JP4862640B2 - Elevator control device - Google Patents

Description

  The present invention relates to an elevator control apparatus that determines whether a building shakes due to an earthquake or a building shake due to a strong wind, and performs control according to the determination result.

  When a building is shaken by an earthquake or a strong wind, in an elevator provided in the building, there may be a problem that, for example, a rope or a cable is caught by equipment in a hoistway due to the shake of the earthquake or the like. For this reason, in elevators, in order to prevent passenger confinement and damage to various types of equipment, conventional controls such as seismic and strong wind detection of building movements and transition to seismic control operation and strong wind control operation have been used. Has been implemented since.

  For example, as a conventional technique, based on a strong wind signal output from a wave energy sensor installed in a building indicating that a strong wind has been detected and a plurality of signals indicating the level, the vehicle is decelerated and waits for an intermediate floor. There has been proposed a control operation such as a pause (see Patent Document 1). As another prior art, seismic control operation and strong wind control operation are selectively operated based on the detection level and the perceived time output from a sensor that detects wave energy and vibration speed. The thing made to do is also proposed (for example, refer patent document 2).

JP-A-5-319720 JP-A-62-8985

  In recent years, with the rise of buildings equipped with elevators, long-period earthquakes that occur when relatively large earthquakes occur in remote areas have become a problem. However, the ones described in Patent Documents 1 and 2 cannot distinguish between the shaking of the building due to strong winds and the shaking of the buildings due to long-period earthquakes. There was a problem that it was not possible to control properly.

  That is, Patent Document 1 has no description about earthquake shaking, and could not cope with building shaking caused by long-period earthquakes. Moreover, in the thing of patent document 2, the shaking of the building by a strong wind and the shaking of a building by a long-period earthquake can be judged accurately from the sensing level sensed by the sensor and the sensing time. Therefore, the optimum control operation could not be selected.

  The present invention has been made to solve the above-described problems, and its purpose is to accurately determine the shaking of a building due to strong winds and the shaking of a building due to long-period earthquakes, and when a strong wind occurs. It is an object of the present invention to provide an elevator control device that can carry out optimal control operation in accordance with the occurrence of a long-period earthquake.

  The elevator control device according to the present invention is provided in a building where the elevator is installed, and is provided with a two-dimensional acceleration sensor that detects the amplitude, direction, and period of shaking of the building, and in the vicinity of the building. Based on the wind sensor that detects the direction and speed of the wind, the amplitude information from the two-dimensional acceleration sensor, the direction information and the period information, and the wind direction information and wind speed information from the wind sensor, And a control device that determines which of the strong winds is caused and controls the operation of the elevator based on the determination result.

  According to this invention, it is possible to accurately determine the shaking of the building due to strong winds and the shaking of the buildings due to long-period earthquakes, and to carry out optimal control operation in accordance with the time of occurrence of strong winds and the occurrence of long-period earthquakes. Can do.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
FIG. 1 is an external view of a building provided with an elevator control apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a block diagram showing an elevator control apparatus according to Embodiment 1 of the present invention. 1 and 2, 1 is a building where an elevator is installed, 2 is a top of the building 1, for example, a two-dimensional acceleration sensor provided in an elevator machine room, etc. 3 is provided in the building 1, for example, A wind sensor disposed near the rooftop of the building 1. Here, the two-dimensional acceleration sensor 2 senses the acceleration in the x-axis direction and the y-axis direction of the building 1 and detects the amplitude, direction, and period of the shaking of the building 1. Then, the detected amplitude, direction, and period of shaking of the building 1 are output as amplitude information, direction information, and period information, respectively. The wind sensor 3 detects the direction and speed of the wind at the installed location, that is, in the vicinity of the building 1. Then, the detected wind direction and wind speed are output as wind direction information and wind speed information, respectively.

