WO2007049520A1

WO2007049520A1 - Information recording apparatus, information recording method, information recording program, and computer readable recording medium

Info

Publication number: WO2007049520A1
Application number: PCT/JP2006/320948
Authority: WO
Inventors: Hiroaki Shibasaki
Original assignee: Pioneer Corporation
Priority date: 2005-10-28
Filing date: 2006-10-20
Publication date: 2007-05-03

Abstract

In an information recording apparatus (100) for overwrite-recording a series video data of images captured by a mobile unit, a detecting part (101) detects the behavior of the mobile unit. A judging part (102) judges whether a result of detection by the detecting part (101) is a dangerous behavior of the mobile unit. An identifying part (103) identifies, based on a result of judgment by the judging part (102), danger information of the dangerous behavior of the mobile unit. A storing part (104) stores, based on the judgment result, both the video data and the danger information identified by the identifying part (103) into a recording medium when the dangerous behavior is detected.

Description

Specification

Information recording apparatus, information recording method, information recording program, and computer-readable recording medium

Technical field

[0001] The present invention relates to an information recording apparatus, an information recording method, an information recording program, and a computer-readable recording medium for recording information. However, the use of the present invention is not limited to the above-described information recording apparatus, information recording method, information recording program, and computer-readable recording medium.

Background art

[0002] Conventionally, a drive recorder that records the surrounding situation of a running vehicle is known, similar to a flight recorder mounted on an airplane. Such a drive recorder has, for example, a front camera for photographing the front of the vehicle, a rear camera for photographing the rear, and a function of writing the front and rear images in a predetermined area of the image memory in synchronization with a reference signal. Then, vehicle position information and time information are added to the image memory information, and the image data is constantly recorded in the buffer memory. By inputting a signal greater than a predetermined value of the impact detection sensor, it is possible to specify the vehicle to escape when encountering an incident such as an escape event (for example, refer to Patent Document 1 below).

[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2004-224105

Disclosure of the invention

Problems to be solved by the invention

[0004] However, even if a vehicle that escapes is identified by the above-described conventional technology, it is still labeled as a past accident history. It will affect the calculation of. In other words, the cause of a traffic accident is less likely due to the driver's driving skill and driving tendency of the accident vehicle, so even if the accident is caused by the driving skill and driving tendency of the other party, he is a good driver. An example of this is the fact that this fact is not taken into account in calculating insurance premiums.

Means for solving the problem In order to solve the above-described problems and achieve the object, an information recording apparatus according to claim 1 is an information recording apparatus for overwriting and recording a series of video data imaged from a moving body. Detection means for detecting the behavior of the mobile object, determination means for determining whether the detection result detected by the detection means is a dangerous behavior of the moving body, and the determination result determined by the determination means Based on the identification means for identifying the danger information that becomes the dangerous behavior of the mobile object, the video data when the dangerous behavior is detected based on the determination result, and the identification means Storage means for storing the danger information in a recording medium.

[0006] Further, an information recording method according to the invention of claim 5 is an information recording method for overwriting and recording a series of image data picked up from a moving body, a detection step of detecting the behavior of the moving body; Based on the determination step for determining whether the detection result detected by the detection step is a dangerous behavior of the moving body, and the determination result determined by the determination step, the dangerous state of the moving body is determined. On the recording medium, a specific process for identifying dangerous information that becomes a behavior, video data when the dangerous behavior is detected based on the determination result, and the dangerous information identified by the specific process are recorded on a recording medium. And a preservation step for preservation.

[0007] An information recording program according to the invention of claim 6 causes a computer to execute the information recording method according to claim 5.

[0008] The computer-readable recording medium according to the invention of claim 7 is

The information recording program described in 6 is recorded.

Brief Description of Drawings

FIG. 1 is a block diagram showing an example of a functional configuration of an information recording apparatus that is useful in the present embodiment.

FIG. 2 is a flowchart showing the contents of processing of the information recording apparatus according to the present embodiment.

[FIG. 3] FIG. 3 is an explanatory view showing an example of the vicinity of a dashboard of a vehicle in which a navigation device that is effective in the present embodiment is installed.

[FIG. 4] FIG. 4 shows an example of a hardware configuration of a navigation device that is effective in this embodiment. FIG.

[FIG. 5] FIG. 5 is a flowchart showing the contents of the trigger information saving process in the navigation device which is effective in the present embodiment.

[FIG. 6] FIG. 6 is a flow chart showing the contents of the excellent driver determination process in the navigation device which is effective in this embodiment.

[FIG. 7] FIG. 7 is an explanatory diagram showing an example of a trigger information list useful for the present embodiment.

[FIG. 8] FIG. 8 is an explanatory diagram showing an example of a degree of superiority that is useful in this embodiment.

