JP2008143612A - Elevator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator control device capable of improving evacuation efficiency by increasing maximum speed irrespective of car load when detecting that an earthquake reaches soon based on an earthquake arrival forecast from an earthquake forecasting device in an emergency. <P>SOLUTION: The elevator control device regulating the maximum speed according to load in a car increases speed up to the maximum speed irrespective of the load in the car to operate an elevator to an evacuation floor or to a nearest floor when detecting that the earthquake reaches soon based on the earthquake arrival forecast from the earthquake forecasting device 6 in the emergency. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator control device that controls to increase the maximum speed regardless of the car load when it is detected that an earthquake is coming soon, based on an earthquake arrival forecast from an earthquake prediction device in an emergency. is there.

  Conventionally, in an elevator that adjusts the maximum speed and acceleration / deceleration according to the load in the car, it is possible to move between floors in the shortest time according to the car load, taking into consideration the drive characteristics of the motor and heat generation of the electronic equipment. Is known (see, for example, Patent Document 1).

Regarding the maximum speed setting, the maximum speed is set within the range where the elevator components do not become overloaded, and the components that must be considered in that case include breakers, main circuit controllers, motors, traction, Examples include a resistor constituting the regenerative circuit. For the breaker, since a large current flows in the main circuit, the maximum speed is set in a range where the breaker does not trip, and the maximum speed is usually set according to the car load. For the main circuit control device, since a large current flows through the main circuit and the life of the equipment may be shortened, the maximum speed is set according to the car load. As for the motor, a large current flows in the motor current, and there is a possibility of equipment destruction due to heat generation, so the maximum speed is set according to the car load. As for traction, the maximum speed is set within a range that allows traction mechanically (no slippage). In addition, when the regenerative circuit is configured by a resistor, a regenerative current larger than that in the normal state flows and there is a possibility of thermal breakdown, so the maximum speed is set according to the car load.
Since it is necessary to select the slowest maximum speed among the above-mentioned maximum speeds, the efficiency of operation is achieved in a range where no equipment load is applied by setting the maximum speed according to the normal car load.

JP 2003-238037 A

  In the conventional elevator, the maximum speed is set according to the normal car load, so that the efficiency of operation is achieved in the range where the equipment load is not applied, but the elevator control at the time of earthquake was not taken into consideration .

  The present invention has been made to solve the above-described problems. When an earthquake is detected to arrive soon on the basis of an earthquake arrival forecast from an earthquake prediction device in an emergency, this invention is not related to the car load. It is an object of the present invention to provide an elevator control device that can increase evacuation efficiency by increasing the maximum speed.

  In the elevator control device according to the present invention, when the maximum speed is adjusted according to the load in the car, based on the earthquake arrival forecast from the earthquake prediction device in an emergency, it is detected that an earthquake will soon arrive Speed up to the maximum speed regardless of the load in the car and drive to the evacuation floor or the nearest floor.

  Also, in the case of adjusting the maximum speed according to the load in the car, the time to reach the earthquake from the earthquake forecasting device in emergency is received and the distance from the current position of the car to the evacuation floor or the nearest floor is calculated. If you can reach the evacuation floor or the nearest floor before the earthquake reaches, speed up to the maximum speed regardless of the load in the car, drive to the evacuation floor or the nearest floor, If you cannot reach the floor, you can stop the elevator and prepare for the earthquake.

  According to this invention, when it is detected that an earthquake will soon arrive based on the earthquake arrival forecast from the earthquake prediction device in an emergency, the operation (evacuation) efficiency is improved by increasing the maximum speed regardless of the car load. Therefore, the rescue operation can be performed as much as possible to rescue the passenger.

Embodiment 1 FIG.
FIG. 1 is a system configuration diagram showing the overall configuration of an elevator control apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a flowchart for explaining the operation of the elevator control apparatus according to Embodiment 1 of the present invention.

  In FIG. 1, 1 is an elevator car, 2 is a counterweight, 3 is a hoisting machine, 4 is a drive motor, 5 is an elevator control panel, and 6 is an earthquake prediction device in an emergency. The elevator control panel 5 includes an earthquake information collecting device 7 that collects earthquake information from the earthquake forecasting device 6, a car load detecting means or car load switching means 8 for detecting a car load, and a next stop floor setting means 9. , A speed pattern generation means 10 for generating a maximum speed and acceleration / deceleration according to the car load, and an inverter 11 for controlling the drive motor 4 are provided.

