Elevator system

Abstract

In an elevator system in which both a robot server and a security management device cooperate with the same elevator, the difficulty of implementation by users such as manufacturers is reduced. 【Solution means】 The elevator system includes a robot server, a security management device, an elevator group management device, and a relay device. When the relay device receives a security release request from the robot server, it transmits the release request to the security management device so as to transfer the release request. When the security management device receives a security release request from the relay device, it transmits the release request to the elevator group management device via the relay device. When the elevator group management device receives a security release request from the relay device, it releases the security restriction and transmits a security release response to the relay device.

Description

[Technical field]

[0001] The present disclosure relates to elevator systems. [Background technology]

[0002] Conventionally, there is an elevator system in which both a robot server that controls a robot and a security management device that manages the security of the facility work together with the same elevator. For example, Patent Document 1 describes an elevator system that includes a mobile object control device that is a robot server, and a security management device that manages restrictions on call registration. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7359282 Summary of the Invention [Problem to be solved by the invention]

[0004] In the elevator system described in Patent Document 1, when a robot arrives at a hall and there is a restriction on the floor the robot can board, the robot server sends a request to the security management device to remove the restriction. In order to realize such a conventional elevator system, direct cooperation between the robot server and the security management device is necessary. For this reason, it is necessary for both the robot manufacturer and the security manufacturer to consider the communication specifications between the robot server and the security management device and to implement a cooperation function. The conventional elevator system described in Patent Document 1 has the problem that it is difficult to implement.

[0005] The present disclosure is for solving the above problems. The object of the present disclosure is to reduce the difficulty of implementation by users such as manufacturers in an elevator system in which both a robot server and a security management device cooperate with the same elevator.

Means for Solving the Problems

[0006] The elevator system according to the present disclosure includes a robot server that controls a robot, a security management device that can request release of security restrictions on a specific floor of an elevator, an elevator group management device that performs security restrictions and releases on a specific floor of the elevator, and a relay device that communicates with the robot server, the security management device, and the elevator group management device. The relay device is configured to transfer a security release request when it receives the request from the robot server. When the security management device receives a security release request from the relay device, it relays the request through the relay device and transmits it to the elevator group management device. The elevator group management device releases the security restriction and transmits a security release response to the relay device. The signal when received, transfers the release request The signal is configured to transfer. When the security management device receives a security release request from the relay device The signal when received, transfers the release request The signal, to the elevator group management device by relaying the relay device. When the elevator group management device receives a security release request from the relay device When receiving the signal, performs security release and transmits a security release response The signal to the relay device. The relay device includes a release request response recording unit that associates and records the content of the security release request signal transmitted from the robot server with the content of the security release response signal transmitted from the elevator group management device, and collates the content of the security release request signal transmitted from the robot server with the past recorded content recorded in the release request response recording unit. According to the collation result, it selects to transfer the security release request signal to the security management device for relaying or transfer the security release request signal to the elevator group management device without relaying through the security management device. It has a release request response collation unit.

Effects of the Invention

[0007] According to the present disclosure, in an elevator system in which both a robot server and a security management device cooperate with the same elevator, the difficulty of implementation by users such as manufacturers can be reduced.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0009] Hereinafter, embodiments will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. In the present disclosure, duplicate descriptions will be appropriately simplified or omitted. In the following description, for convenience, the positional relationship of each structure may be expressed based on the illustrated state. Note that the present disclosure is not limited to the embodiments shown below and their modifications. Any constituent elements described in the following embodiments and their modifications can be freely combined, modified, or omitted without departing from the gist of the present disclosure.

[0010] Embodiment 1. FIG. 1 is a diagram showing the overall configuration of the elevator system according to Embodiment 1. FIG. 2 is a block diagram showing the functional configuration of the elevator system according to Embodiment 1. The elevator system according to the present embodiment is composed of a robot server 2, a security management device 3, a relay device 5, and an elevator group management device 7.

[0011] The elevator system according to this embodiment is applied to a facility. The facility is, for example, an indoor facility, an outdoor facility, or a combined facility of these. The facility consists of, for example, one or more buildings. The facility may be, for example, a part of a building or the like. In the facility, a plurality of floors are provided.

