JP2017211789A - Recorder and monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive recorder and a monitoring device that can always monitor a monitor object.SOLUTION: A recorder R of the present invention includes: a camera 1; a file generation unit 31 for consecutively generating moving image files including image data for a prescribed time by processing image data taken with the camera 1; a storage unit 32 for storing the moving image files; and a transmission unit 33 for sequentially transmitting the generated moving image files to the outside. In addition, a monitoring device M includes the recorder R, a server 10 for receiving the moving image files, and a monitor terminal 11 enabling a user to view the moving image files on the server 10.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a recorder and a monitoring device.

  In this type of recorder and monitoring device, for example, a camera installed in a vehicle, an acceleration sensor that detects the acceleration of the vehicle, and the camera acquired when the conditions such that the acceleration exceeds a threshold are satisfied. A storage unit that stores a moving image and a communication unit that transmits the moving image to the mobile phone terminal when the condition is satisfied are configured (see, for example, Patent Document 1).

  In the above-described conventional recorder and monitoring device, image data that cannot be confirmed only by the recorder is transmitted to the mobile phone terminal, so that the moving image can be viewed on the mobile phone terminal, which can contribute to the identification of the cause of the accident immediately after the occurrence of the accident.

JP 2010-238214 A

  However, in the conventional recorder and monitoring device, when an accident such as an accident occurs, a moving image is transmitted to the mobile phone terminal, so that the moving image can be viewed, but the monitoring target cannot be constantly monitored.

  In order to be able to constantly monitor the monitoring target with the external terminal, the moving image file may be processed on the recorder side so as to be streamed and transmitted to the external terminal. However, if it does in this way, the processing burden on the recorder side will become too heavy, and an expensive arithmetic processing unit must be used for a recorder, and the cost of the monitoring apparatus containing a recorder and a recorder will increase.

  Therefore, the present invention was created to improve the above-described problems, and an object of the present invention is to provide an inexpensive recorder and monitoring apparatus that can always monitor a monitoring target.

  The recorder of the present invention includes a camera, a file generation unit that processes image data captured by the camera and continuously generates a moving image file including image data for a predetermined time, a storage unit that stores the moving image file, and a generation A transmission unit that sequentially transmits the moving image files to the outside. When the recorder is configured in this manner, it is possible to realize a state in which the moving image can be viewed almost in real time without being output in a format that can be streamed on the recorder side when the moving image is distributed to the outside. Also, the data processing load can be reduced as compared with the case of performing stream data processing.

  Furthermore, in the recorder according to claim 2, the predetermined time is set to 1 minute or less. As described above, when the length of the shooting time of the image data to be collected as a set of moving images is set to 1 minute or less, when the monitoring target is monitored by a monitor terminal that reproduces moving images externally, it is displayed on the monitor terminal. The difference between the time when the user views the moving image and the time when the moving image was shot is short, and the situation of the monitoring target can be monitored in a state substantially equal to real time. Therefore, when an abnormality occurs in the monitoring target, the user can recognize the abnormality in a timely manner and deal with the abnormality.

  According to a third aspect of the present invention, the recorder includes an acceleration detection unit that is installed in the vehicle and detects acceleration acting on the vehicle, and the file generation unit associates the acceleration detected by the acceleration detection unit with the image data captured by the camera. It is configured to generate a video file. When the recorder is configured in this way, the recorder can also function as a drive recorder that stores vehicle operation information.

  According to a fourth aspect of the present invention, there is provided a recorder, a server for receiving a moving image file, and a monitor terminal capable of browsing the moving image file on the server. In the monitoring apparatus configured in this way, it is only necessary to perform processing that requires reproduction of a moving image file and a computation load on a server or a monitor terminal, and the recorder R can be made inexpensive even if the number of monitoring targets increases and the number of recorders R increases. The whole is cheap.

