JP5473477B2 - Elevator device for automatic guided vehicle and abnormality detection method for the elevator device - Google Patents

Description

  The present invention relates to an automated guided vehicle-compatible elevator apparatus and an abnormality detection method for the elevator apparatus.

  2. Description of the Related Art In recent years, a number of systems that use various automated packages (AGV: Automatic Guided Vehicles) (hereinafter, referred to as “AGV” as appropriate) that carry out autonomous traveling have been used. This system may be used across multiple floors using an elevator device. When the automated guided vehicle uses an elevator device, for example, the movement of the automated guided vehicle, the hall call, and the car call are automatically registered by using a radio or a photoelectric detection device.

  For example, in the automatic guided vehicle system disclosed in Patent Document 1, arrival of a fixed position in the automatic guided vehicle or in the car is detected using a photoelectric switch, and movement between the fixed positions is started using radio. , Termination control, and call control.

  By adopting such an automated guided vehicle system, it is possible to automatically realize movement using the automated guided vehicle at a low cost without remodeling the elevator.

Japanese Patent Laid-Open No. 9-230938

  However, the automatic guided vehicle system disclosed in Patent Document 1 does not consider the following points.

  That is, in order for an automated guided vehicle to move between a plurality of floors using an elevator, it is required that the automated guided vehicle normally enters the car and exits normally at the destination floor. In the automatic guided vehicle system disclosed in Patent Document 1 described above, acquisition of position information using a photoelectric switch is described, but this means that the automatic loading / unloading of the automatic guided vehicle to / from the car is only performed. It is assumed that the control when an abnormality occurs is not mentioned.

  Further, depending on the scale of the automatic guided vehicle system, control of a plurality of automatic guided vehicles is performed, but this point is not disclosed in the above-mentioned Patent Document 1.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to perform an appropriate abnormality detection operation when an abnormality has occurred with respect to loading / unloading to / from a car for an automated guided vehicle using an elevator apparatus. By carrying out the above, it is intended to improve the protection monitoring function of the automatic guided vehicle, and to provide an automatic guided vehicle-compatible elevator apparatus that can also control a plurality of automatic guided vehicles and an abnormality detection method for the elevator apparatus.

A first feature according to an embodiment of the present invention is that the automatic guided vehicle includes automatic guided vehicle control means for controlling operation of the automatic guided vehicle and elevator control means for controlling a car on which the automatic guided vehicle rides. In the corresponding elevator apparatus , the elevator control means includes a signal indicating completion of entry of the automatic guided vehicle into the car and the automatic guided vehicle when the automatic guided vehicle gets into the car in the automatic operation mode for the automatic guided vehicle. When a signal indicating a car call is not received within a predetermined time, or when the automatic guided vehicle gets out of the car, a signal indicating completion of the unloading of the automatic guided vehicle from the car is predetermined. If it is determined that an abnormality has occurred in each of the automated guided vehicles, and if it has been determined that an abnormality has occurred with respect to the loading / unloading of the automated guided vehicle, If the car can be closed and the car can be moved, the transition from the automatic guided vehicle operation mode to the normal operation mode is selected, and the car cannot be moved. In order to maintain the state in which an abnormality is detected, all signal reception is rejected and an abnormal signal is output and notified.

According to a second aspect of the present invention, in the abnormality detection method for an automated guided vehicle-compatible elevator apparatus, the elevator control means receives an elevator use request signal from the automated guided vehicle, and the automated guided vehicle If you receive a hall call from multiple floors, receive a hall call and forbid registration registration for general hall calls, and receive hall calls from multiple floors of multiple automated guided vehicles. A step of determining the order of answering calls, a step of shifting to an automatic guided vehicle operation mode after responding to all existing general landing calls, and a response of landing calls from automatic guided vehicles Moving the car to the destination floor, receiving a signal indicating that the automatic guided vehicle has entered the car, and further receiving a destination floor call from the automatic guided vehicle; Receipt completion signal or if the reception of the destination floor call is not received by the elevator controller a goods issue completion signal indicating that the left from the elevator car may not performed within a predetermined time, or an automated guided vehicle, AGV A step of determining that an abnormality has occurred in the warehousing of the car, a step of determining whether or not the car can be moved when it is determined that an abnormality has occurred, and a determination that the car can be moved If it is determined that the step of shifting from the automatic guided vehicle operation mode to the normal operation mode and the movement of the car is determined to be impossible, in order to maintain the state in which the abnormality is detected, The elevator control means includes a step of rejecting any signal reception and outputting an abnormal signal for notification .

