KR20150080459A

KR20150080459A - Cost-Effective Warning System for Safe-Driving, the Method thereof and the Black-box therefor

Info

Publication number: KR20150080459A
Application number: KR1020150080233A
Authority: KR
Inventors: 김범용
Original assignee: 김범용
Priority date: 2015-06-06
Filing date: 2015-06-06
Publication date: 2015-07-09

Abstract

The present invention relates to a cost-effective warning system for safe driving, a method thereof, and a black box used therein. If lane departure of a car equipped with the warning system and overtaking of a rear car continue, this case is an emergency situation. Accordingly, turning-on of emergency lighting or headlights or calling 119 are performed, the most inexpensive one of available communication lines is preferentially utilized, an emergency situation which is not normal driving is effectively determined in case of an older driver as a significant effect (synergy effect) which is not present in the former individual technique, and thus it is possible to take a step so as to no longer continue the dangerous situation.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a low-cost safe driving alarm system, a method and a black box used therefor,

Safety Driving Sector

First, the lane departure monitoring function of the existing black box front and rear cameras is used as it is, and a case where the vehicle departs abnormally lane is found. Second, the motion detection function of the existing black box front and rear cameras is utilized, For example, if the rear plate is set as ROI (Region of Interest) and the ROI motion detection is above the threshold value, the function will be recognized as the next overtaking. Third, It is assumed that a situation in which a car deviates abnormally from a lane while overcoming all of the cars beyond a predetermined value is set as a crisis situation, that is, a situation in which the vehicle is treated as 'bullying' And to call 119 through utilizing existing existing CDMA cell based mobile communication network or GPS communication, To develop the system.

Patent Publication No. 10-2014-76910 Patent registration No. 10-1157052 Patent Publication No. 10-2014-69691 As described above, the vehicle / driver monitoring system is disclosed in Patent Publication No. 10-2014-76910, but its configuration is too complicated and costly. On the other hand, when the pixel change detection and detection are continuously performed for a predetermined number of times or more, the utilization technique is disclosed in Patent Registration No. 10-1157052, and the ROI (Region of Interest) feature extraction utilization is disclosed in Patent Publication No. 10-2014-69691 It is public.

Now Tucson Find Live LDWS (http://cafe.naver.com/flight2007/107392) INAVI QXD900 view, direction change / brake interlock (http://cafe.naver.com/optioncar/6692) LF Sonata LDWS device (http://cafe.naver.com/xxyxx/370507) As described above, the lane departure monitoring function has already been generalized as the LDWS (Lane Departure Warning System).

As can be seen in the outline of the existing vehicle / driver monitoring system of FIG. 2 (Patent Publication No. 10-2014-76910), the existing system is not practical in terms of complexity and cost. 2, a camera or a designated area setting and sensor such as 310, 320 and 330 in FIG. 2 (a), cameras 1, 2 and 3 in FIG. 2 (b) The same equipment has been introduced and its maintenance is too complicated and costly.

In the present invention, it is determined that an existing black box lane departure is used as it is, and a technique for detecting exceeding the overtaking threshold criterion is newly created, and a threshold value determined as an abnormal driving condition of the driver is set through experiments and reached The system aims to develop a communication link system that utilizes an external warning function or automatically emits a signal such as 119, but the system can be developed at a low cost, rather than a complicated technology, but as a better result.

If the lane departure detection and overtake permission detection of the lane departure black box of the car are judged to be abnormal, such as allowing the lane departure and the overtake of the lane departure, the lane departure light or the headlight is turned on, A low-cost safe driving alarm system that automatically notifies of an emergency, safe driving with a black box that includes method and lane departure detection and overtake detection.

It is a synergy effect not present in each of the above conventional individual technologies, effectively 'screening' an emergency situation such as 'low cost' without complicated operation, not normal driving in the case of an aged driver, You can take immediate action to prevent dangerous situations from continuing.

Figure 1. Overview of the low-priced elderly safe driving alarm system of the present invention
Figure 2. Outline of existing vehicle / driver monitoring system (Patent Publication No. 10-2014-76910)
Figure 3. An anemometer of an existing vehicle / driver monitoring system (Patent Publication No. 10-2014-76910)

The lane departure detection function is a function already included in the existing black box and is called LDWS (Lane Departure Warning System). The lane departure warning system performs the capture before using the function to inform the LDWS of the lane departure criteria. It is desirable that such a capture function is performed periodically by the LDWS itself in order to cope with a case where the cognitive function is low like an elderly person. Therefore, it is recommended that the present invention basically includes such periodic capturing. In LDWS, it is a matter of course that the car distinguishes itself by turning direction light (flashing light) on and changing the lane.