  Furthermore, in the monitoring device of claim 5, the monitor terminal displays the number of times that the acceleration applied to the vehicle exceeds the threshold value on the display unit. If the monitoring device is configured in this way, the user of the monitoring device can visually check the operation status of the vehicle to be monitored, and may cause an accident even when monitoring the status of multiple vehicles. Can foresee and monitor high vehicles. Further, even if an accident does not occur, it is possible to alert the operator of the vehicle having a large number of counts and prevent the accident from occurring.

  The monitoring device according to claim 6 is configured such that when an accident occurs in the vehicle, the monitor terminal displays a warning display informing the accident on the display unit. When the warning display is displayed in this way, the user of the monitoring device can quickly grasp the accident of the vehicle even when monitoring a plurality of vehicles, so that the accident can be quickly dealt with.

  Furthermore, the monitoring device of claim 7 is configured such that when the acceleration continues to take a predetermined constant value for a predetermined determination time or longer, the monitor terminal displays a warning display on the display unit. Thus, since the warning display is displayed when the acceleration continues to take a predetermined constant value for a predetermined determination time or more, when the monitoring target is a forklift, the forklift can be automatically recognized and a warning display can be displayed. . Therefore, the user of the monitoring apparatus configured as described above can quickly recognize the forklift overturn without overlooking it, and can quickly cope with the forklift overturn accident.

  Therefore, according to the recorder and the monitoring device of the present invention, the monitoring target can be constantly monitored and the cost can be reduced.

It is the figure which mounts the recorder in one embodiment in the forklift which is a vehicle. It is a figure which shows the system configuration | structure of the monitoring apparatus in one embodiment. It is a figure which shows the system configuration | structure of the recorder in one Embodiment. It is the figure which showed an example of the display of a moving image. It is a figure which shows the structure of the hardware resource of the recorder in one Embodiment. It is the figure which showed an example of the screen displayed on the display part of a monitor terminal.

  The present invention will be described below based on the embodiments shown in the drawings. As shown in FIGS. 1 and 2, the recorder R in one embodiment is applied to a drive recorder that monitors the state of the forklift F. Therefore, in this example, the recorder R and the monitoring device M will be described by taking as an example a configuration for monitoring the status of the forklift F that is a monitoring target and a vehicle.

  The recorder R includes a camera 1 installed on the forklift F, an acceleration detection unit 2 that detects acceleration acting on the forklift F, control that processes image data captured by the camera 1 and acceleration data detected by the acceleration detection unit 2. Part 3. On the other hand, the monitoring device M includes the recorder R, a server 10 that receives a moving image file, and a monitor terminal 11. Hereinafter, each part of the recorder R and the monitoring apparatus M will be described in detail.

  First, the recorder R will be described. The camera 1 includes a CCD (charge coupled device, not shown) and a lens (not shown), and is configured as a CCD camera. In this example, four cameras 1 are installed for each forklift F, and the front, rear, left and right of the forklift F can be photographed so that each camera 1 can photograph the front, rear, left and right sides of the forklift F. One unit is installed in each. In this example, a plurality of cameras 1 are installed on the forklift F so as to eliminate blind spots so that the surroundings of the forklift F can be monitored. However, only one camera 1 is installed on the forklift F. An aspect may be sufficient.

  The camera 1 continuously shoots the shooting ranges around the front, rear, left and right of the forklift F, respectively, and converts the shot images into electric signals and outputs them to the control unit 3. Note that images are interpreted in a broad sense, and images include moving images as well as still images. The camera 1 can be a camera using a CMOS (Complementary Metal Oxide Semiconductor) besides being configured as a CCD camera.

  Further, the acceleration detection unit 2 is specifically an acceleration sensor, and basically only needs to be able to detect the biaxial accelerations Gx and Gy of the front, rear, left and right of the forklift F. In addition, in order to obtain more acceleration information, a triaxial acceleration sensor that can detect acceleration in the vertical direction in addition to the front-rear and left-right directions of the forklift F may be used.