Explanation of symbols

[0010] 100 information recording apparatus

101 detector

102 Judgment part

103 Specific part

104 Storage

105 Judgment part

106 Output section

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of an information recording apparatus, an information recording method, an information recording program, and a computer-readable recording medium according to the present invention will be described in detail with reference to the accompanying drawings.

[0012] (Embodiment)

(Functional configuration of information recording device)

With reference to FIG. 1, the functional configuration of the information recording apparatus that is useful in the present embodiment will be described. FIG. 1 is a block diagram showing an example of a functional configuration of an information recording apparatus according to the present embodiment.

In FIG. 1, an information recording apparatus 100 that overwrites and records a series of video data captured from a moving body includes a detection unit 101, a determination unit 102, a specification unit 103, a storage unit 104, and a determination unit. 105 and an output unit 106.

[0014] The detection unit 101 detects the behavior of the moving object. For example, the behavior of a moving object is It may be configured to detect information based on the output of various sensors mounted on the moving body with information including operations and operations. More specifically, vibration sensors, G sensors, contact sensors for moving bodies, and sensors that can detect information related to operations such as steering wheel operation, direction instruction signal input operation, accelerator pedal operation, and brake pedal operation may be used. .

The determination unit 102 determines whether or not the detection result force detected by the detection unit 101 results in a dangerous behavior of the moving body. Judgment regarding dangerous behavior is dangerous when, for example, the output value of a vibration sensor, G sensor, etc. exceeds a specified value, approximates to a predetermined pattern indicating an abnormality, or when a contact sensor is activated. It may be determined that the behavior is correct. Further, the determination regarding the dangerous behavior may be, for example, by detecting information regarding the operation of the moving body and determining that the operation is a dangerous behavior when the operation is a dangerous operation. More specifically, the operation of a moving object is considered to be a dangerous behavior when an operation that makes a sudden handle more than a predetermined angle, a handle operation without direction indication, or unnecessary acceleration and deceleration is detected. It may be a configuration that is judged as an operation.

Based on the determination result determined by the determination unit 102, the specifying unit 103 specifies risk information that causes a dangerous behavior of the moving object. The danger information may be, for example, information including at least one of the number of behavior detections by the detection unit 101 and an output value related to the behavior. More specifically, it may include the number of times that the vibration sensor, G sensor, etc. output an output value exceeding the specified value, its value, and information for identifying the sensor. Further, the danger information may include point information indicating a point detected by the detection unit 101. For example, the point information may be information including latitude / longitude, road shape, date / time, weather, and the like.

[0017] The storage unit 104, based on the determination result determined by the determination unit 102, video data when a dangerous behavior of the moving object is detected, danger information identified by the identification unit 103, Is stored on a recording medium.

[0018] Based on the danger information stored by the storage unit 104, the determination unit 105 determines the driving skill level of the driver of the mobile object. For example, the driving proficiency level may be determined according to a threshold value of danger information corresponding to each rank, which may be classified according to a plurality of ranks.

The output unit 106 outputs the determination result determined by the determination unit 105. Judgment result For example, the output may be transmitted from the display unit or audio output unit (not shown) to an external device via communication.

[0020] (Contents of processing of information recording apparatus)

Next, the contents of processing of the information recording apparatus 100 according to the present embodiment will be described with reference to FIG. FIG. 2 is a flowchart showing the contents of processing of the information recording apparatus according to the present embodiment. In the flowchart of FIG. 2, first, the detection unit 101 determines whether or not the behavior of the moving object has been detected (step S 201). The behavior of the moving body may be detected based on the output of various sensors mounted on the moving body, for example, information including the operation and operation of the moving body.

[0021] In step S201, waiting for detection of the behavior of the moving body, and if it is detected (step S201: Yes), the determination unit 102 then moves the result detected in step S201. It is determined whether or not the force causes dangerous behavior of the body (step S202). Judgment regarding dangerous behavior is based on dangerous behavior when, for example, the output value of a vibration sensor or G sensor exceeds a specified value, approximates to a predetermined pattern indicating an abnormality, or when a contact sensor is activated. You may judge. In addition, the judgment regarding the dangerous behavior may be, for example, by detecting information related to the operation of the moving body and determining that the operation is a dangerous behavior when the operation is dangerous.

[0022] Subsequently, the specifying unit 103 specifies danger information that is a dangerous behavior of the moving object based on the determination result determined in step S202 (step S203). The danger information may include, for example, the number of behavior detections in step S201, the output value related to the behavior, and / or point information indicating the detection point.

[0023] Next, based on the determination result determined in step S202, the storage unit 104, on the recording medium (not shown), video data when the dangerous behavior of the moving object is detected in step S201, and step S The hazard information identified in 203 is stored (step S204). The video data and danger information can be stored in the same file and stored separately, or they can be stored as different files, or can be stored in various forms. In other words, the 1S danger information, which is data that is deleted when the video data is stored to some extent in the memory, may be information stored for a certain period of time. Ie Image data and danger information do not necessarily need to be linked.Danger information is information that is accumulated when dangerous behavior of a moving object is detected. Moh.

