JP6793516B2 - Vehicle video transmission system and vehicle video transmission method - Google Patents

Description

The present invention relates to a vehicle moving image transmission system and a vehicle moving image transmission method.

Conventionally, a digital tachograph equipped with a camera stores vehicle driving data as well as moving image data of images captured at regular intervals in a recording medium such as an SD card. In addition, the digital tachograph also stores in the recording medium a search list in which the moving image data stored in the recording medium and the shooting date and time thereof are associated with each other. In addition, there is also a digital tachograph capable of transmitting moving image data and a search list stored in a recording medium by wireless communication in response to an acquisition request from an office PC or the like.

When a bus company as a business operator makes a complaint from a user, it is required to check the recorded video as a countermeasure. At that time, the digital tachograph transmits the video data and the search list to the office PC such as the head office or the sales office that responds to the complaint.

For example, the digital tachograph with a drive recorder function that records the operation status of the vehicle shown in Patent Document 1 can communicate with the office PC operated by the operation manager who manages the operation of the vehicle. , In order to make a roll call to the driver boarding the vehicle, the driver's image and the driver's voice are acquired as driver information via the in-vehicle camera / microphone and transmitted to the office PC. There is.

JP-A-2015-130109

However, when the digital tachograph is requested to acquire video data at the same time from office PCs at multiple bases such as the head office and sales offices, the digital tachograph cannot process in time and smoothly responds to these acquisition requests. I couldn't. In this case, the office PC at one base could access the digital tachograph, but the office PC at another base could not access it, and communication with the digital tachograph was blocked due to a timeout.
In addition, if the office PC of a certain base receives the video data of a predetermined time length, but the object of the complaint is not shown in the video based on this video data, the acquisition request of the video data of the predetermined time length is repeatedly requested. It was decided to repeat. In this case, since the acquisition of the next video data is requested after the reception of one video data is completed and the content is confirmed, there is a problem that it takes a long time to acquire the desired video data. In addition, due to repeated acquisition requests, access to the digital tachograph has become more concentrated, leading to a long waiting time for the user.
Further, transmitting the same moving image data from the digital tachograph to the office PCs of a plurality of bases is a waste of communication, resulting in an increase in communication cost, an increase in traffic, an increase in the load of the digital tachograph, and the like.

The present invention has been made in view of the above circumstances, and an object of the present invention is to transmit a vehicle moving image capable of promptly transmitting the moving image data when a client requests to acquire the moving image data of the image captured by the vehicle. The purpose is to provide a system and a method for transmitting vehicle video.

In order to achieve the above-mentioned object, the vehicle moving image transmission system and the vehicle moving image transmission method according to the present invention are characterized by the following (1) to (6).
(1) Correspondence between an imaging unit that captures at least one of the periphery and the inside of a vehicle and generates moving image data at predetermined time lengths, and the moving image data generated by the imaging unit and the time when the moving image data is taken. An in-vehicle device having a list generation unit for generating the attached list, an in-vehicle device-side storage unit capable of storing the moving image data and the list, and a server-side storage unit, and the moving image data and the moving image data from the in-vehicle device. A vehicle moving image transmission system including a server for acquiring the list and a client for making a transmission request for the list and a transmission request for the moving image data included in the received list to the server. When the client requests transmission of the list and the moving image data, the server acquires the list and the moving image data from the vehicle-mounted device by wireless communication, transmits the list and the moving image data to the client, and transmits the list and the moving image data to the client. When the list and the moving image data stored in the storage unit and requested to be transmitted from the client are stored in the server-side storage unit, the list and the moving image stored in the server-side storage unit. Do not transmit the data to the client and do not perform the wireless communication with the vehicle-mounted device for acquiring the list and the moving image data .

(2) An imaging unit that captures at least one of the periphery and the inside of the vehicle and generates moving image data at predetermined time lengths, a moving image data generated by the imaging unit, and a time and place where the moving image data is taken. A list generation unit that generates a list associated with the above, an in-vehicle device having the moving image data and an in-vehicle device-side storage unit capable of storing the list, and a server-side storage unit, and the moving image from the in-vehicle device. A vehicle video transmission system including a server that acquires data and the list by wireless communication, and a client that requests the server to transmit the list and also requests transmission of the video data included in the list. The client includes a list display unit for displaying the list and a location associated with the video data when the user of the client selects any of the video data included in the list. possess a map display unit for displaying a map, wherein the server, when from the client was a transmission request of the list and the video data by wireless communication to the list and the moving image data from the vehicle-mounted device When the list and the moving image data that have been acquired and transmitted to the client and stored in the server-side storage unit and the transmission request from the client is stored in the server-side storage unit, the server The list and the moving image data stored in the side storage unit are transmitted to the client, and the wireless communication with the vehicle-mounted device for acquiring the list and the moving image data is not performed .

(3) In the vehicle video transmission system having the configuration of (1) above, when the server acquires the list and the video data from the vehicle-mounted device, the list and the video data are already stored in the server-side storage unit. Overwrite the list and the moving image data stored in.

(4) In the vehicle video transmission system having any of the above configurations (1) to (3), the client can collectively request the server to transmit a plurality of video data included in the list. thing.

