JP5637385B2 - Construction status recording system - Google Patents

Description

  The present invention relates to a construction status recording system that uses an imaging means such as a network camera to capture an image of a construction status at a construction site and check various progress statuses in the construction.

  Conventionally, in order to grasp the construction status at construction sites, a blackboard describing the construction date and time, construction location, construction details, etc. is photographed and managed together with the construction status for each division of construction status. It was. In such construction management, there is a time lag between the actual construction content and construction management, and it is difficult to confirm and grasp the construction status in real time. In addition, since it is a manual work, there is a case where a human error such as forgetting to record, it is difficult to grasp an accurate construction situation.

  In order to solve such problems in construction management, Patent Document 1 includes a camera installed at a construction site, a data storage unit for storing a process chart at the construction site, and a remote control of the camera. An on-site management system is disclosed that includes a server including a control unit that displays process results and displays a camera image and a process table on a terminal connected to the server via a communication line. Furthermore, in this patent document 1, it is possible to display the video of the camera displayed on the terminal as a plurality of frame images, and to simultaneously display the video from the plurality of cameras on one screen of the terminal.

  Further, Patent Document 2 discloses an assumed image in which an execution schedule state of a process at an arbitrary time point is viewed from an arbitrary viewpoint based on a captured image captured by a network camera capable of remotely controlling an imaging direction and plan information. Is disclosed for a process management apparatus. In this process management device, by displaying the captured image at the actual construction site and the assumed image from the viewpoint of the network camera, it is easy to compare the captured image with the assumed image without going to the actual construction site. It becomes possible to grasp the construction status.

JP 2002-175349 A JP 2010-55581 A

  By the way, in a large-scale construction site, the construction site is vast, and it is difficult to capture an image with one camera. In the techniques disclosed in Patent Literature 1 and Patent Literature 2, it is possible to photograph a spot of interest by controlling the operation of the camera, but the construction site other than the spot of interest is not photographed. In particular, when it is desired to look back at past imaging information, it is difficult to observe the entire construction site.

  Although it is conceivable to image the entire construction site with a single camera using a wide-angle lens, etc., observe the details of the area of interest, such as the limited number of pixels and the focal point position depending on the imaging area. I can't do it. In addition, as seen in Patent Document 1 and Patent Document 2, it is conceivable to capture the construction site with a plurality of cameras. However, since each camera has a different viewpoint, the imaging information of each camera is attached. At the same time, the construction status must be grasped, and construction management becomes a complicated task.

In order to solve the above-described problems, the construction status recording system according to the present invention is configured in such a manner that the construction site is divided into a plurality of imaging ranges in advance in the system for imaging the construction site by controlling the imaging means capable of changing the imaging position. A plurality of combined imaging on the time axis by combining an imaging control process for repeatedly executing an imaging turn for causing the imaging unit to sequentially capture a plurality of imaging positions that have been performed, and a plurality of imaging information captured at each imaging turn A synthesis process for generating information, a date / time tag determination process for determining a date / time tag based on the imaging date / time of at least one imaging information used at the time of synthesis for each composite imaging information, and designation by a designation unit Display output processing for displaying and outputting composite imaging information having a date / time tag corresponding to the designated date / time.

  Furthermore, the construction status recording system according to the present invention is characterized in that the display output processing changes a display range of the composite imaging information based on designation by the designation means.

  Furthermore, in the construction status recording system according to the present invention, the display output processing sequentially displays and outputs composite imaging information having a date / time tag corresponding to a specified time interval.

  Furthermore, in the construction status recording system according to the present invention, the display output process records the construction start time and the construction end time based on designation from the designation means when the composite imaging information is sequentially displayed and output. To do.

  Furthermore, the construction status recording system according to the present invention is characterized in that the search means simultaneously displays and outputs a plurality of composite imaging information having date and time tags corresponding to designated time intervals.

