KR100934942B1 - System for recoding emergency condition using avn for automobile - Google Patents

Abstract

PURPOSE: A system for recording emergency conditions using an AVN(Audio Video Navigation) system for an automobile is provided to integrate an image recording process and a display process. CONSTITUTION: A system for recording emergency condition using an AVN(Audio Video Navigation) system for an automobile comprises a camera(20), an emergency detecting module(50), a video recording module(60), an emergency level generating module(70), a recording medium(40), a memory module(80), and an AVN(10). The emergency detecting module checks if there is an emergency when pulling over or driving a vehicle. If the emergency detecting module emits an emergency signal, the video recording module briefly transmits an image from the camera to a recording disc(43) for a specific duration. The video recording module records the speed and distance of the vehicle along with the video recording image. The position numerical value generation module creates an emergency level. The recording medium serves as a black box for a vehicle. The storage module stores the video recorded image related to an impact, and extracts a specific video recorded image to store on the recording disc of the recording medium. The AVN displays the image from the camera and the storage image from the recording disc.

Description

Crisis situation recording system using vehicle AVN {SYSTEM FOR RECODING EMERGENCY CONDITION USING AVN FOR AUTOMOBILE}

The present invention relates to a crisis recording system using the vehicle AVN, and more particularly, the system automatically records various crisis situations occurring when the vehicle is stopped by using AVN, and records and stores the recorded video almost permanently. However, by automatically judging the crisis situation in a more scientific and rational manner, it creates a recorded video, and does not allow the arbitrary deletion of the recorded video to block the manipulation of the recorded video and It automatically extracts and shows it to the driver at start-up, and then deletes the image according to the driver's choice, so that the driver can manage his driving habits and secure storage space for the recorded video. It is about.

 AVN (Audio / Video / Navagation) refers to a vehicle display device that can perform audio, video, and navigation functions integrally, and AVN has been considerably intelligent due to the continuous development of technology.

For example, by sending various vehicle records to the main center associated with the vehicle, you can receive expert guidance on the status of the vehicle, or enjoy better image quality by combining Bluetooth and DMB functions, as well as peripheral devices such as mobile phones. It is also used as a means for convenient wireless communication.

Furthermore, it is a situation that even a black box, which was only mounted on an existing plane, is introduced into a vehicle, and a function of storing an accident situation of the vehicle through a separate camera is posted.

In other words, the existing black box is made of hard and durable material so that it is not easily damaged even in case of an accident, and it preserves data such as the call history and flight records of the millet when an accident occurs. The car black box, which was derived by integrating it into the vehicle, automatically records the accident situation while driving and provides a function that can be used as a serious evidence when dealing with future errors.

However, the conventional vehicle black box is made of a recording medium including an AVN and a separate camera, and a driver who already owns an AVN needs to purchase a vehicle black box separately or the number of cameras is limited. Not only did it fail to record properly, but the additional installation of the camera was not allowed.

In addition, a number of prior arts on existing driving record recording systems have been published. Looking at this, it follows a method of performing video recording by parameters such as collision, distance, and speed change during driving / stopping. Parameters such as change act as individual judgment factors, failing to properly grasp the crisis situation of correlations, and even increase the capacity of the recording medium by recording even if the crisis situation cannot be saved or has nothing to do with the crisis situation. The problem was followed.

Also, due to the limitation of the storage capacity of the recording medium, the recorded video must be deleted at any moment. If the capacity of the recording medium is full, the storage space is secured by erasing the previously stored video on a time-based basis. The image is deleted by randomness based on the time sequence without considering the importance of the recorded image at all, and the black box falls to the state of recording only the latest image, thus failing to preserve the driver's driving habits or important important images. There is a concern that it has no value.

For example, Korean Patent No. 531524, "How to extract an accident image from a vehicle image storage system," reads an accident-related image by analyzing the recorded image on its own, and in the case of an accident-related image, it is posted that it cannot be deleted. In this case, since the accident is read based on the brightness / color difference, there is a problem that it is difficult to read whether the accident is the same color when an accident occurs at night or when the vehicle is in contact with the vehicle. If it cannot be deleted, there is a disadvantage that there is no specific method on how to handle the storage capacity when there is a limit in the case of two or more accidents.

Korean Patent Application No. 10-2004-0105990 also cannot delete recorded images, but when accident analysis and recorded images are scaled, there is no mention of data processing method, which is also insufficient to solve existing problems.

