Elevator remote monitoring system and method

Abstract

To maintain proper remote monitoring of an elevator even when a line for distributing digital contents and a line for remote monitoring of the elevator are common.SOLUTION: A remote monitoring server determines whether or not a use state of a line common to the remote monitoring and the digital contents distribution is equal to or higher than a certain situation when a service request that is a request for service about the remote monitoring is accepted. This determination is based on a utilization rate of the line and whether or not a digital content is being downloaded to the elevator. When a result of the determination is true, the remote monitoring server requests a content server to stop the downloading of the digital content to the elevator.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates generally to remote monitoring of elevators. [Background technology]

[0002] In recent years, many communications such as operation monitoring and abnormality monitoring have been performed for remote monitoring of elevators. The elevator car is also one of the targets of remote monitoring. In Patent Document 1, a communication device is installed in the elevator car, and multiple wireless devices are installed in the elevator shaft, and wireless communication is performed between the communication device and the wireless devices. The communication device selectively performs broadcast communication and unicast communication with the wireless devices using a first frequency and a second frequency. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-93485 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, live and streaming video content has become commonplace across a variety of media, resulting in the transmission of large volumes of data. One example of video content is advertising content, and a service is currently being offered that delivers advertising content to elevators. Digital content other than video content can also be distributed.

[0005] The distribution of video content, such as advertising content, requires sufficient line capacity. If both the distribution of video content and communications for remote elevator monitoring were conducted over a common line, the line would be congested by the distribution of video content, potentially making it difficult to smoothly carry out communications related to remote monitoring, which requires urgent attention. Congestion of the line can occur due to the distribution of digital content other than video content, or for other reasons.

[0006] The present invention has been made in consideration of the above points, and aims to maintain appropriate remote monitoring of elevators even when the line for distributing digital content and the line for remote monitoring of elevators are the same. [Means for solving the problem]

[0007] When the remote monitoring server receives a service request for remote monitoring services, it determines whether the line usage status common to remote monitoring and digital content distribution is above a certain level. This determination is based on the line usage rate and whether digital content is being downloaded to the elevator. If the result of this determination is true, the remote monitoring server requests the content server to stop downloading video content to the elevator. [Effects of the Invention]

[0008] According to the present invention, even if a line for distributing digital content and a line for remote monitoring of elevators are shared, it is possible to maintain appropriate remote monitoring of elevators. [Brief explanation of the drawings]

[0009] [Figure 1] 1 shows an example of the configuration of an entire system including a remote monitoring system according to an embodiment of the present invention. [Figure 2] 1 shows an example of the configuration of a service terminal. [Figure 3] An example of the configuration of a remote monitoring server is shown below. [Figure 4] 10 shows an example of the structure of a building management table. [Figure 5] 1 shows an example of the configuration of a content server. [Figure 6] 10 shows an example of the configuration of a content management table. [Figure 7] This shows the flow when a direct call occurs during content distribution. [Figure 8] The flow when operational monitoring occurs during content distribution is shown below. [Figure 9] This is a display screen for notifying the user that downloading has stopped when a direct call occurs. [Figure 10] This is a display screen for notifying the user that downloading has resumed when direct communication has ended. DETAILED DESCRIPTION OF THE INVENTION

[0010] In the following description, an "interface apparatus" may refer to one or more communication interface devices. The one or more communication interface devices may be one or more homogeneous communication interface devices or two or more heterogeneous communication interface devices.

[0011] In the following description, "memory" refers to one or more memory devices, typically a primary storage device. At least one of the memory devices may be a volatile memory device or a non-volatile memory device.

[0012] In the following description, a "persistent storage device" may refer to one or more persistent storage devices, which are an example of one or more storage devices. A persistent storage device may typically be a non-volatile storage device (e.g., an auxiliary storage device), and specifically may be, for example, a hard disk drive (HDD), a solid state drive (SSD), a non-volatile memory express (NVME) drive, or a storage class memory (SCM).