  According to the present invention, the automatic monitoring function of the automatic guided vehicle is improved by performing an appropriate abnormality detection operation in the case where an abnormal condition occurs regarding the entry / exit of the car with respect to the automated guided vehicle using the elevator apparatus. In addition, it is possible to provide an automated guided vehicle-compatible elevator apparatus that can also control a plurality of automatic guided vehicles and an abnormality detection method for the elevator apparatus.

1 is an overall view showing an overall configuration of an elevator apparatus for automatic guided vehicle according to an embodiment of the present invention. It is a block diagram which shows the internal structure of the elevator control means in embodiment of this invention. It is a flowchart which shows the flow of the abnormality detection method of the automatic guided vehicle corresponding | compatible elevator apparatus in embodiment of this invention. It is a flowchart which shows the flow of the abnormality detection method of the automatic guided vehicle corresponding | compatible elevator apparatus in embodiment of this invention. It is a flowchart which shows the flow of the abnormality detection method of the automatic guided vehicle corresponding | compatible elevator apparatus in embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an overall view showing an overall configuration of an elevator apparatus E for automatic guided vehicle. The elevator apparatus E includes a passenger car 1 on which a passenger or an automated guided vehicle (to be described later) rides, and a rope R having one end connected to the passenger car 1 and a counterweight connected to the other end (not shown). Although not shown in the figure, the elements that normally constitute the elevator apparatus E such as a hoisting machine and a speed governor for raising and lowering the car 1 in the hoistway H with the rope R wound around are naturally provided. ing.

  In addition, as shown in FIG. 1, although the elevator apparatus E in the embodiment of the present invention is installed in a four-story building, the number of floors of the building to be installed does not matter. Moreover, although the number of elevator apparatuses E shown is one, a plurality of elevator apparatuses E may be installed.

  An in-car call registration button 2 is provided in the car 1, and is used by the passengers who enter the car 1 to register the target floor.

  The operation control of the car 1 is performed by the elevator control means 3. In FIG. 1, it is shown beside the hoistway H, but may be provided at any location of the elevator apparatus E. Further, the elevator control means 3 in FIG. 1 shows an arrow indicated by a broken line heading toward the elevator control means 3 and a broken arrow heading outward from the elevator control means 3. This shows the flow of various signals sent to the elevator control means 3 by the former, and the latter shows the flow of control signals sent from the elevator control means 3 to each element of the elevator apparatus E.

  FIG. 2 is a block diagram showing the internal configuration of the elevator control means 3. The elevator control means 3 includes a receiving means 3a, a judging means 3b, a time measuring means 3c, and a transmitting means 3d. Note that the arrow toward the reception unit 3a and the arrow toward the outside of the elevator control unit 3 from the transmission unit 3d shown in FIG. 2 correspond to the former and the latter broken line arrows of the elevator control unit 3 in FIG.

  The determination means 3b selects necessary determination and control contents based on the signals transmitted from each element of the elevator apparatus E, and transmits them as control signals to each element of the elevator apparatus E via the transmission means 3d. The time measuring means 3c is a means for measuring the time required for controlling each element. Note that a signal from an AGV control unit, which will be described later, is also transmitted to the elevator control unit 3, and the determination unit 3b also takes this transmitted signal into consideration when making a determination.

  The automatic guided vehicle 4 automatically moves in the building without bothering people. Here, the phrase “automatic guided vehicle” is used, but it includes not only those that transport objects, but also those that do not aim to transport anything, such as guarding buildings. Although only one automatic guided vehicle 4 that moves in the building is illustrated in FIG. 1, the number may be one or more. Moreover, the automatic guided vehicle 4 moves across a plurality of floors using the elevator apparatus E. Although the movement over the plurality of floors is performed on the car 1, it is basically controlled so as not to get on the car 1 together with the passengers.

  The automatic guided vehicle 4 is controlled for operation by automatic guided vehicle control means 5 (in the following description and drawings, this "automatic guided vehicle control means 5" is represented as "AGV control means 5"). The AGV control means 5 is connected to the elevator control means 3 and, for example, a landing call or car call signal of the automatic guided vehicle 4 is transmitted from the AGV control means 5 to the elevator control means 3. Further, the AGV control means 5 in FIG. 1 shows an arrow indicated by a broken line toward the AGV control means 5 and a broken arrow extending outward from the AGV control means 5. This shows the flow of various signals from the automatic guided vehicle 4 sent to the AGV control means 5 by the former, and the latter shows the flow of control signals sent from the AGV control means 5 to the automatic guided vehicle 4. It is.

