JP2006172350A - Image recording system and recorded image displaying method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image recording system and recorded image displaying method capable of easily grasping a moving object assembling or manufacturing process. <P>SOLUTION: The system comprises a plurality of camera units for sequentially imaging an object moving as needed, detecting means for detecting at least the time when the object is carried in respective view ranges of the camera units, and a recording device for recording images imaged by a plurality of the camera units. As the object moves, a plurality of the detecting means generate trigger signals sequentially, and the images imaged by a plurality of the camera units based on the sequentially generated trigger signals are sequentially recorded on the recording device. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image recording system and a recorded image display method, and more particularly to an image recording system and a recorded image display method for continuously capturing moving objects such as production lines.

  Conventionally, when a moving object on a production line, for example, a product such as a camera or a radio device moves on a product assembly line, the moving product is imaged with a monitoring camera and displayed on a monitor. There is known an image recording system that records an image on a recording device and is used for production management for early detection of defective products and improvement of yield. A conventional image recording system of this type, for example, a solid-state imaging device (see, for example, Patent Document 1) will be described with reference to FIG. In FIG. 7, the assembly camera parts 702a, 702b, 702c, 702d,... (Where camera parts are collectively referred to as camera parts 702) are placed on the belt conveyor 701 at regular intervals. The belt conveyor 701 is moving in the direction indicated by the arrow 703. The camera component 702 on the belt conveyor 701 also moves in the direction indicated by the arrow 703. Reference numerals 704a and 704b denote sensors. For example, 704a is a light emitting element such as an LED, 704b is a light receiving element (photosensor) that receives light from the light emitting element 704a, and is installed at a position where the camera component 702 is supplied to the belt conveyor 701. Has been.

  The sensor 704 sequentially senses the supplied camera component 702 and outputs a signal indicating that the camera component 702 has passed each time to the trigger generator 705 each time it is sensed. The trigger generator 705 generates a trigger pulse according to a signal indicating that it has been sensed, and outputs the trigger pulse to the camera device 706. The camera device 706 images the allocated imaging field range at a predetermined timing based on the input trigger pulse, and outputs the captured image to the image processing device 707. Note that the predetermined timing is set in advance, for example, a time ST1 for entering the imaging field of view of the camera device 706 after the sensor 704 senses the camera component 702.

  The image processing device 707 converts the input image into an image signal format suitable for the imaging system, and outputs the image signal to the monitor 708. The monitor 708 reproduces and displays an image from the input image signal. The monitor 708 can also display an image captured by the camera device 706 in real time. For example, the display interval is appropriately adjusted by the image processing device 707 so that the image 709a of the camera component 702a and the camera component 702b are displayed. The image 709b can also be displayed on the same monitor screen. In this case, the interval ST2 between the image 709a of the camera component 702a and the image 709b of the camera component 702b is set shorter than ST1.

  Thus, for example, when photographing a part to be assembled on the production line of the factory as described above, the production line is very long. When the assembly part 702 is supplied for the first time, imaging is performed by the camera device 706. However, when the assembly component 702 is moved by the movement of the belt conveyor 701, the fixed camera device 706 cannot capture an image of the subsequent assembly, for example. In order to solve this problem, for example, a camera device having a pan head function is used to follow the assembly component 702 for shooting, or a plurality of cameras are prepared, and each image is individually recorded. A method of recording was used.

  However, in such a conventional method, since the direction of the camera device moves, there is a problem that a non-imageable range (dead angle) is generated, and that it is extremely difficult to image many parts simultaneously. In addition, when viewing the assembly process of a series of assembled parts, it is necessary to search and display the individually recorded images separately each time. There is a demand for a method of displaying an image that shows the process.

JP 2002-335453 A

  As described above, in the conventional method, since the direction of the camera device moves, a range that does not appear is generated, and it is extremely difficult to capture a large number of parts simultaneously. In addition, when viewing the assembly process of a series of assembly parts, it is necessary to search and display each recorded image each time. From the viewpoint of process management, an image that shows a series of assembly processes in as short a time as possible. A display method is desired.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an image recording system and a recorded image display method capable of easily grasping the process of assembling and manufacturing a moving object.