  The acceleration detection unit 2 detects the biaxial accelerations Gx and Gy of the front and rear, left and right of the forklift F at a predetermined sampling cycle, for example, a cycle of 10 ms (milliseconds), and outputs an acceleration signal to the control unit 3. To do.

  In addition, when it is desired to further obtain the information of the forklift F other than the acceleration, a sensor capable of detecting the desired information may be provided and input to the control unit 3. For example, in order to obtain information on the speed of the forklift F, a speed sensor may be provided on the forklift F and a vehicle speed pulse may be input to the control unit 3. When it is desired to obtain position information, a GPS (Global Positioning System) receiving device may be provided in the forklift F, and speed information may be obtained from the position information obtained by the GPS receiving device.

  Then, as shown in FIG. 3, the control unit 3 includes a file generation unit 31 that generates a moving image file from the image data captured by the camera 1, a storage unit 32 that stores the moving image file, and the generated moving image file. A transmission unit 33 that sequentially transmits to the external server 10 is provided.

  The file generation unit 31 takes in image data taken by the always-on camera 1 and generates a moving image file in which image data for a predetermined time is collected. In addition, the file generation unit 31 generates a moving image file by associating both the acceleration data detected by the acceleration detection unit 2 at the same time as the time and date when the image data was obtained with the image data. Note that the file generation unit 31 may generate a moving image file by thinning out the image data captured by the camera 1 to reduce the frame rate. The compression format of the moving image file is arbitrary and may be any compression format that can be processed by the server 10. Note that the length of the image data to be collected is set to 1 minute in this example, and the moving image file is generated by collecting the image data for 1 minute taken by the camera 1. The predetermined time, which is the length of the image data to be collected, may be set to 1 minute or longer, but the same time is used at the monitor terminal 11 after the camera 1 on the recorder R side captures an image. Since it takes time to browse the images, it is desirable to set it to 1 minute or less.

  Moreover, since the file generation unit 31 generates a moving image file every time image data for a predetermined time is obtained from the camera 1, moving image files including image data for a predetermined time are continuously generated. When the speed information and position information of the forklift F are obtained, the file generation unit 31 may generate a moving image file by associating the speed data and position data with the image data. In this example, since four cameras 1 are installed on one forklift F to shoot a video, as shown in FIG. 4, the file generation unit 31 of the recorder R divides the display screen into four parts vertically and horizontally. A moving image file is generated in such a manner that a moving image taken by one camera 1 is assigned to each area and displayed. 4, the upper left in the figure is the front of the forklift F, the lower left in the figure is the right side of the forklift F, the upper right in the figure is the left side of the forklift F, and the lower right in the figure is the forklift. A moving image taken behind F is assigned to each area.

  Subsequently, the storage unit 32 includes a storage medium (not shown), and when the file generation unit 31 generates a moving image file, the moving image file is stored in the storage medium. That is, the memory | storage part 32 memorize | stores a moving image file, whenever the file generation part 31 produces | generates a moving image file.

  The transmission unit 33 is configured to wirelessly communicate with the server 10. When the file generation unit 31 generates a moving image file, the transmission unit 33 transmits the moving image file to the server 10. Arbitrary standards can be adopted as a wireless communication standard, and a mobile phone communication network can be used. However, since the moving image file transmitted by the transmission unit 33 has a large capacity, a wireless LAN standard having a high communication speed can be adopted. preferable.

  As shown in FIG. 5, the hardware resources of the recorder R include a video decoder 20 that decodes image data of the camera 1 and an analog output from the acceleration detector 2 in addition to the camera 1 and the acceleration detector 2. An image signal, an acceleration signal, and a velocity signal are taken in via an A / D converter 21 that converts an acceleration signal having a voltage of 1 to a digital signal, and a video decoder 20 and an A / D converter 21. A CPU (Central Processing Unit) 22 that executes processing, a SDRAM (Synchronous Dynamic Random Access Memory) 23 that provides a storage area for the CPU 22, a flash memory 24 that stores a moving image file, and a control unit 3 For the CPU to execute A ROM (Read Only Memory) 25 for storing application and operating system program such as, and a communication device 26 that wirelessly transmits the video file to the server 10. The operation of each unit of the control unit 3 of the file generation unit 31, the storage unit 32, and the transmission unit 33 is realized by the CPU 23 executing an application program to perform the processing of the control unit 3.

