RU49498U1 - AUDIO-VIDEO REGISTRATION AND CONTROL SYSTEM FOR VEHICLE - Google Patents

Abstract

The utility model relates to the field of monitoring and recording the motion parameters of vehicles, mainly automobiles, and is intended for automatic recording of audio reflection of sounds inside a car and video images of the situation outside the car. The system can be used if it is necessary to monitor the situation both inside and outside the vehicle in case of emergency situations, in particular illegal entry and attempted robbery. The purpose of developing an audio-video recording and control system for a vehicle was the emergence of a system that combines various tracking functions and bringing to the user information about the parameters of the situation inside and outside the vehicle, as well as the nature of the vehicle’s movement. The technical task was to develop a block diagram of the system, including the technical and software parts and consisting in organizing the relationships in the work of the claimed system. The goal is achieved, and the technical problem is solved in that the system of audio-video registration and control for a vehicle includes a module equipped with a camera, and the module equipped with a camera is a device for automatically recording audio-video onto a standard removable electronic storage medium according to the principle ring continuous recording to one or more files of the jpeg or avi type; the system additionally includes a device for tracking vehicle motion parameters, made in the form of a set of built-in sensors, while the parameters of the tracking device, reflecting the characteristics of the movement, are superimposed on a video recorded on a standard removable electronic storage medium using a digital signal mixer, while the system further comprises an interface comprising a controller and a bus controlled by a program recorded in the internal read-only memory of the controller, with Capable at the level of signals and communication protocols with the USB bus of a personal computer, moreover, the system supports watermarks that provide for recording integrity control, that is, visualization of the absence of its modification, carried out by applying a digital watermark to the image in the mixer.

Description

Vehicle audio-video registration and control system

The claimed technical solution relates to the field of control and registration of traffic parameters of vehicles, mainly automobiles. The inventive system is designed to automatically record the audio reflection of sounds inside the car and video images of the situation outside the car. The system can be used if it is necessary to monitor the situation both inside and outside the vehicle in case of emergency situations, in particular illegal entry and attempted robbery.

Known Optical observing device according to Japanese patent for invention N3420490 (PROTOTYPE) dated 03/28/97, IPC-7: B 60 R 1/00, published 07/07/2003, characterized, in particular, by the presence of modules with cameras that are located right and left in front of the car body, taking pictures of the external environment, the display that displays the removed external situation.

Common features of the prototype and the claimed technical solution are: the presence of a module with a camera that records the external environment, and a display that displays the removable external environment.

The difference from the prototype is the presence in the claimed technical solution of a device for automatically recording audio reflection of sounds inside a car, as well as a storage and storage device on a removable medium for video and audio information. Therefore, in the prototype can not be achieved the goal of reproduction and subsequent analysis of the situation, long in time.

The purpose of the development of the inventive system of audio-video recording and control for a vehicle was the emergence of a system that combines different tracking functions and bringing to the user information about the parameters of the situation inside and outside the vehicle, as well as the nature of the vehicle.

The technical task was to develop a block diagram of the system, including the technical and software parts and consisting in organizing the relationships in the work of the claimed system.

The technical result is to expand the functionality by adding new structural elements that allow you to evaluate the quality of driving, control and analysis of the operability of vehicle systems and analyze the sequence of actions performed by the driver.

The essence of the claimed technical solution lies in the fact that the system of audio-video registration and control for a vehicle includes a module equipped with a camera, and the module equipped with a camera is a device for automatically recording audio-video images onto a standard removable electronic information carrier on the basis of the ring continuous write to one or more files such as jpeg or avi; the system additionally includes a device for tracking vehicle motion parameters, made in the form of a set of built-in sensors, while the parameters of the tracking device, reflecting the characteristics of the movement, are superimposed on a video recorded on a standard removable electronic storage medium using a digital signal mixer, while the system further comprises an interface comprising a controller and a bus controlled by a program recorded in the internal read-only memory of the controller, with Capable at the level of signals and communication protocols with the USB bus of a personal computer, moreover, the system supports watermarks that provide for recording integrity control, that is, visualization of the absence of its modification, carried out by applying a digital watermark to the image in the mixer.

