Equipment management system and equipment management method
The facility management system addresses safety concerns by using sensors and a safety controller to halt electric equipment when doors are open, ensuring user safety and system functionality.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- IHI PARKING SQUARE CO LTD
- Filing Date
- 2024-12-18
- Publication Date
- 2026-06-30
Smart Images
Figure 2026106497000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a facility management system and a facility management method.
Background Art
[0002] Facilities such as mechanical parking lots are provided with electric facilities such as automatically opening and closing doors and lift devices for transporting stored items to different floors. Sensors for acquiring information indicating the operating state or the surrounding environmental state are installed in these facilities. In a management system for managing these facilities, an operation control unit that controls the operation of the facilities monitors the detection status by these sensors, and when a predetermined detection state is reached, outputs a drive stop signal to a power control unit that drives the operation mechanism of the facilities, thereby performing safe operation.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] For example, in a mechanical parking lot, when the opening and closing door at the entrance / exit is open, users can enter and exit the parking lot. Therefore, in order to appropriately ensure the safety of users, it is desirable to stop the operation of the facilities in the parking lot.
[0005] To address this, by installing a sensor that recognizes the opening and closing state of the opening and closing door, when this sensor fails to detect that the door is closed, the operation control unit can recognize that the opening and closing door is open and stop the operation of the facilities in the parking lot.
[0006] However, there was a problem that if all facilities were always stopped when the opening and closing door was open, it could cause inconvenience in using the mechanical parking lot.
[0007] This invention has been made in view of the above circumstances, and aims to provide an equipment management system and equipment management method that can appropriately ensure the safety of users when they use a facility equipped with electric equipment, including opening and closing doors. [Means for solving the problem]
[0008] To achieve the above objective, the present invention provides a facility management system for managing a plurality of electric equipment, including an opening and closing door within a facility, comprising: a door open detection sensor for detecting the open state of the opening and closing door; an equipment detection sensor for detecting the operating state of equipment other than the opening and closing door; and a safety controller that, when the opening and closing door is detected to be open by the door open detection sensor, and the equipment detection sensor detects that the equipment other than the opening and closing door is set to be unable to maintain the open state of the opening and closing door simultaneously, executes an emergency stop function to emergency stop the plurality of electric equipment.
[0009] Furthermore, in the equipment management method of the present invention, a safety controller, which is communicatively connected to a door open detection sensor that detects the open state of an opening / closing door within a facility and an equipment detection sensor that detects the operating state of electric equipment other than the opening / closing door, executes an emergency stop function to emergency stop multiple electric equipment, including the opening / closing door, when the door open detection sensor detects that the opening / closing door is open and the equipment detection sensor detects that the equipment other than the opening / closing door is set to be unable to maintain the open state of the opening / closing door simultaneously. [Effects of the Invention]
[0010] According to the equipment management system and equipment management method of the present invention, when users use a facility equipped with electric equipment including opening and closing doors, the safety of users can be appropriately ensured. [Brief explanation of the drawing]
[0011] [Figure 1]This is an overall diagram showing the configuration of the equipment management system according to the first embodiment. [Figure 2A] This is an external perspective view showing the opening H inside the mechanical parking garage P in an open state. [Figure 2B] This is an external perspective view showing the state in which the opening H inside the mechanical parking garage P is blocked by the pallet P. [Figure 3] This is a sequence diagram showing the processes performed by each piece of equipment in the equipment management system according to the first embodiment, from the transition of an opening / closing door from the closed state to the open state until it is fully open. [Figure 4] This is a sequence diagram showing the processes executed by each device when the door is fully opened and then closed in the equipment management system according to the first embodiment. [Figure 5] This is a sequence diagram showing the process when a swivel device, lift device, or other electric device operates after the door of an opening / closing door has been closed, in the equipment management system according to the first embodiment. [Figure 6] This sequence diagram shows a first example of processing when equipment in a mechanical parking lot P comes to an emergency stop in the equipment management system according to the first to third embodiments. [Figure 7] This sequence diagram shows a second example of processing when equipment in a mechanical parking lot P comes to an emergency stop in the equipment management system according to the first to third embodiments. [Figure 8] This sequence diagram shows a third example of processing when equipment in a mechanical parking lot P comes to an emergency stop in the equipment management system according to the first to third embodiments. [Figure 9] This is an overall diagram showing the configuration of the equipment management system according to the second embodiment. [Figure 10] This is a sequence diagram showing the processes performed by each device during the transition of an opening / closing door from a closed state to an open state in the equipment management system according to the second embodiment. [Figure 11] This is a sequence diagram showing the processes performed by each device in the equipment management system according to the second embodiment, from the time the opening operation of the door begins until it is fully open and the operation stops. [Figure 12]In the facility management system according to the second embodiment, it is a sequence diagram showing the processes executed by each device after the opening / closing door is fully opened until the door closing operation starts. [Figure 13] In the facility management system according to the second embodiment, it is a sequence diagram showing the processes executed by the device when the opening / closing door is closed. [Figure 14] In the facility management system according to the second embodiment, it is a sequence diagram showing the processes during the vehicle storage operation after the opening / closing door is closed. [Figure 15] It is an overall view showing the configuration of the facility management system according to the third embodiment. [Figure 16] In the facility management system according to the third embodiment, it is a sequence diagram showing the processes executed by each device until the opening / closing door shifts from the closed state to the open state. [Figure 17] In the facility management system according to the third embodiment, it is a sequence diagram showing the processes executed by each device from when the opening / closing door starts the opening operation until the operation stops after full opening. [Figure 18] In the facility management system according to the third embodiment, it is a sequence diagram showing the processes executed by each device after the opening / closing door is fully opened until the door closing operation starts. [Figure 19] In the facility management system according to the third embodiment, it is a sequence diagram showing the processes executed by the device when the opening / closing door is closed. [Figure 20] In the facility management system according to the third embodiment, it is a sequence diagram showing the processes during the vehicle storage operation after the opening / closing door is closed.
