WO2008041339A1

WO2008041339A1 - Information recording device, information recording method, information recording program, and computer-readable recording medium

Info

Publication number: WO2008041339A1
Application number: PCT/JP2006/319883
Authority: WO
Inventors: Hiroaki Shibasaki
Original assignee: Pioneer Corporation
Priority date: 2006-10-04
Filing date: 2006-10-04
Publication date: 2008-04-10
Also published as: JPWO2008041339A1; JP5014349B2

Abstract

Provided is an information recording device (100) for overwriting and recording image information on those peripheral images of a plurality of movers, which are continuously sent from the movers. A receiving unit (101) receives such communication information from the movers as is concerned with a request of communications containing the identification information for identifying the movers. An identifying unit (102) identifies the movers with the identification information in the communication information received. A sending unit (103) sends communication allowing information to the mover identified. As a result that the communication allowing information was sent, on the other hand, the receiving unit (101) receives running state information containing behavior information on the behaviors of the mover sent from the mover and the image information on the peripheral images. With reference to the behavior information received, moreover, a deciding unit (104) decides whether or not the behaviors of the mover are dangerous. In case it is decided that the behaviors of the mover are dangerous, a storing unit (105) stores the image information overwritten and recorded.

Description

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 is mounted on a vehicle and has 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. In addition, recording information obtained by adding vehicle position information and time information to the image memory information is constantly recorded in the buffer memory.

[0003] When the impact detection sensor detects an impact of a predetermined value or more, the drive recorder stores recording information for a predetermined time from the detection time in the storage memory. In this way, when encountering an incident such as a escaping incident, the recorded information stored in the storage memory can be checked to identify the escaping vehicle (for example, see Patent Document 1 below).

[0004] Patent Document 1: Japanese Patent Application Laid-Open No. 2004-224105

Disclosure of the invention

Problems to be solved by the invention

[0005] However, the above-described conventional technology has a problem that the storage memory provided in each drive recorder may have insufficient capacity when a large number of impacts exceeding a predetermined value are detected. As an example. On the other hand, if almost no impact exceeding the specified value is detected, use almost all the storage memory capacity provided for each drive recorder. One example is the problem that hardware resources cannot be effectively used.

[0006] In addition, since the storage memory is mounted on the vehicle, it is necessary to make it a special specification in order to protect against vibration during running and to maintain robustness when detecting an impact. One example is the problem of V.

Means for solving the problem

In order to solve the above-described problems and achieve the object, the information recording apparatus according to the invention of claim 1 overwrites video information related to a peripheral image of the mobile body that is continuously transmitted by a plurality of mobile body forces. A communication information receiving means for receiving communication information related to a communication request including identification information for identifying the mobile object, and communication information received by the communication information receiving means; Authentication means for authenticating the mobile body using the identification information in the above, a transmission means for transmitting communication permission information permitting communication to the mobile body authenticated by the authentication means, and the transmission means As a result of the transmission of the communication permission information by the mobile body, the driving state information including the behavior information regarding the behavior of the mobile body and the video information regarding the surrounding video transmitted from the mobile body is received. A traveling state information receiving unit that determines whether the behavior of the moving body is dangerous with reference to the behavior information received by the traveling state information receiving unit. And storing means for storing the video information that has been overwritten when it is determined that the behavior of the moving object is dangerous.

[0008] Further, the information recording method according to the invention of claim 10 is the information recording method for overwriting and recording the video information related to the peripheral video of the moving body continuously transmitted from a plurality of moving bodies. A communication information reception step for receiving communication information related to a communication request including identification information for identifying the mobile device, and the identification information in the communication information received by the communication information reception step. An authentication process for authentication, a transmission step for transmitting communication permission information for permitting communication to the mobile body authenticated by the authentication step, and a result of transmission of the communication permission information by the transmission step as a result of the movement. A driving state information receiving step for receiving driving state information including behavior information relating to the behavior of the moving body and video information relating to surrounding images transmitted from the body; A determination step for determining whether or not the behavior of the moving body is dangerous with reference to the behavior information received by the traveling state information receiving step; and the behavior of the moving body is dangerous by the determination step. A storage step of storing the video information that is overwritten and recorded when it is determined that the video information is overwritten.

[0009] An information recording program according to claim 11 causes a computer to execute the information recording method according to claim 10.

[0010] Further, a computer-readable recording medium according to the invention of claim 12 records the information recording program according to claim 11.

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 diagram showing an outline of a system for a drive recorder that works on the present embodiment.

[FIG. 4] FIG. 4 is a block diagram illustrating an example of a hardware configuration of a server that is useful in the present embodiment.

FIG. 5 is a block diagram illustrating an example of a hardware configuration of an in-vehicle terminal according to the present embodiment.