In addition, Korean Patent No. 581744 'Vehicle Image Storage Device and Storage Method' includes various parameters displayed in an accident situation, namely whether emergency light is on, RPM value, light / horn is on, and brake light is on. It is posted that it records the accident video from the accident video point of view through the shock sensor.In this case, it has the advantage of recording the detailed surroundings together in the video to identify the accident. Since it is determined by a single parameter called detection, there is a possibility that the situation before the collision may be missed, and the captured image may not be used as recording data of the driver's driving habits other than the accident situation.

Therefore, the accident situation can be predicted in more detail, and the process can be taken in detail before and after the accident, and at the same time, the image is blocked by the driver's operation in order to understand the exact accident record and the driver's usual driving habits. As the situation is recorded, there is a need for a new and advanced vehicle crisis situation image recording and processing device capable of more effectively deleting images in a situation where a large number of stored images are recorded.

The present invention has been made to overcome the problems of the above technology, in order to grasp the crisis situation during vehicle driving / stopping, the three parameters such as speed, distance, and impact are organically related to grasp the degree of crisis situation to the recording medium. The main purpose is to provide a system that can ensure the fidelity of the recorded image by storing, and selectively prevents the occurrence of excessive situation in the storage space by selectively storing and processing through the comparative analysis of the degree of crisis between the recorded images. do.

Another object of the present invention is to prevent the user from deleting the recorded image arbitrarily, but when the storage capacity is limited and the deletion is to be determined, the first priority is selected by automatically determining the image having a lower priority for the crisis situation. By this, the second object is to provide a system that can automatically delete processing.

Another object of the present invention is to divide the storage / retention criteria of the image into two stages and to present different criteria at each stage to semi-permanently store and process more rational and scientific crisis situation images.

A further object of the present invention is to facilitate the operation of the device by integrating the video recording and display process using AVN.

It is a further object of the present invention to keep the recording medium in a more robust housing and to add various functions to the AVN in order to ensure the safety of the recording medium to increase user convenience.

In order to achieve the above object, the emergency situation recording system using the vehicle AVN according to the present invention, the camera is installed in a plurality of suitable positions in the front, rear, side of the vehicle can take a picture of the vehicle stop or driving situation; The speed change detection unit detects an increase or decrease of the vehicle speed in connection with a speedometer, and generates a speed increase and decrease signal and a speed value at a constant speed increase and decrease in connection with a speedometer. The distance change sensor is provided with a distance detection sensor, and the distance of the distance detection signal and the distance value are generated when the distance of the distance detection sensor closest to the external object is closer than the predetermined distance set based on the speed measured by the speed change detection unit. Crisis situation detection module consisting of a detection unit, a shock detection unit for generating a shock detection signal from each of the shock sensor installed around the camera; When a signal is generated from the crisis detection module, the video transmitted from the camera is recorded on a temporary recording disk for a predetermined time, and the speed value and distance value transmitted from the speed change detector and the shock detector are recorded on the recorded video. A recording module for recording together; A crisis value generation module for generating a crisis value expressed by a numerical value by determining whether the speed and distance determined at the end of the recorded video affect the seriousness of the crisis situation; A recording medium mounted at a predetermined position of the vehicle and having a recording disc embedded in the housing to serve as a vehicle black box; a storage module for comparing and processing the weights of the crisis situations of the n recorded images, first processing the recorded video related to the impact, and then storing and processing the recorded video having the highest crisis value on the recording disk of the recording medium; And displaying an image of the camera and a stored image of the recording disc, and deleting and modifying the stored image, wherein the AVN is blocked.

In addition, the system according to the present invention, the storage capacity determining module for determining whether the storage image stored in the recording disk of the recording medium occupies a specific limit capacity in the total storage capacity; When a limit capacity signal is generated in the storage capacity detecting module, a look-up table is set as a numerical value to determine whether the distance value and the speed value detected on the basis of the starting time point of the storage image are in the light of a crisis situation. A crisis generation value generation module for calculating a crisis occurrence value by substituting the distance value and the speed value into the lookup table; And an automatic deletion processing module for extracting a plurality of stored images having a low crisis occurrence value of the crisis generation value generation module and automatically deleting the plurality of stored images from the recording disc.

In addition, the system according to the present invention extracts a plurality of stored images having a low crisis occurrence value of the crisis generation value generation module and sequentially displays through the AVN at the moment when the driver starts to give the driver the right to delete. The automatic display module may be configured to automatically delete the display image when the driver does not delete the displayed image.

According to the crisis recording system using the vehicle AVN according to the present invention,

1) It is possible to integrate the video recording and display process by using / improving the AVN provided in the vehicle, thus providing the advantage of not having to purchase a separate video recording device.