[0024] Based on the danger information stored in step S204, the determination unit 105 determines the driving skill level of the driver of the mobile object (step S205). For example, the driving skill level may be determined based on a threshold value of danger information corresponding to each rank, which may be classified by a plurality of ranks. In addition, a configuration may be used in which a reference value for the number of times risk information is acquired in a certain period is set in advance, and the driving proficiency level is determined by determining whether it exceeds or falls below the reference value. .

Then, the output unit 106 outputs the determination result determined in step S205 (step S206), and ends the series of processes. The determination result may be output by, for example, a configuration in which an output instruction is received or a display unit or voice output unit (not shown) may be output.

[0026] As described above, according to the present embodiment, it is possible to save video data and behavior risk information at the time when an accident is encountered or when an accident is attempted. Therefore, it is possible to accurately determine the driving proficiency level by storing the danger information.

[0027] Examples of the present invention will be described below. In the present embodiment, an example in which the information recording apparatus of the present invention is implemented by a navigation apparatus mounted on a moving body such as a vehicle (including a four-wheeled vehicle and a two-wheeled vehicle) will be described.

[0028] (Peripheral device configuration of navigation device)

First, the configuration of peripheral devices of the navigation device that is useful in this embodiment will be described with reference to FIG. FIG. 3 is an explanatory view showing an example of the vicinity of a dashboard of a vehicle in which a navigation device that is useful in this embodiment is installed.

In FIG. 3, the navigation device 300 is installed on the dashboard of the vehicle. The navigation device 300 includes a main body M and a display unit (display) D. The display unit D displays the current location of the vehicle, map information, and the current time. [0030] In addition, the navigation device 300 is connected to an in-vehicle camera 311 installed on the dashboard and an in-vehicle microphone 312 installed in the sun noise generator. The in-vehicle camera 311 can change the direction of the lens and can capture images inside and outside the vehicle. The in-vehicle microphone 312 is used for operations such as voice input of the navigation device 300 or recording the state in the vehicle. The in-vehicle camera 311 may be, for example, a fixed camera that is fixed to the back surface of a knock mirror and captures images outside the vehicle.

[0031] Although not shown, the in-vehicle camera 311 may be attached to the rear portion of the vehicle. When the vehicle-mounted camera 311 is attached to the rear part of the vehicle, it is possible to check the safety behind the vehicle and to record the situation at the time of rear-end collision when other vehicle forces are also rear-end. In addition, the in-vehicle camera 311 may be an infrared camera that records in a dark place. Further, a plurality of in-vehicle cameras 311 and in-vehicle microphones 312 may be installed in the vehicle, or may be movable cameras.

[0032] The navigation device 300 has a drive recorder function of recording the traveling state of the vehicle, as well as searching for a route to the destination point and recording information. The drive recorder function is a function of the video and audio obtained with the in-vehicle camera 311 and the in-vehicle microphone 312 and the current position information and traveling speed of the vehicle obtained with the GPS 415 and various sensors 416 described later. Changes and the like are recorded on a recording medium (a magnetic disk 405 and an optical disk 407 described later) of the navigation device 300.

[0033] By constantly recording the driving state using such a drive recorder function, when the vehicle is involved in an accident or when an accident occurs around the vehicle, it is used to investigate the facts. You can get materials. Information to be recorded using the drive recorder function may be accumulated as long as the recording capacity of the recording medium is not exceeded, or may be erased sequentially with a predetermined time remaining. In addition, the recording medium may have a recording area for overwriting recording that constantly records the running state, and a storage area for saving the running state when involved in an accident, or an overwrite recording. It may be configured to have multiple recording media for storage and multiple recording media for storage.

[0034] (Hardware configuration of navigation device 300)

Next, referring to FIG. 4, the hardware configuration of the navigation apparatus 300 that is useful in the present embodiment is used. The composition will be described. FIG. 4 is a block diagram showing an example of a hardware configuration of a navigation apparatus that works on the present embodiment.

In FIG. 4, the navigation device 300 is mounted on a moving body such as a vehicle, and includes a CPU 401, a ROM 402, a RAM 403, a magnetic disk drive 404, a magnetic disk 405, and an optical disk drive 406. , Optical disc 407, audio IZF (interface) 408, microphone 409, speaker 410, input device 411, video IZF412, display 413, communication IZF414, GPS unit 415, various sensors 416, camera 417. Each component 401 to 417 is connected by a node 420.

First, the CPU 401 governs overall control of the navigation device 300. The ROM 402 stores programs such as a boot program, a route search program, a route guidance program, a voice generation program, a map information display program, a communication program, a database creation program, and a data analysis program. The RAM 403 is used as a work area for the CPU 401.

