JP2016119602A - Drive recorder and drive recorder system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drive recorder and a drive recorder system that are capable of making a high-quality moving images stored in a storage part as well as capable of enhancing reliability more than ever to externally transmit moving images for confirming a driving state of a vehicle.SOLUTION: A drive recorder to be mounted on a vehicle generates low-quality moving images that are moving images captured by an on-vehicle camera and whose image quality is lowered, and transmits the low-quality moving images to outside of the drive recorder by a communication part (S73 and S74), and also makes high-quality moving images that are moving images captured by the on-vehicle camera and whose image quality is higher than that of the low-quality moving images stored in a storage part.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a drive recorder and a drive recorder system for storing a moving image shot by a shooting unit mounted on a vehicle.

  2. Description of the Related Art Conventionally, a drive recorder that stores moving images shot by a shooting unit mounted on a vehicle includes a storage unit that stores data and a communication unit that transmits data to a server outside the drive recorder. It is known that the stored still image and moving image are stored in the storage unit, and after the still image is transmitted to the server by the communication unit, the moving image is transmitted to the server by the communication unit (see, for example, Patent Document 1). .

JP 2009-032143 A

  However, in the conventional drive recorder, when the moving image shot by the shooting unit is transmitted to the server, since the data to be transmitted is a moving image, the size of the data is large. There is a problem that it is difficult to send to the server. In particular, when a conventional drive recorder is installed in each of a plurality of vehicles, when the server simultaneously receives the videos transmitted from the drive recorders installed in each of the plurality of vehicles, the server simultaneously receives them. Since the total size of the data to be processed becomes very large, there is a problem that it is more difficult to transmit the moving image from the drive recorder to the server.

  In addition, in the conventional drive recorder, when transmitting a still image captured by the imaging unit to the server, the data to be transmitted is a still image and the size of the data is small. There is a problem that it is difficult to confirm.

  Therefore, the present invention can store a high-quality moving image in the storage unit, and can improve reliability of transmitting a moving image for confirming the driving state of the vehicle to the outside. An object is to provide a recorder system.

  The drive recorder of the present invention is a drive recorder mounted on a vehicle, and is shot by a storage unit that stores data, a communication unit that transmits data to the outside of the drive recorder, and a shooting unit mounted on the vehicle. A low-quality moving image generating means for generating a low-quality moving image having a reduced image quality, and a high-quality moving image having a higher image quality than the low-quality moving image, the moving image being shot by the photographing unit High-quality moving image storage means to be stored in the unit, and data transmission means for transmitting the low-quality moving image generated by the low-quality moving image generation means to the outside of the drive recorder by the communication unit.

  With this configuration, the drive recorder of the present invention transmits a low-quality moving image whose data size is smaller than that of the high-quality moving image stored in the storage unit to the outside, so that the high-quality moving image can be stored in the storage unit, The reliability of transmitting a moving image for confirming the driving state of the vehicle to the outside can be improved as compared with the related art.

  In the drive recorder of the present invention, the low-quality moving image generation means may generate the low-quality moving image having a lower frame rate than the high-quality moving image.

  With this configuration, the drive recorder of the present invention can further reduce the size of the data of the low-quality moving image to the size of the data of the high-quality moving image, so that the moving image for confirming the driving situation of the vehicle is transmitted to the outside. Reliability can be further improved.

  In addition, the drive recorder of the present invention includes a driving situation determination unit that determines a driving situation of the vehicle, and the data transmission unit is configured to perform the low operation when the driving situation determination unit determines that the driving situation is a specific driving situation. You may send a quality video.

  With this configuration, the drive recorder of the present invention can appropriately transmit a low-quality moving image in which the driving state of the vehicle should be confirmed to the outside, so that the driving state of the vehicle can be confirmed by the low-quality moving image transmitted to the outside. Can be facilitated.

  In the drive recorder of the present invention, the photographing unit may photograph not only a moving image outside the vehicle but also a moving image of the driver of the vehicle.

  With this configuration, the drive recorder of the present invention transmits not only the video outside the vehicle but also the video of the driver of the vehicle to the outside, thereby facilitating the confirmation of the driving status of the vehicle by the video of the driver of the vehicle. be able to.

  Further, in the drive recorder of the present invention, the low-quality moving image generation means is not based on the high-quality moving image stored in the storage unit, but based on the moving image shot by the shooting unit. May be generated.

  With this configuration, the drive recorder of the present invention does not need to read the high-quality moving image from the storage unit and convert the image quality in order to generate the low-quality moving image. Compared to the case of generating a low-quality moving image, it can be realized with a low-functional configuration. Therefore, the drive recorder of the present invention can reduce the manufacturing cost and the apparatus size.

  The drive recorder according to the present invention may further include a low-quality moving image storage unit that stores the low-quality moving image generated by the low-quality moving image generation unit in the storage unit.

  With this configuration, the drive recorder of the present invention stores not only high-quality moving images but also low-quality moving images in the storage unit, so that the low-quality moving images can be used as a backup of high-quality moving images.

  In the drive recorder of the present invention, the data transmission unit may transmit the low-quality moving image to the outside of the vehicle by short-range wireless communication.

  With this configuration, since the drive recorder of the present invention does not need to use a mobile communication system, it is possible to prevent the usage fee of the mobile communication system from being required as a running cost.