[0013] In the following description, the term "storage device" may refer to at least one of memory and persistent storage device.

[0014] Furthermore, in the following description, a "processor" may refer to one or more processor devices. The at least one processor device may typically be a microprocessor device such as a CPU (Central Processing Unit), but may also be another type of processor device such as a GPU (Graphics Processing Unit). The at least one processor device may be a single-core or multi-core. The at least one processor device may also be a processor core. The at least one processor device may also be a processor device in a broader sense, such as a circuit that is a collection of gate arrays written in a hardware description language that performs some or all of the processing (for example, an FPGA (Field-Programmable Gate Array), a CPLD (Complex Programmable Logic Device), or an ASIC (Application Specific Integrated Circuit)).

[0015] In the following description, functions are sometimes described using the expression "yyy unit." However, the functions may be realized by one or more computer programs executed by a processor, by one or more hardware circuits (e.g., FPGAs or ASICs), or by a combination thereof. When a function is realized by a program executed by a processor, the specified processing is performed using a storage device and / or an interface device, etc., as appropriate, and therefore the function may be considered to be at least a part of the processor. Processing described using a function as the subject may be processing performed by a processor or a device having the processor. A program may be installed from a program source. The program source may be, for example, a program distribution computer or a computer-readable storage medium (e.g., a non-transitory storage medium). The description of each function is merely an example; multiple functions may be combined into one function, or one function may be divided into multiple functions.

[0016] In the following description, information that provides an output for an input may be described using expressions such as "xxx table." However, this information may be data of any structure (for example, structured data or unstructured data), or may be a neural network that generates an output for an input, or a learning model such as a genetic algorithm or random forest. Therefore, the "xxx table" may be referred to as "xxx information." In the following description, the table configuration is an example, and one table may be divided into two or more tables, or all or part of two or more tables may be one table.

[0017] In the following description, when elements of the same type are described without distinction, common reference symbols are used, and when elements of the same type are described with distinction, reference symbols are used.

[0018] In the following description, the ID of an element is identification information of the element, and may be any information (for example, a name or alphanumeric characters) that can identify the element.

[0019] An embodiment of the present invention will be described below with reference to the accompanying drawings. In the following embodiment, video content will be taken as an example of digital content to be distributed.

[0020] FIG. 1 shows the overall configuration of a system including a remote monitoring system according to this embodiment.

[0021] This remote monitoring system comprises an elevator 2 installed in the same building and a remote monitoring server 12 that remotely monitors the elevator 2 via a line 22 (e.g., the Internet). The elevator 2 has a car 21, a remote monitoring device 3, an elevator control device 4, a service terminal 5, and a communication device 10. The remote monitoring server 12 is provided in a remote monitoring center 11. The remote monitoring center 11 has a staff terminal 13 that communicates with the remote monitoring server 12. The staff terminal 13 is an information processing terminal (client) of the person in charge of remote monitoring.

[0022] There is a content server 15 that distributes video content (video data) to the elevator 2 via line 22. In this embodiment, "downloading" video content means, for the content server 15, distributing the video content to the elevator 2, and for the elevator 2, receiving the video content from the content server 15. The content server 15 is provided in the content providing center 14.

[0023] A communication device 10 communicates with a remote monitoring server 12 and a content server 15 via a line 22, monitors traffic on the line 22, and prioritizes packets.

[0024] The car 21 is equipped with a display device 6, a microphone 7, a speaker 8, and an emergency button 9, and moves vertically, diagonally, or horizontally (typically horizontally) while carrying people (passengers 1) and luggage.

[0025] The remote monitoring device 3 is a device that monitors the operation status of the elevator 2. The operation status of the elevator 2 may include, for example, at least one of the floor on which the car 21 is located, the operation status of the call button in the elevator hall on each floor, and the pressed status of the destination floor button on the control panel inside the car 21. When an abnormality occurs in the elevator 2, the remote monitoring device 3 issues a report to the remote monitoring server 12 via the communication device 10.