(5) The client requests the server to acquire the video data of a predetermined time length and the list in which the video data is associated with the time taken by wireless communication from the in-vehicle device, and the transmission request of the list and the reception. Make a request to send the video data included in the list,
When the client requests transmission of the list and the moving image data, the server acquires the list and the moving image data from the in-vehicle device by wireless communication, transmits the list and the moving image data to the client, and stores the server side. When the list and the moving image data stored in the unit and requested to be transmitted from the client are stored in the server-side storage unit, the list and the moving image data stored in the server-side storage unit are stored. Is not transmitted to the client and the wireless communication with the vehicle-mounted device for acquiring the list and the moving image data is not performed .
A vehicle video transmission method characterized by that.

(6) The client requests the server to acquire the video data of a predetermined time length and the list in which the video data is associated with the time and place of shooting from the on-board unit by wireless communication, and receives the transmission request of the list. Request the transmission of the video data included in the list.
The client displays the list received, when the client user selects one of the moving image data included in the list, and displays a map including a location associated with the moving image data, wherein When the client requests transmission of the list and the moving image data, the server acquires the list and the moving image data from the in-vehicle device by wireless communication and transmits the list and the moving image data to the client as well as a server-side storage unit. When the list and the moving image data for which the client has requested transmission are stored in the server-side storage unit, the list and the moving image data stored in the server-side storage unit are stored in the server-side storage unit. Do not perform the wireless communication with the vehicle-mounted device for transmitting to the client and acquiring the list and the moving image data.
A vehicle video transmission method characterized by that.

According to the vehicle video transmission system having the configuration of (1) above, when a client requests to acquire video data of a video captured by a vehicle, the video data can be promptly transmitted. Therefore, it is possible to shorten the time until the client reproduces the video based on the moving image data.

According to the vehicle video transmission system having the configuration of (2) above, the client user can easily find the video data he / she is looking for from the position of the vehicle-mounted device on the map, and can find the desired video data at an early stage. Therefore, the probability (hit rate) of finding the desired moving image data from a large amount of moving image data can be increased, and the operability is improved.

According to the vehicle video transmission system having the configuration of (3) above, the server stores the latest list and video data in the server-side storage unit, so that the list and video data received from many on-board units may be stored. Even if there is, it is not necessary to consume the memory capacity of the server side storage unit more than necessary, and a small capacity can be used. Therefore, the equipment cost of the server-side storage unit can be suppressed. In addition, the server-side storage unit can avoid a situation in which the remaining capacity is reduced and data cannot be stored.

According to the vehicle video transmission system having the configuration of (4) above, the server collectively transmits a plurality of video data registered in the list to the client, so that, for example, video data every 60 seconds is required for a total of 5 minutes. Even in this case, the server does not have to transmit the moving image data every 60 seconds a plurality of times in response to a plurality of moving image acquisition requests, and the moving image data can be efficiently transmitted.

According to the vehicle video transmission method having the configuration of (5) above, when the client requests to acquire the video data of the video captured by the vehicle, the video data can be promptly transmitted. Therefore, it is possible to shorten the time until the client reproduces the video based on the moving image data.

According to the vehicle moving image transmission method of the above configuration (6), the client user can easily find the moving image data searched from the position of the vehicle-mounted device on the map, and can find the desired moving image data at an early stage. Therefore, the probability (hit rate) of finding the desired moving image data from a large amount of moving image data can be increased, and the operability is improved.

According to the present invention, when a client requests to acquire moving image data of a video image captured by a vehicle, the moving image data can be promptly transmitted.

The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments for carrying out the invention described below (hereinafter, referred to as "embodiments") with reference to the accompanying drawings. ..

FIG. 1 is a diagram showing an example of a configuration of a vehicle moving image transmission system according to an embodiment of the present invention. FIG. 2 is a diagram showing a driving status screen that displays the driving status of the vehicle. FIG. 3 is a diagram showing a search list screen. FIG. 4 is a diagram showing a preview screen. FIG. 5 is a flowchart showing a search list request procedure by the client. FIG. 6 is a flowchart showing a search list transmission procedure by the server. FIG. 7 is a flowchart showing a moving image request procedure by the client. FIG. 8 is a flowchart showing a moving image transmission procedure by the server.

Specific embodiments of the present invention will be described below with reference to the respective figures. The vehicle video transmission system of the present embodiment is introduced as equipment of a business operator such as a bus company.

FIG. 1 is a diagram showing an example of the configuration of the vehicle moving image transmission system 5 according to the embodiment of the present invention. The vehicle video transmission system 5 is mounted on a system that manages the operation status of a vehicle such as a bus, and is connected to an operation recording device (hereinafter referred to as a digital tachograph) 10 via a network 70, and at least one client 30. It has a configuration including a server 50. The client 30 is an office PC installed at a sales office 60B, a head office 60A, or the like. Here, the case where it is installed in the sales office 60B is shown. In addition, the client may be installed in a grievance center that collectively handles user complaints.

