Elevator system, and control method of elevator system

Abstract

To provide an elevator system which enables a passenger to appropriately select a method for contacting a control center in the event of elevator abnormality, and to provide a control method of the elevator system.SOLUTION: A control system includes a two-dimensional code generating unit for generating a unique two-dimensional code associated with a text dialog dedicated site where a text dialog can be established with a portable terminal. An elevator device includes an in-car display unit which displays a screen for selecting whether to call a control center by voice call using a call device in the elevator car or to establish a text call using a portable terminal carried by a passenger, and which displays a two-dimensional code generated by the two-dimensional code generating unit, in the case that a text call is selected.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an elevator system and a method for controlling an elevator system. [Background technology]

[0002] Conventionally, if an abnormality occurs while using an elevator, passengers can press an emergency call button installed in the elevator car to initiate a call with a controller at the control center. This allows passengers to inform the controller of the elevator malfunction or other occurrence.

[0003] Patent Document 1 discloses an elevator external reporting system that is configured to allow passengers in the car to contact the outside world with a simple operation without using voice when they become trapped in the elevator. In Patent Document 1, passengers trapped in the car read a read code displayed in the car with a communication terminal used by the passenger, enabling the exchange of messages by text between the communication terminal and a remote monitoring center. This allows passengers to send information about the elevator malfunction to the remote monitoring center by text. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-182601 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, for passengers who do not have a communication terminal or passengers who are not familiar with using communication terminals, it is difficult to read the displayed reading code and send the malfunction status by text when the elevator malfunctions. On the other hand, some passengers may have difficulty explaining the malfunction status by voice call due to hearing impairment, etc. Therefore, it is preferable that when an elevator malfunction occurs, the passenger can choose the contact method to contact the control center, whether by voice call or by exchanging messages by text.

[0006] Therefore, the present invention provides an elevator system and a control method for an elevator system that allow passengers to appropriately select a method for contacting a control center when an abnormality occurs in the elevator. [Means for solving the problem]

[0007] In order to solve the above problems and achieve the object of the present invention, the elevator system of the present invention includes an elevator device having a car, and a control system that manages the elevator device based on information from the elevator device, the control system includes a two-dimensional code generation unit that generates a unique two-dimensional code linked to a text dialogue dedicated website that enables text communication with a mobile terminal, and the elevator device includes an in-car display unit that displays a selection screen in the event of an abnormality to allow a passenger to select whether to communicate with the control center by voice communication using the communication device in the car or by text communication using a mobile terminal carried by the passenger, and displays the two-dimensional code generated by the two-dimensional code generation unit when text communication is selected.

[0008] The control method of an elevator system of the present invention includes an elevator apparatus having a car and a control system that manages the elevator apparatus based on information from the elevator apparatus, and includes a step of displaying, in the event of an abnormality, a selection screen on a display unit inside the car of the elevator apparatus, which allows the passenger to select whether to make a call with the control center by voice communication using a communication device in the car or by text communication using a mobile terminal carried by the passenger. When text communication is selected on the selection screen, the control system further includes a step of generating, in a two-dimensional code generating unit in the control system, a unique two-dimensional code linked to a text dialogue dedicated website that allows text communication with the mobile terminal, and a step of displaying, on the display unit inside the car, the two-dimensional code generated by the two-dimensional code generating unit. Effect of the Invention

[0009] According to the present invention, when an elevator abnormality occurs, passengers can appropriately select a method of contacting the control center. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing an example of an elevator system 1 according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an enlarged view of an operation unit 140 according to an embodiment of the present invention. [Diagram 3] 3 is a flowchart showing a control method for the elevator system 1 according to one embodiment of the present invention. [Figure 4] An example of a display screen displayed on the car interior display unit 130 in step S1 is shown. [Diagram 5] 13 is an example of a display screen displayed on the car internal display unit at the timing of step S7. [Figure 6] 13 is an example of a display screen displayed on the car interior display unit 130 at the timing of step S4. [Figure 7] 11 is a flowchart executed on the control system 40 side when the emergency call button 141 is pressed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an example of an elevator system and a control method for an elevator system according to an embodiment of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the following example. In each of the drawings described below, the same reference numerals are used to denote common parts.