  A hall call button 6 is provided on each floor. The hall call button 6 is provided on each floor (the hall call buttons 6a to 6d from the first floor to the fourth floor), and passengers who use the elevator apparatus E press the hall call button 6 on any floor. Push to call car 1. The hall call button 6 is a button for a passenger to call the car 1, and the automated guided vehicle 4 transmits a hall call signal to the elevator control means 3 via the AGV control means 5, as will be described later. To do.

  Although not shown in FIG. 1, a notification means that indicates in which operation mode the elevator apparatus E is currently operated may be further provided at the landing of each floor.

  In the embodiment of the present invention, the elevator apparatus E includes a normal operation mode that is a mode when a passenger gets on the car 1 and an AGV dedicated operation mode that is a mode when the automatic guided vehicle 4 gets on the car 1. Two types of operation modes are defined. These operation modes are switched by the elevator control means 3, and when operating in one mode, the other mode cannot be selected. This is for the purpose of ensuring safety by preventing passengers and automatic guided vehicles 4 from being put together on the same car 1, or for increasing the operating efficiency of the elevator apparatus E.

  Next, the flow of operation control including the abnormality detection method for the elevator apparatus E according to the embodiment of the present invention will be described with reference to FIGS. The function of each means in the elevator control means 3 will also be described.

  First, as a premise, the operation of the elevator apparatus E is controlled in the normal operation mode. In this state, only passengers can get on and off the car 1. On the other hand, the automatic guided vehicle 4 cannot basically ride on the car 1 on which a person is riding.

  In this state, the determination means 3b of the elevator apparatus E determines whether or not a request signal (AGV use request signal) indicating that the automatic guided vehicle 4 wants to use the elevator apparatus E from the AGV control means 5 to the elevator control means 3 is issued. (ST1). If it can be determined that the AGV use request signal is not output from the AGV control means 5 to the elevator control means 3 (NO in ST1), the determination means 3b continues to control the operation of the elevator apparatus E in the normal operation mode. Issue a command.

  As for the AGV use request signal, for example, when the automatic guided vehicle 4 arrives at a standby place provided on each floor, or the switch provided on the track on which the automatic guided vehicle 4 moves is turned ON. To be issued. However, the transmission of the AGV use request signal can be freely set according to the place where the automatic guided vehicle 4 is used. Alternatively, if the purpose of the automatic guided vehicle 4 is to perform security, for example, an AGV use request signal is transmitted at a predetermined time, for example, at midnight when a person does not use the elevator device E. You may do it.

  After the AGV use request signal is issued, it is further determined whether or not a hall call from the automatic guided vehicle 4 has been received (ST3). The AGV use request signal is a signal that the automatic guided vehicle 4 wants to occupy the use of the elevator apparatus E. However, the floor call further depresses and the automatic guided vehicle 4 that has issued the AGV use request signal exists on any floor. It is a signal to clarify. In particular, in the state where a plurality of automatic guided vehicles 4 are controlled to operate, it is possible that these automatic guided vehicles 4 each transmit a landing call. This judgment is important.

  Therefore, it is possible to understand from which floor the automatic guided vehicle 4 is scheduled to enter the car 1 by issuing a landing call from the automatic guided vehicle 4. The hall call may further include a signal indicating in which direction the automatic guided vehicle 4 that has issued the hall call wants to go. When only one automated guided vehicle 4 is controlled, the AGV use request signal and the hall call can be combined into one signal.

  If the AGV use request signal has been received but there is no hall call from the automatic guided vehicle 4 (AGV control means 5) (NO in ST3), a predetermined time predetermined by the time measuring means 3c is set. Is measured (ST4). This is because, for example, the location where the AGV usage request signal is transmitted and the location where the landing call is made are distant from each other, and the automatic guided vehicle 4 which has issued the AGV usage request signal still reaches the location where the landing call is made. There may be cases where this is not the case. When a predetermined time has passed without a landing call from the automatic guided vehicle 4 (YES in ST4), the elevator apparatus E is directly controlled in the normal operation mode (ST2).

  On the other hand, when the hall call from the automatic guided vehicle 4 is received (YES in ST3), the determination unit 3b prohibits the registration reception of the general hall call for the passenger to get on the car 1 (ST5). As described above, this is a measure for preventing the passenger and the automatic guided vehicle 4 from being carried together on the car 1. However, although reception of registration of general hall calls is prohibited, there are cases where passengers are on the car 1, so that the elevator apparatus E is operated and controlled in the normal operation mode until all passengers get off.

