Management System

Abstract

Provided is a management system which enables detailed understanding of the situation of a construction site. The management system comprises: a server; and an imaging unit that is disposed at a construction site for installation of an elevator and that is capable of communicating with the server. The imaging unit has: a communication instrument that is capable of communicating with the server via a network; and a camera that is disposed in one of an elevator machine room, the interior of an elevator car, an intermediate area of a hoistway, and a hoistway pit, and that transmits, to the server via the communication instrument, a video having captured therein images of the construction site. The server has a screen display part for displaying, on a screen of a browsing terminal, the video received from the camera.

Description

[Technical Field]

[0001] The present disclosure relates to a management system. [Background technology]

[0002] Patent Document 1 discloses a communication system for a construction site. According to this communication system, a camera, which is an imaging means, is installed in a material storage area or the like at the construction site. When a disaster such as an earthquake or typhoon occurs, an image of the material storage area or the like is captured. The captured image is displayed on a display means at a monitoring center. Therefore, the monitoring center can check the damage status of the materials. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2008-242886 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the communication system described in Patent Document 1, only images are captured. While the timing for taking images is clear when a disaster occurs, even if such a communication system is applied to a normal construction site, it is unclear when the images should be taken. For example, even if a construction site manager tries to check the situation at the construction site using images, it is difficult to accurately grasp the situation.

[0005] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a management system that can grasp the status of a construction site in detail. [Means for solving the problem]

[0006] The management system according to the present disclosure includes a server and an imaging unit that is arranged at an elevator construction site and is capable of communicating with the server, the imaging unit having a communication device that is capable of communicating with the server via a network, and a camera that is arranged in any one of the elevator machine room, the inside of the car, the intermediate portion of the elevator shaft, and the elevator shaft pit and transmits captured images of the construction site to the server via the communication device, and the server has a screen display unit that displays images received from the camera on the screen of a viewing terminal. The camera has a light that can emit light, and the screen display unit selectably displays an alert button at a position corresponding to the image received from the camera, and the light emits light when the alert button is pressed. . [Effects of the Invention]

[0007] According to the present disclosure, the situation at the construction site can be grasped in detail. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram of a management system according to a first embodiment. [Figure 2] FIG. 2 is a schematic diagram of an imaging unit of the management system according to the first embodiment. [Figure 3] FIG. 2 is a front view of a camera of the management system according to the first embodiment. [Figure 4] 4 is a table showing the status of cameras in the management system according to the first embodiment. [Figure 5] 2 is a perspective view showing a holder and a repeater of the management system according to the first embodiment. FIG. [Figure 6] 2 is a perspective view showing a holder and a repeater of the management system according to the first embodiment. FIG. [Figure 7] 2 is a perspective view showing a holder and a repeater of the management system according to the first embodiment. FIG. [Figure 8] 1 is a perspective view of a state in which a relay device of the management system in the first embodiment is installed, as seen from below. FIG. [Figure 9] 2 is a perspective view showing a holder and a repeater of the management system according to the first embodiment. FIG. [Figure 10] 3 is a top view showing a holder and a relay device of the management system in the first embodiment. FIG. [Figure 11] 1 is a diagram showing the configuration of essential parts of a management system according to a first embodiment. [Figure 12] 1 is a functional block diagram of a main part of a management system according to a first embodiment. [Figure 13] 4 is a flowchart showing a part of the processing operation of the management system according to the first embodiment. [Figure 14] 10 is an authentication screen displayed on a management interface by the management system according to the first embodiment. [Figure 15] 10 is a screen of a first map displayed on a management interface by the management system in the first embodiment. [Figure 16] 10 is a screen of a second map displayed on a management interface by the management system in the first embodiment. [Figure 17] 10 is a screen of a second map displayed on a management interface by the management system in the first embodiment. [Figure 18] 1 is a thumbnail screen displayed on a management interface by the management system according to the first embodiment. [Figure 19] 1 is a timeline screen displayed on a management interface by the management system according to the first embodiment. [Figure 20] 4 is a diagram showing a video display screen displayed on a management interface by the management system according to the first embodiment. [Figure 21] 4 is a diagram showing a video display screen displayed on a management interface by the management system according to the first embodiment. [Figure 22] FIG. 2 is a hardware configuration diagram of an information server in the management system according to the first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] The embodiments of the present disclosure will be described with reference to the accompanying drawings. In each drawing, the same or corresponding parts are designated by the same reference numerals. Duplicate descriptions of these parts will be appropriately simplified or omitted.

[0010] Embodiment 1 Fig. 1 is a schematic diagram of a management system according to embodiment 1. Fig. 2 is a schematic diagram of an imaging unit of the management system according to embodiment 1.

[0011] The management system 1 is applied to a construction site. In particular, as shown in Fig. 1, the management system 1 is applied to a construction site of an elevator device 200. Hereinafter, as an example, an example in which the management system 1 is applied to a construction site of an elevator device 200, in particular, a modernization site which is an update and renovation work for the elevator device 200, will be described.

[0012] Elevator device 200 is installed in building 300. Hoistway 201 of elevator device 200 passes through each floor of building 300. Machine room 202 is installed directly above hoistway 201. Hoistway 201 and machine room 202 are separated by truss 203. Truss 203 forms the ceiling of hoistway 201 and also forms the floor of machine room 202. Although not shown, truss 203 has one or more through holes connecting hoistway 201 and machine room 202. Pit 204 is the lowest part of hoistway 201. A buffer, etc., not shown, is installed in pit 204.

[0013] Rail 205 is provided inside hoistway 201. Rail 205 is provided from truss 203 to pit 204 with its longitudinal direction facing vertically. Note that management system 1 may be applied to elevator apparatus 200 in a state where rail 205 is not installed or in a state where only a portion of rail 205 is installed in hoistway 201.

[0014] Cage 206 is provided inside hoistway 201. Cage 206 can move up and down inside hoistway 201 while being guided by rails 205. Cage 206 has a cab room 207 inside. The upper side of the ceiling of cab room 207 is the upper surface of car 206, where workers and the like can stand. For example, a car fence 208 is provided on the upper surface of car 206. Note that management system 1 may be applied to elevator apparatus 200 in a state where car 206 is not installed or in a state where only a portion of car 206 is installed in hoistway 201.

[0015] The management system 1 comprises an imaging unit 2, a management server 3, and a viewing terminal 4. The imaging unit 2 is a group of devices installed at a construction site and used to capture images or video, which is a series of images. The management server 3 is composed of devices that enable viewing of the captured images or video of the construction site.

[0016] The viewing terminal 4 is a terminal for viewing images or videos managed by the management server 3. The viewing terminal 4 may be a terminal carried by a worker, a terminal operated by a site manager who supervises the construction site, or a terminal operated by a safety and health instructor who provides guidance on safety and health management at the construction site. The viewing terminal 4 has a screen for displaying information and an input means for accepting input of information. The viewing terminal 4 may be any terminal such as a smartphone, a personal computer, or a tablet.