[0026] The elevator control device 4 is installed above or near the elevator car 21 and controls the operation of the elevator.

[0027] The service terminal 5 is installed near the car 21 and controls a display device 6 (for example, a liquid crystal display CPI), a microphone 7, a speaker 8, and an emergency button 9 mounted on the car 21. The service terminal 5 can schedule the video content to be displayed on the display device 6, etc.

[0028] In the remote monitoring center 11, the person in charge terminal 13 can display information indicating the operation status (for example, occurrence of an abnormality) of the elevators 2 in each building through communication with the remote monitoring server 12.

[0029] In the content providing center 14, the content server 15 holds video content (for example, video content related to weather forecasts, daily news, advertisements, etc.). The content server 15 distributes the video content to the elevator 2. The video content distribution may be performed in response to a request from the manager terminal 16 (an information processing terminal of the building manager 17) or another terminal.

[0030] A car reservation server 51 may be provided. The car reservation server 51 may accept car reservations (reservations for the car number in a building and to which floor to allocate) from a user terminal (an information processing terminal of a user of the elevator 2) not shown via the line 22, and manage car reservations. The car reservation server 51 may transmit a car allocation request (for example, a car allocation request specifying the car number, the destination floor, and the arrival time at the destination floor) to the elevator 2 via the line 22. The car allocation request is a request for allocation of a car reserved for allocation, and may be received by the remote monitoring device 3 via the communication device 10. The remote monitoring device 3 may transmit the car allocation request to the elevator control device 4 corresponding to the car number. In response to the car allocation request, the elevator control device 4 may allocate the car 21 to the floor specified in the request. Note that the user in the car 21 is the passenger 1.

[0031] An equipment management server 52 may be provided. The equipment management server 52 may receive an equipment management request (e.g., an equipment management request specifying a building or an elevator) from the manager terminal 16 via the line 22, and in response to the request, may monitor the status of the elevator equipment (e.g., the elevator control device 4, the air conditioner of the car 21, etc.) via the line 22. The equipment management request may be a request for equipment monitoring, which is to monitor the status of the equipment of the elevator 2 via the line 22. In response to the request, the equipment management server 52 may perform equipment monitoring via the line 22 and display information indicating the results of the monitoring on the manager terminal 16.

[0032] Any of the servers 12, 15, 51, and 52 may be a physical server or a logical server (for example, a server as a virtual machine or a cloud server based on a cloud infrastructure).

[0033] FIG. 2 shows an example of the configuration of the service terminal 5.

[0034] The service terminal 5 comprises an interface device 201, a storage device 202 and a processor 203 connected thereto.

[0035] The interface device 201 communicates with the elements 6 to 9 provided in the car 21 and the elevator control device 4. The storage device 202 stores video content 221 downloaded from the content server 15 via the communication device 10.

[0036] The processor 203 reads and executes a computer program from the storage device 202, thereby realizing functions such as a service control unit 211 and a content I / O unit 212. The service control unit 211 controls processing through elements 6 to 9 provided in the car 21. The content I / O unit 212 downloads video content 221 from the content server 15 and stores it in the storage device 202, and displays the video represented by the video content 221 on the display device 6.

[0037] FIG. 3 shows an example of the configuration of the remote monitoring server 12.

[0038] The remote monitoring server 12 includes an interface device 301, a storage device 302, and a processor 303 connected thereto.

[0039] The interface device 301 performs communication via the line 22. The storage device 302 stores a building management table 321.

[0040] The processor 303 reads and executes a computer program from the storage device 302, thereby realizing functions such as a service determination unit 311 and a processing control unit 312. The service determination unit 311 performs service determination, which will be described later. The processing control unit 312 performs control such as stopping and restarting the download of video content.

[0041] FIG. 4 shows an example of the structure of the building management table 321.