The system of audio-video registration and control for a vehicle is installed in the passenger compartment, in the immediate vicinity of the windshield. It is possible to place an additional camera (rear view) in other places of the car by specialists of the service center.

The system is illustrated in a diagram where:

1 - microphone;

2 - external camera (not included in the basic package);

3 - the camera is built-in;

4 - vibration sensor;

5 - ADC - audio / video signal converter;

6 - trigger / adder of video signals;

7 - LCD color display (only AVIR-2 model);

8 - inertial sensor (accelerometer);

9 - ADC sensors;

10 - non-volatile timer;

11 - LCD digital display;

12 - temperature sensor;

13 - digital signal mixer;

14 - generator "watermark";

15 - sensor controller;

1 b - controller packaging audio / video stream;

17 - controller read / write Flash-memory;

18 - thermocouple for heating the casing;

19 - Flash memory;

20 - button control controller;

21 - electrically programmable ROM;

22 - controller electrically programmable ROM;

23 - controller control LED indicators;

24 - controller for controlling laser emitters (only AVIR-1 model);

25 - signal conditioning controller "reset" - system reset;

26 - controller self-diagnosis and control;

27 - USB bus controller (standard for connecting a personal computer);

28 - external bus connector.

The system of audio-video registration and control for a vehicle consists of registration devices, including a microphone 1 connected directly to the ADC-converter of the audio / video signal 5, an integrated video camera 3 connected directly to the trigger / adder of the video signals 6, an external video camera 2, connected via an external bus connector 28 via a common bus to the trigger / adder of video signals 6, as well as from sensors:

-inertial sensor - accelerometer 8 connected directly to the controller of the sensors 15;

- vibration sensor 4 connected directly to the sensor controller 15;

- a temperature sensor 12 connected directly to the sensor controller 15 and a thermocouple for heating the casing of the recorder 18. Functional blocks of the registrar:

- the trigger / adder of video signals 6, receiving signals from the external camera 2 and the built-in camera 3, is connected directly to the LCD color display 7 in the AVIR-2 model and through the common bus in both models to the external bus connector 28, also connected to the ADC via the common bus an audio / video signal converter 5 and an electrically programmable ROM 22 controller;

- The ADC-converter audio / video signal 5, receiving analog signals directly from the microphone 1 and through a common bus from the trigger / adder 6, is connected via a shared bus to the digital signal mixer 13;

- non-volatile timer 10, controlled via a shared bus by the button controller 20, has an output via a shared bus to a digital signal mixer 13, an electrically programmable ROM controller 22 and in the AVIR-1 model to a laser emitter control controller, in addition, both models have a direct connection to the LCD digital display 11;

a “watermark” generator 14 generating a cryptographic information signal using the serial number of the recorder stored in an electrically programmable ROM 21 is connected via a common bus to the digital signal mixer 13;

the digital signal mixer 13, which receives digital signals through a common bus from the ADC-converter video / audio signal 5, non-volatile timer 10, the watermark generator 14 and directly from the ADC sensors 9, generates an audio / video information stream and directs it directly to controller packaging audio / video stream 16;

the controller packaging audio / video stream 16, receiving data directly from the mixer of the digital signal 13, is connected via a common bus to the read / write controller of the Flash memory 19;

a read / write controller of the Flash card 17, receiving data via a shared bus from the video / audio stream packing controller 16, is connected directly to the Flash memory 19;

- button control controller 20 ["set date / time" - set the date and time, "select date / time" - select the date and time setting, "laser" - turn on position lasers for the AVIR-1 model, "camera" - switch modes video output signal, “power” - turning on / off the power of the recorder, “reset” - system reset] is connected via a common bus to a non-volatile timer 10, a sensor controller 15, a controller for controlling LED indicators 23 and a controller for controlling laser emitters 24;