In addition, the construction status recording program according to the present invention is a program for imaging the construction site by controlling the imaging means capable of changing the imaging position, and a plurality of imagings set in advance by dividing the construction site into a plurality of imaging ranges. An imaging control process that repeatedly executes an imaging turn that causes the imaging unit to sequentially image a position, and a synthesis process that generates a plurality of composite imaging information on the time axis by combining a plurality of imaging information captured at each imaging turn For each combined imaging information, the date / time tag determination process for determining the date / time tag based on the imaging date / time of at least one imaging information used at the time of synthesis, and the specified date / time specified by the specifying means And a display output process for displaying and outputting composite imaging information having a date and time tag to be executed.

The figure which shows the structure of the construction condition recording system which concerns on embodiment of this invention. The figure which shows the imaging range of the network camera which concerns on embodiment of this invention. The figure which shows the network camera which concerns on embodiment of this invention. The figure which shows the mode of synthetic imaging information formation which concerns on embodiment of this invention. The time chart which shows the mode of the imaging information acquisition which concerns on embodiment of this invention. The figure which shows the composite imaging information in the time series which concerns on embodiment of this invention. The window figure which shows the continuous display of the composite imaging information which concerns on embodiment of this invention. The figure which shows the process display part which concerns on embodiment of this invention. The window figure which shows the display according to time of the composite imaging information which concerns on embodiment of this invention. The window figure which shows the calendar display of the synthetic imaging information which concerns on embodiment of this invention. The figure which shows the zoom function of the network camera which concerns on embodiment of this invention. The figure which shows the imaging information using the zoom function which concerns on embodiment of this invention.

  FIG. 1 is a diagram showing a configuration of a construction status recording system according to an embodiment of the present invention. The construction status recording system according to the present embodiment has a server device 2 as a main component, and has an external configuration of a network camera 1 installed at a construction (construction) site and the Internet using the network camera 1 as a communication network. A router 13 connected to the personal computer 3, a personal computer 3 for connecting to the Internet, browsing imaging information, and managing a construction status such as a process chart.

  The network camera 1 is arranged for each construction site, images the construction site as a still image by remote control from the server device 2, and transmits the captured image information to the server device 2. As shown in the figure, the server device 2 can also manage a plurality of construction sites, and manages imaging information and its process chart for each construction site.

  The server apparatus 2 is an information processing apparatus configured to include a control unit 21, a communication unit 22, a storage unit 23, and the like, and can execute an imaging control process, a synthesis process, a date / time tag determination process, a browsing process, and the like. . The imaging control process is a process for remotely controlling the imaging position, imaging timing, and the like of the network camera 1, and acquires imaging information by performing remote control. The imaging information includes identification information indicating the network camera 1, imaging date and time, imaging date and time including imaging time, and imaging related information such as imaging position (imaging direction). The acquired imaging information is stored in the storage unit 23.

  The combining process is a process of combining a plurality of pieces of imaging information acquired while changing the imaging position by remote control into one image (composite imaging information). Although details will be described later, the synthesized composite imaging information becomes a panoramic image that can be seen over a wide range of the construction site.

  The browsing process is a process for providing the logged-in personal computer 3 with an image of the construction site at the designated imaging date and time and imaging position. The server device 2 is provided with a browsing program written in JAVA script or the like, and the personal computer 3 accessed from the outside can browse the image of the construction site with the Internet browsing software.

  FIG. 2 is a diagram illustrating an imaging range of the network camera according to the embodiment of the present invention. In order to image a wide range of construction sites at once, it is conceivable to perform imaging using a wide-angle lens, but with a wide-angle lens, distortion of the captured image is large at the periphery of the image, and resolution is also limited. It becomes. In order to confirm the progress of the process, it is necessary to observe the details of the work process with an image. Further, a large number of construction sites often perform a plurality of work processes at the same time. Therefore, it is preferable that the image can be observed with less resolution and distortion. Further, one work process at the construction site is at least several minutes at a minimum, and is performed with a relatively long span.

  In the present embodiment, attention is paid to the features of the work at the construction site. The imaging range of the network camera 1 is variably controlled, the construction site is divided into a plurality of imaging ranges, and the captured images are synthesized. This makes it possible to observe the entire construction site. A time interval of several seconds is required from the time when the network camera 1 captures one imaging range to the next imaging range, and several tens of seconds to several minutes are required to image the entire construction site. However, it is possible to regard it as an error in the observation of the work process if the time is about that time.