The client 30 is composed of a general-purpose computer device and manages the operation status of the vehicle. The network 70 is a network (packet communication network) such as the Internet to which the radio base station 8, the client 30, and the server 50 that perform wide area communication with the digital tachograph 10 are connected, and the digital tachograph 10, the client 30, and the server 50 are connected to each other. Relay data communication between them. Communication between the digital tachograph 10 and the wireless base station 8 may be performed by a mobile communication network (mobile line network) such as LTE (Long Term Evolution) / 4G ((4th Generation)), or a wireless LAN (Local). Area Network) may be used.

The digital tachograph 10 is mounted on the vehicle and records operation data such as entry / exit time, mileage, running time, running speed, speed over, engine speed over, sudden start, sudden acceleration, sudden deceleration, and images. It is a digital tachograph having a camera function capable of taking an image. The digital tachograph 10 includes a CPU 11, a volatile memory 26B, a non-volatile memory 26A, a recording unit 17, a card I / F18, an audio I / F19, an RTC (clock IC) 21, a SW input unit 22, and a display unit 27.

The CPU 11 comprehensively controls each part of the digital tachograph 10. The non-volatile memory 26A stores an operation program or the like executed by the CPU 11.

The recording unit 17 records data such as operation data and moving image data. A memory card 65 owned by the crew is freely inserted and removed from the card I / F18. The CPU 11 writes operation data, moving image data every 60 seconds (hereinafter, simply referred to as 60-second moving image data), search list SLT, and other data to the memory card 65 connected to the card I / F18. For the memory card 65, for example, an SD card is used. Normally, when the vehicle returns to the sales office, the crew removes the SD card and inserts it into the card I / F35 of the client 30, which will be described later, to transfer the data.

A built-in speaker 20 is connected to the voice I / F19. The built-in speaker 20 emits a sound such as an alarm.
The RTC21 (timekeeping unit) measures the current time. ON / OFF signals of various buttons such as a warehousing button and a warehousing button are input to the SW input unit 22. The display unit 27 is composed of an LCD (liquid crystal display) and displays not only communication and operation status but also alarms and the like.

Further, the digital tachograph 10 has a speed I / F12A, an engine rotation I / F12B, an external input I / F13, a sensor input I / F14, an analog input I / F29, a GPS receiving unit 15, a camera I / F16, and a communication unit 24. It has a list generation unit 28 and a power supply unit 25.

A speed pulse from a vehicle speed sensor (not shown) that detects the speed of the vehicle is input to the speed I / F12A. A rotation pulse from an engine speed sensor (not shown) is input to the engine speed I / F12B. An external device (not shown) is connected to the external input I / F13, and a signal from the external device is input. Signals such as acceleration (G value) are input to the sensor input I / F14.

Signals such as a temperature sensor (not shown) for detecting the engine temperature (cooling water temperature) and a fuel amount sensor (not shown) for detecting the fuel amount are input to the analog input I / F29. The CPU 11 detects various operating states based on the information input via these I / Fs.
The GPS receiving unit 15 is connected to the GPS antenna 15a, receives a signal transmitted from a GPS satellite, and acquires a current position (GPS position information).

The camera I / F 16 is connected to a camera 23 which is installed in the vehicle and captures at least one of the periphery of the vehicle and the inside of the vehicle and generates moving image data every predetermined time length (60 seconds in the present embodiment). The predetermined time length may be a fixed time such as 2 minutes or 4 minutes, or may be a time that can be arbitrarily set by the user of the digital tachograph 10. The camera 23 has, for example, an image sensor in which pixels such as 300,000 pixels, 1 million pixels, and 2 million pixels are arranged on an imaging surface imaged through a fisheye lens. The image sensor may be composed of a CMOS (Complementary Metal Oxide Semiconductor) sensor or a CCD (Charge Coupled Device) sensor. The moving image data of the video captured by the camera 23 is recorded in the recording unit 17 or the memory card 65 in chronological order. The image captured by the camera 23 is displayed on the display unit 33 of the client 30.

Further, the camera 23 may be provided in plurality so as to be able to image not only the front of the vehicle but also the rear, left side, and right side of the vehicle, or a plurality of image sensors that image each direction may be provided in one housing. It may be contained in the body. Therefore, the camera 23 can simultaneously capture the image in the left-right direction and the image in the rear in addition to the image in front of the vehicle. In addition, the camera 23 can take an image of the vehicle interior. The camera 23 may be capable of capturing an image in an arbitrary angle direction (for example, a 45 ° direction), and may be provided with an infrared camera so that it can capture images even at night in addition to capturing visible light. ..

When the communication unit 24 performs wide area communication and is connected to the wireless base station 8 via the mobile network (mobile communication network), the communication unit 24 communicates with the client 30 via a network 70 such as the Internet connected to the wireless base station 8. I do. Further, the communication unit 24 is directly connected to the server 50 via the mobile communication network.

The list generation unit 28 periodically generates a search list SLT. The search list SLT associates the 60-second moving image data captured by the camera 23, the imaging date and time, the location of the digital tachograph 10 (GPS position information), and the vehicle code. The search list SLT may associate information other than these, such as the vehicle name, with the 60-second moving image data. The search list SLT is transmitted to and stored in the server 50 by the communication unit 24. In the present embodiment, the list generation unit 28 is configured as a hardware component of the digital tachograph 10, but is configured by software so that the CPU 11 has the function of the list generation unit 28 by executing the application. May be good.