  The drive recorder of the present invention further includes power control means for controlling the power of the drive recorder, and the power control means should be transmitted by the data transmission means when the accessory power of the vehicle is turned off. When the low-quality moving image has not yet been transmitted, it may wait for the drive recorder to be turned off.

  With this configuration, the drive recorder of the present invention can immediately transmit a low-quality moving image due to communication congestion, such as when a low-quality moving image is simultaneously transmitted from a drive recorder mounted on each of a plurality of vehicles. If not completed, even if the accessory power of the vehicle is turned off before the transmission of the low-quality moving image is completed, the drive recorder itself is not turned off, so that the transmission of the low-quality moving image can be completed. Therefore, the drive recorder of the present invention can improve the reliability of transmitting low-quality moving images to the outside.

  The drive recorder system of the present invention includes the above-described drive recorder, and a portable device that executes a low-quality moving image transmission program for transmitting the low-quality moving image to the outside of the vehicle, and the low-quality moving image transmission program includes: Mobile device side receiving means for receiving the low quality moving image transmitted by the data transmitting means in the vehicle by a method other than a mobile communication system, and the low quality moving image received by the portable device side receiving means The mobile device is caused to function as mobile device-side transmission means for transmitting to the outside of the vehicle by a mobile communication system.

  With this configuration, the drive recorder system of the present invention needs to make a contract with a telecommunications company to use the mobile communication system exclusively for the drive recorder when there are portable devices that use the mobile communication system for purposes other than for the drive recorder. Therefore, it is possible to prevent the usage fee for the mobile communication system dedicated to the drive recorder from being required as a running cost.

  The drive recorder and the drive recorder system of the present invention can store high-quality moving images in the storage unit, and can improve the reliability of transmitting moving images for confirming the driving state of the vehicle to the outside. it can.

1 is a block diagram of an operation status recording system according to a first embodiment of the present invention. It is a block diagram of the drive recorder shown in FIG. It is a figure explaining an example of operation | movement of the drive recorder shown in FIG. 2 in the case of memorize | storing a temporary moving image. 3 is a flowchart of the operation of the drive recorder shown in FIG. 2 when storing a moving image for storage. 3 is a flowchart of the operation of the drive recorder shown in FIG. 2 when transmitting data to the outside. It is a block diagram of the driving | running condition recording system which concerns on the 2nd Embodiment of this invention. FIG. 7 is a block diagram of the drive recorder shown in FIG. 6. It is a sequence diagram of operation | movement of the driving | running | working condition recording system shown in FIG. 6 when a drive recorder transmits data outside. It is a block diagram of the driving | running condition recording system which concerns on the 3rd Embodiment of this invention. FIG. 10 is a block diagram of the drive recorder shown in FIG. 9. FIG. 10 is a block diagram of the mobile device shown in FIG. 9.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
First, the configuration of the driving situation recording system according to the first embodiment of the present invention will be described.

  FIG. 1 is a block diagram of an operation status recording system 10 according to the present embodiment.

  As shown in FIG. 1, the driving status recording system 10 includes a server 20 installed in a company 11 such as a car transport company, and business vehicles such as taxis, buses, and trucks belonging to the company 11. 12 is provided with a drive recorder 30 mounted on the vehicle. The driving situation recording system 10 includes a number of vehicles similar to the vehicle 12. A drive recorder similar to the drive recorder 30 is mounted on each of these vehicles.

  The server 20 is configured by a computer such as a PC (Personal Computer).

  FIG. 2 is a block diagram of the drive recorder 30.

  As shown in FIG. 2, the drive recorder 30 includes cameras 31 and 32 as imaging units, a G sensor 33 that detects the magnitude of an applied impact, and speed data of the vehicle 12 (see FIG. 1). An interface 34 for acquiring various data such as brake data and winker data from the vehicle 12, a 3G module 35 as a communication unit for transmitting data to the outside of the drive recorder 30, and a storage unit 36 for storing data And a control unit 37 for controlling the entire drive recorder 30.

  The camera 31 is a device that captures a moving image in front of the vehicle 12. The camera 32 is a device that captures a moving image including a driver inside the vehicle 12. If the moving image photographed by the camera 32 includes a driver inside the vehicle 12, for example, the moving image includes a state inside the vehicle 12 other than the driver and a state behind the outside of the vehicle 12. May be. For example, when the vehicle 12 is a taxi or a bus, when a moving image inside the vehicle 12 is captured by the camera 32, a user such as an operation manager has a driver, a customer, Can be confirmed by a moving image taken by the camera 32. In addition, when a moving image behind the vehicle 12 is captured by the camera 32, a user such as an operation manager can, for example, see how the vehicle 12 is collided with another vehicle from behind, The state of the entanglement accident by the vehicle 12 with respect to the pedestrian can be confirmed by the moving image taken by the camera 32. Each of the cameras 31 and 32 can shoot a moving image including sound. In the following description, it is assumed that the moving image includes sound.

  The 3G module 35 is a device that performs transmission and reception of data by 3G (third generation mobile communication system). The drive recorder 30 is not shown because a SIM (Subscriber Identity Module) card in which a unique ID number for identifying the telephone number used by the 3G module 35 is recorded is inserted. Has a slot.

  The storage unit 36 is configured by one or more storage devices such as an SD card, a compact flash (registered trademark), and an on-board flash. For example, the capacity of the storage unit 36 is 128 GB.

