Elevator control method and system

Abstract

To provide an elevator control system in order to solve an exceptional situation of an elevator car that occurs through communication between a robot control system and the elevator control system while a robot is using the elevator car.SOLUTION: An elevator control method includes the steps of: receiving a request signal from a robot; registering an elevator control signal for controlling an operation of an elevator based on the request signal; determining whether an exceptional situation occurs in which an operation of the elevator based on the elevator control signal conflicts with a current situation based on an image obtained through a camera disposed in the elevator, a position of the robot, and an environment of a landing; maintaining the currently registered elevator control signal in response to determining that the current situation does not correspond to the exceptional situation; and releasing the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] A robot used to provide services within a building gets on an elevator car installed in the building and moves to a destination floor. While the robot is using the elevator car, an exceptional situation in which the control of the elevator by the robot control system differs from the actual situation may cause problems such as damage to the robot or delay in providing elevator services to passengers. For example, if the elevator car door closes while the robot is getting on or off the elevator car, the robot may be damaged. Also, if the elevator car door is open despite the robot getting on or off, the elevator car cannot move to the destination floor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Korean Patent No. 10-2516841 [Patent Document 2] Korean Patent Publication No. 2022-0139528 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention seeks to solve the exception situation of the elevator car that occurs during the robot's use of the elevator car through communication between the robot control system and the elevator control system. [Means for solving the problem]

[0005] In one aspect of the present disclosure, an elevator control method includes: receiving a request signal from a robot; registering an elevator control signal for controlling an operation of the elevator based on the request signal; determining whether an exceptional situation occurs in which an operation of the elevator based on the elevator control signal conflicts with a current situation, based on an image obtained through a camera disposed in the elevator, a position of the robot, and an environment of a landing; maintaining the currently registered elevator control signal in response to determining that the current situation does not correspond to the exceptional situation; and releasing the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation.

[0006] In an embodiment, in response to determining that the current situation corresponds to the exceptional situation, after the step of releasing the currently registered elevator control signal, the method may further include a step of registering a new elevator control signal different from the currently registered elevator control signal.

[0007] In one embodiment, the currently registered elevator control signal is a signal for assigning a hall call to the elevator, and the step of determining whether an exceptional situation occurs in which an operation of the elevator according to the elevator control signal conflicts with a current situation may include a step of determining that the current situation corresponds to the exceptional situation in response to determining that a robot waiting for the elevator to which the hall call is assigned is not present at the hall.

[0008] In one embodiment, the currently registered elevator control signal is a signal that maintains the elevator door in an open state and takes priority over a passenger pressing a door close button of the elevator, and the step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation may include a step of determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is no robot on board the elevator and no robot waiting to board the elevator continues for more than a preset time.

[0009] In one embodiment, the currently registered elevator control signal includes a signal to keep the elevator doors open and a car call, and the step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation may include a step of determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is no robot on board the elevator, a state in which there is no robot waiting to board, and a state in which there is no robot on board the elevator continues for more than a preset time.

[0010] In one embodiment, the currently registered elevator control signal includes a signal to close the elevator door, and the step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation may include a step of determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is a robot riding in the elevator and a state in which there is a robot waiting to ride in the elevator continues for more than a preset time.

[0011] In one embodiment, the currently registered elevator control signal is a signal for maintaining the elevator door in an open state, and the step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation may include a step of determining that the current situation corresponds to the exceptional situation in response to determining that no robots are disembarking from the elevator and that the number of robots in the elevator is equal to the number of robots desired to be boarded upon completion of the car call service.

[0012] In one embodiment, the currently registered elevator control signal is a signal to close the elevator door, and the step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation may include a step of determining that the current situation corresponds to the exceptional situation in response to determining that there is a robot disembarking from the elevator and that the number of robots in the elevator is greater than the number of robots desired to be on board at the completion of the car call service.

[0013] In one aspect of the present disclosure, an elevator control system includes a memory configured to store each command, and a processor configured to register an elevator control signal for controlling an operation of an elevator based on a request signal received from a robot in response to executing the command; determine whether an exceptional situation occurs in which an operation of the elevator based on the elevator control signal conflicts with a current situation based on an image obtained through a camera disposed in the elevator, a position of the robot, and an environment of a landing; maintain the currently registered elevator control signal in response to determining that the current situation does not correspond to the exceptional situation; and release the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation.

[0014] According to one aspect of the present invention, an elevator system includes an elevator; a camera disposed in the elevator and configured to acquire at least one image information of an interior image of the elevator and an image of a hall when the elevator door is opened; a hall sensor disposed in the hall and configured to acquire image information of the hall; and a processor configured to generate a control signal to control an operation of the elevator based on a request signal received from a robot. The processor is configured to determine an exceptional situation in which an operation of the elevator according to the control signal conflicts with a current situation based on at least one of the at least one image information acquired by the camera and the image information acquired by the hall sensor, and control the elevator.

[0015] In one embodiment, the elevator further includes a weight sensor that acquires weight information of an object loaded on the elevator, and the processor may be configured to determine an exception situation in which operation of the elevator according to the control signal conflicts with a current situation based further on the weight information. Effect of the Invention

[0016] The present invention can control the robot linkage service according to the situation that may occur between the elevator car and the robot, thereby improving the efficiency of elevator car operation.