The power supply unit 25 supplies electric power to each unit of the digital tachograph 10 by turning on the ignition switch or the like.

On the other hand, the server 50 receives the search list SLT and 60-second video data from the digital tachograph 10 mounted on each vehicle in response to the request from the client 30, and receives the search list SLT and 60-second video data for the client 30. Send data. The server 50 includes a CPU 51, a communication unit 52, a storage unit 53, and a storage 55.

The communication unit 52 communicates with the client 30 via a network 70 such as the Internet. Further, the communication unit 52 is directly connected to the digital tachograph 10 via the mobile communication network. The communication unit 52 may be connected to the digital tachograph 10 connected to the network 70 via the mobile communication network and the wireless base station 8.

The storage unit 53 is a memory that can temporarily store various data, and temporarily stores the search list SLT and 60-second moving image data transmitted from the digital tachograph 10. The storage 55 is a large-capacity storage medium such as a hard disk drive, and can store the search list SLT and the 60-second moving image data MV described later.

The CPU 51 comprehensively controls each unit of the server 50, transfers the search list SLT temporarily stored in the storage unit 53 and the 60-second moving image data to the storage 55, and stores a large amount of these data.

On the other hand, the client 30 is an office PC that is installed at the head office 60A, each sales office 60B, etc., operates on a general-purpose operating system, and communicates with the server 50. The client 30 functions as an operation management device, and has a CPU 31, a communication unit 32, a display unit 33, a storage unit 34, a card I / F35, an operation unit 36, an output unit 37, a voice I / F38, an external I / F48, and a moving image storage. It has a unit 46 and a map database (DB) 45.

The CPU 31 comprehensively controls each part of the client 30. The communication unit 32 can communicate with the digital tachograph 10 via the network 70. In addition, the communication unit 32 can also connect to other clients connected to the network 70, and can send and receive necessary data.

In addition to the operation management screen, the display unit 33 displays the driving status screen G01, the search list screen G02, the preview screen G03, and the like. The storage unit 34 stores various programs such as system analysis software for displaying the position information of the vehicle on the map.

A memory card 65 is freely inserted and removed from the card I / F35. The card I / F35 inputs driving data measured by the digital tachograph 10, moving image data of an image captured by the camera 23, and the like. The operation unit 36 has a keyboard, a mouse, and the like, and accepts operations by the administrator of the client 30. The output unit 37 outputs various data. A microphone 41 and a speaker 42 are connected to the voice I / F 38. The manager of the office can also make a voice call using the microphone 41 and the speaker 42, and when a vehicle accident occurs, he / she contacts the emergency department or the police.

The moving image storage unit 46 stores the 60-second moving image data transmitted from the server 50. When the 60-second moving image data that has already been acquired (stored) exists in the moving image storage unit 46, the client 30 does not request the server 50 to transmit the moving image data. In the present embodiment, the server 50 stores the video data and the search list finally requested by the client 30, but the video data and the search list are stored according to the capacity of the server 50. You may store more than one.

In the map database (DB) 45, map data that is searched based on the GPS position information (latitude, mild) of the vehicle and can be displayed on the display unit 33 is registered.

FIG. 2 is a diagram showing a driving status screen G01 displaying the driving status of the vehicle. On the display unit 33, the driving status screen G01 of the vehicle specified by the user of the client 30 is displayed. On the driving status screen G01, a map including driving data obtained from the digital tachograph 10 and the position of the vehicle is arranged. Further, a moving image request button bt1 is arranged below the driving status screen G01. When the user presses the moving image request button bt1, the client 30 requests the server 50 to acquire the search list SLT.

FIG. 3 is a diagram showing a search list screen G02. The search list screen G02 is displayed on the display unit 33. A part of the information of the search list SLT is displayed on the left side of the search list screen G02. As a part of the information of the search list SLT, the shooting date and time of the 60-second moving image data, the vehicle code, and the vehicle name are displayed. Further, on the right side of the search list screen G02, a map of the surrounding area centered on the position of the vehicle on which the digital tachograph 10 is mounted is displayed.

Further, a list list request button bt2 and a moving image request button bt3 are arranged above the search list screen G02, and a preview button bt4 and a close button bt5 are arranged below. When the user presses the list list request button bt2, the client 30 acquires the latest search list SLT from the server 50. Further, when the user selects 60-second video data from the search list SLT (represented by halftone dots in the figure) and presses the video request button bt3, the client 30 acquires the 60-second video data from the server 50. , Saved in the moving image storage unit 46. Further, when the user presses the preview button bt4, the preview screen is displayed on the display unit 33. Further, when the user closes the close button bt5, the search list screen G02 displayed on the display unit 33 is closed.

FIG. 4 is a diagram showing a preview screen G03. On the preview screen G03, the 60-second moving image data is reproduced and displayed on the child screen cg. The user can operate playback, stop, pause, fast forward, rewind, and the like of the preview moving image based on the 60-second moving image data reproduced and displayed on the sub screen CG. Further, information on the 60-second moving image data being previewed is displayed on the playback information screen rg displayed on the right side of the preview screen G03.