[0017] Next, the imaging unit 2 will be described with reference to Fig. 2 in addition to Fig. 1. The imaging unit 2 includes a communication device 10, four cameras 20, a network hub 30, a repeater 40, a holder 50, and a power supply 60. The communication device 10, the network hub 30, the repeater 40, the holder 50, and the power supply 60 function as a communication unit for realizing communication between the cameras 20 and the management server 3. The management server 3 stores information for identifying the imaging unit 2. The management server 3 also stores information for identifying each of a plurality of other imaging units 2 (not shown).

[0018] The communication device 10 can communicate with the management server 3 via an external network N1. For example, the communication device 10 can communicate with the management server 3 using wireless communication radio waves. The communication device 10 is also included in a network N2 configured by the imaging unit 2.

[0019] As an example, the communication device 10 has a main body 11 and an installation stand 12. The main body 11 is a portable wireless communication terminal capable of communicating with the network N1. The installation stand 12 is also called a cradle and is a stand that can be electrically connected to the main body 11. The installation stand 12 is an interface that supplies power to the main body 11 and connects the main body 11 to a communication cable.

[0020] The network hub 30 constitutes part of the network N2. The network hub 30 is electrically connected to the installation stand 12 of the communication device 10 via a communication cable 31. The network hub 30 can be considered to be included in the configuration of the communication device 10. In this case, the network hub 30, which is the communication device 10, can be supplied with power via the communication cable.

[0021] The repeater 40 constitutes a part of the network N2. The repeater 40 is electrically connected to the network hub 30 via a communication cable 32 capable of communicating signals. The repeater 40 receives a supply of power from the network hub 30 via the communication cable 32.

[0022] The repeater 40 is placed inside the elevator shaft 201 by a holder 50. The repeater 40 is capable of transmitting and receiving radio waves for communication. Specifically, for example, the repeater 40 is capable of wireless communication using radio waves conforming to the Wi-Fi (registered trademark) standard. The repeater 40 has an antenna surface 41 that transmits directional radio waves. For example, the repeater 40 transmits directional radio waves in the normal direction of the antenna surface 41. The receiving sensitivity of the repeater 40 is designed to be higher on the antenna surface 41 than on other surfaces.

[0023] Generally, wireless radio waves from outside reach the inside of the hoistway 201 with difficulty. For this reason, wireless communication is difficult between the communication device 10 installed in the machine room 202 and the equipment inside the hoistway 201. Furthermore, due to the presence of obstacles such as the car 206 inside the hoistway 201, wireless communication is difficult between the equipment installed at the top and bottom. The repeater 40 relays communication between the communication device 10 and the equipment installed in the hoistway 201 by radio waves. In this case, the repeater 40 maintains a good environment for wireless communication with the equipment installed in the hoistway 201 by transmitting radio waves that are directional in the longitudinal direction of the hoistway 201.

[0024] The power supply 60 is connected to an external power supply (not shown) and supplies power from the external power supply to the communication device 10 and the network hub 30. The power supply 60 has a USB standard terminal that can supply power.

[0025] The four cameras 20 each have the same configuration. The cameras 20 are capable of capturing images or video. The following description will be given of the case where the cameras 20 capture video, but video may be interpreted as images as appropriate. The cameras 20 are capable of recording audio along with video. The cameras 20 perform various functions by appropriately executing stored applications. The cameras 20 form part of the network N2. The cameras 20 can communicate with the communication device 10 directly or via the repeater 40. The cameras 20 can communicate with the management server 3 via the network N1 via the communication device 10. The four cameras 20 and the communication device 10 form one group. For example, the communication device 10 may be a device that acts as an intermediary with the network N1 and can communicate only with the four cameras 20. The four cameras 20 may be a device that communicates with the network N1 and can communicate only with the communication device 10.

[0026] As an example, camera 20 has a rechargeable battery and can capture images without receiving an external power supply. For example, camera 20 is connected to the terminals of power supply 60 and charged. Camera 20 can be installed in any location using a magnet. Camera 20 may also be installed by being mechanically fixed using a mounting fixture.

[0027] Camera 20 has a function of identifying its own location using a global positioning system (GPS). After being started up, camera 20 identifies its own location, generates location information, and transmits the location information to management server 3.

[0028] Each of the four cameras 20 has unique camera identification information. The four cameras 20 consist of a first camera 20a, a second camera 20b, a third camera 20c, and a fourth camera 20d. The first camera 20a is disposed inside the machine room 202 so as to be able to capture images of the interior of the machine room 202. The second camera 20b is disposed inside the car 206 so as to be able to capture images of the interior of the car 206.

[0029] The third camera 20c is disposed on the upper surface of the car 206 so as to be able to capture an image of at least one of the upper surface of the car 206 and the middle portion of the hoistway 201. For example, the third camera 20c is attached to the car fence 208 of the car 206. The third camera 20c may be attached to the rail 205 or another device in the middle portion of the hoistway 201. The middle portion of the hoistway 201 is the portion between the upper end and the lower end of the hoistway 201. When attached to the upper surface of the car 206, the third camera 20c can be considered to be attached to the middle portion of the hoistway 201.

[0030] The fourth camera 20d is disposed inside the pit 204 at the bottom end of the elevator shaft 201 so as to be able to capture an image of the inside of the pit 204.

[0031] It should be noted that a maximum of four cameras 20 included in the imaging unit 2 is sufficient. Because the equipment configuration of the elevator apparatus 200 is concentrated vertically, the number of locations where work can be performed simultaneously during construction of the elevator apparatus 200 is limited. Specifically, from a safety standpoint, although work and the like may be performed in four locations - the machine room 202, the pit 204, the inside of the car 206, and the middle portion of the hoistway 201 above the car 206 - it is unlikely that work will be performed in more locations than this at the same time. For this reason, the imaging unit 2 is designed so that cameras 20 can be installed in a maximum of the four locations mentioned above.

[0032] Next, the camera 20 will be described with reference to FIGS. Fig. 3 is a front view of the camera of the management system in accordance with embodiment 1. Fig. 4 is a table showing the status of the camera of the management system in accordance with embodiment 1.

[0033] As shown in Fig. 3, camera 20 has an imaging lens 21 on the front. Camera 20 has a light 22, a power light 23, a first function light 24, and a second function light 25. Camera 20 has a first function button 26 and a second function button 27 on the top surface. Camera 20 is turned on or off by pressing a power button (not shown).