[0012] In the facility to which the elevator system according to this embodiment is applied, the robot 1 operates. In the facility, a plurality of robots 1 may be operating. The robot 1 wirelessly communicates with the robot server 2 when it is inside the elevator car 11 or at the landing 16 provided in the facility. The robot server 2 controls the robot 1 by wireless communication. The robot server 2 manages, for example, the movement of the robot 1 and the services provided by the robot 1. Part or all of the robot server 2 may be arranged in the facility or outside the facility. Part or all of the functions of the robot server 2 may be implemented on a virtual machine of a cloud service or may be implemented using storage or processing resources on the cloud service.

[0013] In the facility, at least any specific floor is set as a security floor. The security floor is a floor where the entry of human users and the robot 1 as a device is managed. In the facility, a plurality of floors may be set as security floors. The elevator is used by users and the robot 1 to move between the plurality of floors in the facility. The elevator landings 16 are provided on each floor.

[0014] The elevator car 11 is connected to the hoisting machine 13, the deflecting sheave 14, and the counterweight 15 via a wire rope 12. The car 11 and the counterweight 15 are provided inside the hoistway 18 provided in the facility. The hoisting machine 13 and the deflecting sheave 14 are provided inside the machine room 19 provided in the facility.

[0015] The facility is provided with, for example, a plurality of cages 11. The travel of each cage 11 is controlled by the control device 9 for each elevator. The control device 9 for each elevator and the cage 11 are connected via a cable 10.

[0016] The control device 9 for each elevator is connected to the elevator group management device 7 via a transmission cable 8. The elevator group management device 7 controls the travel of the plurality of cages 11 by controlling each of the control devices 9 for each elevator. The elevator group management device 7 controls the operation of the entire elevator.

[0017] The security management device 3 is a device that manages security in the facility. The security management device 3 can request the release of security restrictions on specific floors of the elevator. The security management device 3 manages, for example, the restrictions on call registration when the cage 11 stops at the security floor. For example, the elevator group management device 7 restricts the acceptance of call registrations for the cage 11 to stop at the security floor by users such as those whose entry to the security floor is not permitted. The security management device 3 outputs a release request signal to release the restrictions by the elevator group management device 7. Also, the security management device 3 outputs a restriction restoration command signal to restore the restrictions by the elevator group management device 7.

[0018] The robot server 2 is connected to the relay device 5 wirelessly or via a cable 4. Similarly, the security management device 3 is connected to the relay device 5 wirelessly or via a cable 4. Also, the relay device 5 is connected to the elevator group management device 7 via a hoistway transmission cable 6. The relay device 5 communicates with the robot server 2, the security management device 3, and the elevator group management device 7 respectively.

[0019] For example, when the relay device 5 receives a signal such as a call registration request from the robot server 2, it transmits the signal to the elevator group control device 7. In addition, when the relay device 5 receives a signal such as a request to lift security restrictions from the security management device 3, it transmits the signal to the elevator group control device 7. The relay device 5 relays communications between the robot server 2 and the elevator group control device 7, and between the security management device 3 and the elevator group control device 7.

[0020] The robot server 2, security management device 3, cable 4, and relay device 5 are provided, for example, in a manager's room 17 of the facility. The elevator group management device 7, transmission cable 8, and elevator car control device 9 are provided, for example, inside a machine room 19.

[0021] 1, the robot 1 communicates with the relay device 5 via the robot server 2. The robot 1 and the relay device 5 may be configured to communicate directly with each other without going through the robot server 2.

[0022] As shown in Fig. 2, the robot server 2 has a transmission unit 2A and a reception unit 2B. The relay device 5 has a transmission unit 5A, a reception unit 5B, a release request response recording unit 5C, and a release request response matching unit 5D. The security management device 3 has a transmission unit 3A and a reception unit 3B. The elevator group control device 7 has a transmission unit 7A, a reception unit 7B, a security release unit 7C, and a call registration allocation unit 7D.

