JP5761569B2 - Goods transport equipment - Google Patents

Description

  The present invention relates to an article conveying apparatus that conveys an article, a control unit that controls the operation of the article conveying apparatus based on conveyance data that designates a conveyance destination and a conveyance source, and an abnormality detection that detects an abnormality of the article conveying apparatus. Means for controlling the operation of the article conveying device based on the conveyance data, and when an operation stop command is instructed by human operation, the article conveyance based on the conveyance data is provided. The apparatus is configured to shift to a normal stop state in which the apparatus is not controlled, and in the operation state, when an abnormality is detected by the abnormality detection unit, the operation of the article transporting apparatus is forcibly stopped. The present invention relates to an article conveying facility configured to control the operation of the article conveying apparatus so as to be in an abnormal state.

For example, the above-mentioned article transporting facility can transport a large number of various articles from a transport source designated by transport data, such as an automatic warehouse facility having a plurality of article transporting devices such as a stacker crane, a self-propelled transport cart, and a conveyor. Is automatically conveyed.
When a conveyance trouble occurs in the article conveyance facility, it is desired to detect it at an early stage and take a prompt and appropriate action. Therefore, in such an article conveyance facility, an abnormality detection means for detecting an abnormality in the article conveyance facility is provided.
When an abnormality of the article transport device is detected by the abnormality detection means in the operating state, the operation of the article transport device is forcibly stopped. What is detected by the abnormality detection means includes not only an abnormality in the article transport apparatus main body but also those arranged around the place where the article transport apparatus is installed. For example, stacker cranes such as abnormalities in lifting / lowering drive motors and travel drive motors in stacker cranes as article transporting devices, abnormalities in lifting distance meters and traveling distance meters, and load displacement of articles to be transported transferred by transfer devices In addition to the abnormality in the main body, there is an abnormality in which the safety door that opens and closes the worker doorway formed in the safety fence that partitions the inner area and the outer area of the conveying operation by the article conveying device is opened.
As a conventional example of such an article transport facility, an abnormality history recording unit that records the time when an abnormality is detected by the abnormality detection unit and the type of the detected abnormality as history information, and the history information is displayed on the display unit. Some display control means are provided (see, for example, Patent Document 1 (paragraphs “0012” and “0022” and FIG. 9)).
Conventionally, from the history information recorded in the abnormality history recording means, the elapsed time from when the abnormality is detected automatically or manually until it enters the operating state is defined as the time when the article transport facility is stopped due to the abnormality. The calculation and the evaluation of the operation results of the article transport facility are performed.

JP-A-4-243704

In the case of a conventional article transport facility, when the abnormality detection means detects an abnormality of the article transport apparatus, the abnormality history recording means records the history information. Therefore, even if an abnormal state due to a failure of the article transport device has not occurred, if the abnormality detection means has detected an abnormality of the article transport device, an abnormality history will be recorded in the history information, and the article transport There is a problem that the time during which the equipment is stopped due to an abnormality cannot be calculated correctly.
That is, for example, when a single stacker crane is described as an example of the article transport device, the safety door abnormality is caused by opening the safety door installed at the end of the travel path for periodic maintenance work of the stacker crane. Maintenance work, such as when an operator enters the travel path of a stacker crane during maintenance work, and the distance measuring light of the travel distance meter is blocked by the worker and an abnormality in the travel distance meter is detected. Various phenomena that occur along with this are detected as abnormalities by the abnormality detecting means.
As described above, even if an abnormal state due to the failure of the article transporting device does not occur, the abnormality history is recorded in the history information, and as a result, various phenomena caused by the maintenance work occur. Even the time is counted as the time when the article transport facility is stopped due to an abnormality. Therefore, in the conventional article transport equipment, the time calculated from the history information recorded in the abnormality history recording means did not properly indicate the time of the abnormal state due to the failure of the article transport apparatus. There was a problem that the state time could not be properly grasped.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an article conveyance facility capable of appropriately grasping the time of an abnormal state.

In order to achieve this object, the first characteristic configuration of the article conveying facility according to the present invention is:
An article conveying device for conveying an article;
Control means for controlling the operation of the article conveying device based on conveyance data designating a conveyance destination and a conveyance source;
An abnormality detecting means for detecting an abnormality of the article conveying apparatus is provided;
In the operation state in which the control means controls the operation of the article conveying device based on the conveyance data, if an operation stop command is commanded by human operation, the article conveying device is not controlled based on the conveyance data. It is configured to shift to a normal stop state, and in the operation state, when an abnormality is detected by the abnormality detection means, the operation of the article conveying device is forcibly stopped to be in an abnormal state. In an article conveying facility configured to control the operation of the article conveying apparatus,
When the abnormality detection unit detects an abnormality of the article conveyance device when the control unit is in the operation state, the abnormality detection unit detects an abnormality of the article conveyance device, and then the article conveyance is performed. An abnormal time management means is provided for measuring the elapsed time from when the operation command for restarting the operation of the apparatus is commanded by human operation until the operation state is reached and recording it as a failure time,
When the abnormality detection unit detects an abnormality in the article transporting device after the control unit is switched from the operation state to the normal stop state, the abnormality detection unit detects the abnormality time management unit. Even if an operation command for resuming the operation of the article transporting apparatus after the abnormality of the article transporting apparatus is detected is commanded by an artificial operation to be in the operating state, the abnormality detecting means detects an abnormality of the article transporting apparatus. The elapsed time from the detection to the operation state is configured not to be recorded as the failure time ,
When the abnormality detecting unit detects an abnormality of the article transporting device in the abnormality detecting unit after the control unit is switched from the operating state to the normal stop state, the control unit It is configured to count the elapsed time from when the operation command to resume the operation of the article conveying device after being switched to the stop state is commanded by human operation and to enter the operation state, and record it as the maintenance time . It is in.