[0034] The light 22 emits light as a flash when taking a picture. The light intensity of the light 22 is relatively strong enough to be noticed by people around the camera 20. The power light 23 is an LED that emits light in a single color. The power light 23 emits light when the camera 20 is turned on. The first function light 24 and the second function light 25 are LEDs that can emit light in any of three or more colors. The first function light 24 and the second function light 25 indicate the current status of the camera 20 by whether or not they emit light and the combination of their colors. Pressing at least one of the first function button 26 and the second function button 27 changes the shooting status and sound recording status of the camera 20. For example, if the first function button 26 is pressed when the camera 20 is waiting to start capturing images, the camera 20 starts capturing images.

[0035] 4 shows the relationship between the light combinations of the first function light 24 and the second function light 25 and the state of the camera 20. Each of the first function light 24 and the second function light 25 can be in one of the following states: off O, emitting green G, emitting red R, or emitting yellow Y. The second column of the table shows the state of the first function light 24, and the third column shows the state of the second function light 25. The first column shows the state of the camera 20 corresponding to the combination of the second and third columns.

[0036] For example, when the power of the camera 20 is off (OFF), both the first function light 24 and the second function light 25 are off. After the power of the camera 20 is turned on, when an application (camera app) for the camera 20 to transmit video is running, the first function light 24 emits green light and the second function light 25 is off. When the camera 20 is ready to distribute, that is, when it is ready to start capturing images when the first function button 26 is pressed, the first function light 24 emits yellow light and the second function light 25 is off. When the camera 20 is capturing images and simultaneously recording audio, the first function light 24 emits red light and the second function light 25 emits green light.

[0037] Next, the holder 50 will be described with reference to FIGS. Figures 5 to 7 and 9 are perspective views showing the holder and repeater of the management system in embodiment 1. Figure 8 is a perspective view from below showing the installed repeater of the management system in embodiment 1. Figure 10 is a top view showing the holder and repeater of the management system in embodiment 1.

[0038] 5 to 9, the holder 50 includes a first holder 51, a second holder 52, a plurality of magnets 53, and a bolt 54. For example, the holder 50 is made from a plate bent into an L shape.

[0039] The first holding body 51 has a plate shape and has a longitudinal direction and a lateral direction perpendicular to the longitudinal direction.

[0040] The second holding body 52 is plate-shaped. The second holding body 52 extends perpendicularly from one end of the first holding body 51 in the longitudinal direction. The longitudinal direction of the second holding body 52 is the direction in which it extends from the first holding body 51. A through-hole 52a is provided in a holding surface 52s of the second holding body 52. ​​The holding surface 52s is perpendicular to the longitudinal direction of the first holding body 51. The holding surface 52s may be either of two surfaces of the second holding body 52 that face opposite each other.

[0041] The plurality of magnets 53 are provided on the first holding body 51. As an example, two magnets 53 are provided. The plurality of magnets 53 are aligned in the longitudinal direction of the first holding body 51. Hereinafter, the direction in which the plurality of magnets 53 are aligned is also referred to as the alignment direction.

[0042] The bolt 54 passes through the through hole 52a and is screwed into the repeater 40. In this way, the repeater 40 is detachably attached to the second holder 52 by the bolt 54. Although not shown, the second holder 52 and the repeater 40 may be provided with attachment magnets. In this case, the repeater 40 may be detachably attached to the second holder 52 by the attachment magnets.

[0043] Specifically, the repeater 40 is attached to the second holder 52 so that the mounting surface 42 and the holding surface 52s are in contact. The mounting surface 42 faces away from the antenna surface 41 and is parallel to the antenna surface 41. That is, the repeater 40 is held in the holder 50 so that the antenna surface 41 is parallel to the holding surface 52s. When the repeater 40 is attached, the alignment direction of the multiple magnets 53 is perpendicular to the antenna surface 41. This is because the alignment direction is perpendicular to the holding surface 52s, and the holding surface 52s and the antenna surface 41 are parallel. As shown in FIG. 8 , the repeater 40 has radio wave directivity in the normal direction of the antenna surface 41. For example, when the repeater 40 is attached, the antenna surface 41 faces vertically downward.

[0044] As shown in FIG. 9 , the holder 50 further includes a fall prevention body 55. One end of the fall prevention body 55 is attached to the repeater 40. The other end of the fall prevention body 55 is attached to equipment inside the hoistway 201. Specifically, the fall prevention body 55 has a wire 56 and a hook 57. One end of the wire 56 is attached to the repeater 40. The hook 57 is provided at the other end of the wire 56. The hook 57 can be fixed to equipment or a member inside the hoistway 201. For example, if the repeater 40 becomes detached from the second holder 52, or if the first holder 51 becomes detached and falls off together with the repeater 40, the fall prevention body 55 can prevent the repeater 40 and the holder 50 from falling further downward and colliding with the car 206, the pit 204, etc.

[0045] FIG. 10 shows the holder 50 and the relay 40 attached to the rail 205. FIG. 10 shows a cross section of the rail 205 taken along a horizontal plane. The rail 205 has a head 205a and a bottom 205b. The head 205a extends from the bottom 205b. Although not shown, the head 205a comes into contact with the car 206 to guide the car 206. The bottom 205b is fixed in position within the hoistway 201 by a bracket or the like, not shown. FIG. 10 shows a main portion of the rail 205 where a surface 205s of the bottom 205b is spaced apart from the wall surface of the hoistway 201, etc. The surface 205s is the surface of the bottom 205b opposite the head 205a.

[0046] The multiple magnets 53 generate an attractive force due to magnetic force between them and the bottom 205b. The holder 50 and the repeater 40 are detachably attached to the surface 205s of the bottom 205b. At this time, the alignment direction of the multiple magnets 53 faces the longitudinal direction of the rail 205. By attaching them in this manner, the direction of the directivity of the repeater 40 faces downward in the vertical direction, which is the longitudinal direction of the elevator shaft 201. For example, the antenna surface 41 of the repeater 40 faces the pit 204.

[0047] The length in the short side direction of first holding body 51 is shorter than the horizontal length of surface 205s of bottom portion 205b of rail 205. Therefore, first holding body 51 is attached to rail 205 without protruding from bottom portion 205b of rail 205.

[0048] The length of the second holder 52 in the longitudinal direction may be shorter than the length of one end of the repeater 40. In this case, the second holder 52 holds the repeater 40 without protruding from the repeater 40.

[0049] The magnetic forces of the multiple magnets 53 are designed so that the resultant force of the attractive forces generated between the multiple magnets 53 and the rail 205 is greater than the sum of the gravity applied to the holder 50 and the gravity applied to the relay 40. In particular, the magnetic forces of the multiple magnets 53 are designed so that the resultant force of the attractive forces generated between the multiple magnets 53 and the rail 205 is greater than the gravity applied to at least the relay 40, the first holder 51, and the second holder 52.

[0050] Next, the configuration of the management server 3 will be described with reference to FIGS. Fig. 11 is a diagram showing the equipment configuration of the main parts of the management system according to embodiment 1. Fig. 12 is a functional block diagram of the main parts of the management system according to embodiment 1. Although not shown, the management system 1 includes a plurality of imaging units 2 installed at a plurality of construction sites.