[0012] 1. Elevator System Configuration 1 is a diagram showing an example of an elevator system 1 according to an embodiment of the present invention (hereinafter, referred to as the present embodiment). The elevator system 1 of the present embodiment is composed of an elevator device 10 installed in a building 100, an elevator monitoring device 30 provided in the building 100 in which an elevator 20 is installed, and a control system 40 installed in a control center 200 in a building other than the building 100.

[0013] [Elevator equipment] The elevator system 10 is composed of an elevator 20 consisting of a car 150 and a hoist (not shown) that raises and lowers the car 150, and an elevator control unit 160 that controls the elevator 20.

[0014] The elevator 20 has a car 150 provided in the hoistway, and also has a main rope with one end attached to the car 150 and a counterweight to which the other end of the main rope is attached and suspended in the hoistway (not shown). The elevator 20 also has a hoist around which the main rope is wound. The hoist is rotatably installed, for example, in a machine room provided at the top of the hoistway. The hoist is controlled and driven by an elevator control unit 160. As a result, the car 150 rises and falls relative to the counterweight.

[0015] The elevator control unit 160 is electrically connected to the elevator monitoring device 30, and controls each unit of the elevator device 10 based on signals from the elevator monitoring device 30. For example, the elevator control unit 160 controls and drives the hoisting machine to raise and lower the car 150. Furthermore, the elevator control unit 160 controls the opening and closing operation of a door unit (not shown) according to a predetermined timing. The elevator control unit 160 also controls the operation unit 140 and the in-car display unit 130 installed in the car 150. Furthermore, in this embodiment, the elevator control unit 160 controls the input and output of the operation unit 140 and the in-car display unit 130.

[0016] The operation unit 140 is attached in a position inside the car 150 where it can be operated by passengers. Fig. 2 is an enlarged view of the operation unit 140 of this embodiment. As shown in Fig. 2, the operation unit 140 includes destination floor buttons 142a, 142b for inputting a predetermined destination floor, open / close buttons 143, 144 for inputting an open / close operation for the car door, and an emergency call button 141.

[0017] The destination floor buttons 142a, 142b are push-type and / or sensor-type input units provided for a predetermined number of floors (two floors in this embodiment) according to the stopping floors of the elevator device 10. Passengers can register destination floors by operating the destination floor buttons 142a, 142b.

[0018] The open / close buttons 143 and 144 are input units that can operate the opening and closing operation of the door unit. By operating the open / close buttons 143 and 144, passengers can operate the opening and closing operation of the door unit when the elevator car 150 is stopped at a predetermined stop floor.

[0019] The emergency call button 141 is an input unit operated by the passenger 600 in an emergency such as when an abnormality occurs in the elevator 20. By operating the emergency call button 141, the passenger 600 can start input operations in an emergency. In this embodiment, the input operations of the passenger 600 in an emergency are characterized. The input operations in an emergency will be described in detail later.

[0020] The car interior display unit 150 is, for example, a monitor configured with an LCD (Liquid Crystal Display) or the like, and during normal operation, displays the floor the car 150 is passing through and the next floor to stop at. In this embodiment, after pressing the emergency call button 141, a screen that the passenger 600 can input information on and a two-dimensional code transmitted from the control center 200 side, which will be described later, are displayed.

[0021] Although not shown, a communication device capable of voice communication with the control center 200 is provided inside the car 150. By using the communication device, voice communication is possible between the passengers 600 and the controllers 500 of the control center 200 in an emergency as necessary.

[0022] [Elevator monitoring device] The elevator monitoring device 30 includes a monitoring control unit 120 and a communication device 110.