2) It is possible to install the camera additionally, which can increase the compatibility of the device,

3) By organically linking the three parameters of speed, distance, and impact, it is possible to analyze the degree of crisis more scientifically and reasonably, thereby ensuring a faithful record of the situation before and after the accident and at the same time, understanding the driver's usual driving habits. Not only can you use video,

4) If the recorded video cannot be deleted at user's discretion, the value of the recorded video is increased. If the recorded video is inevitably deleted, the video which has a lower priority for the crisis situation is automatically judged and the crisis of the recorded video is relatively At the same time, you can delete images that are not relevant to the situation,

5) It has the effect of giving the driver of the image which has a low crisis situation among the recorded images, the mandatory display and deletion, so that it can be utilized as a personal history of the recorded image.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and like reference numerals in each of the drawings refer to like elements.

1 is a block diagram showing a schematic configuration of a crisis recording system using the vehicle AVN according to the present invention.

The system according to the present invention automatically records the various emergency situations occurring during the parking of the vehicle to record and preserve almost permanently, and immediately records images recorded using the existing AVN without the help of an additional playback device. Blocks the possibility of manipulating recorded video by enabling playback and primarily does not allow random deletion of recorded video, but it is relatively secondary because it is technically impossible to record indefinitely due to the capacity limitation of the recording medium. It has a main function of automatically extracting and deleting images not recognized as a crisis situation or showing them to the driver when the vehicle is started and then deleting images at the driver's choice.

In order to describe these functions in detail, the functions of the respective components shown in FIG. 1 will be described as follows.

AVN 10 according to the present invention is a device that performs audio / video / navigation at the same time as the existing AVN, is installed in a suitable position (for example, around the dashboard or steering wheel) in the vehicle, but the existing AVN What is different from that is that the recorded video or the real-time video input from the camera for the crisis situation can be played directly without the help of a separate playback device. That is, the terminal is connected to the camera 20 to the recording module 60, the recording medium (aka black box) 40, which will be described later, and outputs the image input through the camera 20 in real time or selects the recorded image. It has a function that can be played according to the user's convenience.

To this end, the camera 20 / recording medium 40 / recording module 60 and the like are provided with a plurality of input and output terminals for receiving the input and output, the control to selectively output the image input through the input terminal It has a built-in function. (Because the image storage to the recording medium can be made by a separate configuration, an input terminal will be mainly provided.)

In addition, images according to the plurality of cameras 20 may be output as a multi-split screen on one screen, such as 4 divisions / 9 divisions.

As such, since the image stored in the recording medium 40 through the AVN 10 according to the present invention can be immediately checked in the vehicle without the help of a separate device, the user's convenience can be enhanced. to provide.

In particular, when outputting an image stored in the recording medium 40 (primarily a recording disc), playback related functions such as pause, repeat, slow playback, and copying to an external recording medium can be combined, but a user such as a driver The deletion / modification function is blocked so that the random image cannot be deleted / modified arbitrarily.

This is to guarantee the importance of the recorded image storing the crisis by arbitrarily blocking the user from arbitrarily manipulating or otherwise inadvertently deleting the image containing the crisis, except that the recording disc of the recording medium 40 The automatic deletion determination function, which will be described later, is followed only when a situation in which the recording video is inevitably deleted due to the capacity limit of 42 occurs.

2 is a conceptual diagram illustrating an installation position of a camera according to the present invention by way of example.

The camera 20 which concerns on this invention can be provided as multiple pieces in the appropriate position inside and outside of a vehicle.

That is, as shown in FIG. 2, the camera 20 can be installed in plural in front, rear, or side of the vehicle, and can be installed in the vehicle as necessary. Alternatively, the camera 20 according to the present invention may be a front / rear camera that is pre-mounted in the vehicle, and may be built in a small size or may be mounted in the vehicle body or detachably mounted on the vehicle.

This camera is in charge of a known camera function which allows the system to input various situations occurring inside and outside the vehicle as an image format.

3 is a conceptual diagram illustrating a connection relationship between a camera control box and a camera, an AVN, and a recording medium in the system according to the present invention.