[0042] The building management table 321 has an entry for each elevator number. Each entry is data representing an ID (building ID), building name (name of building), global IP (IP address linked to the communication device 10 of the building), line type (type of line), elevator number (elevator number of elevator 21), local IP (IP address of the remote monitoring device 3), and download flag (whether video content is being downloaded to the elevator number). Examples of line types include an analog line, a 4G line, and a 5G line. The elevator number may be set when there are multiple elevators in the same building.

[0043] FIG. 5 shows an example of the configuration of the content server 15.

[0044] The content server 15 includes an interface device 501, a storage device 502, and a processor 503 connected thereto.

[0045] The interface device 501 performs communication via the line 22. The storage device 502 stores video content 521 and a content management table 522.

[0046] The processor 503 reads and executes a computer program from the storage device 502, thereby realizing functions such as a content distribution unit 511 and a display control unit 512. The content distribution unit 511 distributes (downloads) video content 521. The display control unit 512 controls the display of notifications for stopping and resuming the download of the video content 521.

[0047] FIG. 6 shows an example of the configuration of the content management table 522.

[0048] The content management table 522 is stored in the content server 15 (and the remote monitoring server 12). The content management table 522 has an entry for each video content. The entry is data representing an ID (video content ID) and a content name (video content name).

[0049] According to the above description with reference to FIGS. 1 to 6, for example, the following is true.

[0050] The elevator 2 has a car 21 equipped with a display device 6. The elevator 2 downloads video content from a content server 15 via a line 22 and displays the video represented by the video content on the display device 6. The remote monitoring server 12 remotely monitors the elevator 2 via the line 22 used to download the video content.

[0051] The remote monitoring server 12 stores data indicating whether video content is being downloaded to the elevator 2. For example, when the content server 15 downloads video content to the elevator 2, the remote monitoring server 12 may receive from the content server 15 an ID such as the name of the video content to be downloaded and an ID such as the name of the car or building to which the video content is to be downloaded, and turn on (“1”) a download flag for that car (a download flag in the building management table 321). Alternatively, for example, when the administrator terminal 16 sends a download request (e.g., a download request specifying an ID such as the name of the video content to be downloaded and an ID such as the name of the car or building to which the video content is to be downloaded) to the content server 15, the remote monitoring server 12 may receive from the administrator terminal 16 an ID such as the name of the video content to be downloaded and an ID such as the name of the car or building to which the video content is to be downloaded, and turn on a download flag for that car.

[0052] When the remote monitoring server 12 receives a service request for a remote monitoring service from the elevator 2 or the administrator terminal 16, it performs a service determination to determine whether the usage status of the line 22 is above a certain level. Whether the usage status of the line 22 is above a certain level or not is based on the usage rate of the line 22 and whether video content is being downloaded to the elevator 2. For example, if the usage rate of the line 22 is above a threshold and video content is being downloaded to the elevator 2, the result of the service determination is true.

[0053] If the result of the service determination is true, the remote monitoring server 12 requests the content server 15 to stop downloading the video content. For example, the remote monitoring server 12 may store data indicating the name of the video content being downloaded for each elevator 2 (car 21) that is downloading video content, and the request to stop the download may specify the name of the video content to be stopped from downloading.

[0054] In response to the request to stop the download, the content server 15 stops the download of the video content being downloaded (for example, the video content specified in the request). This frees up bandwidth on the line 22, which is expected to allow services related to remote monitoring (for example, services with high urgency) to be given priority (maintaining the quality of services via the line 22).

[0055] An example of the processing performed in this embodiment will be described below.

[0056] Figure 2 shows the flow when a direct call occurs during content distribution.

[0057] (S201) The administrator terminal 16 makes a request to download video content (for example, a request specifying the name of the video content to be downloaded and the download destination (for example, building, elevator 2, unit number, global IP, and local IP)) to the content server 15. The administrator terminal 16 or the content server 15 notifies the remote monitoring server 12 of the name of the video content to be downloaded.