Next, the operation of the elevator control device will be described with reference to the flowchart shown in FIG.
First, the earthquake arrival time is output from the earthquake prediction device 6 in step S1, and the current time is output from the earthquake prediction device 6 or the like in step S2. In step S3, the earthquake information collecting means 7 of the elevator control panel 5 receives the earthquake arrival time and the current time. The earthquake information collecting means 7 calculates the time to reach the earthquake (Step S4), and calculates the current position of the car and the distance to the evacuation floor or the nearest floor (Step S5). The current car position is detected using, for example, encoder information used in elevator control (step S6). Next, the process proceeds from step S5 to step S7, and it is determined whether or not the evacuation floor or the nearest floor can be reached before the earthquake reaches (step S7). If it is determined in step S7 that it is possible to reach the evacuation floor or the nearest floor, the elevator is speeded up to the maximum speed (step S8), and the rescue operation is carried out to the evacuation floor or the nearest floor. (Step S9). On the other hand, if it is determined in step S7 that it is not possible to reach the evacuation floor or the nearest floor, the elevator is stopped before the earthquake arrival time (step S10) to prepare for the earthquake (step S11).

  According to the first embodiment, when it is detected that an earthquake will soon arrive based on the earthquake arrival forecast from the earthquake forecasting device in an emergency, the maximum speed is increased regardless of the car load. Although the load is applied, it is possible to increase the operation (evacuation) efficiency, so that the rescue operation can be performed as much as possible to rescue the passenger. It is to be noted that it is necessary to increase the maximum speed within the range in which the constituent devices are established and the conditions in which the device is not destroyed as in the conventional case.

Embodiment 2. FIG.
FIG. 3 is a flowchart for explaining the operation of the elevator control apparatus according to Embodiment 2 of the present invention.

  In the second embodiment, in addition to the flowchart of the first embodiment, in step S4, the time until the arrival of the earthquake calculated by the earthquake information collecting means 7 is transmitted to the landing or in-car display device, and the earthquake In step S12, the arrival time or the time until the earthquake is displayed on the display device in the hall or in the car is added. In step S8, the speed-up information indicating that the elevator is speeded up to the maximum speed is displayed on the display device in the hall or in the car. Step S13 for transmitting and displaying the speed-up information on the hall or in-car display device is added. Except for the above, the second embodiment is substantially the same as the first embodiment.

Embodiment 3 FIG.
FIG. 4 is a flowchart for explaining the operation of the elevator control apparatus according to Embodiment 3 of the present invention.

  In the first embodiment, when it is determined that it is possible to reach the evacuation floor or the nearest floor, the elevator is speeded up to the maximum speed and the rescue operation is performed to the evacuation floor or the nearest floor. As described above, in the third embodiment, when the earthquake arrival time is reached at the time of landing, the door is closed in advance and control is performed so as not to get on and off during the earthquake. Since the car vibrates greatly during the earthquake, it is better to refrain from getting on and off the boarding area because of the level difference between the platform and the car. That is, the rescue operation is performed to the evacuation floor or the nearest floor (step S9), and when landing on the evacuation floor or the nearest floor (step S14), the door opening time + the getting on / off time + door closing until the arrival of the earthquake in the next step S15 Judge whether time can be secured. If there is time in step S15, the door can be opened and boarded and exited (step S16), and the door is closed before the earthquake arrives (step S17), and an earthquake occurs (step S18). Further, if there is no time margin in step S15, an earthquake occurs after waiting with the door closed (step S19) (step S18). Then, after the earthquake is over (step S20), the landing step difference from the landing is confirmed and it is determined whether or not it is within the landing range (step S21). Whether or not the vehicle is within the landing range is detected by, for example, a well-known landing detection device or the like (step S22). If the car is within the landing range in step S21, the door is opened to allow getting on and off, and the rescue operation is continued (step S23). If the landing step is not large and not within the landing range in step S21, correction is performed by landing correction operation (step S24). ).

Embodiment 4 FIG.
FIG. 5 is a flowchart for explaining the operation of the elevator control apparatus according to Embodiment 4 of the present invention.

