JP2016088678A - Elevator system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator system capable of upgrading safety in evacuation to be performed using an evacuation stair in a case of a fire.SOLUTION: An elevator system includes plural safety detection units that are disposed on respective floors of an evacuation stair of a building or on corridors on the respective floors of the building leading to the evacuation stair, and that detect safety in evacuation to be performed using the evacuation stair, plural notification units that are associated with the safety detection units, are disposed on the respective floors of the evacuation stair or on the corridors on the respective floors of the building leading to the evacuation stair, and notify information, and a control unit that operates a car of an elevator to allow the car to reach an evacuation floor in a case of a fire, designates floors, on which safety is not ensured, as rescue floors on the basis of results of detection by the plurality of safety detection units, allows the notification unit, which is disposed at an unsafe position, to notify information which prompts evacuation to be performed using the car, and operates and evacuates the car among the rescue floors and evacuation floor.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an elevator system.

  Patent document 1 discloses an elevator system. According to the elevator system, it is possible to evacuate by actively using the elevator car in the event of a fire.

JP 2013-23370 A

  However, the thing of patent document 1 is not related to evacuation using an evacuation staircase. For this reason, the safety of evacuation using evacuation stairs in the event of a fire is not considered.

  The present invention has been made to solve the above-described problems. An object of the present invention is to provide an elevator system that can improve safety of evacuation using an evacuation staircase in the event of a fire.

  The elevator system according to the present invention is provided on each floor in an evacuation staircase of a building provided with an elevator or in a corridor to each evacuation staircase on each floor of the building, and uses the evacuation stairs when a fire occurs. A plurality of safety detection devices for detecting safety of evacuation, and corresponding to each of the plurality of safety detection devices, provided in each corridor to each floor in the evacuation stairs or to the evacuation stairs in each floor of the building A plurality of informing devices for informing information, and when the fire occurs, the elevator car is caused to return to the evacuation floor, and the unsafe floor is rescued based on the detection results of the plurality of safety detecting devices. Set to, let the notification device provided at an unsafe location notify the evacuation information using the car, and let the car evacuate between the rescue floor and the evacuation floor A control device for rolling, with a.

  According to these inventions, the unsafe floor is set as the rescue floor. In an unsafe position, the notification device notifies information prompting evacuation using a car. The car performs evacuation operation between the rescue floor and the evacuation floor. For this reason, the safety of evacuation using the evacuation stairs can be improved in the event of a fire.

It is a block diagram of the building in which the elevator system in Embodiment 1 of this invention was provided. 1 is a block diagram of an elevator system according to Embodiment 1 of the present invention. It is a flowchart explaining the control procedure of the elevator system in Embodiment 1 of this invention. It is a flowchart explaining the control procedure of the elevator system in Embodiment 1 of this invention.

  A mode for carrying out the invention will be described with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the part which is the same or corresponds in each figure. The overlapping explanation of the part is appropriately simplified or omitted.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram of a building provided with an elevator system according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the building includes an escape staircase 1. The evacuation stairs 1 are provided from the lowest floor to the top floor of the building. The evacuation floor 2 is set to a floor where it is easy to evacuate outside the building. For example, the evacuation floor 2 is set to the first floor. For example, the disaster prevention center device 3 is provided inside or outside a building.

  The building is equipped with an elevator system. The elevator system includes a hoistway 4. The hoistway 4 penetrates each floor of the building. The plurality of cars 5 are provided inside the hoistway 4. In FIG. 1, only one car 5 is shown. A plurality of halls 6 are provided on each floor of the building. Each of the landings 6 faces the hoistway 4. For example, the machine room 7 is provided above the hoistway 4. For example, the control device 8 is provided inside the machine room 7.

  The plurality of fire detection devices 9 are provided in each part of the building. For example, the fire detection device 9 is provided inside the hoistway 4. For example, the fire detection device 9 is provided in each of the halls 6. For example, the fire detection device 9 is provided in a corridor from the escape staircase 1 to the landing 6 on each floor.