[0017] Additionally, the present invention can prevent the elevator car doors from being open when they should be closed, or from closing when they should be open. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 illustrates an example of an elevator control environment according to one embodiment of the present disclosure. [Diagram 2]FIG. 1 is a block diagram of an elevator riding robot according to an embodiment of the present disclosure. [Diagram 3] FIG. 1 is a block diagram of a robot control system for controlling a robot according to an embodiment of the present disclosure. [Figure 4] FIG. 1 is a block diagram of a system for controlling an elevator according to one embodiment of the present disclosure. [Diagram 5] 1 is a flowchart of a method performed in a system for controlling an elevator according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present disclosure will now be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. However, the present disclosure may be embodied in many different forms and is not limited to the embodiments set forth herein.

[0020] In order to clearly illustrate the present disclosure in the drawings, parts that are not relevant to the description are omitted, and similar parts are designated by similar reference numerals throughout the specification.

[0021] Throughout the specification, when a part "comprises" an element, this means that it may further include other elements, rather than excluding other elements, unless specifically stated to the contrary.

[0022] The technology described in this disclosure is not intended to be limited to a particular embodiment, but should be understood to include various modifications, equivalents, and / or alternatives to the embodiments of the present disclosure.

[0023] The phrase "configured to" as used in this disclosure may be replaced with, for example, "suitable for," "capable of," "designed to," "modified to," "made to," or "capable of," depending on the context. The term "configured to" does not necessarily mean only "specially designed" in terms of hardware. Instead, in any context, the phrase "apparatus configured to" may mean that the apparatus is "capable of" in conjunction with other apparatus or components.

[0024] The prior art documents mentioned in this disclosure are incorporated herein by reference in their entirety, and the contents of the prior art documents can be understood by a person having ordinary skill in the art to be applicable to the parts briefly described in this disclosure.

[0025] FIG. 1 is an illustration of an elevator control environment according to one embodiment of the present disclosure.

[0026] 1, the elevator control environment includes an elevator 100, a landing sensor 10 that acquires an image of the elevator landing, a robot 200 that boards the elevator 100 and then moves to a destination floor, a robot control system 300 that controls the robot 200, and an elevator control system 400 that controls the elevator 100. In one embodiment, a configuration including the elevator 100, the landing sensor 10, and the elevator control system 400 may be named an elevator system.

[0027] When the door 110 of the elevator 100 is opened, the robot 200 can board. A camera 130 may be installed inside the elevator 100, and a weight sensor 120 may be installed on the floor of the elevator 100. The camera 130 may be configured to acquire images of passengers and the robot 200 inside the elevator 100. The camera 130 may also be configured to acquire images of the door 110 and distinguish whether the door is opened or closed. When the door 110 is opened, the camera 130 may be configured to acquire an image of a landing on the other side of the door 110 of the elevator 100 through the open door 110. The weight sensor 120 may be configured to sense the weight of the passengers and the robot 200 boarding the elevator 100. The image acquired by the camera 130 and the weight sensed by the weight sensor 120 may be transmitted to the elevator control system 400.

[0028] In one embodiment, from images acquired from the camera 130, the elevator control system 400 can determine the number of robots 200 inside the elevator. As the elevator control system 400 receives hall calls or car calls originating from the robots 200, it can calculate the number of robots desired upon completion of the hall call or car call service. For example, when the hall call service is completed, the number of on-board robots should increase, and when the car call service is completed, the robots disembark and the number of on-board robots should decrease.

[0029] The weight sensor 120 detects the weight of the passengers boarding the elevator 100 and the robot 200 and transmits the weight to the elevator control system 400, so that the elevator control system 400 can determine whether the robot 200 has boarded / alighted based on the information from the weight sensor 120. The camera 130 can obtain an image of the door 110 and transmit it to the elevator control system 400. The elevator control system 400 can determine whether the robot 200 has boarded / alighted based on the opening and closing of the door 110. The reason why the door 110 does not close after opening is because the robot 200 cannot board or alight.

[0030] The landing sensor 10 may be configured to acquire the location and presence or absence of a passenger and / or a robot 200 within the landing. The information acquired by the landing sensor 10 may be transmitted to the elevator control system 400.

[0031] The robot 200 is a service robot used to provide services within a building, which will be described in more detail with reference to Fig. 2. At least a portion of the movement of the robot 200 and the calls to the elevator 100 may be performed through a robot control system 300, which will be described in more detail with reference to Fig. 3. The elevator control system 400 may be configured to control multiple elevators including the elevator 100. The elevator control system 400 can, for example, move an appropriate elevator (e.g., the elevator 100) among the multiple elevators to a floor where the robot 200 is located.

[0032] In one embodiment, the robot 200 may include at least a portion of the configuration of the robot control system 300. Alternatively, the robot 200 and the robot control system 300 may be physically separated from each other. For example, the robot 200 and the robot control system 300 may be implemented as separate servers.

[0033] In one embodiment, in order for the robot 200 to board the elevator 100, the robot 200 transmits an elevator call command signal (e.g., a hall call) to the elevator control system 400 through the robot control system 300. The elevator control system 400 can assign the hall call to the most suitable elevator (here, for example, the elevator 100). The elevator 100 that receives the hall call arrives at the landing where the robot 200 is waiting. In one embodiment, the robot 200 can transmit a destination floor together with the elevator call command signal.

[0034] When the elevator 100 arrives at the landing and the door 110 of the elevator 100 opens, the robot 200 can transmit a robot boarding signal to the elevator control system 400 through the robot control system 300 in order to board the elevator 100. In response to receiving the robot boarding signal, the elevator control system 400 can transmit a door open keep signal to the elevator 100 to keep the door 110 open. The door 110 can be kept open until a robot boarding completion signal is received. In one embodiment, the robot 200 can transmit a destination floor together with the boarding completion signal.

