JP2010204758A - Photographing subject selection device, method and program of controlling the same, and computer-readable recording medium recording the program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To appropriately select a photographing subject when abnormality occurs in a plurality of facilities. <P>SOLUTION: The maintenance operation recording device 1 includes: a signal obtaining part 101 which obtains occurrence information showing occurrence of a predetermined event in any one facility 3 of a plurality of facilities 3 and the facility 3 concerned, and termination information showing termination of the predetermined event and the facility 3 concerned; and a photographing subject determination part 102 which selects, when the signal obtaining part 101 obtains the occurrence information, the facility 3 shown by the occurrence information as a photographing subject for a period to obtaining of the termination information showing the same facility 3 as the facility 3 shown by the occurrence information, and selects, when the plurality of facilities 3 is overlapped in the period, the facility 3 with high priority order as the photographing subject. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a photographing target selection device that selects a photographing target according to importance, a method for controlling a photographing target selection device, a photographing target selection device control program, and a computer-readable recording medium on which the program is recorded.

  In the field of production management, appropriate equipment maintenance is necessary to maintain the productivity of the production line. For example, when an abnormality occurs in one of the production line facilities, if the cause of the abnormality is appropriately removed and no measures are taken so as not to cause the abnormality to reoccur, the productivity of the production line is significantly reduced. In addition, automation is being promoted in recent production lines, and maintenance work is performed by a minimum number of workers. Therefore, it is not very common for maintenance work to be carried out by a plurality of people, and the transfer of maintenance work techniques is often done in writing or verbally.

  However, it is difficult to express the technology of maintenance work by words alone, and it is difficult to convey the technical contents surely by sentences and verbs. If maintenance technology is not communicated, unskilled workers may perform maintenance work, resulting in a decrease in productivity of the production line.

  In view of this, a video of the production line is taken, and when an abnormality occurs in the equipment, the location where the abnormality has occurred and the maintenance work status are confirmed on the video. By taking a video of maintenance work by skilled workers, the technology can be communicated using video. As a result, technology that is difficult to convey in words can be conveyed using video, and maintenance work technology can be conveyed appropriately from person to person.

  And there are the following techniques for photographing production lines with moving images. For example, Patent Document 1 discloses a technique for photographing an abnormal situation by moving a video camera to a position where a location where the abnormality has occurred can be imaged when an abnormality occurs in equipment in a factory.

  Patent Document 2 discloses a technique for automatically storing and reusing video data associated with control data by associating the control data with video data through absolute time and sharing the data. ing.

  Further, Patent Document 3 discloses a first process in which the quality of electronic parts and the operation information of the equipment are managed in a database together with the detection time in the equipment for processing / inspecting the electronic parts, and the equipment before and after the detection time. A second step of managing operation information indicating an operation state in synchronization with the detection time; and a third step of outputting operation information managed in the second step using the detection time managed in the first step as a search key. A quality analysis monitoring method comprising a process is disclosed.

JP 2002-99325 A (published April 5, 2002) JP 2007-235668 A (published September 13, 2007) JP-A-9-102700 (published on April 15, 1997)

  However, the conventional configuration causes the following problems. In other words, when photographing the production line with video, it is necessary to photograph the entire production line in order to photograph maintenance work without omission. When taking a full view of the production line, if the resolution is low, the individual equipment will not be clearly visible. Therefore, it becomes difficult to distinguish the work contents of individual work. In addition, when high-resolution video shooting is performed in order to make it easy to determine the work content, the size of the recorded data increases rapidly, which compresses the capacity of the memory and increases the processing time for recording.

  On the other hand, in the technique described in Patent Document 1, since only the area around the facility where the abnormality has occurred is photographed, the above problem can be addressed. However, the following problems occur when equipment abnormalities occur at a plurality of locations. That is, when equipment abnormalities occur at a plurality of locations, the maintenance worker is considered to perform maintenance from an important equipment in order to maintain the productivity of the production line. However, in the method described in Patent Document 1, the maintenance work is performed. The equipment that is being used is not always photographed.

  Note that Patent Document 2 only describes a data storage method, and Patent Document 3 only describes that the failure occurrence status of each facility is grasped in synchronization with the generation time. However, it does not describe a method for selecting a subject to be photographed.

  In order to maintain the productivity of the production line, it is important to determine which equipment should be prioritized for maintenance when an abnormality occurs in a plurality of facilities. This is because the subsequent productivity is influenced by the time required to restore the equipment, the role of the equipment in the production line, and the like. Therefore, the maintenance worker determines the equipment to perform maintenance work in consideration of the importance of the equipment.

  Therefore, the maintenance work cannot be reliably photographed unless an appropriate facility is selected as an object to be photographed by the worker.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to realize a photographing target selection device that appropriately selects a photographing target when abnormality occurs in a plurality of facilities. .

  In order to solve the above-described problem, in the photographing target selection device according to the present invention, one camera takes a plurality of facilities included in a production line as photographing targets, and the photographing target of the camera is selected from the plurality of facilities. In the imaging object selection device that selects the facility to be used, the fact that a predetermined event has occurred in any one of the plurality of facilities, the occurrence information indicating the facility, the completion of the predetermined event, and the facility Information acquisition means for acquiring end information indicating the occurrence information, and when the information acquisition means acquires the generation information, the generation information indicates a period until acquisition of end information indicating the same equipment as the equipment indicated by the generation information An imaging target selecting means for selecting an equipment as an imaging target and selecting an equipment with a higher priority as an imaging target when the above period is overlapped by a plurality of facilities. It is characterized in.

  In addition, in the control method of the photographing target selection device according to the present invention, one camera handles a plurality of facilities included in the production line as a photographing target, and the equipment to be photographed by the camera out of the plurality of facilities. A method for controlling an imaging target selecting device that selects a predetermined event in any one of the plurality of facilities, occurrence information indicating the facility, and completion of the predetermined event An information acquisition step for acquiring end information indicating the equipment, and a period until acquisition of end information indicating the same equipment as the equipment indicated by the generation information when the generation information is acquired in the information acquisition step. And selecting a facility to be photographed, and when the period overlaps with a plurality of facilities, a photographing target selection step of selecting a facility with a high priority as a photographing target. It is characterized in Mukoto.

  According to the above configuration or method, out of the plurality of facilities included in the production line, the occurrence information indicating that the predetermined event has occurred and the occurrence information indicating the facility, and the end information indicating that the predetermined event has ended and the facility are present. Is acquired. When the generation information is acquired, the facility indicated by the generation information is selected as a subject to be photographed until the end information indicating the same facility as the facility indicated by the generation information is acquired. And when the said period overlaps with several installations, the installation with a high priority is selected as imaging | photography object.

  Here, the predetermined event includes, for example, that the equipment has been stopped by an operator's operation (manual stop), and that the equipment has been stopped due to an abnormality (abnormal stop).

  As a result, even when the periods to be selected as shooting targets overlap, it is possible to select the shooting target based on the priority order.