When the camera control box 30 according to the present invention is directly connected to the recording module 60 to the AVN 10, the camera control box 30 according to the present invention has an AVN 10 for the trouble of electric / electronic camera control to secure input / output terminals. This is because the configuration is prepared because it may cause inconvenience in manufacturing and installation. That is, the camera control box 30 is provided between the camera 10 and the recording module 60 to the AVN 10 to connect both of them, but has sufficient input / output terminals for additional installation of the camera 20. In addition, camera-related controls (e.g., camera power distribution, camera testing, camera zoom control or sensitivity control, etc.) are used to ensure that they are ready to accept additional camera images and to converge multiple camera images. Camera operation control, etc.). The control of the individual cameras 20 connected to the camera control box 30 can be achieved in the AVN 10. In addition, the AVN 10 recognizes the additional camera 20 as signal processing or automatic processing of the camera control box 30 when the camera 20 is additionally installed in the camera control box 30.

4 is a perspective view exemplarily showing a schematic configuration of a recording medium according to the present invention.

The recording medium 40 according to the present invention acts as a black box for a vehicle, and is a safe place such as a predetermined position of the vehicle (for example, a lower body space below the dashboard surface / floor bottom of the vehicle space, a trunk interior sidewall, etc.). ) Is attached.

As can be seen from Fig. 4, the recording medium 40 according to the present invention has a recording disc 42 in a housing 41 made of an alloy or other special material having durability / fire resistance that is not easily broken even when the vehicle is damaged or impacted. Or a recording disk 42 / temporary recording disk 43 is embedded therein, and an input / output terminal 44 for input / output of an image and a power supply terminal 45 for power supply are formed at one side of the housing 41. .

The recording medium 40 serves as a black box for a vehicle, and almost semi-permanently stores an image of a crisis situation of a vehicle, so that the recording medium 40 can be used as an important evidence for negligence in an accident. It can be used for the purpose of being able to grasp driving habits.

In particular, as mentioned above, the recording (recording) image recorded on the recording disc 42 of the recording medium 40 cannot be deleted by the user arbitrarily and can be deleted only by the specific method provided by the present invention. .

Crisis situation detection module 50 according to the present invention detects the situation or the time / end point of the crisis by detecting a sudden change in speed, the proximity of the distance to the opponent vehicle, the impact of the opponent vehicle and the like when driving the vehicle In this case, the crisis situation detection module 50 automatically determines whether to record the video related to the crisis situation.

Of course, in addition to the automatic recording decision by the crisis detection module 50, it is also possible to manually record the specific situation by the user's decision.

The crisis situation detection module 50 utilizes three parameters, such as speed change, distance, and impact, to correlate the situation.

In other words, when the speed increases or decreases rapidly or when the distance to the opponent is close, the actual shock is recognized as a crisis situation so that the crisis situation in the vehicle can be identified in detail.

Specifically, the crisis situation detection module 50 according to the present invention is composed of a speed change detection unit 51, a distance change detection unit 52, and an impact detection unit 53.

The speed change detection unit 51 is connected to a speedometer that is provided by itself or a speedometer that is basically provided in a vehicle, and thus the speed changes rapidly (increased or decreased) based on a specific time (about 2-5 seconds). For example, when the increase / decrease state of 20 km / h or more) is detected as a crisis point of time, speed data (speed value) and a speed crisis situation occurrence signal are generated. At this time, the velocity data is recorded in the image in association with the recording module 60.

Here, the speed data refers to a speed record (speed value) that is included in the video and recorded in the unit of 1 second, for example, when the video is recorded after the time point at which the crisis situation is identified.

The distance change detection unit 52 includes a distance detection sensor 52a near each camera 20 in a state in which the distance change detection unit 52 is connected to the speedometer, and is located closest to a specific object among the plurality of distance detection sensors 52a. A specific distance to the object at a certain speed with respect to the distance sensor 52a in the vehicle (e.g., driving more than 40 km / h-front / rear with the vehicle in the range of 10 to 30 m; Identify the approaching situation within the range of 1 to 10m from the rear, within 50cm when stopping, and within a certain distance range of the object located to the side at other specific speed, etc. When the vehicle leaves the street, it identifies the end point of the crisis and generates the start / end signal for each situation detection.

In addition, the distance data changes according to the driving of the vehicle is generated as distance data and recorded together with the recorded video, and the distance at the start of recording to a specific part (for example, the file head) of the recorded video file. And data relating to distance recording at the end of recording. In addition, the distance change detection unit 52 is also associated with the recording module 60 to record the distance data in the recorded video.

In other words, the distance value and the speed value are stored in a separate record in the head portion of the recorded image file in order to ensure the ease of comparison determination between the recorded images as well as the recorded image.

The shock sensor 53 includes a shock sensor 53a to detect a state in which a collision of the actual vehicle has occurred, generate a shock detection signal, and record the signal as shock recording data in the recorded video.