[0023] The transmitting unit 2A of the robot server 2 has a function of transmitting signals, such as a request from the robot 1 to release security at the boarding floor, a request from the robot 1 to release security at the destination floor, a request from the robot 1 to register a boarding floor call, and a request from the robot 1 to register a destination floor call, to the receiving unit 5B of the relay device 5. At this time, the transmitting unit 2A transmits various signals as a signal including a robot ID, which is an identifier that identifies the robot 1.

[0024] The receiving unit 2B of the robot server 2 has a function of receiving, from the transmitting unit 5A of the relay device 5, each of the security release response for the boarding floor, the security release response for the destination floor, the response to the call registration for the boarding floor, and the response to the call registration for the destination floor.

[0025] The transmitting unit 3A of the security management device 3 has a function of transmitting each of the security release request for the boarding floor and the security release request for the destination floor to the receiving unit 5B of the relay device 5. The receiving unit 3B of the security management device 3 has a function of receiving, from the transmitting unit 5A of the relay device 5, each of the security release request for the boarding floor transferred from the transmitting unit 5A of the relay device 5, the security release response for the boarding floor transmitted from the transmitting unit 5A of the relay device 5, the security release request for the destination floor transferred from the transmitting unit 5A of the relay device 5, and the security release response for the destination floor transmitted from the transmitting unit 5A of the relay device 5.

[0026] The transmitting unit 5A of the relay device 5 has a function of transmitting each of the security release request for the boarding floor, the security release response for the boarding floor, the call registration request for the boarding floor, the call registration response for the boarding floor, the security release request for the destination floor, the security release response for the destination floor, the call registration request for the destination floor, and the call registration response for the destination floor to the receiving unit 2B of the robot server 2 or the receiving unit 3B of the security management device 3 or the receiving unit 7B of the elevator group management device 7.

[0027] The receiving unit 5B of the relay device 5 receives each of the following: a request for releasing the security of the boarding floor from the transmitting unit 2A of the robot server 2, a request for releasing the security of the boarding floor from the transmitting unit 3A of the security management device 3, a response for releasing the security of the boarding floor from the transmitting unit 7A of the elevator group management device 7, a request for registering a call to the boarding floor from the transmitting unit 2A of the robot server 2, a response for registering a call to the boarding floor from the transmitting unit 7A of the elevator group management device 7, a request for releasing the security of the destination floor from the transmitting unit 2A of the robot server 2, a request for releasing the security of the destination floor from the transmitting unit 3A of the security management device 3, a response for releasing the security of the destination floor from the transmitting unit 7A of the elevator group management device 7, a request for registering a call to the destination floor from the transmitting unit 2A of the robot server 2, and a response for registering a call to the destination floor from the transmitting unit 7A of the elevator group management device 7.

[0028] The release request response recording unit 5C has a function of recording the content of the signal of the request for releasing the security of the boarding floor or the destination floor transmitted from the transmitting unit 2A of the robot server 2 and the content of the signal of the response for releasing the security of the boarding floor or the destination floor transmitted from the transmitting unit 7A of the elevator group management device 7. The release request response recording unit 5C records after associating the content of the signal of the request for releasing the security transmitted from the robot server 2 and the content of the signal of the response for releasing the security transmitted from the elevator group management device 7. The release request response recording unit 5C records at least one of, for example, the robot ID which is an identifier for specifying the robot 1, the success or failure of the response for releasing the security, the floor where the security release was performed, the reception time of the request for releasing the security, and the reception time of the response for releasing the security.

[0029] The cancellation request response verification unit 5D verifies the content of the security cancellation request signal for the boarding floor or the destination floor transmitted from the transmission unit 2A of the robot server 2 against the past records recorded in the cancellation request response recording unit 5C. Depending on the verification result, specifically, depending on whether or not it meets the specified conditions described later, the cancellation request response verification unit 5D transfers the security cancellation request signal to relay it through the security management device 3 or directly transfers the security cancellation request signal to the elevator group management device 7 without relaying it through the security management device 3 for selection.