- LED indicator controller 23 ["err" - error, "ready" - ready, "camera" - trigger / adder operation mode, "power" - recorder power] receives signals on a common bus from trigger / adder 6, sensor controller 15 , a button control controller 20 and a laser emitter control controller 24 in the AVIR-1 model;

the sensor controller 15, which receives signals directly from the vibration sensor 4, the inertia sensor 8, the temperature sensor 12 and through a common bus from the button controller 20, is connected directly to the ADC of the sensors 9 and through the common bus to the controller for controlling the LED indicators 23;

- ADC of sensors 9, receiving data directly from the sensor controller 15, is connected to the mixer of the audio / video signal 13 and through a common bus to the controller of the electrically programmed ROM 22;

- an electrically programmable ROM controller 22, receiving data via a common bus from a trigger-adder 6, an ADC of sensors 9 and a non-volatile timer (10), is connected directly to an electrically programmable ROM 21;

-controller for controlling laser emitters 24 in the AVIR-1 model, which receives signals via a common bus from a non-volatile timer (10) and buttons control controller 20, is connected directly to laser emitters [Laser 1, Laser2];

- the USB bus controller 27 processes the received signals from the common bus from the ADC of the sensors 9, the read / write controller of the Flash memory 17, the electrically programmable ROM controller 22 and the external bus connector 28

- a controller for generating a system reset signal 25 is connected to all functional units of the recorder via a common bus;

- the controller self-diagnosis and control 26 is connected bidirectionally to all functional units of the recorder via a common bus.

Indication, positioning devices and connectors:

- LCD digital display indicating the current date and time 11 is connected directly to the non-volatile timer 10;

- LCD color display 7 in the AVIR-2 model for image output is connected directly to the trigger / adder 6;

- two laser emitters of the visible spectrum in the AVIR-1 model for camera alignment are connected directly to the controller for controlling the laser emitters 24;

- LED indicators of the operation mode are connected directly to the controller control LED indicators 23;

- a microdynamic speaker duplicating a change in the state of LEDs indicating operating modes;

- external bus connector 28 [video input signal of an additional camera, video output signal after a trigger / adder, system diagnostics, USB] is connected via a shared bus with an external camera 2, a trigger / adder of video signals 6, a self-diagnosis and control controller 26 and a USB bus controller 27;

- a socket for external power supply of the “cigarette lighter” type;

Other equipment:

-Flash-memory 19 for storing audio / video information is connected directly to the controller for reading / writing Flash-memory 17;

- thermocouple 18, located in the thermal casing, which serves to protect and heat the recorder, is connected directly to the temperature sensor 12;

- 6 infrared LEDs (for illumination in low light) -included constantly when the recorder;

- an electrically programmable ROM 21 for storing the initial settings [the last video output mode, logger errors, system settings] is connected directly to the controller of the electrically programmable ROM 22;

- a battery that provides power to the non-volatile timer.

Controllers can be integrated into a single-chip microcomputer, using a protection bit.

Installation place.

AVIR-1: Overall dimensions and weight should provide a convenient and reliable installation on the windshield (in the cabin) through the bracket on the suction cups. The bracket should have a rotary platform (on the hinge) with latches for mounting the recorder.

AVIR-2: Structurally, the registrar should be made in the form of an inside-door rear-view mirror. Place of installation - on top of the standard interior cabin rearview mirror by means of spring-loaded brackets.

The dynamic structure of the device:

Connection of supply voltage to the recorder.

When a voltage of 12 volts is connected from the vehicle’s on-board power supply via the cigarette lighter type external power connector, the recorder enters standby mode. Power is supplied to the registration devices and sensors (see section 3.2.4.), As well as to LCD digital 11 and AVIR-2 LCD color 7 displays. The button control controller 20 starts up and continuously polls the "power" button.

Turning on the registrar.