  If the priority of equipment having a high probability of performing maintenance work is set higher, the equipment having a high probability of performing maintenance work can be selected as equipment to be imaged.

  In addition, since a facility with a high probability of performing maintenance work can be determined as a subject to be photographed, it is possible to perform photographing focusing on the facility. Therefore, it is not necessary to check each facility or install a camera for each facility in a state where the entire production line is photographed because the facility where the maintenance work is performed is unknown.

  In the photographing target selection device according to the present invention, it is preferable that the equipment indicated by the generated information with a later time acquired by the information acquisition unit is set to be higher.

  According to said structure, the said priority order becomes high in the installation which the generation | occurrence | production information which acquired time is late among the generation | occurrence | production information which the said information acquisition means acquired.

  Therefore, the photographing target determining unit selects, as the equipment to be photographed, the facility indicated by the generated information with the acquired time out of the generated information acquired by the information acquiring unit.

  And the equipment which the generation | occurrence | production information with the acquired late time shows the high probability that the maintenance worker is performing the maintenance work most. Therefore, the probability that maintenance work can be photographed can be improved.

  The imaging target device according to the present invention includes an information storage unit that stores predetermined information for each facility, and the imaging target selection unit refers to the predetermined information stored in the information storage unit. The priority order may be determined.

  According to said structure, it comprises the information storage part which memorize | stored predetermined information for every said installation, The said imaging | photography target selection means refers to the said predetermined information memorize | stored in the said information storage part, and Determine priority.

  Thereby, since the priority is determined with reference to predetermined information stored for each facility stored in the information storage unit, various information for each facility can be used as an element for determining the priority.

  In the photographing target selection device according to the present invention, the predetermined information stored in the information storage unit indicates a location of the facility on the production line, and the photographing target selection means includes the predetermined information. Referring to the generation information acquired by the information acquisition means, the location of the equipment indicated by the generation information acquired immediately before is determined from the location of the equipment indicated by the generation information acquired immediately before the generation information. When it is determined that it is within the range, it is preferable that the equipment to be imaged is not changed.

  Here, within the predetermined range, for example, when the camera is photographing a certain facility, a range that appears in the same image can be exemplified.

  According to the above configuration, the photographing target determining unit is configured such that, among the generation information acquired by the information acquisition unit, the facility indicated by the generation information acquired immediately before is the generation information acquired immediately before the generation information. If it is within a predetermined range from the location of the equipment shown, the equipment to be imaged is not changed.

  Therefore, the equipment indicated by the occurrence information acquired immediately before is left as a subject of photographing. On the production line, equipment that is currently within a specified range from the location of the equipment to be photographed is likely to be captured even in the current photographing state, and is maintained with equipment that is within the predetermined range. Even if work has been performed, there is a high possibility that the maintenance work has been photographed.

  Therefore, it is possible to prevent the process of determining the imaging target again from being performed even though the equipment is being imaged in the current state.

  In addition, when a facility that is within a predetermined range from the location of the facility currently being photographed is manually stopped on the production line, the manual stop is not an abnormality of the facility, but is a facility that is currently being photographed ( In other words, there is a possibility that the work (product on the production line) does not flow into the currently stopped facility.

  Even in this case, equipment that has a high possibility that maintenance work will not be performed is not determined as an object to be photographed, and therefore equipment that is unlikely to perform maintenance work is selected as an object to be photographed. Can be prevented.

  On the production line, equipment that is presently in the vicinity of the equipment to be photographed is highly likely to be reflected even in the current photographing state, and maintenance work is performed on equipment that is present in the vicinity. Even if it is, there is a high possibility that the maintenance work has been taken. Therefore, there is a low possibility that an adverse effect that the maintenance work is not photographed by not changing the photographing target.

  In the imaging target selection device according to the present invention, the predetermined information stored in the information storage unit corresponds to a processing time required from the start to the end of the process for the production target in each facility. It may be information.

  According to the above configuration, the priority order is determined with reference to information corresponding to the processing time in the production line. Therefore, if the priority of equipment having a long processing time is increased, the photographing target determining means determines the equipment having a long processing time in the production line as the equipment to be photographed.

  And the equipment with a long processing time in the production line will greatly reduce the productivity of the production line if the equipment is stopped for a long time. Therefore, there is a high probability that maintenance workers preferentially perform maintenance work on equipment with a long processing time on the production line.

  Therefore, the probability that maintenance work can be photographed can be improved.

  In the photographing object selection device according to the present invention, the predetermined information stored in the information storage unit can perform normal processing by performing recovery processing after the failure occurs when the equipment fails. It may be information corresponding to the recovery time, which is the time until.

  According to said structure, the said priority is determined with reference to the information equivalent to the said restoration time of an installation. Therefore, if the priority of equipment having a long recovery time is increased, the imaging target determining means determines the equipment whose imaging target is the equipment having a long recovery time. Since equipment with a long recovery time is equipment that takes time to recover, a maintenance worker may preferentially perform maintenance work.

  Therefore, the probability that maintenance work can be photographed can be improved.

  Note that the recovery time may be the one that stores the recovery time of the equipment by default, or the average of the past recovery times is calculated and the calculated average recovery time is stored. May be.

  In the photographing object selection device according to the present invention, time-series image data photographed by the camera is recorded as image data during a period when a specific equipment is selected as a photographing object among a plurality of equipments included in the production line. It is preferable to include a recording control means for performing control for recording in the recording unit and not recording during other periods.

  According to the above configuration, the recording control unit is configured to display time-series image data captured by the camera during a period in which a specific facility is selected as an imaging target among a plurality of facilities included in the production line. Control is performed in which data is recorded in the data recording unit and is not recorded except during the period.

  As a result, an image is recorded in the image data recording unit only during a period in which specific equipment is selected as a subject to be photographed. And, for example, when the predetermined event is “manual stop”, images from the time when the equipment is manually stopped until the manual stop is released are recorded, so that the maintenance worker is performing maintenance work. Only possible images can be recorded.

  Therefore, since recording is not performed when maintenance work is not performed, use of the storage capacity of the image data recording unit can be suppressed.

  In the imaging target selection device according to the present invention, in addition to a period during which a specific facility is selected as an imaging target among a plurality of facilities included in the production line, the information acquisition unit acquires end information, Recording means for recording time-series image data taken by the camera in the image data recording unit for a period until the time elapses, and performing control not to record other than the period. Also good.

  According to said structure, the said video recording control means acquired the completion | finish information in addition to the period when the specific equipment is selected as imaging | photography object among the some equipment contained in the said production line. Thereafter, during a period until a predetermined time elapses, time-series image data photographed by the camera is recorded in the image data recording unit, and control is performed not to record other than the period.

  As a result, the recording does not end immediately after the end information is acquired. Therefore, when the equipment is operated for a while after the maintenance work is completed and the maintenance work is resumed, it can be recorded as a series of maintenance work without repeating the start and the recording.