  The plurality of safety detection devices 10 are provided in each part of the building. For example, the plurality of safety detection devices 10 are provided on each floor in the escape stairs 1. For example, the plurality of safety detection devices 10 are provided in a corridor up to the escape staircase 1 on each floor.

  The some alerting | reporting apparatus 11 is provided in each part of a building. For example, the notification device 11 is provided corresponding to the safety detection device 10. For example, the notification device 11 is provided on each floor in the escape stairs 1. For example, the notification device 11 is provided in a corridor up to the escape staircase 1 on each floor. The notification device 11 is provided so as to be able to notify information using display or sound based on an instruction from the outside.

Next, operation | movement of the elevator system at the time of a fire is demonstrated using FIG.
FIG. 2 is a block diagram of the elevator system according to Embodiment 1 of the present invention.

  As shown in FIG. 2, on each floor in the evacuation staircase 1, the safety detection device 10 includes a flow rate detector 10a, an oxygen amount detector 10b, a smoke concentration detector 10c, and the like. In the hallway to the evacuation stairs 1 on each floor, the safety detection device 10 includes a flow rate detector 10d and the like.

  When any of the fire detection devices 9 detects a fire, the disaster prevention center device 3 causes all the notification devices 11 inside the building to notify the evacuation instruction. The disaster prevention center device 3 confirms safety against fire at the hall 6 on each floor. The disaster prevention center device 3 checks the safety of the machine room 7 and the hoistway 4 against fire. The disaster prevention center device 3 confirms the safety between the evacuation stairs 1 and the landing 6.

  The safety detection device 10 detects safety of evacuation using the evacuation stairs 1. For example, the flow rate detector 10a detects the amount of movement of people on each floor in the escape stairs 1. For example, the oxygen amount detector 10b detects the oxygen amount of each floor in the escape staircase 1. For example, the smoke density detector 10c detects the smoke density of each floor in the escape staircase 1. For example, the flow rate detector 10d detects the amount of movement of people in the hallway to the escape staircase 1 on each floor.

  The disaster prevention center device 3 receives information corresponding to the safety of evacuation using the evacuation stairs 1 from the safety detection device 10. The disaster prevention center device 3 transmits various safety confirmation results and information corresponding to the safety to the control device 8.

  The control device 8 determines the safety of evacuation using the evacuation stairs 1 based on the information from the fire detection device 9 and the information from the disaster prevention center device 3. When it is determined that evacuation using the evacuation stairs 1 is safe, the control device 8 does not perform the evacuation operation using the car 5. When it is determined that the evacuation using the evacuation operation is not safe, the control device 8 performs the evacuation operation using the car 5.

Next, the control procedure of the elevator system when a fire occurs will be described with reference to FIGS. 3 and 4.
3 and 4 are flowcharts illustrating the control procedure of the elevator system according to Embodiment 1 of the present invention. The flow of FIG. 3 and FIG. 4 is repeatedly performed at a preset interval.

  In step S1, the disaster prevention center apparatus 3 determines whether or not a fire has occurred. If no fire has occurred in step S1, the operation ends. If a fire has occurred in step S1, the process proceeds to step S2.

  In step S <b> 2, the disaster prevention center device 3 instructs the control device 8 to return to the evacuation floor 2 for all the cars 5. Then, it progresses to step S3 and the disaster prevention center apparatus 3 instruct | indicates the evacuation to the evacuation floor 2 using the evacuation stairs 1 to all the persons inside the building. Then, it progresses to step S4 and the disaster prevention center apparatus 3 instruct | indicates the operation stop at the evacuation floor 2 with respect to all the cars 5 to the control apparatus 8. FIG. Then, it progresses to step S5 and the disaster prevention center apparatus 3 instruct | indicates the start of evacuation using the evacuation staircase 1 to all the persons inside the building.

  Then, it progresses to step S6 and the disaster prevention center apparatus 3 determines whether the value of the flow rate of each floor in the escape staircase 1 is more than a regulation value. If the value of the flow rate of each floor in the evacuation staircase 1 is greater than or equal to the specified value in step S6, the process proceeds to step S7. In step S7, the disaster prevention center apparatus 3 determines whether or not the value of the oxygen amount on each floor in the evacuation staircase 1 is equal to or greater than a specified value. When the value of the oxygen amount on each floor in the escape staircase 1 is greater than or equal to the specified value in step S7, the process proceeds to step S8.