  Reference numeral 4 denotes a control device that controls operation of the entire elevator including various control operations. During the operation of the elevator, the control device 4 is always supplied with amplitude information, direction information and period information from the two-dimensional acceleration sensor 2 and with wind direction information and wind speed information from the wind sensor 3 in real time. Then, the control device 4 accurately determines whether the shaking of the building 1 is caused by an earthquake or a strong wind based on the above information input from the two-dimensional acceleration sensor 2 and the wind sensor 3, Based on the judgment results, if necessary, optimal control operation will be carried out according to the time of occurrence of an earthquake (when a long-period earthquake occurs and when an earthquake other than a long-period earthquake occurs) and when a strong wind occurs.

  Specifically, the control device 4 includes an amplitude detection unit 5, a direction detection unit 6, a wind speed detection unit 7, a cycle detection unit 8, a storage unit 9, a driving method determination unit 10, and an operation control unit. 11 and the above-mentioned judgment and control operation control are performed by these means 5 to 11. Here, the amplitude detection means 5 is based on the amplitude information input from the two-dimensional acceleration sensor 2 and is used to determine (distinguish) between the occurrence of an earthquake and the occurrence of a strong wind. The size is detected at a plurality of levels (for example, three levels). For example, when the amplitude detection unit 5 determines that the amplitude of the shaking of the building 1 is smaller than the first threshold based on the amplitude information from the two-dimensional acceleration sensor 2, the magnitude of the shaking of the building 1. Detects that it is the first level at which it is not necessary to perform the control operation. If the amplitude detection means 5 determines that the amplitude of the shaking of the building 1 is larger than the first threshold and smaller than the second threshold (> first threshold) based on the amplitude information, the building The magnitude of 1 swing is detected as a second level that requires control operation but does not require urgency, and outputs small amplitude information. Further, when it is determined that the amplitude of the shaking of the building 1 is larger than the second threshold based on the amplitude information, the magnitude of the shaking of the building 1 needs to be controlled and is urgent. It detects that it is the 3rd level which requires sex, and outputs large amplitude information. The first threshold value and the second threshold value necessary for detecting the magnitude of shaking of the building 1 at a plurality of levels are stored (set) in advance in the storage unit 9.

  Based on the direction information input from the two-dimensional acceleration sensor 2 and the wind direction information input from the wind sensor 3, the direction detection unit 6 determines the direction of the shaking of the building 1 and the direction of the wind in the vicinity of the building 1. Is detected. For example, the direction detecting means 6 is based on the direction information from the two-dimensional acceleration sensor 2 and the wind direction information from the wind sensor 3 so that the direction of shaking of the building 1 and the wind direction in the vicinity of the building 1 are within a predetermined angle. If it is determined that the direction of shaking of the building 1 matches the wind direction in the vicinity of the building 1, the direction matching information is output. On the other hand, when it is determined that the direction of shaking of the building 1 and the wind direction in the vicinity of the building 1 do not fall within a predetermined angle, the direction of shaking of the building 1 and the wind direction in the vicinity of the building 1 do not match. Is detected, and direction mismatch information is output. The predetermined angle necessary for detecting whether the direction of shaking of the building 1 and the wind direction in the vicinity of the building 1 coincide with each other is stored (set) in the storage unit 9 in advance.

  The wind speed detection means 7 determines a plurality of wind speeds in the vicinity of the building 1 necessary for determining (distinguishing) between the occurrence of an earthquake and the occurrence of a strong wind based on the wind speed information input from the wind sensor 3. Detect by level (for example, two levels). For example, if the wind speed detecting means 7 determines that the wind speed in the vicinity of the building 1 is smaller than the first threshold based on the wind speed information from the wind sensor 3, the first level in which the wind in the vicinity of the building 1 is weak. Is detected, and small wind speed information is output. Further, when it is determined that the wind speed in the vicinity of the building 1 is larger than the first threshold based on the wind speed information, it is detected that the wind in the vicinity of the building 1 is a strong second level, and the large wind speed information is obtained. Output. The first threshold necessary for detecting the wind speed in the vicinity of the building 1 at a plurality of levels is stored (set) in the storage means 9 in advance.