  Another object of the present invention is to provide an image recording system capable of accumulating management data for assembling and manufacturing moving objects.

  Still another object of the present invention is to provide a recorded image display method capable of easily displaying management data of assembly and manufacturing of accumulated moving objects.

  The image recording system of the present invention includes a plurality of camera devices that sequentially capture an object that moves as appropriate, and a detection unit that detects a time point at which the object is carried into at least the field of view of each of the plurality of camera devices. A recording device for recording images picked up by the plurality of camera devices, and the plurality of detecting means sequentially generate trigger signals as the object moves, and based on the trigger signals generated sequentially Images captured by the plurality of camera devices are sequentially recorded in the recording device.

  Further, in the image recording system of the present invention, the moving object is a plurality of objects positioned at a predetermined interval, and the plurality of detection means are configured such that each of the objects corresponds to each of the camera devices. A point in time when the camera enters the field of view is detected, and each of the camera devices captures an image of each object, and images captured by the plurality of camera devices based on trigger signals from the plurality of detection means are captured by the object. Are sequentially recorded on the recording device together with the information for distinguishing them.

  In the image recording system of the present invention, the plurality of camera devices and the plurality of detection means are arranged for each production process along the production line.

  Further, in the image recording system of the present invention, a display means for displaying the production process is further arranged at the position of the production process, and the display means is displayed together with the object by the camera device having the production process in a visual field range. Configured to image.

  In the image recording system of the present invention, the recording device is configured to record an image captured by the camera device together with at least information related to the ID number and imaging date / time of the camera device.

  Furthermore, the present invention provides a plurality of camera devices that sequentially image a plurality of objects that move as appropriate, a detection unit that detects a time point when the objects enter the respective visual field ranges of the plurality of camera devices, An image recording system having a recording device that records an image captured by a camera device together with information for distinguishing the object, and searches image data recorded in the recording device based on the information for distinguishing the object Then, the predetermined image data of the object is read from the recording device, and the image of the object is displayed on the display unit in accordance with the moving order of the object.

  As described above, according to the present invention, the process of assembling and manufacturing a moving object moving on a belt conveyor can be recorded, and a large number of parts can be imaged simultaneously. Of course, it becomes easy to specify in which manufacturing process the defect has occurred and the cause of the occurrence. In addition, management data such as product process management and quality control can be stored, as well as an image recording system and a recorded image display method capable of easily searching and displaying management data.

  Hereinafter, an image recording system and a method for displaying a recorded image according to the present invention will be described in detail with reference to embodiments of the invention shown in the drawings. FIG. 1 is a diagram for explaining a schematic configuration of an embodiment of the present invention, and shows, for example, a production line of a factory. Reference numeral 101 denotes a belt conveyor (production line) that conveys an object to be produced in the arrow direction (moving direction). 102-1, 102-2, 102-3,... Indicate parts that are assembled, for example, while moving at a substantially constant interval. In addition, when naming a component generically, it will be called the component 102. Reference numerals 103-1, 103-2, 103-3,... 103 -N are camera devices that image the moving component 102, and N units are arranged along the production line 101. In addition, when generically referring to a camera device, it is referred to as a camera device 103. Each camera device 103 is arranged for each process A, B, C,... N of the production line, and is set so as to image the component 102 that moves in each process within the imaging field of view of each camera device. ing. Usually, this visual field range is set to about 60 degrees, for example, and one component 102 is conveyed to the visual field range of one camera device. In the case where the display is made such that the parts 102 can be distinguished from each other, there is no problem because two or more parts can be distinguished even if they are in the same visual field range. However, in the following embodiments, a case where one camera device images one product will be described as an example.