According to this characteristic configuration, when an abnormality is detected by the article detection means in the driving state, the abnormality time management means restarts the operation of the article conveyance apparatus after the abnormality detection means detects an abnormality of the article conveyance apparatus. The elapsed time from when the operation command to be performed is commanded by human operation to the operation state is counted and recorded as the failure time. That is, when a trouble occurs in the article conveying apparatus in the driving state and an abnormality is detected, the time from when the abnormality is detected until the driving state is entered again is recorded as a failure time.
On the other hand, when an abnormality in the article transport device is detected by the abnormality detection means after the operation stop command is instructed by human operation and the control means is switched from the operation state to the normal stop state, for example, This is an abnormal state caused by the operation of an operator who performs periodic maintenance work, and does not mean that an abnormality has occurred in the article transport apparatus. Therefore, if an abnormality is detected by the abnormality detection means after the control means has been switched from the operating state to the normal stop state, it is determined that an abnormality such as a failure has not occurred in the article transport device, and the abnormal time The management means does not record the elapsed time from when the abnormality detection means detects an abnormality of the article transporting apparatus until it enters the operating state as a failure time. By doing this, for example, the abnormal time management means can detect the time when the abnormality detection means detects various phenomena that have occurred with the periodic maintenance work of the article conveying apparatus as abnormal. It will not be counted as the time recorded as the failure time.
As described above, according to the present feature configuration, even if the article transport device has no abnormality such as a failure, the abnormal state time at that time may not be included even if the abnormal state may return to the operation state. Thus, the time that the abnormal time management means records as the failure time is the time when the abnormality has occurred due to the occurrence of an abnormality such as a failure in the article conveying apparatus.
Therefore, it came to provide the article conveyance equipment which can grasp | ascertain the time of an abnormal condition appropriately.

  When an abnormality in the article conveying apparatus is detected by the abnormality detecting means after the operation stop command is instructed by human operation and the control means is switched from the operating state to the normal stopping state, for example, the periodicity of the article conveying apparatus is detected. This is an abnormal state caused by the operation of the worker who performs the maintenance work, and is not an abnormality of the article transport apparatus, but an abnormal state which occurs with the operation of the worker who performs the maintenance work. Therefore, in this characteristic configuration, the elapsed time from when the control means is switched to the normal stop state until the operation command for restarting the operation of the article transport device is instructed by the manual operation and becomes the operating state is counted as the maintenance time. Yes. Thereby, it is possible to measure the time of maintenance work performed with the article conveying apparatus in a normal stop state.

The second characteristic configuration of the article conveying facility according to the present invention is configured such that the abnormality detecting unit is capable of detecting a plurality of types of abnormalities in the article conveying apparatus,
Wherein said abnormality time control means, after the first abnormality is detected by the control unit of the article transport device by said abnormality detection means is changed to the abnormal state from the operating state, detected by the driving state When an abnormality of a type different from the first abnormality is detected, the article is detected after the abnormality detection means detects the first abnormality in the operation state immediately before the abnormality state based on the first abnormality is reached . It is configured to record the elapsed time from when the operation command for resuming the operation of the transfer device is instructed by human operation to the operation state as the failure time caused by the type of the first abnormality. It is in.

When an abnormality is first detected by the abnormality detection means in the operating state, the control means changes to an abnormal state, and a different type of abnormality is detected with the subsequent recovery operation. Each time an abnormality of a different type is detected, if the target of timekeeping is switched one after another from an abnormality of the type that has been timed to a newly detected type of abnormality, the abnormality that is causing the recovery work The time of the abnormal state for the type is shorter than the actual failure time, and it cannot be said that the failure time for the type of abnormality that is the cause of the abnormal state of the article conveying apparatus is appropriate.
According to this feature configuration, when the abnormal time management means detects an abnormality in the abnormal state after the abnormality is detected in the operational state, the abnormality detection means detects the abnormality in the operational state immediately before the abnormal state occurs. Since the elapsed time after that is recorded as a failure time caused by the type of the abnormality, the time can be measured in the abnormal state of the abnormality first detected in the operating state. Thereby, the time of the abnormal state due to the type of abnormality that caused the operation of the article conveying apparatus to be forcibly stopped can be measured as the failure time, and is appropriate as the failure time.

The third characteristic configuration of the article transport facility according to the present invention is that, when a failure time analysis command is commanded by an artificial operation, the abnormality detection unit detects the abnormal state from the operation state of the article transport device to be detected. The number of failures is counted as a single failure, and the abnormality detection means detects the article conveyance device from the operating state to the abnormal state. Calculating a failure interval time until it changes to, and, based on the number of failures and the plurality of failure interval times, calculating an average failure time for the article conveying device in a set period set by human operation, There is a display control means for displaying the average failure time on the display means in a form corresponding to the device identification information for identifying the article conveying apparatus.

  According to this characteristic configuration, since the operator gives a failure time analysis command, the average failure time for the article transport device to be detected by the abnormality detection means is displayed on the display means. The average failure time can be recognized by a simple method, and it becomes easy to evaluate the operation results of the article transport facility.

According to a fourth characteristic configuration of the article conveying facility according to the present invention, an alarm unit that operates to notify an operator of an abnormal state when the operation state is switched to the abnormal state, and the operation of the alarm unit is stopped. An alarm cancel command means that can be commanded manually by an alarm operation, and the abnormal time management means has an operation command for restarting the operation of the article conveying device after the alarm cancel command is commanded. It is the point which is comprised so that the elapsed time until it will be instruct | indicated by the above-mentioned and it will be in the said driving | running state may be time-measured, and it may record as recovery operation | work time.

According to this characteristic configuration, an abnormality is detected in the driving state, the alarm means is activated, and the operator recognizes the abnormal state. Then, the operator enters the work for recovering from the abnormal state by commanding the alarm cancellation command means to stop the operation of the alarm means. When the abnormal state is recovered, an operation command for resuming the operation of the article transporting device is issued by the operator, and the article transporting device enters the operating state.
In such a series of events from occurrence of abnormality to resumption of operation, after an alarm release command is issued and the operation of the alarm means is stopped, an operation command for resuming the operation of the article conveying device is issued and the operation state is entered. The elapsed time until is timed by the abnormal time management means and recorded as the recovery work time. Therefore, the recorded recovery work time is the time from the stop operation of the alarm means, which is the time when the worker actually enters the recovery work after the occurrence of an abnormality, to the restart of the operation of the article conveying apparatus. It is possible to properly recognize the time required for the restoration work.

According to a fifth characteristic configuration of the article transport facility according to the present invention, when the restoration work time analysis command is commanded by a manual operation, the abnormality detection unit detects the abnormality from the operation state of the article transport device to be detected. By counting the number of times of failure as a single change to the state, and based on the restoration work time and the number of failures for the article transport device to be detected by the abnormality detection means, Display control means is provided for calculating an average repair time for the article transporting device in a set period to be set and displaying the average repair time on the display means in a form corresponding to device identification information for identifying the article transporting device. There is in point.

  According to this characteristic configuration, since the operator instructs a restoration work time analysis command, the average repair time for the article transport device to be detected by the abnormality detection means is displayed on the display means. The average repair time can be recognized by a simple method, and it becomes easy to evaluate the operation results of the article transport facility.

