JPS6181378A - Method and device for earthquake-controlling elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an earthquake control method and control device for an elevator, and particularly an earthquake control method and control device for an elevator that stops the elevator at the nearest floor after an earthquake occurs and restores the elevator after an earthquake. J:
and control equipment.

(Technical Background of the Invention) In order to ensure the safety of passengers during an earthquake, it is desirable to equip elevators with earthquake control equipment.This earthquake control equipment generally has a seismograph and is capable of controlling vibrations that are constant and louder than a bell. The function is to safely stop the elevator at the nearest floor when the elevator is detected. In recent years, earthquake control systems have been proposed that automatically perform recovery operations after an earthquake. Afterwards, if the vibrations have subsided, the elevator is first run for inspection, and if there are no abnormalities, it is automatically put into recovery operation. As long as there are no abnormalities, the elevator will automatically resume operation even without inspection and confirmation, which is convenient because even in the event of a wide-area earthquake, elevator stoppage time can be minimized.

[Problems with background technology]

However, the aforementioned earthquake control devices have drawbacks in terms of safety. In general, earthquakes often produce aftershocks after the main shock, and these aftershocks may occur several times a day. After a main shock, even if earthquake control equipment determines that there is no abnormality and resumes operation, buildings and elevator equipment often sustain some damage from the main shock. Therefore, carrying out recovery operations using the same safety standards as before the main shock poses safety problems in the event of aftershocks.

[Purpose of the invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an elevator earthquake control method and control device that can sufficiently ensure safety against aftershocks during recovery operations after an earthquake.

[Summary of the invention]

The feature of the present invention is to perform earthquake control for elevators, which stops the car at the nearest floor when an earthquake of a magnitude exceeding a certain standard occurs, and performs recovery operation of the elevator if it is determined that there is no abnormality after the earthquake. In this case, during recovery operation after stopping at the nearest floor, the standard for stopping at the nearest floor in the event of another earthquake is lowered than during normal operation, and furthermore, if the standard for stopping at the nearest floor is exceeded by this second earthquake. The reason is that subsequent recovery operations are prohibited, ensuring sufficient safety against aftershocks.

(Embodiments of the Invention) The present invention will be described in detail below based on illustrative embodiments.
1 and 2 are flowcharts showing an example of the earthquake control method according to the present invention. In the present invention, the first method is determined according to the scale of the earthquake.
Second. A third standard (first standard ≧ third standard ≧ second standard) is provided, and in this example, these are set to 150 (lal, 100 gal, 80 oa), respectively.
It is set as l. FIG. 1 is a flowchart showing the procedure for earthquake detection. When an earthquake is detected, it is first determined in step S1 whether or not recovery operation is in progress. In other words, if the nearest floor has never been stopped due to an earthquake after a maintenance inspection, normal operation is in effect, and if the nearest floor has been stopped even once due to an earthquake, recovery operation is in effect. In the case of normal operation, in step s2, the magnitude of the earthquake is the first M level (150
oal) or more, and if it is more than the reference, the nearest floor stop flag is set in step s3. On the other hand, if the restoration operation is in progress, it is determined in step S4 whether the scale of the earthquake is greater than or equal to a second standard (80 (lal)).

During recovery operations, there is a possibility that the building 6 and elevator equipment may be damaged, so the standards are lower than during normal operations to improve safety. Here, if it is above the standard, the nearest floor stop flag is set in step S5.

Further, in step s6, it is determined whether the magnitude of the earthquake is greater than or equal to a third standard (100 oal), and if it is greater than the criterion, a restoration prohibition flag is set in step s7.

FIG. 2 is a flowchart showing the operating procedure of an elevator controlled by such a flag. First, in step S8, it is determined whether the nearest floor stop flag is set,
If it has been set, the car is immediately stopped at the nearest floor in step S9. After the earthquake, it is determined in step s10 whether or not the restoration prohibition flag is set to 1~, and if it is set, restoration operation is not performed, and the elevator will not be operated thereafter until the maintenance staff completes inspection and maintenance. .

If the flag is not set, automatic inspection is performed in step S11, and if it is determined that there is no abnormality, step S11 is performed.
Restoration operation is started at step 12, and the nearest floor stop flag is cleared at step s and step 13.

Next, an example of an earthquake control device for carrying out the above earthquake control method will be shown. FIG. 3 is a hardware configuration diagram of this earthquake control system. Seismometer 1 consists of three earthquake detectors A that are activated by mechanical motion.

