JP2015042583A - Emergency operation control device and emergency operation control method for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emergency operation control device for an elevator which detects a position of a tail cord with good accuracy while it is actually shaking, and to prevent breakage of equipment caused by the shaking of the tail cord by quickly determining whether or not an emergency operation is necessary.SOLUTION: An elevator device for performing an emergency operation in the case of an earthquake or strong wind includes: a plurality of detection devices 11a-11d installed at preset intervals with end parts of a car 1 side and a machine room 21 side of a tail cord 10 being the reference, and detecting acceleration during the movement of the tail cord; a position calculation device 5 for acquiring the position of the tail cord 10 by calculation based on acceleration data detected by the detection devices; and a control panel 3 for acquiring distance between the tail cord 10 and in-hoistway equipment by comparing the acquired positional information with arrangement information of the in-hoistway equipment, and performing an emergency operation based on the acquired distance. A threshold value is set with respect to the distance, and it is determined whether or not the emergency operation is necessary by comparing the threshold value with the distance.

Description

  The present invention relates to an elevator control operation control apparatus and a control operation control method, and more particularly, for example, a vibration in an elevator tail cord during an earthquake or strong wind is detected, and equipment in the tail cord hoistway may be damaged. The present invention relates to a control operation control apparatus and a control operation control method for an elevator that performs a control operation when there is an engine.

  In tall buildings such as high-rise buildings, elevators that move from the bottom floor to the top floor, or elevators that move from the middle floor to the top floor, are moved from the guide rails and machine room machines when the building shakes due to an earthquake or strong wind. Shake is transmitted to the rope, the car or the tail cord. If the amount of shaking is large, it will hit the equipment in the tower, causing the car to break and the tail cord or rope to break. In particular, the tail cord may continue to oscillate even if the car and rope vibrations subside, and it is necessary to know the tail cord sway separately for each car.

  For example, a technique described in Japanese Patent Laid-Open No. 8-245106 (Patent Document 1) is known as means for knowing the tail cord fluctuation. This technology detects the level of acceleration generated by earthquakes according to the intensity of extra low gal, low gal, and high gal earthquakes, and controls the elevators according to the detection levels of the seismic detectors. An elevator controller with seismic control operation control, a detector for detecting the vibration level of the tail cord at the tail cord receiving part under the elevator car, and a tail code for determining and detecting that the vibration is within a set fixed value When the vibration detection device and the earthquake detector detect a weak earthquake (extra low gal), the seismic control operation control device forcibly stops the elevator car to the nearest floor, and the seismic detector detects the extra low gal. Elevator after detecting and detecting that the earthquake is not detected within a certain time after the last detection and the vibration level of the tail cord is within the set value Those, wherein the determination unit to return to normal operation, the seismic control operation control device for an elevator equipped.

JP-A-8-245106

  In the known technology, vibration of the tail cord is detected during an earthquake, and control control is executed according to the detection result. However, the tail code generated by the long-period shaking of the building due to strong winds and the vibration due to the movement of the cage is actually detected. The width of the sway is not detected. Further, since the amount of attenuation on the desk is obtained from the detected vibration amount to determine whether or not the car can move, safety is always taken into consideration, and it takes time to determine that the car can move. Furthermore, since the vibration is detected by vibration, the relationship between the vibration when the car is raised and lowered and the tail code is different between when the wind is strong and when there is no wind, and it is necessary to determine the setting for each pattern. However, in reality, it is difficult to grasp the movement of the tail cord only by vibration.

  Therefore, the problem to be solved by the present invention is to obtain the position of the tail cord that is actually swaying and to accurately determine whether or not the control operation is necessary based on the obtained position.

  In order to solve the above problems, the present invention provides a control operation control apparatus for an elevator that performs control operation during an earthquake or a strong wind, at a predetermined interval with respect to an end portion on a car side and a machine room side of a tail cord. Acceleration detection means installed and detecting acceleration at the time of movement of the tail code; position information of the tail code calculated based on acceleration data detected by the detection means and arrangement data of the equipment in the hoistway; Comparing with the calculation means for calculating the distance to the hoistway device in comparison, and the control means for performing the control operation of the elevator based on the distance. Note that problems, configurations, and effects other than those described above will become apparent in the following description of embodiments.

  According to the present invention, the position of the tail cord actually swaying by the detection means is obtained, and the control means can accurately determine whether or not the control operation is necessary from the distance relationship between the position of the tail cord and the equipment in the hoistway. it can.