[0023] The monitoring control unit 120 is electrically connected to an elevator control unit 160 of the elevator device 10, and transmits control signals for controlling each part of the elevator device 10 to the elevator control unit 160 side, and receives signals transmitted from the elevator control unit 160 side. The monitoring control unit 120 also transmits and receives signals to and from a control system 40 provided in the control center 200 via the communication device 110. The monitoring control unit 120 controls each part constituting the elevator monitoring device 30 based on signals transmitted from the control system 40 and the elevator control unit 160.

[0024] The communication device 110 is connected to the control system 40 via a general public line network 400 such as a network. In this embodiment, when the emergency call button 141 is pressed, various information of the elevator device 10 is transmitted to the control center 200 via the communication device 110. When the emergency call button 141 is pressed and it is determined that a call with the control center 200 is necessary, a call is made between a passenger in the car 150 and a controller 500 of the control center 200 from a communication device (not shown) in the car 150 via the communication device 110.

[0025] [Elevator control system] The control system 40 installed in the control center 200 includes a communication data transmission / reception unit 210, a two-dimensional code generation unit 220, and a text dialogue dedicated site 230. The communication data transmission / reception unit 210 is connected to the communication device 110 of the elevator monitoring device 30 via a general public line network 400 such as a network.

[0026] The two-dimensional code generating unit 220 generates a two-dimensional code (in this embodiment, a QR code (registered trademark)) unique to the transmitted signal based on the signal from the elevator monitoring device 30 received by the communication data transmitting and receiving unit 210. Information on the two-dimensional code generated by the two-dimensional code generating unit 220 is transmitted to the elevator monitoring device 30 side via the communication data transmitting and receiving unit.

[0027] The text dialogue dedicated site 230 is a site that can be accessed when the two-dimensional code generated by the two-dimensional code generating unit 220 is read by a mobile terminal such as a smartphone. When the passenger 600 connects to the text dialogue dedicated site 230 using a mobile terminal, the passenger 600 can input information such as the fault state of the elevator 20 from the mobile terminal 300 side in the text dialogue dedicated site 230, and the response content from the control center 200 side is presented on the mobile terminal side of the passenger 600. A method of connecting to the text dialogue dedicated site 230 will be described in detail later.

[0028] The functional configurations of the elevator system 1 of this embodiment have been described above. These functional configurations are realized by information processing devices (hardware) such as a microcontroller constituting each device or system. The information processing device includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and a non-volatile storage, each of which is connected to a bus.

[0029] The CPU reads out the program code of the software that realizes each function according to the present embodiment from the ROM, and expands it in the RAM and executes it in each system or each device that constitutes each system. Note that the information processing device may include a processing device such as an MPU (Micro-Processing Unit) instead of the CPU. Variables, parameters, etc. that are generated during the calculation process are temporarily written to the RAM.

[0030] Examples of non-volatile storage that can be used include a hard disk drive (HDD), a solid state drive (SSD), a flexible disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, and a non-volatile memory card. In addition to an operating system (OS), programs and data required for the CPU to operate are stored in this non-volatile storage. The non-volatile storage corresponds to a memory unit (not shown) configured in the elevator system 1. The programs may be stored in a ROM.

[0031] The program is stored in the form of a program code that can be read by the CPU, and the CPU sequentially executes operations according to the program code. In other words, a ROM or non-volatile storage is used as an example of a non-transitory recording medium that can be read by the CPU and stores a program to be executed by the CPU.

[0032] 2. Elevator system control method Next, a control method for the elevator system 1 in this embodiment will be described. Fig. 3 is a flowchart showing the control method for the elevator system 1 in this embodiment. The flowchart in Fig. 3 is a flowchart executed when a passenger 600 in the car 150 presses the emergency call button 141 when some abnormality occurs during operation of the elevator 20, and is a flowchart executed by the monitoring and control unit 120.