Consists of B and C. Detector A has a low reference value, e.g. 8
It senses an earthquake of 0oal or more and outputs a signal a. Similarly, detectors B and C have medium standard value and high standard value, for example, 100 oa.
It senses earthquakes of 1 and 150 oal or more and outputs signals S and C, respectively. The output of the seismometer 1 is given to a control device 2. The control device 2 includes an input buffer 3, a micro combi coater 4, and an output buffer 5.

The input buffer 3 receives signals a, b, and c from the seismometer 1, and at the same time receives signals from the mode switch 6 and setting switches 7-1.7-2.7-3.

Data applied to the input buffer 3 is processed by the microcomputer 4 and a control signal is sent to the output buffer 5. The output buffer 5 sends a display signal to the indicator lights 8-1, 8-2, and 8-3, and also provides a control signal to the speed controller 9. Speed control device M9 is elevator electric TFI10
control. Further, the output buffer 5 provides a reset signal d to the seismograph 1.

The operation of this earthquake control system will be explained using the software configuration diagram shown in FIG. This figure shows the configuration of the control device 2 in FIG. 3 using software blocks, and the same components as in FIG. 3 are designated by the same reference numerals. First, consider the ground where the elevator will be installed, the strength of the building, etc. Set the second and third criteria. This setting is made by mode switch 6 and setting switch 7-1.7-2.
This is performed by the reference setting section 11 based on the input from 7-3. This setting operation is indicated by the indicator light drive unit 12 on the indicator lights 8-1.8-2.8-3. Next, we will discuss the operation when an earthquake occurs.

When an earthquake occurs, signals a and b are emitted depending on the magnitude of the earthquake.

C is given to the earthquake level detection section 13. Earthquake level detection section 13 provides data regarding this earthquake level to seismograph reset section 14 and determination section 15 . In response to this, the seismograph reset unit 14 outputs a reset signal d to reset the seismograph 1.

Furthermore, the earthquake level detection section 13 sends data to the indicator light drive section 12, and the indicator light drive section turns on the indicator lights 8 according to the scale of the earthquake. On the other hand, the determining unit 15 uses the data given from the earthquake level detecting unit 13 to determine the first level set in the standard setting unit 11. Comparisons are made with the second and third standards, and a signal is sent to the control unit 16 in accordance with the procedure shown in FIG. 1 to instruct whether or not to set each flag. The operation control section 16 is the second
Please operate the elevator according to the steps shown in the diagram.
A control signal is sent to the speed control device 9.

Finally, an example of the standard setting operation in the standard setting section 11 will be explained with reference to the flowchart of FIG. First step s14
It is determined whether the mode is set or not. That is, if the mode switch 6 is on the set side, it is the set mode, if it is on the reset side, it is the reset mode, and if it is in the neutral state, it is the neutral mode.

If it is the set mode, the up edge of the setting switch 7, that is, the rising edge of the setting switch 7 is detected in step 815. An up edge is detected at the moment one of the setting switches 7 is pressed, and the counter C counts up by 1 in step 816.

The initial value of the counter C is O as described later.

In this embodiment, each criterion is a first criterion and a second criterion.

The third criterion is set in order, and these correspond to counter C=1.2.3, respectively. Therefore, the first standard is first set. In step S17, it is determined which of 7-1.7-2.7-3 the setting switch was pressed. Each of these switches has a low, medium, and high reference value, respectively, 80oal, 100oal, and
Compatible with 150 oal.

For example, when setting 150aal as the first standard,
The setting switch 7-3 will be pressed.

In step s18, the reference value corresponding to the pressed setting switch 7 is selected. Subsequently, in step s19, the value of counter C is determined. In step S20, step s
The value selected in step 18 is set to the first value according to the value of counter C. Second. Set as the third standard. In this example, counter C=1
Therefore, 150 gal selected as the first standard is set in step 520-1. In step s21, it is determined whether the counter C=3.