FIG. 3 is a diagram illustrating the network camera according to the embodiment of the present invention. The network camera 1 includes a lens 11 for capturing an image, and includes an imaging element such as a CCD, an image processing unit, a communication control unit, and the like inside the housing. In this embodiment, it is possible to communicate with the external server device 2 and the like using the LAN cable 12. Although not shown, a power cable for supplying power is also connected. The network camera 1 according to the present embodiment operates the lens 11 in the direction A (pan direction), the direction B (tilt direction), and the direction C (zoom) as shown by the broken-line arrows in the figure to vary the imaging range. It is possible.

  The control of the imaging direction is executed based on a control signal input via the LAN cable 12. In addition, imaging information captured by the lens 11 can be output to the LAN cable 12 side in real time. For this reason, it is possible to control the moving direction of the lens 11 while confirming the imaging information on the remote control side. Further, the lens 11 also includes a zoom mechanism, and the imaging range can be expanded and reduced by remote control. In this embodiment, wired control using the LAN cable 12 is used for control of the network camera 1, but wireless control using a wireless LAN may be used. However, in order to ensure the control of the network camera 1 and the acquisition of imaging information at the construction site, it is preferable to perform the control by wired control.

  FIG. 4 is a diagram showing a state of composite imaging information formation according to the embodiment of the present invention. As described with reference to FIG. 2, the entire construction site cannot be imaged by one imaging by the network camera 1. Therefore, as described with reference to FIG. 3, the network camera 1 is operated in the directions A and B to change the imaging range, and the entire construction site is imaged. A1 to A12 shown in the figure are each one-time imaging information by the network camera 1, and the whole construction site can be overlooked by combining (joining) a plurality of imaging information as shown in the figure. Two pieces of composite imaging information can be formed. As for the formation of the composite back imaging information, information regarding the imaging position such as pan, tilt, zoom, etc. acquired from the network camera 1 at the time of imaging is used, or the correlation with the adjacent imaging information is taken and joined at a location with a high degree of correlation. For example, it is possible to execute using a panoramic technique using a plurality of well-known imaging information.

  By repeatedly performing a series of imaging processes (one imaging turn) shown in FIG. 4, a plurality of composite imaging information can be acquired on the time axis. Note that a plurality of pieces of imaging information imaged in one imaging turn are respectively imaged at predetermined imaging positions. In addition, it is not always necessary to perform the imaging order of each imaging information in the same order every time. For example, in FIG. 4, first, imaging may be performed in the order of the subscript number of each imaging information, and in the next imaging turn, imaging may be performed so as to go back to the subscript number. In this case, it is possible to reduce the amount of movement of the network camera 1 between the imaging turns and shorten the time required between the imaging turns.

  FIG. 5 is a time chart showing a state of imaging information acquisition according to the embodiment of the present invention. As described with reference to FIG. 4, a plurality of pieces of imaging information forming the composite imaging information are sequentially imaged in one imaging turn. As shown in the drawing, imaging of the imaging information A1 to A12 is sequentially executed at imaging times t1 to t12. In the network camera 1 used in this embodiment, an imaging interval t of each imaging information is required for about 4 to 8 seconds. Therefore, the minimum time required for one imaging turn is about 48 seconds. When one imaging turn ends, the next imaging turn (imaging information B1 to B12) is executed after the time interval T between imaging turns set as necessary has elapsed.

The acquired imaging information will be converted into one composite imaging information by the above-described synthesis processing, but in order to perform construction management, in order to determine at which point each composite imaging information is the construction status, An indicator of time is required. For this reason, in the present embodiment, a time tag that is an index of acquisition time is determined for the composite imaging information formed in each imaging turn. This time tag is determined by the imaging time included in the imaging information. For example, the time tag Ta for the imaging turn A is any of the imaging times t1 to t12 of the imaging information A1 to A12 within the period. Or any period within the period from imaging time t1 to imaging time t12. About the determination method of a time tag, it is preferable to make it common between each imaging turns. When browsing the composite imaging information described later, a search is executed based on the determined time tag.