  In the imaging target selection device according to the present invention, in addition to a period during which a specific facility is selected as an imaging target among a plurality of facilities included in the production line, the information acquisition unit is predetermined from when the generation information is acquired. Recording time-series image data photographed by the camera in a period that lasts by the time, and recording control means for performing control that does not record other than the period is recorded in the image data recording unit. .

  According to the above configuration, the recording control unit acquires the occurrence information in addition to the period during which a specific facility is selected as a subject of photographing among the plurality of facilities included in the production line. The time-series image data captured by the camera is recorded in the image data recording unit for a period retroactive by a predetermined time, and control other than that period is not recorded.

  As a result, image data from when the occurrence information is acquired is recorded for a predetermined time. Therefore, the situation of the facility can be recognized before a predetermined event occurs.

  In the photographing target selection device according to the present invention, the recording control means, when a period during which a specific facility is selected as a photographing target among a plurality of facilities included in the production line is less than a predetermined time, The time series image data photographed by the camera may not be recorded in the image data recording unit.

  According to the above configuration, the recording control unit captures images with the camera when a period during which a specific facility is selected as an object to be imaged among a plurality of facilities included in the production line is less than a predetermined time. The recorded time series image data is not recorded in the image data recording unit.

  Thereby, image data is not recorded, when the period when the specific installation is selected as imaging object is less than predetermined time. When the period during which a specific facility is selected as an object to be photographed is less than a predetermined time, that is, when the stop time of the facility is less than the predetermined time, it is considered that maintenance work is not important.

  Therefore, since image data that is considered not to be maintenance work is not recorded, the storage capacity of the image data recording unit can be reduced. In addition, when searching for desired image data from recorded image data, unnecessary image data does not exist, so that the search can be performed more easily.

  In the photographing target selection device according to the present invention, when there are a plurality of the cameras for the production line, and the photographing target selection unit is configured so that the plurality of cameras overlap each other when the period overlaps with a plurality of facilities. It may be determined whether or not each of a plurality of equipment with overlapping periods can be photographed, and if it is determined that the equipment can be photographed, all of the plurality of facilities may be selected as photographing objects.

  According to the above configuration, when the period overlaps with a plurality of facilities, the imaging target selection unit determines whether each of the plurality of facilities with the periods overlapped can be captured with each of the plurality of cameras. If it is determined that photographing is possible, all of the plurality of facilities are selected as photographing targets.

  As a result, even if there are a plurality of facilities having overlapping periods to be selected as shooting targets, if the plurality of cameras can each shoot, each of the plurality of facilities can be photographed.

  The photographing target selection device may be realized by a computer, and in this case, a control program for the photographing target selection device that realizes the photographing target selection device by the computer by causing the computer to operate as the respective means. And a computer-readable recording medium on which it is recorded also fall within the scope of the present invention.

  As described above, the imaging target selection device according to the present invention is that a predetermined event has occurred in any of the plurality of facilities, occurrence information indicating the facility, and that the predetermined event has been completed. Information acquisition means for acquiring the end information indicating the equipment, and when the information acquisition means acquires the occurrence information, the period until the end information indicating the same equipment as the equipment indicated by the occurrence information is acquired. In addition to selecting the facility indicated by the information as a subject to be photographed, and a plurality of facilities overlapping the above period, the subject matter selecting means for selecting a facility having a high priority as a subject to be photographed is provided.

  Further, according to the control method of the photographing target selection device according to the present invention, a predetermined event has occurred in any of the plurality of facilities, occurrence information indicating the facility, and the predetermined event has been completed. And an information acquisition step for acquiring end information indicating the equipment, and a period until the end information indicating the same equipment as the equipment indicated by the generation information is acquired when the generation information is acquired in the information acquisition step. The method includes selecting a facility indicated by the information as a shooting target, and selecting a shooting target selection step as a shooting target when the period is overlapped by a plurality of facilities.

  As a result, even when the periods to be selected as shooting targets overlap, it is possible to select the shooting target based on the priority order.

  If the priority of equipment having a high probability of performing maintenance work is set higher, the equipment having a high probability of performing maintenance work can be selected as equipment to be imaged.

  In addition, since a facility with a high probability of performing maintenance work can be determined as a subject to be photographed, it is possible to perform photographing focusing on the facility. Therefore, it is not necessary to check each facility or install a camera for each facility in a state where the entire production line is photographed because the facility where the maintenance work is performed is unknown.

1, showing an embodiment of the present invention, is a block diagram illustrating a main configuration of a maintenance work recording apparatus. FIG. It is a figure which shows the outline | summary of the whole maintenance work recording system in the said embodiment. It is a figure which shows the state which looked at the production line in the said embodiment from the top. It is a figure which shows the example of a table memorize | stored in the imaging | photography object determination information storage part in the said embodiment. It is a figure which shows the example of a table memorize | stored in the camera direction control information storage part in the said embodiment. In the said embodiment, it is explanatory drawing which shows the relationship between the installation by which the stop button was pushed, and the installation used as imaging | photography object. In the said embodiment, it is explanatory drawing in the case of determining a photographic subject by cycle time. In the said embodiment, it is explanatory drawing which shows the relationship between a surplus recording, minimum recording, and a stop of an installation. It is a figure which shows the example of a table memorize | stored in the picked-up image memory | storage part in the said embodiment. It is a flowchart which shows the flow of a process of the maintenance work recording device in the said embodiment. It is a flowchart which shows the flow of a process of the maintenance work recording device in the said embodiment. FIG. 10 is a block diagram illustrating another embodiment of the present invention and showing a configuration of a main part of a maintenance work recording apparatus. In the other embodiment, it is a diagram showing a relationship between abnormal stop of equipment, pressing of a stop button, and image data stored in a captured image storage unit. It is a flowchart which shows the flow of a process of the maintenance work video recording apparatus in said other embodiment. It is a flowchart which shows the flow of a process of the maintenance work video recording apparatus in said other embodiment.

[Embodiment 1]
An embodiment of the present invention will be described below with reference to FIGS.

(Overview of the entire system)
First, an overview of the entire maintenance work recording system 100 according to the present embodiment will be described with reference to FIGS. As shown in FIG. 2, a maintenance work recording system 100 includes a maintenance work recording device (photographing target selection device) 1, network cameras 2 (2 a, 2 b), equipment 3 (3 a to 3 r), and PLC (Programmable Logic Controller) 4. (4a-4r) and a hard disk recorder (image data recording unit) 5.

  FIG. 3 is a diagram showing the production line 6 as viewed from above. As shown in FIG. 3, the production line 6 has a U-shape when viewed from above, and the facilities 3a to 3r are arranged in this order. In FIG. 3, the broken line indicates the range that is to be imaged when the network cameras 2 a and 2 b are facing the direction shown in the figure, and the solid line indicates the facility that is the imaging object that the network cameras 2 a and 2 b are responsible for. Indicates the range.

