KR20180083016A - A smart digital tachograph - Google Patents

Abstract

The present invention relates to a digital tachograph installed in a vehicle for business use and, more specifically, relates to a digital tachograph to improve convenience of a driver. According to the present invention, the digital tachograph comprises: a harmful gas sensor; a camera; and a display.

Description

{SMART DIGITAL TACHOGRAPH}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a digital running recorder installed in a commercial vehicle, and more particularly, it relates to a digital running recorder installed in a commercial vehicle, This is to prevent accident risk that may occur.

Generally, a digital running recorder is a device installed in a commercial vehicle such as a bus or a freight car (hereinafter referred to as a vehicle) to record driving information,

A clock, a speedometer, an odometer, a GPS receiver, and a storage device for storing the same, and a button and an output port for backing up data stored in the storage device to the mobile storage device are formed outside the case.

In addition, the digital driving recorder should be able to record and store the driving information for more than six months in units of one second. Based on the submitted driving information, the digital driving record analysis system of the traffic safety corporation It is built to be able to load, analyze and verify information.

This digital traffic record system has the function specified in Article 29-2, Paragraph 1 of the 「Enforcement Rule of the Traffic Safety Act」, and in particular, the cargo and transportation vehicles are obliged to record the digital driving record device Mounted,

It is possible to prevent the occurrence of a traffic accident and to protect the interests of the driver from the sales person based on the recorded driving information while improving the driving manner of the driver.

However, these digital recording devices have been left unattended on one side of the vehicle's center pace or dashboard, since they rarely specify except for once or twice the driving data every six months,

Thus, despite the apparatus for protecting the interests of the driver, not only a large number of vehicles have not yet been mounted, but also the efficiency value is low.

KR 10-1595700 B KR 10-1364439 B KR 10-1283356 B KR 10-2010-0116291 B

Accordingly, the present invention is intended to use the digital driving recorder more efficiently while cultivating the value of the digital driving recorder in accordance with the purpose of protecting the rights of the driver and improving the driving mode.

To this end, according to the present invention, a digital driving recorder for recording driving information is used as a platform, and a harmful gas measuring module, a lane departure alarm / forward collision warning module and a short distance communication module are built in the case, The present invention relates to a digital driving recorder capable of not only notifying a driver of a lane departure and a frontal collision risk based on driving information, but also analyzing a driving state during continuous driving and an air quality of the vehicle.

Accordingly, the present invention enables the digital running recorder to be used as a platform to check the danger of collision, speed risk, drowsy driving, traffic interruption information, etc.,

This improves the user's convenience, further protects the interests of the driver, improves the driving style, and prevents the risk of accidents that may occur in advance.

1 is a perspective view of a digital running recorder according to an embodiment of the present invention;
2 is a block diagram of a digital running recorder according to an embodiment of the present invention.
FIGS. 3 to 3B are explanatory diagrams showing the state of use of the digital running recorder according to the embodiment of the present invention; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a connection state of a digital running recorder according to an embodiment of the present invention, FIG. 2 shows a configuration of a digital running recorder of FIG. 1 and a configuration of a smart terminal, The present invention shows a way of guiding a lane departure, a drowsy driving, or a quality of air in a car through a digital running recorder according to an embodiment of the present invention.

As shown in the figure, the digital running recorder 1 of the present invention has a plurality of connectors formed on one side thereof, connected to the CAN bus of the vehicle through any one of the connectors 11b, The speed and acceleration of the vehicle, the engine revolution speed per minute and the brake signal, and the like,

In addition, any one of the plurality of connectors 11a is connected to the noxious gas sensor 2 so as to detect the quality of air in the passenger compartment and the concentration of carbon dioxide to check drowsiness and condition,

One of the plurality of connectors 11d is connected to the camera 3 so as to be able to check the lane change or the risk of forward collision,

A smart terminal 5 and a vibration band 6 forming a local communication channel with the digital running recorder 1 are provided to the driver on the basis of information secured through the digital running recorder 1, Or by monitoring and guiding lane changes, collision hazards or driving conditions, or air quality in the vehicle,

It is possible to protect the rights and interests of the driver according to the installation purpose of the digital running recorder 1 and to improve the driving manner.