The operation of the vehicle moving image transmission system 5 having the above configuration is shown. For example, suppose that a passenger of a bus complains that "a problem has occurred on the bus around 5 o'clock" and enters the sales office 60B. The manager of the client 30 of the business office 60B identifies the bus for which the complaint has been made based on the information from the passengers. The client 30 uses the identified vehicle identification information to take the following actions.

FIG. 5 is a flowchart showing a search list request procedure by the client 30. First, the CPU 31 of the client 30 displays the driving status screen G01 (see FIG. 2) of the specified vehicle on the display unit 33 (step S1). The CPU 31 determines whether or not the video request button bt1 arranged on the operation status screen G01 is pressed by the user and a search list acquisition request is made (step S2). If there is no search list acquisition request by the user operation, the CPU 31 repeats the process of step S2.

On the other hand, when there is a search list acquisition request by a user operation, the CPU 31 transmits a search list acquisition request to the server 50 (step S3). The CPU 31 waits until the reception of the search list from the server 50 is completed (step S4).

When the reception of the search list is completed, the CPU 31 displays the search list screen G02 on the display unit 33 (step S5). At this time, map information is also displayed. When the user presses the list list request button bt2 on the search list screen G02, the search list SLT displayed on the search list screen G02 can be updated. On the search list screen G02, the CPU 31 determines whether or not any of the records registered in the search list has been selected by the user (step S6). If not selected, the CPU 31 repeats the process of step S6. On the other hand, when any of the records is selected, the CPU 31 determines whether or not the selected records are plural or individual (step S7). When a plurality of records are selected, the CPU 31 acquires records of a plurality of 60-second video data registered in the search list SLT, displays a map corresponding to these video data on the display unit 33, and captures each image. A plurality of vehicle positions at the time are displayed as points Pt (see FIG. 3) on the map (step S8). On the other hand, when one selected record is selected, that is, when an individual record is selected, the CPU 31 acquires a record of individual 60-second video data registered in the search list SLT, and a map corresponding to this video data. Is displayed on the display unit 33, and the position of the vehicle is displayed as a point Pt (see FIG. 3) on the map (step S9). After the processing of steps S8 and S9, the CPU 31 ends this processing.

FIG. 6 is a flowchart showing a search list transmission procedure by the server 50. The CPU 51 of the server 50 determines whether or not the search list acquisition request has been received (step S11). If the search list acquisition request has not been received, the CPU 51 repeats the process of step S11. On the other hand, when the search list acquisition request is received, the CPU 51 determines whether or not the vehicle search list based on the received search list acquisition request is stored in the storage 55 (step S12). When this search list is stored, the CPU 51 reads the search list SLT stored in the storage 55 (step S13), and returns (transmits) the read search list SLT to the client 30 (step S14). After this, the CPU 51 ends this process.

On the other hand, when the search list is not stored in the storage 55 in step S12, the CPU 51 communicates with the digital tachograph 10 to acquire the search list SLT stored in the memory card 65 of the digital tachograph 10 (step S15). This search list SLT is stored in the storage 55 (step S16). Further, the CPU 51 transmits the search list SLT to the client 30 in step S14. After this, the CPU 51 ends this process.

FIG. 7 is a flowchart showing a moving image request procedure by the client 30. This moving image request process is a process performed following the search list request process of FIG. That is, in the search list screen G02 displayed on the display unit 33, a specific record is selected by the user.

The CPU 31 determines whether or not the video request button bt3 is pressed by the user for the record selected on the search list screen G02 and a 60-second video data acquisition request is made (step S21). When there is no request for acquisition of 60-second moving image data by the user operation, the CPU 31 repeats the process of step S21.

On the other hand, when there is a request for acquisition of 60-second moving image data by a user operation, the CPU 31 determines whether or not the 60-second moving image data at the same time is stored in the moving image storage unit 46 (step S22). When the 60-second moving image data is stored in the moving image storage unit 46, the CPU 31 proceeds to the process of step S26. On the other hand, when the 60-second moving image data at the same time is not stored in the moving image storage unit 46, the CPU 31 requests the server 50 to acquire the 60-second moving image data (step S23). The CPU 31 waits from the server 50 until the reception of the moving image data for 60 seconds is completed (step S24). Normally, it takes about several minutes to complete the reception of the 60-second moving image data.

When the reception of the 60-second moving image data is completed, the CPU 31 saves the 60-second moving image data in the moving image storage unit 46 (step S25). Further, the CPU 31 displays a preview screen (see FIG. 4) of the 60-second moving image data on the display unit 33 (step S26). Here, when the video request button bt3 is pressed and there is no 60-second video data at the same time, a preview screen is displayed when saving the received 60-second video data, but the 60-second video at the same time is displayed. If there is data, the 60-second moving image data stored in the moving image storage unit 46 is read out and the preview screen is displayed. Further, not limited to the case of requesting a moving image, the preview screen G03 can be displayed at an arbitrary timing by the user pressing the preview button bt4.

The CPU 31 determines whether the selected records are individual or plural (step S27). When there are a plurality of selected records, the CPU 31 determines whether or not the record corresponding to the 60-second moving image data displayed on the preview screen G03 is the final record (step S28). If it is not the final record, the CPU 31 returns to the process of step S23. On the other hand, if it is the final record in step S28, or if it is determined to be individual in step S27, the CPU 31 determines whether or not the "close" button bt5 is pressed on the search list screen G02 (step S29).