  In step S8, the disaster prevention center apparatus 3 determines whether or not the smoke density value of each floor in the evacuation staircase 1 is equal to or less than a specified value. When the smoke density value of each floor in the evacuation staircase 1 is not more than the specified value in step S8, the process proceeds to step S9. In step S9, the disaster prevention center apparatus 3 determines whether or not the value of the flow rate in the hallway to the evacuation stairs 1 on each floor is equal to or greater than a specified value.

  If the value of the flow rate in the corridor up to the evacuation staircase 1 on each floor is greater than or equal to the specified value in step S9, the process proceeds to step S10. In step S10, the disaster prevention center device 3 instructs all persons inside the building to continue evacuation using the evacuation stairs 1. Thereafter, the operation ends.

  If the value of the flow rate of any floor in the evacuation staircase 1 is less than the specified value in step S6, the process proceeds to step S11. In step S11, the disaster prevention center apparatus 3 grasps the position where the traffic jam has occurred.

  If the value of the oxygen amount on any floor in the evacuation staircase 1 is less than the specified value in step S7, the process proceeds to step S12. In step S12, the disaster prevention center apparatus 3 grasps a position where the amount of oxygen is small.

  When the smoke density value of any floor in the evacuation staircase 1 is larger than the specified value in step S8, the process proceeds to step S13. In step S13, the disaster prevention center apparatus 3 grasps a position where the smoke concentration is high.

  If the value of the flow rate in any corridor up to the evacuation staircase 1 on each floor is less than the specified value in step S9, the process proceeds to step S14. In step S14, the disaster prevention center apparatus 3 grasps the corridor where the traffic jam occurs.

  After step S11 to step S14, the process proceeds to step S15. In step S15, the disaster prevention center apparatus 3 notifies the control apparatus 8 of an unsafe position.

  Then, it progresses to step S16 and the control apparatus 8 determines whether all the cars 5 can be drive | operated without being influenced by a fire. If all the cars 5 cannot be operated without being affected by fire in step S16, the operation ends. If all elevators can be operated without being affected by fire in step S16, the process proceeds to step S17.

  In step S17, the control device 8 sets an unsafe floor as a rescue floor. The control device 8 determines whether it is safe from the rescue hall 6 to the entrance of the evacuation stairs 1. If it is not safe from the rescue floor landing 6 to the entrance of the escape staircase 1 in step S17, the operation ends. If it is safe from the rescue floor 6 to the entrance of the evacuation stairs 1 in step S17, the process proceeds to step S18.

  In step S18, the control device 8 finally determines the rescue floor. Then, it progresses to step S19 and the control apparatus 8 runs all the cars 5 to a rescue floor. Then, the control apparatus 8 makes all the cage | basket | cars 5 stand open at a rescue floor. Then, it progresses to step S20 and the control apparatus 8 determines whether the unsafe position is the evacuation staircase 1 or not.

  If the unsafe position is the evacuation staircase 1 in step S20, the process proceeds to step S21. In step S <b> 21, the control device 8 causes the notification device 11 provided at an unsafe position in the evacuation staircase 1 to notify information prompting evacuation from the escape stairs 1 using the car 5.

  If the unsafe position is not the escape staircase 1 in step S20, the process proceeds to step S22. In step S <b> 22, the control device 8 causes the notification device 11 provided in the corridor at an unsafe position to notify information prompting evacuation using the car 5 without going to the evacuation stairs 1.

  After step S21 or step S22, the process proceeds to step S23. In step S23, the control device 8 determines whether or not the car 5 is full on the rescue floor. The control device 8 determines whether or not a preset time has elapsed after detection of boarding on the rescue floor.

  When the car 5 is not full in step S23 and the preset time has not elapsed, the operation in step S23 is repeated. If the car 5 is full in step S23, the process proceeds to step S24. If a preset time has elapsed after the boarding is detected in step S23, the process proceeds to step S24.