  Judgment means 3b prioritizes the plurality of hall calls, particularly when hall calls of automatic guided vehicle 4 are received from a plurality of floors (ST6). Prioritization of which floor call is given priority depends on the building where the automatic guided vehicle 4 and the elevator apparatus E are installed or the operation control of the automatic guided vehicle 4. Therefore, the priority order can be arbitrarily set according to each situation.

  For landing calls that are prioritized in landing calls that are prioritized, even if the landing calls are registered first, the landing calls that are ranked higher are the landing calls that have been registered earlier. However, the response will be slow. Or it is good also as taking the response of ignoring without responding about the hall call below a certain rank. In addition, when only one automatic guided vehicle 4 is used, prioritization may not be performed.

  The elevator control means 3 lowers the passengers in the car 1 at each destination floor or accepts all the registered general hall calls received until the registration of the above general hall calls is prohibited. Correspond. The determination means 3b determines whether or not it has responded to all of the general hall calls at any time (ST7). If it has responded (YES in ST7), it switches the normal operation mode and is dedicated to the automatic guided vehicle (AGV). The operation mode is shifted to (ST8). In this mode, the automatic guided vehicle 4 is moved via the elevator apparatus E, and basically, the passenger cannot get on the car 1. Therefore, immediately after shifting to the AGV exclusive operation mode, there are no passengers in the car 1 and the vehicle is unattended.

  When the operation mode is shifted to the AGV exclusive operation mode, the judging means 3b responds to the hall call positioned at the top when the hall call from the automatic guided vehicle 4 is ranked (ST9). When the car 1 arrives at the destination floor, it opens the elevator door (ST10, ST11). When the elevator door is opened, the determining means 3b instructs the time measuring means 3c to start time measurement. The time measurement here is performed in order for the determination means 3b to determine whether or not a predetermined time has elapsed. The predetermined time is, for example, the time required until the automated guided vehicle 4 normally enters the car 1 and a car call indicating the destination floor is made.

  Before the predetermined time has elapsed (YES in ST12), the determination means 3b determines whether or not the automatic guided vehicle 4 has successfully entered the car 1 and has received a warehousing completion signal via the AGV control means 5 (ST13). ), And when the automated guided vehicle 4 has entered the car 1 normally, it is determined whether a car call has been made (ST14). By performing both of these within a predetermined time, the automatic guided vehicle 4 has successfully entered the car 1 and designated the destination floor.

  The determination as to whether or not the automatic guided vehicle 4 has normally entered the car 1 is made based on whether or not the automatic guided vehicle 4 is stopped at a predetermined position in the passenger car 1. The detection of whether or not the vehicle is stopped at a predetermined position may be performed by any method such as using a photoelectric switch.

  On the other hand, if the predetermined time has elapsed and the above-described receipt completion signal or car call has not been received, it can be determined that an abnormality has occurred. For example, the automatic guided vehicle 4 could not normally enter the car 1, the automatic guided vehicle 4 has not stopped at a predetermined position in the car 1, or the automatic guided vehicle 4 has entered the car 1. This is an abnormality such that the car 4 was only called for some sort of failure. Therefore, if the receipt completion signal and the car call are not received within a predetermined time (YES in ST12), it is determined that an entry abnormality has been detected (ST15).

  When an abnormality in warehousing is detected, the date and time when the abnormality was detected is recorded (ST16). This record may be stored in a storage means (not shown) in the elevator control means 3, or may be stored in, for example, a storage means provided in the AGV control means 5, a server provided separately for collecting abnormal information, or the like. good. Here, the reason for recording the date and time of abnormality detection is that, as will be described later, once the abnormality is detected and the normal operation mode is restored, the fact that the abnormality has been detected becomes unknown. . Therefore, recording is performed in order to leave the fact that an abnormality has been detected.

  At this stage, an abnormality signal is once issued (ST17) to notify that some abnormality has occurred in the elevator apparatus E. For example, the notification may be performed with respect to the management center of the elevator apparatus E, or may be performed with respect to a passenger who uses the elevator apparatus E through the notification means provided on each floor as described above.

  Regarding the transition to the operation after the abnormality is detected, the same action is taken when an unloading abnormality of the automatic guided vehicle 4 from the car 1 occurs, and will be described later.