For reference, the smart terminal 5 incorporates a local communication module to form a channel with the digital running recorder 1, and based on the information transmitted by the digital running recorder at regular intervals, the operating state of the driver, Quality, and risk. Typically, there may be a smart phone, a portable terminal, a tablet PC or a notebook computer having a built-in short-range communication module.

The vibration band 6 is mounted on the body of the driver by incorporating the vibration motor 32 and the close range communication module 33 inside the body formed in a band shape,

A channel is formed with the digital running recorder 1 or the smart terminal 5 and the vibration motor is driven according to the instructions of the digital running recorder or the smart terminal to cause the driver to sleep, It is a device that informs.

The vibration band 6 at this time includes a pulse sensor 31 installed in a state of being in direct contact with the body of the driver inside the body according to the embodiment to measure respiration and pulse rate of the driver, 5).

At this time, the pulse rate or breathing rate is determined to be a drowsy operation when the pulse rate or breathing rate is continuously decreased from the average value (normal range) to a set value or less. On the contrary, when the pulse rate or breathing rate suddenly increases from the average value, The user is warned that retaliatory driving, abrupt driving, or dangerous driving occurs due to the risk of collision occurring when the vehicle runs across the vehicle. Depending on the embodiment, .

In addition, the noxious gas sensor 2 detects the concentration of carbon dioxide in the inside of the vehicle through the concentration of the carbon dioxide discharged when the noxious gas discharged from the vehicle flows into the inside of the vehicle through the air conditioner / heater, or when the driver or the occupant breathe. To check the air quality,

The detection unit 2a and the output unit 2b are formed on the fixed substrate 2c so that the noxious gas sensor 2 is fixed to the inside of the vehicle and is adsorbed to the detection unit 2a provided on the fixed substrate 2c The output unit 2b outputs a current value or a voltage value corresponding to the stored value of the detection unit 2a to the digital running recorder 1. [

The camera 3 is fixedly installed in a chassis or a side mirror of a commercial vehicle or fixedly installed in a state in which the camera 3 is embedded inside a headlight or a mist, So as to be able to see a neighboring lane. At this time, the camera forms a lens body on one side of the case, forms an image sensor and an output unit on the inside of the lens body, converts the optical information incident on the inside of the lens body into an electric image signal, and outputs it to the digital running recorder.

The display 4 is connected to the digital running recorder 1 through an output port 16 to display an image secured through the camera 3. The image at this time is displayed on a display A lane can be displayed to confirm whether or not the lane has been changed, and the distance to the preceding vehicle can be visually confirmed.

In addition, the digital running recorder 1 is assembled so as to be attachable / detachable by providing an assembly piece on both sides of a case made of a square so that it can be mounted on a center pace in the center of a dashboard, So that the setting mode and the setting value of the digital running recorder can be confirmed. In addition, a USB port is formed on one side of the front case, and when the portable storage device is connected, the recorded driving information is backed up to the portable storage device.

A plurality of connectors 11a, 11b, 11c, and 11d are formed at the rear end of the digital running recorder 1 to connect to the CAN bus of the vehicle. The ECU 7 receives the vehicle speed and acceleration, And a break signal and the like can be received and stored. Meanwhile, the noxious gas sensor 2 is connected to one of the plurality of connectors 11a to measure the air quality of the vehicle, A camera is connected to any one of the plurality of connectors 11d to visually display a danger of a collision with a vehicle located ahead, whether the lane is changed, and the like, thereby improving the convenience of the driver.

The digital running recorder 1 also forms a basis communication channel (hereinafter, also referred to as a short-range wireless communication channel or a channel or a wireless channel) with the smart terminal 5 of the driver so that the digital running recorder 1 The acquired information is transmitted to the smart terminal 5 and the smart terminal 5 monitors the information of the digital running recorder 1 according to a designated platform to drive the vibration band 6 or output a warning sound It is designed to prevent accidents that may occur in the future.