  The period detection means 8 detects whether or not the building 1 is periodically swayed based on the period information input from the two-dimensional acceleration sensor 2. For example, when the period detection unit 8 determines that each period of the shaking of the building 1 is within a predetermined error range based on the period information from the two-dimensional acceleration sensor 2, the shaking of the building 1 is performed. Detects periodicity and outputs periodic shaking information. On the other hand, when it is determined that each period of the shaking of the building 1 is not within the predetermined error range based on the period information, the shaking of the building 1 is detected to be aperiodic, and the period is not aperiodic. The target shake information is output.

  The operation method determination means 10 is an optimum operation corresponding to the occurrence of earthquakes and strong winds based on various information input from the amplitude detection means 5, the direction detection means 6, the wind speed detection means 7, and the period detection means 8. A method (control operation) is selected, and the operation control means 11 is made to perform the selected control operation. Below, based on FIG.3 and FIG.4, the operation | movement of the said driving | operation system judgment means 10, ie, the specific example at the time of selecting the driving | operation system corresponding to generation | occurrence | production of an earthquake and a strong wind, is demonstrated. Here, FIG. 3 is a diagram for explaining the operation of the elevator control apparatus according to Embodiment 1 of the present invention, and FIG. 4 is a diagram for explaining the shaking of the building when a long-period earthquake and a strong wind occur. It is.

(1) Driving method 1, 2
With respect to the driving method determination means 10, small amplitude information from the amplitude detection means 5, direction coincidence information or direction mismatch information from the direction detection means 6, small wind speed information from the wind speed detection means 7, and non-periodicity from the period detection means 8. This is a case where the target shake information is input. In such a case, the driving method determination means 10 determines that the building 1 has been shaken by strong winds or earthquakes (excluding long-period earthquakes) that do not require the elevator service to be stopped. When applicable, the first strong wind control operation is performed, and when the operation method 2 is applied, the first earthquake control operation is performed.

  4A is a diagram showing a state of shaking of the building 1 caused by a long-period earthquake, and FIG. 4B is a diagram showing a state of shaking of the building 1 caused by strong wind. As shown in FIG. 4, when a shaking occurs in the building 1 due to a long-period earthquake, the shaking of the building 1 is caused by a long-period ground motion caused by a large-scale earthquake that occurred in a remote area. It is almost constant and the amplitude increases with time. In addition, when the building 1 is shaken by a strong wind such as during a typhoon, since the shake of the building 1 changes depending on the direction and strength of the wind, both the period and the amplitude change irregularly.

  Therefore, the driving method determination means 10 determines that the shaking of the building 1 is not caused by a long-period earthquake when the non-periodic shaking information is input from the period detection means 8. In addition, the driving method determination unit 10 receives the non-periodic shaking information from the cycle detection unit 8 and the direction matching information from the direction detection unit 6 so that the shaking of the building 1 is caused by a strong wind. When the direction mismatch information is input from the direction detection means 6, it is determined that the building 1 is generated by an earthquake other than a long-period earthquake. Note that even if the above-mentioned determination is made, the driving method determination unit 10 receives the small amplitude information from the amplitude detection unit 5, and therefore the strong wind or earthquake that does not require stopping the elevator service. It is judged that the shaking of the building 1 has occurred (excluding long-period earthquakes). In the first strong wind control operation and the first earthquake control operation, for example, the maximum speed of the car moving up and down in the hoistway is lowered from that in the normal operation to shift to the low speed mode, and the elevator service is performed as it is. Will continue.

(2) Driving method 3, 4
For the driving method determination means 10, small amplitude information from the amplitude detection means 5, direction coincidence information or direction mismatch information from the direction detection means 6, small wind speed information from the wind speed detection means 7, and periodic detection means 8 from the period detection means 8. This is the case when shaking information is input. In such a case, the driving method determination means 10 determines that the shaking of the building 1 has occurred due to a long-period earthquake and causes the second earthquake control operation to be performed.