[0035] After the robot 200 has completed boarding the elevator 100, the robot 200 can transmit a robot boarding completion signal to the elevator control system 400 via the robot control system 300. In response to receiving the robot boarding completion signal, the elevator control system 400 can transmit a door close signal to the elevator 100 and control the door 110 to close in a state where the door 110 is open.

[0036] After the robot 200 has boarded the elevator 100, the door 110 closes and the elevator 100 moves toward the destination floor. The destination floor registration signal (car call) can be transmitted together with the robot 200 when transmitting a hall call, or the robot 200 can transmit a car call to the elevator control system 400 through the robot control system 300 after the robot 200 has boarded the elevator 100.

[0037] In response to the elevator 100 arriving at the destination floor, the door 110 is opened. The robot 200 can transmit a signal indicating that the robot is getting off to the elevator control system 400 through the robot control system 300 in order to get off. In response to receiving the signal indicating that the robot is getting off, the elevator control system 400 can transmit a keep door open signal to the elevator 100 and control the door 110 to maintain an open state.

[0038] After the robot 200 has completed disembarking from the elevator 100, the robot 200 can transmit a robot disembarkation completion signal to the elevator control system 400 via the robot control system 300. In response to receiving the robot disembarkation completion signal, the elevator control system 400 can transmit a door close signal to the elevator 100 and control the door 110 to close in a state where the door 110 is open.

[0039] FIG. 2 is a block diagram of an elevator riding robot 200 according to one embodiment of the present disclosure.

[0040] 2, the robot 200 includes a processor 210, a memory 220, a sensor 230, a communication unit 240, and a driving unit 250. The processor 210 may be configured to control the robot (e.g., movement, mapping, data processing, etc.) and control components of the robot 200 when instructions stored in the memory 220 are executed. The processor 210 may control the communication unit 240 and transmit each of the above-mentioned signals to the elevator control system 400 through the robot control system 300. In addition, the processor 210 may transmit information collected by the sensor 230 or information regarding the movement of the robot 200 (e.g., getting on, getting off, waiting) to the elevator control system 400 through the robot control system 300.

[0041] The processor 210 can control the robot 200 based on information sensed by the sensor 230. In one embodiment, the processor 210 can be any form of processor or controller for performing functions, such as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other.

[0042] The sensor 230 may be configured to collect data required for autonomous driving of the robot 200. Through the sensor 230, the robot 200 can sense the opening and closing of the door 110 after the elevator 100 arrives at a landing or a destination floor. Based on the opening and closing of the door 110, the robot 200 can get on or off the elevator 100. Information sensed by the sensor 230 can be transmitted to the elevator control system 400 through the robot control system 300 via the communication unit 240.

[0043] The communication unit 240 may be a configuration for the robot 200 to communicate with other devices, such as the robot control system 300. The communication unit 240 may be a hardware module, such as an antenna, a data bus, a network interface card, a network interface chip, and a networking interface port of the robot 200, which transmits / receives data and / or information, or a software module, such as a network device driver or a networking program. The drive unit 250 is a configuration that enables the robot 200 to move, and may include hardware such as a motor and wheels for achieving this.

[0044] FIG. 3 is a block diagram of a robot control system 300 that controls a robot according to an embodiment of the present disclosure. The robot control system 300 may be a device that controls the movement of the robot 200 and the provision of services by the robot 200 in a building. The robot control system 300 may call the elevator 100 to move the robot 200 to a destination floor through communication with the elevator control system 400. After the robot 200 recognizes the called elevator 100, the robot control system 300 may control the robot 200 to board the elevator 100 and to get off the elevator 100 at the destination floor. The robot control system 300 may include at least one computing device and may be embodied in a server located in a building or outside the building. The robot control system 300 may be embodied in a cloud server (system). The robot control system 300 may be configured to transmit a signal for controlling the elevator 100 to the elevator control system 400 based on a signal or information received from the robot 200.

[0045] 3, the robot control system 300 may include a processor 310, a memory 320, an interface 330, and a communication unit 340. The configurations of the processor 310, the memory 320, and the communication unit 340 may be similar to the configurations of the processor 210, the memory 220, and the communication unit 240 of the robot 200, so detailed description thereof will be omitted. The interface 330 may include input devices such as a keyboard, a mouse, a touch panel, a microphone, etc., and / or output devices such as a display, a speaker, etc.

[0046] FIG. 4 is a block diagram of an elevator control system 400 according to an embodiment of the present disclosure. The elevator control system 400 may be a device that controls (or generates a signal to control) the movement of the elevator 100 and calls for the elevator car 20 moving (e.g., ascending or descending) in a building. The elevator control system 400 may include at least one computing device and may be embodied in a computer system located in a building or outside the building. The elevator control system 400 may be separate from a control panel that directly controls the elevator 100. The elevator control system 400 may transmit a signal required to control the elevator 100 to the control panel. Alternatively, the elevator control system 400 may be configured to include a control panel. The elevator control system 400 may receive information from the landing sensor 10, the camera 130, and / or the weight sensor 120.

[0047] 4, an elevator control system 400 includes a processor 410, a memory 420, an interface 430, and a communication unit 440. The configurations of the processor 410, the memory 420, and the interface 430 may be similar to the configurations of the processor 310, the memory 320, the interface 330, and the communication unit 340, and therefore detailed descriptions thereof will be omitted.

[0048] As described above, the elevator control system 400 can receive an elevator call command signal, a door open hold signal, a door close signal, a destination floor signal, etc. from the robot control system 300 and control the elevator 100 accordingly. In one embodiment, the elevator control system 400 can receive a hall call from a passenger at a landing. In addition, the passenger can set a destination floor after boarding the elevator 100.