2 is a block diagram briefly showing a configuration of a digital running recorder and a smart terminal according to an embodiment of the present invention,

The digital running recorder 1 includes an interface 11 to which a noxious gas sensor 2, an ECU 7, a GPS antenna 8 and a camera 3 are connected to the rear end of the case, The lane departure alarm / forward collision warning module 13, the DTG processing section 14 and the short distance communication module 15 are built in a modularized state, I do not.

For example, the interface 11 includes a plurality of connectors 11a, 11b, 11c, and 11d, and each of the connectors maintains different numbers and formats. A CAN bus connector 11b for connecting to a CAN bus of the vehicle, a GPS connector 11c connected to a GPS antenna, and an input connector 11d connected to the camera 3.

The noxious gas measurement module 12 changes the resistance value according to the concentration of the gas adsorbed to the detection portion 2a of the noxious gas sensor 2 and outputs the corresponding current value or voltage value by the output portion 2b The current value or the voltage value is numerically expressed and the density value corresponding to the voltage value or the current value quantified from the memory that stores the concentration value corresponding to each voltage value or current value is loaded . At this time, the loaded concentration value is applied to the DTG processing unit 14 to record the air quality of the vehicle according to the driving state, and is transmitted to the smart terminal 5 to monitor the air quality of the vehicle.

At this time, depending on the concentration of the harmful gas measured, the DTG processing unit may alarm through the display, the LED or the speaker.

For reference, the DTG processing section 14 recognizes that the concentration of the harmful gas (carbon dioxide) measured through the harmful gas measurement module 12 is normal when the concentration is 0 to 700 ppm or less, and when the concentration is 700 to 1000 ppm, It is guided by the alert of the state, and in the case of 1000 to 2000 ppm, it is recognized that there is a feeling of drowsiness or a change in the condition,

The lane departure warning / forward collision warning module 13 is an image processing board on which a GPU is installed. The lane departure warning / forward collision warning module 13 is a binary image based on the image information secured through the camera 3, Recognizes the lane pattern and the vehicle positioned ahead. At this time, the lane departure alarm / forward collision warning module 13 displays the pattern of the recognized lane and the pattern of the vehicle located in the front through a display connected to the output port in a specific color or line.

At this time, if the lane pattern to be displayed does not have a lane on the left and right sides within a certain distance of the center of the vehicle, it is determined that the lane is departed and an alarm is issued. In addition, when the vehicle is located within a certain distance from the vehicle located in front of the lane, it is recognized that there is a risk of collision and an alarm is issued. In addition, at the time of alarm, the DTG processor 14 changes the lane or transmits the fact that there is a danger of a collision and records it. At this time, the information applied to the DTG processing unit 14 is. The image information may be a thumbnail image obtained by reducing a predetermined time interval according to the compression algorithm according to the embodiment.

The DTG processing unit 14 includes a memory and a storage device such as a microcomputer, a RAM, an SDRAM, a DRAM, a ROM, an EPROM, an EEPROM, a NAND flash memory, and a HDD in a circuit board. The memory or storage device is divided into a plurality of areas, and operation data is stored in a specific area, or a plurality of memories or storage devices are arrayed to sequentially store operation data in a specific block. For reference, the information stored in the memory or the storage device includes driving information such as the moving speed and acceleration of the vehicle secured by the ECU 7 via the GPS antenna and the CAN bus, the number of engine revolutions per minute, brake signal ON / OFF, An alarm secured through the lane departure warning / forward collision warning module 13 and a concentration value secured through the noxious gas sensor 2 are stored in a database based on the driving information.

The short-range communication module 15 forms a communication channel with the smart terminal 5 and transmits the driving information secured by the digital running recorder 1, the concentration value of the noxious gas, the lane departure warning, (Wi-fi) module based on Institute of Electrical and Electronics Engineers (IEEE) 802.11b / g / n or a module for transmitting a distance warning or a collision risk warning to a smart- A WiMax module based on the IEEE 802.16e standard, or a Bluetooth module based on the IEEE 802.15.1 standard, but is not limited thereto.