Embodiments for Carrying Out the Invention
[0012] Hereinafter, as an embodiment of the present invention, a facility management system for managing a mechanical parking lot P, which is a facility having a plurality of electric facilities including an opening / closing door, will be described using the drawings. In the mechanical parking lot P, a plurality of facilities that operate electrically, including an opening / closing door, are installed.
[0013] 《First Embodiment》 <Configuration of the equipment management system according to the first embodiment> Figure 1 is an overall diagram showing the configuration of the equipment management system 1A according to the first embodiment of the present invention. The equipment management system 1A manages the equipment in the mechanical parking lot P.
[0014] The equipment management system 1A comprises a first piece of equipment, an opening / closing door 10, a second piece of equipment, a swivel device 20, a third piece of equipment, a lift device 30, and a fourth piece of equipment, an additional electric device 40, all installed in the mechanical parking garage P, along with an opening detection sensor 50, a power control unit 60, an operation reception unit 70, an operation control unit 80A, and a safety controller 90A. The equipment other than the opening / closing door 10 in the mechanical parking garage P is not limited to a swivel device, a lift device, etc., and can be any electric device. Also, the number of equipment other than the opening / closing door 10 is not limited to three, but can be one, two, or four or more.
[0015] The opening / closing door 10 is a door installed at the entrance / exit of the mechanical parking garage P, and has a first power unit 11, a door closing detection sensor 12, an open limit detection sensor 13, and a closed limit detection sensor 14. The first power unit 11 is a mechanism for opening and closing the opening / closing door 10.
[0016] The door closed detection sensor 12 is a safety sensor that detects the closed state of the opening / closing door 10. When the door closed detection sensor 12 is in the OFF state, it can detect the open state of the opening / closing door 10, and therefore also functions as a door open detection sensor.
[0017] The open limit detection sensor 13 is an operation sensor that detects when the door 10 has reached a predetermined door open stop position and the door 10 has been fully opened. The closed limit detection sensor 14 is an operation sensor that detects when the door 10 has reached a predetermined door closed stop position and the door 10 has been fully closed. The open limit detection sensor 13 and the closed limit detection sensor 14 are composed of, for example, a sensor that physically detects when the door 10 has reached a predetermined position, a sensor that detects electromagnetically without contact, a sensor that detects by analyzing imaging information of the door 10, a sensor that detects by measuring the distance the door 10 moves due to the opening and closing operation, and a sensor that detects by measuring the position of the door 10. The open limit detection sensor 13 and the closed limit detection sensor 14 output detection information to the operation control unit 80A.
[0018] The slewing device 20 has a second power unit 21. The second power unit 21 is a mechanism for slewing the pallet P on which the vehicle is loaded. The lifting device 30 has a third power unit 31. The third power unit 31 is a mechanism for raising and lowering the pallet P within the mechanical parking lot P and transporting it to a different floor. The other electric device 40 has a fourth power unit 41.
[0019] Inside the opening and closing door 10 of the mechanical parking garage P, there is an entrance / exit area E for vehicles entering and exiting to load and unload pallets P. As shown in Figure 2A, an opening H is formed in the floor of the entrance / exit area E, and during the entry / exit process, as shown in Figure 2B, the pallet P on which the vehicle is loaded lands on the opening H from above, closing the opening H.
[0020] The opening detection sensor 50 is an equipment detection sensor that detects the operating status of equipment other than the opening / closing door 10, and is a safety sensor that detects when the opening H is closed.
[0021] In the equipment management system 1A, the slewing device 20, the lifting device 30, and other electric devices 40 are pre-configured to not be able to operate simultaneously with the opening and closing door 10.
[0022] The power control unit 60 is composed of, for example, an inverter, a switch, a PLC (programmable logic controller), and is connected to the power supply 61. Based on signals transmitted from the operation control unit 80A and the safety controller 90A, as described later, it drives or stops the first power unit 11 of the opening / closing door 10, the second power unit 21 of the slewing device 20, the third power unit 31 of the lifting device 30, and the fourth power unit 41 of the other electric devices 40. The power control unit 60 may be installed in duplicate for each power unit to improve fault tolerance.
[0023] The power control unit 60 and the first power unit 11 of the opening / closing door 10 are connected by a power supply line 110 and a communication line 120. A first switch 111 and a second switch 112, which switch the ON / OFF state of the connection between the power control unit 60 and the first power unit 11, are installed on the power supply line 110.
[0024] The power control unit 60 and the second power unit 21 of the slewing device 20 are connected by a power supply line 210 and a communication line 220. A third switch 211 and a fourth switch 212, which switch the ON / OFF state of the connection between the power control unit 60 and the second power unit 21, are installed on the power supply line 210.
[0025] The power control unit 60 and the third power unit 31 of the lift device 30 are connected by a power supply line 310 and a communication line 320. A fifth switch 311 and a sixth switch 312, which switch the ON / OFF state of the connection between the power control unit 60 and the third power unit 31, are installed on the power supply line 310.
[0026] The fourth power unit 41 of the other electric motor 40 is connected to the power supply 61 via a power supply line 410 without going through the power control unit 60, and a seventh switch 411 and an eighth switch 412 are installed on the power supply line 410 to switch the ON / OFF state of the connection between the power supply 61 and the fourth power unit 41.