[0051] 11, the management server 3 includes an intermediate server 110 and an information server 120. The intermediate server 110 and the information server 120 are installed in different locations and are separated into different sections on the network. Note that the management server 3 may be configured as an integrated server as long as it includes the functions of the intermediate server 110 and the information server 120. For example, some of the functions described below as functions of the information server 120 may be realized as functions of the intermediate server 110 rather than the information server 120.

[0052] The intermediate server 110 is capable of communicating with the imaging unit 2 and the information server 120 via at least the network N1. The information server 120 is capable of communicating with the imaging unit 2 via the intermediate server 110 via the network N1. For example, when information is transmitted from the imaging unit 2 to the intermediate server 110, the intermediate server 110 notifies the information server 120 that the information has been transmitted. Note that the information server 120 may also be capable of communicating with the imaging unit without going through the intermediate server 110. The intermediate server 110 mainly stores image or video information.

[0053] Information server 120 constitutes part of network N3. Network N3 is managed by the company that owns information server 120, and is an intranet that includes information server 120 and some of multiple viewing terminals 4. The viewing terminals 4 included in network N3 are included in the internal network of the company that manages information server 120. Viewing terminals 4 that are not included in network N3 but have completed the required security authentication can access network N3 from an external network. Information server 120 mainly manages information about images or videos stored in intermediate server 110, and provides a management interface for viewing the images or videos on viewing terminals 4. Information server 120 displays the images or videos on the screen of viewing terminal 4 via the management interface. Owners of viewing terminals 4 can view the images or videos.

[0054] 12, the intermediate server 110 includes, as its functions, a first storage unit 111 and a date and time management unit 112. The first storage unit 111 stores information about images or videos transmitted from the camera 20.

[0055] The date and time management unit 112 manages date and time information, which is a combination of a date and a time at a certain point in time. The date and time indicated in the date and time information is used throughout the management system 1. When a startup notification indicating that a camera 20 has started up is received, the date and time management unit 112 transmits the date and time information to the camera 20.

[0056] The information server 120 includes a second storage unit 121, a location management unit 122, a video management unit 123, a screen display unit 124, a first authentication unit 125, and a second authentication unit 126 as functions.

[0057] The second storage unit 121 stores various information for managing the devices and security included in the management server 3. Specifically, the second storage unit 121 stores identification information for each of the multiple imaging units 2. For example, the identification information for the multiple imaging units 2 is distinguished by an individual identifier assigned to each communication device 10. The second storage unit 121 stores site information for multiple construction sites managed by the company that owns the management server 3. The site information includes, in association with each other, information such as the building that is the construction site, the location of the building that is the construction site, the construction content at the construction site, and the construction company involved in the construction site.

[0058] The position management unit 122 manages the current position information of the imaging unit 2. The position information of the imaging unit 2 is determined by the position information transmitted from the camera 20 of the imaging unit 2. Specifically, consider a case where first position information is first received from an earlier camera 20 of the multiple cameras 20 included in the imaging unit 2, and then second position information is received from a later camera 20 of the multiple cameras 20. When the position management unit 122 receives the first position information from the earlier camera 20, it identifies the imaging unit 2 and determines the position indicated in the first position information as the position information of the imaging unit 2. When the position management unit 122 subsequently receives the second position information, it recognizes that position information for the imaging unit 2 already exists and does not reflect the second position information in the position information of the imaging unit 2. In other words, the position management unit 122 manages the position of the later camera 20 using the first position information, not the second position information.

[0059] If the second position information received from the subsequent camera 20 is farther away than the specified determination distance from the current position information of the imaging unit 2, the position management unit 122 reflects the second position information in the position information of the imaging unit 2. That is, in this case, the position management unit 122 manages the second position information, rather than the first position information, as the current position information of the imaging unit 2.

[0060] When all the cameras 20 included in a certain imaging unit 2 are powered off, the position management unit 122 may reset the position information of the imaging unit 2 and not manage the position information.

[0061] When the position of the imaging unit 2 is within a determination distance from the position of the construction site indicated in the site information, the video management unit 123 associates the imaging unit 2 with the site information. That is, it identifies the construction site where the imaging unit 2 is located.

[0062] Furthermore, the video management unit 123 adds information to be managed to the image or video information received from the camera 20 and stores the image or video information in the first storage unit 111. Specifically, when the video management unit 123 receives image or video information from the camera 20, the video management unit 123 associates the identification information of the camera 20, the identification information of the imaging unit 2 including the camera 20, the position information of the imaging unit 2, and the position information of the construction site, and stores the associated information in the first storage unit 111. Here, since the camera 20 captures the image or video information in association with the date and time information, the image or video information includes the date and time information. Note that if the imaging unit 2 is not associated with the site information because the position of the imaging unit 2 does not correspond to the position of the construction site or because position information has not been received from the camera 20, the video management unit 123 may store the image or video information in the first storage unit 111 without associating it with the position of the construction site.

[0063] The screen display unit 124 provides a management interface for viewing images or videos, and manages the display content of the screen in the management interface.

[0064] An authentication system is configured by first authentication unit 125 and second authentication unit 126. First authentication unit 125 manages access from outside network N3 to the inside of network N3. For example, first authentication unit 125 may manage access to the management interface of a viewing terminal 4 that is not included in network N3. First authentication unit 125 may manage authentication for a viewing terminal 4 that is not included in network N3 to be included in network N3. Note that first authentication unit 125 may also manage access to the management interface by a viewing terminal 4 that is included in network N3.

[0065] The second authentication unit 126 manages access for viewing terminals 4 that have been granted access by the first authentication unit 125 to view image or video information. That is, the second authentication unit 126 imposes further access authentication on viewing terminals 4 that can access the network N3. The second authentication unit 126 performs access authentication on the management interface. The functions of the second authentication unit 126 include a first display unit 127, a second display unit 128, and a release unit 129.

[0066] First display unit 127 displays a first map including the authentication location and an authentication icon indicating the authentication location. Second display unit 128 displays a second map including the authentication location but not the authentication icon. When the access authentication conditions are met on the second map, release unit 129 releases the security of viewing terminal 4. In this case, viewing terminal 4 becomes able to access image or video information.

[0067] Next, the process performed by the camera 20 and the management server 3 when the camera 20 is started will be described with reference to FIG. FIG. 13 is a flowchart showing a part of the processing operation of the management system according to the first embodiment.

[0068] The flowchart of FIG. 13 begins when one of the multiple cameras 20 is activated.

[0069] In step S01, the activated camera 20 transmits a startup notification indicating that it has started up to the management server 3 via the communication device 10. The following flowcharts will explain the processing of the activated camera 20. At this time, the camera 20 starts, in parallel, a process of identifying its own location using technology such as GPS, a process of activating an image capture application, and the like.

