JP6833237B1 - Direct talk device and call system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the load of a management server computer for obtaining information on an elevator in a communication system for connecting an intercom in a car and an external telephone so as to be able to make a call. A direct-talking device uploads a status notification file to a cloud server in response to a call request, and transmits an instruction to download the status notification file from the cloud server to a management server computer. The management server computer displays information about the elevator on the monitor based on the contents of the downloaded status notification file. The direct talk device initiates a call between the intercom and the telephone after transmitting the instruction. Elevator information can be confirmed in advance when the operator of the management center talks with the occupants of the elevator car. Since the management server computer can download a plurality of status notification files simply by connecting to the cloud server, the load required for managing a plurality of direct-speaking devices can be reduced. [Selection diagram] Fig. 1

Description

The present invention relates to a call system that connects an intercom installed in an elevator car to a telephone such as an external management center so that a call can be made. Specifically, an operator of the management center or the like makes a call between the intercom and the telephone. It relates to a calling system configured so that information about the elevator can be obtained at the start.

Patent Document 1 describes a remote monitoring support device that connects an elevator intercom and a telephone of a maintenance management company so that a telephone can be talked to via a telephone line, a management server computer installed in the maintenance management company, and the management server computer. Describes an elevator call management system, including a display device. In this call management system, when the emergency call button provided in the elevator basket is pressed and the call request is operated by the intercom, the remote monitoring support device sends a call request notification including the identification information of the elevator that made the call request. It is generated, sent to the management server computer, and then a call is made to a predetermined telephone. On the other hand, when the management server computer receives the call request notification, the display device causes the display device to display predetermined notification information based on the call request notification.

According to the call management system of Patent Document 1, when the emergency call button is operated, it is notified that the emergency call button is operated on the management server computer before the user and the operator start a call. As a result, it is possible to reliably inform the operator that there is a direct talk request, that is, a call. As a result, it is possible to encourage the operator to respond promptly to the subsequent call. For example, when all the telephones installed in the maintenance company are in a call, it is possible to guide the operator to call from another user to the operator who is in a call with the user. As a result, it is said that the anxiety of elevator users can be reduced by adjusting the talk time with the user during a call so that the operator can start a call with another user at an early stage. There is.

Japanese Unexamined Patent Publication No. 2019-210151

The call management system of Patent Document 1 notifies a direct call request from the remote monitoring support device to the management server computer. Therefore, when the management server computer monitors a large number of elevators, a large number of remote monitoring support devices may simultaneously send notifications to the management server computer, which increases the load on the management server computer and facilitates the process. There is a risk of impairing various processing.

The present invention obtains information about an elevator prior to starting a call between the intercom and the telephone in a communication system that connects an intercom installed in the elevator car and a telephone such as an external management center so as to be able to make a call. The purpose is to reduce the load on the management server computer.

In order to achieve the above object, the invention according to claim 1 comprises an interphone installed in an elevator car, a first communication line capable of communicating by voice signals, and a second communication line capable of connecting to the Internet. A communication line, a telephone connected to the first communication line, a management server computer connected to the first communication line and the second communication line, and a display device for displaying information on the management server computer. A communication system including a cloud server constructed on the Internet, a direct talk device that is electrically connected to an interphone and is connected to a first communication line and a second communication line, and is a direct talk device. Is a function to connect the interphone and the telephone so that they can talk via the first communication line, and a function to upload a status notification file which is data including information about the elevator to the cloud server via the second communication line. The management server computer has a function to download the status notification file from the cloud server via the second communication line and a function to display information about the elevator on the display device based on the status notification file. When the device receives a request to start a call between the interphone and the telephone, it uploads the status notification file to the cloud server, and also transmits an instruction to start downloading the status notification file to the management server computer, and transmits the instruction. It is set to start a call between the interphone and the telephone later.

When configured in this way, the direct talk device uploads a status notification file containing information about the elevator to the cloud server when there is a request to start a call between the intercom and the telephone, and also to the management server computer from the cloud server. Communicate instructions to download the status notification file. As a result, the management server computer downloads the status notification file from the cloud server and displays the information about the elevator on the display device based on the contents. On the other hand, the direct talk device initiates a call between the intercom and the telephone after transmitting the instruction.

In the invention according to claim 2, in addition to the configuration of the invention according to claim 1, the first communication line is a telephone line, and the instruction from the direct talk device to the management server computer is a telephone call. Is.