If the "close" button bt5 is not pressed, the CPU 31 returns to the process of step S21. On the other hand, when the "close" button bt5 is pressed, the CPU 31 erases the search list screen G02 and ends this operation.

FIG. 8 is a flowchart showing a moving image transmission procedure by the server 50. This moving image transmission process is a process performed following the search list transmission process of FIG. That is, on the search list screen G02 displayed on the display unit 33, the moving image request button bt3 is waiting to be pressed by the user.

The CPU 51 of the server 50 determines whether or not the 60-second video data acquisition request has been received (step S31). If the 60-second moving image data acquisition request has not been received, the CPU 51 repeats the process of step S31. On the other hand, when the 60-second video data acquisition request is received, the CPU 51 determines whether or not the 60-second video data based on the received 60-second video data acquisition request is stored in the storage 55 (step S32). When the 60-second video data is stored, the CPU 51 reads the 60-second video data MV stored in the storage 55 (step S33), and returns (transmits) the read 60-second video data MV to the client 30 (transmission). Step S34). After this, the CPU 51 ends this process.

On the other hand, when the 60-second moving image data is not stored in the storage 55 in step S32, the CPU 51 communicates with the digital tachograph 10 and stores the 60-second moving image data stored in the memory card 65 or the recording unit 17 of the digital tachograph 10. It is acquired (step S35), and the 60-second moving image data is stored (saved) in the storage 55 (step S36). Further, the CPU 51 transmits the 60-second moving image data to the client 30 in step S34. After this, the CPU 51 ends this process.

The vehicle moving image transmission system 5 of the present embodiment has a configuration including a digital tachograph 10, a server 50, and a client 30. The digital tachograph 10 has a camera 23 that captures at least one of the periphery and the inside of the vehicle and generates moving image data at predetermined time lengths (for example, 60 seconds), a 60-second moving image data generated by the camera 23, and a shooting time thereof. It has a list generation unit 28 that generates a search list SLT associated with the above, and a memory card 65 that can store 60-second moving image data and the search list SLT. The server 50 has a storage 55 and acquires 60-second moving image data and a search list SLT from the digital tachograph 10. The client 30 requests the server 50 to transmit the search list SLT and the 60-second moving image data included in the received search list SLT.

When the client 30 requests transmission of the search list SLT and 60-second video data, the server 50 acquires the search list SLT and 60-second video data from the digital tachograph 10 by wireless communication and transmits the search list SLT and 60-second video data to the client 30. It is stored in the storage 55 together with. When the search list SLT and the 60-second video data requested by the client 30 are stored in the storage 55, the server 50 stores the search list SLT and the 60-second video data stored in the storage 55 in the client 30. Send to.

As a result, when there is a request from the client to acquire the moving image data of the image captured by the vehicle, the moving image data can be promptly transmitted. Therefore, it is possible to shorten the time until the client reproduces the video based on the moving image data. For example, even when a plurality of clients 30 at a base such as a head office or a sales office simultaneously request acquisition of 60-second video data, the server 50 can smoothly respond to these acquisition requests. Therefore, one client can access the digital tachograph, but another client cannot access it, and the communication with the digital tachograph is cut off due to a timeout, so that the 60-second moving image data cannot be acquired.

In addition, when one client receives the 60-second video data, but the object of the complaint is not reflected in the 60-second video data, the 60-second video data acquisition request is repeated many times to send the complaint to another client. It is possible to avoid delay in delivery of 60-second video data. Therefore, the user of another client does not have to wait for a long time, and the operability is improved.

Further, since it is not necessary to transmit the same 60-second moving image data from the digital tachograph to a plurality of clients, the waste of communication is eliminated, and the communication cost and the load of the digital tachograph can be reduced. Further, when the moving image data is stored in the storage, it is not necessary to transmit the digital tachograph, so that the time until the client 30 displays the preview screen can be shortened.

Further, the client 30 has a display unit 33. The display unit 33 displays the search list screen G02. Further, when the user of the client 30 selects any 60-second video data included in the search list SLT, the display unit 33 displays a map including a location associated with the 60-second video data on the search list screen G02. Display on.

In this way, since the vehicle equipped with the digital tachograph at the imaging time is displayed on the map, the user (client administrator) can easily find the 60-second video data searched from the position of the vehicle on the map, which is desired. 60-second video data can be searched for at an early stage. Therefore, the probability (hit rate) of finding the desired 60-second moving image data from a large amount of 60-second moving image data can be increased, and the operability is improved. In addition, the time required for the search operation can be shortened, and for example, it is not necessary to wait a long time for the user who complains at the grievance processing center.

Further, when the server 50 acquires the search list SLT and the 60-second moving image data from the digital tachograph 10, the search list SLT and the 60-second moving image data are already stored in the storage 55. Overwrite to.

In this way, since the server 50 stores only the latest search list SLT and 60-second video data in the storage 55, when storing the search list and 60-second video data received from the digital tachograph mounted on many vehicles. Even so, it is not necessary to consume the memory capacity of the storage more than necessary, and a small capacity can be used. Therefore, the equipment cost of the storage can be suppressed. Further, the storage 55 can avoid a situation in which the remaining capacity becomes small and data cannot be stored.