[0058] (S202) Upon receiving the request to download the video content, the content server 15 starts downloading the video content to the remote monitoring device 3 of the elevator 2.

[0059] (S203) While the video content is being downloaded, the passenger 1 presses the emergency button 9 in the car 21, causing a request for direct communication to be sent from the remote monitoring device 3 to the remote monitoring server 12. For this reason, the line bandwidth used for downloading the video content may be limited to a certain capacity or less, and priority control may be performed to ensure that the direct communication request reaches the remote monitoring center. Direct communication means that the passenger 1 in the car 21 uses the microphone 7 and speaker 8 to talk with the controller over the line 22.

[0060] (S204) Upon receiving the direct call request, the remote monitoring server 12 performs a service determination to determine whether the usage status of the line 22 is above a certain level. The determination of whether the usage status of the line 22 is above a certain level is based on the following (x), whether the following (y) is above a threshold value corresponding to the following (x), and the following (z): (x) The line type corresponding to the elevator car 21 from which the direct call originated (the line type represented by the data in the building management table 321). (y) The utilization rate of the line 22 monitored by the communication device 10. (z) Download flag corresponding to car 21 from which direct communication originated.

[0061] Specifically, for example, if both of the following (p) and (q) are satisfied, the result of the service determination is true. (p) The type of line 22 is “analog” and the usage rate of line 22 is equal to or greater than the threshold X corresponding to the line type “analog”, or the type of line 22 is “4G” and the usage rate of line 22 is equal to or greater than the threshold Y corresponding to the line type “4G”, or the type of line 22 is “5G” and the usage rate of line 22 is equal to or greater than the threshold Z corresponding to the line type “5G” (for example, X <Y<Z)。 (q) The download flag is set.

[0062] If the result of the service determination is true, a request to stop the download is made in S205. Here, the "utilization rate of the line 22" may be the ratio of the average number of packets flowing per unit time to the capacity of the line 22.

[0063] (S205) The remote monitoring server 12 transmits a request to stop the content download to the content server 15. The request may specify the name of the video content to be stopped from downloading, and the download destination (for example, the building, elevator 2, elevator number, global IP, and local IP).

[0064] (S206) The content server 15, which has received the stop request, stops downloading the video content. The content server 15 may notify the remote monitoring server 12, which is the sender of the stop request, that the stop has been completed.

[0065] (S207) Direct communication between the remote monitoring center 11 and the passenger 1 begins.

[0066] (S208) When the content server 15 stops downloading the video content, it notifies the administrator terminal 16, which is the sender of the download request for the video content, that the download of the video content has been stopped. At this time, the content server 15 sends a stop notification to the service terminal 5, and when the service terminal 5 receives the stop notification, it may display on the display device 6 a video represented by the video content that was downloaded in advance, or an image of the person in charge (controller) who has received the direct call notification at the remote monitoring center 11.

[0067] (S209) Upon receiving the notification that the download of the video content has been stopped, the administrator terminal 16 displays a stop message based on the stop notification. The stop notification may include data indicating the name of the video content whose download has been stopped and the download destination. An example of the display screen of the administrator terminal 16 at this time, i.e., the display screen of the stop message, is shown in FIG. 9.

[0068] (S210) After the direct conversation ends, the remote monitoring device 3 notifies the remote monitoring server 12 that the direct conversation has ended.

[0069] (S211) Upon receiving the notification of the end of the direct call, the remote monitoring server 12 sends a notification of the completion of the direct call (an example of a request to resume downloading of video content) to the content server 15.

[0070] (S212) Upon receiving the direct sum completion notification, content server 15 resumes the download of the video content that was stopped. Here, the video content may be delivered from the beginning, or the stop may be "interrupted" and the video content may be delivered from the middle (from the beginning of the untransmitted portion).

[0071] (S213) When the download is resumed, the content server 15 notifies the administrator terminal 16 that the download has resumed.