  The storage unit 36 is a moving image shot by the camera 31 or the camera 32 and has a low image quality and a moving image shot by the camera 31 or the camera 32 and has a higher image quality than the low-quality moving image. High quality video can be stored. For example, the storage unit 36 is a moving image shot by the camera 31, which is a low-quality moving image, a temporary low-quality moving image 36 a that is a high-quality moving image, a temporary high-quality moving image 36 b, and a moving image that is shot by the camera 32. Thus, it is possible to store a low-quality moving image, a temporary low-quality moving image 36c that is a high-quality moving image, and a temporary high-quality moving image 36d, respectively. The temporary low-quality moving image 36a, the temporary high-quality moving image 36b, the temporary low-quality moving image 36c, and the temporary high-quality moving image 36d are temporary moving images. In addition, the storage unit 36 is a moving image shot by the camera 31 and is a low-quality moving image, a low-quality moving image 36e for storage, which is a high-quality moving image, a high-quality moving image 36f for storage, and a moving image shot by the camera 32, respectively. In addition, a plurality of low-quality moving images 36g and high-quality moving images 36h for storage, which are low-quality moving images and high-quality moving images, respectively, can be stored. The storage low-quality video 36e, the storage high-quality video 36f, the storage low-quality video 36g, and the storage high-quality video 36h are storage videos.

  Here, the low-quality moving image is, for example, a CIF (Common Intermediate Format) moving image, a QCIF (Quarter Common Intermediate Format) moving image, or a QVGA (Quarter Video Graphics Array) moving image. The high-quality video is, for example, a video of FHD (Full High Definition), a video of HD (High Definition), or a video of WVGA (Wide Video Graphics Array). For example, it is preferable that the high-quality moving image has a high image quality that allows a number on a license plate of a vehicle being viewed to be visually recognized.

  In the case where the storage unit 36 includes a plurality of storage devices, the low-quality moving image and the high-quality moving image may be stored in separate storage devices. For example, when the storage unit 36 is composed of two SD cards, the low-quality moving image and the high-quality moving image may be stored in separate SD cards. Further, when the storage unit 36 includes an SD card and an on-board flash, the low-quality moving image may be stored in the on-board flash and the high-quality moving image may be stored in the SD card.

  The control unit 37 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory) that stores programs and various data, and a RAM (Random Access Memory) that is used as a work area of the CPU. Yes. The CPU executes a program stored in the ROM or the storage unit 36.

  The control unit 37 executes a program stored in the ROM or the storage unit 36 to generate a low-quality moving image that is a moving image shot by the cameras 31 and 32 and has a reduced image quality. Means 37a, low-quality moving picture storage means 37b for storing the low-quality moving picture in the storage unit 36, and high-quality moving picture generating means for generating a high-quality moving picture that has been taken by the cameras 31, 32 and is higher in quality than the low-quality moving picture. 37c, a high-quality moving image storage unit 37d that stores a high-quality moving image in the storage unit 36, a driving state determination unit 37e that determines the driving state of the vehicle 12, and a data transmission unit 37f that transmits a low-quality moving image.

  Next, the operation of the driving situation recording system 10 will be described.

  First, the operation of the drive recorder 30 when storing a temporary moving image will be described.

  FIG. 3 is a diagram for explaining an example of the operation of the drive recorder 30 when a temporary moving image is stored.

  The control unit 37 of the drive recorder 30 always performs the operation shown in FIG. 3 when the drive recorder 30 is driven.

  As illustrated in FIG. 3, the low-quality moving image generation unit 37 a of the control unit 37 generates a low-quality moving image based on the moving image shot by the camera 31. Similarly, the high-quality moving image generation unit 37c generates a high-quality moving image based on the moving image shot by the camera 31. The low-quality moving image generated by the low-quality moving image generation unit 37a and the high-quality moving image generated by the high-quality moving image generation unit 37c have different frame rates. For example, the low-quality moving image generation unit 37a generates a low-quality moving image of 10 fps. The high-quality moving image generation unit 37c generates a high-quality moving image of 30 fps, for example.

  Next, the low-quality moving image storage unit 37b stores the low-quality moving image generated by the low-quality moving image generation unit 37a in the storage unit 36 as the temporary low-quality moving image 36a. Here, the temporary low-quality moving image 36a is always the latest fixed-time moving image. That is, in the temporary low-quality moving image 36a, the old moving image is always deleted, and a new moving image is added.

  Similarly, the high-quality moving image storage unit 37d stores the high-quality moving image generated by the high-quality moving image generation unit 37c in the storage unit 36 as the temporary high-quality moving image 36b.

  In addition, although the moving image image | photographed with the camera 31 was demonstrated above, the low quality moving image production | generation means 37a and the low quality moving image memory | storage means 37b are similarly applied also about the moving image image | photographed with the camera 32 (refer FIG. 2). The temporary low-quality moving image 36c (see FIG. 2) is stored in the storage unit 36, and the temporary high-quality moving image 36d (see FIG. 2) is stored by the high-quality moving image generation unit 37c and the high-quality moving image storage unit 37d. Stored in the unit 36.

  Next, the operation of the drive recorder 30 when storing a moving image for storage will be described.

  FIG. 4 is a flowchart of the operation of the drive recorder 30 when storing a moving image for storage.

  The control unit 37 of the drive recorder 30 always repeats the operation shown in FIG. 4 when the drive recorder 30 is driven.

