JP6304446B2 - Elevator control system - Google Patents

Description

  The present invention relates to an elevator control system that provides support for evacuation of evacuees in a building when a fire occurs.

  When a fire occurs in a building, the evacuation elevator switches from normal operation to evacuation operation for evacuating evacuees in the building to a predetermined evacuation floor (for example, the entrance floor). Conventional evacuation elevators are equipped with sensors such as detectors on the upper and lower surfaces facing the hoistway of a car, and after the occurrence of a fire, the car is raised and lowered to switch to evacuation operation, so that smoke in the hoistway Is detected to confirm safety in the hoistway (for example, Patent Document 1).

JP 2011-190049 A

  However, in the evacuation elevator described in Patent Document 1, since the sensor is provided only in the car, it takes time to confirm safety.

  The present invention has been made to solve the above-described problems, and obtains an elevator control system that confirms safety in a hoistway in a short time when a fire occurs.

  An elevator control system according to the present invention is provided in a car of the elevator that is opposed to a hoistway of a building including an elevator, and moves up and down the hoistway, is generated by a fire, and is floating in the air in the hoistway A car detector for detecting a foreign object, a weight detector for detecting the foreign object floating in the air in the hoistway, which is provided on a counterweight that moves up and down the hoistway, and detecting the occurrence of a fire in the building And a control panel for stopping the counterweight on a floor different from the floor where the counterweight is stopped and stopping the counterweight upward from the fire occurrence floor where the occurrence of the fire is detected.

  According to the present invention, the detectors provided in the car and the counterweight detect the state in the hoistway on different floors, so the time required for safety confirmation in the hoistway can be shortened.

BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic of a building provided with the elevator control system which shows Embodiment 1 of this invention. It is a functional block diagram of the elevator control system which shows Embodiment 1 of this invention. It is a front view of the car doorway which shows Embodiment 1 of this invention. It is a hardware block diagram of the control part which shows Embodiment 1 of this invention. It is a flowchart of the control part at the time of the fire control driving | operation when the occurrence of a fire is detected in the building which shows Embodiment 1 of this invention. It is a flowchart of the control part at the time of a diagnostic driving | operation in case the fire occurrence floor which shows Embodiment 1 of this invention is higher than an intermediate floor. It is a flowchart of the control part at the time of the diagnostic driving | operation in the case where the fire occurrence floor which shows Embodiment 1 of this invention is a lower floor than an intermediate floor or an intermediate floor.

Embodiment 1 FIG.
FIG. 1 is a schematic diagram of a building 1 including an elevator control system according to this embodiment. In the building 1, for example, the first floor to the fifth floor are provided. The building 1 is provided with a hoistway 4 extending from the first floor to the fifth floor. The first floor is the lowest floor 1d located on the lowermost floor of the elevator door (not shown), and the fifth floor is the uppermost floor located on the uppermost floor of the elevator door. 1e. In addition, the hoistway 4 does not need to be configured to penetrate all floors, and for example, in FIG. 1, may be configured to penetrate from the first floor to the fourth floor. In the building 1, the third floor is an intermediate floor 1c located between the lowermost floor 1d and the uppermost floor 1e. In addition, in the building 1, when there are a plurality of floors located between the lowermost floor 1d and the uppermost floor 1e, the intermediate floor 1c is a floor located below the floor located in the middle. In the building 1, an evacuation floor 1 a is set in advance so that evacuees in the building 1 can evacuate outside the building 1 when a fire occurs. The evacuation floor 1a may be, for example, an entrance floor or other floors. In the example of FIG. 1, the evacuation floor 1a is set as the entrance floor, and the entrance floor is the lowest floor 1d, so the evacuation floor 1a and the lowest floor 1d are the same floor.

  Each floor of the building 1 is provided with a fire detector 2 that outputs a fire detection signal when the occurrence of a fire is detected. The fire detection signal may be output directly from each fire detector 2 to the elevator control panel 10 or output from each fire detector 2 to a building management system that monitors equipment in the building 1. May be transferred to the control panel 10 or other configurations.

  Here, when a fire occurs on the fourth floor, the fourth floor becomes the fire occurrence floor 1b. In addition, when a fire occurs on floors other than the 4th floor, the floor where the fire has occurred is the fire occurrence floor 1b. Further, when a fire occurs on a plurality of floors, there are a plurality of fire occurrence floors 1b.