[0072] (S214) Upon receiving the notification that the download has resumed, the administrator terminal 16 displays a message indicating that the download has resumed based on the notification. An example of the display screen of the administrator terminal 16 at this time, i.e., the display screen indicating that the download has resumed, is shown in FIG. 10.

[0073] When the download of the video content to be downloaded is completed, the content server 15 may transmit a notification of the completion of the download to the administrator terminal 16, and the administrator terminal 16 may display a completion message based on the notification.

[0074] 3 shows a flow when operation monitoring occurs during content distribution. The explanation of processes that are the same as or similar to the processes explained with reference to FIG. 2 will be simplified.

[0075] (S301) The administrator terminal 16 transmits a download request for video content to the content server 15.

[0076] (S302) The content server 15 starts downloading to the remote monitoring device 3.

[0077] (S303) The manager terminal 16 requests operation monitoring from the remote monitoring server 12. Operation monitoring involves monitoring the operation status of the elevator 2 via the line 22.

[0078] (S304) The remote monitoring server 12 performs a service determination. If the determination result in S304 is true, a request to stop downloading is made in S305.

[0079] (S305) The remote monitoring server 12, which has received the operation monitoring request, transmits a download stop request to the content server 15.

[0080] (S306) The content server 15 stops the download and sends a stop notification to the administrator terminal 16.

[0081] (S307) The administrator terminal 16 displays a stop message based on the stop notification.

[0082] (S308) The manager terminal 16 connects to the remote monitoring device 3 via the line 22 for operation monitoring, and performs operation monitoring via the line 22.

[0083] (S309) When the operation monitoring is completed, the remote monitoring device 3 transmits a notification of the completion of operation monitoring to the remote monitoring server 12.

[0084] (S310) Upon receiving the notification that operation monitoring has ended, the remote monitoring server 12 transmits a notification of completion of operation monitoring to the contents server 15.

[0085] (S311) Upon receiving the notification, the content server 15 resumes the download.

[0086] (S312) When the download is resumed, the content server 15 notifies the administrator terminal 16 to that effect.

[0087] (S313) Upon receiving the notification, the administrator terminal 16 displays a message to resume the download.

[0088] According to the above description with reference to FIGS. 7 to 10, for example, the following is true.

[0089] The remote monitoring server 12 stores data indicating the type of line 22 (e.g., 5G, 4G, analog, etc.). Whether the usage status of the line 22 is above a certain level is determined based on whether the usage rate of the line 22 is above a threshold corresponding to the type of line 22 and whether video content is being downloaded to the elevator 2. As a result, when video content is being downloaded, whether the download is stopped or not differs depending on the line type. In other words, remote monitoring (and selection of whether to stop the download or not) is possible according to the line type. Whether the usage status of the line 22 is above a certain level may be determined based on at least one of the following, instead of or in addition to the line type, in addition to the usage rate of the line 22 and a download flag corresponding to the download destination. The number of elevators 2 or cars 21 whose download flag is on (currently downloading). The type or priority of video content being downloaded.

[0090] The service request for remote monitoring may be a direct call request, a traffic monitoring request, a car dispatch request, or a facility monitoring request. Direct call, traffic monitoring, car dispatch, or facility monitoring may be given priority over downloading video content.

[0091] When the remote monitoring server 12 detects that the processing in response to the service request (for example, direct communication, operation monitoring, car dispatching, or equipment monitoring) has been completed, it requests the content server 15 to resume downloading the video content. This allows the downloading of the video content to be resumed at an appropriate time.

[0092] The remote monitoring server 12 or the content server 15 performs at least one of the following actions (A) and (B), thereby notifying the administrator that the download has been stopped or restarted. (A) A message informing the administrator that the download has been stopped (which may include the name of the video content whose download has been stopped) is displayed on the administrator terminal 16. (B) A message informing the user that the download has resumed (which may include the name of the video content whose download has resumed) is displayed on the administrator terminal 16.