[0030] The transmission unit 7A of the elevator group management device 7 has a function of transmitting each of the security cancellation response for the boarding floor, the registration response for the call to the boarding floor, the security cancellation response for the destination floor, and the registration response for the call to the destination floor to the reception unit 5B of the relay device 5. The reception unit 7B of the elevator group management device 7 has a function of receiving each of the security cancellation request for the boarding floor from the transmission unit 5A of the relay device 5, the registration request for the call to the boarding floor from the transmission unit 5A of the relay device 5, the security cancellation request for the destination floor from the transmission unit 5A of the relay device 5, and the registration request for the call to the destination floor from the transmission unit 5A of the relay device 5.

[0031] The security cancellation unit 7C has a function of receiving a security cancellation request for the boarding floor and canceling the security restriction for the corresponding boarding floor, and a function of receiving a security cancellation request for the destination floor and canceling the security restriction for the corresponding destination floor. The call registration assignment unit 7D has a function of selecting one of the individual elevator control devices 9 connected to the elevator group management device 7 to register a call to the boarding floor, and a function of selecting one of the individual elevator control devices 9 connected to the elevator group management device 7 to register a call to the destination floor.

[0032] FIG. 3 is a diagram showing an example of the hardware configuration of the main part of the elevator system according to Embodiment 1. The functions of the robot server 2, the security management device 3, the relay device 5, and the elevator group management device 7, which are the main parts of the elevator system, can be realized by a processing circuit. The processing circuit includes, for example, a ROM 20a (ROM: Read Only Memory), a RAM 20b (RAM: Random Access Memory), and an EEPROM 20c (EEPROM: Electrically Erasable Programmable Read-Only Memory), and a CPU 20d (CPU: Central Processing Unit). The ROM 20a stores programs executed on the elevator system. The RAM 20b stores working information such as temporary storage of communication packet data. The EEPROM 20c stores information such as command data for playback and command response data. The CPU 20d executes the programs stored in the ROM 20a. Part or all of the processing circuit may be configured by dedicated hardware. Part or all of the processing circuit may be configured by software or firmware.

[0033] The elevator system according to the present embodiment, for example, reads a program recorded on a recording medium by each device such as the robot server 2, the security management device 3, the relay device 5, and the elevator group management device 7, and operates according to the program to execute each function. The recording medium for recording the program may be, for example, built into the processing circuit of each device, may be connected to each device, or may be a medium from which information is read by a reading device such as a drive of each device. The program may be a software package including a plurality of softwares operating on each of a plurality of devices constituting the elevator system.

[0034] FIG. 4 is a flowchart showing a series of operation examples at the time of first communication in the elevator system according to Embodiment 1. First, when the robot 1 arrives at the landing (step S301), a signal including information of a robot ID, which is an identifier for identifying the robot, is transmitted from the transmission unit 2A of the robot server 2 to the reception unit 5B of the relay device 5 as a request for releasing the security of the boarding floor (step S302). The release request response recording unit 5C of the relay device 5 records information such as the robot ID, the release request floor of the security, and the reception time of the security release request in the security release request for the boarding floor (step S303).

[0035] Next, a request for releasing the security of the boarding floor is transmitted from the transmission unit 5A of the relay device 5 to the reception unit 3B of the security management device 3 so as to be transferred (step S304). The transmission unit 3A of the security management device 3 transmits a request for releasing the security of the boarding floor to the reception unit 5B of the relay device 5 (step S305).

[0036] Next, a request for releasing the security of the boarding floor is transmitted from the transmission unit 5A of the relay device 5 to the reception unit 7B of the elevator group management device 7 so as to be relayed and transferred (step S306). The security release unit 7C of the elevator group management device 7 releases the security restriction of the corresponding boarding floor (step S307). Then, a security release response for the boarding floor is transmitted from the transmission unit 7A of the elevator group management device 7 to the reception unit 5B of the relay device 5 (step S308).

[0037] The release request response recording unit 5C of the relay device 5 records the content of the security release response for the boarding floor in association with the content of the security release request recorded in the process of step S303 (step S309). For example, information on the success or failure of the security release response and the reception time is recorded.

