JPH0620987B2 - Elevator control operation during earthquake - Google Patents

Description

Description: [Industrial application] The present invention relates to an improvement in an elevator seismic control operation method.

[Prior Art and Problems] Generally, as an elevator operation during an earthquake, an earthquake detector is installed at an appropriate place in a building where the elevator is installed, and the elevator is stopped at the nearest floor by linking with the earthquake detector. A control operation is being performed during an earthquake, such as by letting it happen. As the setting value of the earthquake detector, the extra low setting value (equivalent to initial microtremor / P wave detection) is the lowest setting value in the “Elevator seismic design / construction guidelines” based on the Building Standards Act and the Ordinance for Enforcement of the Act. It is stipulated that if it senses a vibration above this special low set value, it will stop at the nearest floor as soon as possible.

Therefore, in conventional seismic control operation, if the detected acceleration of the seismic detector does not reach this extra-low set value, normal operation will continue even during an earthquake. Cause

For example, if a hall call is registered between the boarding floor and the destination floor after the passenger has registered the boarding destination floor in the elevator, or is already registered, the elevator will stop at the hall calling floor in the middle. Then, a new waiting passenger is put on and it runs toward the destination registration floor. In this case, if an earthquake occurs when the passengers first board, and the vibration level has not reached the extremely low set value, the elevator will start traveling and then stop on the floor where the passenger call is on the way. The passengers on the middle floor will get on the elevator even though the earthquake is occurring, because new passengers will be put on and the vehicle will start traveling again. For this reason, if the seismic motion increases afterwards and exceeds the extra-low set value, control operation such as stop at the nearest floor or emergency stop will start, but by adding new passengers on the intermediate floor as described above, it will be more than necessary. As a result, many passengers feel a great deal of anxiety. Also, if the passenger does not stop at the hall call floor on the way, the first passenger may get to the destination floor before the control operation due to the large earthquake motion, but by answering the hall call on the way, If the arrival at the destination floor is delayed by that amount, and if the seismic motion increases during that time and the control operation starts, the passengers who board the aircraft first will not be able to reach the destination floor. As described above, in the conventional seismic control operation, the normal operation is continued for the earthquake motion below the extra-low set value, resulting in the above-mentioned inconvenience.

[Means for Solving Problems] The present invention has been made in view of the above problems, and is characterized in that it is provided with a means for detecting a seismic motion of a certain level or more below an extra low set value. When an earthquake motion below the special low set value is detected, only the hall calls among registered calls are canceled, and the fact that an earthquake has occurred is displayed at each hall to prohibit registration of new hall calls. This is to prevent new passengers from getting inside, and to give priority to passengers in the car so that they can reach the destination floor quickly before the earthquake motion increases.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an earthquake control operation device for carrying out the present invention.

In the figure, 1 is an earthquake detector that is installed in an appropriate place in the building and outputs a signal 1a according to the vibration level, 2 is a preamplifier (AC amplifier) that amplifies the signal 1a, and 3 and 4 are certain constants, respectively. Comparators 5 and 6 provided with set values (for example, extra-low set value and low set value) are output circuits, and when the output of the preamplifier 2 is larger than the set value of the comparator 3 or 4, the signal 5a or 6a is output. Output.
Reference numeral 7 denotes a control operation command device which outputs a control operation command signal 7a in response to the signal 5a or 6a, which is the same as the conventional configuration up to this point.

Reference numeral 8 is a feature of the present invention. Reference numeral 9 is a comparator provided with a certain set value equal to or lower than the extra-low set value (preferably a value as low as possible within a range in which vibrations other than earthquake motion are not erroneously detected). An output circuit that outputs signals 10a and 10b when the output of the amplifier 2 is larger than the set value of the comparator 9, 11 is a display circuit that outputs the signal 11a to the hall display device (not shown) by the signal 10a, and 12 is the signal 10
This is an operation control device for canceling a landing call and outputting a registration prohibition signal 12a by b.

Next, the operation of the above configuration will be described.

When an earthquake occurs, the signal output from the earthquake detector 1 becomes the signal 2a amplified by the preamplifier 2 and is input to the comparators 3, 4 and 9, respectively. When the level of the signal 2a is equal to or lower than the extra low setting value and exceeds the setting value of the comparator 9, the signal 9a is output by the comparator 9 and the output circuit 10.
a and 10b are output. The signal 10b causes the driving control device 12 to output a landing call cancellation and registration prohibition signal 12a, while the signal 10a causes the display device 11 to signal 11.
Output "a" and display "Earthquake is occurring" at each landing.

As a result, if a car call is registered in the car, the car will be serviced only when the elevator is stopped or running, and if no car call is registered, there will be no call at all and the car will be stopped. Will remain stopped and will stop at the nearest floor while driving. In addition, during this period, a display regarding the occurrence of an earthquake is displayed at each hall to prevent passengers at the hall from boarding a stopped car or a car arriving by a car call.

After that, when the seismic motion increases and exceeds the set value of the comparator 3 or 4, the signal 5a or 6a is input to the control operation command device 7 via the output circuit 5 or 6, and the control operation similar to the conventional one is performed. .

In addition, if the set value of the comparator 3 or 4 is not exceeded even after a lapse of a predetermined time after the operation of the comparator 9, the cancellation of the hall call or the prohibition of registration is released, and the normal operation is restored.

EFFECTS OF THE INVENTION According to the present invention, until an extraordinary low set value is reached after an earthquake occurs, only the car call is enabled and the passengers in the car are preferentially transported, so that a new floor is newly added. By preventing waiting passengers from boarding and promptly transporting passengers in the car to the destination floor, it is possible to exert a great effect in improving serviceability and safety.

[Brief description of drawings]

FIG. 1 is a block diagram showing an earthquake control operation device for carrying out the present invention. 1 ... Earthquake detector 2 ... Preamplifier 3, 4, 9 ... Comparator 5, 6, 10 ... Output circuit 7 ... Control operation command circuit 11 ... Display circuit 12 ... Operation control device

Claims (1)

[Claims] Claim: What is claimed is: 1. An earthquake control operation method for an elevator, wherein a building is provided with an earthquake detector, and the elevator is controlled to operate during an earthquake in conjunction with the earthquake detector. When a vibration of the level is detected, only the hall call among the already registered calls is canceled, and a display regarding the occurrence of an earthquake is displayed at the hall on each floor to prohibit the registration of a new hall call. An earthquake control operation method for an elevator characterized by the above.