  A diagnostic operation switch 3 is provided on the evacuation floor 1a. The diagnostic operation switch 3 is operated when starting a diagnostic operation described later when any of the fire detectors 2 detects the occurrence of a fire. When operated, the diagnostic operation switch 3 outputs a diagnostic operation start signal to the control panel 10. The diagnostic operation switch 3 is, for example, a springback type switch, which is closed when operated and outputs a diagnostic operation start signal to the control panel 10, and returns to an open state when the operation is released to start diagnostic operation. Stop signal output.

  In the hoistway 4, the car 5 and the counterweight 6 are supported by a rope 7. The rope 7 is wound around the hoisting machine 8 and the deflecting wheel 9. When the control panel 10 that controls the operation of the elevator rotates the hoisting machine 8, the rope 7 moves, and the car 5 and the counterweight 6 move up and down.

  A car detector 11 is provided in the car 5 at a position facing the hoistway 4. The counterweight 6 is provided with a weight detector 12. When any of the fire detectors 2 detects the occurrence of a fire, the car detector 11 and the weight detector 12 are foreign matters generated by a fire and floating in the air in the hoistway 4 in a diagnostic operation described later, for example, , Detect smoke. The car detector 11 is connected to the control panel 10 by a car transmission cable 13. The weight detector 12 is connected to the control panel 10 by a weight transmission cable 14. The car transmission cable 13 includes a power cable 13a used for power supply and a signal cable 13b used for signal transmission. The weight transmission cable 14 includes a power cable 14a used for power supply and a signal cable 14b used for signal transmission. In FIG. 1, the car detector 11 is provided on the upper surface of the car 5, but is not limited thereto, and may be provided on the lower surface of the car 5, for example.

  FIG. 2 is a functional block diagram of the elevator control system in this embodiment. The elevator control system includes a fire detector 2, a diagnostic operation switch 3, a car 5, a control panel 10, a car detector 11, a weight detector 12, and a driving device 15.

  The control panel 10 includes a control unit 101, a power supply 102, a car relay switch 103, and a weight relay switch 104. The control unit 101 is connected to the fire detector 2, the diagnostic operation switch 3, the car 5, the car relay switch 103, the weight relay switch 104, and the driving device 15. The control unit 101 is connected to the detection unit 11b of the car detector 11 through the signal cable 13b. Further, the control unit 101 is connected to the detection unit 12b of the weight detector 12 via the signal cable 14b. The power source 102 is connected to the car relay switch 103 and the weight relay switch 104. The car relay switch 103 is connected to the power source 11a of the car detector 11 through the power cable 13a. The weight relay switch 104 is connected to the power source 12a of the weight detector 12 via the power cable 14a.

  When a fire occurs in the building 1, the control unit 101 controls the drive device 15 to rotate the hoisting machine 8 in each operation mode of fire control operation, diagnostic operation, and evacuation operation, thereby operating the elevator. To control. Here, the fire control operation is an operation mode in which an evacuee who is in the car 5 is evacuated to the evacuation floor 1a when any of the fire detectors 2 detects the occurrence of a fire. The diagnosis operation is an operation mode for detecting smoke in the hoistway 4 and diagnosing whether the evacuation operation can be performed safely. The diagnostic operation starts when the diagnostic operation switch 3 is operated after the fire control operation is completed. The evacuation operation is an operation mode in which, after the diagnosis operation is completed, an evacuee who is on the floor who has determined that the elevator can be used as an evacuation means in the diagnosis operation is evacuated to the evacuation floor using the elevator.

  The control unit 101 switches the car relay switch 103 and the weight relay switch 104 ON / OFF. The control unit 101 switches the car relay switch 103 to ON to supply power from the power source 102 to the power source 11a of the car detector 11 via the car relay switch 103 and the power cable 13a. When the control unit 101 switches the car relay switch 103 to OFF, the power supply to the power source 11a is cut off. Similarly, the control unit 101 switches the weight relay switch 104 to ON to supply power from the power source 102 to the power source 12a of the weight detector 12 via the weight relay switch 104 and the power cable 14a. When switching the weight relay switch 104 to OFF, the control unit 101 cuts off the power supply to the power source 12a.