  Specifically, the CPU 23 controls the video decoder 20, takes in the image data captured by the camera 1, performs processing such as compression of image data and association of acceleration data, and the like to generate a moving image file. Thus, the operation of the file generation unit 31 is realized. Further, the CPU 23 controls the communication device 26, stores the moving image file in the flash memory 24, causes the communication device 26 to transmit the moving image file to the server 10, and realizes the operations of the storage unit 32 and the transmission unit 33. To do.

  Next, the monitoring device M will be described. As shown in FIG. 2, the monitoring device M includes the recorder R, the server 10, and the monitor terminal 11 described above. The server 10 can communicate with the recorder R, receives the moving image file to be transmitted, stores the moving image file, and performs processing so that the moving image file can be viewed on the monitor terminal 11.

  In this example, since the transmission unit 33 performs wireless communication based on the wireless LAN standard, the monitoring device M can transmit a moving image file from the transmission unit 33 to the external server 10. A repeater 12 is provided. A plurality of wireless LAN repeaters 12 are installed to cover the entire range in which the forklift F travels and to enable communication with the server 10. If the distance between the location where the server 10 is installed and the location where the forklift F actually travels is far away and communication is difficult only by wireless LAN communication, it is connected to the Internet communication network to communicate with the wireless LAN repeater 12. A wireless LAN base station that provides a possible access point may be provided. When the operation location of the forklift F is separated from the server 10, the recorder R and the server 10 may communicate with each other through the wireless communication and the Internet communication network in this way.

Then, when the server 10 receives the moving image file that is sequentially generated and transmitted by the recorder R, the server 10 stores the moving image file and refers to the associated acceleration data so that the acceleration exceeds a preset threshold value. Count and store the number of times. For example, if the longitudinal acceleration is G _X and the lateral acceleration is G _Y , the server 10 sets a threshold value for each of the acceleration G _X and the acceleration G _Y , and the accelerations G _X and G _Y exceed the threshold value. The number of times that the combined vector exceeds the threshold by setting a threshold for the combined vector of acceleration G _X and acceleration G _Y , that is, (G _X ² + G _Y ² ) ^1/2 May be counted. Note that a threshold may be set for the combined vector of acceleration G _X and acceleration G _Y , that is, (G _X ² + G _Y ² ) ^1/2 , and the number of times that the combined vector exceeds the threshold may be counted. Since the calculation of the combined vector includes route calculation and the calculation load is large, a threshold may be set for the value of G _X ² + G _Y ² to avoid the route calculation. Further, in the case of the forklift F, since it is possible to turn on the spot, the acceleration detection unit 2 includes not only the acceleration sensor but also the gyro sensor, detects the yaw angular velocity of the forklift F, and detects the yaw angular velocity or yaw. A threshold may be set for the angular acceleration, and the number of times that the threshold is exceeded may be counted. The above-mentioned threshold value is preferably set to an acceleration value at which the risk of the forklift F falling down is recognized, an acceleration value acting on a fold when in contact with something, or the like. You can expect a higher probability.

Further, the server 10 detects acceleration of the forklift F by analyzing acceleration data associated with the moving image file. Specifically, when the forklift F is falling, since the resultant vector of the acceleration in the longitudinal direction and the lateral direction acceleration detecting section 2 detects the continue taking a constant value, the server ^{_{10, (G X 2 + G Y}} 2) 1 ^If the value of ^{/ 2} remains constant and does not change for a predetermined time, it is determined that the forklift F has fallen.