In addition to the abnormal lane departure as described above, if the front and rear cameras of the black box detect the passing of the front and rear vehicles, the vehicle leaves the lane without turning on the direction light (flashing light), and at the same time, It is a situation that overtakes, which is like a situation where people around you are straying and slowly walking. In some cases, it can be a serious situation where braking can not be carried out.

In other words, it becomes a situation where the car becomes 'bullying' and everyone is avoiding it. In this case, to inform all surrounding vehicles that the car is not operating normally, turn on the emergency lights or headlights, make a sound of clarkson, or call 119 immediately to receive emergency services and take emergency measures. In addition, safe driving of the surrounding vehicles is guaranteed.

It is low cost to utilize ROI (Region of Interest) feature extraction. It means that the front and rear vehicles change their lanes if the front and rear vehicles are moving at half or more of the width of the vehicle, for example, by checking the change of the pixels on the basis of the license plate without considering all the front and rear vehicles, If you change the lane while you are running, it will be a situation that everyone will overtake the car when you look at the car.

The situation in which the vehicle is allowed to overtake while changing the lane without turning on the turnaround light (blinking, etc.) abnormally is considered to be a situation in which the vehicle driving is not normal. Such a situation is an inevitable logical phenomenon that occurs when the driver is in an abnormal situation in which the driver can not operate normally. When this happens, the driver will be notified automatically of emergency situations such as an emergency light or headlights on, a clack sound, or an emergency such as 119.

The present invention is characterized in that the above two situations occur simultaneously in an automobile, that is, an abnormal driving, and the existing functions of the front and rear cameras of the black box are 'recycled' at a low cost while simultaneously detecting 'abnormalities' To help them get out of the crisis of the driver and to ensure safe driving for the driver as well as the driver.

The statistical test results of setting the lane departure and allowable allowances of existing black boxes and the field test results and technical standard setting according to the existing communication network link building method may be the final results of the development study carried out for the present invention. In order to further enhance the sophistication of the present invention, the above-mentioned experiment will be repeated. First, the present invention is applied to the present invention with the following setting and criteria, and the patent application of the present invention is applied.

The statistical experiment of setting the lane departure proper value of the existing black boxes uses the results already known in the non-patent literature. The statistical test of the setting of the allowable allowable passing value is regarded as overtaking if the forward and backward vehicle is moving left or right by more than half of the vehicle width, for example, if it exceeds the half of the vehicle width. In addition, the existing communication network linkage basically uses the mobile communication network such as CDMA and further uses the GPS communication network, but accepts the diversification of the communication network technology due to the technological development and establishes the emergency communication network with the minimum cost and maximum effect .

(Lane Departure Warning System), periodic automatic capture function, overtaking recognition function using existing ROI (Region of Interest) feature extracting function, and utilizing existing mobile communication network or GPS It adopts standard technology as standard technology.

Applicable to elderly drivers, but voluntary safety drivers can also be used.

Car 1, Car 1: Car
Car 2, Car 2: Other cars that pass the car back and forth
210: Black box serving as lane departure detection (LDWS)
220: Front monitoring sensor
310: camera
320: predetermined shooting area
330: Pressure / temperature sensor

Claims

A low-cost safe driving alarm system that turns on a car emergency light or headlights or makes a clarkon sound or automatically notifies a driver of a car situation when it is judged that the car driving operation is abnormal by detecting the lane departure /

The method as claimed in claim 1, wherein, when it is determined that the car driving operation is abnormal by using the lane departure detection and overtaking permission detection functions of the car black box, when the front and rear cameras of the car black box are out of the predetermined threshold A low-cost safe driving alarm system

A low-cost safe driving alarm method that turns on a car emergency light or headlights or makes a clark sound or automatically notifies a driver of a car situation when it is judged that the car driving operation is abnormal by detecting the lane departure /

4. The method of claim 3, wherein, when it is determined that the car driving operation is abnormal by using the lane departure detection and the overtaking permission detection functions of the car black box, when the front and rear cameras of the car black box are out of the predetermined threshold Low-cost safe driving alarm method

A black box including an overtaking permission detection function used in the low-cost safe operation alarm system or method of claim 1 or claim 3