[0070] After that, in step S02, the intermediate server 110 and the information server 120 of the management server 3 receive the startup notification. The date and time management unit 112 of the intermediate server 110 sends the current date and time information to the camera 20.

[0071] Then, in step S03, the camera 20 receives the date and time information and sets the current date and time based on the date and time information.

[0072] Thereafter, in step S04, the camera 20 identifies its current position and determines whether or not it has acquired its own position information.

[0073] If the position information is not acquired in step S04, the operation of step S05 is performed. In step S05, the camera 20 determines whether or not the time during which the position information has not been acquired has exceeded a specified suspension time.

[0074] In step S05, if the time during which no location information has been obtained does not exceed the suspension time, the operations from step S04 onwards are repeated.

[0075] In step S05, if the time during which position information has not been acquired exceeds the suspension time, the operation of step S06 is performed. In step S06, camera 20 determines whether or not preparation of the image capture application is complete. If preparation of the image capture application is not complete in step S06, the operation of step S06 is repeated.

[0076] If the preparation of the image capture application is complete in step S06, the operation of step S07 is performed. In step S07, the camera 20 is ready to capture images. For example, if the first function button 26 is operated in this state, the camera 20 starts capturing images in association with the date and time information. Thereafter, the operation of the flowchart ends.

[0077] If the location information has been acquired in step S04, the operation of step S08 is performed. In step S08, the camera 20 transmits the acquired location information to the management server 3 via the communication device .

[0078] Then, in step S09, the management server 3 receives the position information of the camera 20. The position management unit 122 of the information server 120 determines whether the position information of the camera 20 is the first position information transmitted from the corresponding imaging unit 2. Whether the position information is the first can be determined by several methods.

[0079] For example, if the position information of the imaging unit 2 is determined within a specified determination time, the position management section 122 may determine that the position information received in step S09 is not the initial position information.

[0080] For example, the location management unit 122 may reset and erase the location information of the imaging unit 2 at a specified time or every time instant. In this case, when the location information of the imaging unit 2 has not been determined, the location management unit 122 may determine that the location information received in step S09 is the initial location information. When the location information of the imaging unit 2 has been determined, the location management unit 122 may determine that the location information received in step S09 is not the initial location information.

[0081] For example, if the position information of the imaging unit 2 and the position information received in step S09 are farther apart than the determination distance, the position management section 122 may determine that the position information received in step S09 is the initial position information.

[0082] If it is determined in step S09 that the received position information is the initial position information, the operation of step S10 is performed. In step S10, the position management unit 122 determines the position of the imaging unit 2 including the camera 20 to be the position indicated in the received position information. That is, the position management unit 122 sets the position information of the imaging unit 2.

[0083] Thereafter, the operation of step S11 is performed. In step S11, the video management unit 123 of the information server 120 associates one of the construction sites with the imaging unit 2 based on the position information and site information of the imaging unit 2. At this time, the video management unit 123 may associate the position of the construction site instead of the construction site. Thereafter, the operations from step S06 onwards are performed.

[0084] If it is determined in step S09 that the position information is not the first one, the operation of step S12 is performed. In step S12, the position management unit 122 does not update the position information of the imaging unit 2 that has already been set. That is, the position management unit 122 manages the position information of the imaging unit 2 based on the position of the camera 20 that previously received position information. Then, the operations from step S06 onwards are performed.

[0085] If the location information is not acquired in step S04, the operations from step S06 onward may be performed without making the determination in step S05. In this case, camera 20 may continue the process of acquiring the location information independently of the image capturing application.

[0086] Next, the screens displayed on the management interface will be described with reference to FIGS. FIG. 14 is an authentication screen displayed on the management interface of the management system in embodiment 1. FIG. 15 is a screen of a first map displayed on the management interface of the management system in embodiment 1. FIG. 16 is a screen of a second map displayed on the management interface of the management system in embodiment 1. FIG. 17 is a screen of a second map displayed on the management interface of the management system in embodiment 1. FIG. 18 is a thumbnail screen displayed on the management interface of the management system in embodiment 1. FIG. 19 is a timeline screen displayed on the management interface of the management system in embodiment 1. FIG. 20 is a screen of a video display displayed on the management interface of the management system in embodiment 1. FIG. 21 is a screen of a video display displayed on the management interface of the management system in embodiment 1.

[0087] 14 shows a login screen on which security authentication is performed by first authentication unit 125. The login screen is displayed on viewing terminal 4 and is a screen to which transitions can be made in the management interface. The viewing terminal 4 is a terminal whose access to network N3 has not been released. The login screen is provided with form F for accepting input of registered password authentication, password authentication for two-step authentication, etc.

[0088] First authentication unit 125 determines whether the authentication conditions for the first authentication are met based on the input information, etc. If the authentication conditions are met, first authentication unit 125 releases the security of viewing terminal 4 so that viewing terminal 4 can access network N3. Note that if viewing terminal 4 is included in network N3, first authentication unit 125 may deem the authentication conditions to be met and release the security of viewing terminal 4.

[0089] 15 to 17 show screens on which security authentication is performed by second authentication unit 126. Fig. 15 shows a screen on which the first map is displayed. First display unit 127 displays the first map on a viewing terminal 4 for which security has been released by first authentication unit 125. Furthermore, first display unit 127 does not display the first map on a viewing terminal 4 for which security has not been released by first authentication unit 125 and which is not able to access network N3.

[0090] The first map is a map with a scale larger than a specified boundary threshold. For example, the first map is a map of Japan that includes most of Honshu, one of the Japanese islands. The first map includes one or more authentication locations. The second authentication unit 126 performs security authentication using location information that can only be known by people who should view the video of the construction site. The authentication location is a location used for security authentication by the second authentication unit 126. For example, the authentication location is the location of the construction site. In particular, the authentication location is the location of the modernization site of the elevator device 200.

[0091] The first map shows one or more authentication icons I. The authentication icons I are icons corresponding to authentication locations and indicate the authentication locations. On the first map of the management interface, the authentication icons I can be selected by clicking a mouse, touching a touch panel, etc.

[0092] A person who wants to view video of a construction site selects an authentication icon I on the first map that corresponds to the construction site that the person wants to view, or enlarges the first map to reduce the scale so that the authentication icon I is included.

[0093] 16 is then displayed on the management interface. Specifically, when a certain authentication icon I is selected on the first map, the second display unit 128 displays on the screen a second map whose scale is equal to a specified boundary threshold and which includes an authentication position corresponding to the selected authentication icon I. Alternatively, when the first map is enlarged to include a certain authentication icon I and the scale becomes equal to or smaller than the specified boundary threshold, the second display unit 128 displays on the screen a second map whose scale is equal to the specified boundary threshold.