It is sectional drawing of the elevator hoistway which concerns on embodiment of this invention, and shows a state when a passenger car is located in the lowest floor. It is sectional drawing which shows the state which attached the detection apparatus in FIG. 1 to the tail cord. It is a figure which shows the process sequence which calculates distance data from the acceleration data of a detection apparatus, and sets whether normal operation or control operation is performed. It is sectional drawing of the elevator hoistway which concerns on embodiment of this invention, and shows a state when a passenger car is located in the top floor.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a schematic configuration of an elevator apparatus according to an embodiment of the present invention. In the figure, an elevator apparatus E according to this embodiment is configured such that a car 1 and a counterweight 2 are raised and lowered along a guide rail. The car 1 and the counterweight 2 are suspended and driven by the main rope 7 via the hoisting machine 4 in the machine room 21 above the hoistway 20. A control panel 3, a speed governor 6, and a tail code position calculation device (hereinafter simply referred to as “position calculation device”) 5 are disposed in the machine room 21. A governor rope 8 is wound around the governor 6. The governor rope 8 is connected to the car 1 by a connection tool (not shown).

 A tail cord 10 is laid on the car 1 for power supply and control to the car 1. In the hoistway 20, a main rope 7, a governor rope 8, a tail cord 10, a guide rail, and a bracket 22 that supports equipment in the hoistway are disposed.

  An anemometer 30 and an anemometer 31 are installed on the roof of the building 40 in which the machine room 21 is housed, and the wind speed data and the wind direction data are input to the position calculation device 5 via the communication line 32.

  Each of the control panel 3 and the position calculation device 5 includes a CPU, and the CPU includes a control unit and a calculation unit. The control unit controls the interpretation of instructions and the control flow of the program, and the calculation unit executes the calculation. The program is stored in a memory (not shown), an instruction to be executed (a numerical value or a sequence of numerical values) is taken out from the memory in which the program is placed, the program is executed, and the position of the tail code 10 is calculated. Note that the position calculation device 5 may use AISC (Application Specific Integrated Circuits) instead of the CPU.

  2 is a cross-sectional view of the tail cord 10 in FIG. As shown in the figure, a plurality of detection devices 11 for detecting the vibration of the tail cord 10 are installed on the flat surface of the tail cord 10 so that the Z-axis is in the longitudinal direction of the tail cord 10. The detection device 11 is attached by attaching the bottom of the detection device 11 to the tail cord 10 with an adhesive. Each detection device 11 includes a battery and a communication unit.

  The tail cord 10 is bent by the raising and lowering of the car 1, and further moves up and down. Therefore, it is necessary to prevent the fixed position from shifting due to the movement of the tail cord 10. When the detection device 11 is fixed to the tail cord by a strong tightening method, the inside of the tail cord 10 is pushed and the wiring is easily disconnected. Therefore, in the present embodiment, the detection device 11 is fixed to the tail cord by adhesion.

  In the detection device 11, acceleration sensors are arranged in the three-axis directions of the X, Y, and Z axes. In the present embodiment, the detection device 11 is attached so that the Z-axis is parallel to the longitudinal direction of the tail cord 10 as described above. In the present embodiment, for convenience of explanation, the one closest to the car 1 of the detection device 11 shown in FIG. 1 is attached to the first detection device 11a, hereinafter referred to as the other end of the tail cord 10. They are referred to as a second detection device 11b, a third detection device 11c, and a fourth detection device 11d in this order. In the present embodiment, the number of detection devices 11 is described as four, but the number of detection devices 11 is changed according to the length of the tail cord 10 and the required accuracy.

  When the position of the tail cord 10 is detected in the elevator apparatus E configured as described above, the following procedure is taken.

1) First to fourth detection devices 11a, 11b, 11c, and 11d are attached to the tail cord 10 at equal intervals.
2) Stop the car 1 to the lowest floor.
3) Let the position of the acceleration sensor at this time be the origin O1.
4) Next, stop the car 1 on the top floor.
5) The position of the acceleration sensor at this time is stored in the memory of the position calculation device 5 as the origin O2. The position information of the origin O1 and the origin O2 is obtained by a construction drawing or actual measurement.

  Since the tail cord 10 moves to either the position near the wall surface of the hoistway 20 or the center of the car 1 as the car 1 moves up and down, for example, when the car 1 is on the lowermost floor, the detection device 11 is almost not used. Is near the wall surface of the hoistway 20, and conversely when the car 1 rises to the top floor, most of it is near the bottom of the car.