According to this crisis module 50, the pre-crisis situation before the collision, as well as the precondition (i.e., the distance or the speed change occurs before the collision occurs, of course, before (or after) the collision). It is possible to detect the crisis situation in more detail by a time series combination between the three parameters.

The recording module 60 recalls an external situation input from the camera 20 for a specific time (for example, 30 to 1 minute and 30 seconds) after the crisis situation is detected by the crisis situation detection module 50. Performs a function of recording along with the distance value, speed value, and impact received from the crisis detection module 50.

At this time, the recording time can be freely changed depending on the system setting between the specific time and the end of the crisis situation (for example, the end of the crisis detection signal transmitted from the distance detector when the distance is farther away). In order to secure the length of the image, it should be continued for a certain time.

In the present invention, there is an advantage that the detection of the crisis situation can be detected in more detail by using a combination of three parameters. However, in this case, in order to overcome the problem of limiting the storage capacity of the recording medium due to the recording even though it is not the actual crisis situation, Introducing a method that allows the situation to be judged more reasonably through video recording (recording on speed, distance, impact or not), and selects the recorded video in two stages to determine whether to have a continuous storage state.

First of all, as a configuration for selecting a real crisis situation among recorded video as a first step, the recording module 60 stores the video on a temporary recording disk 43 provided separately from the recording disk 42.

The recorded video recorded primarily on the temporary recording disk 43 is not immediately stored on the recording disk 42 of the recording medium 40, but selectively through the determination process by the crisis value generation module 70. The storage module 80 finally stores the recording disk 42 on the recording medium 40.

Crisis value generation module 70 according to the present invention is not excluded from the recording video recording is not stored by the impact detection unit 53 (that is, it is obvious that the situation that the actual shock was the most dangerous situation is not excluded), The distance data recorded by the distance change detector 52 on the head of the image file, that is, the 'distance value' and the speed data at that time, that is, the speed value, respectively, are specified by the distance change detection unit 52 based on the end point of the recorded image. Whether a correlation between speed and distance has been related to a crisis situation The independent variables such as speed and distance at the end of the recorded video are at risk based on the statistical reference table (aka 'look up table'). Quantify this effect to calculate the generate (higher than the crisis was to be determined), that is, risk value and the storage (at this time, is stored here is a video file head to a separate storage space) serves to.

Of course, the crisis value generation module may determine the crisis situation by generating the corresponding crisis value based on the closest distance value among the distance change values in which the image is recorded. However, if it is determined that the closest distance is recorded rather than the end of the recording, it is not a crisis but only the proximity with the adjacent object at the time of parking stops, so it is difficult to read the crisis. During the time when the video starts and ends (because it is about 30 minutes to 1 minute and 30 seconds), it is assumed that the crisis situation can be judged based on the end point except for the situation such as parking stop, not the crisis situation. The speed value and distance value were acquired based on the end point.

The lookup table refers to data in which a crisis value at the end of recording is recorded. The lookup table refers to a data chart in which a crisis value expressed by various distances according to a specific speed is calculated based on the correlation of the speed / distance.

In other words, the lookup table is a data that summarizes the crisis situation for the distance change by a specific speed by analyzing the relative crisis situation for the distance and the velocity according to experiments and studies. Provide standard data for judging crisis. Apart from this, a look-up table, which will be described later as a numerical value of the crisis situation at the start of recording, is separately provided by the crisis generation value generation module 100.

For example, in the recorded image without recording of the impact sensor 53, when the speed was 30km / h at the time of recording 'end', and the distance to the object was displayed as 5m, the first 'speed = 30' , Extracting a temporary value of '3005' which means compression of distance = 5 '. This temporary value is substituted into the look-up table, which analyzes the effects of the speed and distance factors on the crisis situation in advance, and the degree of crisis when the speed = 30 and the distance = 5, that is, the crisis It is derived as a number.

The crisis value calculated / generated through the lookup table is stored in a separate storage space (which can be a temporary recording disk) along with the head of the recorded video (file type) or the title of the recorded video (which can be automatically generated). It is possible to be stored.

The crisis value generation module 70 sets a criterion that was determined to be the most dangerous situation when a collision does not occur (a collision situation is determined with the highest priority) as a correlation between the distance recorded and the speed at the end of the recording image. As a result, as the crisis value is high and low, a criterion for selecting an image stored in the recording disk 42 of the recording medium 40 is provided.