[0027] The power control unit 60 switches the operation of the first power unit 11, the second power unit 21, the third power unit 31, and the fourth power unit 41 by, for example, 1) operation switching control by software, 2) operation switching control performed after adjustment of the operating speed by software, or 3) power supply ON / OFF control using a switch. The power control unit 60 may set which of the above 1) to 3) to adopt when controlling the operation of the equipment based on a signal from the operation control unit 80A and when controlling the operation of the equipment based on a signal from the safety controller 90A. Alternatively, the power control unit 60 may set which of the above 1) to 3) to adopt for each piece of equipment whose operation is to be controlled.
[0028] The operation reception unit 70 consists of, for example, an operation panel installed in the mechanical parking garage P or at a remote location, a remote controller or smart device held by the user, and receives information on operations related to the use of the mechanical parking garage P by the user. The operation reception unit 70 may also consist of a terminal that is communicably connected to a remote management device that remotely manages the mechanical parking garage P, and may receive information on operations to operate the equipment in the mechanical parking garage P output from this remote management device. These operations may be performed by the user, or they may be operations instructed by an autonomous mobile device such as an autonomous vehicle or delivery robot, or by an operator remotely controlling a mobile device.
[0029] The operation control unit 80A is composed of, for example, a PLC or a personal computer (PC), and controls the switches 111, 112, 211, 212, 311, 312, 411, 412, and the power control unit 60 based on the operation information received by the operation reception unit 70. Furthermore, when the operation control unit 80A detects an abnormality that has occurred in the safety controller 90A, it outputs a stop signal to the power control unit 60 to stop the operation of the equipment.
[0030] The safety controller 90A consists of a PLC or PC equipped with a self-check function to diagnose the operating status, including abnormalities in the device itself. When the safety controller 90A detects an abnormality occurring in equipment such as the operation control unit 80A connected to the device, or in safety sensors such as the door closing detection sensor 12 or the opening detection sensor 50, or in the safety controller 90A itself, or when it detects an abnormality occurring in the equipment or in a sensor based on sensor signals acquired from these sensors, it outputs a stop signal to the power control unit 60 to stop the operation of the equipment.
[0031] The safety controller 90A also monitors the open / closed status of switches 111, 112, 211, 212, 311, 312, 411, and 412, and, based on the open / closed status of these switches and the detection status of the door closing detection sensor 12, executes an emergency stop function to emergency stop multiple electric devices when a preset condition is met.
[0032] Specifically, when the door closing detection sensor 12 does not detect that the door opening / closing door 10 is closed, that is, when the door opening detection sensor 50 detects that equipment other than the door opening / closing door 10 is set to be unable to maintain the door opening / closing door 10 in an open state, the safety controller 90A executes an emergency stop function to emergency stop multiple electric equipment.
[0033] This "state in which equipment other than the opening / closing door 10 is set to be unable to be maintained simultaneously with the opening / closing door 10" refers, for example, to the closed state of switches installed on power supply lines 110, 210, and 310 connected to equipment other than the opening / closing door 10, such as the slewing device 20, the lift device 30, and other electric devices 40, or to the open state of an opening formed in the floor surface inside the opening / closing door 10 of the mechanical parking garage P.
[0034] In other words, the safety controller 90A executes an emergency stop function that stops multiple electric devices when the door closing detection sensor 12 does not detect the closed state of the opening / closing door 10, and any of the switches 211, 212, 311, 312, 411, or 412 are in the closed state.
[0035] Furthermore, the safety controller 90A executes an emergency stop function that stops multiple electric devices if the door closing detection sensor 12 does not detect that the door 10 is closed, and the opening detection sensor 50 does not detect that the opening H is closed.
[0036] <Operation of the equipment management system according to the first embodiment> This section describes the processes performed by each device in the equipment management system 1A when the opening and closing door 10 in the mechanical parking garage P opens and closes. Figure 3 is a sequence diagram showing the processes performed by each device when the opening and closing door 10 transitions from the closed state to the open state and is fully open.
[0037] In the initial state, the opening / closing door 10 is in the closed state (door closing detection sensor 12 is in the ON state), and the first power unit 11 is stopped. Also, the first switch 111, second switch 112, third switch 211, fourth switch 212, fifth switch 311, sixth switch 312, seventh switch 411, and eighth switch 412 are in the open state.
[0038] The safety controller 90A constantly monitors the open / closed status of the first switch 111, the second switch 112, the third switch 211, the fourth switch 212, the fifth switch 311, the sixth switch 312, the seventh switch 411, and the eighth switch 412 (S1).
[0039] When a user performs an operation to enter a vehicle into the parking lot or to take out a vehicle that is already parked at the parking lot using the operation reception unit 70, the operation reception unit 70 transmits an entry / exit command to the operation control unit 80A.
[0040] When the operation control unit 80A receives an entry / exit command from the operation reception unit 70 (S2), if there is no pallet P at the entry / exit gate E, it moves one of the pallets P to the entry / exit gate to prepare for vehicle entry / exit. Once the vehicle is prepared for entry / exit, the opening / closing door 10 becomes ready to be opened.
[0041] When the opening / closing door 10 is ready to be opened, the operation control unit 80A sends a closing command to the first switch 111 and the second switch 112 on the power supply line 110 connected to the opening / closing door 10 (S3), thereby closing it (S4).
[0042] The operation control unit 80A also transmits a door open command for the opening / closing door 10 to the power control unit 60 (S5). Based on the door open command from the operation control unit 80A, the power control unit 60 transmits an operation signal to the first power unit 11 to open the opening / closing door 10 (S6). Based on the operation signal received from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "stopped" to "operating" and starts the door opening operation (S7). When the door opening operation of the opening / closing door 10 starts, the detection state of the door closed detection sensor 12 switches from the ON state to the OFF state (S8).