Overall layout of automatic warehouse equipment Control block diagram of automatic warehouse equipment External perspective view of monitor terminal Block diagram showing configurations of monitoring device and monitor terminal Initial screen of the monitoring menu Monitoring menu enlarged screen Diagram explaining failure time and recovery work time that is recorded and recorded by the abnormal time management means A diagram explaining the maintenance time that is recorded and recorded by the abnormal time management means Error history information displayed on the display Table showing the average failure time, etc. displayed on the display

An embodiment of an article conveying facility according to the present invention will be described with reference to the drawings by an example applied to an automatic warehouse facility. FIG. 1 is an arrangement plan view of an automatic warehouse facility.
This automatic warehouse equipment is self-propelled on a shelf 3 having a plurality of article storage spaces 2 for storing containers 1 as articles, and on a travel route 4 along the shelf 3, and the container 1 enters between the shelves 3. Eight sets of automatic equipped with a stacker crane 5 for unloading and a pair of loading conveyor 6a and unloading conveyor 6b for transporting container 1 between the loading / unloading position of stacker crane 5 and the loading / unloading position of container 1 Three self-propelled transport carts 10 for loading and unloading the warehouse 8, the warehousing conveyor 6a and the unloading conveyor 6b, and the container 1, and transporting the container 1 by self-propelled on the loop-shaped traveling path 9 Nine sets of cargo handling devices 12 having three conveyors 11 for receiving and transferring the container 1 with the self-propelled transport cart 10 and the container 1 loaded from the outside to the station of the self-propelled transport cart 10 And two loading conveyor 13 which conveys, is configured to include a two carry-out conveyor 14 for conveying the containers 1 to be carried out to the outside from the station of the self transport carriage 10.

  The container 1 can accommodate a plurality of loads (in the present embodiment, individually packaged products), and the stacker crane 5, the loading / unloading conveyor 6, the self-propelled conveying cart 10, and the cargo handling conveyor device described above. 12, a plurality of article conveying apparatuses such as a carry-in conveyor 13 and a carry-out conveyor 14 relay and automatically convey the container 1 while giving and receiving each other.

  A fence 19 is provided as a safety fence that partitions the inner area and the outer area of the conveying operation by the article conveying apparatus so as to surround the plurality of article conveying apparatuses. In the vicinity of the end of the fence 19 opposite to the end where the loading / unloading port for the travel path of the stacker crane 5 is provided, an operator who performs maintenance work such as periodic inspections and restoration work such as repairs is provided. An operator entrance for entering and exiting the travel route is formed. The worker entrances and exits are provided corresponding to each of the stacker cranes 5, and a plurality of safety doors 7 for opening and closing the plurality of worker entrances and exits are provided.

  As shown in FIG. 2, each of the above-described article conveyance devices is connected to each control device so as to be able to communicate. These control devices are computers including a communication control unit, an input / output unit, an information processing unit, and a storage unit, and control the operation of each article conveyance device based on conveyance data transmitted from a conveyance management device C2 described later. .

  The carry-in conveyor 13 and the carry-out conveyor 14 are connected to the carry-in / out control device C3, the self-propelled conveyance cart 10 is connected to the cart control device C4, and the stacker crane 5 is connected to the crane control device C5 for warehousing. The conveyor 6a and the unloading conveyor 6b are connected to the loading / unloading control device C6, and the cargo handling device 12 is connected to the loading control device C7. The cart controller C4 and the three self-propelled transport carts 10 are communicatively connected by wireless communication using feeder lines disposed along the travel route. Further, the crane control device C5 and the stacker crane 5 are connected to each other by an infrared communication device.

  The device control apparatuses C3 to C7 are connected to a communication network provided in the automatic warehouse facility by a communication control unit included in each of the device control apparatuses C3 to C7. To this communication network, a work command device C0, a work management device C1, a transport management device C2, a monitoring device S, and a monitor terminal M are connected.

  The work command device C0, the work management device C1, the transfer management device C2, and the monitoring device S and the monitor terminal M are also computers including a communication control unit, an input / output unit, an information processing unit, and a storage unit. The work command device C0 commands a product shipping operation, a receiving operation, and a loading operation as a work request. When a work request is commanded from the work commanding device C0, the work management device C1 selects the corresponding container 1 as a transport target in order to process the product that is the target of the work request in accordance with the work request, and selects the container 1 A transport key is generated as identification information to be identified, transport data including the transport key and transport source information and transport destination information of the container 1 to be transported is generated, and the transport data is transmitted to the transport management device C2. When the transfer management device C2 receives the transfer data from the work management device C1, the transfer management device C2 receives the transfer data from the transfer source to the transfer destination in order to transfer the container 1 to be transferred specified by the transfer data. Conveying commands for operating various article conveying devices such as a self-propelled conveying cart 10, a cargo conveyor device 12, a carrying-in conveyor 13, and a carrying-out conveyor 14 are sent to the device control devices C3 to C7 that control the operation of the article conveying device. Command.

  For example, when a cargo handling request for a certain product is instructed from the work commanding device C0, the work management device C1 issues the shelf position of the container 1 that accommodates the product that is the target of the work request, and the cargo handling conveyor device 12 at the delivery destination. The conveyance data including the position of is transmitted. Receiving this, the transport management device C2 recognizes the shelf position of the container 1 to be transported by the transport data, and sends a transport command to the corresponding crane control device C5 of the automatic warehouse 8 to unload the container 1. To do. When the crane control device C5 finishes unloading the container 1 from the shelf 3 to the unloading conveyor 6b with the stacker crane 5 to be controlled, the crane control device C5 transmits the transfer completion information to the transfer management device C2. Next, the conveyance management device C2 transmits a conveyance command to the entry / exit control device C6, and the entry / exit control device C6 conveys the container 1 when the conveyance of the container 1 to the conveyance end is completed on the controlled conveyor 6b. Send completion information. Subsequently, the conveyance management device C2 determines the allocation of the self-propelled conveyance cart 10 in charge of conveyance, and the conveyance control command for causing the cart control device C4 to convey the container 1 to the cargo handling conveyor device 12 using the allocated self-propelled conveyance cart 10. Send. The cart control device C4 transmits the transfer completion information to the transfer management device C2 when the self-propelled transfer cart 10 completes the transfer. Finally, the conveyance management device C2 transmits a conveyance command to the cargo handling control device C7, and when the cargo handling conveyor device 12 completes the conveyance, the cargo handling control device C7 transmits conveyance completion information to the conveyance management device C2. Then, the transfer management device C2 transmits a transfer completion report to the work management device C1 on the assumption that the container 1 has been transferred to a predetermined transfer position of the cargo handling conveyor device 12 that is the transfer destination specified by the transfer data. In this way, the container 1 necessary for the cargo handling operation is conveyed from the article storage space 2 of the automatic warehouse 8 to a predetermined conveyance position of the cargo conveyor device 12.