  The control panel 3 can obtain the movement of the tail code 10 from the speed information of the car 1 and the position information of the tail code 10 sent from the position calculation device 5. For example, looking at the information from the first detection device 11a when the car 1 moves from the lowest floor to the top floor, when the lowest floor stops, from the state stopped near the wall surface of the hoistway 20, It accelerates downward in the car, further accelerates upward in the hoistway 20, and stops on the top floor. By integrating the acceleration data, the moving speed of the acceleration sensor can be known, and the moving distance and position can be calculated by further integrating.

  Similarly, the second to fourth detection devices 11b to 11d can similarly calculate the movement distance and the position from the acceleration data, and can determine the position of the tail code 10 from these pieces of position information. The position calculation device 5 calculates or detects the position of the tail code 10, and the calculated position information is sent to the control device (CPU) of the control panel 3.

  The CPU of the control panel 3 can calculate the distance (including direction) between the tail code 10 and the equipment in the hoistway by combining the position information of the tail code 10 and the arrangement position information of the equipment in the hoistway 20. . Therefore, the control panel 3 suppresses the maximum speed of the car 1 when the distance is, for example, 10 to 20 cm, and stops to the nearest floor when the distance is less than 5 cm and performs a control operation such as standby. When the car 1 stops, the swaying of the tail cord 10 is stopped, and when the distance between the device and the tail cord 10 becomes 20 cm or more, it can be raised and lowered again during normal operation.

  In FIG. 3, the position calculation device 5 calculates the position of the tail code 10 from the acceleration data of the detection devices 11a to 11d, the control panel 3 calculates the distance between the tail code 10 and the equipment in the hoistway, and the elevator apparatus operates normally. It is a figure which shows the process sequence which sets whether it raises / lowers or performs control operation.

  In the figure, acceleration data of the tail code 10 is acquired based on sensor information of X-axis, Y-axis, and Z-axis acceleration sensors in the detection devices 11a to 11d (procedure 1). The acquired acceleration data is transmitted to the position calculation device 5, and the position calculation device 5 integrates the acceleration data in the X, Y, and Z axis directions and converts them into velocity data in the X, Y, and Z axis directions (procedure 2).

  Next, the position calculation device 5 integrates the velocity data in the X, Y, and Z axis directions to obtain the movement distance. A position from the origin position is obtained based on the movement distance, and position data (information) of the tail code 10 in the X, Y, and Z axis directions is obtained (procedure 3). The control panel 3 compares the position data (information) of the tail code 10 transmitted from the position calculation device 5 with the arrangement data (information) of the equipment in the hoistway and compares the position data (information) between the hoistway equipment and the tail code 10. Is calculated (procedure 4), and it is determined whether the distance is equal to or greater than a preset threshold (procedure 5). The threshold here is, for example, the aforementioned 5 cm.

  When the distance is less than 5 cm, the control panel 3 performs a control operation (procedure 6), and when it is 5 cm or more, performs a normal operation (procedure 7).

  Further, the acceleration data detected by the detection device 11 and the wind speed and wind direction data detected by the anemometer 30 and the anemometer 31 provided in the building (building) 40 where the elevator device 1 is installed are accumulated, or both are stored. It is also possible to accumulate the combined data and predict the fluctuation of the tail code 10 during a strong wind based on the accumulated data. For example, it is possible to simulate how much the tail cord 10 is swayed by the information on the wind speed (or wind power) and the wind direction at a certain time and the movement of the car 1. Therefore, based on this simulation, it is possible to predict the probability of execution of the control operation by combining the position information of the tail cord 10 and the information on the wind speed and direction of the wind blown on the building 40.

  If the signals from these detection devices 11 have a sampling rate of 10 kHz or more, the position information can be calculated from the acceleration data with high accuracy. Further, the origin information (O1, O2) can be reviewed based on the position information when the car 1 has stopped at the lowest floor for a long time such as at night, and a minute error can be reset.

  As for the attachment space | interval of each detection apparatus 11, about 5-10m is desirable. For example, when the moving distance of the car 1 is 100 m, the tail cord 10 moves about 50 m, which is about half. Therefore, about five detection devices 11 are preferably attached.

  Further, the tail cord 10 may be greatly shaken by a large earthquake and may be caught or contacted with a device in the hoistway 20. In the present embodiment, the state of the tail cord 10 as a whole is grasped by calculation by the detection devices 11 attached to the tail cord 10 at equal intervals. It can be grasped on the 5th side. Therefore, it is possible to find an abnormal part of the tail cord 10 early and easily check whether the tail cord 10 needs to be replaced.