[FIG. 6] FIG. 6 is a flowchart showing the contents of the processing of the server that works on the present embodiment. Explanation of symbols

[0012] 100 information recording apparatus

101 Receiver

102 Authentication section

103 Transmitter

104 Judgment part

105 Storage

106 Setting section BEST MODE FOR CARRYING OUT THE INVENTION

[0013] Exemplary 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 below in detail with reference to the accompanying drawings.

[0014] (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.

[0015] In FIG. 1, an information recording apparatus 100 that overwrites and records video information related to peripheral video of a moving body that is continuously transmitted by a moving body includes a receiving unit 101, an authenticating unit 102, and a transmitting unit 10.

3, a determination unit 104, a storage unit 105, and a setting unit 106.

[0016] Receiving section 101 receives communication information relating to a communication request including identification information for identifying the mobile body from the mobile body. The identification information may be, for example, an ID (IDentifier) number assigned to the mobile object. Further, the communication information may be information relating to the end of communication instead of a communication request, for example.

[0017] In addition, as a result of transmission of communication permission information by a transmission unit 103, which will be described later, the reception unit 101 includes a travel state including behavior information regarding the behavior of the mobile body to be transmitted, and video information regarding the surrounding video. Information may be received.

[0018] Authentication section 102 authenticates the mobile object using the identification information in the communication information received by receiving section 101. For example, authentication of a mobile unit may be performed by using the identification information transmitted from the mobile unit to authenticate whether or not the mobile unit that transmitted the communication information is a pre-registered mobile unit.

Transmitting section 103 transmits communication permission information for permitting communication to the mobile body authenticated by authentication section 102.

[0020] The determination unit 104 refers to the behavior information received by the reception unit 101, and determines whether or not the power of the moving body is dangerous. The behavior information is information including a detection value of a sensor that detects the behavior of the moving object, for example. Specifically, for example, the determination unit 104 compares the detection value of the sensor in the behavior information received by the reception unit 101 with a threshold value indicating the dangerous behavior of the moving object. Therefore, it is also possible to determine whether the behavior of the moving object is dangerous.

The storage unit 105 overwrites and records the video information related to the peripheral video received by the reception unit 101 in the overwrite recording area. The whole or a part of the driving state information including the behavior information related to the behavior of the moving object and the video information related to the surrounding video may be overwritten.

[0023] Further, when the determination unit 104 determines that the behavior of the moving object is dangerous, the storage unit 105 stores the video information that is overwritten. Specifically, for example, the storage unit 105 may store the video information and the identification information of the mobile body that is the transmission source of the video information in association with each other. Further, the storage unit 105 may store the behavior information and the video information in association with the behavior information of the moving object determined to be dangerous!

[0024] Further, when the determination unit 104 determines that the behavior of the moving object is dangerous, the storage unit 105 records the recording area set by the setting unit 106, which will be described later, in the overwrite recording area. The video information may be stored in a storage area.

[0025] Further, when the communication of the video information transmitted from the mobile body is interrupted, the storage unit 105 overwrites the video information recorded in the overwrite recording area with respect to the recording area set by the setting unit 106 described later. May be stored in the storage area. As a result, it is possible to save video information in the event that the communication function is damaged due to an accident and communication is interrupted without sending the behavior information at that time. In addition, when it can be determined that the communication is simply interrupted due to communication circumstances, such as when communication is restored within a predetermined time, the video information stored in the storage area may be deleted and overwriting recording of the video information may be resumed. .

[0026] Further, the storage unit 105 may archive the video information stored in the storage area when the reception unit 101 receives the communication information related to the end of communication.

[0027] The setting unit 106 sets a recording area including an overwrite recording area to be overwritten and a storage area to be saved, based on the video information to which the mobile strength authenticated by the authentication unit 102 is transmitted.

[0028] (Contents of processing of information recording apparatus)

Next, FIG. 2 is used to explain the processing contents of the information recording apparatus 100 according to the present embodiment. And explain. 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 receiving unit 101 determines whether or not a communication request has been accepted (step S 201).

[0029] In step S201, after waiting for a communication request to be accepted (step S201: Yes), authentication unit 102 obtains identification information included in the communication request accepted in step S201. To authenticate the moving object (step S202).

[0030] Next, the setting unit 106 sets a recording area composed of an overwrite recording area to be overwritten and a storage area to be saved, based on the video information to which the moving physical force authenticated in step S202 is transmitted (step S102). S 203).

[0031] Subsequently, the transmission unit 103 transmits communication permission information for permitting communication to the mobile body authenticated in step S202 (step S204). In the flow chart of FIG. 2, the communication permission information is transmitted after setting the recording area in step S 203 and step S 204, but the order is not limited. Specifically, for example, the recording area may be set after transmitting the communication permission information.

[0032] Next, as a result of the transmission of the communication permission information in step S204 by the transmission unit 103, the driving state information including behavior information relating to the behavior of the moving body transmitted and the video information relating to the surrounding image is received. (Step S205).