  Incidentally, the transfer completion information received by the transfer management device C2 from the crane control device C5 or the like until the container 1 is transferred to the predetermined transfer position of the cargo conveyor device 12 is transmitted as progress information to the work management device C1. As a result, the work management apparatus C1 can manage the progress status to which article transport apparatus the container 1 that is the transport target of the transport data has been transported.

  At a predetermined transport position of the cargo conveyor device 12, a loading operation and a payout operation, which are manual operations by the worker P, are performed. A work location is set for each of the nine sets of cargo conveyor devices 12. In other words, in this embodiment, a plurality of work locations are provided, and nine cargo handling devices 12 serving as work location transport devices are provided corresponding to the nine work locations. Then, the stacker crane 5, the loading / unloading conveyor 6, the self-propelled conveyance carriage 10, and the cargo handling conveyor device 12 convey the container 1 that is an object of manual work by the worker P from the conveyance source to the work location that is the conveyance destination. It functions as an article conveying device. In addition, each work location is set to perform both a loading operation for loading products in the container 1 and a payout operation for paying out products from the container 1.

  In this way, the stacker crane 5, the loading / unloading conveyor 6, the self-propelled conveying cart 10, the cargo handling conveyor device 12, the loading conveyor 13, and the unloading conveyor 14 as a plurality of article conveying apparatuses can exchange articles with each other. As a control means that is provided in a state and controls the operations of the plurality of article transport apparatuses, a plurality of device control devices C3 to C7 that control the operations of the respective article transport apparatuses are provided.

The device control devices C3 to C7 include an operation switch for instructing an operation command and a stop switch for instructing an operation stop command. When the device control apparatuses C3 to C7 are activated by turning on the power, the initial state is a normal stop state. When the operator P commands the operation switch, the operation command is instructed. For example, when the crane control device C5 is described as an example, the operation state in which the operation of the stacker crane 5 is controlled based on the conveyance data is entered. When the operation stop switch is commanded, an operation stop command is issued, and a normal stop state is entered in which the stacker crane is not controlled based on the conveyance data.
In other words, the equipment control devices C3 to C7 control the article conveyance device based on the conveyance data when an operation stop command is issued by an artificial operation in an operation state in which the operation of the article conveyance device is controlled based on the conveyance data. Is configured to transition to no normal stop state.

  Then, the transfer management device C2 instructs the device control devices C3 to C7 to transfer transfer data in order to transfer the container 1 to be transferred from the transfer source to the transfer destination. At that time, as described above, the transport management device C2 relays the container 1 whose transport data is to be transported by a plurality of article transport devices and transports the container 1 from the transport source to the work location based on the transport data. It is configured to sequentially issue a conveyance command to each of the crane control device C5, the entry / exit control device C6, the cart control device C4, and the cargo handling control device C7 as a plurality of device control devices.

  The work commanding device C0 takes an incoming work request, a shipping work request, and a cargo handling work request generated within a predetermined period set in advance as a single work unit, and outputs a plurality of work requests for a plurality of products included in the work unit. A batch processing method is used in which the work management apparatus C1 is instructed collectively as one work instruction. Therefore, the work management apparatus C1 generates transport data corresponding to a plurality of work requests, and manages the progress status and the completed / uncompleted processing state of each of the transport data.

  Each of a plurality of article conveying devices such as a stacker crane 5, a loading / unloading conveyor 6, a self-propelled conveying cart 10, a cargo handling conveyor device 12, a loading conveyor 13 and a conveying conveyor 14 detects an abnormality of the article conveying device. A sensor D as a detecting means is provided. In FIG. 2, one sensor D is described for each article transport device, but in reality, a large number of sensors D for detecting a plurality of types of abnormalities are provided for one article transport device. That is, the abnormality detection means is configured to be able to detect a plurality of types of abnormalities in the article transporting apparatus separately.

  The detection information of each sensor is input to the control devices C3 to C7 that control the operation of the article transport device that is the detection target, as sensor information with identification information for identifying the sensor D. Thereby, the conveyance management apparatus C2 and the monitoring apparatus S can acquire the detection information about the detection target part of the article conveyance apparatus which each sensor D is the detection target.

  Although not shown in FIG. 1, the crane control device C5 for the stacker crane 5 is connected to a sensor S for detecting the opening and closing of the safety door 7 provided on the fence 19, and the carry conveyor 13 and The carry-in / out control device C3 of the carry-out conveyor 14 includes a sheet switch type that detects the worker P when the worker P enters the work range beyond the fence 19 along the conveyance path of these conveyors. Sensor D is connected.

  Each stacker crane 5 is provided with a lift position detection means for detecting the lift position of the lift base and a travel position detection means for detecting the travel position of the travel carriage of the stacker crane 5. Optical distance measuring type position detecting means is employed that measures the distance by irradiating the reference reflector with light and receiving the reflected light. The stacker crane 5 is a software for detecting an abnormality when the correspondence between the distance measurement information of the elevation position detecting means and the traveling position detecting means and the operating state (speed, etc.) of the stacker crane 5 is not normal. A sensor D configured as described above is provided.

  The equipment control devices C3 to C7 will be described using the crane control device C5 as an example. In the operation state, when the sensor D as the abnormality detection means detects, for example, an abnormality in the lifting distance meter, the crane control device C5 forcibly stops the operation of the stacker crane 5 to make it abnormal. It is configured to control the operation of the stacker crane 5. That is, when a certain type of abnormality is detected by the sensor D in the operating state, the operation of the stacker crane 5 is forcibly interrupted and the conveyance of the container 1 is interrupted. Once an abnormal state occurs, the operating state cannot be restored again even if the operation switch is commanded unless the cause of the abnormality is removed and the normal state is restored.

  When the abnormality of the stacker crane 5 is detected by the sensor D in the operation state, the crane control device C5 restarts the operation of the stacker crane 5 after the abnormality of the stacker crane 5 is detected by the sensor D. The elapsed time from when the operation command is commanded by human operation to the operation state is counted and recorded as the failure time T1 (see FIG. 7). That is, the crane control device C5 and the other control devices C3 to C7 function as abnormal time management means.

