RU127498U1 - ROAD ACCIDENT RECORDER - Google Patents

Abstract

1. An automobile accident recorder containing a microcomputer, an interface unit for interfacing with car sensors, an impact sensor, a unit for receiving signals from a satellite navigation system, an inertial navigation sensor unit, a power voltage generation unit with a backup power source connected to its inputs, connected to its inputs, the outputs of the microcomputer, a block of cellular transceivers and a non-volatile memory unit, characterized in that a block for receiving signals from a differential correction station with an antenna is inserted into it , an astronomical time and time synchronization unit, a video recorder with memory, a driver physiological state sensor unit, a voice amplifier unit, a standard computer interface, an auto-recorder status display indicator, Emergency Call and Additional Functions buttons, and microcomputer outputs connected to the input of the DVR with memory, the outputs of the signal receiving unit from the differential correction station and the sensor block of the physiological state of the driver are connected to the inputs of the microEV M, the input-output of the astronomical time and time synchronization unit is connected to the output-input of the microcomputer, respectively, the voice amplifier block, the indicator of the status of the DVR, the emergency call and additional functions buttons are connected to the input of the microcomputer, the standard interface is connected to the outputs of the microcomputer communication with the computer is connected to the input-output of the microcomputer. 2. The car recorder according to claim 1, characterized in that a microphone for voice communication is additionally connected to the input of the voice amplifier unit

Description

The proposed utility model relates to information measurement technology and telemetry. It is intended for collecting and recording data on vehicle movement, actions and condition of the driver, as well as for information support of the emergency response services when providing assistance to victims of a traffic accident, for monitoring and controlling vehicle movement.

A known system for collecting and analyzing data on a traffic accident (patent for invention RU No. 2222830, G07C 5/08, publ. 01/27/2004), containing a block of measuring instruments for the movement of the vehicle, which is part of the on-board measuring unit, analog a digital converter, a memory register and a solver, a navigation unit, an onboard measurement data processing unit, a control command generation unit and series-connected data format conversion unit, non-volatile memory, a data reading unit a wireless data transmission unit, a center for collecting and analyzing traffic accident information, comprising a wireless communication receiver connected in series via radio with a wireless data transmission unit mounted on board a vehicle, a primary data processing unit, a secondary data processing unit, and an acceptance support unit decisions.

The essential features common with the essential features of the claimed utility model are: a block of measuring instruments for driving a vehicle (in the inventive device, a block of sensors of an inertial navigation system), a set of measuring instruments for biometric data on the physical state of the driver and passengers (in the claimed device is a block of sensors for the physiological state of the driver ), a navigation block, a non-volatile memory block, a solving device (in the claimed utility model - a microcomputer), a wireless transmission unit on GSM standard data (in the disclosed device - block cellular transceivers).

The reasons hindering the achievement of the technical result are the impossibility of determining the causes of a traffic accident due to the low accuracy and reliability of determining the coordinates and speed of the vehicle due to the absence of: means for correcting the signals of satellite navigation systems; means of inertial navigation when satellite signals disappear; lack of video tools for fixing the external environment; lack of an autonomous backup power source; lack of hours of astronomical time; the lack of a communication interface in the system - which does not allow to quickly read information about a traffic accident.

A device for measuring and fixing the parameters of movement and condition of the vehicle, as well as fixing the environment, (patent for invention RU No. 2219584, G07C 5/08, published on December 20, 2003), comprising a light signaling state sensor, a brake state sensor systems, analog-to-digital converter, control unit, timer and memory unit, speed sensor, visual information acquisition unit, acoustic information acquisition unit, sensor signal preprocessing unit, analog signal preprocessing unit c, digital information preprocessing unit.

The essential features common with the essential features of the claimed utility model are: sensors of the state of vehicle components and systems (interface with vehicle sensors), non-volatile memory, control unit (micro computer in the inventive device).