With this configuration, when the direct talk device issues a report to the management server computer through the telephone line, the management server computer downloads the status notification file from the cloud server.

In the invention according to claim 3, in addition to the configuration of the invention according to claim 2, when the management server computer receives an incoming call from the direct talk device, the telephone communication with the direct talk device is disconnected, and the direct talk The device is set to notify the telephone when the telephone communication with the management server computer is disconnected.

With this configuration, the direct-talking device issues a telephone call to the management server computer, and then notifies the telephone when the telephone communication is disconnected.

According to the invention described in claim 1, the management server computer displays information about the elevator on the display device based on the status notification file uploaded from the direct-speaking device, so that the operator of the management center can work with the occupants of the elevator car. Elevator information can be confirmed in advance when talking through an intercom or telephone. Management server When the computer manages multiple direct talk devices, multiple status notification files can be downloaded simply by connecting to the cloud server, so the management server required to manage multiple direct talk devices. The load on the computer can be reduced.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, since the communication using the telephone line specifies the connection destination by the telephone number, in principle, it is a one-to-one communication, and it is a direct conversation. Instructions can be reliably transmitted from the device to the management server computer. Moreover, since there is little time lag between outgoing and incoming calls, the immediacy of instruction transmission is excellent. Since telephone communication and Internet communication are independent, uploading a status notification file from the direct talk device to the cloud server and transmitting instructions to the management server computer are executed in parallel even during a call between the intercom and the telephone. can do.

According to the invention of claim 3, in addition to the effect of the invention of claim 2, since the notification is issued to the management server computer before the notification is sent to the telephone, the call between the interphone and the telephone is started. Before this, the management server computer can download the status notification file and display the information based on its contents on the monitor.

It is a block diagram which shows the schematic structure of the call system by embodiment of this invention. In the call system according to the embodiment of the present invention, a block diagram showing a situation in which a start signal is output, a status notification file is uploaded from the direct talk device to the cloud server, and a telephone call is issued to the management server computer. Is. FIG. 5 is a block diagram showing a situation in which a management server computer is downloading a status notification file from a cloud server in a communication system according to an embodiment of the present invention. It is a block diagram which shows the situation which the management server computer disconnected the telephone communication with a direct talk device in the telephone system by embodiment of this invention. It is a block diagram which shows the situation which the direct talk device issued a report to the telephone in the call system by embodiment of this invention. FIG. 5 is a block diagram showing a situation in which a call between an intercom and a telephone is started in a call system according to an embodiment of the present invention. FIG. 5 is a block diagram showing a situation in which an input is made from a push button of a car in a call system according to an embodiment of the present invention. FIG. 5 is a block diagram showing a situation in which a call between an intercom and a telephone is terminated in a call system according to an embodiment of the present invention. It is a time chart which shows the operation state of the direct talk device, the management server computer, and the cloud server in the communication system by embodiment of this invention. It is a block diagram which shows the situation which the alert was made from the external telephone to the direct talk device in the call system by embodiment of this invention. FIG. 5 is a block diagram showing a situation in which a status notification file is uploaded from a direct talk device to a cloud server and a telephone call is issued to a management server computer in a communication system according to an embodiment of the present invention. It is a block diagram which shows the situation which the management server computer disconnected the telephone communication with a direct talk device in the telephone system by embodiment of this invention. FIG. 5 is a block diagram showing a situation in which a call between an intercom and a telephone is started in a call system according to an embodiment of the present invention. FIG. 5 is a block diagram showing a situation in which a call between an intercom and a telephone is terminated in a call system according to an embodiment of the present invention. It is a time chart which shows the operation state of the direct talk device, the management server computer, and the cloud server when the call is issued from the external telephone to the direct talk device in the call system according to the embodiment of this invention.

[overall structure]
FIG. 1 is a block diagram showing a schematic configuration of a call system S according to an embodiment of the present invention.

The call system S of this example can be connected to the intercom 32 installed in the car 30 of the elevator, the activation means 31 for activating the intercom 32, the first communication line N1 capable of communicating by voice signals, and the Internet. The second communication line N2, the telephone 21 connected to the first communication line N1, the management server computer 24 connected to the first communication line N1 and the second communication line N2, and the management server. The monitor 25 as a display device for displaying computer information, the cloud server C constructed on the Internet, the intercom 32, and the activation means 31 are electrically connected, and the first communication line N1 and the second communication line N1 and the second. Includes a direct talk device 10 connected to the communication line N2.