  When the abnormality of the stacker crane 5 is detected by the sensor D after the crane control device C5 is switched from the operation state to the normal stop state, the abnormality of the stacker crane 5 is detected by the sensor D. Even if the operation command for resuming the operation of the stacker crane 5 is instructed by a manual operation to be in the operation state, the elapsed time until the operation state is reached is not recorded as the failure time T1. That is, switching from the operation state to the normal stop state means that the operation stop command is instructed by the operator P, and even if an abnormality is detected by the sensor D after that, the abnormality is Since this is an abnormality that occurs when the operator enters the transport work space of the stacker crane 5 for maintenance work, it cannot be said to be a failure time. Therefore, in such a case, even if an abnormality is detected by the sensor D, the failure time T1 is not counted. As a result, the failure time T1 recorded in the crane controller C5 becomes the time of an abnormal state caused by a failure or the like that does not include the time of the abnormal state that occurs with the maintenance work.

  Furthermore, when an abnormality of the stacker crane 5 is detected by the sensor D after the operation state is switched to the normal stop state, an operation command for restarting the operation of the stacker crane 5 after the switch to the normal stop state is made manually. The elapsed time from when the operation is commanded to the operation state is counted and recorded as the maintenance time T3 (see FIG. 8).

  The crane control device C5 is connected to alarm means (not shown) that operates to notify the operator P that the state is abnormal when the operation state is switched to the abnormal state. For example, an appropriate configuration such as a buzzer or a rotating lamp can be considered as the alarm means. When an abnormality is detected by the sensor D, the crane control device C5 automatically activates the alarm means based on the abnormality detection information. Thereby, the worker P can recognize that an abnormality has occurred.

  Once the alarm means is activated, the alarm by the alarm means continues until the "alarm release" button R on the layout screen displayed when the monitor menu of the monitor terminal M is selected is commanded with the mouse 18 to issue an alarm release command. As described above, the “alarm release” button R on the layout screen displayed on the display unit 15 is provided as an alarm release command unit that can freely issue an alarm release command for stopping the operation of the alarm unit by human operation. When an alarm cancel command is commanded at the monitor terminal M, the alarm cancel command is transmitted to the crane control device C5 that operates the alarm means, and the crane controller C5 stops the alarm operation of the alarm means.

The crane control device C5 counts the elapsed time from when the warning cancellation command is issued until the operation command for restarting the operation of the stacker crane 5 is commanded by the operator to enter the operating state, and records it as the recovery work time. It is configured as follows.
Thereby, after the occurrence of an abnormality, the elapsed time from the timing when the worker P actually started to specifically recover from the trouble can be recorded as the recovery work time, so that the recovery work time is appropriate.

  Next, the monitoring device S and the monitor terminal M will be described. The monitoring device S collects the management information of the work management device C1 and the transfer management device C2 and the control information of each of the device control devices C4 to C7, and monitors and analyzes the state of the automatic warehouse facility so that the worker can visually recognize the display. This is a server that generates display information for display in a form. When there are various display requests from the monitor terminal M that is a client, the requested display information is generated and transmitted to the monitor terminal M.

  As shown in FIG. 3, the monitor terminal M is a computer including a display unit 15 as a display unit that displays display information transmitted by the monitoring device S, a communication control unit, an input / output unit, an information processing unit, and a storage unit. The main unit 16 includes a keyboard 17 and a mouse 18 as input means for inputting a display command to the monitoring device S. As shown in FIG. 1, a plurality of monitor terminals M are provided at appropriate locations in the facility. In the present embodiment, one monitor for three to four work locations is used as a browsing monitor terminal for a worker who performs a loading operation or a payout operation at a work location to view the work expectation or the like. Terminal M is arranged.

  As shown in FIG. 4, the monitoring device S is composed of a main body unit including a communication control unit, an input / output unit, an information processing unit, and a storage unit. The monitoring terminal M displays the operation function and abnormality history of the monitoring function unit P1 that displays the processing status of the work on the monitor terminal M in real time, the operation history and abnormality history of the article transport device, the processing results of the transport work, and MTBF (Mean Time of Failure). The history display analysis function unit P2 and the like displayed on the display unit are provided in a program format. The information processing unit of the computer main body 16 in the monitor terminal M includes a display control unit P3 that causes the display unit 15 to display display information generated by the monitoring device S in a program format.

  Then, the history display analysis function unit P2 of the monitoring device S generates display information that causes the display unit 15 to display the abnormality history managed by the work management device C1, and the display information about the abnormality history is displayed on the monitor terminal M. It is displayed in a visible state on the display unit 15 by the display control action of the control unit P3 (see FIGS. 9 and 10). That is, the display control means G for displaying the abnormality history managed by the work management device C1 on the display unit 15 includes the history display analysis function unit P2 of the monitoring device S and the display control unit P3 of the monitor terminal M. .

  FIG. 3 shows a state where the initial screen information generated by the monitoring device S is displayed on the display unit 15 of the monitor terminal M, and desired display information is displayed by selecting various menus with the mouse cursor. It can be done. The abnormality history managed by the work management apparatus C1 is displayed on the abnormality history display screen as shown in FIG. 9 by selecting the “history” menu, and the “reliability data display” button T shown in FIG. When the selection operation is performed at, a failure time analysis command and a recovery work time analysis command are commanded, and the reliability data display screen shown in FIG. 10 is displayed.

  It should be noted that the abnormality history to be displayed and the period of the abnormality history to be analyzed are set in the period designation display area displayed on the display unit 15 before and after the “reliability data” button is selected with the mouse 18. Can be selected and set with the mouse 18.

  Of the abnormality history data recorded by the work management device C1 in association with the equipment code of the article transporting device, the display control means G uses the abnormality state data for the abnormality first detected in the operation state from the operation state. As the data regarding the abnormality that caused the abnormal state, the abnormality history data is recorded as abnormality cause history data in a form that is distinguished from other abnormality history data by setting a flag or the like. . When the "reliability data" button is selected and operated with the mouse 18 and a failure time analysis command is issued, the failure time T1 of the abnormality cause history data and the abnormality detection date and time associated therewith are extracted. And the average failure time MTBF and the average repair time MTTR are calculated.

  That is, when a failure time analysis command is instructed by selecting and operating the “reliability data display” button T displayed on the display unit 15 with the mouse 18, the display control means G detects that the sensor D is to be detected. The change from the operating state to the abnormal state of the article conveying apparatus to be operated is counted as one failure, and the number of failures is counted, and the sensor D performs the next operation after the article conveying apparatus to be detected changes from the operating state to the abnormal state. A failure interval time until the state changes to an abnormal state is calculated, and an average failure time MTBF for the article conveying device in a set period set by manual operation is calculated based on the number of failures and a plurality of failure interval times. As shown in FIG. 10, this average failure time MTBF is displayed on the display means in a form corresponding to a device code as device identification information for identifying the article transporting device.