  The car 5 includes a car button 51, a car door driving device 52, and a car speaker 53. A plurality of car buttons 51 are provided in the car 5 and are operated when an evacuation guide or a firefighter who guides evacuation of the refugee performs car call registration during the evacuation operation. The car door driving device 52 opens and closes the car door 54 described later in response to a door open / close command signal output from the control unit 101. The car speaker 53 is a car notification device, and is provided in the car 5, and evacuates an evacuee in the car 5 by an announcement control signal output from the control unit 101 during fire control operation and evacuation operation. Announce announcements to guide you.

  The car detector 11 includes a power source 11a and a detection unit 11b. When power is supplied from the power source 102, the power source 11a operates the car detector 11. The detection unit 11b detects smoke in the hoistway 4 when the car detector 11 is operated, and outputs the detection result to the control unit 101 via the signal cable 13b.

  The weight detector 12 includes a power source 12a and a detector 12b. The power source 12 a operates the weight detector 12 when power is supplied from the power source 102. The detection unit 12b detects smoke in the hoistway 4 when the weight detector 12 is operated, and outputs the detection result to the control unit 101 via the signal cable 14b.

  The driving device 15 is an inverter that supplies electric power to the hoisting machine 8 and rotationally drives the hoisting machine 8.

  FIG. 3 is a front view of the car 5 doorway in this embodiment. In the car 5, a car button 51, a car speaker 53, and a car door 54 are provided. The car door 54 is provided at the doorway of the car 5 and is moved by the car door driving device 52 described above to open and close the doorway of the car 5.

  FIG. 4 is a hardware configuration diagram of the control unit 101 in this embodiment. The control unit 101 includes a CPU 101a, a ROM 101b, a RAM 101c, an input circuit 101d, and an output circuit 101e. The CPU 101a is a central processing unit. The ROM 101b is a read memory and stores an operation program for executing each operation mode. The RAM 101c is a memory that stores data necessary for the CPU 101a to execute an operation program stored in the ROM 101b. The input circuit 101 d is connected to the fire detector 2 and the signal cables 13 b and 14 b and converts the input signal into a signal corresponding to the control unit 101. The output circuit 101e is connected to the car relay switch 103, the weight relay switch 104, and the driving device 15, and converts the output signal into a signal corresponding to the output destination device.

  Each operation mode is implemented by the CPU 101a executing an operation program stored in the ROM 101b. The floor from which the fire detector 2 detects the occurrence of a fire, the detection results output by the car detector 11 and the counterweight detector 12, and the diagnosis results based on the detection results are stored in the RAM 101c. Input signals from the fire detector 2, the car button 51, and the detection units 11b and 12b to the control unit 101 are converted into signals corresponding to the control unit 101 by the input circuit 101d. Output signals from the control unit 101 to the car speaker 53, the car relay switch 103, and the weight relay switch 104 are converted into signals corresponding to the output destination device by the output circuit 101e.

  Next, the operation of the control unit 101 when the fire detector 2 detects the occurrence of a fire will be described based on FIGS. FIG. 5 is a flowchart of the control unit 101 at the time of fire control operation when a fire occurrence is detected in the building 1 in this embodiment. FIG. 6 is a flowchart of the control unit 101 at the time of diagnostic operation when the fire occurrence floor 1b is above the intermediate floor 1c. FIG. 7 is a flowchart of the control unit 101 at the time of diagnosis operation when the fire occurrence floor 1b is below the intermediate floor 1c or the intermediate floor 1c.

  In FIG. 5, in step (hereinafter referred to as “S”) 1, the control unit 101 determines whether the fire detector 2 has detected the occurrence of a fire. If a fire occurrence is detected, the process proceeds to S2. If a fire occurrence is not detected, the process returns to S1.

  In S2, the control unit 101 switches the elevator operation mode from the normal operation to the fire control operation mode. When the control unit 101 switches the operation mode, the process proceeds to S3.

  In S3, the control unit 101 moves the car 5 to the evacuation floor 1a. When the control unit 101 outputs a control signal for moving the car 5 to the driving device 15, the process proceeds to S4.

  In S4, the control unit 101 determines whether the car 5 has arrived at the evacuation floor 1a. If the car 5 has arrived at the evacuation floor 1a, the process proceeds to S5. If the car 5 has not arrived at the evacuation floor 1a, the process returns to S4.

  In S <b> 5, the control unit 101 outputs a door opening command signal for opening the car door 54 to the car door driving device 52. When the control unit 101 outputs the door opening command signal, the process proceeds to S6.