  104-1, 104-1, 104 -N are Web encoders that appropriately encode images captured by the camera devices and send them to the transmission path 107. Note that the Web encoder is collectively referred to as the Web encoder 104. The Web encoder 104 may compress the image data using JPEG (Joint Photographic Experts Group), MPEG-2 (Moving Picture Experts Group-2), or MPEG-4 technology as needed, and send it to the transmission line. it can. The Web encoder 104 can also be configured integrally with each camera device 103. Reference numeral 106 denotes a plurality of sensors. Each sensor 106 has a pair of light emitting elements 106-1a, 106-2a,... 106-Na and light receiving elements 106-1b, 106-2b,. The light receiving element (photosensor) 106-1b receives the light from the light emitting element 106-1a. The sensor 106 is disposed, for example, in the vicinity of the entrance where the component 102 moves into the imaging range of each camera device 103. When the component 102 enters the visual field range of the camera device 103, the sensor 106 is detected and a detection signal (trigger signal) is detected. Is input from the sensor to the Web encoder. The sensor 106 may be provided at the entrance and exit of the imaging range of each camera device 103, but the sensor on the exit side of the next camera device 103 also serves as the sensor on the entrance side of the imaging range of the next camera device. You can also. Reference numeral 108 denotes a recording device, and an image captured by each camera device 103 is transmitted to the recording device 108 via the Web encoder 104 and a transmission path, for example, a LAN (Local Area Network) 107, and recorded.

  Next, a specific configuration of the recording apparatus 108 will be described with reference to FIG. FIG. 2 is a block diagram showing a schematic configuration of the recording apparatus 108 used in the present invention. In FIG. 2, 201 is a CPU (Central Processing Unit) that controls the operation of the recording device 108. Reference numeral 202 denotes a recording unit that records an image captured by each camera device 103. The recording unit 202 can use a semiconductor memory, HDD (hard disk), magnetic tape, DVD (Digital Versatile Disc), or magneto-optical disk. A memory unit 203 is stored in a state where the program of the image recording apparatus 108 can be executed. When the image recording apparatus is driven, the program is sequentially read and executed. The memory unit 203 also has a function as a work memory in which image data from the camera device and image data read from the recording unit 202 are temporarily recorded.

  An I / F unit (interface unit) 204 is an interface for inputting image data from the transmission path 107. The compression / expansion unit 205 is a module that compresses the captured image data or expands the compressed image data as necessary. For example, the image data already compressed by the Web encoder 104 is decompressed and recorded in the recording device 202, or the image data sent without being compressed by the Web encoder 104 is compressed by, for example, JPEG and recorded. An operation such as recording in 202 is performed. The data management unit 206 manages various data related to the recorded image data. The data management unit 206 will be described later.

  An input / output unit 207 displays an image captured from the camera device 103 or an image recorded in the recording unit 202 on a monitor, transmits the image to another department, or displays an image from another department. It is for input. Reference numeral 208 denotes an operation unit, for example, a keyboard, a mouse, or the like, which is used by the user to perform necessary operations on the recording apparatus 108. Reference numeral 209 denotes a bus line for connecting the CPU 201 and each device.

  Next, the operation of the image recording system of the present invention shown in FIG. 1 will be described with reference to FIG. First, in step 301, for example, when the assembly component 102-1 is put into the production line 101 and moved by the belt conveyor, and the inlet side sensor 106-1 detects the assembly component 102-1, the light receiving element (photosensor) 106 is detected. -1b generates a trigger pulse. This trigger pulse is supplied to the Web encoder 104-1. At the same time, the trigger pulse is transmitted to the recording device 108.

  In step 302, the trigger pulse is supplied to the Web encoder 104-1, so that the camera apparatus 103-1 starts imaging of the assembly component 102-1. The camera device 103-1 is composed of, for example, an NTSC CCD (Charge Coupled Device) imaging device, photographs the assembly part 102-1 at 30 frames / second, and supplies the image to the Web encoder 104-1. The Web encoder 104-1 encodes the supplied image and compresses it as necessary to generate image data. In the embodiment of the present invention, if one NTSC image frame is transmitted to the recording device 108 via the transmission path 107 at 500 Kbit, the NTSC image 30 frames / second is transmitted at a transmission rate of 15,000 Kbps. The Rukoto.