Further, the client 30 can collectively request the server 50 to transmit a plurality of 60-second moving image data included in the search list SLT.

In this way, the server 50 collectively transmits a plurality of 60-second video data registered in the search list SLT to the client 30, so that even if the video data is transmitted for about 5 minutes exceeding 60 seconds, for example. The server 50 does not have to transmit the 60-second moving image data a plurality of times in response to a plurality of moving image acquisition requests, and can efficiently transmit a plurality of 60-second moving image data over about 5 minutes.

The technical scope of the present invention is not limited to the above-described embodiment. The above-described embodiments can be accompanied by various modifications, improvements, and the like within the technical scope of the present invention.

For example, in the above embodiment, the search list and the 60-second video data are transmitted from the server to the client regardless of whether the search list and the 60-second video data are stored in the server. May be sent from the server to the client only if is stored on the server. As a result, the client may acquire the search list and 60-second video data directly from the digital tachograph if it is not stored on the server. In this case, the search list and 60 seconds are obtained without going through the server. It is possible to acquire video data quickly.

Further, in the above embodiment, the case where it is applied to a digital tachograph equipped with a camera as an on-board unit is shown, but the on-board unit may be a drive recorder, an ETC device with a camera, or the like.

Further, in the above embodiment, a bus company is exemplified as a business operator, but a trucking company, a taxi company, or the like may be used.

Here, the features of the vehicle moving image transmission system and the vehicle moving image transmission method embodiments according to the present invention described above are briefly summarized and listed below in [1] to [6], respectively.
[1] An imaging unit (camera 23) that captures at least one of the periphery and the inside of the vehicle and generates moving image data at predetermined time length intervals.
A list generation unit (28) that generates a list (search list SLT) in which the moving image data generated by the imaging unit and the time when the moving image data is taken are associated with each other.
An on-board unit side storage unit (memory card 65) capable of storing the moving image data and the list, and
On-board unit (digital tachograph 10) and
A server (50) having a server-side storage unit (storage 55) and acquiring the moving image data and the list from the vehicle-mounted device by wireless communication.
A client (30) that makes a transmission request for the list and a transmission request for the moving image data included in the received list to the server.
It is a vehicle video transmission system (5) equipped with
When the client requests transmission of the list and the moving image data, the server acquires the list and the moving image data from the vehicle-mounted device by wireless communication, transmits the list and the moving image data to the client, and transmits the list and the moving image data to the client. When the list and the moving image data stored in the storage unit and requested to be transmitted from the client are stored in the server-side storage unit, the list and the moving image stored in the server-side storage unit. Send data to the client,
A vehicle video transmission system characterized by this.
[2] An imaging unit (camera 23) that captures at least one of the periphery and the inside of the vehicle and generates moving image data at predetermined time length intervals.
A list generation unit (28) that generates a list (search list SLT) that associates the moving image data generated by the imaging unit with the time and place where the moving image data was taken.
An on-board unit side storage unit (memory card 65) capable of storing the moving image data and the list, and
On-board unit (digital tachograph 10) and
A server (50) that acquires the video data and the list from the vehicle-mounted device by wireless communication, and
A client (30) that makes a transmission request for the list to the server and also makes a transmission request for the moving image data included in the list.
It is a vehicle video transmission system (5) equipped with
The client has a list display unit (display unit 33) that displays the list, and a location associated with the video data when the user of the client selects any of the video data included in the list. A vehicle video transmission system characterized by having a map display unit (display unit 33) for displaying a map including the map.
[3] When the server acquires the list and the moving image data from the vehicle-mounted device, the server overwrites the list and the moving image data with the list and the moving image data already stored in the server-side storage unit.
The vehicle video transmission system according to [1].
[4] The client can collectively request transmission of a plurality of moving image data included in the list to the server.
The vehicle video transmission system according to any one of [1] to [3].
[5] A server in which the client (30) acquires video data having a predetermined time length and a list (search list SLT) in which the video data is associated with the time of shooting from the on-board unit (digital tachograph 10) by wireless communication. In response to (50), a transmission request for the list and a transmission request for the moving image data included in the received list are made.
When the client requests transmission of the list and the moving image data, the server acquires the list and the moving image data from the in-vehicle device by wireless communication, transmits the list and the moving image data to the client, and stores the server side. When the list and the moving image data stored in the unit and requested to be transmitted from the client are stored in the server-side storage unit, the list and the moving image data stored in the server-side storage unit are stored. To the client,
A vehicle video transmission method characterized by that.
[6] The client (30) acquires video data of a predetermined time length and a list (search list SLT) in which the video data is associated with the time and place of shooting from the on-board unit (digital tachograph 10) by wireless communication. The server (50) is requested to transmit the list and the received moving image data included in the list.
The client displays the received list, and when the user of the client selects any video data included in the list, the client displays a map including a location associated with the video data.
A vehicle video transmission method characterized by that.