The smart terminal 5 includes a local communication module and monitors a driving state of the driver, the quality of air in the vehicle, and the risk of danger based on the information transmitted from the digital driving recorder. An analysis module 21, a lane departure / crash alarm module 22, an operation state module 23, and a drowsy operation alarm module 24.

For reference, the in-vehicle air quality analysis module 21 calculates the air pollution degree of the vehicle based on the measured value of the noxious gas sensor 2 transmitted through the digital driving recorder 1, Or to check the air quality of the inside of the vehicle when the air conditioner or the heater is operated or to check the concentration of the carbon dioxide discharged when the driver or the occupant breathe the air, Or to open a window to ventilate.

In addition, the lane departure / collision warning module 22 determines whether there is a risk of collision with the preceding vehicle or a lane change based on the image, image information or warning information taken by the camera 3 transmitted through the digital running recorder 1 Outputs as voice or video.

The driving status module 23 determines whether the vehicle is continuously operated for a long period of time or longer than the set time based on the driving information of the vehicle transmitted through the digital running recorder 1, Or more and less than or less than the predetermined value, to guide the driving state of the driver.

In addition, the drowsy driving alarm module 24 recognizes that the concentration of carbon dioxide is normal when the concentration of carbon dioxide is less than 0 to 700 ppm through the in-vehicle air quality analysis module 21, recognizes that the concentration is 700 to 1000 ppm, And if it is in the range of 1000 to 2000 ppm, it is recognized that there is a sleepiness or a change in the condition and an alarm is given.

In addition, if the driver's pulse rate or respiration number transmitted through the vibration band 6 is within the normal range, and if it is gradually decreased down to 60 times or less, it is determined that the driver is in the drowsy driving mode and the voice message is outputted. On the other hand, If it suddenly rises more than 10% within the normal range, it recognizes that it is in a state of surprise or excitement, and outputs a voice message warning that it should be careful of retaliatory driving, abrupt driving or speeding driving. At this time, the drowsy driving alarm module may warn the driver not to drive if it is determined that the driver is drunk driving when the pulse rate or the breathing water is out of the normal range according to the embodiment.

Therefore, according to the present invention, it is possible to check the danger of collision, speed risk, drowsiness driving, traffic interruption information and the like by using the digital running recorder 1 as a platform, thereby increasing the value of the digital running recorder, And,

Accordingly, the convenience of the user is increased, the driver's rights and interests are further protected, and the driving style is improved, thereby preventing the accident risk that may occur in advance.

1: Digital driving recorder 2: Hazardous gas sensor
3: Camera 4: Display
5: smart terminal 6: vibration band
7: ECU 8: GPS antenna
11: Interface 11a: Connector
11b: CAN bus connector 11c: GPS antenna
11d: Input connector 12: Hazardous gas measurement module
13: lane departure alarm / forward collision alarm module 14: DTG processing section
15: Local communication module 16: Output port
21: In-car air quality analysis module 22 :: Lane departure / crash alarm module
23: Operation status module 24: Drowsy operation alarm module
31: pulse sensor 32: vibration motor
33: Local area communication module

Claims (7)