  Here, transmission of image data will be described. Dn1 shown in FIG. 4A indicates image data created by the Web encoders 104-1, 104-2,... 104-N. The image data D11, D21,... Dn1 are transmitted to the recording device 108 via the transmission path 107. However, when transmitting these image data, for example, when the transmission path 107 is Ethernet (registered trademark), the size of an MTU (Maximum Transmission Unit), which is a data size that can be transmitted at one time, is a predetermined value. For example, in order to send the image data D11, it is divided into D11-1, D11-2,... D11-p and transmitted. FIG. 4B shows a transmission format for transmitting the divided image data. D11-1 shows the divided image data of the image data D11, and includes HTTP (Hyper Text Transfer Protocol), TCP. (Transmission Control Protocol) and IP (Internet Protocol) add header information when data is transmitted over Ethernet. The same applies to the other image data D21,... Dn1.

  In step 303, when the recording device 108 receives the trigger pulse issued in step 301, the recording device 108 starts the control of the CPU 201, receives the image data D 11 from the web encoder 104-1, and the recording unit 202. Image data D11. FIG. 4C schematically shows the recording state of the recording unit 202, and shows that the image data D11 from the Web encoder 104-1 is recorded at the first address 11 of the recording unit 202. Yes. Similarly, the second address 12 indicates that the image data D12 from the Web encoder 104-2 is recorded. Here, m corresponds to the number of assembly parts 102. Therefore, the image data Dmn is image data obtained by imaging the assembly component 102-m with the camera device 103-N, and m and n also represent the address (m, n) of the storage unit 202.

  In step 304, when the assembly part 102-1 on the production line further moves, the sensor 106-2 on the outlet side detects the assembly part 102-1 and the light receiving element 106-2b generates a trigger pulse, this trigger is generated. The pulse is transmitted to the recording device 108 via the Web encoder 104-2, and the process proceeds to Step 305. Until the light receiving element 106-2b of the sensor on the exit side generates a trigger pulse, the recording device 108 continues recording image data of the camera device 103-1.

  In step 305, the recording apparatus 108 ends the recording of the image data of the assembly component 102-1 from the Web encoder 104-1 based on the trigger pulse from the light receiving element 106-2b.

  In step 306, the imaging operation of the camera device 103-1 is terminated based on the trigger pulse from the light receiving element 106-2b.

  The above operation is performed in the same manner for the assembly parts 102-2, 102-3,... Moving on the production line 101. Note that the camera device 103 can start imaging of the assembly part 102 with the entrance side sensor and end the imaging with the exit side sensor as in the above embodiment. However, when the camera device 103 is turned on, the imaging is performed. Since it takes several seconds for the video to stabilize, it is more practical to always set the shooting state and control the timing of recording in the recording unit of the recording device 108 with the trigger pulse. The data transmission capacity of the transmission path 107 is generally about 100 Mbps. The NTSC image 30 frames / second described above is transmitted at a transmission capacity of 15,000 Kbps. Therefore, theoretically, on the 100 Mbps transmission path, the image data from about six camera devices 103 is recorded in the recording device 108. Can be recorded. Therefore, when image data from six or more camera devices 103 is stored in the recording device 108 or when the transmission capacity of the transmission path is small, the number of images to be transmitted is reduced or the image compression rate is increased. Or measures such as lowering the resolution. In addition, when imaging the assembly part 102 of such a production line, since it is not always necessary to capture at 30 frames / second, several pieces of image data are intermittently transmitted within the imaging range of the camera device 103. It is enough to record. In addition, since the transmission capacity of the image data can be reduced and the utilization efficiency of the transmission path 107 can be increased, the effect that a large number of camera devices 103 can be installed can be expected. Further, intermittent transmission of several pieces of image data can be realized, for example, by providing a counter in the recording apparatus 108 and setting the counter so that one frame is requested every 2 seconds.