  When a recovery work time analysis command is instructed by selecting and operating the “reliability data display” button T displayed on the display unit 15 with the mouse 18, the display control means G causes the sensor D to be detected. Based on the recovery work time and the number of failures for the article transport device to be detected by the sensor D, the change of the operation state from the operation state to the abnormal state for the article transport device is counted as one failure. Then, an average repair time MTTR for the article transporting device in a set period set by human operation is calculated, and this average repair time MTTR is made to correspond to a device code as device identification information for identifying the article transporting device. To display on the display means.

  When displaying the unconveyed number managed by the work management apparatus C1, first, the initial screen of the monitoring menu shown in FIG. 4 is displayed by selecting the “Monitoring” menu on the initial screen shown in FIG. Although the number of unconveyed items is displayed on the initial screen, it is displayed only in characters that are small enough to be unreadable on the layout screen of the entire facility. Therefore, it is possible to display by enlarging and displaying the article conveying apparatus for which the number of unconveyed items is to be displayed.

  As shown in FIG. 5, the entire layout of the automatic warehouse facility is displayed on the initial screen of the “monitoring” menu (hereinafter referred to as the monitoring menu). When an enlarged display menu is selected from a submenu (not shown) displayed by right-clicking in a state where a region Z1 to be enlarged is designated by dragging the mouse 18, a screen as shown in FIG. 6 is displayed. When the reduced display menu is selected from the submenu displayed by right-clicking the mouse 18, the screen shifts to the initial screen of the monitoring menu shown in FIG.

  As shown in FIGS. 5 and 6, in the monitoring menu, a layout screen is displayed in which symbols indicating the respective article transport apparatuses are displayed in correspondence with their actual arrangement. That is, the display control means G is configured to be able to display a layout screen in which symbols indicating each of the plurality of article conveyance devices are displayed in correspondence with the arrangement of the plurality of article conveyance devices.

  On the layout screen, the six operating states of “operating”, “abnormal”, “stop”, “disconnecting”, “not connected”, and “communication abnormality” for each article conveying device displayed on the screen are displayed so as to be distinguishable by color coding. The Further, the display positions of the symbols indicating the stacker crane 5 that travels and travels along the travel route 4 and the self-propelled transport cart 10 that travels and travels along the travel route 9 are the actual positions in the equipment of the stacker crane 5 and the self-propelled transport cart 10. Correspondingly updated in real time.

  Note that when the mouse 18 is right-clicked with the mouse cursor positioned on a portion of the layout screen where there is no selection target, a submenu (not shown) for rotating the layout screen is displayed. When the rotation operation menu is selected, the layout screen display can be switched to a display rotated by 90 degrees. As a result, the layout screen can be displayed in an orientation that matches the position and orientation of the worker P who uses the monitor terminal M, and the correspondence between the actual equipment and the layout screen is easy to understand. Incidentally, the submenu displayed by right-clicking the mouse has a reduced display menu, which can be restored to the scale of the initial screen or the like.

  As shown in FIG. 6, the layout screen shows a container 1 that is not yet transported by each article transport device among containers 1 based on transport data for a plurality of work requests that are collectively commanded in batch processing for each article transport device. An unconveyed number that is one is displayed in proximity to or overlapping with a symbol indicating each article conveying device on the layout screen.

  Specifically, for the stacker crane 5, the crane remaining work number display section K is displayed in the vicinity of the symbol of the stacker crane 5, and each stacker crane 5 is displayed on the crane remaining work number display section K. A numerical value indicating how many containers 1 will be transported later is displayed. For the stacker crane 5, the crane remaining work number display section K is displayed in the vicinity of the symbol of the stacker crane 5, and how many containers 1 each stacker crane 5 will carry later. It is displayed.

  As described above, as the stacker crane 5 travels, the display position of the symbol of the stacker crane 5 on the layout screen moves, but the display position of the remaining work number display section K for the crane is also the same. It moves corresponding to the movement of the display position of the symbol 5.

  In addition, regarding the cargo handling device 12, an operator's remaining work number display portion J is displayed overlapping the symbol of the cargo handling device 12, and each worker's remaining work number display portion J displays each cargo handling device. A numerical value indicating how many containers 1 12 will be transported later is displayed. In other words, the display control means G is configured to be able to display the number of unconveyed items for the cargo conveyor device 12 in a form corresponding to the symbol indicating the cargo conveyor device 12 on the layout screen. Thereby, each worker P can grasp | ascertain exactly how many cargo handling work is scheduled at the work location which he is responsible, and can also grasp | ascertain the number of remaining work of the work location which others are in charge of. Therefore, for example, it is easy to plan a work action schedule, such as planning the assistance of another person's work location with a large number of remaining work. In addition, since it is possible to grasp the workload of each work location, it is easy to schedule personnel assignment.

  Below the symbol of each cargo handling conveyor device 12 in the layout display, the number shown in the remaining work number display section J for the worker is the number of loading work, payout work, and both of these work numbers. The arrow symbols Y1 to Y3 for distinguishing and indicating whether or not is displayed. The arrow symbol Y1 indicates that the number indicated in the worker remaining work number display portion J is the number of loading operations, and the arrow symbol Y2 indicates the number indicated in the worker remaining work number display portion J. Indicates the number of payout operations, and the arrow symbol Y3 indicates that the number indicated in the worker remaining work number display section J is the number of both loading and payout operations.

  A plurality of containers 1 to be transported in the future based on unfinished transport data after the work location of the cargo handling conveyor device 12 are scheduled for both loading work and delivery work. In the worker remaining work number display section J for the work position (the work position indicated by the arrow symbol Y3 in FIG. 6), the total work number of the loading work number and the payout work number is displayed. That is, the display control means G is still in the work location of the container 1 that is not yet transported to the work location of the container 1 that is the target of the loading operation and the work location of the container 1 that is the target of the payout operation. The total number of unconveyed containers that have not been transported and the transport data is displayed on the display unit 15 as the number of untransported containers.

  On the layout screen, a container 1 that is a transfer target of each transfer data managed by the work management apparatus C1 is displayed as a symbol. Corresponding to the progress of the transport operation of the container 1 ascertained from the transport data, the container 1 is displayed superimposed on the symbol of the article transport device that is currently transporting. FIG. 6 shows an example in which the warehousing conveyor 6a in the region indicated by Z2 in the drawing and the self-propelled conveyance carriage 10 stopped at the station corresponding thereto are in an abnormal state. When the stacker crane 5 or the self-propelled transport carriage 10 is in charge of transporting the container 1, until the container 1 is actually received on the article transport device, that is, until the scooping cycle is completed, The symbol of container 1 is not overlapped with the symbol, and the symbol of container 1 is overlapped with the symbol of the article transport apparatus that was in charge of transport immediately before.