[0043] When the opening / closing door 10 operates and reaches the fully open position, the opening limit detection sensor 13 detects that the opening / closing door 10 is fully open. Upon detecting that the opening / closing door 10 is fully open, the opening limit detection sensor 13 outputs a detection ON signal to the operation control unit 80A. When the operation control unit 80A receives the detection ON signal from the opening limit detection sensor 13 (S9), it sends an operation stop command to the power control unit 60 (S10).
[0044] When the power control unit 60 receives a stop command from the operation control unit 80A, it transmits a stop signal to the first power unit 11 (S11). Based on the stop signal received from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "operating" to "stopped" and stops the door opening operation (S12).
[0045] Furthermore, when the operation control unit 80A receives a detection ON signal from the opening limit detection sensor 13, it sends an open command to the first switch 111 and the second switch 112 on the power supply line 110 (S13), and sets them to the open state (S14).
[0046] Figure 4 is a sequence diagram showing the processes executed by each device when the door closing operation is performed after the door opening 10 has been fully opened. After the door opening 10 is fully opened and the user moves the vehicle onto the pallet P, the operation reception unit 70 performs a door closing operation to close the door opening 10 and sends a door closing command to the operation control unit 80A, or a determination unit (not shown) that automatically determines the timing of the closing operation of the door opening 10 sends a door closing command to the operation control unit 80A, at which point the operation control unit 80A receives this door closing command (S21).
[0047] When the operation control unit 80A receives a door closing command, it sends a closing command to the first switch 111 and the second switch 112 on the power supply line 110 (S22), thereby closing these switches 111 and 112 (S23).
[0048] The operation control unit 80A also transmits a door closing command for the opening / closing door 10 to the power control unit 60 (S24). Based on the door opening command from the operation control unit 80A, the power control unit 60 transmits an operation signal to the first power unit 11 to close the opening / closing door 10 (S25). Based on the operation signal received from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "stopped" to "operating" and starts the door closing operation (S26).
[0049] When the opening / closing door 10 operates and reaches the door-closed stop position, the closing limit detection sensor 14 detects that the opening / closing door 10 is fully closed. When the closing limit detection sensor 14 detects that the opening / closing door 10 is fully closed, it outputs a detection ON signal to the operation control unit 80A. When the operation control unit 80A receives the detection ON signal from the closing limit detection sensor 14 (S27), it outputs an operation stop command to the power control unit 60 (S28). When the power control unit 60 receives the operation stop command from the operation control unit 80A, it transmits a stop signal to the first power unit 11 (S29). Also, when the opening / closing door 10 is completely closed, the detection state of the door-closed detection sensor 12 switches from the OFF state to the ON state (S30).
[0050] Based on the stop signal received from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "operating" to "stopped" and stops the door opening operation (S31).
[0051] Furthermore, when the operation control unit 80A receives a detection ON signal from the open limit detection sensor 13, it sends an open command to the first switch 111 and the second switch 112 on the power supply line 110 (S32), thereby opening these switches 111 and 112 (S33).
[0052] Figure 5 is a sequence diagram showing the process when the slewing device 20, lift device 30, or other electric devices 40 operate after the opening / closing door 10 is closed. When the opening / closing door 10 is in the closed state, the operation control unit 80A sends a closing command to the third switch 211 and the fourth switch 212 on the power supply line 210, and the fifth switch 311 and the sixth switch 312 on the power supply line 310 (S41), thereby closing these switches (S42).
[0053] The motion control unit 80A also transmits a storage operation command to the power control unit 60 (S43). Based on the storage operation command from the motion control unit 80A, the power control unit 60 transmits an operation signal to the second power unit 21 to rotate the pallet P with the slewing device 20, and after the slewing operation is completed, transmits an operation signal to the third power unit 31 to move the pallet P with the lift device 30 (S44). Based on the operation signals transmitted from the power control unit 60, the second power unit 21 executes the slewing operation of the pallet P, and the third power unit 31 executes the moving operation of the pallet P (S45).
[0054] When the third power unit 31 performs the movement operation of the pallet P, the opening H of the loading / unloading port E opens, and the opening detection sensor 50 turns OFF (S46).
[0055] This completes the process when a user performs an operation to enter or exit the mechanical parking garage P, and all the equipment in the garage functions normally.
[0056] Figure 6 is a sequence diagram showing a first example of processing when the equipment in the mechanical parking garage P comes to an emergency stop. When the safety controller 90A detects that the door closing detection sensor 12 is in the OFF state and that at least one of the switches 211, 212, 311, 312, 411, and 412 is in the closed state while the opening / closing door 10 is in operation (S51, S52), it executes the emergency stop function (S53), causing the operating mechanisms of the equipment in the mechanical parking garage P (opening / closing door 10, swivel device 20, lift device, and other electric devices 40) to come to an emergency stop state (S54).
[0057] Figure 7 is a sequence diagram showing a second example of processing when the equipment in the mechanical parking garage P makes an emergency stop. When the safety controller 90A detects that the door closing detection sensor 12 has turned OFF while any of the equipment other than the opening / closing door 10, such as the swivel device 20, the lift device, and other electric devices 40, is operating (S61, S62), it executes the emergency stop function (S63), causing the operating mechanisms of the equipment in the mechanical parking garage P (opening / closing door 10, swivel device 20, lift device, and other electric devices 40) to enter an emergency stop state (S64).