  Next, a method for recording an image captured by the camera device 103 will be described with reference to FIG. When the assembly component 102-1 reaches the process A, the sensor 106-1 senses as described above, and a trigger pulse is supplied to the Web encoder 104-1. As a result, the camera device 103-1 and the recording device 108 are driven. The recording device 108 receives the image data of the camera device 103-1 by this trigger pulse. D11 in FIG. 5 indicates data for f11 images captured during the process A by the camera device 103-1. The assembly part 102-1 further moves on the production line 101, ends the process A, and is conveyed to the process B. When entering the process B, the sensor 106-2 issues a report, and the camera device 103-2 images the assembly component 102-1 in the same manner as described above, and the captured image is transmitted to the recording device 108 and recorded. D12 in FIG. 5 indicates data for f12 images captured during the process B by the camera apparatus 103-2. Since the assembly parts 102-1 are sequentially imaged by the camera devices 103-1, 103-2,... 103-N as the processes A, B,. As shown in FIG. 5, the recording device 108 records the image data as D11, D12,... D1n. In the recording unit 202 of the recording apparatus 108, as shown in FIG. 4B, the addresses (1, 1) (1, 2) (1, 3). Recorded as D12,... D1n.

  Thus, when the assembly part 102-1 moves from the process A to the process B of the production line 101, a new assembly part 102-2 is carried into the process A, and the sensor 106-1 reports as described above, A trigger pulse is supplied to the Web encoder 104-1. As a result, the camera device 103-1 and the recording device 108 are driven. With this trigger pulse, the recording device 108 receives image data obtained by imaging the assembly component 102-2 with the camera device 103-1. D21 in FIG. 5 indicates data for f21 images obtained by capturing the assembly component 102-2 in the period of the process A by the camera device 103-1. The assembly part 102-2 further moves on the production line 101, ends the process A, and is conveyed to the process B. When entering the process B, the sensor 106-2 issues a notification, and the camera device 103-2 images the assembly component 102-2 in the same manner as described above, and the captured image is transmitted to the recording device 108 and recorded. D22 of FIG. 5 has shown the data for 22 images f which imaged the assembly component 102-2 in the period of the process B with the camera apparatus 103-2. In this way, images for each process of all assembly parts 102 conveyed on the production line 101 are recorded in the recording unit 202 of the recording device 108 as m × n image data as shown in FIG. The FIG. 4B shows a recording state of the recording device 108 at that time.

  Next, the operation of the data management unit 206 will be described. The data management unit 206 is for appropriately processing the image data recorded in the recording unit 202 to output management data for performing product manufacturing management or to display it on a monitor. This embodiment will be described with reference to FIG. FIG. 6 displays images of the process of assembling each of the assembly parts 102-1, 102-2,... 102-m. This data is stored in association with the address (m, n) when the relationship between the assembly component 102 and the camera device 103 is determined and stored in the storage unit 202, for example. Therefore, when the image data (D11, D12,... D1n) of addresses (1, n) with addresses n from 1 to n is read from the storage unit 202 and displayed, the assembly part 102-1 shown in FIG. It is possible to display the progress of a series of assembling from A to the next process in which the process is sequentially moved and the assembly is completed in the final process N. Similarly, the progress of the assembly of each of the assembly parts 102-2,... 102-m can be displayed like a list.

  By displaying the state of assembly parts moving on the production line in this way for each assembly process, assembly defects in the assembly process, for example, component mounting errors, part deformation, part mounting defects, and other various types Since the defect can be grasped for each process, the process that has become defective can be found and improved quickly. In the above embodiment, the parts assembly line has been described as an example. However, the present invention is not limited to the parts assembly line, and it is possible to manage and manufacture products by recording production processes of various production lines. It goes without saying that it can be applied to all necessary processes such as process control.