  When such an abnormal state occurs, it is assumed that a trouble has occurred when the container 1 is transferred from the self-propelled transport cart 10 to the warehousing conveyor 6a, so the worker P goes to the location. Perform recovery work. In the restoration work, the worker refers to the display position of the container 1 on the layout screen of the monitor terminal M, and if the container 1 is set on either the self-propelled transport cart 10 or the warehousing conveyor 6a, the transport data It is easy and quick to know whether or not alignment is possible. Therefore, in the recovery operation of the abnormal state, it is not necessary to take measures such as dispensing the container 1 and deleting the corresponding transfer data, and the article transfer responsible for the transfer of the container 1 grasped by the transfer data after the recovery operation of the abnormality The device and the article transport device that actually transports the container 1 are inconsistent, and it is possible to prevent the occurrence of a secondary failure that becomes an abnormal state again, and the progress status managed by the transport data matches the actual transport position of the container 1 It is possible to resume the operation of the article transporting apparatus that has been in an abnormal state when it has been removed.

  An abnormality occurred in any of the stacker crane 5, the loading / unloading conveyor 6, the self-propelled carriage 10, the cargo handling conveyor device 12, the loading conveyor 13, and the unloading conveyor 14 as a plurality of article conveying devices in an operating state. Is detected by the sensor D provided in each article conveying device, the control devices C3 to C7 for controlling the operation of the corresponding article conveying device are switched from the operating state to the abnormal state based on the detection information. . When this is recognized by the monitoring device S, the display color of the symbol on the layout screen of the article conveying device in which an abnormality has been detected also changes from green indicating the operating state to red indicating the abnormal state.

  Below, with reference to FIG. 7, an example of a case where the lifting position detecting means for detecting the lifting position of the lifting platform included in the stacker crane 5 fails will be described with respect to the failure time T1 and the recovery work time T2 performed by the crane control means C5. Timekeeping and recording will be described.

  If an abnormality that causes the lift position detecting means to malfunction occurs in the operating state, the abnormality is detected by the sensor D, and an abnormal state occurs. Then, the abnormality occurrence information of the error code “V01” indicating the abnormality of the lifting distance meter is transmitted from the crane control device C5 to the transport management device C2. As a result, the crane control device C5 starts measuring the failure time T1, and on the layout screen of the monitor terminal M, the color of the symbol of the corresponding stacker crane changes as described above, and the alarm means is activated.

  When the worker P recognizes the occurrence of an abnormality by the warning of the warning means, the recovery work is started. First, by selecting the monitor menu on the monitor terminal M and referring to the layout screen, the article conveying apparatus that is “abnormal” is recognized. Since the “alarm release” button R is displayed on the layout screen, the alarm operation of the alarm means is stopped by performing a selection operation with the mouse 18. As a result, the crane control device C5 starts measuring the restoration work time T2.

  The worker P opens the safety door 7 that allows easy access to the location where the abnormality has occurred in order to enter the inside of the fence 19 and perform an operation for recovering the abnormality. At this time, the safety door open abnormality is detected by the sensor S that detects opening / closing of the safety door 7, and the abnormality occurrence information of the error code “G01” is transmitted from the crane control device C5 to the conveyance management device C2. At this time, the display state of the symbol of the safety door 7 may be switched from the closed state to the open state on the layout screen.

  The worker P enters the travel route of the stacker crane 5 from the worker entrance and walks toward the stacker crane 5, so that the distance measuring light of the travel distance meter provided in the stacker crane 5 is the light of the worker P. If it is blocked by a foot or the like, it is assumed that the correspondence between the distance measurement information of the traveling position detection means and the operating state (speed, etc.) of the stacker crane 5 is not normal in the sensor D that detects an abnormality of the traveling distance meter An abnormality in the travel distance meter is detected, and abnormality occurrence information of error code “H01” is transmitted from the crane control device C5 to the conveyance management device C2. Since this travel distance meter abnormality is not an abnormality detected in the driving state, the malfunction time T1 is not counted for the abnormality of the current error code “H01”.

  When the worker P performs work such as exchanging the lifting distance meter of the stacker crane 5, if the detection light of the packing confirmation sensor D provided on the lifting platform is shielded, the sensor D causes the loading abnormality. Is detected, and the abnormality occurrence information of the error code “C01” is transmitted from the crane control device C5 to the transport management device C2. Since the load appearance abnormality is not an abnormality detected in the operation state, the failure time T1 is not counted for the abnormality of the current error code “C01”.

  When the restoration work of the lifting distance meter is completed, the worker P commands and operates an abnormality cancellation command with an abnormality cancellation button (not shown) provided in the transport management device C2. If the elevating distance meter has been correctly recovered, it will be in a normal stop state when an abnormality cancel command is issued. Then, when the operator P commands the operation switch to restart the operation of the stacker crane 5, the operation command is issued, and the crane control device C5 controls the operation of the stacker crane 5 based on the conveyance data. It becomes. At this time, the crane control device C5 finishes counting the failure time T1 and the recovery work time T2, and stores the error code, the failure time T1 and the recovery work time T2 in association with each other in a storage unit such as a memory or a hard disk.

  The maintenance time T3 recorded by the crane control means C5 will be described with reference to FIG. 8, taking as an example the case where the maintenance work of the stacker crane 5 is performed.

  When performing maintenance work, first, the operator P commands the operation stop switch to instruct the operation stop command in order to switch the stacker crane 5 and the crane control device C5 in the operation state to the normal stop state. As a result, the operation state is switched to the normal stop state. The crane control device C5 starts measuring the maintenance time T3 from this point.

  The worker P opens the safety door 7 corresponding to the maintenance target stacker crane 5 in order to enter the fence 19 and perform maintenance work. At this time, the safety door open abnormality is detected by the sensor S that detects opening / closing of the safety door 7, and the abnormality occurrence information of the error code “G01” is transmitted from the crane control device C5 to the conveyance management device C2. This safety door open abnormality is an abnormality detected in the normal stop state, and is not an abnormality detected in the operation state. That is, this safety door open abnormality is an abnormality associated with maintenance work. Therefore, the failure time T1 is not measured for this abnormality.

  When the worker P walks the travel route of the stacker crane 5 for maintenance work, the distance measuring light of the travel distance meter provided in the stacker crane 5 is blocked by the feet of the worker P, etc. An abnormality in the travel distance meter is detected by the sensor D that detects an abnormality in the distance meter, and abnormality occurrence information of the error code “H01” is transmitted from the crane control device C5 to the transport management device C2. Since this odometer abnormality is not an abnormality detected in the driving state, like the previous safety door open abnormality, this odometer abnormality is an abnormality associated with maintenance work. Does not measure the failure time T1.