[0058] Figure 8 is a sequence diagram showing a third example of processing when the equipment in the mechanical parking garage P comes to an emergency stop. When the safety controller 90A detects that the door closing detection sensor 12 has come to an OFF state while the opening detection sensor 50 is in the OFF state (S71, S72), it executes the emergency stop function (S73), causing the operating mechanisms of the equipment in the mechanical parking garage P (opening / closing door 10, swivel device 20, lift device, and other electric devices 40) to come to an emergency stop state (S74).
[0059] According to the first embodiment described above, the facility management system 1A, relating to a facility equipped with electric equipment including an opening and closing door, can appropriately ensure the safety of users when the opening and closing door is open and users can enter and exit the mechanical parking lot.
[0060] 《Second Embodiment》 <Configuration of the equipment management system according to the second embodiment> Figure 9 is an overall diagram showing the configuration of the equipment management system 1B according to the second embodiment of the present invention. Since the equipment management system 1B has the same configuration as the equipment management system 1A described in the first embodiment, a detailed explanation of the functional parts having the same functions will be omitted.
[0061] In the equipment management system 1B, the operation control unit 80B does not control switches 111, 112, 211, 212, 311, 312, 411, and 412, but rather the safety controller 90B does.
[0062] <Operation of the equipment management system according to the second embodiment> This section describes the processes performed by each device in the equipment management system 1B when the opening and closing door 10 in the mechanical parking garage P opens and closes. Figure 10 is a sequence diagram showing the processes performed by each device while the opening and closing door 10 transitions from the closed state to the open state.
[0063] In the initial state, the opening / closing door 10 is closed, and the first power unit 11 is stopped. Also, the first switch 111, second switch 112, third switch 211, fourth switch 212, fifth switch 311, sixth switch 312, seventh switch 411, and eighth switch 412 are open.
[0064] The safety controller 90B constantly monitors the open / closed status of the first switch 111, the second switch 112, the third switch 211, the fourth switch 212, the fifth switch 311, the sixth switch 312, the seventh switch 411, and the eighth switch 412 (S81).
[0065] When a user performs an operation to enter a vehicle into the parking lot or to take out a vehicle that is already parked at the operation reception unit 70, the operation reception unit 70 transmits an entry / exit command to the operation control unit 80B.
[0066] When the operation control unit 80B receives an entry / exit command from the operation reception unit 70 (S82), it requests the safety controller 90B to prepare for door opening operation (S83). When the safety controller 90B receives a request to prepare for door opening operation, it checks whether the switches 211, 212, 311, 312, 411, and 412 of the devices that cannot operate simultaneously with the opening / closing door 10 are in the open state (S84).
[0067] When the safety controller 90B confirms that these switches are in the open position, it sends a close command to the first switch 111 and the second switch 112 on the power supply line 110 connected to the opening door 10 (S85), closing them (S86) and preparing for the door opening operation. Once the safety controller 90B has prepared for the door opening operation, it sends an operation permission signal to the operation control unit 80B (S87).
[0068] When the operation control unit 80B receives permission to operate (S88), it transmits a door open command for the opening / closing door 10 to the power control unit 60 (S89). Based on the door open command from the operation control unit 80B, the power control unit 60 transmits an operation signal to the first power unit 11 to open the opening / closing door 10 (S90). Based on the operation signal obtained from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "stopped" to "operating" and starts the door opening operation (S91). When the door opening operation of the opening / closing door 10 starts, the detection state of the door closed detection sensor 12 switches from the ON state to the OFF state (S92).
[0069] In step S84, if the safety controller 90B recognizes that any of the switches of devices that cannot operate simultaneously with the opening / closing door 10 are in the closed state, it either controls the open switch to open it, or sends a signal to the operation control unit 80B indicating that operation is not permitted.
[0070] Figure 11 is a sequence diagram showing the processes performed by each device from the time the opening door 10 starts its opening operation until it is fully open and stops operating. When the opening door 10 operates and reaches the fully open state, the opening limit detection sensor 13 detects that the opening door 10 is fully open. When the opening limit detection sensor 13 detects that the opening door 10 is fully open, it outputs a detection ON signal to the operation control unit 80B. When the operation control unit 80B receives the detection ON signal from the opening limit detection sensor 13 (S101), it sends an operation stop command to the power control unit 60 (S102).
[0071] When the power control unit 60 receives a stop command from the operation control unit 80B, it transmits a stop signal to the first power unit 11 (S103). Based on the stop signal received from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "operating" to "stopped" and stops the door opening operation (S104).
[0072] When the operation control unit 80B transmits an operation stop command in step S102, it notifies the safety controller 90B that the door operation has ended (S105). When the safety controller 90B receives notification that the door operation has ended, it transmits an open command to the first switch 111 and the second switch 112 on the power supply line 110 (S106), and sets them to the open state (S107).
[0073] Figure 12 is a sequence diagram showing the processes performed by each device from the time the door 10 is fully opened until the door closing operation begins. After the door 10 is fully opened and the user moves the vehicle onto the pallet P, the operation reception unit 70 performs a door closing operation to close the door 10 and sends a door closing command to the operation control unit 80B, or a determination unit (not shown) that automatically determines the timing of the closing operation of the door 10 sends a door closing command to the operation control unit 80B, at which point the operation control unit 80B receives this door closing command (S111).
[0074] When the operation control unit 80B receives a door closing command, it requests the safety controller 90B to prepare for the door closing operation (S112). When the safety controller 90B receives a request to prepare for the door closing operation, it checks whether the switches 211, 212, 311, 312, 411, and 412 of the devices that cannot be operated when the opening / closing door 10 is open are in the open state (S113).