Turning on the recorder is carried out by short-term (up to 5 seconds) pressing the "power" button. The signal is transmitted to the button control controller 20, which in turn supplies power to the other recorder circuits and starts the LED control controller 23. After that, the signal is transmitted through the common bus to the control controller of the LED indicators 23, the “power” LED is turned on and the microdynamic speaker emits 2 short signal. The signals from the start of the sensor controller 15, the control controller are set on the common bus

LED indicators 23 and a trigger / adder of video signals 6, the latter being initialized by the state of outputting the video signal from the built-in camera 3. The procedure for turning on the recorder continues.

The registrar conducts an internal performance test by the self-diagnosis and control controller 26. All functional blocks of the registrar are interrogated. The button control controller 20 enters the continuous polling mode of all buttons. The procedure for turning on the recorder continues.

When diagnosing an error in polling one or more functional blocks or in the absence of a non-volatile timer battery (the battery is low), an error signal is generated on the common bus, which turns on the err LED through the LED control controller 23, and the microdynamic speaker emits a long periodically repeating signal. The procedure for turning on the registrar is terminated.

If there are no errors in polling functional blocks, the procedure for turning on the recorder continues.

The temperature sensor 12 on an analog direct-link circuit includes a thermocouple heating the casing 18, if the temperature inside the casing of the recorder is below the permissible for the circuit. In addition, the sensor controller 15, also connected directly to the temperature sensor (12), generates and sends via a common bus a signal for the LED control controller 23, which turns on the ready LED in a pulsed mode, while the microdynamic speaker emits 1 short signal with a delay of 2 seconds The procedure for turning on the registrar is terminated.

After reaching the permissible temperature, the heating of the thermocouple 18 stops, the "ready" LED goes out. The procedure for turning on the recorder resumes.

When the temperature inside the casing is higher than the permissible value, the err LED starts to pulse, the microdynamic speaker emits 1 short signal with a delay of 2 seconds. The procedure for turning on the recorder continues.

Interrogation of the presence of the Flash memory 19 through the controller for reading / writing Flash memory 17. In the absence of the Flash memory or if there is an error (the Flash card is not formatted in the PC standard), a signal is sent via the common bus for the LED control controller 23 to turn on the LED err, while the microdynamic speaker emits a long intermittent signal. The procedure for turning on the registrar is terminated.

If there is an internal test of the controller 17 of the Flash memory 19, the procedure for turning on the recorder continues.

The self-diagnosis and control controller 26 sets up the start signals of all function blocks on the common bus. The procedure for turning on the recorder continues.

Reading data on the last operation mode of the trigger / adder of the video signal b from the electrically programmable ROM 21 through its controller 22. Initialization of the trigger / adder 6 via the shared bus by the read operation mode. Setting the "camera" LED to the appropriate mode through the controller for controlling LED indicators, the data being read via a shared bus from the trigger / adder of the video signals 6. The procedure for turning on the recorder continues.

The self-diagnosis and control controller 26 sets up a start signal on the common bus for all functional units of the recorder. Moreover, if there are audio / video recording files on the Flash card 19, the read / write controller 17 opens the files in the complement mode, otherwise new files are created. The procedure for turning on the recorder continues.

Turning on the “ready” LED through the controller for controlling the LEDs 23. The procedure for turning on the recorder is completed.

After diagnosing a polling error for one or more functional blocks, a short press of the "power" button will turn off all

function blocks, turn off all LEDs and return the recorder to standby mode. A short press (up to 5 seconds) of the reset button initiates the system reset signal generation controller 25 to set the corresponding signal on the common bus, which will be visually reflected by turning off all the LEDs and returning the recorder to the beginning of the start-up procedure.

After diagnosing a flash interrogation error, a short press of the "power" button will turn off all function blocks, turn off all the LEDs, and return the recorder to standby mode. When you press the reset button and hold it (for more than 5 seconds), the Flash memory reader / writer 17 will attempt to format the Flash card 19, after which the corresponding signal will be set to the shared bus through the system reset signal generation controller 25, which will visually be reflected by turning off all the LEDs and returning the recorder to the beginning of the switching procedure.