  The network cameras 2a and 2b are cameras for photographing the equipment 3, and the maintenance work recording apparatus 1 can control the photographing direction, zoom, and the like. In the initial setting, the network cameras 2a and 2b are configured to copy all the facilities 3 existing in their respective ranges. Under the control of the maintenance work recording apparatus 1, the network cameras 2a and 2b copy the facilities 3 to be photographed. The control of the network camera 2 by the maintenance work recording apparatus 1 can be performed, for example, via TCP / IP (Transmission Control Protocol / Internet Protocol). Note that the network camera 2a and 2b are referred to as the network camera 2 when it is not necessary to distinguish between them.

  The equipments 3a to 3r are equipment for carrying out processes necessary for producing products (workpieces) arranged on the production line 6 and produced on the production line 6. In addition, when it is not necessary to distinguish each of the facilities 3a-3r, it is set as the facility 3.

  The PLCs 4a to 4r are devices for controlling the facilities 3a to 3r, respectively. As in the case of the facility 3, when it is not necessary to distinguish the PLCs 4a to 4r, the PLC 4 is used.

  The PLC 4 has a start / stop button 41 (41a to 41r) for starting and stopping the equipment 3, and a warning light 42 (42a) for notifying the worker of the occurrence of an abnormality when the equipment 3 is abnormal. To 42r) and an abnormal stop detection unit 43 (43a to 43r) for detecting that the facility 3 has stopped abnormally.

  The hard disk recorder 5 temporarily stores images taken by the network camera 2.

  Then, maintenance work when the equipment 3 is stopped is the occurrence of an abnormality in the equipment 3 (detection of an abnormal stop) → the on-site worker presses the manual stop button of the equipment 3 that has stopped abnormally → maintenance work → start button to restore This is done by pressing the button.

  As shown in FIG. 3, in the maintenance work recording system 100, the network camera 2a is responsible for the equipments 3a to 3h as the photographing range, and the network camera 2b is responsible for the equipments 3g to 3r as the photographing range.

  And when abnormality, such as a failure, occurs in the plurality of facilities 3 among the facilities 3a to 3r, the maintenance work recording device 1 appropriately selects the facility 3 having a high probability that the maintenance worker performs the work, By causing the network camera 2 to photograph the equipment 3, the maintenance work of the maintenance worker can be reliably recorded.

  As a result, the maintenance work is recorded reliably, so it is possible to convey the technology that is difficult to convey with words alone from person to person in an easy-to-understand manner.

  In addition, by reliably recording the status of work content at the manufacturing site, it is possible to analyze the work content using video, and to build standard work procedures for equipment maintenance and improve the skills of field workers .

  In addition, by checking the work skills of newcomers, comparing the differences in work content between skilled and newcomers, making them understand the intuition / knack of work that newcomers lack, and clarifying work procedures, Work efficiency can be improved.

  In the present embodiment, two network cameras 2 and 18 facilities 3 in the production line 6 are described. However, the present invention is not limited to this configuration. The number of network cameras 2 may be one or three or more. Further, the number of facilities 3 may be any number as long as it is plural.

(Configuration of maintenance work recording device)
Next, the configuration of the maintenance work recording apparatus 1 will be described with reference to FIG. FIG. 1 is a block diagram of a maintenance work recording apparatus 1 according to the present embodiment.

  As shown in FIG. 1, the maintenance work recording apparatus 1 includes a control unit 10, an imaging target determination information storage unit (information storage unit) 11, a captured image storage unit (image data recording unit) 12, and a camera direction control information storage unit 13. The operation unit 14 and the display unit 15 are included.

  The control unit 10 performs various controls of the maintenance work recording apparatus 1. Details of the control unit 10 will be described later.

  The shooting target determination information storage unit 11 stores information used by the shooting target determination unit 102 to determine the equipment 3 to be shot. Examples of information stored in the imaging target determination information storage unit 11 include average recovery time, location, and cycle time. The average recovery time is the average of the time required until the facility 3 has recovered from an abnormality in the past. The location indicates at which position of the production line 6 the equipment 3 is located and which equipment 3 is the equipment on the production line 6. The cycle time indicates how much time the processing performed by the facility 3 takes.

  An example of the information table 31 stored in the photographing target determination information storage unit 11 is shown in FIG. In the case of the example shown in FIG. 4, the equipment 3 a is provided at the location “1” of the production line 6, the cycle time is 3 minutes, and the average recovery time is 5 minutes. 2 ”, the cycle time is 8 minutes, and the average recovery time is 10 minutes. The same applies to the equipment 3c and below. In addition, as for the number indicating the location, it is assumed that the number and the location in the production line 6 are associated in advance.

  The captured image storage unit 12 stores an image acquired from the hard disk recorder 5 and captured by the network camera 2 in association with the imaging time and imaging equipment.

  The camera direction control information storage unit 13 stores information for the camera direction control unit 103 to control the direction of the network camera 2 and the like. Specifically, it is stored which network camera 2 is used for which direction and how much zooming is performed. An external view of the network camera 2 to be controlled by the camera direction control information storage unit 13 is shown in FIG. As illustrated, the network camera 2 can move the lens in the vertical direction and the horizontal direction, and also has a zoom function.

  An example of the information table 32 stored in the camera direction control information storage unit 13 is shown in FIG. In the case of the example shown in FIG. 5B, in order to photograph the equipment 3a, the network camera a has a vertical angle of “34.6”, a horizontal angle of “−30.7”, and a zoom of “× 1. 7 ”, and in order to photograph the equipment 3b, the network camera“ a ”has a vertical angle of“ 22.1 ”, a horizontal angle of“ −17.4 ”, and a zoom of“ × 2.3 ”. It is necessary to be in the state. The same applies to the equipment 3c and below.

  The operation unit 14 is a user interface that receives an operation on the maintenance work recording apparatus 1 by the user.

  The display unit 15 displays the captured image stored in the captured image storage unit 12. The display unit 15 may be implemented by any device as long as it can display information. Specific examples include a liquid crystal display, an organic EL (Electro Luminescence) display, and a plasma display. Is mentioned.

  Next, the control unit 10 will be described. As shown in FIG. 1, the control unit 10 includes a signal acquisition unit (information acquisition unit) 101, an imaging target determination unit (imaging target determination unit) 102, a camera direction control unit 103, a recording control unit (recording control unit) 104, an image. The configuration includes a data acquisition unit 105, an image data recording control unit 106, an average recovery time calculation unit (average recovery time calculation unit) 107, an image data search unit 108, and a display control unit 109.

  The signal acquisition unit 101 indicates a stop signal (occurrence information) indicating that the stop button has been pressed or that an abnormal stop has been detected, and the equipment in which the button has been pressed or the facility in which the abnormal stop has been detected. Signal information including equipment information is acquired. The signal acquisition unit 101 acquires signal information including an activation signal (end information) indicating that the activation button has been pressed and facility information indicating the facility in which the button has been pressed. Then, the acquired signal information is transmitted to the imaging target determination unit 102, the recording control unit 104, and the average recovery time calculation unit 107.