[0075] When the safety controller 90B confirms that these switches are in the open state, it sends a close command to the first switch 111 and the second switch 112 on the power supply line 110 connected to the opening / closing door 10 (S114), closing them (S115) and preparing for the door closing operation. Once the safety controller 90B has prepared for the door closing operation, it sends an operation permission signal to the operation control unit 80B (S116).
[0076] When the operation control unit 80B receives permission to operate (S117), it transmits a door closing command for the opening / closing door 10 to the power control unit 60 (S118). Based on the door closing command from the operation control unit 80B, the power control unit 60 transmits an operation signal to the first power unit 11 to close the opening / closing door 10 (S119). Based on the operation signal received from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "stopped" to "operating" and starts the door closing operation (S120).
[0077] Figure 13 is a sequence diagram showing the processes executed by the equipment when the opening / closing door 10 is closed. When the opening / closing door 10 operates and reaches the door-closed stop position, the closing limit detection sensor 14 detects that the opening / closing door 10 is fully closed. When the closing limit detection sensor 14 detects that the opening / closing door 10 is fully closed, it outputs a detection ON signal to the operation control unit 80B. When the operation control unit 80B receives the detection ON signal from the closing limit detection sensor 14 (S131), it outputs an operation stop command to the power control unit 60 (S132). When the power control unit 60 receives the operation stop command from the operation control unit 80B, it transmits a stop signal to the first power unit 11 (S133). Also, when the opening / closing door 10 is completely closed, the detection state of the door-closed detection sensor 12 switches from the OFF state to the ON state (S134).
[0078] Based on the stop signal received from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "operating" to "stopped" and stops the door opening operation (S135).
[0079] When the operation control unit 80B transmits an operation stop command in step S133, it notifies the safety controller 90B that the door operation has ended (S136). Upon receiving the notification that the door operation has ended, the safety controller 90B transmits an open command to the first switch 111 and the second switch 112 on the power supply line 110 (S137), thereby opening the door (S138).
[0080] Figure 14 is a sequence diagram showing the process when the vehicle is stowed after the opening / closing door 10 is closed. When the vehicle is stowed, the operation control unit 80B requests the safety controller 90B to prepare for the stowage operation (S141). When the safety controller 90B receives a request to prepare for the stowage operation, it sends a close command to the switches to be operated, such as the third switch 211 and fourth switch 212 connected to the slewing device 20, the fifth switch 311 and the sixth switch 312 connected to the lift device 30 (S142), and closes these switches (S143), thereby preparing for the stowage operation. Once the safety controller 90B has prepared for the stowage operation, it sends an operation permission signal to the operation control unit 80B (S144).
[0081] When the motion control unit 80B receives permission to operate (S145), it transmits a storage operation command to the power control unit 60 (S146). Based on the storage operation command from the motion control unit 80B, the power control unit 60 transmits an operation signal to the second power unit 21 to rotate the pallet P with the slewing device 20, and after the slewing operation is completed, it transmits an operation signal to the third power unit 31 to move the pallet P with the lift device 30 (S147). Based on the operation signals transmitted from the power control unit 60, the second power unit 21 executes the slewing operation of the pallet P, and the third power unit 31 executes the movement operation of the pallet P (S148).
[0082] In this embodiment as well, similar to the first embodiment, when the door closing detection sensor 12 is in the OFF state and at least one of the switches 211, 212, 311, 312, 411, and 412 is in the closed state during the operation of the opening / closing door 10, the safety controller 90B executes an emergency stop function, thereby putting the operating mechanisms of the equipment in the mechanical parking garage P (opening / closing door 10, swivel device 20, lift device, and other electric devices 40) into an emergency stop state.
[0083] Furthermore, when the door closing detection sensor 12 is turned OFF while any of the equipment other than the opening / closing door 10, such as the swivel device 20, the lift device, or other electric devices 40, is operating, the safety controller 90B executes an emergency stop function, thereby putting the operating mechanisms of the equipment in the mechanical parking garage P (opening / closing door 10, swivel device 20, lift device, and other electric devices 40) into an emergency stop state.
[0084] Furthermore, when the safety controller 90B detects that the opening detection sensor 50 is in the OFF state and the door closing detection sensor 12 is also in the OFF state, it executes an emergency stop function, thereby putting the operating mechanisms of the equipment in the mechanical parking garage P (opening / closing door 10, swivel device 20, lift device, and other electric devices 40) into an emergency stop state.
[0085] In the second embodiment described above, the safety controller 90B may, after opening the switches 111 and 112 on the power supply line 110 connected to the opening / closing door 10 in step S106, transmit an operation restriction command using the STO (Safe Torque Off) function to the power control unit 60. When the power control unit 60 receives the operation restriction command from the safety controller 90B, it restricts the operation of the first power unit 11, the second power unit 21, the third power unit 31, and the fourth power unit 41 by limiting the power supply to these devices. Subsequently, when the safety controller 90B transmits a closing command to the switches 111 and 112 in step S114, it releases the operation restriction by STO.
[0086] According to the second embodiment described above, the facility management system 1B, relating to a facility equipped with electric equipment including an opening and closing door, can appropriately ensure the safety of users when the opening and closing door is open and users can enter and exit the mechanical parking lot.
[0087] 《Third Embodiment》 <Configuration of the equipment management system according to the third embodiment> Figure 15 is an overall diagram showing the configuration of the equipment management system 1C according to the third embodiment of the present invention. Since the equipment management system 1C has the same configuration as the equipment management system 1A described in the first embodiment, a detailed explanation of the functional parts having the same functions will be omitted.
[0088] In the equipment management system 1C, the operation control unit 80C controls switches 112, 212, 312, and 412, and the safety controller 90C controls switches 111, 211, 311, and 411.