  As shown in FIG. 4, the driving state determination unit 37e of the control unit 37 determines whether or not the driving state of the vehicle is a specific driving state (S61).

  Here, the specific driving situation includes a moving image shot by the camera 31, a moving image shot by the camera 32, the magnitude of the impact detected by the G sensor 33, and various data acquired by the interface 34. It is the driving | running state which can be judged based on at least one of these. For example, the specific driving situation includes a situation where the vehicle has started suddenly, a situation in which the vehicle has suddenly braked, a situation in which the inter-vehicle distance in front of the vehicle is below a specific distance, a situation in which the vehicle is meandering, etc. Exists. The specific driving situation can be arbitrarily designated by the user.

  If the driving situation determination means 37e determines in S61 that the driving situation of the vehicle is not a specific driving situation, the operation shown in FIG.

  The low-quality moving image storage unit 37b is a moving image shot by the camera 31 and generated by the low-quality moving image generation unit 37a when it is determined in S61 that the driving state of the vehicle is a specific driving state. Is stored in the storage unit 36 as a low-quality moving image 36e for storage (S62). Here, the storage low-quality moving image 36e stored in the storage unit 36 in S62 is a moving image of a specific period with the time point determined in S61 that the driving state of the vehicle is a specific driving state as a reference time. . For example, the storage low-quality moving image 36e is a moving image of 20 seconds in total, 12 seconds before the reference time and 8 seconds immediately after the reference time. The low-quality moving image storage unit 37b uses the temporary low-quality moving image 36a for at least the moving image before the reference time among the saved low-quality moving images 36e stored in the storage unit 36 in S62.

  In the above description, the moving image shot by the camera 31 has been described. Similarly, for the moving image shot by the camera 32, the low-quality moving image storage 36g for storage is stored in the storage unit 36 by the low-quality moving image storage unit 37b. The

  The high-quality moving image storage unit 37d stores, in the storage unit 36, the high-quality moving image that has been shot by the camera 31 and is generated by the high-quality moving image generation unit 37c as the high-quality moving image 36f for storage after the process of S62. (S63). Here, the high-quality video for storage 36f stored in the storage unit 36 in S63 is a video of the same specific period as the low-quality video for storage 36e. The high-quality moving image storage unit 37d uses the temporary high-quality moving image 36b for at least the moving image before the reference time among the high-quality images for storage 36f stored in the storage unit 36 in S63.

  In the above description, the moving image shot by the camera 31 has been described. Similarly, for the moving image shot by the camera 32, the high-quality moving image storage 36h for storage is stored in the storage unit 36 by the high-quality moving image storage unit 37d. The

  The driving state determination unit 37e ends the operation shown in FIG. 4 after the process of S63.

  Next, the operation of the drive recorder 30 when transmitting data to the outside will be described.

  FIG. 5 is a flowchart of the operation of the drive recorder 30 when transmitting data to the outside.

  The control unit 37 of the drive recorder 30 performs the operation shown in FIG. 5 periodically, such as every 5 minutes, when the drive recorder 30 is driven.

  As shown in FIG. 5, the data transmission unit 37f of the control unit 37 has the storage unit 36 newly stored at least one of the low-quality video for storage 36e and the low-quality video for storage 36g during the latest one cycle. It is determined whether or not (S71).

  If the data transmission unit 37f determines in S71 that the data is not newly stored, the data transmission unit 37f generates transmission data (S72). Here, the transmission data generated in S72 includes the magnitude of the impact detected by the G sensor 33 at a regular timing such as every 1/12 seconds in the latest one cycle, and the latest one cycle. For example, it includes various data acquired by the interface 34 at regular timing such as every 1/12 seconds.

  If the data transmission unit 37f determines in S71 that the data has been newly stored, the storage unit 36f newly stores the storage unit 36 during the latest one of the storage low-quality moving image 36e and the storage low-quality moving image 36g. Data for transmission including a low-quality moving image is generated (S73). Here, the transmission data generated in S73 is the same as the transmission data generated in S72, the magnitude of the impact detected by the G sensor 33 at regular timing during the latest one cycle, and the latest data. It includes various data acquired by the interface 34 at regular timing during one period.

  After the processing of S72 or S73, the data transmission unit 37f transmits the transmission data generated in S72 or S73 to the server 20 via the 3G module 35 (S74). Here, when there is transmission data for which transmission failed due to the processing shown in FIG. 5 executed before this time, the data transmission unit 37 f also transmits the transmission data to the server 20 via the 3G module 35.

  The data transmission unit 37f ends the operation shown in FIG. 5 after the process of S74.

  The server 20 stores transmission data transmitted from the drive recorder 30. The transmission data stored in the server 20 can be used, for example, for confirming the driving situation of the vehicle 12.

  As described above, the drive recorder 30 stores the high-quality video to be stored in the storage unit 36, that is, the low-quality video having the data size smaller than the high-quality video for storage 36f and 36h, that is, the low-quality video for storage 36e. , 36g are transmitted to the outside (S73 and S74), so that the high-quality moving images, that is, the high-quality storage-use moving images 36f and 36h can be stored in the storage unit 36 (S63), and the driving status of the vehicle 12 can be determined. It is possible to improve the reliability of transmitting the confirmation moving images, that is, the storage-use low-quality moving images 36e and 36g to the outside. Therefore, the drive recorder 30 uses the detailed situation by the high-quality video for storage 36f, 36h for storage when it is necessary to check the extremely detailed situation such as when the vehicle 12 has an accident. When it is not necessary to check a very detailed situation, the user can confirm the driving situation of the vehicle 12 by using the low-quality moving images 36e and 36g for storage transmitted to the outside. .