Note that the vertical acceleration Gz may be further used for determining whether the forklift F falls. If the gravitational acceleration 9.8 m / s ² is expressed as 1.0 G, the vertical acceleration Gz is about 1.0 G during normal operation of the forklift F, but the vertical acceleration Gz becomes a value close to 0 G during a fall. For example, by further adding the condition that the vertical acceleration Gz is 0.2 G or less to the forklift F fall judgment, the forklift F can be judged more accurately.

  In this example, the monitor terminal 11 includes an input device 11a such as a keyboard and a mouse that accepts user input, a display 11b as a display unit, and a computer 11c connected to the input device 11a and the display 11b to control them. It is configured. The monitor terminal 11 can communicate with the server 10 by wireless communication, and can request the server 10 to view a moving image according to an instruction from the user. The server 10 and the monitor terminal may perform wired communication. In this example, specifically, the monitor terminal 11 executes browser software to access the server 10 and requests the server 10 to view a moving image file from a web page provided by the server 10.

  When there is a request for instructing browsing of the moving image file with the monitor terminal 11 as the client side, the server 10 transmits data to the monitor terminal 11 in a format in which the moving image file can be viewed with a browser. Specifically, when there is a request for monitoring the forklift F from the monitor terminal 11, the server 10 transmits data of the latest video file among the video files that can be received from the recorder R and played back. Further, when the server 10 receives a moving image file that is shot at a time later than the moving image file sent to the monitor terminal 11 and is sequentially transmitted from the recorder R, the server 10 sequentially transmits the data of the moving image file to the monitor terminal 11. . The monitor terminal 11 displays the moving image reproduced on the browser on the display 11b, and sequentially reproduces the moving image file sequentially sent from the server 10. Therefore, although the moving image photographed by the recorder R is displayed on the display 11b of the monitor terminal 11 with a slight time delay from the photographing time, the user of the monitoring device M always keeps the state of the forklift F almost equal to real time. Can be monitored.

  The server 10 transmits data to the monitor terminal 11 in a format that enables streaming distribution of the moving image file, and the monitor terminal 11 can view the moving image without receiving all of the data of the moving image file. In addition, when the monitor terminal 11 accesses with browser software, the server 10 may transmit the data of the moving image file according to the above procedure without any special request. In this case, when the monitor terminal 11 accesses the server 10 with a browser, the moving image of the forklift F is automatically reproduced, so that the user can immediately monitor the forklift F.

  In this example, the server 10 functions as a web server that performs necessary processing according to a request from the monitor terminal 11 using CGI (Common Gateway Interface) and sends data to the monitor terminal 11. Note that a video file specified by the user among the video files stored in the server 10 can be reproduced by a request from the monitor terminal 11.

  In this example, the moving image files received from the six recorders R are displayed on the display screen of the display 11b of the monitor terminal 11 so that the six forklifts F can be monitored. It is displayed and reproduced in the area P.

  Moreover, you may enable it to transmit instructions to the recorder R mounted in any forklift F from the input device 11a of the monitor terminal 11. When the recorder R receives the instruction item, the recorder R gives a warning or a work instruction to the worker according to the instruction item by voice or voice. As a result, the monitor terminal 11 can alert the worker who is performing dangerous driving from the supervisor who monitors the state of the forklift F, and can also instruct work items, change work places, and the like.

  Further, the number of times that the acceleration counted by the server 10 exceeds the threshold value is also transmitted from the server 10 as data to the monitor terminal 11, and in this case, the display screen of the display 11 b is immediately below the moving image reproduction area P of each recorder R. The count is displayed in the count count display area C in the form of a bar graph. In this example, since four cameras 1 are installed on one forklift F and a moving image is taken, as shown in FIG. 6, the file generation unit 31 of the recorder R has each square divided into four regions by diagonal lines. Each moving image file is generated in such a manner that moving images taken by one camera 1 are displayed.