  FIG. 8 is a schematic configuration diagram for explaining another embodiment of the present invention. In FIG. 8, reference numerals 109-1, 109-2,... 109-n denote display plates, and the numbers and symbols of the respective steps are displayed on the respective display plates. For example, the display plate displaying the symbol A in process A and the symbol B in process B is installed at a position that falls within the field of view of the imaging range of the camera device 103. Reference numerals 110-1, 110-2,... Denote handling devices for assembly parts, and when a defective product is found in the assembly component, the handling device removes the defective product. In addition, the same code | symbol is attached | subjected to the same thing as FIG. The operation of the image recording system shown in FIG. 8 is the same as that of the image recording system shown in FIG.

  Thus, as described above, displaying a series of assembling states of the assembly component 102 for the purpose of process management has been described with reference to FIG. However, when a large number of image data is displayed on the display unit of the display device at a time, it is not easy to determine which screen is an image captured in which process. Therefore, in the present invention, as described with reference to FIG. 8, the process display board 109 installed in the field of view of each camera device 103 is photographed simultaneously with photographing of the assembly part 102. FIG. 9A shows the reproduced image. In other words, the display screen 109-1 showing the process A is simultaneously displayed on the reproduction screen 901 together with the image of the assembly component 102-1. Therefore, it is easily understood that the display screen 901 is an image captured in the range of the process A by the camera device 103-1. FIG. 9B shows a reproduction image when the camera apparatus 103-2 images the process B. In this image, the assembly component 102-1 and the assembly component 902 are photographed, and the B display board 109-2 is displayed together. Therefore, it can be easily recognized that the image is captured by the camera apparatus 103-2 in the process B. In this way, it is possible to easily identify the complicated process.

  Further, on the screens of FIGS. 9A and 9B, the camera ID and the imaging date and time are displayed. In general, in the image recording system shown in FIG. 1 or FIG. 8, it is normal for a plurality of camera devices 103 to set their own camera device IDs. This ID is stored in the storage device as data attached to the image. Therefore, when an image captured by each camera device is displayed on the monitor, the ID stored in the storage device is superimposed on the displayed image and displayed. For example, since the image in FIG. 9A is an image captured by the camera device 103-1 (camera A), the camera ID is 103-1 (showing the case where the camera number and the ID are the same). Is displayed. Similarly, in FIG. 9B, the camera ID 103-2 (camera B) is displayed. Further, the camera device 103 or the Web encoder 104 has a clock function, and in the captured image, the shooting date and time is stored in the storage device as attached information, and the image captured by each camera device is displayed on the monitor. Is configured to superimpose and display the shooting date and time stored in the storage device on the displayed image. For example, in FIG. 9A, 20041112101103 is displayed on the display screen. This indicates that this image was taken on November 12, 2004 at 10:11:03. Further, when the product number is displayed on the assembled part, it is imaged together so that the part can be specified. Note that the image, product number, imaging date and time information recorded on the recording device, etc. on the process display board 109 described above are information for identifying a product (object), and are referred to as object distinction information.

  As described above in detail, it is possible to easily grasp which process and which camera image was displayed by displaying the process display board, camera ID, imaging date and time, etc. on the imaging screen. Various management data relating to production such as production management can be obtained. In addition, a necessary image can be retrieved and easily displayed by recording the image on the process display board, the camera ID, or the imaging date and time in the recording unit 202 in association with each image. Note that the object discrimination information such as the image of the process display board, the camera ID, or the imaging date / time can be easily displayed by a feature matching degree search, ID search, date / time search, etc. by image processing. Since the search method is a well-known method, a detailed description is omitted.

  In the above description, the handling devices 110-1 and 110-2 for removing defective products have been described. However, in the unlikely event that defective products are generated, the assembly component 102-2 is removed by the handling device 110-1. In other words, when the assembly part 102-2 (shown by a dotted line) in FIG. 8 is removed, the assembly part 102-2 is not detected by the sensors after the sensor 106-4. The moved assembly part 102-3 is erroneously recorded as the assembly part 102-2. In order to avoid this, when the handling device 110 operates and the assembly component 102-2 is removed, the information is notified to the camera 103, the Web encoder 104, and the recording device 108, and the removed assembly component 102- is removed. 2. Do not shoot and record in 2.