[0033] Then, the determination unit 104 determines the behavior of the moving body based on the traveling state information received in step S205 (step S206). For example, the behavior of a moving object is determined by comparing the detected value of the sensor in the behavior information received in step S205 with a threshold value indicating the dangerous behavior of the moving object. You can also decide whether or not it is!

[0034] Next, when the storage unit 105 determines that the behavior of the moving object is dangerous in step S206, the recording area set in step S203 is overwritten and recorded in the overwriting recording area. Information is stored in the storage area (step S207).

[0035] Then, the receiving unit 101 determines whether or not the end of communication has been received. If received (step S208: Yes), the video information stored in the storage area is archived (step S209). Then, a series of processing is completed. If the end of communication is not accepted in step S208 (step S208: No), the process returns to step S205 and the process is repeated.

[0037] It should be noted that when the communication of the video information transmitted from the mobile unit is interrupted instead of determining the behavior of the mobile unit in step S206, which is not described in the flowchart of FIG. 2, it is overwritten and recorded in the overwrite recording area. ! It is also possible to save the video information to be stored in the storage area. By adopting such a configuration, even when an abnormality other than dangerous behavior occurs in the moving body, video information can be stored appropriately.

[0038] Further, when communication is recovered within a predetermined time after communication is interrupted, or when behavior is interrupted when communication is interrupted after communication is recovered, the behavior information is obtained. When it can be determined that the communication is simply interrupted due to communication circumstances, such as when it is determined that there is no video, the video information stored in the storage area may be deleted and overwriting recording of the video information may be resumed. By adopting such a configuration, overwriting recording can be continued if there is no abnormality in the moving body just by passing through a location where communication is difficult.

[0039] Further, when communication is restored, the video information and behavior information during the interruption of communication are requested and acquired, and the necessary video information is stored by determining the behavior information. Also good.

[0040] In addition, when communication is restored, first, behavior information during communication interruption is requested and acquired, and the behavior information is determined to determine that the behavior of the moving object is dangerous. In this case, the video information before and after that may be requested, acquired, and stored.

[0041] As described above, according to the present embodiment, the driving state information is received by mobile physical strength communication to determine the behavior, and the video information around the mobile body when the behavior of the mobile body is dangerous. Can be saved. Therefore, appropriate video information can be stored without depending on the specifications and conditions of the memory mounted on the mobile unit.

[0042] Also, according to the present embodiment, a recording area is set for a mobile body that has requested communication among a plurality of mobile bodies, video information is overwritten and stored, and communication ends. In this configuration, the setting of the recording area is canceled. Therefore, the video information of multiple mobile units can be managed centrally and the recording area can be shared with multiple mobile units. Thus, the recording area can be effectively used.

Example

[0043] Examples of the present invention will be described below. In the present embodiment, for example, a server that receives the G value output from the G sensor that detects video information and impact from an in-vehicle terminal mounted on a moving body such as a vehicle (including a four-wheeled vehicle and a two-wheeled vehicle) An example when the information recording apparatus of the present invention is implemented will be described.

[0044] (Overview of drive recorder system)

With reference to FIG. 3, an outline of a drive recorder system that is useful in this embodiment will be described. FIG. 3 is an explanatory diagram showing an outline of a drive recorder system according to this embodiment.

In FIG. 3, a drive recorder system 300 includes a server 301 and in-vehicle terminals 302 (302a, 302b, 302c) mounted on a plurality of vehicles.

The server 301 has a drive recorder function based on video information and G values transmitted from the in-vehicle terminals 302 (302a, 302b, 302c). Specifically, for example, the server 301 records video information in the storage areas 310 (310a, 310b, 310c) set in the recording medium for each in-vehicle terminal 302 (302a, 302b, 302c).

[0047] The force server 301 described in detail with reference to FIG. 6 receives a communication request including a transmission permission request and vehicle identification information from the in-vehicle terminal 302 (302a, 302b, 302c), and receives the received vehicle identification. Using the information, it is authenticated whether or not the vehicle on which the in-vehicle terminal 302 (302a, 302b, 302c) that transmitted the communication request is a registered vehicle that has been registered in advance.

Next, when the vehicle equipped with the in-vehicle terminal 302 (302a, 302b, 302c) that transmitted the communication request is authenticated, the server 301 sends a communication permission notification for permitting communication to the in-vehicle terminal 30 2 (302a , 302b, 302c) [Send this. Next, storage area 310 (310a, 310b, 310c) that records video information and G values transmitted from the vehicle equipped with in-vehicle terminal 302 (302 a, 302b, 302c) Set.

[0049] Further, the capacity of the storage area 310 (310a, 310b, 310c) may be, for example, a predetermined capacity, or the past storage amount in the in-vehicle terminal 302 (302a, 302b, 302c) mounted in each vehicle. You can set it based on your history. [0050] The storage area 310 (310a, 310b, 310c) may be configured with, for example, an overwriting recording area for overwriting recording, and a storage area when a trigger is detected. More specifically, for example, in the setting of the storage area 310 (310a, 310b, 310c), when a communication request is received from the in-vehicle terminal 302a, the vehicle in which the in-vehicle terminal 302a is installed is authenticated and a communication permission notification is issued. In this configuration, the storage area 310a is set while being transmitted to the in-vehicle terminal 302a.