(Intercom)
In the elevator car 30, an intercom 32 for talking to the outside and an activation means 31 for activating the intercom 32 are installed. The intercom 32 includes a microphone that collects sound (hereinafter, abbreviated as microphone 34) and a speaker 33 that outputs sound. The activation means 31 for activating the intercom 32 is composed of, for example, an emergency button. The intercom 32 and the activation means 31 are electrically connected to the direct talk device 10 by a signal line, and when the activation means 31 such as an emergency button is operated and the activation signal is output to the direct talk device 10, the intercom 32 talks. Configured to be prepared as possible. For example, when the emergency button is pressed, the intercom 32 is energized, the direct talk device 10 detects the start of energization, and transmission / reception of a voice signal to / from the direct talk device 10 is started. ..

(First communication line)
A telephone line is used as the first communication line N1, and for example, a communication line (LTE line) conforming to the LTE standard is used.

(Second communication line)
The second communication line N2 is a communication line for connecting the direct talk device 10 to the Internet. A line separate from the first communication line N1 may be used, but the route to the ISP (Internet Service Provider) used for connecting to the Internet is a telephone line which is the first communication line N1. You may use it.

(Call Management Center)
The call management center 20 is usually provided outside the building where the elevator is installed. In order to connect the telephone 21, the management server computer 24, and the management server computer 24 connected to the first communication line N1 to the first communication line N1 and the second communication line N2 in the call management center 20. Communication device 23, monitor 25 as a display device for displaying information held by the management server computer 24, and the like are installed. The management server computer 24 and the communication device 23 constitute the server device 22. A telephone number is assigned to the communication device 23 connected to the management server computer 24, and voice signal communication is possible between the direct talk device 10 and the management server computer 24.

(Cloud server)
The cloud server C is a virtual server constructed on the Internet, connects to the direct talk device 10 via a second communication line N2 that can connect to the Internet, and connects to the direct talk device 10 via the Internet. It is configured to enable data communication including data upload and download. The cloud server C is also configured to be able to connect to the management server computer 24 via the second communication line N2, and includes uploading and downloading data to and from the management server computer 24 via the Internet. Data communication is possible. Since the cloud server C is generally constructed assuming access from a plurality of computers, the reliability of data communication can be improved by using the cloud server C.

(Direct talk device)
The direct talk device 10 controls the communication means 14 for realizing the communication function, the voice processing means 11 for realizing the call function, the storage means 16 having a function of storing data, and the operation of each means. The control means 15 of the above is included.

The communication means 14 has a function of connecting the intercom 32 and the telephone 21 so as to be able to talk via the first communication line N1, and voices the direct talk device 10 and the management server computer 24 via the first communication line N1. It has a function of connecting to enable communication by a signal and a function of connecting the direct talk device 10 and the cloud server C via a second communication line N2 so as to enable data communication. In this example, when the first communication line N1 is an LTE line, the communication means 14 including the LTE communication module is used. LTE communication modules that comply with the LTE standard generally perform telephone communication and Internet communication wirelessly. Therefore, by using the communication means 14 that performs LTE communication, the interface provided in the direct talk device 10 can be simplified, and the installation work of the direct talk device 10 can be simplified.

The audio processing means 11 is for realizing the input / output of audio in the interphone 32, and is an audio signal conversion unit 12 that converts the type of audio signal (DA / AD conversion), codec processing of the audio signal, and frequency adjustment. , The signal adjusting unit 13 and the like for adjusting the signal strength and the like are included. The voice processing means 11 of this example processes the voice signal transmitted through the first communication line N1 (LTE line) with the telephone 21 into a voice signal that can be output as voice from the speaker 33 of the intercom 32. It has a function of processing an audio signal output from the microphone 34 of the intercom 32 at the time of sound collection into a signal that can be transmitted through the first communication line N1. Further, with the control means 15, the audio signal output from the control means 15 is converted into a signal that can be output as audio from the speaker 33, and the audio signal output from the microphone 34 at the time of sound collection is converted by the control means 15. It has a function of converting into a processable signal. Such a voice processing means 11 is realized by a voice board, a voice signal converter, or the like.