[0094] In the example shown in FIG. 16, a second map including Tokyo is shown. The second map is a map whose scale is equal to or smaller than the boundary threshold. That is, the second map includes maps whose scale is smaller than the boundary threshold. The second map includes the authentication location. However, it is not essential that the authentication location be included in the second map. The authentication icon I is not shown on the second map.

[0095] Fig. 17 shows a second map that is enlarged more than Fig. 16 and therefore has an even smaller scale. On the second map of the management interface, any position on the map can be specified by clicking a mouse, touching a touch panel, etc. If the position specified on the second map is within a specified authentication distance from the authentication position, the release unit 129 releases the security for viewing images or videos of the construction site corresponding to the authentication position.

[0096] 17 schematically shows a position P for which the designation has been accepted, and a circle E of an authentication range with a radius centered on the position P and an authentication distance. For example, the authentication distance is 50 m. If the authentication position is located inside the circle E, the distance between the authentication position and the position P for which the designation has been accepted is within the authentication distance, so the release unit 129 releases the security. Also, if the position for which the designation has been accepted on the second map is farther away from the authentication position than the specified authentication distance, the release unit 129 does not release the security for viewing images or videos of the construction site corresponding to the authentication position.

[0097] In addition, if the location for which the designation is accepted is within the authentication distance corresponding to each of multiple authentication locations, the release unit 129 may display information on the management interface for selecting one of multiple construction sites corresponding to the multiple authentication locations.

[0098] Next, a screen for viewing an image or video will be described with reference to Figures 18 to 21. Note that the following description will be given assuming that the video is stored in the management server 3.

[0099] When the security is released by the release unit 129, the management interface transitions to a screen for selecting a video of the corresponding construction site. The screen display unit 124 displays a screen for selecting a video before the screen for displaying the video.

[0100] FIG. 18 shows a first example of a screen for selecting video. In the first example, the screen display unit 124 displays a thumbnail list screen for video. On the thumbnail list screen, videos captured by the cameras 20 of the same imaging unit 2 are displayed in association with each other. On the thumbnail list screen, a date and time are displayed in association with a thumbnail S, which is a portion of the video captured on that date and time. The thumbnail S may also be displayed in association with a portion of the corresponding site information. When a thumbnail S is selected on the thumbnail list screen, the screen display unit 124 transitions the management interface to a screen that displays the video of the selected thumbnail and videos captured by the same imaging unit 2 at the same date and time.

[0101] FIG. 19 shows a second example of a screen for selecting video. In the second example, the screen display unit 124 displays a video timeline screen. On the timeline screen, videos captured by the cameras 20 of the same imaging unit 2 are displayed in association with each other. The timeline screen displays a date and time and a bar indicating the date and time when the video was captured. The bar is placed at a corresponding position on the date and time. The multiple bars indicating videos captured by the multiple cameras 20 of the imaging unit 2 are arranged so that the capture times are aligned. When a bar is selected on the timeline screen, the screen display unit 124 transitions the management interface to a screen that displays the video of the selected bar and videos captured by the same imaging unit 2 at the same date and time.

[0102] 20 shows an example of a screen for viewing videos. The screen display unit 124 displays a plurality of captured videos on the management interface screen so that they are played back with their dates and times synchronized.

[0103] For example, if, on a certain date and time, first camera 20a, second camera 20b, third camera 20c, and fourth camera 20d included in imaging unit 2 all capture images, the four images are associated and stored in first storage section 111. Since all four images were captured with date and time information reflected, the dates and times shown in the images match each other.

[0104] The screen display unit 124 simultaneously displays the four videos on the same display screen and plays them simultaneously. At this time, the screen display unit 124 synchronizes the dates and times of all the videos when playing them. For example, when an arbitrary playback position is specified with the seek bar B1 in one video, the screen display unit 124 moves the seek bars B1 of the other three videos to the date and time positions corresponding to the specified playback position.

[0105] The screen display unit 124 displays an alert button B2 at a position corresponding to the video. The alert button B2 is a selectable button. When four videos are displayed, four alert buttons B2 corresponding to the four videos respectively are displayed. The four alert buttons B2 correspond to the four cameras 20, respectively.

[0106] When the alert button B2 corresponding to a certain camera 20 is selected by clicking, touching, or the like, the light 22 of that camera 20 flashes. For example, when a site supervisor checking the video from the viewing terminal 4 wants to alert a worker captured on a certain camera 20, he or she selects the alert button B2 corresponding to that camera 20. In this case, the light of that camera 20 flashes, making the worker aware of the alert.

[0107] 21, the screen display unit 124 can also display only one of a plurality of images. An alert button B2 corresponding to the image is also displayed on this screen.

[0108] Next, an example of hardware that constitutes the information server 120 will be described with reference to FIG. FIG. 22 is a hardware configuration diagram of the information server of the management system according to the first embodiment.

[0109] Each function of the information server 120 may be realized by a processing circuit. For example, the processing circuit includes at least one processor 1000a and at least one memory 1000b. For example, the processing circuit includes at least one dedicated hardware 2000.

[0110] When the processing circuit includes at least one processor 1000a and at least one memory 1000b, each function of the information server 120 is realized by software, firmware, or a combination of software and firmware. At least one of the software and firmware is written as a program. At least one of the software and firmware is stored in the at least one memory 1000b. The at least one processor 1000a realizes each function of the information server 120 by reading and executing the program stored in the at least one memory 1000b. The at least one processor 1000a is also referred to as a central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, or DSP. For example, the at least one memory 1000b may be a non-volatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, or EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a minidisk, a DVD, or the like.

[0111] When the processing circuit includes at least one dedicated hardware 2000, the processing circuit may be realized, for example, as a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof. For example, each function of the information server 120 may be realized by a processing circuit. For example, each function of the information server 120 may be realized collectively by a processing circuit.

[0112] Some of the functions of the information server 120 may be realized by dedicated hardware 2000, and the remaining functions may be realized by software or firmware. For example, the function of the screen display unit 124 may be realized by a processing circuit as the dedicated hardware 2000, and functions other than the function of the screen display unit 124 may be realized by at least one processor 1000a reading and executing a program stored in at least one memory 1000b.

[0113] Thus, the processing circuitry implements the functions of the information server 120 in hardware 2000, software, firmware, or a combination thereof.

[0114] The information server 120 may be implemented on a cloud server. In this case, the processing circuit is composed of multiple partial circuits. The multiple partial processing circuits are provided in multiple devices that make up the cloud server. The multiple devices that make up the cloud server may each be provided in a different building.

[0115] Although not shown, the functions of the intermediate server 110, the viewing terminal 4, and the camera 20 are also realized by processing circuits equivalent to the processing circuits that realize the functions of the information server 120.