A harmful gas sensor installed inside the vehicle for measuring the quality of air and the concentration of carbon dioxide;
A camera for photographing a rear lane around a commercial vehicle and a rear view of a vehicle located in front of the vehicle;
A display on which the camera photographed image is displayed;
A plurality of connectors are formed on one side of the case, and one of the plurality of connectors is connected to the CAN bus of the vehicle to transmit driving information including the moving speed of the vehicle, the acceleration, the engine revolution per minute and the brake signal from the ECU And one of the plurality of connectors is connected to the noxious gas sensor to measure concentration of noxious gas and carbon dioxide in the vehicle so as to be able to check air quality and drowsiness operation, One of which is a digital running recorder connected to the camera and configured to check lane change or frontal collision risk;
And a smart digital driving recorder. The method according to claim 1,
And a control unit for controlling the driving of the driver by receiving the driving information recorded by the digital driving recorder, the image information photographed by the camera, and the concentration values measured through the noxious gas sensor, Further comprising a smart terminal for monitoring the state of the vehicle, the air quality in the vehicle, and the risk of danger. 3. The method of claim 2,
And forms a short distance communication channel with the digital running recorder or the smart terminal and drives the vibration motor built inside the body according to the instructions of the digital running recorder or the smart terminal to give the driver the risk of drowsiness, Further comprising a vibration band for indicating by direct vibration. The method of claim 3,
The digital running recorder includes an interface which forms a plurality of different connectors on one side of a case,
When the resistance value changes according to the concentration of the gas adsorbed to the detection unit of the noxious gas sensor and the corresponding current value or voltage value is received by the output unit, the corresponding current value or voltage value is numerically expressed, A harmful gas measurement module for loading and ensuring a concentration value corresponding to a voltage value or a current value that is numerically inverted from a memory that stores concentration values corresponding to current values,
A lane departure warning / forward collision warning module for recognizing and warning a lane change and a risk of collision with a preceding vehicle based on image information secured through a camera,
The circuit board includes a microcomputer and at least one memory or a storage device. According to the format set at the designated location, the driving information, the density value secured through the harmful gas measurement module, and the lane departure warning / A DTG processing unit for storing the secured image information and controlling the short distance communication module to instruct the smart terminal to transmit the image information stored in a predetermined period and the concentration value and the driving information,
A short distance communication module for establishing a short distance communication channel with the smart terminal according to an instruction from the DTG processing unit and transmitting the driving information secured by the digital running recorder, the concentration value of the noxious gas,
Wherein the smart digital recording device comprises: The method according to claim 1,
The detection unit is provided on a fixed substrate for fixing the inside of the vehicle. When the resistance value changes according to the concentration of the gas adsorbed on the detection unit, a corresponding current value or value And outputting the voltage value to the digital running recorder. The method according to claim 1,
The smart terminal checks whether the pollution degree in the vehicle is high as the noxious gas discharged during driving the vehicle flows into the vehicle based on the measurement value of the noxious gas sensor transmitted through the digital running recorder, To check the air quality of the inside of the vehicle, or to check the concentration of the carbon dioxide discharged when the driver or the passenger breathes, to guide the condition of the driver according to the concentration, or to open the window Vehicle air quality analysis module for outputting a guidance voice instructing to instruct the vehicle interior air quality,
A lane departure / lag warning module for outputting a voice or an image as a warning or warning about a risk of collision with a preceding vehicle or a lane change based on an image or warning information taken by a camera transmitted through a digital running recorder,
Whether the vehicle is continuously operated for a long time or longer than the set time based on the driving information of the vehicle transmitted through the digital driving recorder or whether the vehicle is overspeed at a speed higher than the designated speed, An operation state module for judging whether or not the vehicle is in dangerous driving and guiding the driving state of the driver,
When the concentration of carbon dioxide identified through the in-vehicle air quality analysis module is in the range of 1000 to 2000 ppm, it is determined that there is somnolence or a change in condition, and an alarm sound is output, or a pulse rate If the respiratory rate is within the normal range, then slowly descends, and if it falls below 60, it is judged as drowsy operation and the voice message is outputted. On the other hand, if the pulse rate or respiration rate is within the normal range, A drowsy operation alarm module for recognizing the operation as a retaliatory operation, an abrupt operation or an overspeed operation and outputting a warning voice message,
Wherein the smart digital recording device comprises: The method according to claim 1,
The vibration band includes a vibration motor installed to apply a direct vibration to the driver's body in a fixed body, a pulse sensor for measuring a pulse rate or breathing frequency of the driver, and a pulse sensor And a short range communication module for reporting the measured respiration rate or pulse rate.

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