The storage means 16 has a function of rewritably storing various information data, a program for controlling various operations of the direct talk device 10, and various setting data. In particular, in this example, a status notification file, which is data including information about the elevator, is stored. The status notification file is uploaded to the cloud server C, and is data including a device number for identifying a car and a status type number indicating a communication status with a telephone. Multiple types of status type numbers are prepared according to the difference in communication status. Specifically, telephone call = 0, telephone answer = 1, responder name input = 2, telephone disconnection = 3, incoming call = 4. As such, a number is assigned to each state.

In addition, the storage means 16 also stores instruction information for causing the management server computer 24 to execute a specific operation. This example includes an instruction to periodically inquire the cloud server C about the existence of a new status notification file, an instruction to download a new status notification file from the cloud server C, and an instruction to end the inquiry to the cloud server C. ..

Further, the storage means 16 is provided with a program for controlling each operation of the communication means 14, the voice processing means 11, the storage means 16, and the control means 15, and various setting data required when executing the program. In this example, the following data is stored.
1) A program for controlling outgoing / incoming calls to / from an external telephone in the communication means 2) Phone number of the called destination telephone to be called 3) Control communication with the management server computer Program 4) Management server Phone number assigned to the computer 5) Program for controlling data upload / download to / from the cloud server 6) Cloud server IP address 7) Operation of voice processing means Program to control 8) Setting data related to DA / AD conversion, frequency adjustment, codec processing, signal amplification, etc. of audio signals 9) Program to control data input / output to storage means 10) Update of data stored in storage means A program for executing such a storage means 16 can be realized by, for example, a hard disk (HDD), a solid state drive (SSD), a USB memory, an SD card, etc., and among these, the usage environment and the required capacity Depending on the situation, the most suitable one can be selected and used.

The control means 15 controls the operations of the communication means 14, the voice processing means 11, the storage means 16, and the control means 15 itself based on data such as a program stored in the storage unit, and executes a predetermined operation. It has a function to make it. Such a control means 15 can be realized by, for example, a small computer including a calculation unit such as a CPU or MPU and a main storage unit such as a RAM.

(Manager's room, etc.)
In the manager's room 40, the machine room, or the like provided in or near the building where the elevator is installed, a master unit intercom 41 that is normally connected to the elevator intercom (slave unit) 32 so as to be able to talk is installed. The master unit intercom 41 is configured to be able to make a call by operating the intercom (slave unit) 32 in the elevator and the activation means 31 (emergency button). Therefore, the direct talk device 10 may be connected to the master unit intercom 41 so that the master unit intercom 41, the intercom (slave unit) 32, and the external telephone 21 can talk to each other. Further, when a plurality of elevator cars 30 are provided side by side, the master unit intercom 41 has a function of selecting the intercom (slave unit) 32 to be called. Therefore, the direct talk device 10 may be connected to the master unit intercom 41, and only the intercom (slave unit) 32 selected by the master unit intercom 41 may be connected to the external telephone 21 so as to be able to talk.

The operating power of the intercom 32 and the direct talk device 10 is normally supplied from a commercial power source, but it is necessary to enable the intercom 32 to make a call even during a power failure. Therefore, the manager's room 40 and the like are provided with an independent power supply 42 for supplying electric power to the intercom 32 and the direct talk device 10 in an emergency such as a power failure. As the independent power supply 42, a storage battery, UPS (uninterruptible power supply), or the like is used.

(Drive system control system)
In the building where the elevator is installed, a drive including an elevator drive device 51 for raising and lowering the car 30 and opening and closing the door, and a drive system control device 52 for controlling the elevator drive device 51. A system control system 50 is provided. The drive system control system 50 is connected to the drive system management center 54 via a drive system communication line 53, and is configured to remotely monitor the operation of the elevator and remotely control it as needed. The call system S of this example is provided independently of the drive system control system 50, and is configured so that their operations do not interfere with each other. Therefore, even while the elevator is being remotely controlled by the drive system control system 50, a call between the intercom 32 and the external telephone 21 and data communication between the direct talk device 10 and the management server computer 24 are executed. It is possible to do. However, it is preferable to construct a system between the drive system management center 54 and the call management center 20 so that the information acquired by each can be shared with each other.

The operating status of the call system S configured as described above will be described below.