  FIG. 10 shows an image of the process of assembling the assembly parts 102-1, 102-2,... 102-m when the assembly part 102-2 is removed as described above. . As is apparent from FIG. 10, the assembly part 102-2 displays the images D21 and D22 photographed and recorded by the camera apparatuses 103-1 and 103-2, but the subsequent image data is recorded. Absent. Therefore, by analyzing the images of the series of assembly processes in FIG. 10, it can be easily determined that the assembly component 102-2 has become defective in the process C.

  In this way, the camera device is sequentially switched to capture and record the image of the object, so that the blind spot of the camera device does not occur, and the image data of a plurality of objects can be recorded simultaneously by using the network camera. It is possible to display a list of processes of manufacturing the object. In this embodiment, the case where a network camera is used has been described. However, it is also possible to perform processing using an analog video signal (for example, an NTSC signal).

  FIG. 11 is a block diagram showing a schematic configuration of still another embodiment of the present invention when an analog signal is recorded in a VTR. In FIG. 11, reference numeral 1101 denotes a matrix switch (SW), 1102-1, 1102-2,... 1102-8 denotes a VTR (VTR is collectively referred to as VTR 1102). In addition, the same code | symbol is attached | subjected to the same thing as FIG. Further, in the present embodiment, the case where eight camera apparatuses 103 and eight VTRs 1102 are installed is shown (N = 8), but it goes without saying that the present invention is not limited to this. FIG. 12 shows the recorded contents of the VTR 1102, for example, the recorded contents of the VTRs 1102-1 and 1102-2. The operation will be described below.

  The camera device 103 moves on the production line, for example, sequentially images the assembly parts 102. The captured video is appropriately switched by the matrix switch 1101 and recorded in the VTR 1102. The matrix switch 1101 is a switch circuit that selects which VTR 1102 of a plurality of designated VTRs 1102 captures captured images sent from each of the plurality of camera devices 103, and this switch circuit is a control circuit. Part (not shown).

  Here, one imaging and recording method will be described. First, when the assembly component 102-1 enters the imaging field of view of the camera device 103-1, the camera device 103-1 starts imaging of the assembly component 102-1, and the captured image is transmitted to the VTR 1102 via the matrix SW1101. Recorded as -1. Subsequently, when the assembly component 102-1 enters the imaging field of view of the camera device 103-2, the camera device 103-2 starts imaging of the assembly component 102-1, and the captured image is switched by the matrix SW1101. , Recorded in the VTR 1102-1. In this way, the assembly part 102-1 moves on the production line, and sequentially passes through each process A, B,... H, by the camera devices 103-3, 103-4,. Images are picked up and switched by the matrix SW 1101, and the manufacturing process of the assembly component 102-1 is recorded as a series of image data in the VTR 1102-1. That is, it is recorded as a series of image data of the camera 1, the camera 2,..., The camera 8 as shown in the assembly part 102-1 of the recording contents of the VTR 1102-1 in FIG.

  Similarly, when the assembly component 102-2 enters the imaging field of view of the camera device 103-1, the camera device 103-1 starts imaging the assembly component 102-2, and the captured image is displayed in the matrix SW 1101 in the VTR 1102-. 2 is recorded. Subsequently, when the assembly component 102-2 enters the imaging field of view of the camera device 103-2, the camera device 103-2 starts imaging of the assembly component 102-2, and the captured image is switched by the matrix SW1101. , Recorded in the VTR 102-2. In this way, the assembly part 102-2 moves on the production line and is sequentially captured by the camera devices 103-3, 103-4,... 103-8 each time it passes through each process, and is switched by the matrix SW1101. The manufacturing process of the assembly part 102-2 is recorded as a series of image data in the VTR 1102-2. That is, it is recorded as a series of image data of the camera 1, the camera 2,..., The camera 8 as shown in the assembly part 102-2 of the recording contents of the VTR 1102-2 in FIG. In addition, even when the assembly part 102 is located in each process, for example, eight processes from the process A to the process H, the captured images of the assembly parts 102-1, 102-2,. , Can be recorded on each of eight VTRs 1102.