  In S <b> 6, the control unit 101 sends an announcement from the car speaker 53 to the evacuees who are in the car 5. For example, the control unit 101 sends an announcement such as “Please evacuate because a fire has occurred” from the car speaker 53. When the control unit 101 sends an announcement from the car speaker 53, the process proceeds to S7.

  In S7, the control unit 101 determines whether a certain time has elapsed since the door opening command signal was output. If the predetermined time has elapsed, the process proceeds to S8, and if not, the process returns to S6.

  In S <b> 8, the control unit 101 outputs a door closing command signal for closing the car door 54 to the car door driving device 52. When the control unit 101 outputs a door closing command signal, the fire control operation flow is terminated.

  Next, based on FIG. 6, operation | movement of the control part 101 at the time of diagnostic operation in case the fire occurrence floor 1b is above the intermediate floor 1c is demonstrated. When the fire occurs in the building 1, the control unit 101 receives the fire detection signal output from the fire detector 2, and determines whether the fire occurrence floor 1 b is above the intermediate floor 1 c from the fire detection signal. to decide. When the fire occurrence floor 1b is above the intermediate floor 1c, the control unit 101 executes the diagnosis operation illustrated in FIG. 6 when the diagnosis switch 3 is operated after the fire control operation illustrated in FIG. 5 is completed.

  In FIG. 6, in S <b> 11, the control unit 101 determines whether a diagnostic operation start signal has been received from the diagnostic operation switch 3 provided on the evacuation floor 1 a. When the diagnostic operation start signal is received, the process proceeds to S12, and when the diagnostic operation start signal is not received, the process returns to S11.

  In S12, the control unit 101 moves the car 5 so that the counterweight 6 is positioned on the fire occurrence floor 1b. For example, if the building 1 is from the first floor to the fifth floor and the fourth floor is the fire occurrence floor 1b, the control unit 101 sets the car 5 so that the counterweight 6 is located on the fourth floor which is the fire occurrence floor 1b. Move to the second floor. When the control unit 101 moves the car 5, the process proceeds to S13.

  In S13, the control unit 101 switches the car relay switch 103 and the weight relay switch 104 to OFF. Thereby, the control unit 101 cuts off the power supply to the car detector 11 and the weight detector 12. When the control unit 101 switches the car relay switch 103 and the weight relay switch 104 to OFF, the process proceeds to S14.

  In S <b> 14, the control unit 101 determines whether detection results have been received from the detection unit 11 b of the car detector 11 and the detection unit 12 b of the weight detector 12. When the detection results are not received from the detection units 11b and 12b, the process proceeds to S15, and when the detection results are received from the detection units 11b and 12b, the process returns to S14.

  In S15, the control unit 101 switches the car relay switch 103 and the weight relay switch 104 to ON. As a result, the control unit 101 causes the power source 102 to supply power to the car detector 11 and the weight detector 12. When the control unit 101 switches the car relay switch 103 and the weight relay switch 104 to ON, the process proceeds to S16.

  In S16, the control unit 101 stores the detection results output from the detection units 11b and 12b. When the control unit 101 stores the detection result, the process proceeds to S17.

  In S <b> 17, the control unit 101 determines whether the floor where the car 5 and the counterweight 6 are stopped can be targeted for evacuation operation based on the detection result stored in S <b> 16, and stores the determination result. When the control unit 101 stores the determination result, the process proceeds to S18.

  In S <b> 18, the control unit 101 determines whether it has detected that the car 5 has arrived at the lowest floor 1 d of the building 1. If the car 5 has arrived at the lowest floor 1d, the flow is terminated, and if the car 5 has not arrived at the lowest floor 1d, the process proceeds to S19.

  In S19, the control unit 101 moves the car 5 to the next lower floor. When the control unit 101 moves the car, the process returns to S13. The control unit 101 repeats the processes from S13 to S19 until the car 5 arrives at the lowest floor 1d.

  When the car 5 arrives at the lowest floor 1d, the control unit 101 ends the flow of the diagnostic operation. When the control unit 101 ends the diagnostic operation flow, the control unit 101 switches the operation mode to the evacuation operation.