  FIG. 6 shows a diagram showing the composite imaging information in time series according to the embodiment of the present invention. The composite imaging information formed in each imaging turn can be time-series information in the order of the determined time tags Ta to Td. In the browsing process, it is possible to browse the entire composite imaging information, but in the present embodiment, the designated display area portion is browsed in the composite imaging information. In the figure, by specifying a display area portion indicated by a rectangular shape, it is possible to observe the same display area, that is, the same imaging position portion at the construction site on the time axis in each composite imaging information. Further, the display area portion can be moved in all directions as indicated by arrows, and the display area can be moved to a portion required at the construction site and observed.

  Now, browsing processing executed on the personal computer 3 described with reference to FIG. 1 will be described with reference to FIGS. The personal computer 3 uses an Internet browsing software (browser) to observe and manage the construction status. Therefore, in the server apparatus 2, a browsing program necessary for it is prepared. 7 to 10 are all window screens on the Internet browsing software displayed on the display unit of the personal computer 3, and the user can browse the composite imaging information and perform construction management while looking at this screen. It is possible. 7 is a window diagram showing continuous display of composite imaging information, FIG. 8 is a diagram showing details of the process display unit, FIG. 9 is a window diagram showing time-based display of composite imaging information, and FIG. 10 is composite imaging. It is a window figure which shows the calendar display of information.

  In FIG. 7, the designated portion of the composite imaging information can be continuously displayed in time on one display window 44. When the user operates the time display bar 48 shown in the upper part of the time window 44 with the cursor 41, the composite imaging information having the time tag corresponding to the designated time is displayed on the display window 44. Although not shown in the figure, it is also possible to specify the date.

  The display interval setting unit 42 designates the time interval to be displayed, and the playback operation unit 43 designates a desired playback operation (reverse playback fast forward, reverse playback, stop, playback, playback fast forward) from the left. The combined imaging information corresponding to the information is sequentially displayed on the display window 44. Specifically, the composite imaging information having the time tag corresponding to the specified time is sequentially read out at the time interval set by the display interval setting unit 42 and displayed on the display window 44. In this embodiment, it is possible to reproduce and display the composite imaging information captured at an imaging interval of 1 minute, 2 minutes, or 5 minutes at time intervals of 1 second, 0.1 second, and 0.05 seconds. It is possible. For example, when the composite imaging information captured at intervals of 5 minutes is displayed at a time interval of 1 second, the composite imaging information for 1 hour is 12 seconds, and the composite imaging information for 24 hours (1 day) is 288. It is possible to reproduce and display in seconds, and to efficiently grasp the start / end of work.

  The image displayed on the display window 44 can be moved by a four-way movement switch located around the display window. As described with reference to FIG. 6, this corresponds to enabling the display area to be moved in the composite imaging information. The user can operate the movement switch with the cursor 41 to observe a desired construction position.

By such an operation, the user can observe in detail the construction site to which attention is paid in the plurality of pieces of composite imaging information. Furthermore, in this embodiment, it is also possible to perform construction management by simultaneously displaying the construction table 50 on this screen. The construction table 50 is a chart diagram that is shown based on construction data stored in the storage means 23 of the server device 2. In this embodiment, the construction start time and construction end time for each building member are input in advance as schedules. The user can perform construction management by inputting the actual construction start time and construction end time while displaying the construction status on the display window 44 and checking each construction status.

  The construction management will be described with reference to a portion surrounded by a broken line A in the process chart 50. 8A and 8B are diagrams showing details of the process display unit. FIG. 8A shows a display form before input, and FIG. 8B shows a display form after input. In both figures, a member name 51, a schedule / actual result 52, a construction start time 53, a construction end time 54, a time chart 55, and a construction time 56 are shown.

  The user designates (clicks) the member name for inputting the construction status with the cursor 41. Next, a building member corresponding to the member name is displayed in the display window 44 using a time display bar or the like. Next, the reproduction operation unit 43 performs reproduction in the forward direction and the reverse direction, and confirms the construction status of the building member. At this time, when the construction start of the building member is displayed on the display window, the construction start time column on the result (R) side is designated and operated. In the actual construction start time column, a time corresponding to the time tag corresponding to the composite imaging information displayed at that time is input. When the time tag indicates one time, the time tag is input as it is, but when the time tag indicates a period, a predetermined time during the period is input. .