That is, the same procedure is repeated until the counter C=3 and the setting of the third standard is completed. Note that the indicator light 8 displays via the indicator light drive section 12 which reference value among low, middle, and high standards is currently set. For example, if you decide to press the setting switch 7-3, it will be set to 150aal (high standard value), but at this time the indicator light 8-
3 lights up to indicate this. As another example, nine indicator lights are used, and the first. Second. For each of the third criteria, indicator lights may be provided corresponding to low, middle, and high levels. On the other hand, in the case of the reset mode, the first . Second
．． A low reference value is set for all the third criteria. In the above example, all standards are set to 80aal, and if an earthquake of 80!1la1 or higher occurs, the car will stop at the nearest floor and recovery operations will be prohibited thereafter. When reset in this way, the settings will always be on the safe side. If it is determined in step 822 that the mode is neutral mode, no setting changes are made. Note that in the case of the reset mode and neutral mode, the counter C is cleared to the initial value O in step 824. An example of setting each standard using the mode switch 6 and setting switch 7 has been described above, but it is also possible to set more advanced contents by providing an input terminal such as a keyboard in the control room of the elevator.

〔Effect of the invention〕

As described above, according to the present invention, the control standards for earthquake occurrence are set to different values during normal operation and during recovery operation, so that the elevator can sufficiently ensure safety against aftershocks during recovery operation. Earthquake control can be carried out.

[Brief explanation of the drawing]

FIG. 1 is a flow chart showing the earthquake detection procedure according to the present invention, FIG. 2 is a flow chart showing the elevator operation procedure according to the present invention, FIG. 3 is a hardware configuration diagram of the earthquake control system according to the present invention, and FIG. FIG. 4 is a software configuration diagram of the earthquake control system according to the present invention, and FIG. 5 is a flowchart showing an example of a standard setting operation. DESCRIPTION OF SYMBOLS 1... Seismometer, 2... Control device, 3... Input buffer, 4... Microcomputer, 5... Output buffer, 6... Mode switch, 7... Setting switch, 8 ...Indicator light, 9...Speed control device, 10...
- Electric motor, 11... Standard setting section, 12... Indicator light drive section, 13... Earthquake level detection section, 14... Seismometer reset section, 15... Judgment section, 16... Operation control section. Fig. 2 Overnight operation N] 〒Kayayori floor I stop, nearest floor I stop IO? N Inspection abnormality7. ? Y 312 Greetings old driver) 2

Claims (1)

[Claims] 1. An elevator system that, when an earthquake occurs, stops the car at the nearest floor depending on the scale of the earthquake, and after the earthquake, if it is determined that there is no abnormality after the earthquake, restores the elevator. An earthquake control method that determines whether an elevator is in normal operation or recovery operation at the time of an earthquake, and if the elevator is in normal operation, the elevator is moved to the nearest floor when the magnitude of the earthquake is greater than a first criterion. and stopping the car at the nearest floor when the scale of the earthquake is equal to or higher than a second standard (second standard ≦ the first standard) when the car is in the recovery operation. Earthquake control method for elevators. 2. An elevator earthquake control method in which, when an earthquake occurs, the car is stopped at the nearest floor depending on the scale of the earthquake, and if it is determined that there is no abnormality after the earthquake, the elevator is operated for recovery. , determine whether the elevator is in normal operation or recovery operation when an earthquake occurs, and if the elevator is in normal operation, stop the car at the nearest floor when the scale of the earthquake is equal to or higher than a first criterion, and perform the recovery operation. When the car is in operation, the car is stopped at the nearest floor when the scale of the earthquake is equal to or higher than a second standard (second standard ≦ the first standard), and the scale of the earthquake is equal to or higher than the third standard. (Third criterion≧second criterion) An elevator earthquake control method characterized by prohibiting subsequent recovery operation when the third criterion is equal to or higher than the second criterion. 3. A seismometer that has a plurality of detection criteria and generates a signal corresponding to each of the detection criteria when an earthquake exceeding each of the detection criteria occurs; a standard setting unit for setting a standard (first standard ≧ third standard ≧ second standard); and comparing the output signal of the seismometer with each of the standards set in the standard setting unit. If the output signal of the seismograph exceeds the first criterion, set the nearest floor stop flag, and if the output signal of the seismograph exceeds the second criterion, set the nearest floor stop flag. , the nearest floor stop flag has been set at least once
The nearest floor stop flag is set only when the nearest floor stop flag is set once, and if the output signal of the seismograph exceeds the third criterion, it is determined that the nearest floor stop flag has ever been set. a determination unit that sets a restoration prohibition flag only when the above occurs at least once, and when the nearest floor stop flag is set, the car is stopped at the nearest floor, and after the earthquake, it is determined that there is no abnormality through inspection. an elevator earthquake control device, comprising: an operation control unit that causes the elevator to perform a recovery operation and simultaneously clears the nearest floor stop flag only when the recovery prohibition flag is not set;