[0038] Next, the transmission unit 5A of the relay device 5 transmits a security release response for the boarding floor to the reception unit 3B of the security management device 3 and the reception unit 2B of the robot server 2 so as to transfer it (steps S310 and S311). By the processing from step S301 to step S311 described above, the security restriction for the boarding floor of the robot 1 is released.

[0039] Next, the transmission unit 2A of the robot server 2 transmits a registration request for a call to the boarding floor to the reception unit 5B of the relay device 5 (step S312). Then, the transmission unit 5A of the relay device 5 transmits a registration request for a call to the boarding floor to the reception unit 7B of the elevator group management device 7 so as to transfer it (step S313). The call registration allocation unit 7D of the elevator group management device 7 selects one of the individual car control devices 9 of the elevators connected to the elevator group management device 7 and registers a call to the boarding floor (step S314). Then, the transmission unit 7A of the elevator group management device 7 transmits information on the assigned car 11 and the success or failure of call registration as a registration response for the call to the boarding floor to the reception unit 5B of the relay device 5 (step S315). The transmission unit 5A of the relay device 5 transmits a call registration response for the boarding floor to the reception unit 2B of the robot server 2 so as to transfer it (step S316).

[0040] When the robot 1 gets on the car 11 (step S317), the transmission unit 2A of the robot server 2 transmits a security release request for the destination floor as a signal including information on the robot ID identifying the robot 1 to the reception unit 5B of the relay device 5 (step S318). The release request response recording unit 5C of the relay device 5 records information such as the robot ID, the security release request floor, and the reception time of the security release request in the security release request for the destination floor (step S319).

[0041] Next, a request for releasing the security of the destination floor is transmitted from the transmission unit 5A of the relay device 5 to the reception unit 3B of the security management device 3 so as to be transferred (step S320). Then, a request for releasing the security of the destination floor is transmitted from the transmission unit 3A of the security management device 3 to the reception unit 5B of the relay device 5 so as to be relayed (step S321).

[0042] Next, a request for releasing the security of the destination floor is transmitted from the transmission unit 5A of the relay device 5 to the reception unit 7B of the elevator group management device 7 so as to be transferred (step S322). The security release unit 7C of the elevator group management device 7 releases the security restriction of the corresponding destination floor (step S323). Then, a security release response for the destination floor is transmitted from the transmission unit 7A of the elevator group management device 7 to the reception unit 5B of the relay device 5 (step S324).

[0043] The release request response recording unit 5C of the relay device 5 records the security release response for the destination floor in association with the content of the security release request recorded in the process of step S319 (step S325). For example, the success or failure of the security release response and the reception time are recorded.

[0044] Next, a security release response for the destination floor is transmitted from the transmission unit 5A of the relay device 5 to the reception unit 3B of the security management device 3 and the reception unit 2B of the robot server 2 so as to be transferred (step S326 and step S327). By the processes from step S317 to step S327 above, the security restriction for the destination floor of the robot 1 is released.

[0045] Next, a registration request for a call to the destination floor is transmitted from the transmission unit 2A of the robot server 2 to the reception unit 5B of the relay device 5 (step S328). Then, a registration request for a call to the destination floor is transmitted from the transmission unit 5A of the relay device 5 to the reception unit 7B of the elevator group management device 7 so as to be transferred (step S329). The call registration assignment unit 7D of the elevator group management device 7 registers a call to the destination floor in one of the individual elevator control devices 9 connected to the elevator group management device 7 (step S330).

[0046] A step (step S331) of transmitting, as a registration response for a destination floor call, information on the assigned car 11 and the success or failure of call registration from the transmission unit 7A of the elevator group management device 7 to the reception unit 5B of the relay device 5. Also, a transmission is made from the transmission unit 5A of the relay device 5 to the reception unit 2B of the robot server 2 so as to transfer the registration response for the destination floor call (step S332). After the elevator car 11 arrives at the destination floor, the robot 1 gets off (step S333).