  In the fourth embodiment, in addition to the flowchart of the first embodiment, in step S10, it is determined that the evacuation floor or the nearest floor cannot be reached, and the elevator is stopped before the earthquake arrival time. Further, step S25 for displaying information on service suspension due to an earthquake on the display device in the hall or in the car is added. Except for the above, the second embodiment is substantially the same as the first embodiment.

Embodiment 5. FIG.
FIG. 6 is a flowchart for explaining the operation of the elevator control apparatus according to Embodiment 5 of the present invention.

  In the fifth embodiment, the earthquake arrival time is output from the earthquake prediction device 6 in step S1, and the current time is output from the earthquake prediction device 6 or the like in step S2. In step S3, the earthquake information collecting means 7 of the elevator control panel 5 receives the earthquake arrival time and the current time. The earthquake information collection means 7 calculates the time to reach the earthquake (step S4), and then calculates the drivable distance when the speed is increased to the maximum speed (step S26). Then, a serviceable floor is calculated from the current position of the car (step S27). The current car position is detected using, for example, encoder information used in elevator control (step S6). Next, the process proceeds from the step S27 to the car display (step S28) and the hall display (step S29). The car display displays information on the serviceable floor due to the earthquake on the car display device (step S30). ), Canceling the call registration of the service impossible floor of the operation panel in the car and making the new call registration impossible (step S31). In the hall display, information on the serviceable floor is displayed on the hall display device due to the earthquake (step S32). Except for the above, the second embodiment is substantially the same as the first embodiment.

  According to the fifth embodiment, when the elevator speeds up to the maximum speed, the time until the earthquake arrives, the serviceable floor can be determined and displayed on the landing or in the car.

1 is a system configuration diagram illustrating an overall configuration of an elevator control device according to Embodiment 1 of the present invention. It is a flowchart for demonstrating operation | movement of the control apparatus of the elevator in Embodiment 1 of this invention. It is a flowchart for demonstrating operation | movement of the control apparatus of the elevator in Embodiment 2 of this invention. It is a flowchart for demonstrating operation | movement of the control apparatus of the elevator in Embodiment 3 of this invention. It is a flowchart for demonstrating operation | movement of the control apparatus of the elevator in Embodiment 4 of this invention. It is a flowchart for demonstrating operation | movement of the control apparatus of the elevator in Embodiment 5 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator car 2 Counterweight 3 Hoisting machine 4 Drive motor 5 Elevator control panel 6 Earthquake forecasting device 7 Earthquake information collection device 8 Car load detection means or switching means 9 Next stop floor setting means 10 Speed pattern generation means 11 Inverter

Claims (7)

In an elevator control device that adjusts the maximum speed according to the load in the car,
If it is detected that an earthquake will soon arrive based on the earthquake arrival forecast from the emergency earthquake forecasting device, speed up to the maximum speed regardless of the load in the car and drive to the evacuation floor or the nearest floor An elevator control device characterized by the above. In an elevator control device that adjusts the maximum speed according to the load in the car,
When the time to reach the earthquake from the earthquake forecasting device in an emergency is received, the distance between the current position of the car and the evacuation floor or the nearest floor is calculated, and if the evacuation floor or the nearest floor can be reached by the arrival of the earthquake Drive up to the maximum speed regardless of the load in the car, drive to the evacuation floor or the nearest floor, and if you can not reach the evacuation floor or the nearest floor before the earthquake reaches, stop the elevator and prepare for the earthquake An elevator control device characterized by the above.   The elevator control device according to claim 1 or 2, wherein the earthquake arrival prediction time or speed-up information is displayed on a landing or in-car display device.   3. The elevator control device according to claim 2, wherein when the elevator is stopped to prepare for an earthquake, information on service suspension for the earthquake is displayed on a landing or car display device.   The elevator control device according to any one of claims 1 to 4, wherein when the arrival time of the earthquake reaches the evacuation floor or the nearest floor, it is controlled so as to be closed and not to get on and off. .   After the earthquake, determine whether the car is within the landing range, and if the car is within the landing range, the door can be opened and boarded / exited. The elevator control device according to claim 5, wherein the elevator can be opened from the door and can be boarded and alighted. In an elevator control device that adjusts the maximum speed according to the load in the car,
Receive the time to reach the earthquake from the earthquake prediction device in emergency, calculate the time to reach the earthquake, calculate the driving distance when the speed is increased to the maximum speed, and find the serviceable floor from the current position of the car An elevator control device characterized in that it is calculated and displayed in a car or a hall.

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