  That is, the driving method determination means 10 determines that the shaking of the building 1 is due to a long-period earthquake by inputting the periodic shaking information from the period detection means 8. However, since the small amplitude information is input from the amplitude detection means 5, the driving method determination means 10 determines that the shaking of the building 1 is the initial stage of the shaking due to the long-period earthquake. Then, in the second earthquake control operation, for example, after stopping at the nearest floor, the passengers are expelled to prevent the middle floor from being stopped or confined as much as possible. In particular, in an elevator with an express zone, and an elevator for observation that has landings only on the top floor and the bottom floor, even if a turn-back operation is performed, the middle floor is prevented from being stopped or confined.

(3) Driving method 5
For the driving method determination means 10, large amplitude information from the amplitude detection means 5, direction coincidence information from the direction detection means 6, large wind speed information from the wind speed detection means 7, and non-periodic shaking information from the period detection means 8. This is the case when it is entered. In such a case, the driving method determination means 10 determines that the building 1 is shaken by a certain amount of strong wind that needs to temporarily stop the elevator service, and performs the second strong wind control operation.

  In other words, the driving method determination means 10 is the one in which the aperiodic shaking information is input from the period detecting means 8 and the direction coincidence information is input from the direction detecting means 6 so that the shaking of the building 1 is caused by a strong wind. Judge that there is. Further, since the large amplitude information is input from the amplitude detecting means 5, it is determined that it is necessary to temporarily stop the elevator service. In the second strong wind control operation, for example, after stopping at the nearest floor, the passengers are expelled to prevent as much as possible stoppage or confinement on the way. In addition, when the low wind speed information is input from the wind speed detection means 7 during the second strong wind control operation, the driving method determination means 10 determines that the wind has settled to some extent, and the driving method determination means 10 uses the elevator in the low speed mode. Service may be resumed.

(4) Driving method 6, 7, 8, 9, 10
When the driving method is 6 to 9, for the driving method determination unit 10, the amplitude detection unit 5 receives the large amplitude information, the direction detection unit 6 receives the direction coincidence information or the direction mismatch information, and the wind speed detection unit 7 provides the small wind speed. Periodic shaking information is input from the period detecting means 8 as information or large wind speed information. In such a case, since the period of shaking of the building 1 is periodic, the driving method determination means 10 determines that the shaking of the building 1 is caused by a long-period earthquake, and performs the third seismic control operation. Let

  Further, when the driving method is 10, for the driving method determination unit 10, the amplitude detection unit 5 receives the large amplitude information, the direction detection unit 6 receives the direction mismatch information, and the wind speed detection unit 7 receives the wind speed large information. Aperiodic shaking information is input from the detecting means 8. In such a case, since the period of shaking of the building 1 is aperiodic and the direction of shaking of the building 1 does not match the wind direction in the vicinity of the building 1, the driving method determination means 10 has a long shaking of the building 1. Judging that it is caused by an earthquake excluding periodic earthquakes, the control operation at the time of the fourth earthquake is carried out.

  However, when the driving method is 6 to 10, since the large amplitude information is inputted from the amplitude detecting means 5, in the third earthquake control operation and the fourth earthquake control operation, for example, the car is Controls such as stopping at the site to prevent further damage are implemented. In the third and fourth seismic control operations performed in the above operation methods 6 to 10, the large amplitude information input from the amplitude detecting means 5 is further divided into two levels, and if possible, at the lowest floor at a low speed. You may implement control which makes a car run.

  In addition, according to the operation | movement of the driving | operation system judgment means 10 as shown in FIG. 3, even if it is a case where a shake generate | occur | produces in the building 1 by a long-period earthquake, a 2nd earthquake will occur while the width of the building 1 is small. Time control operation is carried out and passengers in the car are rescued. Therefore, it is extremely rare that the third earthquake control operation is performed.

  On the other hand, when neither the large amplitude information nor the small amplitude information is input from the amplitude detecting means 5, the driving method determining means 10 determines that it is not necessary to carry out the control operation, and from the other detecting means 6 to 8. Regardless of the input information, normal operation continues.