The work of the registrar.

Regularly (1 time per second), the current date and time from the non-volatile timer 10 via a common bus are recorded in an electrically programmable ROM 21, controlled by the controller 22.

The self-diagnosis and control controller 26, connected to the common bus, constantly analyzes the ready signals of all functional blocks. When diagnosing a polling error of one or more functional blocks or depleting the charge of a non-volatile timer battery, an error signal is generated on the common bus and an error code. The error signal via the LED control controller 23 turns on the err LED and turns off the ready LED, while the microdynamic speaker emits a long periodically repeating signal. The error code is transmitted via a common bus to the controller of the electrically programmed ROM 22 and written to the electrically programmed ROM 21. Then, the self-diagnosis and control controller 26 sets a stop signal on the common bus for all functional units except non-volatile timer 10, which, in turn, initializes a digital LCD 7 error code. Moreover, the controller read / write Flash-memory 17 is trying to write the contents of the internal buffer to the Flash-card and complete the formation of files. The work of the registrar is terminated.

The interrogation of the vibration sensor 4, the accelerometer 8 and the temperature sensor 12 is carried out continuously by the sensor controller 15.

In the case of a prolonged absence (more than 15 minutes) of the signal from the vibration sensor 4, the recorder goes into "sleep mode". The self-diagnosis and control controller 26 sets a stop signal on the shared bus for the read / write controller of the Flash memory 17. Moreover, the read / write controller of the flash memory 17 writes the contents of the internal buffer to the flash card 19 and completes the file generation. The "power" LED starts to work in a pulsed mode, and the microdynamic speaker emits 1 short signal. When resuming signals from the vibration sensor 4, the self-diagnosis and control controller 26 sets up a start signal for the read / write controller of the Flash memory 17 on the shared bus. Moreover, already created files are opened in the supplement mode. The "power" LED turns on constantly, the microdynamic speaker emits 2 short beeps.

When the temperature inside the recorder case falls below the acceptable for the circuit operation, the thermocouple 18 for heating the case is turned on. When the temperature inside the casing rises above the permissible value, the err LED starts to pulse, the microdynamic speaker emits 1 short signal. In both cases, the digital temperature value after the ADC of the sensors 9 is written via the common bus to the electrically programmable ROM 21, controlled by the ROM controller 22. There are no changes in the operation of the recorder and LED indicators.

The accelerometer 8 transmits to the sensor controller 15 the current inertial component of speed. In the ADC of the sensors 9, it is converted to a digital value and the approximate current speed is calculated.

Analog video signals from an external camera 2 connected via an external bus connector 28 and the built-in camera 3 fall into the trigger / adder of video signals 6. In it, they are summed according to the quadrator principle (two images are joined) and the received video signal is sent via a common bus to the ADC -Audio / video signal converter 5. In addition, the image selected by the "kamera" button (type of the built-in camera, view of the external camera, view from two cameras) enters the LCD color display 7.

In addition to the above video signal, an analog audio signal from microphone 1 is also fed to the ADC converter 5. An audio / video stream of a digital signal is generated at the output, which, in turn, passes through a common bus to the digital signal mixer 13.

The digital signal mixer 13 superimposes on the incoming audio / video stream the symbolic value of the current time and date from the non-volatile timer 10, a symbolic representation of the current speed from the ADC of the sensors 9 and a digital signal from the “watermark” generator 14.

From the digital signal mixer 13, the integrated digital audio / video stream is sent directly to the packaging controller for the audio / video stream 16. Here, the data is compressed by standard algorithms for personal computers and the file structure of the audio / video stream is formed, after which, through a common bus, an already structured audio / video the video stream enters the reader / writer controller of the Flash card 19. Next, a recording is made to the Flash card 19 in the mode of a circular or linear buffer.