[0033] The flowchart in Fig. 3 starts when a passenger 600 in the car 13 presses the emergency call button 141 provided on the operation unit 140. That is, the flowchart in Fig. 3 starts when an emergency call signal generated by pressing the emergency call button 141 is transmitted to the monitoring control unit 120 via the elevator control unit 160.

[0034] When the emergency call button 141 is pressed, the monitoring control unit 120 displays a call mode selection screen on the car internal display unit 130 via the elevator control unit 160 (step S1). FIG. 4 shows an example of a display screen displayed on the car internal display unit 130 in step S1. As shown in FIG. 4, the call mode options include a voice call mode in which a call is made to a controller 500 at the control center 200 using a communication device in the car 150 (not shown), and a text call mode that can be executed by reading a two-dimensional code (QR code (registered trademark) in this embodiment) with the mobile terminal 300 of the passenger 600 and connecting to a site dedicated to text dialogue. The car internal display unit 130 displays a message M1 such as "Connecting to the control center. Please select your desired call method" and also displays an operation method for inputting the selected mode.

[0035] 4 shows an example in which the operation method for each is displayed such that when the voice call mode is selected, the destination floor button 142a for the first floor on the operation unit 140 is pressed, and when the text call mode is selected, the destination floor button 142b for the second floor on the operation unit is pressed. The passenger 600 selects the call mode by making input according to the display screen displayed on the display unit 130 inside the car.

[0036] The monitoring control unit 120 judges whether or not a call mode has been input from the operation unit 140 in the car 150 (step S2). In step S2, if it is judged that the destination floor button 142b for the second floor has been pressed, for example, the process proceeds to step S8. FIG. 5 is an example of a display screen displayed on the car interior display unit 130 at the timing of step S7. In step S8, as shown in FIG. 5, the monitoring control unit 120 displays a text message M2 saying "Starting a voice call with the control center" on the car interior display unit 130, and connects a communication device (not shown) provided in the car 150 to the control center 200 side. This allows the passenger 600 to make a voice call with the controller 500 of the control center 200 via the communication device (not shown). Then, the process proceeds to step S9.

[0037] On the other hand, if it is determined in step S2 that the first floor destination floor button 142a has been pressed, the process proceeds to step S3. In step S3, the monitoring control unit 120 receives information on the two-dimensional code generated by the two-dimensional code generation unit 220 of the control system 40 by transmitting and receiving signals to and from the control system 40 via the communication device 110.

[0038] Next, under the control of the monitoring and control unit 120, the elevator control unit 160 causes the car internal display unit 130 to display the two-dimensional code (QR code (registered trademark) in this embodiment) received from the control system 40 (step S4). Fig. 6 shows an example of a display screen displayed on the car internal display unit 130 at the timing of step S4. As shown in Fig. 6, in step S4, the two-dimensional code C is displayed, and also a text message M3, for example, "Please read the QR code below with your mobile device." is displayed.

[0039] 6, the passenger 600 reads the two-dimensional code C using the camera function of his / her mobile terminal 300. As a result, the mobile terminal 300 of the passenger 600 is connected to the text dialogue dedicated site 230 linked to the two-dimensional code C via a mobile phone line. The passenger 600 can input information such as the malfunction status of the elevator 20 from the connected text dialogue dedicated site 230. The passenger 600 can also check the response and instructions from the controller 500 in text form on the text dialogue dedicated site 230.

[0040] Next, the monitoring and control unit 120 confirms, based on the information transmitted from the control center 200, that a text dialogue session has been established between the passenger 600 and the controller 500 at the text dialogue dedicated site 230 (step S5).

[0041] Next, the monitor control unit 120 determines whether or not the emergency call button 141 has been pressed again based on the information from the elevator control unit 160 (step S6).