  Since the drive recorder 30 generates the low-quality videos for storage 36e and 36g for storage having a lower frame rate than the high-quality videos for storage 36f and 36h for storage, the size of the data for the low-quality videos for storage 36e and 36g for storage is high-quality video for storage 36f. , 36h can be made smaller than the data size. Therefore, the drive recorder 30 can further improve the reliability of transmitting the storage-use low-quality moving images 36e and 36g for confirming the driving state of the vehicle 12 to the outside. Note that the drive recorder 30 may generate the storage low-quality moving images 36e and 36g having the same frame rate as the storage high-quality moving images 36f and 36h.

  The drive recorder 30 transmits the low-quality moving image when it is determined to be in a specific driving situation (YES in S61), that is, the low-quality moving images 36e and 36g for storage to the outside (YES in S71, S73 and S74). The storage low-quality moving images 36e and 36g whose driving conditions of the vehicle 12 should be confirmed can be appropriately transmitted to the outside. Therefore, the drive recorder 30 can facilitate the confirmation of the driving condition of the vehicle 12 by the low-quality images for storage 36e and 36g to be transmitted to the outside.

  Since the drive recorder 30 transmits not only the moving image of the vehicle 12 but also the moving image of the driver of the vehicle 12 to the outside, the driver of the vehicle 12 is informed when the driving condition of the vehicle 12 is a specific driving condition. The driving situation of the vehicle 12 was a specific driving situation, such as operating a portable terminal, and the driver of the vehicle 12 being asleep when the driving situation of the vehicle 12 was a specific driving situation. The state of the driver can be confirmed by a user such as an operation manager. That is, the drive recorder 30 can facilitate the confirmation of the driving situation of the vehicle 12 by the moving image of the driver of the vehicle 12.

  The drive recorder 30 does not generate a low-quality moving image based on the high-quality moving image stored in the storage unit 36, but generates a low-quality moving image based on the moving images shot by the cameras 31, 32. There is no need to read the high-quality moving image from the storage unit 36 and convert the image quality in order to generate the image-quality moving image. Therefore, the drive recorder 30 can be realized with a low-functional configuration as compared with a case where a high-quality moving image is read from the storage unit 36 and a low-quality moving image is generated by image quality conversion. Therefore, the drive recorder 30 can reduce the manufacturing cost and the device size.

  The drive recorder 30 stores not only high-quality moving images, that is, high-quality moving images for storage 36f and 36h, but also low-quality moving images, that is, low-quality moving images for storage 36e and 36g, in the storage unit 36. It can be used as a backup for high-quality video.

  Since the drive recorder 30 periodically transmits the transmission data to the server 20, the transmission data can be transmitted to the server 20 at a timing close to real time.

  In the present embodiment, the drive recorder 30 transmits and receives data by 3G. However, the drive recorder 30 may execute data transmission / reception by a mobile communication system other than 3G. For example, the drive recorder 30 is equipped with an LTE module that transmits and receives data by LTE (Long Term Evolution) and a 4G module that transmits and receives data by 4G (4th generation mobile communication system) instead of the 3G module 35. May be.

  In the present embodiment, the drive recorder 30 generates transmission data based on the settings of the drive recorder 30 itself, and transmits the generated transmission data to the server 20 based on the settings of the drive recorder 30 itself. ing. However, the drive recorder 30 generates transmission data in response to a request from the server 20 when the server 20 requests transmission of transmission data to the server 20, and sends the generated transmission data to the server 20. You may come to transmit. When the drive recorder 30 is configured to transmit data for transmission in response to a request from the server 20 to the server 20, the type and timing of information included in the data for transmission can be flexibly set by setting on the server 20 side. Can be changed.

(Second Embodiment)
Next, the structure of the driving | running | working condition recording system which concerns on the 2nd Embodiment of this invention is demonstrated.

  In addition, about the structure similar to the structure of the driving condition recording system 10 (refer FIG. 1) which concerns on 1st Embodiment among the structures of the driving condition recording system which concerns on this Embodiment, the driving condition recording system 10 is shown. The same reference numerals as those in FIG.

  FIG. 6 is a block diagram of the driving situation recording system 110 according to the present embodiment.

  As shown in FIG. 6, the configuration of the driving situation recording system 110 is such that the driving situation recording system 10 (see FIG. 1) replaces the server 20 (see FIG. 1) and the drive recorder 30 (see FIG. 1). The configuration is the same as that including the drive recorder 130 and the drive recorder 130.

  FIG. 7 is a block diagram of the drive recorder 130.

  As shown in FIG. 7, the configuration of the drive recorder 130 is a Wi-Fi (Wireless Fidelity) module instead of the 3G module 35 (see FIG. 2) as a communication unit that transmits data for transmission to the outside of the drive recorder 130. 135 is the same as that mounted on the drive recorder 30 (see FIG. 2).

  Further, the control unit 37 executes a program stored in the ROM or the storage unit 36 to thereby execute a low-quality moving image generation unit 37a, a low-quality moving image storage unit 37b, a high-quality moving image generation unit 37c, and a high-quality moving image storage unit. In addition to functioning as an operating condition determination unit 37e and a data transmission unit 37f, the control unit also functions as a power control unit 137a that controls the power supply of the drive recorder 130.