  Next, when the assembly component 102-9 (showing the ninth assembly component) enters the imaging field of view of the camera device 103-1, the camera device 103-1 starts imaging the assembly component 102-9, The captured image is recorded in the VTR 1102-1 by the matrix SW1101. In this case, the captured image of the assembly component 102-9 is recorded following the captured image of the assembly component 102-1. The same applies thereafter. That is, the recording contents of the recorded contents of the VTR 1102-1 in FIG.

  Thus, in the embodiment shown in FIG. 11, the matrix SW 1101 switches between the camera device 103 and the VTR 1102 so that the captured image of one assembly part follows the assembly part moving on the production line 101. Therefore, the VTR 1102 has a feature that an assembly state in a series of processes can be automatically recorded as a continuous image for one assembly part without performing an editing operation. Also, the amount of images captured by the camera device 103 is enormous, but a recording device such as a VTR can record on an inexpensive large-capacity tape medium, so it is extremely economical and convenient for such applications. is there. Note that a recording device such as another HDD, DVD, or optical disk may be used instead of the VTR.

  Although the present invention has been described in detail above, the present invention is not limited to the embodiments of the image recording system and the recorded image display method described herein, and other image recording systems and recorded images than those described above. Needless to say, it can be widely applied to display methods.

It is a figure which shows schematic structure of one Example of this invention. 1 is a block diagram of a schematic configuration of a recording apparatus used in the present invention. The flowchart for demonstrating operation | movement of this invention is shown. It is a figure for demonstrating the transmission data of this invention, and the data recorded on a recording device. It is a figure for demonstrating the imaging method of this invention. It is a figure for demonstrating the display method of the management data of this invention. It is a figure which shows an example of the conventional image recording system. It is a figure which shows schematic structure of other one Example of this invention. It is a figure which shows one Example of the display method of the image data of this invention. It is a figure for demonstrating the display method of the other management data of this invention. It is a figure which shows schematic structure of other one Example of this invention. It is a figure explaining the recording content of VTR used in FIG.

Explanation of symbols

101: Production line, 102, 902: Assembly parts, 103, 706: Camera device, 104: Web encoder, 106, 704: Sensor, 107: Transmission path, 108: Recording device, 109: Display board, 110: Handling device, 201: CPU, 202: recording unit, 203: memory unit, 204: I / F unit, 205: compression / decompression unit, 206: data management unit, 207: input / output unit, 208: operation unit, 209: bus, 701 : Belt conveyor, 702: camera parts for assembly, 703: moving direction, 705: trigger generator, 707: image processing device, 708: monitor, 709: image, 901: display screen, 1101: matrix SW, 1102: VTR.

Claims (3)

  Images are picked up by a plurality of camera devices that sequentially pick up images of objects that move as appropriate, detection means that detects when the objects are carried into at least the field of view of the plurality of camera devices, and the plurality of camera devices. A plurality of detecting means sequentially generating trigger signals as the object moves, and the plurality of camera devices pick up images based on the sequentially generated trigger signals. An image recording system for sequentially recording the images on the recording device.   The image recording system according to claim 1, wherein the moving object is a plurality of objects positioned at a predetermined interval, and the plurality of detection units are configured such that each of the objects is a position of each of the camera devices. A point in time when the camera enters the field of view is detected, and each of the camera devices captures an image of each object, and images captured by the plurality of camera devices based on trigger signals from the plurality of detection means are captured by the object. An image recording system, wherein information is recorded on the recording apparatus sequentially together with information for distinguishing the information. A plurality of camera devices that sequentially image a plurality of objects that move as appropriate, a detection unit that detects a time point when the object enters the field of view of each of the plurality of camera devices, and images captured by the plurality of camera devices An image recording system having a recording device for recording an image together with information for distinguishing the object, searching image data recorded in the recording device based on the object distinction information, A method for displaying a recorded image, comprising: reading the image data from the recording device, and displaying the image of the predetermined object on the display unit in accordance with the moving order of the predetermined object.

Images