When the vibration sensor lock function is turned on, the recorder does not go into "sleep mode", while recording audio / video information on the Flash card 19 occurs in a linear mode, i.e. recording stops when the entire volume of Flash card 19 is full. Otherwise, recording is performed in the ring buffer mode, i.e. does not stop filling the entire volume - thus, Flash card 19 always contains a record of the last 3 hours (depends on the size of the installed Flash card).

Management of the registrar during work.

When the "laser" button (model AVIR-1) is pressed, two alignment lasers are switched on in pulsed mode (for orientation of the camera capture angle). The microdynamic speaker emits 1 short beep. The lasers operate for one minute, and the ready LED is off. Turning on the lasers is possible only in the absence of signals from the vibration sensor. After one minute, the lasers turn off and the "ready" LED turns on.

When the “set date / time” button is pressed, the current time and date correction mode in the non-volatile timer 10 is turned on, the “select date / time” button moves the time and date correction pointer. Entered values are displayed on the LCD digital display 11. If there are no signals from the "set date / time" or "select date / time" buttons for 10 seconds, the time and date correction mode is exited.

When the "camera" button is pressed, the output video signal (built-in camera, external camera, view from two cameras) is cycled on the external bus connector 28 and in the AVIR-2 model on the LCD color display 7. The "camera" LED changes its state when Each press sounds 1 short beep.

When the "reset" button is pressed briefly (up to 5 seconds), the Flash memory reader / writer 17 tries to write the contents of the internal buffer to the Flash card 19 and complete the file generation, after which the system reset signal generation controller 2 5 onto the shared bus the corresponding signal will be set, which will visually be reflected by turning off all the LEDs and returning the recorder to the beginning of the switching procedure.

When you press the reset button and hold it (for more than 5 seconds), the Flash memory reader / writer 17 tries to format the installed Flash card 19, after which the corresponding signal will be set on the shared bus by the system reset signal generation controller 25, which it will be visually reflected by turning off all the LEDs and returning the recorder to the beginning of the switching procedure.

When the "power" button is pressed briefly (up to 5 seconds), the Flash memory reader / writer 17 writes the contents of the internal buffer to the Flash card and completes the file generation. Then, the self-diagnosis and control controller 26 sets a stop signal on the common bus for all function blocks and turns off all LED indicators, after which the recorder switches to standby mode.

When you press the "power" button and hold it (for more than 5 seconds), the vibration sensor 4 is forced to turn off, the "ready" LED goes out and prohibits the transition to "sleep mode". The microdynamic speaker emits 1 short beep. Pressing the “power” button again and holding it (for more than 5 seconds) turns on the vibration sensor 4, the “ready” LED turns on and enables “sleep mode”. The microdynamic speaker emits 1 short beep.

A similar combination of versatility, the achievement of the possibility of various applications with the relative ease of manufacture in the prototype has not been achieved.

The ability to repeatedly play the claimed product stems from the method of its manufacture, this method is suitable for the production of a large number of identical products.

The set of essential features of the claimed technical solution is creative and unknown from the prior art.

Based on this, we can conclude that the claimed technical solution is new and industrially applicable.

Claims (1)

An audio-video registration and control system for a vehicle, including a module equipped with a camera, characterized in that the module equipped with a camera is a device for automatically recording audio-video images to a standard removable electronic storage medium on the principle of continuous ring recording in one or more files such as jpeg or avi, and the system additionally includes a device for tracking vehicle motion parameters made in the form of a set of built-in sensors, while the device parameters Tracking properties reflecting the characteristics of movement are superimposed on a video recorded on a standard removable electronic storage medium using a digital signal mixer, the system additionally containing an interface including a controller and a bus controlled by a program compatible with the level recorded in the internal memory of the controller, compatible with signals and communication protocols with the USB bus of a personal computer, moreover, the system carried out support for "watermarks", providing control of integral domain records, i.e. visualization of its lack of modifications implemented by superimposing a digital signal in the mixer at a water mark image.