  Next, the operation of the driving situation recording system 110 will be described.

  Note that the data transmission unit 37f of the drive recorder 130 continues to generate transmission data periodically, as in the first embodiment.

  Since the operation other than the operation when the drive recorder 130 transmits data to the outside is the same as the operation of the driving situation recording system 10 according to the first embodiment, detailed description thereof is omitted.

  FIG. 8 is a sequence diagram of the operation of the driving status recording system 110 when the drive recorder 130 transmits data to the outside.

  As shown in FIG. 8, when the drive recorder 130 is connected to a wireless LAN (Local Area Network) to which the server 120 belongs, the server 120 receives identification information such as a serial number of the drive recorder 130 from the drive recorder 130. Obtain (S151). The drive recorder 130 is connected to the wireless LAN by the Wi-Fi module 135 when the vehicle 12 returns to the company 11 and enters the wireless LAN range.

  Next, the server 120 determines whether or not the drive recorder 130 is a managed drive recorder based on the identification information acquired in S151 (S152).

  When determining in S152 that the server 120 is a drive recorder to be managed, the server 120 requests the drive recorder 130 to transmit data for transmission (S153). Here, when the transmission data is being received from a drive recorder other than the drive recorder 130, the server 120 waits for the execution of the process of S153 until the transmission data is not being received from a drive recorder other than the drive recorder 130. To do.

  When the transmission of the transmission data is requested in S153, the data transmission unit 37f of the drive recorder 130 transmits the transmission data that has not been transmitted to the server 120 to the server 120 via the Wi-Fi module 135 ( S154), the operation shown in FIG.

  Server 120 stores transmission data transmitted from drive recorder 130. The transmission data stored in the server 120 can be used, for example, for confirming the driving status of the vehicle 12.

  Note that the power supply control means 137a of the drive recorder 130 has not yet transmitted transmission data to be transmitted by the data transmission means 37f when the accessory power supply of the vehicle 12 is turned off during the operation shown in FIG. When waiting for the drive recorder 130 to be turned off. That is, the power control unit 137a turns off the power of the drive recorder 130 after transmission data that has not yet been transmitted is transmitted by the data transmission unit 37f. On the other hand, the power supply control means 137a turns off the power of the drive recorder 130 when the accessory power of the vehicle 12 is turned off when the operation shown in FIG.

  As described above, the drive recorder 130 transmits the transmission data including at least one of the storage low-quality moving image 36e and the storage low-quality moving image 36g to the outside of the vehicle 12 by the short-range wireless communication. There is no need to use a communication system. Therefore, the drive recorder 130 can prevent the usage fee for the mobile communication system from being required as a running cost.

  The drive recorder 130 is low when transmission of a low-quality video is not completed immediately due to communication congestion, such as when a low-quality video is simultaneously transmitted from a drive recorder installed in each of a plurality of vehicles. Even if the accessory power of the vehicle 12 is turned off before the transmission of the image quality moving image is completed, the drive recorder 130 itself is not turned off, so that the transmission of the low quality moving image can be completed. Therefore, the drive recorder 130 can improve the reliability of transmitting a low-quality moving image to the outside.

  Note that the drive recorder 130 uses Wi-Fi as short-range wireless communication in the present embodiment. However, the drive recorder 130 may use near field communication other than Wi-Fi. For example, the drive recorder 130 may use Bluetooth (registered trademark) for short-range wireless communication.

  In this embodiment, the drive recorder 130 generates transmission data based on the settings of the drive recorder 130 itself. However, when the server 120 requests transmission of transmission data to the server 120, the drive recorder 130 generates transmission data in response to the request from the server 120, and sends the generated transmission data to the server 120. You may come to transmit. When the drive recorder 130 is configured to transmit data for transmission in response to a request from the server 120 to the server 120, the type and timing of information included in the data for transmission can be flexibly set by setting on the server 120 side. Can be changed.

  Further, when the drive recorder 130 is configured to transmit data for transmission in response to a request from the server 120 to the server 120, the power control unit 137a operates as follows. The power supply control unit 137a is configured to transmit the transmission data to the server 120 when the server 120 requests the server 120 or waits for transmission of the transmission data to the server 120. Even if the accessory power is turned off, it waits for the drive recorder 130 to be turned off until a command to turn off the drive recorder 130 is received from the server 120. Here, the server 120 is used for transmission to the server 120 when the transmission data from the drive recorder 130 cannot be normally received, such as when transmission data is being received from another drive recorder. When the drive recorder 130 is requested to wait for data transmission and the transmission data from the drive recorder 130 can be normally received, the drive recorder 130 transmits the transmission data to the server 120. To request. Then, when the server 120 receives the requested transmission data from the drive recorder 130, the server 120 transmits an instruction to power down the drive recorder 130 to the drive recorder 130. Therefore, the power control unit 137a turns off the drive recorder 130 after the data for transmission requested from the server 120 is transmitted by the data transmission unit 37f. Note that the power supply control unit 137a is not requested by the server 120 to transmit data for transmission to the server 120, and is not requested by the server 120 to wait for transmission of data for transmission to the server 120. In this case, when the accessory power of the vehicle 12 is turned off, the drive recorder 130 is turned off.

(Third embodiment)
Next, the configuration of the driving status recording system according to the third embodiment of the present invention will be described.