[0047] FIG. 5 is a flowchart showing a series of operation examples during communication after the second time in the elevator system according to the first embodiment. Also, FIG. 6 is a table showing an example of past records of the cancellation request response recording unit 5C in the elevator system according to the first embodiment. The processes from step S301 to step S303 in FIG. 5 are the same as the series of operations of the first communication shown in FIG. 4, and thus detailed description thereof is omitted.

[0048] The cancellation request response verification unit 5D of the relay device 5 verifies the content of the security cancellation request for the boarding floor recorded in the process of step S303 with the past record content in the cancellation request response recording unit 5C (step S401).

[0049] In the process of step S401, the cancellation request response verification unit 5D of the relay device 5 determines, for example, whether at least one of the following conditions (1) to (3) is satisfied.

[0050] Condition (1) The reception time of the security cancellation request is within the reference time (for example, 24 hours) from the latest time of the security cancellation response in the past record of the cancellation request response recording unit 5C. Condition (2) The robot ID included in the received security cancellation request signal exists in the past record of the cancellation request response recording unit 5C. Condition (3) The cancellation request floor in the received security cancellation request exists in the past record of the cancellation request response recording unit 5C and the cancellation was successful.

[0051] If any of the above conditions (1) to (3) is satisfied, a signal for requesting deactivation of security at the boarding floor is transferred directly to the elevator group control device 7 without relaying through the security control device 3 (step S402). In the example shown in Fig. 6, the security deactivation request for "No. 5" is a case in which the above conditions (1) to (3) are satisfied for the past record "No. 3". If the condition is not satisfied, the process of step S304 in the series of operations for the initial communication shown in Fig. 4 is carried out, and the series of processing flows in Fig. 4 are subsequently carried out.

[0052] The processing from step S307 to step S309 in Fig. 5 is the same as the series of operations in the initial communication shown in Fig. 4, and therefore detailed explanations will be omitted. The processing from step S311 in Fig. 5 is also the same as that in Fig. 4. In the example of Fig. 5, the processing from step S310 in Fig. 4 is unnecessary. The processing from step S312 to step S318 in Fig. 5 is the same as the series of operations in the initial communication shown in Fig. 4, and therefore detailed explanations will be omitted.

[0053] The deactivation request response collating unit 5D of the relay device 5 collates the contents of the security deactivation request for the destination floor received in step S318 with the contents previously recorded in the deactivation request response recording unit 5C (step S403). Specifically, it is determined whether any of the above conditions (1) to (3) are satisfied. If any of the conditions (1) to (3) are satisfied, the signal for the deactivation request for the security for the destination floor is transferred directly to the elevator group control device 7 without relaying it through the security control device 3 (step S404). If the condition is not satisfied, the process of step S320 in the series of operations for the initial communication shown in FIG. 4 is performed, and the series of processing flows in FIG. 4 are also performed thereafter.

[0054] The processing from step S323 to step S325 in FIG. 5 is the same as the series of operations of the initial communication shown in FIG. 4, so detailed description thereof is omitted. Also, the processing of step S327 in FIG. 5 is the same as that in FIG. 4. In the example of FIG. 5, the processing of step S326 in FIG. 4 is unnecessary. The processing from step S328 to step S333 in FIG. 5 is the same as the series of operations of the initial communication shown in FIG. 4, so detailed description thereof is omitted.

[0055] In the present embodiment, the relay device 5 can transfer the request for releasing the security of the boarding floor and the request for releasing the security of the destination floor from the robot server 2 to the security management device 3. In the elevator system of the present embodiment, there is no need for direct cooperation and communication between the robot server 2 and the security management device 3. In the case of the present embodiment, for example, the robot manufacturer of the robot server 2 and the security manufacturer of the security management device 3 only need to consider and implement the function of cooperating and communicating with only the relay device 5. According to the present embodiment, in an elevator system in which both the robot server 2 and the security management device 3 cooperate with the same elevator, the difficulty of implementation by a user such as a manufacturer can be reduced.