  The imaging target determination unit 102 acquires signal information from the signal acquisition unit 101, determines the equipment 3 with a high priority as the equipment 3 to be imaged, and determines the network camera 2 that should capture the equipment 3 Is. Then, information indicating the determined equipment 3 and the network camera 2 to be photographed is transmitted to the camera direction control unit 103.

  The priority used for determining the equipment 3 to be imaged is the time when the signal information is acquired (that is, the time when the stop button is pressed), the location of the equipment 3 stored in the imaging object determination information storage unit 11, It is determined by at least one of cycle time and average recovery time.

  For example, when the equipment 3 to be imaged is determined using the push button time, if the stop button is pressed by two or more equipments 3 within the range of one network camera 2, the equipment pushed at a later time 3 is determined as an imaging target. This will be described with reference to FIG. FIG. 6 is an explanatory diagram showing the relationship between the equipment 3 whose stop button is pressed and the equipment 3 that is the photographing target when the equipment 3 that is the photographing target is determined using the push button time.

As shown in FIG. 6, firstly, the manual stop button equipment 3q at time t ₁ is pressed, the network camera 2b responsible for equipment 3q is oriented at facilities 3q, starts shooting at time t _2. Then, when the stop button of equipment 3a is pressed at time t _3, the network camera 2a responsible for equipment 3a is oriented at facilities 3a, starts shooting at time t _4.

Then, at time t _5, when the stop button of equipment 3m is pressed, the network camera 2b in charge of the equipment 3m is a shooting direction change from the equipment 3q to equipment 3m, starts photographing equipment 3m at time t ₆ . Then, at time t _7, be released stop button of the equipment 3q is, network camera 2b continues the shooting of equipment 3m. Then, at time t _8, the stop button of the equipment 3m is released, at time t ₁₀ after a lapse of a predetermined time, and terminates the imaging equipment 3m.

Further, when the stop button of equipment 3a at time t ₉ is released, at time t ₁₁ after a predetermined time elapses, the network camera 2a ends the photographing equipment 3a.

Then, when the stop button of equipment 3m at time _{t 12} is pressed, the network camera 2b is oriented at facilities 3m, at time _{t 13,} it starts photographing equipment 3m. Then, at time _{t 14,} when the stop button of equipment 3q is pressed, the network camera 2b changes the photographing direction from the facility 3m to equipment 3q, it starts photographing equipment 3q at time _{t 15.}

Although the details will be described later, as in the time t ₁₄ from the time t _13, the time that shooting one facility 3 is less than the predetermined time, the image data taken in the time from the captured image storage unit 12 Erased.

Then, at time t _16, when the stop button of equipment 3q is released, and ends the shooting equipment 3q at time t ₁₇ after a predetermined time. Then, because the stop button stop button of the pressed equipment 3m is not released before the stop button of the equipment 3q is pressed, the network camera 2b, the direction the direction of the equipment 3m, starts shooting at time t ₁₈ To do. Then, at time t _19, when the stop button of equipment 3m is released, and ends the shooting equipment 3m at time t ₂₀ after a predetermined time.

As described above, imaging equipment 3m at time t ₂₀ from the time t _18, since less than a predetermined time, the image data captured is erased from photographed image storage unit 12.

  As described above, a facility with a high probability of having a maintenance worker can be determined as an object to be photographed, and the maintenance work can be photographed more reliably.

  In addition, when determining the facility to be imaged using the average recovery time, the facility 3 having a long average recovery time is determined as the imaging target. This is because there is a high possibility that the recovery time will be long, and thus there is a high possibility that maintenance workers will preferentially perform maintenance.

  In addition, when the facilities before and after the currently stopped facility are manually stopped, the shooting target is not changed. This is because it is considered that the stop button has been pressed in order to prevent the work from entering the currently stopped facility. Moreover, it is because there is a high possibility that the front and rear facilities are within the shooting range of the network camera 2 without changing the shooting target.

  In addition, the cycle time is determined as an object to be photographed that is closest to the facility having the longest cycle time. Alternatively, one process is performed with a plurality of facilities, and when there are a plurality of processes, an facility close to a process with a long cycle time is determined as an imaging target. In addition, among facilities included in a process having a long cycle time, a facility close to a facility having a long cycle time in the process is determined as an imaging target. This is because, when a process with a long cycle time is stopped, the number of productions in the production line is greatly reduced, and therefore, maintenance work is performed with higher priority on equipment close to a process with a long cycle time.

  This will be described with reference to FIG. FIG. 7 is an explanatory diagram in the case where the imaging target is determined based on the cycle time. In the case of the example shown in FIG. 7, facilities 3a, 3b, and 3c are included in step 1, and the cycle times are 3 minutes, 8 minutes, and 5 minutes, respectively. In addition, facilities 3d, 3e, 3f, and 3g are included in step 2, and the cycle times are 2 minutes, 15 minutes, 6 minutes, and 7 minutes, respectively. Moreover, the equipment 3h is included in the process 3, and the cycle time is 9 minutes.

  In this example, when the equipment 3b and the equipment 3f are stopped, the equipment 3b is an object to be photographed when the photographing target is determined depending on the cycle time of the equipment. In addition, when the imaging target is determined based on the cycle time of the process, the equipment 3f included in the process 2 is the imaging target.

  In addition, when the equipment 3d and the equipment 3g are stopped and the equipment closest to the equipment with the longest cycle time is determined as the subject of photographing, the equipment 3d becomes the subject of photographing.

In addition, even when the shooting target determination unit 102 acquires stop information and determines a shooting target and then acquires stop information again, the equipment 3 indicated by each stop information can be shot with different network cameras 2. Determines the network camera 2 to be photographed so that the different network camera 2 performs photographing as it is.
If you can shoot with a different network camera 2,
The camera direction control unit 103 acquires information indicating the equipment 3 to be photographed from the photographing target determination unit 102 and uses the control information stored in the camera direction control information storage unit 13 to identify the network camera 2 as the photographing target. Control is performed so that the facility 3 can be photographed.

  The recording control unit 104 acquires signal information from the signal acquisition unit 101 and controls recording to the hard disk recorder 5, and includes a time measurement unit 141, a short-time recording erasing unit (recording control unit) 142, and a recording The extension unit (recording control means) 143 is included. More specifically, the recording control unit 104 causes the hard disk recorder 5 to start recording upon acquiring signal information indicating manual stop, and causes the hard disk recorder 5 to stop recording upon acquiring signal information indicating activation. .

  The time measuring unit 141 measures the time between the acquired signal information indicating the stop and the signal information indicating the start, the elapsed time after acquiring the signal information indicating the start, and the like.

  When the time between the acquired signal information indicating stop and signal information indicating activation measured by the time measuring unit 141 is equal to or shorter than a predetermined time (minimum recording time), 5 to erase the recorded image data (minimum recording).

  This is because if the time between the acquired signal information indicating the stop and the signal information indicating the start is equal to or shorter than a predetermined time, the maintenance work is often not important and there is not much meaning to leave the recorded data. .