[0049] 1 again, the camera 130 installed in the elevator 100 can obtain an internal image of the elevator 100, whether the door 110 is opened or closed, and / or an image of the landing when the door 110 is open, and the like, and then transmit the images in real time to the elevator control system 400. In addition, the elevator control system 400 can receive an image of the landing from the landing sensor 10. The elevator control system 400 can determine where the robot 200 is located based on the internal image of the elevator 100, whether the door 110 is opened or closed, and / or an image of the landing when the door 110 is open, and the image of the landing obtained from the landing sensor 10.

[0050] FIG. 5 is a flowchart of a method performed in a system for controlling an elevator according to one embodiment of the present disclosure.

[0051] 5, the elevator control system 400 receives a request signal for controlling the elevator from the robot 200 (S505). The request signal may include, for example, an elevator call command signal (hall call), a destination floor setting signal (car call), a boarding signal, a boarding completion signal, an alighting signal, an alighting completion signal, etc.

[0052] The elevator control system 400 registers an elevator control signal based on the request signal (S510). The elevator control signal may include a hall call, a car call, a door open signal, a door close hold signal, a door close signal, and the like.

[0053] The elevator control system 400 determines whether the status of the elevator 100 and the robot 200 corresponds to an exceptional status different from the status caused by the elevator control signal (S515). In one embodiment, the exceptional status may include a case where the robot 200 is damaged or the operation of the elevator 100 is inefficient when the elevator control signal registered in S510 is performed. The exceptional status may include a case where the control of the elevator 100 according to the elevator control signal registered in S510 conflicts with the actual operation status of the robot 200. The elevator control system 400 may determine whether the operation of the elevator according to the elevator control signal is an exceptional status different from the current status based on an image (e.g., using the number of robots) in the elevator obtained through a camera arranged in the elevator, the position of the robot, and the environment of the hall (e.g., whether or not a waiting robot is present).

[0054] For example, 1) when the elevator control system 400 assigns a hall call to an elevator in response to a hall call request, but there is no robot waiting to board, 2) when the elevator control system 400 receives a signal that a robot is boarding and registers a door open hold signal, but there is no plan to board (e.g., there is no robot waiting at the landing, no robot passing through the elevator door, or there is no change in the number of boarding robots), or 3) when the elevator control system 400 receives a signal that a robot has boarded and registers a car call in the elevator, but there is no robot that requested the car call (e.g., it cannot determine whether a robot is boarding, or boarding has been ongoing for a preset period of time, The cases may include cases where the robot is not yet fully boarded (e.g., when there is a robot at the landing or when the robot is passing through the door), 4) when the elevator control system 400 receives a signal that the robot has completed boarding and registers a door close signal, but boarding is not complete (e.g., when there is a robot at the landing or when the robot is passing through the door), 5) when the elevator control system 400 receives a signal that the robot is disembarking and registers a keep door open signal, but there is no plan for disembarking (e.g., when it is not possible to determine whether the robot has disembarked, when there is no robot passing through the elevator door, or when there is no change in the number of boarded robots), and 6) when the elevator control system 400 receives a signal that the robot has completed disembarking and registers a door close signal, but when there is a robot disembarking and there is a robot waiting to disembark.

[0055] In response to determining that no exceptional situation exists, the elevator control system 400 maintains the control signal registered in S510 (S520).

[0056] In response to determining that an exceptional situation exists, the elevator control system 400 controls the elevator by canceling the control signal registered in S510 and / or registering a control signal different from the control signal registered in S510 (S525).

[0057] The control signals, exception conditions and different control signals registered in S510 will be described in detail below.

[0058] Typically, in order for the robot 200 to board the elevator 100, the robot 200 transmits an elevator call command signal (e.g., a hall call) to the elevator control system 400 through the robot control system 300. The elevator control system 400 can assign the hall call to the most suitable elevator (here, for example, the elevator 100). However, even if the robot 200 is not present at the hall, an exceptional situation may occur in which the hall call for the robot 200 to board is not canceled and registered in the elevator control system 400, although the reason is unknown. The hall call originating from the robot 200 may not be released even if a passenger tries to cancel it. The elevator control system 400 can cancel (release) the hall call in response to the occurrence of such an exceptional situation.

[0059] For example, based on the image acquired by the camera 130 or the hall sensor 10, the elevator control system 400 may determine that there is no waiting robot at the hall. In one embodiment, the elevator control system 400 may release the hall call in response to determining that a state in which it has been determined that there is no waiting robot at the hall is maintained for a period of time exceeding a preset time value from the time when the elevator control system 400 receives a hall call or the time when a hall call is assigned to a specific elevator. In one embodiment, the time for determining the time during which it has been determined that there is no waiting robot at the hall may be set in various ways. For example, as described above, it may be understood that the time may be set in various ways, including the time when the elevator control system 400 receives a hall call, the time when a hall call is assigned to the elevator, the time when the elevator 100 arrives at the hall, and the time when the door 110 is fully opened after the elevator 100 arrives at the hall.

[0060] In one embodiment, the elevator control system 400 can manage hall calls of passengers separately from hall calls from the robot 200. For example, the elevator control system 400 can cancel hall calls originating from the robot 200 but not cancel hall calls registered by passengers.

[0061] When the elevator 100 arrives at the landing and the door 110 of the elevator 100 opens, the robot 200 can transmit a robot boarding signal to the elevator control system 400 through the robot control system 300 in order to board the elevator 100. In response to receiving the robot boarding signal, the elevator control system 400 can transmit a door open keep signal to the elevator 100 to keep the door 110 open. The door 110 can keep the open state until the robot boarding completion signal is received. In this case, even if a passenger presses the close button of the door 110, the door 110 keeps the open state. In general, after completing boarding the elevator 100, the robot 200 can transmit a robot boarding completion signal to the elevator control system 400 through the robot control system 300. In response to receiving the robot boarding completion signal, the elevator control system 400 can transmit a door close signal to the elevator 100 to control the door 110 to close in the open state.