[0042] If the result of the determination in step S6 is "YES", that is, if it is determined that the emergency call button 141 has been pressed again, the process returns to step S1. For example, it is assumed that a passenger 600 who initially pressed the emergency call button 141 may press the emergency call button 141 again while another passenger 600 is making a text call on the text dialogue dedicated site 230. In such a case, in this embodiment, an emergency call from the emergency call button 141 by the other passenger 600 can be made valid.

[0043] After that, when the process proceeds to step S3 after the determination in step S2 is performed again, information of a two-dimensional code different from the first two-dimensional code is transmitted in step S4. The two-dimensional code transmitted the second time is a unique code linked to a text dialogue dedicated site 230 different from the two-dimensional code transmitted the first time. As a result, when another passenger presses the emergency call button 141 again in step S6 and the passenger 600 selects text communication, the passenger 600 can read the two-dimensional code different from the first one with his / her mobile terminal 300 to connect to a text dialogue dedicated site 230 different from the first one. As a result, the other passenger 600 can establish a new text dialogue session with the controller 500 via the text dialogue dedicated site 230.

[0044] Thereafter, the monitoring and control unit 120 judges whether or not the passenger 600 or the controller 500 has performed an end call operation based on the information from the control center 200 (step S7). If the answer is "NO" in step S7, that is, if it is judged that the end call operation has not been performed, the process returns to step S6.

[0045] On the other hand, if the answer is "YES" in step S7, that is, if it is determined that the call termination operation has been performed, the process proceeds to step S9. If text calls have been performed by multiple passengers 600 through multiple text dialogue dedicated sites 230, it is determined in step S7 whether the call termination operation has been performed in all of the text calls.

[0046] In step S9, the monitoring control unit 120 returns the car interior display unit 130 to the normal mode via the elevator control unit 160. This ends the flowchart in FIG.

[0047] Next, a description will be given of a program executed on the control system 40 side when the emergency call button 141 is pressed. Fig. 7 is a flowchart showing a program executed on the control system 40 side when the emergency call button 141 is pressed.

[0048] First, the communication data transmitting / receiving unit 210 judges whether or not an emergency call signal has been received based on a signal transmitted from the monitoring control unit 120 (step S11). If the judgment in step S11 is "NO", that is, if it is judged that an emergency call signal has not been received, the process returns to step S11.

[0049] On the other hand, if the result of the determination in step S11 is "YES", that is, if it is determined that an emergency call signal has been received, the process proceeds to step S12. The emergency call signal transmitted to the control system 40 includes various elevator information such as the building information (name) of the elevator device 10 where the emergency call was made, the elevator number, the identification code, the building code, the customer number, and the like.

[0050] In step S12, the communication data transmitting / receiving unit 210 judges whether the communication mode selected by the passenger 600 is the voice communication mode or the text communication mode based on the information transmitted from the elevator monitoring device 30. That is, the judgment in step S11 is made based on the information of the communication mode selected in step S2 in Fig. 3.

[0051] If it is determined in step S12 that the call mode is the voice call mode, the process proceeds to step S18. In step S18, the control system 40 connects a communication device (not shown) to the communication device provided in the elevator 20 to which the emergency call was made based on the transmitted elevator information, and starts a voice call with the communication device of the elevator 20 to which the emergency call was made. After the voice call is ended, the process proceeds to step S19. Step S19 will be described later.

[0052] On the other hand, if it is determined in step S12 that the call mode is the text call mode, the process proceeds to step S13. In step S13, the two-dimensional code generation unit 220 generates a unique (dedicated) two-dimensional code for the received emergency call signal. The two-dimensional code generated here is a two-dimensional code linked to the text dialogue dedicated site 230. This two-dimensional code also includes master information such as the building information (name) of the elevator 20 where the emergency call is made, the elevator number, the identification code, the building code, and the customer number.

[0053] Then, the communication data transmitting / receiving unit 210 transmits the two-dimensional code generated by the two-dimensional code generating unit 220 to the elevator monitoring device 30 side via the public line network 400 (step S14).