5 Vehicle video transmission system 8 Wireless base station 10 Digital tachograph (operation recording device)
11, 31, 51 CPU
12A Speed I / F
12B engine rotation I / F
13 External input I / F
14 Sensor input I / F
15 GPS receiver 15a GPS antenna 16 Camera I / F
17 Recording unit 18 Card I / F
19 Voice I / F
20, 42 speakers 21 RTC
22 SW input unit 23 Camera 24, 32, 52 Communication unit 25 Power supply unit 26A Non-volatile memory 26B Volatile memory 27 Display unit 28 List generator 29 Analog input I / F
30 Client 33 Display unit 34, 53 Storage unit 35 Card I / F
36 Operation unit 37 Output unit 38 Voice I / F
41 Mike 45 Map database (DB)
46 Video storage unit 48 External I / F
50 Server 55 Storage 60A Headquarters 60B Sales Office 65 Memory Card 70 Network bt1, bt3 Video Request Button bt2 List List Request Button bt4 Preview Button bt5 Close Button cg Child Screen G01 Operation Status Screen G02 Search List Screen G03 Preview Screen MV Video Data Pt Point rg Playback information screen SLT search list

Claims (6)

An imaging unit that captures at least one of the periphery of the vehicle and the inside of the vehicle and generates moving image data at predetermined time intervals.
A list generation unit that generates a list in which the moving image data generated by the imaging unit and the time when the moving image data is taken are associated with each other.
An on-board unit side storage unit capable of storing the moving image data and the list, and
On-board unit with
A server having a server-side storage unit and acquiring the video data and the list from the vehicle-mounted device by wireless communication.
A client that makes a transmission request for the list and a transmission request for the moving image data included in the received list to the server.
It is a vehicle video transmission system equipped with
When the client requests transmission of the list and the moving image data, the server acquires the list and the moving image data from the vehicle-mounted device by wireless communication, transmits the list and the moving image data to the client, and transmits the list and the moving image data to the client. When the list and the moving image data stored in the storage unit and requested to be transmitted from the client are stored in the server-side storage unit, the list and the moving image stored in the server-side storage unit. The data is transmitted to the client and the wireless communication with the vehicle-mounted device for acquiring the list and the moving image data is not performed .
A vehicle video transmission system characterized by this. An imaging unit that captures at least one of the periphery of the vehicle and the inside of the vehicle and generates moving image data at predetermined time intervals.
A list generation unit that generates a list that associates the moving image data generated by the imaging unit with the time and place where the moving image data was taken.
An on-board unit side storage unit capable of storing the moving image data and the list, and
On-board unit with
A server having a server-side storage unit and acquiring the video data and the list from the vehicle-mounted device by wireless communication.
A client that makes a transmission request for the list to the server and also makes a transmission request for the moving image data included in the list.
It is a vehicle video transmission system equipped with
The client displays a list display unit for displaying the list and a map including a location associated with the video data when the user of the client selects any video data included in the list. possess a map display unit, the,
When the client requests transmission of the list and the moving image data, the server acquires the list and the moving image data from the vehicle-mounted device by wireless communication, transmits the list and the moving image data to the client, and transmits the list and the moving image data to the client. When the list and the moving image data stored in the storage unit and requested to be transmitted from the client are stored in the server-side storage unit, the list and the moving image stored in the server-side storage unit. The data is transmitted to the client and the wireless communication with the vehicle-mounted device for acquiring the list and the moving image data is not performed.
A vehicle video transmission system characterized by this. When the server acquires the list and the moving image data from the vehicle-mounted device, the server overwrites the list and the moving image data with the list and the moving image data already stored in the server-side storage unit.
The vehicle video transmission system according to claim 1, wherein the vehicle moving image is transmitted. The client can collectively request transmission of a plurality of moving image data included in the list to the server.
The vehicle moving image transmission system according to any one of claims 1 to 3, wherein the vehicle moving image is transmitted. The client requests the server to acquire the video data of a predetermined time length and the list in which the video data is associated with the time taken by wireless communication from the in-vehicle device, and includes the transmission request of the list and the received list. Make a request to send the video data
When the client requests transmission of the list and the moving image data, the server acquires the list and the moving image data from the in-vehicle device by wireless communication, transmits the list and the moving image data to the client, and stores the server side. When the list and the moving image data stored in the unit and requested to be transmitted from the client are stored in the server-side storage unit, the list and the moving image data stored in the server-side storage unit are stored. Is not transmitted to the client and the wireless communication with the vehicle-mounted device for acquiring the list and the moving image data is not performed .
A vehicle video transmission method characterized by that. The client requests the server to acquire the video data of a predetermined time length and the list in which the video data is associated with the time and place of shooting from the on-board unit by wireless communication, and the transmission request of the list and the received list. Request the transmission of the video data included in
The client displays the list received, when the client user selects one of the moving image data included in the list, and displays a map including a location associated with the video data,
When the client requests transmission of the list and the moving image data, the server acquires the list and the moving image data from the in-vehicle device by wireless communication, transmits the list and the moving image data to the client, and stores the server side. When the list and the moving image data stored in the unit and requested to be transmitted from the client are stored in the server-side storage unit, the list and the moving image data stored in the server-side storage unit are stored. Is not transmitted to the client and the wireless communication with the vehicle-mounted device for acquiring the list and the moving image data is not performed.
A vehicle video transmission method characterized by that.

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