  In addition, about the structure similar to the structure of the driving condition recording system 10 (refer FIG. 1) which concerns on 1st Embodiment among the structures of the driving condition recording system which concerns on this Embodiment, the driving condition recording system 10 is shown. The same reference numerals as those in FIG.

  FIG. 9 is a block diagram of the driving situation recording system 210 according to the present embodiment.

  As shown in FIG. 9, the driving situation recording system 210 is configured such that the driving situation recording system 10 (see FIG. 1) includes a drive recorder 230 instead of the drive recorder 30 (see FIG. 1). This is the same as the configuration in which the driving status recording system 10 includes the portable device 240 carried by the driver.

  The portable device 240 is configured by, for example, a tablet or a smartphone.

  The drive recorder 230 and the portable device 240 constitute a drive recorder system 250 that transmits transmission data to the outside of the vehicle 12.

  FIG. 10 is a block diagram of the drive recorder 230.

  As shown in FIG. 10, the drive recorder 230 has a configuration in which a Wi-Fi module 135 is used instead of the 3G module 35 (see FIG. 2) as a communication unit that transmits transmission data to the outside of the drive recorder 230. 30 (see FIG. 2).

  FIG. 11 is a block diagram of the mobile device 240.

  As shown in FIG. 11, the portable device 240 is a display device such as an operation unit 241 that is an input device such as buttons for inputting various operations, and a display device such as an LCD (Liquid Crystal Display) that displays various information. A communication device that transmits and receives data by 3G, and Wi-Fi communication unit 243 that is a communication device that communicates with an external device such as drive recorder 230 (see FIG. 9) by Wi-Fi. A 3G communication unit 244, a storage unit 245 that is a nonvolatile storage device such as an EEPROM (Electrically Erasable Programmable Read Only Memory) and HDD (Hard Disk Drive) that stores various data, and a portable device 240 And a control unit 246 that controls the body.

  The storage unit 245 stores a data transmission program 245 a as a low-quality moving image transmission program for transmitting transmission data to the outside of the vehicle 12. The data transmission program 245a may be installed in the portable device 240 at the manufacturing stage of the portable device 240, or may be additionally installed in the portable device 240 from a storage medium such as an SD card or a USB (Universal Serial Bus) memory. Alternatively, it may be additionally installed in the portable device 240 from a network such as the Internet. For example, the data transmission program 245a may be a program that realizes Wi-Fi dithering that the mobile device 240 originally has as a function.

  The control unit 246 includes, for example, a CPU, a ROM that stores various data, and a RAM that is used as a work area for the CPU. The CPU executes a program stored in the ROM or the storage unit 245.

  The control unit 246 executes the data transmission program stored in the storage unit 245, thereby receiving the transmission data transmitted by the drive recorder 230 within the vehicle 12 by Wi-Fi within the vehicle 12 receiving means 246a. And it functions as the portable device side transmission means 246b which transmits the data for transmission received by the portable device side reception means 246a to the outside of the vehicle 12 by 3G.

  Next, the operation of the driving situation recording system 210 will be described.

  As described above, the drive recorder 30 (see FIG. 1) of the driving status recording system 10 (see FIG. 1) according to the first embodiment periodically transmits the transmission data to the server 20 every 5 minutes. (See FIG. 1). However, in the driving situation recording system 210 according to the present embodiment, the drive recorder 230 periodically transmits transmission data to the portable device 240 via the Wi-Fi module 135.

  The portable device 240 receives the transmission data transmitted by the drive recorder 230 in the vehicle 12 via the Wi-Fi communication unit 243 by the portable device-side receiving unit 246a and receives the data by the portable device-side receiving unit 246a. The transmitted data for transmission is periodically transmitted to the server 20 via the 3G communication unit 244 by the portable device-side transmission unit 246b. When transmitting the transmission data to the server 20, the portable device side transmission means 246b also transmits the transmission data to the server when there is transmission data that has failed to be transmitted by the transmission process prior to the current transmission process. 20 to send.

  As described above, the drive recorder system 250 needs to contract the use of 3G with a communication company exclusively for the drive recorder 230 when there is a portable device 240 that uses 3G for purposes other than the drive recorder 230. There is no. The portable device 240 is often carried by the driver of the vehicle 12 for purposes other than the drive recorder 230 such as for communication with the company 11. Therefore, the drive recorder system 250 can prevent the 3G usage fee dedicated to the drive recorder 230 from being required as a running cost.

  Since the drive recorder system 250 periodically transmits the transmission data to the server 20, the transmission data can be transmitted to the server 20 at a timing close to real time.

  Note that the drive recorder 230 and the portable device 240 use Wi-Fi as short-range communication in the present embodiment. However, the drive recorder 230 and the portable device 240 may use near field communication other than Wi-Fi as long as communication is performed by a method other than the mobile communication system. For example, the drive recorder 230 and the portable device 240 may use near field communication other than Wi-Fi, such as Bluetooth. Further, the drive recorder 230 and the portable device 240 may perform wired communication with each other by a cable such as a USB cable.

  In the present embodiment, portable device 240 performs data transmission / reception using 3G. However, the mobile device 240 may execute data transmission / reception by a mobile communication system other than 3G. For example, the mobile device 240 may execute data transmission / reception by LTE or 4G.