Here, the route search program searches for an optimum route from the departure point to the destination point using map information or the like recorded on the optical disc 407 described later. Here, the optimal route is the shortest (or fastest) route to the destination or the route that best meets the conditions specified by the user. The guidance route searched by executing the route search program is output to the audio IZF 408 and the video IZF 412 via the CPU 401.

[0038] Further, the route guidance program includes the guidance route information searched by executing the route search program, the current location information of the navigation device 300 acquired by the communication IZF414, and the map information read from the optical disc 407. Based on this, real-time route guidance information is generated. The route guidance information generated by executing the route guidance program is output to the audio IZF 408 and the video IZF 412 via the CPU 401.

[0039] The sound generation program generates tone and sound information corresponding to the pattern.

. That is, based on the route guidance information generated by executing the route guidance program, the virtual sound source corresponding to the guidance point is set and the voice guidance information is generated, and output to the voice IZF 408 via the CPU 401. [0040] Further, the map information display program determines the display format of the map information displayed on the display 413 by the video IZF 412 and displays the map information on the display 413 according to the determined display format.

[0041] Further, the CPU 401 may perform determination of a good driver based on trigger information described later. For example, the configuration may be such that the determination of a good driver is performed by referring to information on triggers set for each rank of goodness related to a plurality of driving. More specifically, a configuration may be adopted in which the level of superiority such as rank A, rank B, and rank C is determined using the number of triggers within a predetermined period as a threshold value. Details will be described later in FIG.

The magnetic disk drive 404 controls reading and writing of data to the magnetic disk 405 according to the control of the CPU 401. The magnetic disk 405 records data written under the control of the magnetic disk drive 404. As the magnetic disk 405, for example, HD (node disk) or FD (flexible disk) can be used.

In addition, the optical disk drive 406 controls reading and writing of data to the optical disk 407 according to the control of the CPU 401. The optical disc 407 is a detachable recording medium from which data is read according to the control of the optical disc drive 406. The optical disk 407 can also use a writable recording medium. Further, the removable recording medium may be a power MO of the optical disc 407, a memory card, or the like.

[0044] As an example of information recorded on the magnetic disk 405 and the optical disk 407, images and sounds inside and outside the vehicle obtained by the in-vehicle camera 311 and the in-vehicle microphone 312 shown in FIG. Information on the current position of the detected vehicle, output values from various sensors 416 described later, and the like can be given. In addition, the trigger information generated based on the trigger detected from the output of the various force sensors 416 described later may be accumulated and stored. These pieces of information are recorded by the drive recorder function of the navigation device 300, and are used as verification materials when a traffic accident occurs. Such information may be read out as necessary and used as data for determining the driving skill of the driver and the driving propensity.

As another example of information recorded on the magnetic disk 405 and the optical disk 407, Map information used for route search and route guidance. The map information includes background data that represents features (features) such as buildings, rivers, and the ground surface, and road shape data that represents the shape of the road. The original drawing. When the navigation device 300 is guiding a route, the map information and the current location of the vehicle acquired by the GPS unit 415 described later are displayed in an overlapping manner.

[0046] The road shape data further includes traffic condition data. The traffic condition data includes, for example, the presence / absence of traffic lights and pedestrian crossings, the presence / absence of highway doorways and junctions, the length (distance) of each link, road width, direction of travel, road type (high speed). Road, toll road, general road, etc.).

[0047] The traffic condition data stores past traffic information obtained by statistically processing past traffic information on the basis of, for example, the season / day of the week of "Large holidays". The navigation device 300 obtains information on traffic jams currently occurring based on road traffic information received by communication IZF414, which will be described later, but it is possible to predict traffic jam conditions at specified times based on past traffic jam information. .

In this embodiment, the map information is recorded on the magnetic disk 405 and the optical disk 407. However, the present invention is not limited to this. The map information may be provided outside the navigation device 300, not the information recorded only in the one integrated with the navigation device 300 hardware. In that case, the navigation device 300 acquires the map information via the network through the communication IZF 414, for example. The acquired map information is stored in the RAM 403 or the like.

The audio IZF 408 is connected to an audio input microphone 409 (for example, the in-vehicle microphone 312 in FIG. 3) and an audio output speaker 410. Audio received by the microphone 409 is AZD converted in the audio IZF408. In addition, sound is output from the speaker 410. Note that the sound input from the microphone 409 can be recorded on the magnetic disk 405 or the optical disk 407 as sound data.

[0050] Further, examples of the input device 411 include a remote controller, a keyboard, a mouse, and a touch panel provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like. [0051] In addition, video IZF 412 is connected to display 413 and camera 417 (for example, in-vehicle camera 311 in FIG. 3). Specifically, the video IZF412 is, for example, a graphic controller that controls the entire display 413, a buffer memory such as VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and an output from the graphic controller. It is configured by a control IC that controls display of the display 413 based on the image data to be displayed.