[0093] Although one embodiment has been described above, this is merely an example for explaining the present invention, and the scope of the present invention is not limited to only these embodiments. The present invention can be implemented in various other forms. [Explanation of symbols]

[0094] 1...passenger, 2...elevator, 3...remote monitoring device, 4...elevator control device, 5...service terminal, 6...display device, 7...microphone, 8...speaker, 9...emergency button, 10...communication device, 11...remote monitoring center, 12...administrator terminal, 13...remote monitoring server, 14...content providing center, 15...content server, 16...administrator terminal, 17...administrator

Claims

1. A system comprising: a plurality of elevators connected to a plurality of types of lines; a remote monitoring server that remotely monitors each of the elevators using a line that is used for downloading digital content and is connected to the elevator; Equipped with each of the plurality of elevators has a car and is configured to download digital content from a content server via a line connected to the elevator among the plurality of types of lines; the remote monitoring server stores data indicating whether digital content is being downloaded to each of the elevators, and data indicating the type of line for each of the plurality of types of lines; When the remote monitoring server receives a service request that is a request for a service related to remote monitoring of a target elevator that is one of the plurality of elevators, the remote monitoring server performs a service determination that determines whether or not the usage status of the line connected to the target elevator is equal to or greater than a certain status, Whether the usage status of the line is above a certain level or not is determined based on whether the usage rate of the line connected to the target elevator is above a threshold value according to the type of the line, and whether digital content is being downloaded to the target elevator via the line, When the usage rate of the line connected to the target elevator is equal to or higher than a threshold value according to the type of the line, and digital content is being downloaded to the target elevator through the line, the remote monitoring server determines that the usage status of the line is equal to or higher than a certain level, If the result of the service determination is true, the remote monitoring server requests the content server to stop downloading the digital content that is being downloaded to the target elevator. Remote monitoring system.

2. The service request is a direct communication request, an operation monitoring request, a car dispatch request, or an equipment monitoring request; The direct talk request is a request for direct talk by a passenger in the car of the target elevator to talk with a controller through the line connected to the target elevator using a microphone and speaker of the car, the operation monitoring request is a request for operation monitoring to monitor the operation status of the target elevator through the line connected to the target elevator, the car dispatch request is a request to dispatch the car reserved for dispatch of the target elevator via the line connected to the target elevator, The equipment monitoring request is a request for equipment monitoring to monitor the equipment status of the target elevator through the line connected to the target elevator. The remote monitoring system of claim 1 .

3. When the remote monitoring server detects that the processing in response to the service request has been completed, the remote monitoring server requests the resumption of download of the digital content whose download has been stopped. The remote monitoring system of claim 1 .

4. The remote monitoring server or the content server performs at least one of the following (A) and (B): (A) Displaying a message informing the administrator that the download has been stopped on the administrator terminal, which is the administrator's information processing terminal. (B) displaying a message on the administrator terminal informing the administrator that the download has resumed; The remote monitoring system of claim 1 .

5. A remote monitoring method for remotely monitoring each of a plurality of elevators connected to a plurality of types of lines via the lines connected to the elevators, comprising: a determination step of performing a service determination, in which, when a service request is received that is a request for a service related to remote monitoring of a target elevator that is one of the plurality of elevators, the determination step determines whether or not the usage status of a line connected to the target elevator is above a certain level; a stop request step of requesting the content server to stop downloading the digital content if the result of the service determination is true; is performed by a computer, Whether the usage status of the line is above a certain level or not is determined based on whether the usage rate of the line connected to the target elevator is above a threshold value corresponding to the type of line connected to the target elevator among the multiple types of lines, and whether digital content is being downloaded to the target elevator through the line, In the determination step, if the usage rate of the line connected to the target elevator is equal to or higher than a threshold value corresponding to the type of the line, and digital content is being downloaded to the target elevator through the line, it is determined that the usage status of the line is equal to or higher than a certain status. Remote monitoring methods.

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