  Further, when the server 10 detects the fall of the forklift F, the server 10 warns on the moving image reproduction area P that displays the moving image of the recorder R mounted on the forklift F that is displayed on the display 11b and is determined to have fallen. Data for displaying the display K is transmitted to the monitor terminal 11. Thereby, since the warning display K is displayed on the display screen of the display 11b of the monitor terminal 11, the user can quickly recognize the fall of the forklift F. Instead of simply displaying the warning K, it is determined and displayed whether a fall has occurred, a collision has occurred, or the vehicle is in a dangerous driving state (such as a sudden start or sudden braking). You may do it.

  As described above, the server 10 processes the acceleration data, but the monitor terminal 11 may process the acceleration data associated with the moving image file transmitted from the server 10 to obtain the count number. . When the yaw angular velocity is detected, this may also be processed on the monitor terminal 11 side to count the number of times that the yaw angular velocity or the yaw angular acceleration exceeds the threshold value. Further, the server 10 and the monitor terminal 11 are adapted to reproduce a moving image file on a browser by using CGI. However, software for reproducing a moving image is stored in the monitor terminal 11, and the monitor terminal 11 stores the server 10. It is also possible to receive the provision of only the moving image file from itself and perform the moving image reproduction process. Further, the determination of the fall of the forklift F and the process of displaying the warning display K may be performed not on the server 10 side but on the monitor terminal 11 side. However, when the server 10 functions as a web server, the processing on the client-side monitor terminal 11 is reduced, so the cost of the monitor terminal 11 is reduced. Therefore, even when a plurality of monitor terminals 11 are installed, the cost of the entire system is reduced. Is also reduced.

  The recorder R and the monitoring device M are configured as described above. The recorder R generates image data for a predetermined time taken by the camera 1 as one moving image file and transmits it to the server 10. The moving image file is stored in the server 10 and can be viewed on the monitor terminal 11. The monitor terminal 11 can browse the latest video file when monitoring the forklift F. Therefore, the user of the monitoring device M can always monitor the status of the forklift F with the monitor terminal 11 although there is a slight delay from the photographing time of the camera 1.

  The recorder R according to the present invention stores the moving image file, the camera 1, the file generating unit 31 that continuously processes the image data captured by the camera 1 and generates moving image files including image data for a predetermined time. And a transmission unit 33 that sequentially transmits the generated moving image file to the outside. When the recorder R is configured in this way, it is possible to realize a state in which the moving image can be viewed almost in real time without being output in a format that can be streamed on the recorder R side when the moving image is distributed to the outside. Therefore, according to the recorder R of the present invention, even if the monitoring target can be constantly monitored, the processing load of the recorder R is light and it is not necessary to use an expensive arithmetic processing unit for the arithmetic processing unit of the recorder R. It becomes. Note that the recorder R does not have to include the acceleration detection unit 2, and the monitoring target is not limited to the vehicle, and various devices and places may be monitored.

  In this example, the recorder R is installed in the vehicle and includes an acceleration detection unit 2 that detects an acceleration acting on the vehicle, and the file generation unit 31 detects the acceleration detected by the acceleration detection unit 2 in the image data captured by the camera 1. Are associated with each other to generate a video file. When the recorder R is configured in this way, the recorder R can also function as a drive recorder that stores vehicle operation information.

  Furthermore, in the recorder R of this example, the predetermined time is set to 1 minute or less. In this way, when the length of the shooting time of the image data to be batched moving image files is set to one minute or less, the monitor terminal 11 that reproduces moving images externally monitors the forklift F that is the monitoring target. The difference between the time when the user browses the moving image displayed on the terminal 11 and the time when the moving image is taken is short, and the situation of the forklift F can be monitored in substantially the same state. Therefore, when an abnormality occurs in the monitoring target, the user can recognize the abnormality in a timely manner and deal with the abnormality.