In the storage module 80 according to the present invention, the number of recorded images accumulated in one cycle is first assumed that the recorded images of n times (for example, 2 to 4 times) are accumulated on the temporary recording disk 43 as one cycle. This function compares the crisis values of the two, and stores the recorded video having the high crisis value on the recording disk 42 of the recording medium 40. At this time, the recorded video having a low crisis value is automatically deleted immediately or after a predetermined time from the temporary recording disk 43.

In this way, after the storage module 80 unconditionally stores the recorded image on the recording disk 42, the first judgment is made in advance without deleting the image determined not in a crisis situation when the storage capacity of the recording disk 42 reaches a limit value. The reason for selectively storing the data is to increase the data storage value of the recording medium (black box) by raising the quality of the first recorded video to the crisis judgment data. As all the recorded images are stored on the recording disk of the medium 40 and then deleted due to the storage capacity problem, it is difficult or complicated to judge the value of the crisis judgment data due to the intervention of the subjective factor (the judge's subjective factor). This can be done to prevent such a problem.

As mentioned above, the temporary recording disk 43 may be included in the housing 41 of the recording medium 40 in addition to the recording disk 42, thereby ensuring the safety of the temporary recording disk 43 itself. It is possible to.

In this way, the recorded video stored on the recording disk 42 is stored not only in a crash situation, but also in a situation close to a crisis situation as well as a function of evidence to determine whether there is a mistake in a crash, as well as an ordinary driver. It can be utilized as a history (history) to grasp the driving habits of.

The recorded image stored in the recording disk 42 can be read and displayed through the AVN 10, and can be displayed therethrough, but the recording stored in the recording medium by blocking the modification and deletion function by the user's arbitrary selection. Maximize the preservation of the image.

However, even if the capacity of the recording disk 42 of the recording medium 40 is large, the storage space reaches a limit as the storage capacity increases, which necessitates the need to delete the present invention. In order to provide a storage capacity grasping module 90, crisis generation value generation module 100, automatic deletion processing module 110, automatic display module 120 is provided.

The storage capacity determining module 90 according to the present invention generates a limit signal when the recording image is stored in the recording disk 42 by a predetermined capacity (for example, determining when 80% of the storage capacity is stored). Play a role.

In addition, the crisis generation value generation determination module 100 has a function of calculating a 'crisis occurrence value', which is a separate value that is different from the crisis value, and is stored in the recording disk 42 when the limit signal is received. It is responsible for the function of extracting a plurality of images having high deletion priority by setting an image which is determined to have a relatively low crisis occurrence value among the recorded videos as a deletion priority object.

In this case, it is most convenient to extract a plurality of images having a high priority of deletion (i.e., a video that is close to a non-crisis situation) based on the low-crisis video described above. Similar to the first extraction process (storage screening process in the storage module), the significance of the second extraction process itself decreases, so that a specific method (ie, calculation of crisis occurrence value) is introduced to supplement the first extraction process. To extract the images prior to the crisis.

In other words, when a crisis is encountered, a situation occurs in which the driver approaches the vehicle (primary crisis situation) in a state where the speed is not reduced and the vehicle is approached (primary crisis situation) without braking. It is a general aspect to escape the crisis by stepping down the speed of the vehicle and securing distance from the opponent. However, since the crisis value is related to the distance to the other object (relative driving vehicle, stationary object, person, etc.) at the time of 'end' of the recorded video and the speed at that time, the end of the recorded video which is the time after the crisis occurred At this point, the distance from the opponent is increased based on the situation where the speed is reduced. Therefore, it is insufficient to determine the degree of crisis at the 'starting point' when the actual crisis occurs.

Therefore, the crisis generation value generation module 100 determines whether the relationship between the distance and the speed at this time is related to the crisis situation based on the recording 'start time' among the speed and distance values recorded in the recorded video. Has the function of calculating the number of crisis occurrences analyzed.

That is, the crisis occurrence value is the distance change detector 52 based on the 'start' time point of the recorded image among the recorded images in which the record by the impact detector is not stored as in the crisis value generation module 70. The distance value recorded in the head of the image file and the speed value in the velocity data at that time are each set as independent variables, and then the weighted coefficients are set for each of them. The regression model was selected by analyzing the relationship between the relationship with the two factors and the result was determined according to the actual distance and speed. Table-the higher the value is closer to the crisis), and the corresponding value in this lookup table is the crisis occurrence value. Play a role.

In other words, the crisis value generation module 70 calculates a specific value (result of the distance and speed) of the lookup table at the end of the recording as the crisis value, while the crisis generation value generation module 100 Is a function of calculating a specific value of the lookup table at the start of recording as a crisis occurrence value.