[0051] The setting of the storage area 310 (310a, 310b, 310c) may be changed according to the stored capacity, for example. Specifically, for example, the setting of the storage area 310 (310a, 310b, 310c) may be configured such that once the predetermined ratio P is stored, the allocation is changed until the storage amount is reduced to the predetermined ratio Q. More specifically, for example, the setting of the storage area 310 (310a, 310b, 310c) is the initial allocation area when the capacity of 100MB (megabytes) is initially allocated with P being 80% and Q being 50%. However, if the storage capacity reaches 80MB, the storage area 310 (310a, 310b, 310c) may be increased to 160MB so that 80MB power is 50%.

[0052] In addition, in the storage area 310 (310a, 310b, 310c), for example, instead of setting for each vehicle, the vacant area force of the recording medium is sequentially recorded, and the recorded position and the vehicle are recorded. It may be managed or recorded by adding vehicle identification information to the video information.

[0053] Then, the sano 301 overwrites and records the video information transmitted from each in-vehicle terminal 302 (302a, 302b, 302c) in the storage area 310 (310a, 310b, 310c), and each in-vehicle terminal. The G value transmitted from 302 (302a, 302b, 302c) is constantly monitored.

[0054] The G value monitor detects, for example, when the received G value is greater than or equal to a specified value or when transmission is interrupted, and before and after the time when the trigger is detected (transmission is interrupted). Store video information for a predetermined time. In this way, by monitoring the G value, it is possible to store video information when the vehicle receives a G value that exceeds the specified value or encounters an accident where transmission is interrupted.

[0055] Here, after transmission is interrupted, when it is determined that a communication error has occurred after a recovery in a predetermined time, the stored video information may be deleted and overwrite recording may be continued. In other words, if the cause of the interruption of transmission is passing through a point where communication is difficult due to an accident, It is a configuration without storing image information.

[0056] When the server 301 detects a trigger, the server 301 sends a trigger detection notification to the in-vehicle terminal 302.

(302a, 302b, 302c) may be urged to check whether contact has been made due to an accident or the like. For example, the detection notifications may be collectively performed after a transmission end notification described later, and whether or not to transmit immediately by determining the possibility of contact based on the size of the G value and the image. It is good also as judging. Further, the stored video information may be transmitted to the in-vehicle terminal 302 (302a, 302b, 302c) together with the detection notification.

As described above, by performing the detection notification, the vehicle user can accurately recognize an accident or a dangerous driving and can keep safe driving. Also, video information that is not an accident may be deleted as unnecessary information.

[0058] Then, the Sano 301 receives the communication end notification including the transmission end notification and the vehicle identification information from the in-vehicle terminal 302 (302a, 302b, 302c), and performs communication using the received vehicle identification information. It is authenticated whether or not the vehicle power registration vehicle is equipped with the in-vehicle terminal 302 (302a, 302b, 302c) that has transmitted the end notification. If authenticated, an in-vehicle terminal 302 (302a, 302b, 302c) [this can be configured to send a reply! / ヽ.

[0059] When the vehicle on which the in-vehicle terminal 302 (302a, 302b, 302c) that transmitted the communication end notification is authenticated, the server 301 stores the stored video information in the archive. The power force eve is, for example, a place where video information saved in the past is stored, and may be on the hard disk of the server 301 or a recording medium such as an optical disk. In addition, the power force eve may be divided into discs or areas for each vehicle or user, or the space of the power force eve and the region force are sequentially recorded, the recorded position and the vehicle. It is also possible to record the video information with vehicle identification information added.

[0060] After storing the video information in the archive, the server 301 deletes the video information stored on the hard disk and stores the storage area 310 (310a, 310b) set in the in-vehicle terminal 302 (302a, 302b, 302c). , 310c). The released storage area 310 (310a, 310b, 310c) will be damaged by the in-vehicle terminal 302 (302a, 302b, 302c) that next requested the communication. With such a configuration, video information of a plurality of vehicles can be centrally managed and a plurality of vehicles can share the storage area 310 (310a, 310b, 310c). Leading to effective use of software resources.

[0062] Note that the video information stored in the archive may be deleted after a predetermined storage period has elapsed or after the accident verification or insurance process is completed.

The in-vehicle terminals 302 (302a, 302b, 302c) transmit a communication request including a transmission permission request and the vehicle identification information of the own vehicle to the server 301 when the engine of each vehicle is started. For example, instead of detecting the start of the engine, the communication request may be transmitted by detecting the release of the parking brake or detecting the start of traveling based on the traveling speed or the like.