The display 413 displays icons, cursors, menus, windows, or various data such as characters and images. As this display 413, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted. The display 41 3 is installed, for example, in a manner like the display unit D in FIG. A plurality of displays 413 may be provided in the vehicle, for example, for the driver and for a passenger seated in the rear seat.

[0053] The camera 417 captures an image inside or outside the vehicle. The image can be either a still image or a moving image.For example, a camera 417 captures the behavior of a passenger inside the vehicle, and the captured image is recorded on a recording medium such as a magnetic disk 405 or an optical disk 407 via a video I / F 412. Output to. The camera 417 captures the situation outside the vehicle, and outputs the captured image to a recording medium such as the magnetic disk 405 or the optical disk 407 via the video IZF 412. The video output to the recording medium is overwritten and recorded as a drive recorder image.

Further, the communication IZF 414 is connected to a network via radio and functions as an interface between the navigation apparatus 300 and the CPU 401. The communication IZF 414 is further connected to a communication network such as the Internet via radio, and also functions as an interface between the communication network and the CPU 401.

[0055] Communication networks include LANs, WANs, public line networks, mobile phone networks, and the like. Specifically, the communication IZF414 is composed of, for example, FM tuner, VICS (Vehicle Information and Communication System) Z beacon Resino, wireless navigation device, and other navigation devices. Get road traffic information such as traffic regulations. VICS is a registered trademark. [0056] Further, the GPS unit 415 uses a received wave from a GPS satellite and output values from various sensors 416 (for example, an angular velocity sensor, an acceleration sensor, a tire rotation number, etc.) to be described later, Information indicating the current location of the location piggy-on device 300 is calculated. The information indicating the current location is information that identifies one point on the map information, such as latitude'longitude and altitude. Further, the GPS unit 415 outputs an odometer, a speed change amount, and an azimuth change amount using output values from various sensors 416. This makes it possible to analyze dynamics such as sudden braking and sudden handling.

[0057] Here, a method of specifying the current location using the GPS unit 415 will be described. First, in GPS, a total of 24 GPS satellites are arranged, 4 each in 6 orbital planes around the earth. These satellites are always orbited so that the same satellites are located at the same time every day, and are always 5 from any point on the earth (but need to have a good view)! I can see the satellite.

[0058] The GPS satellites are equipped with cesium (Cs) atomic clocks (oscillators) that keep accurate time in sync with the time of each satellite. In addition, each satellite is equipped with two cesium oscillator power units and two rubidium (Rb) oscillators. This is because accurate time is indispensable for GPS position measurement.

[0059] GPS satellite force and others are transmitting radio waves with two frequencies of 1575.42MHz (Ll) and 1227.60MHz (L2) (hereinafter referred to as GPS signals). This radio wave is modulated by a random number code called pseudo random code (Pseudo Random Noise Code). When it is received by GPS 415, etc., the signal content is decoded by referring to the code corresponding to the random number table. To do.

[0060] The GPS unit 415 measures the time difference between the GPS code and the time when the GPS signal is emitted and the time when the GPS device receives the GPS signal, using the decoded code and the clock in the GPS device. Then, multiply the time difference by the propagation speed of the radio wave to calculate the distance from the GPS satellite to your device (distance = speed x time). This time is synchronized to Coordinated Universal Time (UTC).

[0061] Since GPS satellites send accurate information on the orbit, the current location of the GPS satellite can be accurately known. Therefore, if you know the GPS satellite power distance, The location is any location on the sphere centered on the GPS satellite and with the calculated distance as the radius. The GPS signal code string is repeatedly sent at intervals of about lms. Since the propagation speed of the GPS signal is 400, OOOkmZ seconds, the maximum measurement distance is 400, OOO X O. 0 01 = 400km. Therefore, it is necessary to know the current location of the device in advance for accuracy of about 100km.

[0062] As described above, when the distances from three of the GPS satellites are calculated, the current location of the device is either one of the two points where the three spherical surfaces intersect. Also, one of the two points is also far away from the predicted point force, so in principle one point is determined. In reality, however, the current candidate point calculated (the intersection of the three faces) is not two. This is mainly because the accuracy of the clock mounted on the GPS unit 415 is lower than that of the atomic clock mounted on the GPS satellite, resulting in an error in the calculation results.

[0063] For this reason, the GPS unit 415 receives GPS signals from a total of four GPS satellites.

This can be considered to be obtained by introducing new information (formula) with the error of the clock on the GPS unit 415 side as another unknown. In this way, the GPS unit 415 can obtain a substantially accurate current point that converges to one point by receiving GPS signals from four GPS satellites.