  According to Embodiment 1 of the present invention, it is possible to accurately determine the shaking of the building 1 due to strong winds and the earthquake, particularly the shaking of the building 1 due to long-period earthquakes. When the earthquake occurs), it becomes possible to carry out optimal control operation from the initial stage of shaking. For this reason, it becomes possible to make the passenger in a cage | basket | car escape safely to a landing, and can prevent a confinement accident beforehand. This is a particularly effective means when an elevator is provided in a high-rise building that is likely to be shaken by a long-period earthquake.

  In addition, since it is possible to accurately determine that the building 1 is shaking due to strong winds, it is not necessary to mistake the shaking of the building 1 due to strong winds due to earthquakes as in the past. Can also be prevented.

  In addition, by capturing real-time earthquake information recommended in recent years into the control device 4, the approximate direction of the shaking of the building 1 due to a long-period earthquake is predicted from the position of the building 1 and the epicenter information. In this way, the determination accuracy by the driving method determination means 10 may be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the building provided with the elevator control apparatus in Embodiment 1 of this invention. It is a block block diagram which shows the control apparatus of the elevator in Embodiment 1 of this invention. It is a figure for demonstrating operation | movement of the control apparatus of the elevator in Embodiment 1 of this invention. It is a figure for demonstrating the shaking of a building at the time of a long-period earthquake occurrence and a strong wind occurrence.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building 2 Two-dimensional acceleration sensor 3 Wind sensor 4 Control apparatus 5 Amplitude detection means 6 Direction detection means 7 Wind speed detection means 8 Period detection means 9 Storage means 10 Driving system judgment means 11 Operation control means

Claims (6)

A two-dimensional acceleration sensor provided in a building where an elevator is installed, and detecting the amplitude, direction and period of shaking of the building;
A wind sensor provided in the building for detecting the direction and speed of the wind in the vicinity of the building;
Based on amplitude information, direction information and period information from the two-dimensional acceleration sensor, and wind direction information and wind speed information from the wind sensor, it is determined whether the building shake is caused by an earthquake or strong wind. And a control device for controlling the operation of the elevator based on the determination result;
An elevator control device comprising: The control device
Amplitude detection means for detecting the magnitude of the shaking of the building at a plurality of levels based on the amplitude information from the two-dimensional acceleration sensor;
Direction detecting means for detecting whether or not the direction of shaking of the building and the direction of the wind in the vicinity of the building match based on the direction information from the two-dimensional acceleration sensor and the wind direction information from the wind sensor; ,
A period detection means for detecting whether or not the shaking of the building is periodic based on the period information from the two-dimensional acceleration sensor;
Based on the detection results of the amplitude detection means, the direction detection means, the period detection means, and the wind speed information from the wind sensor, an operation method determination means for performing a control operation corresponding to the occurrence of an earthquake and a strong wind;
The elevator control device according to claim 1, further comprising:   The driving method judging means detects the magnitude of the shaking of the building above a predetermined value by the amplitude detecting means, and if the shaking of the building is detected to be periodic by the period detecting means, The control device for an elevator according to claim 2, wherein a control operation corresponding to the occurrence is performed.   The driving method determining means detects the magnitude of the building shake above a predetermined value by the amplitude detecting means, detects that the building shake is aperiodic by the period detecting means, and detects the building by the direction detecting means. The control operation corresponding to the occurrence of an earthquake other than a long-period earthquake is performed when it is detected that the direction of shaking of the object and the direction of the wind in the vicinity of the building do not match. The elevator control device according to claim 3.   The driving method determining means detects the magnitude of the building shake above a predetermined value by the amplitude detecting means, detects that the building shake is aperiodic by the period detecting means, and detects the building by the direction detecting means. The control operation corresponding to the generation of strong wind is performed when it is detected that the direction of the shaking of the object and the direction of the wind in the vicinity of the building coincide with each other. The elevator control device described in 1. The amplitude detection means detects at least three levels of the shaking of the building,
When the amplitude detection means detects the magnitude of shaking of the building at the second level that is greater than the first level, the driving method determination means and the third level when the amplitude detection means is greater than the second level. The elevator according to any one of claims 3 to 5, wherein different control operations corresponding to the occurrence of earthquakes and strong winds are performed when the magnitude of shaking of the building is detected. Control device.

Images