[When sending a start signal]
2 to 8 are block diagrams showing a call system according to an embodiment of the present invention, and FIG. 2 is a block diagram in which a start signal is output, a status notification file is uploaded from a direct talk device to a cloud server, and management is performed. FIG. 3 shows a situation in which a telephone is issued to the server computer for management, and FIG. 3 shows a situation in which the management server computer is downloading a status notification file from a cloud server. The management server computer shows a situation in which the telephone communication with the direct talk device is disconnected, FIG. 5 shows a situation in which the direct talk device issues a call to the telephone, and FIG. 6 shows the interphone and the telephone. FIG. 7 shows the situation where the call is started, FIG. 7 shows the situation where the input is made from the push button of the car, and FIG. 8 shows the situation where the call between the interphone and the telephone is terminated. It is a thing. FIG. 9 is a time chart showing the operating status of the direct talk device, the management server computer, and the cloud server in the communication system according to the embodiment of the present invention.

2 to 9 show an operation in the call system S when a call request is made by outputting a start signal from the start means 31. Here, the activation means 31 refers to, for example, an emergency button provided in the car 30 together with the intercom 32.

The operating status from the request for a call to the end of the call is as follows. In the following description, the time chart of FIG. 9 shall always be referred to.

<P1: Start signal output> (Fig. 2)
When the activation means 31 such as the emergency button is operated, the intercom 32 is energized and the activation signal is output from the activation means 31 to the control means 15 of the direct talk device 10. It is assumed that the intercom 32 is used when an occupant is trapped in the elevator car 30 due to a failure or a power failure. When a power failure occurs, operating power is supplied from an independent power supply 42 such as UPS to the intercom 32 and the direct talk device 10 (see FIG. 1).

<P2: Upload status notification file> (Fig. 2)
Upon receiving the activation signal, the direct talk device 10 reads the status notification file F1 corresponding to the call request from the storage means 16 by the control means 15, controls the communication means 14, and controls the second communication line N2. The status notification file F1 is uploaded to the cloud server C via. In the status notification file F1, the device number for identifying the car 30, the status type number (status = 0) indicating the telephone call described later, and the instruction to request the management server computer 24 to check the status. Contains information. Here, the status confirmation request is an instruction to cause the management server computer 24 to periodically (for example, every second) inquire the cloud server C about the existence of a new status notification file, and a cloud of the new status notification file. An instruction to perform a process of downloading from the server C is included.

<P3: Notification from the direct talk device to the management server computer> (Fig. 2)
The direct talk device 10 issues a telephone call to the telephone number assigned to the management server computer 24 via the first communication line N1 at the same time as or immediately after the upload of the status notification file F1.

<P4: Download status notification file> (Fig. 3)
When the management server computer 24 receives a call from the direct talk device 10, the management server computer 24 downloads the status notification file F1 from the cloud server C via the second communication line N2. Then, based on the device number and the state type number included in the status notification file F1, the monitor 25 displays the information on the communication status and the information on the elevator for which the call is requested. Here, the information regarding the communication status is to notify that a call request has occurred from the intercom 32 of the car 30 based on the status type number (status = 0) indicating the telephone call. At this time, the occurrence time information of the call request may be displayed together. The information about the elevator includes notes such as the location of the building where the car with the emergency button is pressed, the name of the building, and the access method to the building. Such information may be obtained by preparing a database (not shown) related to the elevator and having the management server computer 24 extract the elevator information corresponding to the acquired device number from the database. If the management server computer 24 can acquire information from the elevator drive system control system, the monitor 25 displays the stop position of the car 30 for which a call request has been made, the operating status of the elevator, and the like. You may.

Further, the management server computer 24 periodically (for example, every second) inquires the management server computer 24 about the existence of a new status notification file based on the instruction information included in the downloaded status notification file F1. , If there is a new status notification file, start the process of downloading it from the cloud server C.

<P5 to P7: Telephone disconnection between the direct talk device and the management server computer> (Fig. 4)
Upon receiving a report from the direct talk device 10, the management server computer 24 disconnects the telephone communication with the direct talk device 10 immediately after that or at the same time as the download of the status notification file F1 starts (P5). Based on the disconnection of the telephone communication, the direct talk device 10 uploads the status notification file F2 including the status type number (status = 3) indicating the telephone disconnection to the cloud server C (P6). The management server computer 24 downloads the newly uploaded status notification file F2 (P7), and updates the communication status information displayed on the monitor 25 based on the contents.