  When the automated guided vehicle 4 normally enters the car 1 and the car is called (YES in ST14), the elevator door is closed (see the flowchart in FIG. 4 and ST18). The car 1 responds to the car call of the automatic guided vehicle 4 and moves to the destination floor, and the elevator door is opened after arrival (ST19 to ST21).

  When the elevator door is opened, the automatic guided vehicle 4 in the car 1 gets off to the landing on the destination floor. Therefore, the determining unit 3b instructs the time measuring unit 3c to measure a predetermined time. The time measurement here is performed in order for the determination means 3b to determine whether or not a predetermined time has elapsed. The predetermined time is, for example, that the automatic guided vehicle 4 is normal from the car 1 This is the time required to leave.

  Before the predetermined time has elapsed (YES in ST22), the determination means 3b determines whether or not the automatic guided vehicle 4 has normally left the car 1 and has received a discharge completion signal via the AGV control means 5 ( ST23) is determined. When the delivery completion signal is turned ON and the determination means 3b receives this signal at a predetermined time, it can be determined that the automatic guided vehicle 4 has successfully exited from the car 1.

  When the automated guided vehicle 4 is registered on the landing floor and is waiting at the landing on the floor of the destination floor, first the unloading of the automated guided vehicle 4 that is in the car 1 is issued. After the control is performed and the delivery is confirmed, the entrance control to the car 1 of the automatic guided vehicle 4 that has been waiting is performed.

  If the delivery completion signal cannot be received within a predetermined time (NO in ST23, YES in ST22), it can be determined that some abnormality has occurred when the automated guided vehicle 4 leaves the car 1. Therefore, a shipping abnormality is detected (ST24), the date and time when this abnormality is detected is recorded, and an abnormality signal is transmitted to the management center or the like (ST25, ST26). This flow is the same as the case where the aforementioned storage abnormality is detected. Therefore, the transition to the operation after the subsequent abnormality detection will be described later together with the case where the automated guided vehicle 4 enters the car 1.

  After confirming that the automatic guided vehicle 4 has normally left the car 1 and the output completion signal is turned on (YES in ST23), the elevator door is closed (ST27). Judgment means 3b confirms whether there is a use request signal from other automatic guided vehicle 4 (ST28).

  If there is a use request signal from another automatic guided vehicle 4 (NO in ST28), the process returns to step 3 described above, and the automatic guided vehicle 4 is moved to a predetermined floor. If there is no use request signal from the other automatic guided vehicle 4 (YES in ST28), the automatic guided vehicle (AGV) dedicated operation mode is terminated and the operation mode is shifted to the normal operation mode (ST29).

  Next, transition to operation selection after an abnormality is detected will be described. FIG. 5 is a flowchart showing the flow of operations. When abnormality (entrance abnormality) when the above-described automatic guided vehicle 4 gets into the car 1 is detected (ST15 to ST17), or abnormality (exception abnormality) when the automatic guided vehicle 4 gets off the passenger car 1 If it is detected (ST24 to ST26), the determination means 3b proceeds to selection of an abnormality detection operation (ST41).

  This abnormality detection operation is an operation that is adopted by the elevator control means 3 when any abnormality occurs in the automatic guided vehicle 4 in relation to the car 1. In the embodiment of the present invention, the determination is made based on whether or not the car 1 can be moved (lifted) (ST42). If the determination means 3b determines that the elevator door can be closed and the car 1 can be moved (YES in ST42), the automatic guided vehicle (AGV) dedicated operation mode is terminated and the normal operation is completed. The operation mode is shifted to (ST43). At the same time, the transmission of the abnormal signal is stopped and the notification is terminated (ST44).

  The case where it can be determined that the car 1 can be moved is, for example, a case where the elevator door can be closed although the stop position of the automatic guided vehicle 4 in the car 1 is not normal. In this case, in consideration of the efficiency of operation of the elevator apparatus E, the automatic guided vehicle 4 remains in the car 1, but shifts to the normal operation mode so that passengers can be put on as much as possible. To do.

  In this case, the passenger and the automatic guided vehicle 4 get into the car 1 at the same time, but the automatic guided vehicle 4 is in the car 1 even though the car 1 can be moved (lifted). The reason why the elevator apparatus E is stopped only by being present is that it is considered useless even in terms of operation efficiency. In this sense, this case corresponds to an exception that passengers and automatic guided vehicles 4 are not carried in the car 1. However, it is needless to say that the automatic guided vehicle 4 needs to be withdrawn from the car 1 as soon as possible.

