 3 and 4, characterized in that the multi-criteria solving device is made in the form of series-connected memory registers, a multiplier, an adder and a threshold device, the memory register input being the first input of the multi-criteria solving device and the second input multiplier - the second input of a multi-criteria solving device.

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