[0054] Next, the communication data transmitting / receiving unit 210 judges whether or not there has been a connection from the mobile terminal 300 to the text dialogue dedicated site 230 (step S15). If the judgment in step S15 is "NO", that is, if it is judged that there has been no connection from the mobile terminal to the text dialogue dedicated site 230, the judgment in step S14 is repeated.

[0055] On the other hand, if the answer is "YES" in step S15, that is, if it is determined that a connection has been made to the text dialogue dedicated site 230 from the mobile terminal 300, the process proceeds to step S16.

[0056] In step S16, the communication data transmitting / receiving unit 210 judges whether or not an emergency call signal has been received again. In step S16, if the judgment is "YES", that is, if it is judged that an emergency call signal has been received again, the process returns to step S11. In the case where the process returns to step S11 and the process proceeds to step S13 again, the two-dimensional code generated for the second time in step S14 is a unique code linked to a text dialogue dedicated site 230 different from the text dialogue dedicated site 230 linked to the two-dimensional code generated the first time. In other words, here, a two-dimensional code linked to a text dialogue dedicated site 230 different from the two-dimensional code generated when the emergency call signal was first received is generated and transmitted to the elevator monitoring device side. Note that even if the flow returning to step S11 is executed three or more times, a unique two-dimensional code linked to a different text dialogue dedicated site 230 is generated each time in step S14.

[0057] On the other hand, if the result of step S16 is "NO", that is, if it is determined that an emergency call signal has not been received, the process proceeds to step S17. In step S17, it is determined whether or not an end call operation has been performed by the passenger 600 or the controller 500. In step S17, a control unit (not shown) detects the state of a text call by the text dialogue dedicated site 230 to determine whether or not an end call operation has been performed. Note that, if text calls have been performed by multiple text dialogue dedicated sites 230, it is determined whether or not all calls have been ended.

[0058] If the determination in step S17 is "NO", that is, if it is determined that the call end operation has not been performed, the process returns to step S16. On the other hand, if the determination in step S17 is "YES", that is, if it is determined that the call end operation has been performed, the process proceeds to step S19. In step S19, it is determined that all text conversations resulting from the reception of the emergency call signal have ended, and the text dialogue dedicated site 230 is closed.

[0059] In this embodiment, when an abnormality occurs in the elevator 20 and the passenger 600 presses the emergency call button 141, the passenger 600 can select whether to communicate with the controller 500 by text communication or voice communication. This allows smooth communication with the controller 500, even if a person with hearing impairment or who cannot speak presses the emergency call button 141, as a text communication can be performed with the control center 200.

[0060] In this embodiment, even when the passenger 600 who first pressed the emergency call button 141 is in the middle of a text call with the controller 500 on the text dialogue dedicated site 230 using his / her mobile terminal 300, another passenger 600 can press the emergency call button 141 again. Furthermore, the other passenger 600 can also read another displayed two-dimensional code with his / her mobile terminal 300 to connect to a text dialogue dedicated site 230 different from that of the first passenger 600 and start a text call with the controller 500. In this way, a plurality of passengers 600 can access different text dialogue dedicated sites 230 by reading their own unique two-dimensional codes. This enables communication by text call between a plurality of passengers 600 using the same elevator 20 and the control center 200. Furthermore, the security of each passenger 600 can be ensured by each passenger 600 accessing a different dedicated site.

[0061] Furthermore, when the text conversation ends, the connected text conversation dedicated site 230 is closed. This makes it possible to prevent personal information, etc. of the passenger 600 who was accessing the text conversation dedicated site 230 from being leaked to other passengers.

[0062] In this embodiment, as shown in Fig. 4, the selection between text call and voice call displayed on the car interior display unit 130 is performed using destination floor buttons 142a, 142b on the operation unit 140, but the present invention is not limited to this. For example, the selection operation may be performed using an open button 143 and a close button 144 on the operation unit 140. In addition, when the car interior display unit 130 is configured with a touch panel, the passenger 600 can input from the car interior display unit by displaying touch buttons on the car interior display unit 130.