[0056] The cancellation request response recording unit 5C of the relay device 5 in the present embodiment records the robot ID, the cancellation request floor, and the reception time in the security cancellation request for the boarding floor and the security cancellation request for the destination floor from the transmission unit 2A of the robot server 2. Further, the cancellation request response recording unit 5C of the relay device 5 associates and records the success or failure of the cancellation response in the security cancellation response for the boarding floor and the security cancellation response for the destination floor from the transmission unit 7A of the elevator group management device 7 with the security cancellation request for the boarding floor or the security cancellation request for the destination floor. The cancellation request response verification unit 5D of the relay device 5 verifies the security cancellation request from the robot server 2 against past records, and when it meets a predetermined condition, that is, when it is determined that security is ensured, it makes unnecessary the relay to the security management device 3. Thereby, as a system, it is possible to suppress the possibility of a delay occurring due to relaying communication.

[0057] As described above, the cancellation request response verification unit 5D of the relay device 5 in the present embodiment verifies the content of the security cancellation request from the robot server 2 against the past communication records of the cancellation request response recording unit 5C and determines whether a predetermined condition is satisfied. Specifically, it makes a determination based on three conditions: the robot ID that identifies the robot 1, the floor targeted by the security cancellation request, and the reception time. Thereby, the security of the system can be ensured. Note that the condition determination may be made as to whether all three conditions are satisfied with emphasis on security, or may be made as to whether at least one condition is satisfied in consideration of the difficulty of implementation and countermeasures against communication delay.

Explanation of Signs

[0058] 1 Robot, 2 Robot Server, 2A Transmitter, 2B Receiver, 3 Security Management Device, 3A Transmitter, 3B Receiver, 4 Cable, 5 Relay Device, 5A Transmitter, 5B Receiver, 5C Release Request Response Recording Unit, 5D Release Request Response Verification Unit, 6 Elevator Shaft Transmission Cable, 7 Elevator Group Management Device, 7A Transmitter, 7B Receiver, 7C Security Release Unit, 7D Call Registration Assignment Unit, 8 Transmission Cable, 9 Individual Elevator Control Device, 10 Cable, 11 Car, 12 Wire Rope, 13 Hoisting Machine, 14 Deflector Sheave, 15 Counterweight, 16 Landing, 17 Superintendent's Office, 18 Elevator Shaft, 19 Machine Room, 20a ROM, 20b RAM, 20c EEPROM, 20d CPU

Claims

1. A robot server for controlling a robot, A security management device capable of requesting release of security restrictions on a specific floor of an elevator, An elevator group management device for performing security restrictions and releases on a specific floor of an elevator, A relay device that communicates with the robot server, the security management device, and the elevator group management device, Comprising, When the relay device receives a security release request signal from the robot server, it is configured to transfer the release request signal, When the security management device receives a security release request signal from the relay device, it transmits the release request signal to the elevator group management device via the relay device, When the elevator group management device receives a security release request signal from the relay device, it releases the security restriction and transmits a security release response signal to the relay device, The relay device, A release request response recording unit that associates and records the content of the security release request signal transmitted from the robot server with the content of the security release response signal transmitted from the elevator group management device, The content of the security release request signal transmitted from the robot server is compared with the past recorded content recorded in the release request response recording unit, and depending on the comparison result, the security release request signal is transferred to relay the security management device or the security release request signal is transferred to the elevator group management device without relaying the security management device. A release request response collation unit that selects, An elevator system having.

2. The elevator system according to claim 1, wherein the release request response recording unit records at least one of an identifier for identifying the robot, success or failure of a security release response, a floor where the security release was performed, a reception time of the security release request, and a reception time of the security release response.

3. When the specified condition is not satisfied, the release request response collation unit transfers the security release request signal to relay the security management device, and when the specified condition is satisfied, the security release request signal is transferred to the elevator group management device without relaying the security management device. The specified conditions are at least one of the following: the reception time of the security release request is within the reference time from the latest time of the security release response in the past records of the release request response recording unit; the identifier for identifying the robot included in the received signal exists in the past records of the release request response recording unit; and the release request level in the security release request exists in the past records of the release request response recording unit and the release was successful. The elevator system according to claim 1.

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