These crisis and crisis occurrences often have mutual independence (that is, high numbers at the beginning of recording do not necessarily mean that they are high at the end of recording). Since there is a disadvantage in that the characteristics are canceled, both values are used independently, but complementary, and the storage module 80 is often more urgent and important than the recording end point. The criteria to carefully decide whether or not to delete the last recorded stone stored in the video is set as the 'start' time of recording.

The crisis generation value generation module 100 selects a low crisis occurrence value among the plurality of stored images as a high deletion priority, and selects a plurality of recorded images having a high deletion priority in order of numerical value. .

The automatic deletion processing module 110 according to the present invention performs a function of automatically deleting the plurality of deletion priority objects from the recording disk 42 automatically under the control of the system.

In other words, by extracting an image that can be deleted based on the above-described basis, it is automatically deleted to provide a characteristic that can reasonably secure the storage capacity of the recording disk 42.

In the present invention, when deleting based on the automatic deletion processing module 110, when the driver's judgment is not involved at all, when trying to record the driver's driving habits by themselves to prevent the problem that the driver's own subjectivity is not involved at all. For this reason, it is possible to additionally grant the driver the right to select deletion.

That is, the automatic display module 120 according to the present invention is connected to the vehicle's starting system, and asks the driver to display the moment the driver starts the vehicle, and then when the driver accepts it, the deletion order of the recorded images is increased. Display via AVN 100 in high order.

In other words, it gives the driver the opportunity to organize the video that is not identified as a crisis situation at the start-up time when the driver has not yet traveled. You are authorized to do so. In other words, when the automatic display of individual recorded video ends, the message 'Do you want to delete?' Is displayed. If the driver says 'Yes' (if you click the yes button), the video is deleted and 'No' is deleted. If you click (no button), the process of automatically displaying the next recorded video is repeated.

In this way, giving the driver the right to display the image and then deleting it may be subjective because the driver is the owner of the vehicle, but it is possible to retain the necessary image as it is so that his / her history of driving habits can be maintained. To give you the opportunity to manage. In this case, the driver may be asked for a password to enter a password, thereby preventing the driver other than the vehicle owner from randomly deleting the recorded video.

If the driver shows all the extracted images and the driver does not delete any of the displayed images or refuses to be displayed during the display process at startup, the deletion process is automatically performed in the highest order. To provide an opportunity to finally secure the storage space of the recording disc 42.

As a result, it is possible to provide a characteristic that the storage space of the recording medium can be secured by primarily arranging the unnecessary recorded video automatically by the driver's right of choice, secondly automatically.

The system according to the present invention may not only perform the above-described crisis-related recording role, but also provide various functions using the AVN 10.

Specifically, the AVN 10 may further include a vehicle location transmission module 130, a driving environment providing module 140, and a secretary function providing module 150.

The vehicle location transmission module 130 is connected to the GPS and performs a function of transmitting an SOS message to a vehicle management center that is linked to the vehicle in advance when a crisis situation (petrol shortage, internal hazard environment, etc.) occurs. .

The driving environment providing module 140 identifies a drowsy driving situation when the lane is frequently changed within a certain time by an arbitrary selection by the driver (provided as an AVN interface such as a drowsiness preventing button) or an image input from the front camera. For example, it is responsible for automatically turning on the air conditioner or outputting music such as pre-stored cheerful marches.

In addition, the secretary function providing module 150 manages the driver's schedule, and at the moment when the driver starts up by directly receiving or directly inputting schedule data prepared from the outside through a USB connector that can be separately provided in the AVN 10. Provides the function to display the schedule of the date.

Such schedule data may be transmitted to the outside by a communication module provided in the AVN 10 or may receive transmission schedule data.

In addition, the system according to the present invention automatically detects the crisis situation in the vehicle through the camera provided in the automatic fingerprint recognition module to start the fingerprint recognition instead of the ignition key, the SOS message to a separate center connected to the vehicle automatically Convenient functions such as emergency rescue module to send out, replacement cycle notification module to inform the replacement cycle of vehicle parts, alarm module to generate an alarm when there is no departure after a certain time even if there is a departure of the vehicle in front of the vehicle It can be additionally combined.

As described so far, the configuration and operation of the crisis recording system using the vehicle AVN according to the present invention have been described in the above description and the drawings, but these are merely described as examples, and the spirit of the present invention is limited to the above description and the drawings. Of course, various changes and modifications are possible without departing from the technical spirit of the present invention.

1 is a block diagram showing a schematic configuration of a crisis recording system using the vehicle AVN according to the present invention.