  The video recording extension unit 143 stops the video recording after a predetermined time (extra video recording time) has elapsed after acquiring signal information indicating activation (extra video recording). In this case, in the equipment 3, there is a case where the operation signal is pressed and the operation is confirmed for a while and then it is stopped again to perform maintenance work. Therefore, in this case, the stop and start of recording are prevented from being repeated. is there. However, if the time when the signal information indicating activation is acquired does not exceed the minimum recording time from the time when the signal information indicating stop is acquired, extra recording is not executed.

  Here, margin recording and minimum recording will be described with reference to FIG. FIG. 8 is an explanatory diagram showing the relationship between margin recording and minimum recording and the stop of the equipment 3a. In FIG. 8, T2 indicates an extra recording time, and T3 indicates a minimum recording time.

As shown in FIG. 8, the stop button of equipment 3a at time t ₅₁ is pressed, the network camera 2a is oriented at facilities 3a, starts photographing equipment 3a at time t _52. When the stop button equipment 3a is released at time t _53, would otherwise ends the shooting at time t ₅₅ which has elapsed T2 from the time point. However, since again stop button equipment 3a before time t ₅₄ at time t ₅₅ is pressed, the network cameras 2a, without stop recording equipment 3a, continues.

Then, at time _{t 56,} when the stop button of equipment 3a is released, the network cameras 2a is a time _{t 57} that has elapsed from the time _{t 56} by T2, and ends the shooting.

Then, at time _{t 58,} when the stop button of equipment 3a is pressed, the network cameras 2a is oriented at facilities 3a, starts shooting at time _{t 59.} Then, when the stop button of the equipment 3a at the time _{t 60} is released, from the time _{t 59} to _{t 60,} it does not meet the minimum recording time T3, network camera 2a terminates the shooting at the time _{t 60.} Also, the image data taken from time t ₅₉ to t ₆₀ is erased by the short-time recording erasure unit 142.

When the stop button equipment 3a is pressed at time _{t 61,} the network camera 2a is oriented at facilities 3a, starts shooting at time _{t 62.} Then, when the stop button of equipment 3a at time _{t 63} is released, at time _{t 64} has elapsed from the time _{t 62} only margin recording time T2, the network camera 2a ends the shooting.

  The image data acquisition unit 105 acquires image data stored in the hard disk recorder 5. Then, the acquired image data is transmitted to the image data recording control unit 106.

  The image data recording control unit 106 stores the captured image in association with the image data, the imaging target equipment, and the imaging time from the image data acquired from the image data acquisition unit 105 and the signal information acquired from the imaging target determination unit 102. This is stored in the unit 12.

  The average recovery time calculation unit 107 calculates the recovery time from the stop signal and start signal indicated by the signal information acquired from the signal acquisition unit 101. Then, the average recovery time including the current recovery time is calculated using the average recovery time stored in the imaging target determination information storage unit 11 and stored in the imaging target determination information storage unit 11.

  The image data search unit 108 searches for image data stored in the captured image storage unit 12 instructed by the user via the operation unit 14. The search result is acquired and transmitted to the display control unit 109.

  The search for the image data can be performed based on the equipment 3 to be photographed, the network camera 2 that photographed, and the photographing time. This will be described with reference to FIG. FIG. 9 is a diagram illustrating a table stored in the captured image storage unit 12.

  In the table shown in FIG. 9, for example, when “image data obtained by photographing the equipment 3a” is searched, image data indicated by 901 and 904 are acquired as search results. When “image data photographed by the network camera 2” is searched, the image data indicated by 902 is acquired as a search result. When “image data from 10:15 to 10:20 on September 1, 2008” is searched, the image data indicated by 901 and 902 are acquired as search results.

  The display control unit 109 causes the display unit 15 to display image data that is a search result acquired from the image data search unit 108.

  Next, the flow of processing in the maintenance work recording apparatus 1 will be described using the flowcharts shown in FIGS.

  First, when the signal acquisition unit 101 acquires signal information (stop signal information) including a stop signal (S1), the shooting target determination unit 102 enters a shooting target determination process (S2). The photographing target determination process will be described later. When the shooting target determination process is completed, the network camera 2 starts shooting, and the recording control unit 104 causes the hard disk recorder 5 to start recording (S3).

  Thereafter, when the signal acquisition unit 101 acquires stop signal information of the equipment 3 having a higher priority than the equipment 3 to be imaged (YES in S4), the image data storage process A is entered (S5). The image data storage process A will be described later. When the image data storage process A is completed, the shooting target determination process is started (S6). When the photographing target determination process is completed, the process returns to step S4.

  On the other hand, the signal acquisition unit 101 does not acquire stop signal information of the equipment 3 having a higher priority than the equipment 3 to be imaged (NO in S4), and generates a start signal for the equipment 3 to be imaged. When the signal information (start signal information) is acquired (YES in S7), the image data storage process B is entered (S8). The image data storage process B will be described later.

  And the imaging | photography object determination part 102 judges whether the stop signal information of the installation 3 which has not acquired activation signal information is acquired (S9), and if it has acquired (it is YES at S9), step The process returns to the shooting target determination process in S6.

  On the other hand, if the stop signal information of the equipment 3 that has not acquired the start signal information has not been acquired (NO in S9), the camera direction control unit 103 returns the direction of the network camera 2 to the default and also the recording control unit 104. Stops the recording of the hard disk recorder 5 (S11). Thus, the process flow in the maintenance work recording apparatus 1 is completed.

  Next, the shooting target determination process, the image data storage process A, and the image data storage process B will be described with reference to FIG.

  As shown in FIG. 11A, when the photographing target determining process is started, the photographing target determining unit 102 determines the equipment 3 having a high priority as the equipment 3 to be photographed (S21). Then, the camera direction control unit 103 controls the direction of the network camera 2 and the like so that the facility 3 determined by the imaging target determination unit 102 can be captured (S22). Thus, the photographing target determination process ends.

  As shown in (b) of FIG. 11, when the image data storage process A is entered, the recording control unit 104 determines whether or not the time during which the equipment 3 to be imaged was captured is within a predetermined time. Judgment is made (S41). If it is within the predetermined time (YES in S41), the short time recording erasure unit 142 erases the image data of the facility 3 that has been photographed as the subject of photographing, assuming that the minimum recording time is not satisfied (S43). On the other hand, if the predetermined time is exceeded (NO in S41), the image data recording control unit 106 stores the image data of the facility 3 that has been imaged as the imaging target in the captured image storage unit 12 (S42). Thus, the image data saving process A ends.

  As shown in FIG. 11C, when the image data storage process B is entered, the recording control unit 104 determines whether or not the time during which the equipment 3 to be imaged was captured is within a predetermined time. Judgment is made (S61). If it is within the predetermined time (YES in S61), the short time recording erasure unit 142 erases the image data of the facility 3 that has been photographed as the subject of photographing, assuming that the minimum recording time is not satisfied (S66).