<P8 to P10: Notification from the direct talk device to the telephone> (Fig. 5)
When the telephone communication with the management server computer 24 is disconnected, the direct talk device 10 issues a report to the telephone 21 of the call management center 21 by using the telephone directory data stored in the storage means 16 (P8). ). The direct talk device 10 uploads the status notification file F3 including the status type number (status = 0) representing the telephone alert to the cloud server C based on the telephone alert (P9). The management server computer 24 downloads the newly uploaded status notification file F3 (P10), and updates the communication status information displayed on the monitor 25 based on the contents.

<P11 to P13: Start of call between intercom and telephone> (Fig. 6)
When a response is started on the telephone 21 side after the telephone is issued from the direct talk device 10 to the telephone 21, a line connection is established between the telephone 21 and the communication means 14, and the first communication line N1 and the voice processing means 11 The intercom 32 and the telephone 21 can talk to each other via the above (P11). This makes it possible to have a conversation between the occupants of the car and the operator of the call management center. At this time, the operator can see the display on the monitor 25 when starting the call and know in advance when and where the call was made, so that the operator can quickly respond to and deal with the occupants of the car. It can be carried out. Further, when a plurality of telephones are installed in the call management center 20, the operator can smoothly operate by displaying on the monitor which telephone is answering.

Based on the start of answering with the telephone 21, the direct talk device 10 uploads the status notification file F4 including the state type number (state = 1) representing the telephone answer to the cloud server C (P12). The management server computer 24 downloads the newly uploaded status notification file F4 (P13), and updates the display content of the monitor 25 based on the content.

<P14 to P17: Respondent name input using touch-tone telephone> (Fig. 7)
During a call between the intercom 32 and the telephone 21, information about the respondent can be output, for example, by inputting from a push button 35 such as a numeric keypad provided in the car 30. For example, at the time of maintenance of the car 30, the worker in charge can identify the worker on the call management center 20 side by inputting the identification number or the like from the push button 35 (P14, P15), and the work record can be recorded. It is available as information. Based on the output from the push button 35, the direct talk device 10 uploads the status notification file F5 including the status type number (status = 2) representing the responder name input to the cloud server C (P16). The management server computer 24 downloads the newly uploaded status notification file F5 (P17), and updates the display content of the monitor 25 based on the content.

<P18 to P20: Telephone disconnection between the intercom and the telephone> (Fig. 8)
As a result of the call between the occupant of the car 30 and the operator of the call management center 20, when the correspondence is completed, the telephone is disconnected (P18). Based on the disconnection of the telephone communication, the direct talk device 10 uploads the status notification file F6 including the status type number (status = 3) indicating the telephone disconnection to the cloud server C (P19). The status notification file F6 output when the telephone between the intercom and the telephone is disconnected includes instruction information for the management server computer 24 to end the inquiry to the cloud server C. The management server computer 24 downloads the newly uploaded status notification file F6 (P20), updates the communication status information displayed on the monitor 25 based on the contents, and stops checking the existence of the status notification file. To do.

[When receiving a call]
10 to 14 are block diagrams showing a communication system according to an embodiment of the present invention, and FIG. 10 shows a situation in which a call is issued from an external telephone to a direct talking device, and FIG. 11 is shown in FIG. Shows the situation in which the status notification file is uploaded from the direct talk device to the cloud server and the telephone is issued to the management server computer. FIG. 12 shows the situation in which the management server computer is the direct talk device. FIG. 13 shows a situation in which a call between the interphone and the telephone is started, and FIG. 14 shows a situation in which the call between the interphone and the telephone is terminated. It is a thing. FIG. 15 is a time chart showing the operating status of the direct-talking device, the management server computer, and the cloud server when a call is issued from an external telephone to the direct-talking device in the communication system according to the embodiment of the present invention. is there.

10 to 15 show an operation in the call system S when a call request is made by receiving a call from an external telephone 21.

The operating status from the request for a call to the end of the call is as follows. In the following description, the time chart of FIG. 15 is always referred to.

<Q1: Incoming call from an external telephone 21> (Fig. 10)
If necessary, an external telephone 21 such as the call management center 20 may call the direct talk device 10. In this case, when the alarm signal output from the telephone 21 arrives, a call request is made to the direct talk device 10.