  In step S24, the control device 8 causes the car 5 to travel to the evacuation floor 2. Then, it progresses to step S25 and the control apparatus 8 determines whether the rescue floor is maintained in the unsafe state. When the rescue floor is maintained in an unsafe state in step S25, the operation from step S19 is repeated. If the rescue floor is not maintained in an unsafe state in step S25, the operation ends.

  According to Embodiment 1 demonstrated above, an unsafe floor is set as a rescue floor. At an unsafe position, the notification device 11 notifies information prompting evacuation using the car 5. The car 5 temporarily performs evacuation operation between the rescue floor and the evacuation floor 2. For this reason, the safety of evacuation using the evacuation stairs 1 can be improved in the event of a fire.

  For example, it is possible to prevent all persons inside the building from concentrating on the narrow escape stairs 1. As a result, it is possible to prevent the occurrence of heavy traffic on the evacuation stairs 1. It can also prevent delays in evacuation. Secondary disasters due to concentration on the evacuation stairs 1 can also be prevented. The fire brigade can also perform digestion activities using the evacuation stairs 1. Oxygen deficiency in the escape stairs 1 can also be suppressed.

  Further, according to the flow of FIG. 3 and FIG. 4, when the evacuation stairs 1 and the corridor to the evacuation stairs 1 are not safe on the same floor, priority is given to ensuring the safety of the evacuation stairs 1. In this case, in the evacuation stairs 1, the notification device 11 notifies information that prompts evacuation using the car 5. In the corridor up to the evacuation stairs 1, the notification device 11 does not notify information prompting evacuation using the car 5. As a result, the traffic jam on the evacuation stairs 1 can be eliminated more quickly.

  Moreover, according to the flow of FIG. 3 and FIG. 4, when the floor which is not safe disappears, the alerting | reporting by the alerting | reporting apparatus 11 of an applicable location and the evacuation driving | operation of the cage | basket | car 5 will stop. For this reason, the evacuation stairs 1 are preferentially used again in the vertical evacuation.

  Note that the priority order of the detection results of the flow rate detector 10a, the oxygen amount detector 10b, the smoke concentration detector 10c, and the flow rate detector 10d may be changed as appropriate. For example, the priority order may be changed according to the degree of safety based on the detection result.

  Moreover, you may determine with it being unsafe when the value of a carbon dioxide concentration is beyond a regulation value. In this case as well, the safety of evacuation using the evacuation stairs 1 can be improved in the event of a fire.

  DESCRIPTION OF SYMBOLS 1 Evacuation stairs, 2 Evacuation floor, 3 Disaster prevention center apparatus, 4 Hoistway, 5 Car, 6 Platform, 7 Machine room, 8 Control apparatus, 9 Fire detection apparatus, 10 Safety detection apparatus, 10a Flow rate detector, 10b Oxygen Quantity detector, 10c smoke concentration detector, 10d flow rate detector, 11 notification device

Claims (3)

Detecting the safety of evacuation using the evacuation stairs when a fire breaks out, provided in the corridors to each evacuation stairs of buildings with elevators or to the evacuation stairs on each floor of the building A plurality of safety detection devices;
Corresponding to each of the plurality of safety detection devices, a plurality of notification devices that are provided in the corridors to each floor in the evacuation stairs or the evacuation stairs on each floor of the building, and notify information,
When the fire broke out, the elevator car was returned to the evacuation floor, and the unsafe floor was set as the rescue floor based on the detection results of the plurality of safety detection devices. A control device for notifying the notification device of information prompting evacuation using the car and causing the car to evacuate between the rescue floor and the evacuation floor;
Elevator system with   If the evacuation stairs and the corridor to the evacuation stairs are not safe on the same floor, the control device informs the notification device provided on the floor of the evacuation stairs to urge evacuation using the car. The elevator system according to claim 1, wherein information notifying evacuation using the car is not notified to a notification device provided in a corridor to the evacuation stairs on the floor.   The control device, when there is no unsafe floor after the evacuation operation between the rescue floor and the evacuation floor in the car, information that prompts evacuation using the car by the notification device of the corresponding location The elevator system according to claim 1 or 2, wherein the notification and the evacuation operation of the car are stopped.

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