  Similarly, for the end time column, when the construction end time of the building member is displayed on the display window 44, the operation completion time column on the actual result side is designated to correspond to the displayed composite imaging information. The time corresponding to the time tag is input. In response to the input on the result side, the time chart 55 on the result side and the required construction time 56 are displayed. The user can visually confirm the construction schedule and construction results on the time chart 55, and can confirm the construction schedule and construction results on the numerical values at the construction time 56.

  In this embodiment, the building member to be managed is designated, and then the building member is searched for on the display window 44. However, it is conceivable to simplify this process. For example, when a member name is specified in FIG. 8A, the construction start time schedule is known, and therefore composite imaging information corresponding to the scheduled time is displayed, thereby simplifying the search for building members. Conceivable. The user can easily find the corresponding building member by searching the composite imaging information before and after that.

  It is also conceivable to use the position of the building member using the CAD information of the building. In the three-dimensional CAD, it is possible to observe the building from any direction on the structure. By forming a building viewed from the same viewpoint position as the network camera 1 with CAD information and making it correspond to the composite imaging information, it is possible to easily find the arrangement position of the building member of interest in the composite imaging information. In the construction management, when the member name 51 is designated, the construction time and construction position of the corresponding building member can be easily found in the composite imaging information. The designation of the building member may be performed by performing a designation operation not only on the building name but also on the construction start time column, the construction end time column on the schedule (P) side, or the time chart 55.

  Furthermore, it is good also as reproducing the display condition of the display window 44 at the time of input by designating the construction start time column, construction end time column, or time chart 55 on the input result (R) side. In this case, the display area in the composite imaging information is recorded in association with the construction start time and the construction end time. It is possible to display the actual construction status from the process table 50 side and confirm the construction status again.

As described above, the construction management for building members has been explained. However, the construction management is not limited to construction members. For example, it can be performed for every process at the construction site such as check-in / out of vehicles and concrete placement work. it can. Further, by collecting the results of the construction process at the construction site and creating a database, it is possible to make the construction schedule to be performed later more accurate. Furthermore, the situation can be confirmed by video for each construction process, which can be utilized as a construction plan database, and the technology can be easily transferred. And since it is an unmanned operation by the network camera 1, it is possible to prevent human error and prevent human error.

  FIG. 9 is a window diagram showing a time-based display of composite imaging information. In FIG. 7, the composite image information is displayed in a single display window 44 while being shifted in time like an animation. However, in the display by time of the present embodiment, the construction status at different times in the plurality of display windows. Is displayed, and it is possible to observe the transition of the construction status. The user can designate the period setting unit 45 and the time interval setting unit 46 with the cursor 41 to display the composite imaging information on a plurality of display windows. In each display window, composite imaging information having a time period corresponding to the set period set by the period setting unit 45 and the time interval set by the reproduction time interval setting unit 46 is displayed.

  Also in this case, the display area portion is displayed on each display window in the composite imaging information described with reference to FIG. The movement of the display area is performed by performing a designation operation with the cursor 41 on the switch displayed on the upper right in the drawing. In the present embodiment, when the display area part is moved, it is reflected in the display area part displayed in all the display windows. Therefore, the user can observe the same construction part over a plurality of times.

  FIG. 10 is a window diagram showing a calendar display of the composite imaging information. In the present embodiment, by designating and inputting a desired construction year and construction month in the year / month setting section 47, the construction status including the construction month can be displayed in a calendar. The readout of the composite imaging information displayed on each display window is the same as in the case of FIG. 9, and the composite imaging information having a time tag corresponding to each day of the designated construction month is read out. Also in this embodiment, a desired display area can be selected by operating the switch displayed on the upper right in the figure. The operation related to the display area is reflected in the composite imaging information displayed on all the display windows.

  9 and 10, the time-based display and the calendar display have been described as described above. However, in these embodiments, the same construction location, that is, the same display area in the composite imaging information can be observed at various intervals. It is possible, and it is possible to check the progress of construction at a glance.

  In the present embodiment, the panning and tilting functions of the network camera 1 are used to move the imaging position at the construction site. However, some network cameras 1 have a zoom function, and this zoom function is used. By doing so, it is also possible to image a more detailed construction situation.