[0116] According to the first embodiment described above, the management system 1 includes a server serving as the management server 3 and an imaging unit 2. The imaging unit 2 includes a communication device 10 and a camera 20. The management server 3 includes a screen display unit 124. The screen display unit 124 displays the video of the construction site captured by the camera 20 on the screen of the viewing terminal 4. Since the on-site agent and the safety and health instructor are responsible for multiple construction sites, it is difficult for them to be present at one construction site at all times. The on-site agent and the safety and health instructor can view the video of the construction site on the screen of the viewing terminal 4 even when they are located away from the construction site. The video allows the on-site agent to grasp the situation at the construction site in detail. As a result, the workload of the people involved in the construction work can be reduced. It is known that a high level of awareness of being monitored reduces the rate at which workers at a construction site are injured during work. Furthermore, the workers at the construction site are aware that video is being streamed from the camera 20. This improves worker safety.

[0117] Furthermore, viewing terminal 4 may be a terminal carried by a worker at the construction site. For example, even if the worker is working at a location away from camera 20, the worker can know the situation of the site captured by camera 20 via viewing terminal 4. For example, the worker can proceed with his or her own work according to the situation of the site captured by camera 20. As a result, the work efficiency of the worker can be improved.

[0118] Camera 20 also has light 22. Screen display unit 124 displays alert button B2 on the screen of viewing terminal 4. When alert button B2 is pressed, light 22 lights up. For example, when a site supervisor wants to warn a worker captured on camera 20 that the condition of the scaffolding is different from usual, he or she operates and presses alert button B2. When light 22 lights up, the worker captured on camera 20 can notice that some kind of warning is being given. As a result, worker safety can be improved.

[0119] The imaging unit 2 also includes four cameras 20: a first camera 20a, a second camera 20b, a third camera 20c, and a fourth camera 20d. Each of the four cameras 20 is installed at a different location on the elevator construction site and captures video from that location. The screen display unit 124 simultaneously displays the video from each location. This allows the site manager and safety and health instructor to simultaneously view the video of the construction site. In particular, elevator construction sites have the unique characteristic of being vertically connected by the elevator shaft 201. For example, work performed in the machine room 202 above may affect the work environment of the pit 204 below. At such a construction site, video captured at each vertical location is simultaneously displayed, allowing the site manager to simultaneously grasp the situation remotely. This improves worker safety. Furthermore, the site manager can grasp the status of the construction site in more detail and more quickly.

[0120] The first storage unit 111 may delete the video at regular intervals or may store it permanently. In either case, the video can be viewed later. For example, even if a construction problem or a safety problem occurs, the cause of the problem can be identified based on the video stored in the first storage unit 111.

[0121] Furthermore, according to the first embodiment, the communication unit included in the imaging unit 2 includes a holder 50. The holder 50 includes a first holder 51 and a second holder 52. The repeater 40 is held inside the elevator shaft 201 by the holder 50. It is known that radio waves do not easily travel inside the elevator shaft 201. By holding a device that generates radio waves inside the elevator shaft 201, the radio wave communication conditions inside the elevator shaft 201 can be improved.

[0122] Furthermore, the second holder 52 holds the repeater 40 so that the antenna surface 41 of the repeater 40 faces the pit 204. This makes it possible to improve the communication conditions in the pit 204.

[0123] The holder 50 further includes a plurality of magnets 53. The alignment direction of the plurality of magnets 53 is parallel to the antenna surface 41. Therefore, when the holder 50 is holding the repeater 40, the antenna surface 41 is perpendicular to the longitudinal direction of the rail 205. This can improve the communication conditions in the longitudinal direction of the elevator shaft 201 and in the pit 204, for example.

[0124] Furthermore, the magnetic force of the magnets 53 is designed to have sufficient attractive force, so that the holder 50 can securely hold the relay 40. As a result, the relay 40 is prevented from falling.

[0125] The holder 50 further includes bolts 54 for attaching the relay unit 40. Therefore, the relay unit 40 can be attached to the holder 50 stably.

[0126] The holder 50 may further include a mounting magnet for mounting the repeater 40. This allows the repeater 40 to be mounted on the holder 50 in a state that makes it easier to mount and remove.

[0127] Furthermore, the length of first holder 51 in the short direction is shorter than the horizontal width of bottom 205b of rail 205. Therefore, even when first holder 51 is attached to rail 205, the surface where first holder 51 is attached to bottom 205b does not protrude from bottom 205b. Furthermore, even if other equipment is present right next to bottom 205b, first holder 51 is securely attached to bottom 205b. Therefore, holder 50 can be stably attached to rail 205 without interfering with other equipment.

[0128] Furthermore, the longitudinal length of the second holder 52 is shorter than the length of one side of the repeater 40. It is desirable that the repeater 40 be installed according to a directional direction. Therefore, the space occupied by the repeater 40 in the held state is determined according to the shape of the repeater 40. When the repeater 40 is held by the second holder 52, the second holder 52 does not protrude from the space occupied by the repeater 40. Therefore, it is possible to prevent the position where the repeater 40 is placed from being limited due to, for example, the shape of the holder 50.

[0129] The holder 50 further includes a fall prevention body 55. This prevents the relay 40 from falling and colliding with the pit 204, the upper surface of the car 206, etc. As a result, the relay 40 is prevented from breaking down. Furthermore, the safety of workers can be improved.

[0130] Furthermore, in the communication unit, the repeater 40 receives power from the communication device 10 via the communication cable 32. Therefore, there is no need to supply power to the repeater 40 from, for example, a power outlet. This eliminates the need to prepare a separate cable for supplying power, and it is possible to avoid risks such as the cable falling or interfering with construction work. Furthermore, the location where the repeater 40 can be placed is not limited by the location of a power outlet or the like. This improves the flexibility of placement of the repeater 40.

[0131] In addition, in the first embodiment, the authentication system included in the management server 3 includes a first display unit 127, a second display unit 128, and a release unit 129, which are functions realized by a program. When the location specified on the second map is within the authentication distance from the authentication location, the security is released. Because no authentication icon is displayed on the second map, the person who can release the security is the person who can identify the authentication location on the map. Therefore, the authentication system allows the security to be released by a person who has knowledge of specific information. Furthermore, since the security can be released by the simple method of specifying a location on the second map, user convenience can be improved. For example, a safety and health instructor at a construction site is a person who knows the location of the construction site, which is the authentication location, based on other information. The safety and health instructor can release the security for accessing video information with simple operations that are intuitively understandable.

[0132] The authentication system further includes a first authentication unit 125. A first display unit 127 displays the first map on a viewing terminal 4 that has been enabled to access the inside of network N3 by first authentication unit 125. In this way, two levels of security are set, thereby improving the security of the authentication system.

[0133] In addition, the authentication distance is set to 50 m. Because the condition for releasing security by the release unit 129 is that a person specifies a location on a map, if the authentication distance is too narrow, it becomes difficult for the person to release the security. On the other hand, if the authentication distance is too wide, security decreases. By setting the authentication distance to 50 m, a person who knows the authentication location can easily specify the location, and it is possible to prevent a person who does not know the authentication location from erroneously specifying the location.