[0064] Then, when the communication request is received from the server 301 as a result of transmitting the communication request to the in-vehicle terminal 302 (302a, 302b, 302c), the camera is activated to display an image in a predetermined direction. Continue shooting. Further, the in-vehicle terminal 302 (302a, 302b, 302c) continues to acquire the G value by the G sensor in accordance with the imaging of the image in the predetermined direction, and continues to acquire the current time and the position information of the current time.

[0065] Then, the in-vehicle terminal 302 (302a, 302b, 302c) transmits video information, G value, vehicle identification information, position information, time information, etc. to the server 301 in real time by always-on wireless communication or the like. .

[0066] The in-vehicle terminal 302 (302a, 302b, 302c) may be configured to include a buffer memory to cover a communication time lag. Specifically, for example, the use of the noffer memory is a configuration in which when the server 301 detects a communication error while receiving video information, a re-transmission request is made to the in-vehicle terminal 302 (302a, 302b, 302c). The video information matching the retransmission request may be retransmitted from the video information recorded in the buffer memory of the in-vehicle terminal 302 (302a, 302b, 302c). In that case, the capacity of the notifier memory is the capacity that can record the video information of the time required for detecting the communication error by the Sano 301 and transmitting the retransmission request and for the retransmission by the in-vehicle terminal 302 (302a, 302b, 302c). To do.

[0067] Further, in FIG. 3, the power described for the constant communication may be configured such that communication is performed intermittently by using the above-described kaffa memory. Specifically, for example, intermittent communication is predetermined. It is also possible to record video information and G values for the time in a buffer memory and send them to the server 301 collectively.

In-vehicle terminal 302 (302a, 302b, 302c) transmits a communication end notification including a transmission end notification and vehicle identification information to server 301 when the engine of the vehicle is stopped. For example, instead of detecting stoppage of the engine, send end of transmission notification by detecting that the parking brake has been applied during parking or detecting the end of driving by driving speed.

[0069] When the communication request and the communication end notification are transmitted by detecting the parking brake or the traveling speed, the in-vehicle terminal 302 (302a, 302b, 302c) A communication request and a communication end notification are transmitted.

[0070] When a communication request and a communication end notification are transmitted by detecting engine start and stop, the vehicle-mounted terminal 302 (302a, 302b, 302c) starts the engine even when the vehicle is parked or stopped. If it is in the middle, video information or the like is transmitted to the server 301.

[0071] Furthermore, in addition to starting and stopping the engine, a parking brake, a traveling speed, and the like may be detected, and transmission pause / resume notification such as video information may be transmitted to the server 301. In this case, when receiving the transmission suspension, the server 301 suspends the overwrite recording while holding the storage area 310 (310a, 310b, 310c) allocated to the in-vehicle terminal 302 (302a, 302b, 302c). Also good. And, if the communication is interrupted until a restart notification is received, the video information may not be saved as a trigger! /.

[0072] (Hardware configuration of server 301)

Here, the hardware configuration of the server 301 that is useful in the present embodiment will be described with reference to FIG. FIG. 4 is a block diagram illustrating an example of a hardware configuration of a server that is useful in the present embodiment.

In FIG. 4, a server 301 includes a CPU 401, a ROM 402, a RAM 403, a magnetic disk drive 404, a magnetic disk 405, an optical disk drive 406, an optical disk 407, an audio IZF (interface) 408, A speaker 409, an input device 411, a video IZF4 12, a display 413, and a communication IZF 414 are provided. The components 401 to 41 4 are connected by a bus 420 !. First, the CPU 401 governs overall control of the server 301. The ROM 402 records various programs such as a boot program, an authentication program, and an information recording program. The RAM 403 is used as a work area for the CPU 401.

[0075] The authentication program causes a vehicle equipped with the in-vehicle terminal 302 to be authenticated. Specifically, for example, the authentication authenticates whether the vehicle identification information transmitted from the in-vehicle terminal 302 is a registered vehicle registered in advance.

[0076] When the trigger is detected by the G value transmitted from the in-vehicle terminal 302, the information recording program switches the recording destination of the video information of the vehicle that has been always overwritten and recorded. The recording destination of the video information may have, for example, an overwrite recording area for always overwriting and a storage recording area for storing the video information when a trigger is detected. It is good also as a structure provided with a recording medium for a medium and a preservation | save. The overwrite recording area and the storage recording area may be set for each authenticated in-vehicle terminal 302.

[0077] The trigger is an output value force transmitted from the in-vehicle terminal 302, for example, an output of a sensor that serves as a trigger for storing a drive recorder image captured by the camera in the in-vehicle terminal 302. The configuration may be such that a trigger is detected when the output value exceeds the threshold value determined by the CPU 401. This threshold value may be a value that can determine, for example, the occurrence of a contact accident or dangerous driving.

More specifically, for example, the trigger is detected when an output force of the G sensor that detects an impact on the vehicle on which the in-vehicle terminal 302 is mounted exceeds a threshold value determined by the CPU 401. . Also, trigger information may be recorded along with the drive recorder image.