  Next, based on FIG. 7, operation | movement of the control part 101 at the time of a diagnostic driving | operation in case the fire occurrence floor 1b is lower than the intermediate floor 1c or the intermediate floor 1c is demonstrated. When the fire occurs in the building 1, the control unit 101 receives the fire detection signal output from the fire detector 2, and determines whether the fire occurrence floor 1 b is above the intermediate floor 1 c from the fire detection signal. to decide. When the fire occurrence floor 1b is below the intermediate floor 1c or the intermediate floor 1c, that is, when the fire occurrence floor 1b is below the intermediate floor 1c, the control unit 101 ends the fire control operation shown in FIG. When the diagnostic switch 3 is operated, the diagnostic operation shown in FIG. 7 is executed.

  In FIG. 7, the process of S21 is the same as the process of S11 in FIG.

  In S <b> 22, the control unit 101 moves the car 5 to the intermediate floor 1 c of the building 1. For example, if the building 1 has floors 1 to 5 and the third floor is the fire occurrence floor 1b, the control unit 101 moves the car 5 to the third floor. Or the building 1 has the 1st floor to the 6th floor, and when the second floor is the fire occurrence floor 1b, the control unit 101 moves the car 5 to the third floor. When the control unit 101 moves the car, the process proceeds to S23.

  The processing from S23 to S29 is the same as the processing from S13 to S19 in FIG.

  When the diagnosis operation flow shown in FIG. 7 is completed, the control unit 101 switches the operation mode to the evacuation operation as in the case of FIG.

  When the diagnosis operation shown in FIG. 6 or FIG. 7 is completed, the control unit 101 executes an evacuation operation for guiding an evacuee left in the building 1 to the evacuation floor 1a. In evacuation operation, when a button corresponding to a floor of the car button 51 that is determined not to be an object of evacuation operation in S17 or S27 is operated, the control unit 101 performs car call registration by operating the car button 51. To disable.

  As described above, the elevator control system according to this embodiment is different in the hoistway 4 between the car detector 11 provided in the car 5 and the weight detector 12 provided in the counterweight 6 when a fire occurs. Since smoke on the floor is detected, the time required for the diagnostic operation for confirming safety in the hoistway 4 can be shortened.

  Further, in the elevator control system in this embodiment, when the fire occurrence floor 1b is above the intermediate floor 1c, smoke is detected by the weight detector 12 above the fire occurrence floor 1b, so that smoke enters the car 5. This makes it possible to perform diagnostic driving more safely.

  Moreover, the elevator control system in this embodiment is provided in the elevator car 5 that faces the hoistway 4 of the building 1 equipped with the elevator and moves up and down the hoistway 4, and is generated in the air in the hoistway 4 due to a fire. A car detector 11 that detects foreign matter floating in the hoistway 4 and a weight detector 12 that is provided on a counterweight 6 that moves up and down the hoistway 4 and detects foreign matter that floats in the air in the hoistway 4. Prepare. Furthermore, when the occurrence of a fire is detected in the building 1, the elevator control system stops the counterweight 6 upward from the floor where the fire has been detected and is different from the floor where the counterweight 6 is stopped. A control panel 10 for stopping the car 5 on the floor is provided. Thereby, since the elevator control system detects the state in the hoistway 4 in different floors by the car detector 11 and the weight detector 12, the time required for safety confirmation in the hoistway 4 can be shortened.

  In the elevator control system according to this embodiment, the control panel 10 executes a diagnostic operation for determining whether the elevator can be used for each floor based on the detection results of the car detector 11 and the weight detector 12. To do. Thereby, the elevator control system can judge whether an elevator can be used as an evacuation means for every floor.

  Moreover, in the elevator control system in this embodiment, the control panel 10 is located above the fire occurrence floor 1b in the diagnostic operation when the fire occurrence floor 1b is above the intermediate floor 1c located in the center of the building 1. The foreign material floating in the air in the hoistway 4 is detected by the weight detector 12. Thereby, since an elevator control system detects smoke above the fire occurrence floor 1b with a weight detector, there is no fear of smoke entering the car 5 and the smoke in the hoistway 4 can be detected more safely.

  Moreover, in the elevator control system in this embodiment, the control panel 10 is in the air in the hoistway 4 above the intermediate floor 1c in the diagnostic operation when the fire occurrence floor 1b is below the intermediate floor 1c. The weight detector 12 detects foreign matter floating in As a result, the elevator control system detects smoke in the hoistway 4 where smoke tends to collect with the weight detector 12, so that the amount of smoke entering the car 5 can be reduced, and the hoistway 4 can be safer. Can detect smoke.