[0089] In this embodiment, the operation control unit 80C performs processing on switches 112, 212, 312, and 412 in the same manner as the safety controller 90A in the first embodiment, and the safety controller 90C performs processing on switches 111, 211, 311, and 411 in the same manner as the safety controller 90B in the second embodiment.
[0090] As a result, when the operation control unit 80C closes the switch 112 and the safety controller 90C closes the switch 111, the power supply line 110 between the power control unit 60 and the opening / closing door 10 is connected, and power is supplied to the opening / closing door 10.
[0091] Similarly, when the operation control unit 80C closes switch 212 and the safety controller 90C closes switch 211, the power supply line 210 between the power control unit 60 and the slewing device 20 is connected, and power is supplied to the slewing device 20. Also, when the operation control unit 80C closes switch 312 and the safety controller 90C closes switch 311, the power supply line 310 between the power control unit 60 and the lift device 30 is connected, and power is supplied to the lift device 30. Furthermore, when the operation control unit 80C closes switch 412 and the safety controller 90C closes switch 411, the power supply line 410 between the power supply 61 and the other motor device 40 is connected, and power is supplied to the other motor device 40.
[0092] <Operation of the equipment management system according to the third embodiment> This section describes the processes performed by each device in the equipment management system 1C when the opening and closing door 10 in the mechanical parking garage P opens and closes. Figure 16 is a sequence diagram showing the processes performed by each device while the opening and closing door 10 transitions from the closed state to the open state.
[0093] The processes of steps S151 to S154 performed within the safety controller 90C are the same as those of steps S81 to S84 described in the second embodiment, so a detailed explanation is omitted.
[0094] When the safety controller 90C confirms that each switch is in the open state in step S154, it sends a close command to the first switch 111 on the power supply line 110 connected to the opening / closing door 10 (S155), closing it (S156) and preparing for the door opening operation. Once the safety controller 90C has prepared for the door opening operation, it sends an operation permission signal to the operation control unit 80C (S157).
[0095] When the operation control unit 80C receives permission to operate (S158), it sends a closing command to the second switch 112 on the power supply line 110 (S159), and after closing it (S160), it sends a door open command for the opening / closing door 10 to the power control unit 60 (S161). Based on the door open command from the operation control unit 80C, the power control unit 60 sends an operation signal to the first power unit 11 to open the opening / closing door 10 (S162). Based on the operation signal received from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "stopped" to "operating" and starts the door opening operation (S163). When the door opening operation of the opening / closing door 10 starts, the detection state of the door closing detection sensor 12 switches from ON to OFF (S164).
[0096] Figure 17 is a sequence diagram showing the processes performed by each device from the time the opening / closing door 10 starts its opening operation until it is fully open and stops operating.
[0097] In Figure 17, the processes of steps S171 to S174 performed within the safety controller 90C are the same as the processes of steps S101 to S104 described in the second embodiment, so a detailed explanation is omitted.
[0098] When the operation control unit 80C obtains a detection ON signal from the opening limit detection sensor 13 in step S171, it sends an open command to the second switch 112 on the power supply line 110 (S175), thereby opening the switch 112 (S176).
[0099] When the operation control unit 80C transmits an open command in step S175, it notifies the safety controller 90C that the door operation has ended (S177). Upon receiving the notification that the door operation has ended, the safety controller 90C transmits an open command to the first switch 111 on the power supply line 110 (S178) and sets it to the open state (S179).
[0100] Figure 18 is a sequence diagram showing the processes performed by each device from the time the door 10 is fully opened until the door closing operation begins.
[0101] In Figure 18, the processes of steps S181 to S183 performed within the safety controller 90C are the same as the processes of steps S111 to S113 described in the second embodiment, so a detailed explanation is omitted.
[0102] When the safety controller 90C confirms that switches 211, 212, 311, 312, 411, and 412 are in the open state, it sends a close command to the first switch 111 on the power supply line 110 connected to the opening / closing door 10 (S184), closing it (S185) and preparing for the door closing operation. Once the safety controller 90C has prepared for the door closing operation, it sends an operation permission signal to the operation control unit 80C (S186).
[0103] When the operation control unit 80C receives permission to operate (S187), it sends a closing command to the second switch 112 on the power supply line 110 (S188) to close it (S189), and then sends a door closing command for the opening / closing door 10 to the power control unit 60 (S190). Based on the door opening command from the operation control unit 80C, the power control unit 60 sends an operation signal to the first power unit 11 to close the opening / closing door 10 (S191). Based on the operation signal received from the power control unit 60, the first power unit 11 of the opening / closing door 10 switches from "stopped" to "operating" to start the door closing operation (S192).
[0104] Figure 19 is a sequence diagram showing the processes executed by the device when the opening / closing door 10 is closed. In Figure 19, the processes of steps S201 to S205 executed within the safety controller 90C are the same as the processes of steps S131 to S135 described in the second embodiment, so a detailed explanation is omitted.
[0105] When the operation control unit 80C transmits a stop command in step S203, it transmits an open command to the second switch 112 on the power supply line 110 (S206), thereby opening it (S207).
[0106] When the operation control unit 80C sends an open command in step S06, it notifies the safety controller 90C that the door operation has finished (S208). When the safety controller 90C receives the notification that the door operation has finished, it sends an open command to the first switch 111 on the power supply line 110 (S209) and sets it to the open state (S210).
[0107] Figure 20 is a sequence diagram showing the process when the vehicle is stowed after the door 10 is closed. When the safety controller 90C receives a request to prepare for the door closing operation (S211), it sends a closing command to the switch to be operated, for example, the fifth switch 311 connected to the lift device 30 (S212), and sets it to the closed state (S213), thereby preparing for the stowage operation. Once the safety controller 90C has prepared for the stowage operation, it sends an operation permission signal to the operation control unit 80C (S214).