[0064] The various sensors 416 are a vehicle speed sensor, an acceleration sensor, a G sensor, an angular velocity sensor, etc., and their output values are used for calculation of the current position by the GPS unit 415, measurement of changes in speed and direction, etc. It is done. The various sensors 416 include sensors that detect each operation of the vehicle by the driver. The detection of each operation of the vehicle may be configured to detect, for example, steering wheel operation, turn signal input, accelerator pedal depression, or brake pedal depression. Also, the output values of the various sensors 416 can be data recorded by the drive recorder function.

[0065] In addition, the various sensors 416 may be configured so that a trigger for storing the drive recorder image is set in advance and the drive recorder image is stored when the trigger is detected. . In addition, when a trigger is detected, the trigger information may be generated and accumulated in a recording medium such as the magnetic disk 405 or the optical disk 407. The recording medium that stores trigger information cumulatively is, for example, a record for cumulative storage. It may be a medium or a recording area for cumulative storage.

[0066] The triggers in the various sensors 416 may be set, for example, when a vibration sensor detects a vibration exceeding a specified level or a predetermined vibration pattern. The predetermined vibration pattern may be a vibration pattern that shows an abnormality such as a sudden rise. For example, the trigger may be set when the G sensor detects a G that exceeds the specified level or a pattern of how to apply a predetermined G force. The prescribed G force may be a pattern that shows an abnormality, such as a sudden rise. Alternatively, a configuration in which the presence / absence of contact with the other, the operation of an airbag, or the stop of the vehicle is triggered by a contact sensor of the vehicle body may be used. Furthermore, as long as there is one or more of the above-mentioned triggers, a combination of multiple triggers may be used. The trigger information is information related to trigger detection, such as the type of trigger, the trigger value, and the time when the trigger was detected. Details will be described later in FIG.

[0067] Of the functional configuration of the information recording apparatus 100 according to the embodiment, the detection unit 101 includes a microphone 409, a camera 417, and various sensors 416, and the determination unit 102, the identification unit 103, and the determination unit 105 include Thus, the function of the storage unit 104 is realized by the magnetic disk 405 and the optical disk 407, and the output unit 106 is realized by the speaker 410, the display 413, and the communication IZF 414.

[0068] (Contents of processing of navigation device 300)

Next, the contents of the processing of the navigation device 300, which is useful for this embodiment, will be described with reference to FIGS. FIG. 5 is a flowchart showing the contents of the trigger information saving process in the navigation apparatus according to the present embodiment. In the flowchart of FIG. 5, first, the navigation apparatus 300 determines whether or not the vehicle is driving (step S501). For example, the determination regarding the traveling of the vehicle may be made with reference to the outputs of the various sensors 416.

[0069] In step S501, after waiting for the vehicle to be running, if the vehicle is running (step S501: Yes), the camera 417 starts shooting the drive recorder image (step S501: step S501). S502). The drive recorder image may be, for example, a moving image at a certain time such as an image around the vehicle. The drive recorder image may be overwritten on a recording medium such as the magnetic disk 405 or the optical disk 407. For example, overwrite recording A moving image in a certain time is sequentially overwritten and recorded so as not to exceed the recording capacity of the recording medium, and is recorded on a recording medium for overwriting recording or a recording medium having a recording area for overwriting recording.

[0070] Next, the CPU 401 determines whether or not the force detected the trigger (step S503). The trigger 1 may be, for example, an opportunity to save the drive recorder image by the output of the various sensors 416. More specifically, it may be set when a vibration sensor detects a vibration exceeding a specified level or a predetermined vibration turn. The predetermined vibration pattern may be a vibration pattern that shows an abnormality, such as a sudden rising vibration. The trigger may be set when, for example, the G sensor detects a G exceeding the specified value or a pattern of how to force a predetermined G. The prescribed G force may be a pattern that shows an abnormality, such as a sudden rising G. Alternatively, it may be configured such that the contact sensor of the vehicle body is used as a trigger for the presence or absence of contact with the other or the operation of the airbag. In addition, the trigger may be detected by detecting the driving operation of the driver that causes dangerous behavior of the vehicle based on the output of various sensors 416. More specifically, it is possible to trigger a handle operation different from normal, such as a handle operation at a specified angle or a special handle operation when drowsiness has occurred without issuing a sudden handle or blinker exceeding the specified angular velocity. Good. In addition, acceleration beyond the specified acceleration 'deceleration and signal, when there was strong deceleration at the intersection, there was no deceleration due to a red signal (yellow signal), and pedal operation peculiar when drowsiness etc. A configuration that uses a pedal operation different from normal as a trigger may be used. For abnormal steering operation and pedal operation, a configuration may be used in which a bullying motion pattern is registered and compared with the registered motion pattern. Intersections without signals and other points that need to be stopped may be acquired based on map information recorded on the recording medium. The color of the signal may be determined based on the image taken by the camera 417.