[0062] However, an exceptional situation may occur in which the door 110 remains open because a door close signal is not registered in the elevator control system 400 for an unknown reason even if the robots have completed boarding or are not scheduled to board (e.g., there are no robots attempting to board at the landing, there are no robots passing through the door 110 of the elevator 100, or the number of robots already boarding the elevator 100 is the same as the number of robots desired to board when the hall call service is completed). In this case, even if a passenger attempts to close the door 110, the door may remain open. In response to the occurrence of such an exceptional situation, the elevator control system 400 may register a door close signal.

[0063] In one embodiment, the elevator control system 400 may determine that there is no robot scheduled to board or currently boarding based on information obtained from at least one of the hall sensor 10, the weight sensor 120, and the camera 130, and then register a door close signal by itself and control to close the door 110 of the elevator 100. For example, in response to a state in which there is no robot scheduled to board at the hall, there is no robot passing through the door 110 of the elevator 100, or the number of robots already boarded in the elevator 100 is the same as the number of boarding robots desired at the time of completion of the hall call service, during a certain period of time from a point at which a preset time has elapsed after the door 110 is opened, the elevator control system 400 may determine that there is no robot scheduled to board or currently boarding, and register a door close signal by itself.

[0064] In one embodiment, it can be appreciated that although the elevator control system 400 registers a door close signal and controls the doors 110 of the elevator 100, if a passenger activates a door open button, the doors 110 of the elevator 100 will correspondingly open or remain open.

[0065] In one embodiment, the elevator control system 400 receives a robot boarding completion signal, and a door closing signal is registered in the elevator control system 400, or a car call for controlling the elevator 100 to move to a destination floor is registered in the elevator control system 400, and the elevator 100 is controlled to move, but an exceptional situation may occur in which there is no robot that requested the car call, or the robot 200 that responds to the car call is not on board in the elevator 100. Alternatively, an exceptional situation may occur in which a car call for controlling the elevator 100 to move to a destination floor is registered in the elevator control system 400, but there is no robot on board the elevator 100, there is no robot on board, or boarding is not performed. In such an exceptional situation, the elevator control system 400 may cancel the car call. In one embodiment, the passenger's car call may not be canceled.

[0066] In one embodiment, based on information acquired from at least one of the hall sensor 10, the weight sensor 120, and the camera 130, the elevator control system 400 may determine that the robot 200 responding to the car call is not on board the elevator 100, and may cancel the registered car call in response to such a determination. For example, in response to the elevator control system 400 determining that there is no waiting robot at the hall, there is no on-board robot, and the number of currently on-board robots is less than the number of desired on-board robots at the completion of the hall call service, the elevator control system 400 may determine that there is no robot 200 on-board that responds to the car call.

[0067] If a car call is registered along with a hall call, in response to determining that there is no waiting robot at the landing or no robot in the assigned elevator, the elevator control system 400 may cancel the registered car call (along with the hall call), except that if there is a passenger car call, the passenger car call may not be canceled.

[0068] When a car call is registered after boarding the robot 200, the elevator control system 400 determines whether the robot 200 has boarded the elevator 100, and in response to, for example, determining that the number of boarding completed robots is less than the desired number of boarding completed robots at the completion of the hall call service, the elevator control system 400 can cancel the registered car call. For example, the elevator control system 400 can count the number of robots in the elevator 100 by the camera 130, and based on this, determine that the number of boarding completed robots is less than the desired number of boarding completed robots at the completion of the hall call service.

[0069] After the robot 200 has completed boarding the elevator 100, the robot 200 can transmit a robot boarding completion signal to the elevator control system 400 via the robot control system 300. In response to receiving the robot boarding completion signal, the elevator control system 400 can transmit a door close signal to the elevator 100 and control the door 110 to close in a state where the door 110 is open.

[0070] An exceptional situation may occur in which the elevator control system 400 receives a robot boarding completion signal and a door close signal is registered in the elevator control system 400, but the robot 200 has not boarded or is boarding. In such an exceptional situation, the elevator control system 400 may cancel the door close signal, register a door open keep signal, and control the door 110 to be in an open state. Based on information acquired from at least one of the hall sensor 10, the weight sensor 120, and the camera 130, the elevator control system 400 may determine whether the robot 200 is waiting at the hall or boarding the elevator 100. In response to determining whether the robot 200 is waiting or boarding the elevator 100, the elevator control system 400 may register a door open keep signal and control the door 110 to be in an open state. The elevator control system 400 can check in real time whether the robot 200 is riding on the elevator 100 by grasping the movement of the robot 200 using at least one of the hall sensor 10, the weight sensor 120, and the camera 130. When the robot 200 is present at the hall, the elevator control system 400 can determine that the robot 200 is waiting at the hall.

[0071] In response to the elevator 100 arriving at the destination floor, the door 110 is opened. The robot 200 may transmit a robot alighting signal to the elevator control system 400 through the robot control system 300 in order to alight. In response to receiving the robot alighting signal, the elevator control system 400 may transmit a door open keep signal to the elevator 100 and control the door 110 to keep the open state. In this case, even if a passenger presses a close button to close the door 110, the door 110 may be kept open. An exceptional situation may occur in which a door open keep signal is registered in the elevator control system 400 even if the robot 200 has completed alighting or a state in which no robot is alighting has continued for a predetermined time or more. In the event of such an exceptional situation occurring, the elevator control system 400 may release the door open keep signal and register a door close signal.