  On the other hand, if it is not within the predetermined time (NO in S61), the recording control unit 104 determines whether or not a predetermined time has elapsed since the activation signal information of the equipment 3 to be imaged is obtained ( S62). If the predetermined time has elapsed (YES in S62), the image data recording control unit 106 causes the captured image storage unit 12 to store the image data of the facility 3 that has been captured (S63). If the stop signal information of the equipment 3 to be imaged is acquired (YES in S64) before the predetermined time has elapsed (NO in S62), the process returns to step S4. Thus, the image data storage process B ends.

[Embodiment 2]
The following will describe another embodiment of the present invention with reference to FIGS. For convenience of explanation, members having the same functions as those shown in the first embodiment are given the same reference numerals, and explanation thereof is omitted.

  The present embodiment is different from the first embodiment in that recording by the hard disk recorder 5 is continued. That is, in the present embodiment, the hard disk recorder 5 does not start or end the recording in accordance with an instruction from the maintenance work recording apparatus 1, and continues the recording.

  FIG. 12 is a block diagram showing a main configuration of the maintenance work recording apparatus 1 according to the present embodiment. Unlike the above embodiment, in this embodiment, the recording control unit 104 does not exist, and an image data acquisition unit 115 is provided instead of the image data acquisition unit 105.

  The image data acquisition unit 115 acquires image data recorded by the hard disk recorder 5 based on the signal information acquired from the signal acquisition unit 101.

  Specifically, image data from the time when the stop signal information is acquired to the time when the start signal information is acquired is acquired. Then, the acquired image data is transmitted to the image data recording control unit 106. Note that the acquired image data may not be image data from the time when the stop signal information is acquired, but may be image data from a predetermined time (preceding recording time) before that time (preceding recording). As a result, the entire view of the production line 6 is captured, but it can be confirmed from the situation before the stop button is pressed.

  Further, instead of the stop signal information, a signal indicating that the facility 3 itself has stopped abnormally may be acquired, and image data from a predetermined time before the time when the signal is acquired may be acquired.

  This point will be described with reference to FIG. FIG. 13 is a diagram illustrating the relationship between the abnormal stop of the equipment 3 a, pressing of the stop button, and image data stored in the captured image storage unit 12.

As shown in FIG. 13 (a), at time _{t 82,} when the obtaining the abnormal stop signal equipment 3a, the image data acquisition unit 115, from the preceding recording time T4 just before time _{t 81} from the time _{t 82} Get image data. Then, the released stop button, acquires image data up to time t ₈₉ to afford recording time has elapsed.

The video recorded in the image data is a full view of the production line 6 from time t ₈₁ to time t ₈₃ when the stop button of the equipment 3a is pressed. _Then, from _{t 83,} until the time _{t 84} to the network camera 2a faces the equipment 3a is an image which is moving in the direction of the equipment 3a from the panoramic view of the production line 6. Then, from time _{t 84} to time _{t 89} is a video of the equipment 3a.

Note that, as shown in FIG. 13B, immediately after the equipment 3a is abnormally stopped, the photographing target of the network camera 2 may be the equipment 3a. In this case, the image is recorded in the image data, from the time t _81, to t ₈₂ is the time at which the equipment 3a is abnormally stopped is a panoramic view of the production line 6. _Then, from _{t 82,} until time _{t 83} to the network camera 2a faces the equipment 3a is a picture which is moving in the direction of the equipment 3a from full view of the production line 6. Then, from time _{t 83} to time _{t 89} is a video of the equipment 3a.

  Thereby, in the case of (a), it is possible to record the operation of the worker until the manual stop, and in the case of (b), the failure state of the equipment 3a before the worker starts the maintenance work is recorded. be able to. It should be noted that (a) and (b) can be selected according to the above-described purpose.

  Next, the flow of processing of the maintenance work recording apparatus 1 in the present embodiment will be described using the flowcharts shown in FIGS. The hard disk recorder 5 is in a state where recording is always performed.

  First, the network camera 2 captures the entire view of the production line 6 (S51). And if the signal acquisition part 101 acquires the signal information (stop signal information) containing a stop signal (it is YES at S52), it will start to an imaging | photography target determination process (S53). The photographing target determination process has the contents shown in FIG. When the imaging target determination process is completed and the signal acquisition unit 101 acquires stop signal information of the equipment 3 having a higher priority than the equipment 3 that is the imaging target (YES in S54), the image data storage process C is entered ( S55). The image data storage process C will be described later. When the image data storage process C is completed, the process returns to step S53.

  On the other hand, the signal acquisition unit 101 acquires signal information (activation signal information) including an activation signal without acquiring stop signal information of the facility 3 having a higher priority than the facility 3 to be photographed (NO in S54). If acquired (YES in S56), the image data storage process D is entered (S57). The image data storage process D will be described later. Then, when the image data storage process D ends, the imaging target determination unit 102 determines whether or not the stop signal information of the equipment 3 that has not acquired the start signal information has been acquired (S58). If so (YES in S58), the process returns to the shooting target determination process in step S53.

  On the other hand, if the stop signal information of the equipment 3 for which the start signal information has not been acquired has not been acquired (NO in S58), the camera direction control unit 103 takes a panoramic view of the production line 6 that defaults the direction of the network camera 2. The direction is restored (S59). Thus, the processing flow of the maintenance work recording apparatus 1 is completed.

  Next, the image data storage process C and the image data storage process D will be described with reference to FIG.

  As shown in FIG. 15A, when the image data storage process C is entered, the recording control unit 104 determines whether or not the time during which the equipment 3 to be imaged was captured is within a predetermined time. Judgment is made (S71). If the predetermined time is exceeded (NO in S71), the image data recording control unit 106 stores the image data of the facility 3 that has been imaged as the imaging target in the captured image storage unit 12 (S72). On the other hand, if it is within the predetermined time (YES in S71), the process is terminated as it is. Thus, the image data storage process C ends.

  As shown in (b) of FIG. 15, when the image data storage process D is entered, the recording control unit 104 determines whether a predetermined time has elapsed since acquiring the activation signal information of the equipment 3 to be imaged. It is determined whether or not (S91). If the predetermined time has elapsed (YES in S91), the image data recording control unit 106 stores the image data of the facility 3 that has been captured in the captured image storage unit 12 (S92). On the other hand, if the stop signal information of the equipment 3 to be imaged is acquired (YES in S93) before the predetermined time has elapsed (NO in S91), the process returns to step S4. Thus, the image data storage process D ends.

  In the above-described embodiment, the imaging target determination unit 102, the camera direction control unit 103, and the recording control unit 104 have been described as being included in the maintenance work recording apparatus 1. However, the present invention is not limited to this. The imaging target determining unit 102, the camera direction control unit 103, and the recording control unit 104 may be different devices, and may perform the above-described operations by transmitting and receiving the above-described information.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments can be obtained by appropriately combining technical means disclosed in different embodiments. The form is also included in the technical scope of the present invention.

  Finally, each block of the maintenance work recording apparatus 1, in particular, the control unit 10 and the control unit 20 may be configured by hardware logic, or realized by software using a CPU (central processing unit) as follows. May be.