[0079] The trigger may be, for example, a case where communication with the in-vehicle terminal 302 is interrupted. In other words, the information recording program can store video information in the event of an accident where transmission is interrupted. In addition, after transmission is interrupted, if it is determined that a communication error has occurred after a predetermined time, the stored video information can be deleted and overwriting can be continued.

[0080] The magnetic disk drive 404 is connected to the magnetic disk 405 according to the control of the CPU 401. Controls reading and writing of data to be written. 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 data reading / writing to the optical disk 407 in accordance with 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.

[0082] As an example of information recorded on the magnetic disk 405 and the optical disk 407, there is information on a registered vehicle that is registered in advance. The server 301 authenticates the vehicle on which the in-vehicle terminal 302 is mounted based on the information on the registered vehicle.

The audio IZF 408 is connected to an audio output speaker 409, and audio is output from the speaker 409.

[0084] The input device 411 includes a remote controller, a keyboard, a mouse, a touch panel, and the like that are provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like.

Further, the video IZF 412 is connected to the display 413. Specifically, the video I / F 412 includes, 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 a graphic controller. It is configured by a control IC or the like that controls the display 413 based on the output image data.

[0086] 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.

Further, the communication I / F 414 is connected to a network via radio and functions as an interface between the server 301 and the CPU 401. The communication I / F 414 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 401.

Note that the receiving unit 101, the authenticating unit 102, and the transmitting unit 1 included in the information recording apparatus 100 illustrated in FIG. 03, the determination unit 104, the storage unit 105, and the setting unit 106, the CPU 401 uses the programs and data recorded in the ROM 402, RAM 403, magnetic disk 405, optical disk 407, etc. in the server 301 shown in FIG. The function is realized by executing the program and controlling each part in the server 301.

That is, the server 301 according to the present embodiment executes the program recorded in the ROM 402 as a recording medium in the server 301 to perform the functions provided in the information recording apparatus 100 shown in FIG. It can be executed according to the procedure shown in 2.

[0090] (Hardware configuration of in-vehicle terminal 302)

Next, with reference to FIG. 5, the hardware configuration of the in-vehicle terminal 302 that is useful in the present embodiment will be described. FIG. 5 is a block diagram showing an example of the hardware configuration of the in-vehicle terminal that works on the present embodiment.

In FIG. 5, an in-vehicle terminal 302 is mounted on a moving body such as a vehicle, and includes a CPU 501, a ROM 502, a RAM 503, a magnetic disk drive 504, a magnetic disk 505, an optical disk drive 506, Optical disk 507, audio I / F (interface) 508, speaker 509, microphone 510, human power denois 511, video I / F 512, display 513, communication IZF 514, GPS unit 515, and various sensors 516 And a camera 517. The components 501 to 517 are connected by a bus 520, respectively.

First, the CPU 501 governs overall control of the in-vehicle terminal 302. The ROM 502 records various programs such as a boot program. The RAM 503 is used as a work area for the CPU 501.

The magnetic disk drive 504 controls reading and writing of data with respect to the magnetic disk 505 according to the control of the CPU 501. The magnetic disk 505 records data written under the control of the magnetic disk drive 504. As the magnetic disk 505, for example, HD (node disk) or FD (flexible disk) can be used.

In addition, the optical disk drive 506 controls reading and writing of data with respect to the optical disk 507 according to the control of the CPU 501. The optical disc 507 is a detachable recording medium from which data is read according to the control of the optical disc drive 506. The optical disk 507 can use a writable recording medium. Also this detachable The recording medium may be a power MO of the optical disc 507, a memory card, or the like.

The audio IZF 508 is connected to a speaker 509 for audio output and a microphone 510 for audio input. Audio is output from the speaker 509, and the audio received by the microphone 510 is AZD converted in the audio IZF 508. Note that the sound input from the microphone 510 can be transmitted to the server 301 together with video information described later as sound data.

[0096] Examples of the input device 511 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, a keyboard, a mouse, a touch panel, and the like.

In addition, video IZF 512 is connected to display 513 and camera 517. Specifically, the video iZF 512 includes, for example, a graphic controller that controls the entire display 513, a buffer memory such as VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. It is composed of a control IC that controls display of the display 513 based on the output image data.

[0098] Display 513 displays an icon, a cursor, a menu, a window, or various data such as characters and images. As this display 513, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.

[0099] The camera 517 captures an image inside or outside the vehicle. The image can be either a still image or a moving image. For example, the camera 517 captures the behavior of a passenger inside the vehicle, and transmits the captured image information to the server 301 via the image I / F 512 and the communication I / F 514. To do. In addition, the camera 517 captures a situation outside the vehicle, and transmits the captured video information to the server 301 via the video I / F 512 and the communication I / F 514. In addition, the video information transmitted to the server 301 is overwritten and saved as a drive recorder image.