If a trigger is detected in step S503 (step S503: Yes), the CPU 401 generates trigger information (step S504). The trigger information is information related to the detection of a single trigger, such as the type of trigger, the trigger value, the time when the trigger was detected, and the location where the trigger was detected, and details will be described later in FIG. In addition, the trigger information can be generated for each driver. In that case, the driver information can be generated via the input device 411. It may be configured to accept input of one information or recognize the driver from the driver image taken by the camera 417. Furthermore, the generation of trigger information may be performed continuously for a certain time before and after the trigger is detected in step S503, or the generated trigger information may be displayed on the display 413.

[0072] Then, the recording medium such as the magnetic disk 405 and the optical disk 407 stores the trigger information generated in step S504 (step S505). The recording medium for storing the trigger information may be, for example, a recording medium for cumulative storage or a recording area for cumulative storage.

[0073] Although not shown in the figure, when a trigger is detected in step S503, the drive recorder image may be stored together with the storage of one trigger information. As the drive recorder image, for example, an image at a detection time point when a trigger is detected in step S503 and a predetermined time before and after the detection may be stored. In addition, a configuration in which the fixed time can be set by the passenger may be configured such that when the trigger is detected again within a predetermined time from the detection time, the storage time can be extended. In addition, the drive recorder image may be stored in a storage recording medium or a recording medium having a storage area for storage.

[0074] Then, navigation device 300 determines whether or not the vehicle has finished traveling (step S506). If no trigger is detected in step S503 (step S503: No), the process proceeds to step S506 to determine whether or not the vehicle has finished traveling. For example, the determination regarding the traveling of the vehicle may be made with reference to the outputs of the various sensors 416. More specifically, it may be determined that the vehicle has finished traveling when the output of the various sensors 416 stops.

[0075] If the vehicle does not finish traveling in step S506 (step S506: No), the process returns to step S502 and the process is repeated. In step S506, when the vehicle finishes running (step S506: Yes), the series of processing ends.

[0076] In the description of this figure, in step S502, an image around the vehicle is captured and overwritten as a drive recorder image, but other information related to the running state such as the output of various sensors 416 is also included. A configuration for overwriting recording may be adopted. Also, In that case, at the stage when the trigger is detected in step S503, the detected detection time and the output at a fixed time before and after the detection may be stored.

FIG. 6 is a flowchart showing the contents of the excellent driver determination process in the navigation device that is useful in the present embodiment. In the flowchart of FIG. 6, first, the navigation apparatus 300 determines whether or not it has received an instruction for determining a good driver via the input device 411 (step S601). For example, an excellent driver judgment can be performed by receiving an input via the input device 411 that can be performed by specifying a driver to be judged, or by obtaining information about the driver from the camera 417, the microphone 409, and various sensors 416. It can be configured to recognize the driver.

[0078] In step S601, after waiting for an instruction to determine a good driver to be accepted (step S601: Yes), CPU 401 then determines whether or not the recording medium has trigger information. (Step S602). For example, the trigger information may be accumulated and stored in a recording medium and may be associated with the driver.

[0079] If there is no trigger information in step S602 (step S602: No), the information not subject to determination is output (step S605), and the series of processing ends. For example, the non-judgment information may be displayed together with a message for notifying that there is no trigger information of the person who is the subject of the good driver judgment, or a message for prompting input.

[0080] If there is trigger information in step S602 (step S602: Yes), then CPU 401 performs an excellent driver determination (step S603). For example, the determination of the excellent driver may be made by referring to the trigger information and dividing the plurality of ranks into a plurality of ranks related to the excellent level. More specifically, based on the preset number of trigger detections within a given period for each rank, the total number of triggers multiplied by a coefficient corresponding to each rank within a given period, etc. The degree of excellence may be determined. Furthermore, the number of triggers that exceeded a certain value within a given period, the highest value trigger within a given period, the presence or absence of a trigger value that could lead to a serious accident, the number of triggers near intersections or at curves It may be judged based on (the skill is low if it is low) or the number of triggers on a normal road (the driving is rough if there are many). Power!] You can also judge by taking into account information such as weather and traffic jams. Then, CPU 401 outputs the determination result determined in step S603 (step S604), and the series of processing ends. The output of the determination result may be displayed on the display 413 or output from the speaker 410, for example.

Next, trigger information useful for the present embodiment will be described with reference to FIG. FIG. 7 is an explanatory diagram showing an example of a trigger information list that works on the present embodiment. In FIG. 7, the trigger information list 700 includes the trigger type, trigger value, detection time, detection point, and weather, and is generated in step S504. The trigger information list 700 is read out as necessary even in a configuration generated for each of a plurality of drivers, and is used for determination processing and output (display) processing.