  When the maintenance work is completed, the worker P commands and operates an abnormality cancellation command with an abnormality cancellation button (not shown) provided in the transport management device C2. At this time, for example, if an abnormality is detected due to forgetting to close the safety door 7, the abnormal state cannot be canceled. When an abnormality cancel command is commanded and a normal stop state is entered, the operator P commands the operation switch to command the operation command, restarts the operation of the stacker crane 5 and switches to the operating state. At this time, the crane control device C5 finishes counting the maintenance time T3, and associates the maintenance time T3 with the maintenance work date and time and stores them in a storage unit such as a memory or a hard disk.

[Another embodiment]
The invention made by the inventor has been specifically described based on the embodiment of the invention. However, the present invention is not limited to the embodiment described above, and various modifications can be made without departing from the scope of the invention. Hereinafter, another embodiment of the present invention will be illustrated.

(1) The display form on the screen of the monitor terminal M shown in the above embodiment is an example, and the display form such as the mean failure time can be changed as appropriate.

(2) In the above-described embodiment, the automatic warehouse equipment including the automatic warehouse 8, the cargo handling conveyor device 12, and the self-propelled conveyance cart 10 is shown as the article conveyance equipment. You may comprise and comprise an apparatus, and you may comprise by other goods conveyance facilities, such as unmanned vehicle system, a monorail system, a linear motor type conveyance system, for example, article conveyance facilities other than automatic warehouse equipment.

(3) In the above embodiment, an example in which three monitor terminals M are installed is illustrated, but the number of installed monitor terminals M and the arrangement form can be appropriately changed. The monitor terminal may be a mobile terminal that can be wirelessly connected to a communication network.

(4) In the above-described embodiment, the display control unit and the display unit are illustrated as being implemented by being distributed and mounted on the monitoring device S and the monitor terminal M. However, the monitoring device S and the image display unit included in the monitoring device S are provided. Display control means and display means may be realized. Further, the display control means may be realized by being distributed and mounted on any of the work command device C0, the work management device C1, and the transfer management device C2 and the monitor terminal M.

(5) In the above embodiment, an example in which one work management device C1 is provided is illustrated, but a plurality of work management devices C1 may be provided. In this case, each work management device C1 preferably manages a plurality of transfer control devices in a shared manner based on the types of article transfer devices that are controlled by them.

P Worker G Display control means C3 to C7 Control means T1 Failure time T2 Restoration work time T3 Maintenance time D Abnormality detection means R Alarm release command means 1 Article 5, 6, 10, 12, 13, 14 Article transport device 15 Display means

Claims (5)

An article conveying device for conveying an article;
Control means for controlling the operation of the article conveying device based on conveyance data designating a conveyance destination and a conveyance source;
An abnormality detecting means for detecting an abnormality of the article conveying apparatus is provided;
In the operation state in which the control means controls the operation of the article conveying device based on the conveyance data, if an operation stop command is commanded by human operation, the article conveying device is not controlled based on the conveyance data. It is configured to shift to a normal stop state, and in the operation state, when an abnormality is detected by the abnormality detection means, the operation of the article conveying device is forcibly stopped to be in an abnormal state. An article conveying facility configured to control operation of the article conveying apparatus,
When the abnormality detection unit detects an abnormality of the article conveyance device when the control unit is in the operation state, the abnormality detection unit detects an abnormality of the article conveyance device, and then the article conveyance is performed. An abnormal time management means is provided for measuring the elapsed time from when the operation command for restarting the operation of the apparatus is commanded by human operation until the operation state is reached and recording it as a failure time,
When the abnormality detection unit detects an abnormality in the article transporting device after the control unit is switched from the operation state to the normal stop state, the abnormality detection unit detects the abnormality time management unit. Even if an operation command for resuming the operation of the article transporting device after an abnormality is detected in the article transporting device is instructed by human operation to enter the operating state, the elapsed time until the operating state is reached is the failure time. is configured not to record as,
When the abnormality detecting unit detects an abnormality of the article transporting device in the abnormality detecting unit after the control unit is switched from the operating state to the normal stop state, the control unit An article configured to count the elapsed time from when the operation command to resume the operation of the article conveying device after being switched to the stop state is instructed by an artificial operation and to enter the operation state, and record it as a maintenance time . Transport equipment. The abnormality detection means is configured to be able to detect a plurality of types of abnormalities in the article transporting device separately,
Wherein said abnormality time control means, after the first abnormality is detected by the control unit of the article transport device by said abnormality detection means is changed to the abnormal state from the operating state, detected by the driving state When an abnormality of a type different from the first abnormality is detected, the article is detected after the abnormality detection means detects the first abnormality in the operation state immediately before the abnormality state based on the first abnormality is reached . The elapsed time from when the operation command for resuming the operation of the transfer device is instructed by human operation to the operation state is recorded as a failure time caused by the type of the first abnormality. claim 1 Symbol placement article transport facility. When the failure time analysis command is commanded by manual operation, the abnormality detection means counts the number of failures with a change from the operating state to the abnormal state as the detection target for the article transporting device as a detection target. The failure detection means calculates a failure interval time from when the article transport device to be detected changes from the operating state to the abnormal state until the next change from the operating state to the abnormal state. Based on the number of times and the plurality of failure interval times, an average failure time is calculated for the article conveying device in a set period set by human operation, and the average failure time is used to identify the article conveying device. The article conveyance facility according to claim 1 or 2, further comprising display control means for displaying on the display means in a form corresponding to information . An alarm means that operates to notify the operator of an abnormal state when the operational state is switched to the abnormal state;
An alarm release command means is provided that can be commanded manually by an alarm operation to stop the operation of the alarm means,
The abnormal time management means measures the elapsed time from when the alarm cancel command is commanded to when the operation command for resuming the operation of the article transport device is commanded by human operation to enter the operating state, and the recovery work time The article conveying facility according to claim 1, wherein the article conveying facility is configured to record as: When the restoration work time analysis command is instructed by a manual operation, the number of failures is counted with a change from the operating state to the abnormal state as a single failure for the article conveying device to be detected by the abnormality detection means. In addition, based on the restoration work time and the number of failures for the article transport device to be detected by the abnormality detection means, the average repair for the article transport device in a set period set by manual operation 5. The article transport facility according to claim 4, further comprising display control means for calculating time and displaying the average repair time on the display means in a form corresponding to device identification information for identifying the article transport apparatus .

Images