[0100] Further, the communication IZF 514 is connected to a network via radio, and functions as an interface between the in-vehicle terminal 302 and the CPU 501. The communication I / F 514 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 501.

[0101] The GPS unit 515 uses a received wave from a GPS satellite and an output value from various sensors 516 (for example, an angular velocity sensor, an acceleration sensor, a tire rotation number, etc.) described later. The information indicating the current location of the vehicle is calculated. The information indicating the current location is information for specifying one point on the map information such as latitude-longitude and altitude.

[0102] Various sensors 516 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 515 and measurement of changes in speed and direction. It is done. Specifically, for example, the various sensors 516 output an odometer, a speed change amount, an azimuth change amount, and the like. Based on this output value, it is possible to analyze dynamics such as sudden braking and sudden handling.

[0103] The various sensors 516 also 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. Further, the output values of the various sensors 516 are transmitted to the server 301 together with the video information via the communication IZF 514.

[0104] (Processing contents of server 301)

Here, the contents of the processing of the server 301 that are useful in the present embodiment will be described with reference to FIG. FIG. 6 is a flowchart showing the contents of the processing of the server that works on the present embodiment. In the flowchart of FIG. 6, first, it is determined by the communication IZF 414 whether or not a communication request has been received from the in-vehicle terminal 302 (step S601). The communication request is, for example, information including a transmission permission request from the in-vehicle terminal 302 and vehicle identification information of the vehicle on which the in-vehicle terminal 302 is mounted.

[0105] In step S601, after waiting for the reception of the communication request, if received (step S601: Yes), the CPU 401 authenticates the vehicle equipped with the in-vehicle terminal 302 that transmitted the communication request. Then, the storage area 310 is allocated to each in-vehicle terminal 302 (step S602), and a communication permission notification for permitting communication to the in-vehicle terminal 302 is transmitted by the communication IZF 414 (step S603).

[0106] Next, as a result of transmitting the communication permission notification in step S603 by the communication IZF 414, the video information and the G value transmitted from the in-vehicle terminal 302 are received (step S604).

[0107] Then, depending on the recording medium such as the magnetic disk 405 or the optical disk 407, step S604 is performed. The video information received at step S605 is overwritten and recorded (step S605). For example, the overwriting recording may be performed by using the overwriting recording area of the storage area 310 allocated in step S602.

[0108] Next, it is determined whether or not a communication end notification including a transmission end notification and vehicle identification information is received from the in-vehicle terminal 302 by the communication IZF 414 (step S606).

[0109] If a communication end notification is received in step S606 (step S606: Yes), the CPU 401 saves the video information stored in the storage area of the storage area 310 in a live drive (step S607). .

[0110] After the video information is stored in the archive, the CPU 401 deletes the video information stored in the storage area and cancels the allocation of the storage area 310 set for the in-vehicle terminal 302 (step S608), a series of processing ends.

[0111] Also, in step S606, if no communication end notification is received (step S606: No), it is determined whether or not a trigger is detected based on the G value received in step S604. (Step S609). For example, the trigger can be detected in half by comparing the G value with the specified value! /.

[0112] If a trigger is detected in step S609 (step S609: Yes), the CPU 401 stores the video information before and after the trigger is detected in the storage area of the storage area 310 (step S610). The video information before and after the image may be, for example, video information of a time before and after a predetermined time when the trigger is detected so that a video that can identify the trigger factor is included.

[0113] If no trigger is detected in step S609 (step S609: No), the process returns to step S604 and is repeated.

[0114] Then, the communication IZF 414 transmits a trigger detection notification to the server 301 (step S611), and returns to step S604 to repeat the processing.

[0115] In addition, instead of using a G value that is greater than or equal to the specified value as a trigger in step S609, which is not described in the flowchart of FIG. 6, a case where transmission is interrupted may be detected as a trigger. In that case, after the transmission is interrupted, if it is determined that a communication error has occurred after a predetermined time, the stored video information may be deleted and the overwriting recording may be continued. In other words, the video information does not have to be stored when the transmission is interrupted due to the passage of a difficult communication point due to an accident.

[0116] As described above, according to the present embodiment, by providing the server with a drive recorder function, video information of a plurality of vehicles can be obtained by using a low-cost recording medium that has no special specification such as vibration countermeasures. Can be saved. In addition, since it is easy to add recording media such as hard disks in the server, the storage capacity is insufficient and video information at the time of the accident can be recorded without leaking. Furthermore, since the server does not break even if the vehicle is in an accident, the video information can be reliably stored.

[0117] Further, according to the present embodiment, since the video information is not stored in the in-vehicle terminal of the vehicle used by each user, the video information is prevented from being tampered with by the user. Can do.

[0118] Furthermore, according to the present embodiment, video information of a plurality of in-vehicle terminals can be managed in an integrated manner. In other words, a plurality of in-vehicle terminals can share one server. In addition, since the user of the vehicle transmits the video information to the server, the vehicle user can recognize that it is managed by the server and can drive safely.