The reasons that impede the achievement of the technical result are the impossibility of determining the causes of a traffic accident due to the lack of registration of vehicle coordinates and determining the condition of the driver. Also, the device does not have astronomical time clocks and issues of synchronizing the operation of blocks in real time are not resolved.

The closest analogue is the “Device for recording vehicle information” (RF patent No. 2298832), containing a microcomputer connected to a non-volatile data memory unit, three micromechanical angular velocity sensors with mutually orthogonal sensitivity axes, and two micromechanical accelerometers with sensitivity axes oriented respectively, in the direction of the longitudinal and transverse axes of the vehicle, and the outputs of the sensors and accelerometers are connected through an analog-to-digital unit educators to the inputs of the microcomputer, in addition to the device, a third accelerometer with a sensitivity axis oriented in the direction of the vehicle’s vertical axis, three angular acceleration sensors with mutually orthogonal sensitivity axes oriented respectively in the direction of the longitudinal, transverse and vertical axes of the vehicle, and a magnetic compass connected through analog-to-digital converters with a microcomputer, as well as a receiver of satellite navigation signals connected to a micro BM via connection unit of digital devices; the device is additionally equipped with a transceiver with an antenna connected by a two-way communication with a microcomputer, as well as an indication unit and a control panel connected by a two-way communication with a microcomputer, a backup power source connected to a power control device, an analog sensor unit connected to the microcomputer via an analog unit -digital converters, a block of digital sensors connected to a microcomputer through a block for connecting digital devices, and the block of analog sensors includes at least one date a relative gauge is a relative linear speed sensor, an instrument speed sensor, a wheel speed sensor, a steering angle sensor, an engine speed sensor, a steering wheel load sensor, a relative wheel and vehicle body position sensor, and the digital sensor unit includes at least one sensor in a row airbag deployment time sensor, airbag system status sensor, cruise control system status sensor, automatic brake system status sensor A load sensor for a passenger vehicle, a sensor for the state of the traction control system, a signal for headlights and turning on the headlights, a wiper system status sensor, a brake pedal pressure sensor, an accelerator pedal position sensor, an anti-lock braking system status sensor, and a system status sensor automatic gear shift; seat belt use sensor.

The essential features common with the essential features of the claimed utility model are: a microcomputer, a non-volatile data memory unit, three micromechanical angular velocity sensors with mutually orthogonal sensitivity axes, and three angular acceleration sensors with mutually orthogonal sensitivity axes (in the inventive device, the sensor unit of the inertial navigation system ), two micromechanical accelerometers with sensitivity axes and a third accelerometer (an impact sensor in the inventive device), a satellite receiver navigation signals (in the inventive device, a signal receiving unit of a satellite navigation system), a transceiver with an antenna (in the inventive device, a unit of cellular transceivers), a backup power source with a power management device (in the inventive device, a power voltage generating unit with a backup power source) , a block of analog sensors and a block of digital sensors (in the inventive device, a block for interfacing with car sensors).

The reasons hindering the achievement of the technical result are the impossibility of identifying the culprits and the causes of the traffic accident due to the lack of sensors and means for processing biometric data on the physiological state of the driver, the lack of a video camera or video recorder that does not allow fixing the environment before and during the road traffic incidents, as well as the lack of hours of astronomical time to synchronize the operation of all units of the system.

The objective of the utility model is to reduce the notification time of rescue services in a traffic accident by introducing a voice amplifier unit that transmits voice messages by number 112, increasing the reliability of determining the causes and culprits of a traffic accident by introducing a signal receiving unit from a differential correction station with an antenna, sensors and means for processing biometric data on the physiological state of the driver, video camera or DVR.