2 is a conceptual diagram illustrating an installation position of a camera according to the present invention by way of example.

3 is a conceptual diagram illustrating a connection relationship between a camera control box and a camera, an AVN, and a recording medium in the system according to the present invention.

4 is a perspective view exemplarily showing a recording medium according to the present invention;

<Explanation of symbols for the main parts of the drawings>

10: AVN 60: recording module

20: camera 70: crisis value generation module

30: camera control box 80: storage module

40: recording medium 90: storage capacity identification module

42: recording disk 100: crisis occurrence value generation module

43: temporary recording disk 110: automatic deletion processing module

50: crisis detection module 120: automatic display module

51: speed change detection unit 130: vehicle position sending module

52: distance change detection unit 140: operation environment providing module

53: shock detection unit 150: secretary function providing module

Claims (6)

As a crisis recording system using vehicle AVN, A camera 20 installed in a plurality of suitable positions at the front, the rear, and the side of the vehicle to photograph the vehicle stopping or driving situation; The speed change detection unit 51 and the camera which checks a crisis situation in a vehicle stop or driving condition, detects an increase or decrease of the vehicle speed in connection with a speedometer, and generates a speed increase and decrease signal and a speed value at a constant speed increase and decrease. 20) a distance sensor 52a is provided at a peripheral position, and a distance of the distance sensor 52a at a position closest to an external object is set based on the speed measured by the speed change detector 51. When the distance is closer than the distance, the distance detection signal 52 and the distance change detection unit 52 for generating a distance value, the shock detection unit 53 for generating a shock detection signal from the shock detection sensor 53a installed around the camera 20, respectively Crisis situation detection module 50 consisting of; When the crisis situation signal is generated by the crisis situation detection module 50, the video transmitted from the camera 20 is recorded on the temporary recording disk 43 for a predetermined time, but the speed change detection unit 51 is recorded on the recorded video. And a recording module 60 for recording both the speed value and the distance value transmitted from the shock detection unit 53; A crisis value generation module (70) for generating a crisis value expressed by a numerical value by determining whether the speed and distance determined at the end of the recorded video affect the seriousness of the crisis situation; A recording medium 40 mounted at a predetermined position of the vehicle and having a recording disc 42 embedded in the housing 41 to serve as a vehicle black box;  First, the recorded video related to the impact is stored and then compared with each other, by comparing the height of each crisis value among the n recorded video stored in the first cycle, with n recorded video stored on the temporary recording disk. A storage module 80 for extracting a specific recorded video and storing the same on a recording disk of a recording medium; Characterized in that the AVN (10) to display the image of the camera 20 and the stored image of the recording disk 42, the deletion and correction function of the stored image is blocked; A crisis recording system using vehicle AVN. The method of claim 1, Further provided with a camera control box 30 which can be connected to the camera 20 by having a plurality of input and output terminals, The camera control box (30) to the AVN 10, characterized in that the camera can control the shooting, zoom setting function, characterized in that the crisis recording system using the vehicle AVN. The method of claim 1, The crisis value generation module 70, A vehicle having a look-up table set as a numerical value whether or not the speed value and the distance value affect the weight of a crisis situation, and the crisis value is calculated by substituting the distance value and the speed value into the look-up table. A crisis recording system using AVN. The method of claim 1, A storage capacity determining module (90) for determining whether a stored image stored in the recording disk (42) of the recording medium (40) occupies a specific limit capacity in the total storage capacity; When the limit capacity signal is generated in the storage capacity identifying module 90, a lookup table that is set as a numerical value indicates whether the distance value and the speed value detected based on the start time point of the storage image are in the light of a crisis situation. A crisis occurrence value generation module 100 configured to calculate a crisis occurrence value by substituting the distance value and the speed value into the lookup table; And an automatic deletion processing module 110 for extracting a plurality of stored images having a low crisis occurrence value of the crisis generation value generation module 100 and automatically performing a deletion process on the recording disc 42. Crisis situation recording system using vehicle AVN. The method of claim 4, wherein While extracting a plurality of stored images having a low crisis occurrence value of the crisis generation value generation module 100 to display sequentially through the AVN 10 at the moment when the driver starts, to give the driver the right to delete, And an automatic display module (120) for automatically deleting the display image when the driver does not delete the displayed image. The emergency recording system using the vehicle AVN is further included. The method of claim 1, The recording medium 40, And a recording disc (42) and the temporary recording disc (43) in the housing (41), crisis situation recording system using a vehicle AVN.

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