<Q2 to Q4: Notification from the direct talk device to the management server computer> (Fig. 11)
The direct-talking device 10 that has received the alarm from the external telephone 21 temporarily puts the line connection with the telephone 21 into a hold state. Then, when the control means 15 receives a report from the external telephone 21, the corresponding status notification file f1 is read from the storage means 16, the communication means 14 is controlled, and the cloud is passed through the second communication line N2. Upload the status notification file f1 to the server C (Q2). The status notification file f1 includes a device number for identifying the car 30, a status type number (status = 4) indicating an incoming call, and instruction information for requesting the management server computer 24 to check the status. Is done. Here, the status confirmation request is an instruction to the management server computer 24 to periodically inquire the cloud server C about the existence of a new status notification file, and a process to download a new status notification file from the cloud server C. Includes instructions to do.

Further, the direct talk device 10 issues a telephone call to the telephone number assigned to the management server computer 24 via the first communication line N1 at the same time as or immediately after the upload of the status notification file f1 (Q3). .. When the management server computer 24 receives a call from the direct talk device 10, the management server computer 24 downloads the status notification file f1 from the cloud server C via the second communication line N2 (Q4). Then, based on the device number and the state type number included in the status notification file f1, the monitor 25 displays the information on the communication status and the information on the elevator for which the call is requested. Here, the information regarding the communication status is to notify that a call request has occurred by issuing a call from an external telephone 21 based on the status type number (state = 4) indicating an incoming call. At this time, the occurrence time information of the call request may be displayed together. Information about the elevator includes notes such as the location of the building where the car is installed, the name of the building, and the access method to the building. For this information, a database (not shown) relating to the elevator may be prepared, and the management server computer 24 may obtain the elevator information corresponding to the acquired device number by extracting it from the database. If the management server computer 24 can acquire information from the elevator drive system control system, the monitor 25 displays the stop position of the car 30 for which a call request has been made, the operating status of the elevator, and the like. You may.

Based on the instruction information contained in the downloaded status notification file f1, the management server computer 24 periodically (for example, every second) inquires of the cloud server C about the existence of a new status notification file. If there is a new status notification file, the process of downloading it from the cloud server C is started.

<Q5 to Q7: Telephone disconnection between the direct talk device and the management server computer> (Fig. 12)
Upon receiving a report from the direct talk device 10, the management server computer 24 disconnects the telephone communication with the direct talk device 10 immediately after that or at the same time as the download of the status notification file f1 starts (Q5). Based on the disconnection of the telephone communication, the direct talk device 10 uploads the status notification file f2 including the status type number (status = 3) indicating the telephone disconnection to the cloud server C (Q6). The management server computer 24 downloads the newly uploaded status notification file f2 (Q7), and updates the communication status information displayed on the monitor 25 based on the contents.

<Q8 to Q10: Start of call between intercom and telephone> (Fig. 13)
When the telephone communication with the management server computer 24 is disconnected, the direct talk device 10 releases the hold state with the telephone 21 and establishes a line connection between the telephone 21 and the communication means 14 (Q8). .. As a result, the intercom 32 and the telephone 21 are in a state where they can talk to each other via the first communication line N1 and the voice processing means 11. Therefore, between the occupant of the car and the operator of the call management center. It will be possible to have a conversation at. At this time, since the operator can check the information of the call destination in advance by looking at the display on the monitor 25 when starting the call, it is possible to prevent a mistake in making a call. Further, when a plurality of telephones are installed in the call management center 20, the operator can smoothly operate by displaying on the monitor which telephone is answering. Based on the start of answering with the telephone 21, the direct talk device 10 uploads the status notification file f3 including the state type number (state = 1) representing the telephone answer to the cloud server C (Q9). The management server computer 24 downloads the newly uploaded status notification file f3 (Q10), and updates the display content of the monitor 25 based on the content.

<Q11 to Q13: Telephone disconnection between the intercom and the telephone> (Fig. 14)
As a result of a call between the occupant of the car 30 and the operator of the call management center 20, the telephone is disconnected when the correspondence is completed (Q11). The direct talk device 10 uploads the status notification file f4 including the status type number (status = 3) indicating the telephone disconnection to the cloud server C based on the disconnection of the telephone communication (Q12). The status notification file f4 output when the telephone between the intercom and the telephone is disconnected includes instruction information for the management server computer 24 to terminate the inquiry to the cloud server C. The management server computer 24 downloads the newly uploaded status notification file f4 (Q13), updates the communication status displayed on the monitor 25 based on the content, and stops checking for the existence of the status notification file. ..