  In this embodiment, the drive recorder 230 generates transmission data based on the settings of the drive recorder 230 itself, and sends the generated transmission data to the server 20 via the portable device 240 based on the settings of the drive recorder 230 itself. It is supposed to send. However, when the drive recorder 230 requests transmission of transmission data to the server 20 from the server 20 via the portable device 240, the drive recorder 230 generates transmission data in response to the request from the server 20, and generates the generated transmission data. Data may be transmitted to the server 20 via the portable device 240. When the drive recorder 230 is configured to transmit data for transmission in response to a request from the server 20 to the server 20, the type and timing of information included in the data for transmission can be flexibly set by setting on the server 20 side. Can be changed.

  In each of the above-described embodiments, the drive recorder does not generate a low-quality moving image based on the high-quality moving image stored in the storage unit 36, but instead uses the low-quality image based on the moving images shot by the cameras 31 and 32. Generate a video. However, the drive recorder may generate a low-quality moving image by reading a high-quality moving image from the storage unit 36 and converting the image quality.

  In each embodiment described above, the drive recorder not only transmits the low-quality moving images, that is, the low-quality moving images 36e and 36g for storage, to the outside, but also stores them in the storage unit 36. However, the drive recorder may only transmit the low-quality moving images 36e and 36g for storage to the outside without storing them in the storage unit 36.

  The drive recorder includes two cameras, cameras 31 and 32 in the above-described embodiments. However, the drive recorder may include a number of cameras other than two. For example, the drive recorder may include only the camera 31 or may include three or more cameras.

  The drive recorder includes the cameras 31 and 32 in each of the embodiments described above. However, the drive recorder may be configured separately from the cameras 31 and 32.

  The drive recorder includes the high-quality moving image generation means 37c in each of the above-described embodiments. However, the drive recorder may not include the high-quality moving image generation unit 37c when the high-quality moving image remains the image quality of the moving image taken by the camera.

  The server is installed in the company 11 to which the vehicle 12 belongs in each of the above-described embodiments, but may be installed in another place. For example, the server may be installed at a location managed by a drive recorder manufacturer.

  The vehicle 12 is for business use in the above-described embodiments, but may not be for business use. For example, the vehicle 12 may be for home use.

12 Vehicle 30 Drive recorder 31, 32 Camera (shooting unit)
35 3G module (communication part)
36 Storage unit 36a Temporary low-quality video (low-quality video)
36b Temporary high-quality video (High-quality video)
36c Temporary low-quality video (low-quality video)
36d Temporary high-quality video (High-quality video)
36e Low quality video for storage (low quality video)
36f High-quality video for storage (high-quality video)
36g Low-quality video for storage (low-quality video)
36h High-quality video for storage (high-quality video)
37a Low-quality moving image generation means 37b Low-quality moving image storage means 37d High-quality moving image storage means 37e Driving condition determination means 37f Data transmission means 130 Drive recorder 135 Wi-Fi module (communication unit)
137a Power control means 230 Drive recorder 240 Portable device 245a Data transmission program (low-quality video transmission program)
246a Portable device side receiving means 246b Portable device side transmitting means 250 Drive recorder system

Claims (9)

A drive recorder mounted on a vehicle,
A storage unit for storing data;
A communication unit for transmitting data to the outside of the drive recorder;
A low-quality moving image generating means for generating a low-quality moving image with a reduced image quality, which is a moving image shot by a shooting unit mounted on the vehicle;
High-quality video storage means for storing in the storage unit a high-quality video that is a video shot by the imaging unit and has a higher image quality than the low-quality video.
A drive recorder comprising: a data transmission unit configured to transmit the low-quality moving image generated by the low-quality moving image generation unit to the outside of the drive recorder by the communication unit.   The drive recorder according to claim 1, wherein the low-quality moving image generation unit generates the low-quality moving image having a frame rate lower than that of the high-quality moving image. Comprising driving condition determining means for determining the driving condition of the vehicle;
3. The drive recorder according to claim 1, wherein the data transmission unit transmits the low-quality moving image when the driving state determination unit determines that the driving state is a specific driving state. 4.   The drive recorder according to any one of claims 1 to 3, wherein the photographing unit captures not only a moving image outside the vehicle but also a moving image of a driver of the vehicle.   The low-quality moving image generation unit generates the low-quality moving image based on a moving image shot by the shooting unit, not based on the high-quality moving image stored in the storage unit. The drive recorder according to any one of claims 1 to 4.   6. The drive recorder according to claim 1, further comprising a low-quality moving image storage unit that stores the low-quality moving image generated by the low-quality moving image generation unit in the storage unit.   The drive recorder according to any one of claims 1 to 6, wherein the data transmitting means transmits the low-quality moving image to the outside of the vehicle by short-range wireless communication. Comprising power control means for controlling the power of the drive recorder,
The power supply control unit waits to turn off the drive recorder when the accessory power supply of the vehicle is turned off and the low-quality moving image to be transmitted by the data transmission unit is not yet transmitted. The drive recorder according to claim 7. A drive recorder according to any one of claims 1 to 6,
A portable device that executes a low-quality moving image transmission program for transmitting the low-quality moving image to the outside of the vehicle,
The low-quality video transmission program is
Portable device side receiving means for receiving the low-quality moving image transmitted by the data transmitting means in the vehicle by a method other than a mobile communication system; and
A drive recorder system, wherein the portable device functions as portable device-side transmitting means for transmitting the low-quality moving image received by the portable device-side receiving means to the outside of the vehicle by the mobile communication system.

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