  Further, in the elevator control system according to this embodiment, the control panel 10 performs the diagnosis when the car detector 11 detects a foreign object floating in the air in the hoistway 4 on the lowest floor in the diagnostic operation. The evacuation operation which guides the evacuees in the building 1 after driving to the predetermined evacuation floor 1a with an elevator is executed, and the floor which is judged to be usable during the diagnosis operation is the target of the evacuation operation. . Thereby, since the elevator control system can control the evacuation operation for a safe floor after completion of the diagnostic operation, the evacuee can be guided to the evacuation floor 1a more safely.

  In the elevator control system according to this embodiment, the control panel 10 stops the car 5 and resets the car detector 11 and the weight detector 12 in the diagnostic operation, and then in the air in the hoistway 4. To detect foreign matter floating on the surface. Thus, the elevator control system resets the car detector 11 and the weight detector 12 for each floor by supplying power again after cutting off the power supply to the car detector 11 and the weight detector 12. Therefore, smoke can be detected without being affected by the detection result on the floor detected earlier.

  In the elevator control system according to this embodiment, when a fire occurs in the building 1, the control panel 10 moves the car 5 to the evacuation floor 1 a to evacuate the refugees in the car 5. After that, the diagnostic operation is executed. As a result, the elevator control system detects smoke in the hoistway 4 after guiding the evacuees to the evacuation floor 1a when there is an evacuee in the car 5 at the time of the fire, so the hoistway is safer The smoke in 4 can be detected.

  Further, the elevator control system in this embodiment includes a diagnostic operation switch 3, and the control panel 10 performs a diagnostic operation when the diagnostic operation switch 3 is operated when a fire occurrence is detected in the building 1. Control. Thereby, since the evacuation guide or firefighter confirms that there is no refugee in the car 5, the elevator control system can start the diagnostic operation, so that the smoke in the hoistway 4 can be detected more safely.

  In addition, the elevator control system according to this embodiment includes a car speaker 53 provided in the car 5, and when the car 5 arrives at the evacuation floor 1 a, the control panel 10 is provided for refugees in the car 5. The car speaker 53 is informed of the evacuation guidance. Thereby, when the car 5 arrives at the evacuation floor 1a, the elevator control system sends an announcement for guiding the evacuation to the refugees in the car 5, so that the evacuation of the refugees can be supported.

  The elevator control system in this embodiment detects smoke and determines the floor to be evacuated from the detected result. However, the present invention is not limited to this. For example, a configuration that detects harmful gas may be used. It is good also as a structure of.

  When there are a plurality of fire occurrence floors 1b above the intermediate floor 1c of the building 1, in S11 of FIG. 6, the control unit 101 determines that the fire occurrence floor 1b closest to the intermediate floor 1c among the plurality of fire occurrence floors 1b. The car 5 is moved so as to be located at.

  When the fire occurrence floor 1b exists above the intermediate floor 1c of the building 1 and below the intermediate floor 1c, the control unit 101 controls the diagnostic operation based on the flow shown in FIG.

  In the diagnostic operation shown in FIG. 6, the control unit 101 first moves the car 5 so that the counterweight 6 is located on the fire occurrence floor, and detects smoke while lowering the car 5. Not limited to this, first, the car 5 may be moved to the lowest floor 1d, and smoke may be diagnosed while raising the car 5 until the counterweight 6 is positioned on the fire occurrence floor.

  In the diagnostic operation shown in FIG. 7, the control unit 101 first moves the car 5 to the intermediate floor 1c and detects smoke while lowering the car 5. However, the present invention is not limited to this. It is good also as a structure which diagnoses smoke, moving to the lowest floor 1d and raising the cage | basket | car 5 to the intermediate floor 1c.

  In the diagnostic operation shown in FIG. 6, the control unit 101 detects the smoke in all the floors above the fire occurrence floor 1b by the weight detector 12, but not limited to this, for example, the fire occurrence floor 1b It is good also as a structure which detects only smoke.

  In the diagnostic operation shown in FIG. 7, the control unit 101 detects the smoke on all the floors above the intermediate floor 1c with the weight detector 12, but not limited to this, for example, on the fire occurrence floor 1b A configuration in which only smoke is detected by the car detector 11 or the weight detector 12 may be adopted.