The technical result is achieved by the fact that the well-known car accident recorder further comprises a unit for receiving signals from a differential correction station with an antenna, an astronomical time and time synchronization unit, a video recorder with memory, a driver physiological state sensor unit, a voice amplifier unit, a standard interface for communication with a computer, indicator displaying the status of the DVR, the button "Emergency Call" and "Additional Functions", while the output a microcomputer connected to an input of the recorder with memory, outputs the signal receiving unit to the station differential correction and driver unit physiological condition sensors are connected to the inputs

a microcomputer, the input-output of the astronomical time and time synchronization unit is connected to the output-input of the microcomputer, respectively, connected to the outputs of the microcomputer, the amplifier unit for voice communication, the indicator for displaying the status of the DVR, the emergency call and additional functions buttons are connected to the input microcomputers, a standard communication interface with a computer is connected to the input-output of a microcomputer, and a microphone for voice communication of the driver and operator is additionally connected to the input of the voice amplifier block, and connected to the output n speaker for outputting the voice of the operator in the vehicle interior.

To achieve a technical result in a car accident recorder, including a microcomputer, an interface unit for connecting sensors to a car, an impact sensor, a receiver unit for signals from a satellite navigation system, an inertial navigation sensor unit, a power voltage generating unit with a backup power source, a cell transceiver unit and a non-volatile memory unit connected to the inputs and outputs of the microcomputer, a unit for receiving signals from a differential correction station has been introduced a wok with an antenna, an astronomical time and time synchronization unit, a video recorder with memory, a driver physiological state sensor unit, a voice amplifier unit, a standard interface for communicating with a computer, an indicator for displaying the status of the DVR, the emergency call and additional functions buttons, the outputs of the microcomputer are connected to the input of the DVR, with memory, the outputs of the signal receiving unit from the differential correction station and the sensor unit of the physiological state of the driver are connected to the inputs of the microcomputer, the input-output of the astronomical time and time synchronization unit is connected to the output-input of the microcomputer, respectively, the voice amplifier unit, the display indicator are connected to the outputs of the microcomputer

the status of the DVR, the “Emergency Call” and “Additional Functions” buttons are connected to the input of the computer world, the standard communication interface with the computer is connected to the input / output of the micro computer, and a microphone for voice communication of the driver and operator is additionally connected to the input of the voice amplifier unit, and a speaker is connected to the output to output the operator’s voice to the vehicle interior.

The Figure shows the inventive device, where

1 - Interface unit with vehicle sensors;

2 - shock sensor;

3 - Block receiving signals from a satellite navigation system;

4 - Sensor unit inertial navigation system;

5 - Block receiving signals from the station of differential corrections with an antenna;

6 - Sensor unit of the physiological state of the driver;

7 - Power voltage generating unit with a backup power source;

8 - Block of astronomical time and time synchronization;

9 - Micro computer;

10 - DVR with memory;

11 - Cell transceiver unit;

12 - Voice amplifier unit;

13 - Block non-volatile memory;

14 - standard interface for communication with a computer;

15 - Indicator displaying the status of the DVR;

16 - Microphone for voice communication of the driver and operator;

17 - A speaker for outputting the operator’s voice to the vehicle interior;

18 - “Emergency call” and “Additional functions” buttons.

The introduction of new blocks into the device allows you to implement the following functions:

- emergency call of rescue services in case of an accident - transfer of vehicle coordinates to a real-time transport campaign (tracker) and / or recording of a vehicle’s movement path to a long-term memory (logger);

- recording in the long-term memory data on the vehicle trajectory, actions and physiological state of the driver, as well as the external situation around the vehicle in a cyclic mode several seconds before and after a traffic accident;

- transfer of vehicle coordinates to the transport campaign in real time (tracker) and / or recording of the vehicle’s movement path to long-term memory (logger).

The considered traffic recorder works as follows. The device is installed in the vehicle cabin in such a way that the sensitivity axes of the three accelerometers of the inertial navigation system 4 sensor unit coincide with the longitudinal, transverse and vertical axes of the vehicle, respectively. Before starting operation using a computer, the vehicle VIN code, vehicle registration numbers, vehicle owner information, etc. are recorded in non-volatile memory. The DVR is turned on by supplying voltage to the power voltage generating unit with a backup power source 7. Microcomputer 9 should start the function self-diagnosis every time the ignition is turned on.