[0063] Furthermore, in the present embodiment, a QR code (registered trademark) is used as the two-dimensional code, but this is not limiting, and other two-dimensional codes such as a barcode can also be used.

[0064] Furthermore, in the present embodiment, an example has been described in which the passenger 600 and the controller 500 make a text call on the text dialogue dedicated site 230, but an example may also be one in which an automatic response is performed by an automatic response device such as a chatbot on the text dialogue dedicated site 230. The specifications of the text dialogue dedicated site 230 accessed from the mobile terminal 300 of the passenger 600 can be changed in various ways.

[0065] The above-mentioned embodiment has been described in detail to clearly explain the present invention, and is not necessarily limited to having all of the configurations described. For example, it is possible to replace a part of the configuration of the embodiment with another configuration, and it is also possible to add another configuration to the configuration of the embodiment. Also, it is possible to add, delete, or replace a part of the configuration of the embodiment with another configuration. [Explanation of symbols]

[0066] 1... elevator system, 10... elevator equipment, 20... elevator, 30... elevator monitoring device, 40... control system, 100... building, 110... communication device, 120... monitoring control unit, 130... car interior display unit, 140... operation unit, 141... emergency call button, 142a, 142b... destination floor button, 143... open button, 144... close button, 150... car interior display unit, 160... elevator control unit, 200... control center, 210... communication data transmission / reception unit, 220... two-dimensional code generation unit, 230... text dialogue dedicated site, 300... mobile terminal, 400... public line network, 500... controller, 600... passenger

Claims

1. An elevator system including an elevator apparatus having a car and a control system that manages the elevator apparatus based on information from the elevator apparatus, The control system includes a two-dimensional code generating unit that generates a unique two-dimensional code linked to a text conversation dedicated website that enables text conversation between the control system and a mobile terminal held by a passenger in the elevator, the elevator device displays a selection screen for selecting whether to make a call with a control center in which the control system is installed by voice call using a communication device in the elevator car or by text call using a mobile terminal carried by the passenger when an abnormality occurs, and includes an in-car display unit for displaying the two-dimensional code generated by the two-dimensional code generation unit when the text call is selected. Elevator system.

2. The elevator apparatus has an emergency call button in the elevator car, The car interior display unit displays the selection screen when the emergency call button is pressed.

2. The elevator system of claim 1.

3. By reading the two-dimensional code displayed on the car interior display unit with the mobile terminal, the mobile terminal is connected to a text dialogue dedicated site linked to the two-dimensional code.

3. The elevator system of claim 2.

4. When the emergency call button is pressed during a period in which a text call is established between the mobile terminal and the text dialogue dedicated site, the car interior display unit displays the selection screen again, When a text call is selected on the selection screen that is displayed again, the two-dimensional code generation unit generates a unique two-dimensional code linked to a text conversation dedicated site different from the text conversation dedicated site with which the text call is currently established, The car interior display unit displays a unique two-dimensional code linked to the separate text dialogue dedicated site.

4. The elevator system of claim 3.

5. The two-dimensional code is a QR code.

2. The elevator system of claim 1.

6. A control method for an elevator system including an elevator apparatus having a car and a control system that manages the elevator apparatus based on information from the elevator apparatus, comprising: when an abnormality occurs, displaying on a display unit in the car of the elevator device a selection screen for selecting whether to make a call with a control center in which the control system is installed by voice communication using a communication device in the car or by text communication using a portable terminal carried by a passenger; generating, in a two-dimensional code generating unit in the air traffic control system when a text call is selected on the selection screen, a unique two-dimensional code linked to a text dialogue dedicated website that enables text calls with a mobile terminal; displaying the two-dimensional code generated by the two-dimensional code generation unit on the car interior display unit; A method for controlling an elevator system having the following features:

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