[0072] For example, the elevator control system 400 can determine that no robots are scheduled to or have dismounted from the elevator 100 using the camera 130 and the weight sensor 120. The elevator control system 400 can release the door open keeping signal and register a door close signal in response to determining that the current number of boarding robots is the same as the number of boarding robots desired upon completion of the car call service and that no robots are dismounting. The elevator control system 400 can determine that no robots are scheduled to or have dismounted when the state in which the current number of boarding robots is the same as the number of boarding robots desired upon completion of the car call service and that no robots are dismounting continues for more than a predetermined time.

[0073] In one embodiment, when the elevator control system 400 receives a robot dismount completion signal, a door close signal may be registered in the elevator control system 400. However, an exceptional situation may occur in which the robot 200 is dismounting or the number of on-board robots remains unchanged. The elevator control system 400 may register a door open keep signal in response to such an exceptional situation.

[0074] The elevator control system 400 can determine in real time whether any robot is getting off the elevator based on the information received through the camera 130 or the weight sensor 120. The elevator control system 400 can also determine whether the current number of boarding robots is greater than the number of boarding robots desired upon completion of the car call service. The elevator control system 400 can release a door close signal and register a door open hold signal in response to determining that any robot is getting off the elevator or that the current number of boarding robots is greater than the number of boarding robots desired upon completion of the car call service.

[0075] The method according to the present disclosure may be embodied as a processor-readable code in a processor-readable recording medium provided in a server, system, equipment, computer, integrated control device, etc. used by any entity. The processor-readable recording medium includes all kinds of recording devices in which processor-readable data is stored. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc., and also includes those embodied in the form of carrier wave such as transmission via the Internet. In addition, the processor-readable recording medium may be distributed among computer systems connected by a network, and the processor-readable code may be stored and executed in a distributed manner.

[0076] The above-described apparatus and methods may be implemented using hardware components, software components, and / or a combination of hardware and software components. For example, the apparatus and components described in each embodiment may be implemented using one or more general-purpose or special-purpose computers, as well as a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications that run on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to the execution of software. For ease of understanding, although a single processing device may be described as being used, one skilled in the art will recognize that the processing device may include multiple processing elements and / or multiple types of processing elements. For example, the processing device may include multiple processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

[0077] The software may include a computer program, code, instructions, or a combination of one or more of these, capable of configuring or instructing a processing device to operate as desired, either individually or collectively. The software and / or data may be permanently or temporarily embodied in any type of machine, component, physical device, virtual device, computer storage medium or device, or transmitted signal wave, to be interpreted by the processing device or to provide instructions or data to the processing device. The software may also be distributed over network-coupled computer systems, stored or executed in a distributed manner. The software and data may be stored on one or more computer-readable recording media.

[0078] The embodiments described herein may also be practiced in distributed computing environments where any tasks are performed by remote processing devices that are linked through a communications network, and program modules may be located in both local and remote memory storage devices.

[0079] As described above, although each embodiment has been described with reference to limited drawings, a person having ordinary skill in the art may apply various technical modifications and variations based on the above contents. For example, appropriate results may be achieved even if each of the described technologies is performed in a different order from the method described, and / or each component of the described system, structure, device, circuit, etc. is combined or combined in a different manner from the method described, or is replaced or substituted by other components or equivalents.

[0080] Therefore, other implementations, embodiments, and equivalents of the claims are also intended to fall within the scope of the following claims. [Explanation of symbols]

[0081] 100 Elevator 200 Robots 300 Robot Control System 400 Elevator Control System 210, 310, 410 processors 220, 320, 420 Memory 230 Sensors 240, 340, 440 Communications Department 250 Drive unit 330, 430 Interface

Claims

1. receiving a request signal from the robot; registering an elevator control signal for controlling an operation of the elevator based on the request signal; determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation, based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; maintaining the currently registered elevator control signal in response to determining that the current condition does not correspond to the exception condition; and in response to determining that the current situation corresponds to the exception situation, canceling the currently registered elevator control signal; The currently registered elevator control signal is a signal for assigning a hall call to the elevator, The step of determining whether an exceptional situation occurs in which an operation of the elevator according to the elevator control signal conflicts with a current situation includes a step of determining that the current situation corresponds to the exceptional situation in response to determining that a robot waiting for the elevator to which the hall call is assigned is not present at the hall.

2. After the step of releasing the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation, 2. The elevator control method according to claim 1, further comprising the step of registering a new elevator control signal different from the currently registered elevator control signal.

3. A step of receiving a request signal from the robot; registering an elevator control signal for controlling an operation of the elevator based on the request signal; determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation, based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; maintaining the currently registered elevator control signal in response to determining that the current condition does not correspond to the exception condition; and in response to determining that the current situation corresponds to the exception situation, canceling the currently registered elevator control signal; The currently registered elevator control signal is a signal that takes precedence over a passenger pressing a door close button of the elevator as a signal to keep the elevator door open, The step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes a step of determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is no robot on board the elevator and no robot waiting to board the elevator continues for more than a preset time.

4. A step of receiving a request signal from the robot; registering an elevator control signal for controlling an operation of the elevator based on the request signal; determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation, based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; maintaining the currently registered elevator control signal in response to determining that the current condition does not correspond to the exception condition; and in response to determining that the current situation corresponds to the exception situation, canceling the currently registered elevator control signal; The currently registered elevator control signals include a signal to hold the elevator doors open and a car call; The step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes a step of determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is no robot on board the elevator, a state in which there is no robot waiting to board, and a state in which there is no passenger on the elevator continues for more than a preset time.