According to the launched program, the microcomputer 9 polls the car’s sensors through the interface with the sensors of the car 1, through the shock sensor 2, through the signals of the satellite navigation system received by the signal receiving unit of the satellite navigation system 3, through the inertial navigation system 4, through the signal receiving unit from differential corrections station 5, through the sensor unit of the physiological state of the driver 6. Registration of vehicle parameters is carried out continuously in the non-volatile memory unit 13 in the form nformatsionnyh personnel in accordance with the program laid down in the microcomputer 9.

The microcomputer 9 generates and issues control signals to the DVR with a memory 10, a cell transceiver unit 11, a voice amplifier unit 12, an astronomical time and time synchronization unit 8, an indicator for displaying the status of the device 15. In addition, the microcomputer 9 communicates with a unit of astronomical time and time synchronization 8, with a standard interface for communication with a computer 14, with a block of cellular transceivers 11.

The following data is recorded in the non-volatile memory unit 13:

- parameters of the driver’s behavior (applying the brake, engaging the reverse gear, activating the turn signals, steering angle, etc.);

- vehicle behavior parameters (coordinates, projections of accelerations along three orthogonal axes, projections of angular velocities along three axes, linear speed);

- biometric data on the physiological state of the driver (pulse, position of the head, eyes, etc.);

- exact astronomical time.

, где Ax, Ay, Az - ускорения по осям X, Y, Z, превысит нормированный уровень, формируется посылка пакета минимального набора данных в блок приемо-передатчиков сотовой связи 11, который передает пакет в виде SMS сообщения по номеру 112. Таким образом фиксируется факт дорожно-транспортного происшествия. Пакет минимального набора данных содержит следующие параметры: координаты транспортного средства при ударе, величину результирующего ускорения и др. Водитель может нажать на кнопку «экстренного вызова» или «дополнительные функции» 18 и послать сигнал прерывания в микро ЭВМ 9, которая включит микрофон для голосовой связи водителя и оператора 16, блок усилителя голосовой связи 12 и динамик для вывода голоса оператора в салон 17 для установления голосовой связи между оператором спасательной службы и водителем.Emergency call function in case of emergency. In the event of an emergency defined by the microcomputer program 9, i.e. when the value of the resulting acceleration of the shock sensor (three-axis accelerometer)

, where Ax, Ay, Az are the accelerations along the X, Y, Z axes, will exceed the normalized level, a packet of the minimum data set is sent to the cell transceiver unit 11, which transmits the packet as an SMS message to 112. Thus, it is fixed fact of a traffic accident. The package of the minimum data set contains the following parameters: coordinates of the vehicle upon impact, the value of the resulting acceleration, etc. The driver can press the "emergency call" or "additional functions" button 18 and send an interrupt signal to the microcomputer 9, which will include a microphone for voice communication driver and operator 16, the unit of the voice amplifier 12 and a speaker for outputting the voice of the operator to the cabin 17 to establish voice communication between the operator of the rescue service and the driver.

Function of an auto-recorder of a traffic accident. When the ignition key is turned on, the vehicle’s on-board power is supplied to the power supply generation unit with a backup power source 7. The microcomputer 9 starts the reset and date and astronomical time programs in the DVR with memory 10 from the astronomical time and time synchronization unit 8, and also turns it on in recording mode. Further, according to the microcomputer program 9, it polls the following components of the device: car sensors (turning on the brake, reverse gear, turn signals, steering angle, speed) through the interface unit with the sensors of the car 1, shock sensor 2, signal reception unit of the satellite navigation system 3 , the sensor unit of the inertial navigation system 4, the signal receiving unit from the station of differential corrections 5, the sensor unit of the physiological state of the driver 6. Then, the microcomputer 9 calculates the coordinates, the trans speed ortnogo means and generates data (parameters) package for recording in the nonvolatile memory 13. The recording side data packets in the nonvolatile memory unit 13 is performed with the frequency set by the program in a cyclic mode, when the cycle time or number of recording packets N is limited, i.e., N + 1 packet is written in memory to location 1. Thus, the last data packets will always be stored in memory. In the event of a traffic accident, when the acceleration values Ax, Ay, Az exceed the norm established by the program, i.e. the microcomputer 9 will record the fact of a traffic accident, begin to generate M data packets and write them to another area of the non-volatile memory block 13. Therefore, data on the state of the vehicle and driver will be stored in the non-volatile memory block 13 before and after the accident. If after an accident the traffic recorder is operational, then the concerned services (traffic police, insurance and transport companies) can count the data packets from the non-volatile memory unit 13 through a standard interface for connecting to a computer 14 to a personal computer. These data and video files of the DVR stored in the DVR’s own memory are necessary for reproducing an objective picture of a traffic accident.