  The diagnostic operation switch 3 is provided at the landing of the evacuation floor 1a. However, the present invention is not limited to this. For example, the diagnosis operation switch 3 may be provided on a plurality of floors other than the evacuation floor 1a. It is good also as a structure to be made, and it is good also as another structure. Alternatively, the diagnosis operation switch 3 is not provided, and the control unit 101 may automatically start the diagnosis operation when the fire control operation is finished.

  In the fire control operation shown in FIG. 5, the control unit 101 outputs the door closing command signal after a certain time has elapsed since the car 5 was moved to the evacuation floor 1 a and the door opening command signal was output. For example, when the number of passengers detector is provided in the car 5 and when it is detected that all the refugees who are in the car 5 get off in the evacuation floor 1a, the control unit 101 outputs a door closing command signal. It is good also as composition to do. Here, the passenger number detector may be configured to detect the number of passengers from the load of the car 5, for example, or may be configured to detect the number of passengers from an image acquired by a camera provided in the car, Other configurations may be used.

  In addition, when not providing a landing door in all the floors like a shuttle elevator, the control part 101 is good also considering the floor without a landing door as the object of a diagnostic driving | operation.

  The car speaker 53 is provided in the car 5 as a car notification device. However, the present invention is not limited to this. For example, a display is provided in the car 5 and a message for inducing evacuation is displayed on the display. Alternatively, other configurations may be used.

  1 building, 1a evacuation floor, 1b fire occurrence floor, 1c middle floor, 1d bottom floor, 2 fire detector, 3 diagnostic operation switch, 4 hoistway, 5 car, 53 car speaker, 6 counterweight, 7 rope, 8 Hoisting machine, 9 Bending car, 10 Control panel, 101 Control unit, 102 Power supply, 103 Car relay switch, 104 Weight relay switch, 11 Car detector, 12 Weight detector, 13 Car transmission cable, 14 Weight transmission cable, 15 Drive device

Claims (9)

A car detector that is disposed on the elevator car that moves up and down the hoistway facing the hoistway of a building including an elevator, detects a foreign object that is generated by a fire and floating in the air in the hoistway;
A weight detector that is provided on a counterweight that ascends and descends the hoistway and detects the foreign matter floating in the air in the hoistway;
When a fire occurrence is detected in the building, the counterweight is stopped upward from the fire occurrence floor where the fire occurrence is detected, and the car is stopped on a floor different from the floor where the counterweight is stopped An elevator control system comprising a control panel.   2. The elevator control system according to claim 1, wherein the control panel executes a diagnostic operation for determining whether or not the elevator can be used for each floor based on detection results of the car detector and the weight detector.   The control panel is located at the center between the uppermost floor where the fire occurrence floor is located above the elevator floor and the lowest floor where the floor is located. 3. The elevator according to claim 2, wherein in the diagnosis operation, the weight detector detects the foreign matter floating in the air in the hoistway above the fire occurrence floor in the case of above the intermediate floor located. Control system.   When the fire occurrence floor is below the intermediate floor, the control panel detects the foreign matter floating in the air in the hoistway above the intermediate floor in the weight detector in the diagnostic operation. The elevator control system according to claim 2 or claim 3 to be executed.   When the car detector detects the foreign matter floating in the air in the hoistway on the lowest floor in the diagnostic operation, the control panel terminates the diagnostic operation and detects the evacuees in the building. The evacuation operation which guides to a predetermined evacuation floor with an elevator is executed, and a floor which is determined to be usable in the elevator during the diagnostic operation is set as a target for the evacuation operation. The elevator control system according to item.   The control panel is configured to detect the foreign matter floating in the air in the hoistway after stopping the car and resetting the car detector and the weight detector in the diagnostic operation. The elevator control system according to any one of claims 5.   The said control panel performs the said diagnostic driving | operation after moving the said car to the said evacuation floor and evacuating the refugee in the said car, when a fire occurs in the said building. The elevator control system according to any one of 6. It has a diagnostic operation switch,
The elevator control system according to any one of claims 2 to 7, wherein the control panel controls the diagnostic operation when the diagnostic operation switch is operated when a fire occurrence is detected in the building. . A car notifying device provided in the car,
The elevator according to any one of claims 1 to 8, wherein when the car arrives at the evacuation floor, the control panel causes the car notifying device to notify an evacuee in the car of evacuation guidance. Control system.

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