According to the call system S configured as described above, before starting a call between the intercom and the telephone, information on the elevator and information on the communication status of the direct talk device are displayed on a monitor such as a call management center. Can be done. As a result, the operator can start the call after confirming the situation in advance, so that it is possible to promptly give an appropriate response to the occupants of the car.

Since the cloud server is used as the upload / download destination of the status notification file, uploading data from the direct-speaking device does not affect the operation of the management server computer. Further, even when the management server computer manages a plurality of direct talk devices, the management server can acquire information on the operating status of the plurality of direct talk devices simply by downloading the status notification file from the cloud server. It is possible to suppress the increase in the load on the computer.

Further, according to the communication system of this example, the telephone communication between the intercom and the telephone and the data communication between the direct talk device and the management server computer and the cloud server are performed in different communication modes independently of each other. These can be done in parallel.

By installing the direct talk device independently of the drive system control system of the elevator, the operation of the direct talk device does not interfere with the drive system control system of the elevator. As a result, even when the operation of the elevator is remotely controlled, it is possible to make a call using an intercom and perform data communication between the direct talk device and the management server computer and the cloud server.

[Other embodiments]
In the above embodiment, the activation means is configured to output an activation signal by operating an operation button, but may be configured to automatically output an activation signal when a power failure occurs, or The volume of the voice input to the microphone may be constantly monitored, and when the volume exceeds a certain value, a start signal may be automatically output to enable a call with an external telephone.

Further, the external telephone capable of making a call through the intercom may be a mobile phone capable of making a call through an LTE line, in addition to the telephone installed in the call management center.

The direct talk device may be additionally installed later in the manager's room, machine room, or the like of a building having an existing elevator, or may be designed to be incorporated from the beginning of construction.

The first communication line may be used for telephone communication and data communication according to a communication standard other than the LTE standard. In this case, the direct talk device and the first communication line may be connected by a wired connection using a modular cable or the like.

The second communication line may be connected to the Internet according to a different standard such as Wi-fi without using the first communication line. Further, the direct talk device and the second communication line may be connected by a wired connection using a LAN cable or the like.

The voice conversion unit and the voice signal adjustment unit of the voice processing means may be mounted on one board, or may be configured by separate devices.

A dedicated database server may be used as the server computer for uploading / downloading data to / from the direct-talking device, in addition to the cloud server.

S ... Call system C ... Cloud server 10 ... Direct talk device 11 ... Voice processing means 12 ... Voice signal conversion unit 13 ... Signal adjustment unit 14 ... Communication means 15 ... Control means 16 ... Storage means 20 ... Call management center 21 ... Telephone 22 ... server device 23 ... communication device 24 ... management server computer 25 ... monitor 30 ... car 31 ... activation means 32 ... intercom (slave unit)
33 ... Speaker 34 ... Microphone 35 ... Push button 40 ... Manager's room 41 ... Master unit intercom 42 ... Independent power supply 50 ... Drive system control system 51 ... Elevator drive device 52 ... Drive system control device 53 ... Drive system communication line 54 ... Drive System management center N1 ... 1st communication line N2 ... 2nd communication line In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (3)

The intercom installed in the elevator car and
The first communication line capable of communication by voice signal and
A second communication line that can connect to the Internet,
A telephone connected to the first communication line and
The management server computer connected to the first communication line and the second communication line,
A display device that displays information on the management server computer,
A cloud server built on the Internet and
A communication system including a first communication line and a direct talk device connected to the second communication line while being electrically connected to the intercom.
The direct-speaking device has a function of connecting the intercom and the telephone so as to be able to talk via the first communication line, and a status notification file which is data including information about the elevator on the second communication line. It has a function to upload to the cloud server via
The management server computer has a function of downloading the status notification file from the cloud server via the second communication line and a function of displaying information about the elevator on the display device based on the status notification file. Prepare,
Upon receiving a request to start a call between the intercom and the telephone, the direct talk device uploads the status notification file to the cloud server and starts downloading the status notification file to the management server computer. A telephone system that transmits an instruction and is set to start a call between the intercom and the telephone after the instruction is transmitted. The communication system according to claim 1, wherein the first communication line is a telephone line, and the instruction from the direct talk device to the management server computer is a telephone call. When the management server computer receives an incoming call from the direct talk device, the telephone communication with the direct talk device is disconnected, and the direct talk device disconnects the telephone communication with the management server computer. The calling system according to claim 2, wherein the telephone is set to issue a report.