[0083] The trigger type is, for example, a trigger set for various sensors 416 such as a G sensor, and there may be a plurality of triggers. For example, the trigger value is a numerical value of the trigger at the time when the trigger is detected, and may be a numerical table or a graph showing the transition of the numerical value before and after the detection. The trigger value may be managed by dividing the trigger level for each rank. Also, the detection time may be expressed in detail up to the hour. Furthermore, the detection points in the trigger information list 700 may be configured to indicate road intersection features such as power intersections indicated by latitude and longitude, railroad crossings, curves and curve curvature, and addresses. The feature of the road shape may be obtained by analyzing map information recorded on a recording medium or an image photographed by the camera 417. Also, obtain weather information from the wiper operating status and weather information on the Internet.

Next, with reference to FIG. 8, a description will be given of the superiority that is useful in this embodiment. FIG. 8 is an explanatory diagram showing an example of the degree of excellence that works with this embodiment. In FIG. 8, the superiority table 800 shows the superiority and its calculation period, and the determination is performed in step S603. The calculation period determines the level of excellence in the specified calculation period, which can be specified by the user at the time of determination. In addition, if it is possible to make a list of multiple drivers, it will be possible to accept instructions for determining good drivers in step S601! .

[0085] As described above, according to this embodiment, when a trigger is detected at the time of encountering an accident or at the time of an attempted accident (Haryno, To), the number of trigger detections is displayed along with the video. And trigger values and status can be recorded. Therefore, it is possible to determine the driving skill and driving tendency of the driver using such information. The user can perform safe driving by recognizing his / her driving technology and driving tendency.

[0086] Further, according to the present embodiment, the drive recorder image and the trigger information are stored by detecting the trigger. Therefore, if the trigger is not detected, the drive recorder image and the trigger information are not stored. Do not use extra recording area. Therefore, the load on the device can be reduced and necessary data can be securely stored.

It should be noted that the premium driver determination in the present embodiment can be set by the insurance company according to the level of superiority by referring to an insurance fee setting table (not shown) or the like, which may be configured by an insurance company person as necessary. It is good also as a structure. In that case, it is possible to set an appropriate insurance premium that reflects the driver's driving skill and driving tendency.

In the present embodiment, the trigger for storing the drive recorder image is used as the trigger information. However, a trigger for cumulative storage may be used as the trigger information separately from the storage of the drive recorder image. The trigger for cumulative storage may be, for example, information on a minor trigger for determining a driver skill that does not activate the drive recorder. In other words, appropriately set trigger information can be read in each case, and it is possible to accurately deal with accident information analysis and driver determination.

Further, in this embodiment, the trigger information and the superiority are recorded on the recording medium or displayed on the display 413. The power is transmitted to an external server and managed by the external server. May be. In particular, the insurance premiums of each driver can be set quickly by managing the insurance company.

[0090] Further, in the present invention, if the data protection function and the data encryption function are provided, it is possible to prevent the tampering of the data about the trigger information and the superiority, and to appropriately Data can be used.

Note that the information recording method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is hard disk, flexible disk, It is recorded on a computer-readable recording medium such as a CD-ROM, MO, or DVD, and is executed by reading the recording medium force by the computer. The program may be a transmission medium that can be distributed through a network such as the Internet.

Claims

The scope of the claims

[1] An information recording device that overwrites and records a series of video data captured from a moving object, and

Detecting means for detecting the behavior of the moving body;

Determination means for determining whether the detection result detected by the detection means is a dangerous behavior of the moving body;

Based on the determination result determined by the determination means! /, A specifying means for specifying danger information that is a dangerous behavior of the moving object,

A storage unit for storing, on a recording medium, video data when the dangerous behavior is detected based on the determination result, and the danger information specified by the specifying unit; Information recording device.

2. The information recording apparatus according to claim 1, wherein the danger information is information including at least one of the number of times the behavior is detected by the detection means and an output value related to the behavior.

[3] The information recording apparatus according to [1], wherein the danger information includes point information indicating a detection point of the detection result.

[4] Judgment means for judging a driving skill level of a driver of the moving body based on the danger information stored by the storage means;

Output means for outputting the determination result determined by the determination means;

The information recording apparatus according to any one of claims 1 to 3, further comprising:

[5] In an information recording method for overwriting and recording a series of video data captured from a moving object,

A detection step of detecting the behavior of the moving body;

A determination step of determining whether the detection result detected by the detection step is a dangerous behavior of the moving body;

Based on the determination result determined by the determination step, a specific step for identifying risk information that is a dangerous behavior of the moving object;

Based on the determination result, video data when the dangerous behavior is detected, An information recording method, comprising: a storage step of storing the danger information specified by the specifying step in a recording medium.

[6] An information recording program causing a computer to execute the information recording method according to claim 5.

[7] A computer-readable recording medium in which the information recording program according to claim 6 is recorded.