  On the other hand, when determining means 3b determines that movement (lifting) of car 1 is impossible (NO in ST42), it instructs to keep the state in which the abnormality is detected (ST45). ). This state is considered to be a state in which, for example, a part of the automated guided vehicle 4 remains in the car 1 and the other part is out of the car 1. In such a case, the car 1 cannot be forcibly moved (lifted / lowered) from the viewpoint of safety. Therefore, the determination unit 3b maintains this state, and the unmanned conveyance that is also a target for the AGV control unit 5 An instruction is given to prohibit the movement of the car 4.

  At the same time, the elevator control means 3 refuses any reception of signals from the elements constituting the elevator apparatus E or the AGV control means 5 (ST46). By doing in this way, it can prevent that the car 1 moves, and safety | security can be ensured.

  After that, an abnormal signal is output again and notified to the management center or the like (ST47). In addition, since the notification here notifies a serious abnormality in the elevator apparatus E, a notification method different from the above-described notification (ST17 or ST26) is adopted. For example, the elevator apparatus E It is possible to adopt a mode capable of more clearly informing the manager of the abnormality.

  As described above, with respect to the automated guided vehicle using the elevator apparatus, by performing an appropriate abnormality detection operation when an abnormality occurs in relation to entering and leaving the car, the protection monitoring function of the automated guided vehicle is improved, and a plurality of It is possible to provide an automated guided vehicle-compatible elevator apparatus that can also control the automatic guided vehicle and an abnormality detection method for the elevator apparatus.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine the component covering different embodiment suitably.

DESCRIPTION OF SYMBOLS 1 Passenger car 2 Car call registration button 3 Elevator control means 4 Automatic guided vehicle 5 AGV control means 6 Landing call button E Elevator device H Hoistway R Rope

Claims (3)

Automatic guided vehicle control means for controlling the operation of the automatic guided vehicle;
An elevator control means for controlling a car on which the automatic guided vehicle rides, and an elevator device for automatic guided vehicles comprising :
The elevator control means, in the automatic guided vehicle operation mode,
When the automatic guided vehicle gets into the car, a signal indicating completion of entry of the automatic guided vehicle into the car and a signal indicating a car call of the automatic guided vehicle are not received within a predetermined time. Or when the unmanned transport vehicle gets out of the car, if it does not receive a signal indicating completion of the unloading of the unmanned transport vehicle from the car within a predetermined time, While judging that an abnormality has occurred,
If it is determined that an abnormality has occurred regarding entry / exit of the automatic guided vehicle into / from the car, the automatic car can be used only if the car can be closed and the car can be moved. If switching from the operation mode to the normal operation mode is selected and the car is in a state where it cannot be moved, in order to maintain the state in which an abnormality has been detected, all signal reception is rejected and an abnormality signal is output. Output and inform,
An elevator device for automatic guided vehicles characterized by the above. The elevator control means, when receiving a hall call from a plurality of floors of the plurality of automatic guided vehicles, performs ranking for determining an order of responding to the plurality of hall calls. The elevator apparatus for automatic guided vehicles according to Item 1. The elevator control means receives an elevator use request signal from the automatic guided vehicle;
  Receiving a hall call from the automated guided vehicle;
  Receiving the hall call and prohibiting registration of the general hall call;
  When receiving the hall calls from a plurality of floors of the plurality of automated guided vehicles, performing a ranking for determining an order of responding to the plurality of hall calls;
  After responding to all the existing general hall calls, the step of shifting to the automatic guided vehicle operation mode,
  Moving the car to the destination floor in response to a hall call from the automated guided vehicle;
  Receiving a warehousing completion signal of the automatic guided vehicle into the car, and further receiving a destination floor call from the automatic guided vehicle;
  When the receipt control signal or the destination floor call is not received within a predetermined time, or when the elevator control means does not receive a delivery completion signal indicating that the automated guided vehicle has been delivered from the car Determining that an abnormality has occurred in the entry of the automated guided vehicle into the car;
  When it is determined that an abnormality has occurred, the step of determining whether or not the car can be moved; and
  If it is determined that the car can move, a step of shifting from the automatic guided vehicle operation mode to the normal operation mode;
  When it is determined that the movement of the car is impossible, the elevator control means rejects any signal reception and outputs an abnormality signal for notification in order to maintain the state in which the abnormality is detected. When,
  An abnormality detection method for an elevator apparatus for an automated guided vehicle, comprising:

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