5. A step of receiving a request signal from the robot; registering an elevator control signal for controlling an operation of the elevator based on the request signal; determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation, based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; maintaining the currently registered elevator control signal in response to determining that the current condition does not correspond to the exception condition; and in response to determining that the current situation corresponds to the exception situation, canceling the currently registered elevator control signal; the currently registered elevator control signals include a signal to close the elevator doors; The step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes a step of determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is a robot riding in the elevator and a state in which there is a robot waiting to ride in the elevator are sustained for more than a preset time.

6. A step of receiving a request signal from the robot; registering an elevator control signal for controlling an operation of the elevator based on the request signal; determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation, based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; maintaining the currently registered elevator control signal in response to determining that the current condition does not correspond to the exception condition; and in response to determining that the current situation corresponds to the exception situation, canceling the currently registered elevator control signal; The currently registered elevator control signal is a signal that keeps the elevator door open, The step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes a step of determining that the current situation corresponds to the exceptional situation in response to determining that no robots are disembarking from the elevator and that the number of robots in the elevator is equal to the number of robots desired to be boarded upon completion of a car call service.

7. A step of receiving a request signal from the robot; registering an elevator control signal for controlling an operation of the elevator based on the request signal; determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation, based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; maintaining the currently registered elevator control signal in response to determining that the current condition does not correspond to the exception condition; and in response to determining that the current situation corresponds to the exception situation, canceling the currently registered elevator control signal; The currently registered elevator control signal is a signal to close the elevator door, The step of determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes a step of determining that the current situation corresponds to the exceptional situation in response to a determination that there is a robot dismounting from the elevator and the number of robots in the elevator is greater than the number of robots desired to be boarded at the completion of a car call service.

8. a memory configured to store each instruction; In response to executing the command, registering an elevator control signal for controlling an operation of the elevator based on the request signal received from the robot; Determine whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; in response to determining that the current condition does not fall under the exception condition, maintaining the currently registered elevator control signal; a processor configured to release the currently registered elevator control signal in response to determining that the current condition corresponds to the exception condition; The currently registered elevator control signal is a signal for assigning a hall call to the elevator, The determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes determining that the current situation corresponds to the exceptional situation in response to determining that a robot waiting for the elevator to which the hall call is assigned is not at the hall.

9. In response to determining that the current situation corresponds to the exceptional situation, release the currently registered elevator control signal, and 10. The elevator control system of claim 8, further configured to register a new elevator control signal different from the currently registered elevator control signal.

10. A memory configured to store each instruction word; and In response to executing the command, registering an elevator control signal for controlling an operation of the elevator based on the request signal received from the robot; Determine whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; in response to determining that the current condition does not fall under the exception condition, maintaining the currently registered elevator control signal; a processor configured to release the currently registered elevator control signal in response to determining that the current condition corresponds to the exception condition; The currently registered elevator control signal is a signal that takes precedence over a passenger pressing a door close button of the elevator as a signal to keep the elevator door open, The determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is no robot on board the elevator and no robot waiting to board the elevator continues for more than a preset time.

11. A memory configured to store each instruction word; and In response to executing the command, registering an elevator control signal for controlling an operation of the elevator based on the request signal received from the robot; Determine whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; in response to determining that the current condition does not fall under the exception condition, maintaining the currently registered elevator control signal; a processor configured to release the currently registered elevator control signal in response to determining that the current condition corresponds to the exception condition; The currently registered elevator control signals include a signal to hold the elevator doors open and a car call; The determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is no robot on board the elevator, a state in which there is no robot waiting to board, and a state in which there is no passenger on the elevator continues for more than a preset time.

12. A memory configured to store each instruction word; and In response to executing the command, registering an elevator control signal for controlling an operation of the elevator based on the request signal received from the robot; Determine whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; in response to determining that the current condition does not fall under the exception condition, maintaining the currently registered elevator control signal; a processor configured to release the currently registered elevator control signal in response to determining that the current condition corresponds to the exception condition; the currently registered elevator control signals include a signal to close the elevator doors; The determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is a robot riding in the elevator and a state in which there is a robot waiting to board the elevator are sustained for more than a preset time.

13. A memory configured to store each instruction word; and In response to executing the command, registering an elevator control signal for controlling an operation of the elevator based on the request signal received from the robot; Determine whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; in response to determining that the current condition does not fall under the exception condition, maintaining the currently registered elevator control signal; a processor configured to release the currently registered elevator control signal in response to determining that the current condition corresponds to the exception condition; The currently registered elevator control signal is a signal that keeps the elevator door open, The elevator control system includes determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation, in response to determining that no robots are disembarking from the elevator and that the number of robots in the elevator is equal to the number of robots desired to be boarded upon completion of a car call service, and determining that the current situation corresponds to the exceptional situation.

14. A memory configured to store each instruction word; and In response to executing the command, registering an elevator control signal for controlling an operation of the elevator based on the request signal received from the robot; Determine whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with the current situation based on an image obtained through a camera disposed in the elevator, the position of the robot, and the environment of the landing; in response to determining that the current condition does not fall under the exception condition, maintaining the currently registered elevator control signal; a processor configured to release the currently registered elevator control signal in response to determining that the current condition corresponds to the exception condition; The currently registered elevator control signal is a signal to close the elevator door, The elevator control system includes determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation, in response to determining that there is a robot disembarking from the elevator and that the number of robots in the elevator is greater than the number of robots desired to be on board at the completion of a car call service, and determining that the current situation corresponds to the exceptional situation.