  FIG. 11 is a diagram illustrating a zoom function of the network camera, and FIG. 12 is a diagram illustrating various pieces of imaging information using the zoom function. The zoom function is a function of enlarging the imaging target by changing the optical system, and the imaging range can be changed as shown in FIG. In the figure, imaging information A1 imaged on the wide-angle side, imaging information A1-a imaged using the zoom function, and imaging information A1-b when zooming is performed are shown.

FIG. 12A is a diagram showing a case where the image is captured in this way, and shows A1-b on the zoom side from A1 on the wide-angle side. In the drawing, the size of each piece of imaging information is different, but the resolution of any imaging information is the same. On the A1-b side, it becomes possible to observe a more detailed construction situation. In the construction site, when a place to be observed is determined in advance, the zoom function may be operated around the target location as described above to acquire more detailed imaging information. In the browsing process, in the case of a wide range according to the operation of the enlargement / reduction switch, the imaging information imaged on the wide-angle side is switched and when the image is enlarged, the imaging information imaged by the zoom function is switched and displayed.

  FIG. 12B shows the detailed imaging information from A1-a to A1-i by operating the zoom function for each area obtained by dividing the imaging information into nine areas for the imaging information A1 on the wide angle side. The case of getting is shown. Thus, it is possible to confirm not only the attention point but also the construction site in detail by imaging with the zoom function for each region.

  Note that the present invention is not limited to these embodiments, and embodiments configured by appropriately combining the configurations of the respective embodiments also fall within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Network camera, 11 ... Lens, 12 ... LAN cable, 13 ... Router, 2 ... Server apparatus, 21 ... Control means, 22 ... Communication means, 23 ... Memory | storage means, 3a-3b ... Personal computer, 41 ... Cursor, 42 ... display interval setting unit, 43 ... reproduction operation unit, 44 ... display window, 45 ... period setting unit, 46 ... time interval setting unit, 47 ... year / month setting unit, 48 ... time display bar 50 ... process display unit, 51 ... Name of member 52 ... Plan / actual (P: Plan, R: Actual), 53 ... Construction start time, 54 ... Construction end time, 55 ... Time chart, 56 ... Construction required time

Claims (6)

In the construction status imaging system that controls the imaging means that can change the imaging position and images the construction site,
An imaging control process for repeatedly executing an imaging turn for causing the imaging means to sequentially image a plurality of imaging positions set in advance by dividing the construction site into a plurality of imaging ranges ;
Combining a plurality of imaging information captured at each imaging turn to generate a plurality of combined imaging information on the time axis ,
Date and time tag determination processing for determining a date and time tag based on the imaging date and time of at least one imaging information used at the time of synthesis for each combined imaging information;
A construction status recording system comprising: a display output process for displaying and outputting composite imaging information having a date and time tag corresponding to a specified date and time specified by a specifying means. The construction status recording system according to claim 1, wherein the display output process changes a display range of the composite imaging information based on designation by the designation unit. The construction status recording system according to claim 1 or 2, wherein the display output processing sequentially displays and outputs composite imaging information having date and time tags corresponding to designated time intervals. 4. The construction status recording system according to claim 3, wherein the display output processing records construction start time and construction end time based on designation from the designation means when the composite imaging information is sequentially displayed and output. 3. The construction status recording system according to claim 1, wherein the display output process simultaneously displays and outputs a plurality of composite imaging information having date and time tags corresponding to designated time intervals. In the construction status imaging program that controls the imaging means that can change the imaging position and images the construction site,
An imaging control process for repeatedly executing an imaging turn for causing the imaging means to sequentially image a plurality of imaging positions set in advance by dividing the construction site into a plurality of imaging ranges ;
Combining a plurality of imaging information captured at each imaging turn to generate a plurality of combined imaging information on the time axis ,
Date and time tag determination processing for determining a date and time tag based on the imaging date and time of at least one imaging information used at the time of synthesis for each combined imaging information;
A construction state imaging program that causes a computer to execute display output processing for displaying and outputting composite imaging information having a date and time tag corresponding to a specified date and time specified by a specifying means.

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