  That is, the maintenance work recording apparatus 1 includes a CPU that executes instructions of a control program that realizes each function, a ROM (read only memory) that stores the program, a RAM (random access memory) that expands the program, the program, A storage device (recording medium) such as a memory for storing various data is provided. An object of the present invention is a recording medium in which program codes (execution format program, intermediate code program, source program) of a control program of the maintenance work recording apparatus 1 which is software for realizing the above-described functions are recorded so as to be readable by a computer. Can also be achieved by reading the program code recorded on the recording medium and executing it by the computer (or CPU or MPU (microprocessor unit)).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, a CD-ROM (compact disc read-only memory) / MO (magneto-optical) / Disk systems including optical disks such as MD (Mini Disc) / DVD (digital versatile disk) / CD-R (CD Recordable), card systems such as IC cards (including memory cards) / optical cards, or mask ROM / EPROM ( An erasable programmable read-only memory) / EEPROM (electrically erasable and programmable read-only memory) / semiconductor memory system such as a flash ROM can be used.

  Further, the maintenance work recording apparatus 1 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN (local area network), ISDN (integrated services digital network), VAN (value-added network), CATV (community antenna television) communication. A network, a virtual private network, a telephone line network, a mobile communication network, a satellite communication network, etc. can be used. In addition, the transmission medium constituting the communication network is not particularly limited. For example, IEEE (institute of electrical and electronic engineers) 1394, USB, power line carrier, cable TV line, telephone line, ADSL (asynchronous digital subscriber loop) line Wireless such as IrDA (infrared data association) and remote control such as remote control, Bluetooth (registered trademark), 802.11 wireless, HDR (high data rate), mobile phone network, satellite line, terrestrial digital network, etc. But it is available. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  Since it is possible to select and record equipment with a high probability that a maintenance worker is working on the production line, it is suitable for an apparatus for recording maintenance work on the production line equipment.

1 Maintenance work recording device (photographing object selection device)
2 Network camera 3 Equipment 5 Hard disk recorder (image data recording unit)
6 Production Line 11 Shooting Object Determination Information Storage Unit (Information Storage Unit)
12 Captured image storage unit (image data recording unit)
DESCRIPTION OF SYMBOLS 13 Camera direction control information storage part 14 Operation part 15 Display part 100 Maintenance work recording system 101 Signal acquisition part (information acquisition means)
102 Shooting target determining unit (shooting target determining means)
103 Camera direction control unit 104 Recording control unit (recording control means)
105 Image Data Acquisition Unit 106 Image Data Recording Control Unit 107 Average Recovery Time Calculation Unit (Average Recovery Time Calculation Unit)
108 Image data search unit 109 Display control unit 142 Short-time recording deletion unit (recording control means)
143 Recording extension (Recording control means)

Claims (14)

In a photographing target selection device that takes a plurality of facilities included in a production line as a photographing target and selects a facility that is a photographing target of the camera from the plurality of facilities,
Information acquisition means for acquiring that a predetermined event has occurred in any one of the plurality of facilities, occurrence information indicating the facility, completion information indicating that the predetermined event has ended, and end information indicating the facility; ,
When the information acquisition means acquires the occurrence information, a period until acquisition of end information indicating the same equipment as the equipment indicated by the occurrence information is selected as an object to be imaged, and a plurality of the periods are selected. An imaging target selection device comprising: an imaging target selection unit that selects an equipment with a high priority as an imaging target when they overlap with each other.   The imaging target selection device according to claim 1, wherein the priority is set so that the facility indicated by the generated information with a later time acquired by the information acquisition unit becomes higher. An information storage unit storing predetermined information for each facility is provided,
The imaging object selection device according to claim 1 or 2, wherein the imaging object selection unit sets the priority by referring to the predetermined information stored in the information storage unit. The predetermined information stored in the information storage unit indicates a place of the equipment on the production line,
The photographing target selecting unit refers to the predetermined information, and among the occurrence information obtained by the information obtaining unit, the location of the facility indicated by the occurrence information obtained immediately before is obtained immediately before the occurrence information. The imaging target selection device according to claim 3, wherein when it is determined that the location is within a predetermined range from the location of the equipment indicated by the generated information, the equipment to be imaged is not changed.   The predetermined information stored in the information storage unit is information corresponding to a processing time required from the start to the end of processing for a production object in each facility. Item 4. The photographing object selecting device according to Item 3.   The predetermined information stored in the information storage unit is a recovery time which is a time from when a failure occurs until a normal process can be performed after the failure occurs. The imaging object selection device according to claim 3, wherein the information is equivalent information.   During a period when a specific facility is selected as an imaging target among a plurality of facilities included in the production line, time series image data captured by the camera is recorded in an image data recording unit, and other than the period The imaging target selection device according to claim 1, further comprising a recording control unit that performs control not to record.   In addition to the period in which a specific facility is selected as a subject to be photographed among a plurality of facilities included in the production line, a period until a predetermined time elapses after the information acquisition unit acquires end information, 7. A recording control unit for recording time-series image data captured by a camera in an image data recording unit and performing control not to record other than that period. The imaging | photography target selection apparatus as described in an item.   In addition to the period in which a specific facility is selected as a subject for photographing among the plurality of facilities included in the production line, the camera is used for a period that is a predetermined time period after the information acquisition means acquires the generation information. 7. The recording apparatus according to claim 1, further comprising a recording control unit that records the captured time-series image data in an image data recording unit and performs control not to record other than the period. The imaging object selection device described.   The recording control means includes time-series image data photographed by the camera when a period during which a specific equipment is selected as a subject of photographing among a plurality of equipment included in the production line is less than a predetermined time. The photographic subject selection device according to claim 7, wherein control is performed so as not to record the image data in the image data recording unit. There are multiple cameras for the production line,
When the period is overlapped by a plurality of facilities, the shooting target selection unit determines whether each of the plurality of facilities having the same period can be shot by each of the plurality of cameras, and determines that the shooting can be performed. The imaging object selection device according to claim 1, wherein all of the plurality of facilities are selected as imaging objects.   An imaging object selection device control program for operating the imaging object selection device according to any one of claims 1 to 11, wherein the imaging object selection device control program causes a computer to function as each of the above means.   A computer-readable recording medium on which the photographing object selection device control program according to claim 12 is recorded. One camera is responsible for a plurality of facilities included in a production line as a subject to be photographed, and is a method for controlling a photographing target selection device that selects a facility to be photographed by the camera from the plurality of facilities,
An information acquisition step for acquiring a predetermined event that has occurred in any one of the plurality of facilities, occurrence information indicating the facility, completion information indicating that the predetermined event has ended, and end information indicating the facility; ,
When the generation information is acquired in the information acquisition step, a period until acquisition of end information indicating the same equipment as the equipment indicated by the generation information is selected as an imaging target, and a plurality of the periods are selected. And a photographing target selection step of selecting a facility having a high priority as a photographing target when the two facilities overlap.

Images