[0108] When the operation control unit 80C receives permission to operate (S215), it sends a closing command to the sixth switch 312 on the power supply line 310 (S216) to close it (S217), and then sends a storage operation command to the power control unit 60 (S218). Based on the storage operation command from the operation control unit 80C, the power control unit 60 sends an operation instruction to the third power unit 31 to move the pallet P using the lift device 30 (S219). Based on the operation signal sent from the power control unit 60, the third power unit 31 executes the movement operation of the pallet P (S220).
[0109] In this embodiment as well, similar to the first embodiment, when the door closing detection sensor 12 is in the OFF state and at least one of the switches 211, 212, 311, 312, 411, and 412 is in the closed state during the operation of the opening / closing door 10, the safety controller 90C executes an emergency stop function, thereby putting the operating mechanisms of the equipment in the mechanical parking garage P (opening / closing door 10, swivel device 20, lift device, and other electric devices 40) into an emergency stop state.
[0110] Furthermore, when the door closing detection sensor 12 is turned OFF while any of the equipment other than the opening / closing door 10, such as the swivel device 20, the lift device, or other electric devices 40, is operating, the safety controller 90C executes an emergency stop function, thereby putting the operating mechanisms of the equipment in the mechanical parking garage P (opening / closing door 10, swivel device 20, lift device, and other electric devices 40) into an emergency stop state.
[0111] Furthermore, when the safety controller 90C detects that the opening detection sensor 50 is OFF and the door closing detection sensor 12 is OFF, it executes an emergency stop function, thereby putting the operating mechanisms of the equipment in the mechanical parking garage P (opening / closing door 10, swivel device 20, lift device, and other electric devices 40) into an emergency stop state.
[0112] In the third embodiment described above, the safety controller 90C may, after opening the switch 111 on the power supply line 110 connected to the opening / closing door 10 in step S178, transmit an operation restriction command using the STO function to the power control unit 60. When the power control unit 60 receives the operation restriction command from the safety controller 90C, it restricts the operation of the first power unit 11, the second power unit 21, the third power unit 31, and the fourth power unit 41 by limiting the power supply to these devices. Subsequently, when the safety controller 90C transmits a closing command to the switch 111 in step S184, it releases the operation restriction using STO.
[0113] According to the third embodiment described above, the facility management system 1C, in relation to a facility equipped with electric equipment including an opening and closing door, can more accurately and appropriately ensure the safety of users when the opening and closing door is open and users can enter and exit the mechanical parking lot.
[0114] In the first to third embodiments described above, a single power control unit 60 is installed in the equipment management systems 1A, 1B, and 1C, and this power control unit 60 controls multiple pieces of equipment. However, multiple power control units may be provided for each piece of equipment to be controlled. For example, a power control unit for controlling the operation of the opening and closing door 10 may be provided separately from a power control unit for controlling the operation of equipment other than the opening and closing door 10, such as a slewing device and a lifting device. In this case, the first power unit 11 is connected to the power control unit for controlling the operation of the opening and closing door 10, and the second power unit 21 is connected to the power control unit for controlling the operation of equipment other than the opening and closing door 10.
[0115] While embodiments of the present invention have been described above, it is possible to modify or transform the embodiments based on the above disclosure. All components of the above embodiments, and all features described in the claims, may be individually selected and combined, provided that they do not contradict each other. [Explanation of Symbols]
[0116] 1A, 1B, 1C Equipment Management System 10 Opening and closing doors 11 1st power section 12 Door closing detection sensor 13. Opening limit detection sensor 14. Closure detection sensor 20 Swivel device 21 2nd power section 30 Lifting device 31 Third power section 40 Other motorized equipment 41 4th power section 50 Aperture detection sensor 60 Power Control Unit 61 Power supply 70 Operation reception unit 80A, 80B, 80C Operation Control Unit 90A, 90B, 90C Safety Controllers 110, 210, 310, 410 power supply line 111, 112, 211, 212, 311, 312, 411, 412 Switches 120, 220, 320 communication lines
Claims
1. A facility management system that manages multiple electrically operated devices, including opening and closing doors within a facility, A door open detection sensor for detecting the open state of the aforementioned door, A device detection sensor that detects the operating status of equipment other than the aforementioned opening and closing door, A safety controller that performs an emergency stop function to emergency stop the multiple electric devices when the door open detection sensor detects that the door is open, and the equipment detection sensor detects that equipment other than the door is set to be unable to maintain the door open simultaneously with the door being open.
2. The state in which equipment other than the aforementioned opening / closing door is set to be unable to maintain the open state simultaneously with the aforementioned opening / closing door is, The facility management system according to claim 1, wherein the switch installed on a power supply line connected to equipment other than the aforementioned opening / closing door is in a closed state, or the opening formed in the floor surface on the inside of the opening / closing door of the facility is in an open state.
3. A power control unit that drives the operating mechanisms of the plurality of electric devices, The system further comprises an operation control unit that controls the power control unit, The equipment management system according to claim 2, wherein the switch is switched between open and closed states by at least one of the operation control unit or the safety controller.
4. A safety controller is connected in a communication manner to a door open detection sensor that detects the open state of doors within a facility, and to an equipment detection sensor that detects the operating state of electric equipment other than the aforementioned doors. A facility management method comprising: when the door open detection sensor detects that the door is open, and the equipment detection sensor detects that equipment other than the door is set to be unable to maintain the door's open state simultaneously with the door's open state, an emergency stop function is executed to emergency stop multiple electric equipment, including the door.