15. Elevator; a camera disposed within the elevator and configured to capture at least one image information of an interior image of the elevator and an image of a landing when the elevator doors are open; a landing sensor disposed at the landing and configured to capture image information of the landing; and a processor configured to generate a control signal to control operation of the elevator based on a request signal received from a robot; The processor, determining whether an exceptional situation occurs in which an operation of the elevator according to the control signal conflicts with a current situation based on at least one of the at least one image information acquired by the camera and the image information acquired by the hall sensor; In response to determining that the current condition does not correspond to the exception condition, maintaining the currently registered elevator control signal; release the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation; configured to control the elevator; The currently registered elevator control signal is a signal for assigning a hall call to the elevator, Determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes determining that the current situation corresponds to the exceptional situation in response to determining that a robot waiting for the elevator to which the hall call is assigned is not at the landing.

16. The elevator further includes a weight sensor for acquiring weight information of an object loaded on the elevator; 16. The elevator system of claim 15, wherein the processor is configured to determine an exception situation in which a current situation conflicts with an operation of the elevator according to the control signal, further based on the weight information.

17. An elevator; a camera disposed within the elevator and configured to capture at least one image information of an interior image of the elevator and an image of a landing when the elevator doors are open; a landing sensor disposed at the landing and configured to capture image information of the landing; and a processor configured to generate a control signal to control operation of the elevator based on a request signal received from a robot; The processor, determining whether an exceptional situation occurs in which an operation of the elevator according to the control signal conflicts with a current situation based on at least one of the at least one image information acquired by the camera and the image information acquired by the hall sensor; In response to determining that the current condition does not correspond to the exception condition, maintaining the currently registered elevator control signal; release the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation; configured to control the elevator; The currently registered elevator control signal is a signal that takes precedence over a passenger pressing a door close button of the elevator as a signal to keep the elevator door open, Determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is no robot on board the elevator and no robot waiting to board the elevator continues for more than a preset time.

18. An elevator; a camera disposed within the elevator and configured to capture at least one image information of an interior image of the elevator and an image of a landing when the elevator doors are open; a landing sensor disposed at the landing and configured to capture image information of the landing; and a processor configured to generate a control signal to control operation of the elevator based on a request signal received from a robot; The processor, determining whether an exceptional situation occurs in which an operation of the elevator according to the control signal conflicts with a current situation based on at least one of the at least one image information acquired by the camera and the image information acquired by the hall sensor; In response to determining that the current condition does not correspond to the exception condition, maintaining the currently registered elevator control signal; release the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation; configured to control the elevator; The currently registered elevator control signals include a signal to hold the elevator doors open and a car call; Determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is no robot on board the elevator, a state in which there is no robot waiting to board, and a state in which there is no passenger on the elevator continues for more than a preset time.

19. An elevator; a camera disposed within the elevator and configured to capture at least one image information of an interior image of the elevator and an image of a landing when the elevator doors are open; a landing sensor disposed at the landing and configured to capture image information of the landing; and a processor configured to generate a control signal to control operation of the elevator based on a request signal received from a robot; The processor, determining whether an exceptional situation occurs in which an operation of the elevator according to the control signal conflicts with a current situation based on at least one of the at least one image information acquired by the camera and the image information acquired by the hall sensor; In response to determining that the current condition does not correspond to the exception condition, maintaining the currently registered elevator control signal; release the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation; configured to control the elevator; the currently registered elevator control signals include a signal to close the elevator doors; Determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes determining that the current situation corresponds to the exceptional situation in response to determining that a state in which there is a robot riding in the elevator and a state in which there is a robot waiting to board the elevator are sustained for more than a preset time.

20. An elevator; a camera disposed within the elevator and configured to capture at least one image information of an interior image of the elevator and an image of a landing when the elevator doors are open; a landing sensor disposed at the landing and configured to capture image information of the landing; and a processor configured to generate a control signal to control operation of the elevator based on a request signal received from a robot; The processor, determining whether an exceptional situation occurs in which an operation of the elevator according to the control signal conflicts with a current situation based on at least one of the at least one image information acquired by the camera and the image information acquired by the hall sensor; In response to determining that the current condition does not correspond to the exception condition, maintaining the currently registered elevator control signal; release the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation; configured to control the elevator; The currently registered elevator control signal is a signal that keeps the elevator door open, Determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation includes determining that the current situation corresponds to the exceptional situation in response to determining that no robots are disembarking from the elevator and that the number of robots in the elevator is equal to the number of robots desired to be boarded upon completion of a car call service.

21. An elevator; a camera disposed within the elevator and configured to capture at least one image information of an interior image of the elevator and an image of a landing when the elevator doors are open; a landing sensor disposed at the landing and configured to capture image information of the landing; and a processor configured to generate a control signal to control operation of the elevator based on a request signal received from a robot; The processor, determining whether an exceptional situation occurs in which an operation of the elevator according to the control signal conflicts with a current situation based on at least one of the at least one image information acquired by the camera and the image information acquired by the hall sensor; In response to determining that the current condition does not correspond to the exception condition, maintaining the currently registered elevator control signal; release the currently registered elevator control signal in response to determining that the current situation corresponds to the exceptional situation; configured to control the elevator; The currently registered elevator control signal is a signal to close the elevator door, The elevator system includes determining whether an exceptional situation occurs in which the operation of the elevator according to the elevator control signal conflicts with a current situation, in response to determining that there is a robot disembarking from the elevator and that the number of robots in the elevator is greater than the number of robots desired to board upon completion of a car call service, and determining that the current situation corresponds to the exceptional situation.

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