[0134] Furthermore, the authentication location is the construction site where the elevator is being constructed. Generally, an elevator construction site is indicated on a map as a specific point on a building. In this case, the authentication location directly corresponds to the elevator construction site. Therefore, the authentication location and the location on the map that a person who knows the information about the construction site recognizes as the location of the construction site match. As a result, the authentication location can be easily identified to a person who knows the specific information, such as the location of the elevator construction site.

[0135] Furthermore, when an authentication icon shown on the first map is selected, the second display unit 128 displays a second map whose scale is the boundary threshold value, so that a person who wants to release the security can easily display the second map including the authentication location.

[0136] Furthermore, when the first map is enlarged, the second display unit 128 displays a second map whose scale is the boundary threshold. That is, even if the first map is enlarged so that the scale of the first map exceeds the boundary threshold, the second map whose scale is the boundary threshold is displayed. This makes it less likely that a person will lose track of the authentication position due to excessive enlargement. Furthermore, it is possible to prevent a person from identifying the authentication position on the second map by enlarging the first map using the authentication icon on the first map as a landmark. As a result, security can be improved.

[0137] In the first embodiment, the management system 1 includes a management server 3 and an imaging unit 2. The management server 3 includes a first storage unit 111, a date and time management unit 112, a location management unit 122, and a video management unit 123. The camera 20 captures images or videos in association with date and time information received from the date and time management unit 112. The location management unit 122 manages the location of the imaging unit 2. The video management unit 123 stores information about images or videos captured by the camera 20 in association with location information about the imaging unit 2. The date and time information and location information held by the camera 20 are somewhat unstable and may change from time to time. The location of the camera 20 is managed as the location of the imaging unit 2 based on location information received once, so that the information does not change, for example, every time the camera 20 captures an image. The date and time information of the camera 20 is unified by the date and time information managed by the management server 3, so that the information does not change depending on the internal time of the camera 20. This allows the date, time, and location of captured images or videos to be accurately managed.

[0138] Furthermore, the imaging unit 2 includes at least two cameras 20, which are divided into an advance camera 20 and a follow-up camera 20. Both the advance camera 20 and the follow-up camera 20 capture images using the date and time information transmitted from the date and time management unit 112. This makes it possible to accurately and easily synchronize the times of images captured by the same imaging unit 2.

[0139] Furthermore, in the imaging unit 2, the first camera 20 transmits its own first position information to the management server 3 first. In this case, even if the subsequent camera 20 transmits its own second position information, the position of the imaging unit 2 is managed by the first position information. Since the position of the subsequent camera 20 is managed by the position of the imaging unit 2, the position of the subsequent camera 20 is managed by the first position information. This makes it possible to prevent information on the positions where images or videos captured by multiple cameras 20 were captured from becoming inconsistent.

[0140] The management server 3 also includes a screen display unit 124. The screen display unit displays the images captured by the multiple cameras 20 on the screen so that the images are played back with the dates and times synchronized. This allows the site manager or the like to more accurately check the images captured by the multiple cameras 20. For example, the site agent can simultaneously grasp the situation remotely. As a result, the safety of workers can be improved.

[0141] Furthermore, the screen display unit 124 displays a timeline screen. Therefore, it is possible to easily know from the viewing terminal 4 what date and time relationships were used to capture the video using the multiple cameras 20, and what combination of cameras 20 was used.

[0142] Furthermore, the video management unit 123 associates the captured image or video information with site information of the construction site. In particular, the construction site is an elevator construction site. Therefore, there is no need for a person to perform the process or work of associating the image or video information with the site information of the construction site. As a result, the workload of workers and the like can be reduced. As a result, workers and the like can easily perform the work of capturing images or videos.

[0143] The management system 1 may be applied to an elevator system that does not have a machine room and in which a hoisting machine and the like are provided at the bottom or top of the elevator shaft. [Industrial Applicability]

[0144] As described above, the management system 1 according to the present disclosure can be used for safety management of elevator system construction work. [Explanation of symbols]

[0145] 1 Management system, 2 Imaging unit, 3 Management server, 4 Viewing terminal, 10 Communication device, 11 Main body, 12 Installation stand, 20 Camera, 20a First camera, 20b Second camera, 20c Third camera, 20d Fourth camera, 21 Lens, 22 Light, 23 Power light, 24 First function light, 25 Second function light, 26 First function button, 27 Second function button, 30 Network hub, 31 Communication cable, 32 Communication cable, 40 Repeater, 41 Antenna surface, 42 Mounting surface, 50 Holder, 51 First holder, 52 Second holder, 52a Through hole, 52s Holding surface, 53 Magnet, 54 Bolt, 55 Fall prevention body, 56 Wire, 57 Hook, 60 Power supply machine, 110 intermediate server, 111 first memory unit, 112 date and time management unit, 120 information server, 121 second memory unit, 122 location management unit, 123 video management unit, 124 screen display unit, 125 first authentication unit, 126 second authentication unit, 127 first display unit, 128 second display unit, 129 release unit, 200 elevator device, 201 hoistway, 202 machine room, 203 truss, 204 pit, 205 rail, 205a head, 205b bottom, 205s surface, 206 car, 207 car room, 208 car fence, 300 building, 1000a processor, 1000b memory, 2000 Hardware, B1 Seek bar, B2 Alert button, F Form, I Authentication icon, N1 Network, N2 Network, N3 Network, S Thumbnail

Claims

1. A server; an imaging unit that is placed at a construction site of the elevator and is capable of communicating with the server; Equipped with The imaging unit a communication device capable of communicating with the server via a network; a camera that is placed in any one of the machine room, the inside of the car, the intermediate portion of the elevator shaft, and the pit of the elevator shaft, and that transmits the captured image of the construction site to the server via a communication device; and The server a screen display unit that displays the image received from the camera on the screen of the viewing terminal; and The camera is Illuminating lights, and the screen display unit selectably displays an alert button at a position corresponding to the image received from the camera; The light illuminates when the alert button is pressed. Management system.

2. The imaging unit The camera includes a first camera disposed in the machine room; A second camera is arranged inside the car and transmits the captured image of the construction site to the server via the communication device; A third camera is arranged in the middle of the elevator shaft and transmits the captured image of the construction site to the server via the communication device; A fourth camera is arranged in a pit of the elevator shaft and transmits the captured image of the construction site to the server via the communication device; and The management system described in claim 1, wherein the screen display unit simultaneously displays the image received from the first camera, the image received from the second camera, the image received from the third camera, and the image received from the fourth camera on the screen of the viewing terminal.

3. 3. The management system according to claim 1, wherein the screen display unit displays the image on a screen of the viewing terminal carried by a worker at the construction site.

Images