Tracker and / or logger function. This mode is similar to the auto-recorder mode of a traffic accident, only information about the vehicle's trajectory (coordinates, speed and acceleration) and the state of the driver and vehicle will be recorded not only in the non-volatile memory block 13 (logger function), but also using the block transceivers of cellular communications 11 will be transmitted to the server of the transport company, where on the monitor of a personal computer you can track the path of the vehicle and the driver’s actions transportation of passengers or goods.

Accident mortality rates indicate that the response time to traffic accidents is long, help is late, and most people die before emergency services arrive. Therefore, the use of mobile cellular devices is required, which in the event of an accident automatically transmit the SOS signal to 112 emergency services with the exact coordinates and severity of the accident.

The use of such devices in conjunction with satellite navigation allows us to solve the problems of monitoring the movement of vehicles.

Thus, the utility model performs the following functions:

- processes signals coming from satellite systems, corrects them taking into account information received from the autonomous inertial navigation subsystem and from the network of stations of differential corrections;

- receives, processes and records signals coming from the sensors of the vehicle, as well as information from audio and video devices (video cameras);

- monitors vehicle movement parameters, records the fact of an accident and classifies its severity;

- transmits to the rescue service messages about the coordinates of the traffic accident and the severity of the accident using cellular communication;

- monitors the physiological state of the driver and, in case of biometric indicators deviation from the norm, informs the driver about this;

- transmits vehicle movement parameters (coordinates and speed) to the dispatch services of transport companies through a cellular communication system for monitoring and controlling the movement of vehicles with important or dangerous goods, i.e. implements the function of a tracker;

- transmits data at the request of the road service through a standard interface in encrypted code.

Claims (2)

1. An automobile accident recorder containing a microcomputer, an interface unit for interfacing with car sensors, an impact sensor, a unit for receiving signals from a satellite navigation system, an inertial navigation sensor unit, a power voltage generation unit with a backup power source connected to its inputs, connected to its inputs, the outputs of the microcomputer, a block of cellular transceivers and a non-volatile memory unit, characterized in that a block for receiving signals from a differential correction station with an antenna is inserted into it , an astronomical time and time synchronization unit, a video recorder with memory, a driver physiological state sensor unit, a voice amplifier unit, a standard computer interface, an auto-recorder status display indicator, Emergency Call and Additional Functions buttons, and microcomputer outputs connected to the input of the DVR with memory, the outputs of the signal receiving unit from the differential correction station and the sensor block of the physiological state of the driver are connected to the inputs of the microEV M, the input-output of the astronomical time and time synchronization unit is connected to the output-input of the microcomputer, respectively, the voice amplifier unit, the indicator of the status of the DVR, the emergency call and additional functions buttons are connected to the input of the microcomputer, the standard interface is connected to the outputs of the microcomputer communication with the computer is connected to the input-output of the microcomputer. 2. The car recorder according to claim 1, characterized in that a microphone for voice communication of the driver and the operator is additionally connected to the input of the voice amplifier unit, and a speaker is connected to the output to output the operator's voice to the vehicle interior.

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