  In addition, the monitoring apparatus M of this example includes a recorder R, a server 10 that receives a moving image file, and a monitor terminal 11 that can view the moving image file on the server 10. In the monitoring apparatus M configured as described above, the server 10 or the monitor terminal 11 only needs to perform processing that requires reproduction of a moving image file and a calculation load, and the recorder R can be made inexpensive even if the number of monitoring targets increases and the number of recorders R increases. Therefore, the entire system can be inexpensive. If the server 10 functions as a web server and reduces processing on the monitor terminal 11 side, the cost of the monitor terminal 11 is reduced. Therefore, even when a plurality of monitor terminals 11 are installed, the cost of the entire system is also reduced. Is done.

  Moreover, in the monitoring apparatus M of this example, the monitor terminal 11 displays the number of times that the acceleration applied to the vehicle exceeds the threshold value on the display 11b as a display unit. When the monitoring device M is configured in this manner, the user of the monitoring device M can visually check the operation status of the forklift F that is a monitoring target, and even if the status of a plurality of forklifts F is monitored, an accident can occur. It is possible to predict and monitor the forklift F that is likely to cause Further, even if no accident occurs, the operator of the forklift F having a large number of counts can be alerted to prevent the accident from occurring.

  Moreover, in the monitoring apparatus M of this example, when an accident occurs in the forklift F as a vehicle, the monitor terminal 11 displays a warning display K that notifies the accident on the display 11b that is a display unit. When the warning display K is displayed in this way, the user of the monitoring device M can quickly grasp the accident of the vehicle even when monitoring a plurality of vehicles, so that the accident can be quickly dealt with.

  Further, the monitoring device M of this example is configured such that the monitor terminal 11 displays a warning display K on the display 11b as a display unit when the acceleration continues to take a predetermined constant value for a predetermined determination time or longer. As described above, when the acceleration continues to take a predetermined constant value for a predetermined determination time or more, a warning display K is displayed. Therefore, when the monitoring target is the forklift F, the fall accident of the forklift F is automatically recognized and a warning is displayed. K can be displayed. Therefore, the user of the monitoring device M configured in this way can quickly recognize without overlooking the forklift F and can quickly cope with the forklift F overturning accident.

  This is the end of the description of the embodiment of the present invention, but the scope of the present invention is of course not limited to the details shown or described.

DESCRIPTION OF SYMBOLS 1 ... Camera, 2 ... Acceleration detection part, 10 ... Server, 11 ... Monitor terminal, 11b ... Display (display part), 31 ... File generation part, 32 ... Memory | storage part, 33 ... Transmitter, F ... Forklift (vehicle), M ... Monitoring device, R ... Recorder

Claims (7)

A camera,
A file generation unit that continuously generates a moving image file including image data for a predetermined time by processing image data captured by the camera;
A storage unit for storing the video file;
A recorder comprising: a transmission unit that sequentially transmits the generated moving image file to the outside. The recorder according to claim 1, wherein the predetermined time is set to 1 minute or less. An acceleration detecting unit that is installed in the vehicle and detects acceleration acting on the vehicle;
The recorder according to claim 1 or 2, wherein the file generation unit generates a moving image file by associating the acceleration detected by the acceleration detection unit with image data captured by the camera. The recorder according to any one of claims 1 to 3,
A server for receiving the video file;
A monitoring device comprising: a monitor terminal capable of browsing the moving image file on the server. A recorder according to claim 3,
A server for receiving the video file;
A monitor terminal having a display unit capable of reproducing the video file on the server,
The monitor device displays the number of times that the acceleration applied to the vehicle exceeds a threshold set for the acceleration on the display unit. The monitoring apparatus according to claim 5, wherein when an accident occurs in the vehicle, the monitor terminal displays a warning display notifying the accident on the display unit. The monitoring apparatus according to claim 6, wherein the monitor terminal displays the warning display on the display unit when the acceleration continues to take a predetermined constant value for a predetermined determination time or longer.

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