[0119] Further, according to the present embodiment, since the storage area is allocated only while the vehicle is traveling, the hardware resources that do not wastefully use the storage area while the vehicle is traveling are not used. Effective use can be achieved.

[0120] Also, since there is room in the storage area for storing video information for each vehicle, if the specified value that triggers is set low, accident encounters can be detected reliably and video information on accidents can be stored. Can be saved.

[0121] Furthermore, if a server according to the present embodiment is installed in a carrier and the in-vehicle device of this embodiment is installed in a vehicle used by the carrier, the video information is managed centrally. Therefore, it is possible to quickly and appropriately respond to accidents without investigating the drive recorders of individual vehicles. In addition, it is possible to eliminate omissions of accidents in each vehicle and to provide appropriate driving guidance to each driver.

[0122] Further, if the video information is managed by area by the server, the video information of the vehicles that have collided can be specified, and the accident processing can be performed promptly and appropriately. 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 recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a 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] In the information recording apparatus for overwriting and recording the video information related to the peripheral video of the mobile body, which is transmitted continuously.

Communication information receiving means for receiving communication information relating to a communication request including identification information for identifying the mobile body from the mobile body;

Authentication means for authenticating the mobile object using the identification information in the communication information received by the communication information receiving means;

Transmitting means for transmitting communication permission information for permitting communication to the mobile body authenticated by the authentication means;

As a result of the transmission of communication permission information by the transmission means, running state information receiving means for receiving running state information including behavior information relating to the behavior of the moving body and video information relating to surrounding video transmitted from the moving body;

A determination unit that refers to the behavior information received by the traveling state information reception unit and determines whether the behavior of the moving body is dangerous;

If the determination means determines that the behavior of the moving body is dangerous, the storage means for storing the video information is overwritten and recorded!

An information recording apparatus comprising:

[2] The storage means includes

2. The information recording apparatus according to claim 1, wherein the video information and the identification information of the mobile body that is the transmission source of the video information are stored in association with each other.

[3] The storage means includes

2. The information recording apparatus according to claim 1, wherein the behavior information when the behavior of the moving body is determined to be dangerous and the video information are stored in association with each other.

[4] The apparatus further comprises setting means for setting a recording area consisting of an overwrite recording area to be overwritten and a storage area to be saved, according to the video information transmitted by the mobile strength authenticated by the authentication means,

The storage means includes 2. The video information that is overwritten in the overwrite recording area is stored in the storage area when the determination means determines that the behavior of the moving body is dangerous. The information recording device described.

[5] The storage means includes

When communication of the video information transmitted from the mobile body is interrupted, it is overwritten and recorded in the overwriting recording area! 5. The information recording apparatus according to claim 4, wherein the video information is stored in the storage area, and when the communication is restored, overwriting recording of the video information is resumed.

[6] The storage means includes

When communication of the video information transmitted from the mobile body is interrupted, it is overwritten and recorded in the overwrite recording area, and the video information is stored in the storage area and communication is restored within a predetermined time. 5. The information recording apparatus according to claim 4, wherein the video information stored in the storage area is erased and overwriting recording of the video information is resumed.

[7] The communication information receiving means includes

Receiving communication information about the end of communication from the mobile,

The setting means includes

5. The information recording apparatus according to claim 4, wherein when the communication information regarding the end of communication is received by the communication information receiving means, the setting of the recording area is canceled.

[8] The storage means includes

5. The information recording apparatus according to claim 4, wherein when the communication information related to the end of communication is received by the communication information receiving means, the video information stored in the storage area is archived.

[9] The behavior information is

Including a detection value of a sensor for detecting the behavior of the moving object,

The determination means includes

By comparing the detected value in the behavior information received by the traveling state information receiving means with a threshold value indicating the dangerous behavior of the moving object, 2. The information recording apparatus according to claim 1, wherein it is determined whether or not the force is dangerous.

[10] Multiple mobile strengths An information recording method that overwrites and records video information related to the surrounding video of the mobile body that is continuously transmitted!

A communication information receiving step for receiving communication information relating to a communication request including identification information for identifying the mobile body from the mobile body;

An authentication step of authenticating the mobile object using the identification information in the communication information received by the communication information receiving step;

A transmission step of transmitting communication permission information for permitting communication to the mobile body authenticated by the authentication step;

As a result of transmission of communication permission information in the transmission step, a driving state information receiving step of receiving driving state information including behavior information related to the behavior of the moving body and video information related to surrounding video transmitted from the moving body;

A determination step of determining whether or not the behavior of the moving object is dangerous with reference to the behavior information received by the driving state information reception step;

A storage step of storing the video information that is overwritten and recorded when the behavior of the moving object is determined to be dangerous by the determination step;

An information recording method comprising:

[11] An information recording program causing a computer to execute the information recording method according to claim 10.

[12] A computer-readable recording medium in which the information recording program according to claim 11 is recorded.