  In the present embodiment, the detection device 11 is installed outside the tail cord 10, but may be incorporated inside the tail cord 10. In that case, power can be supplied by wire and data can be sent to the position calculation device 5 in the machine room 3.

  As described above, according to the present embodiment, the following effects can be obtained.

(1) In a control operation control device of an elevator device E (elevator) that performs control operation in the event of an earthquake or strong wind, it is set in advance with reference to the end portions of the tail cord 10 on the car 1 (car) side and the machine room 21 side. A plurality of detection devices 11 (acceleration detection means) that detect acceleration when the tail code is moved, and a position calculation device that obtains the position of the tail cord 10 based on acceleration information detected by the detection device 11 5 (calculation means), the position information obtained by the position calculation means 5 and the arrangement information of the equipment in the hoistway are compared, the distance between the tail cord 10 and the equipment in the hoistway is obtained, and based on the obtained distance And the control panel 3 (control means) for controlling the elevator apparatus E, so that the tail code 10 when the tail cord 10 is actually shaken by the position calculation device 5 is provided. 10 can be detected with high accuracy, and the control panel 3 obtains a distance between the positions of the tail cord 10 and the equipment in the hoistway and quickly determines the necessity of control operation from the distance. can do.

  This determination makes it possible to quickly shift to the control operation when the control operation is required, and as a result, it is possible to prevent the equipment in the hoistway from being damaged due to the swing of the tail cord 10.

  Furthermore, even if the tail cord 10 sways due to the combined vibration of the two during an earthquake or strong wind, the position of the tail cord 10 that is actually swaying is detected to determine whether or not the control operation is possible. Therefore, safe and efficient operation of the elevator is possible.

  Further, since the control operation is performed based on the distance between the two as described above, it is possible to reliably prevent the tail cord 10 and the equipment in the hoistway 20 from being caught.

  In addition, by restricting the maximum speed of the elevator by the control operation, the elevator device E can be safely moved up and down without stopping as much as possible.

(2) A threshold value is set for the distance, and the control panel 3 (control means) compares the threshold value with the distance to determine whether control operation is necessary. It is possible to prevent the device from being caught.

(3) Since the threshold value is set to a minimum distance at which the tail cord 10 is not caught in the equipment in the elevator, the tail cord 10 and the equipment in the hoistway 20 are reliably prevented from being caught. Can do.

(4) An anemometer 30 and an anemometer 31 (wind speed / wind direction detecting means) for detecting the wind speed and direction of the wind blown on the building 40 (building) are further provided, and the control panel 3 includes the position information of the tail code 10 and the anemometer. 30 and the information of the wind direction and direction detected by the anemometer 31 are combined to predict the probability of carrying out the control operation, so that even when the building 40 is exposed to strong wind, it is possible to operate the elevator safely and efficiently. Become.

(5) Since the preset intervals of the detection device 11 (acceleration detection means) are equal intervals, the position of the tail cord 10 can be detected with high accuracy.

  In the description of the effects in the above-described embodiment, the constituent elements in the claims are indicated in parentheses for each part of the present embodiment, or a reference numeral is attached, and the correspondence between the two is clarified.

  Furthermore, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention, and all the technical matters included in the technical idea described in the claims are all included. The subject of the present invention. The above embodiment shows a preferable example, but those skilled in the art can realize various alternatives, modifications, variations, and improvements from the contents disclosed in this specification, These are included in the technical scope described in the appended claims.

1 Car 2 Balance weight 3 Control panel (control means)
5 Position calculation device (calculation means)
10 Tail code 11 Detection device (acceleration detection means)
20 Hoistway 21 Machine room 30 Anemometer 31 Anemometer 40 Building (building)
E Elevator device

Claims (6)

In an elevator control operation control device that performs control operation during an earthquake or strong wind,
A plurality of detectors installed at intervals set in advance with reference to the end of the tail cord on the car side and the machine room side, and detecting the acceleration when the tail cord is moved;
Calculation means for determining the position of the tail code based on acceleration information detected by the detection means;
Control means for comparing the position information obtained by the computing means with the arrangement information of the equipment in the hoistway to obtain the distance between the tail cord and the equipment in the hoistway and performing the control operation of the elevator based on the distance When,
An elevator control operation control device comprising: In the elevator control operation control device according to claim 1,
A control operation control apparatus for an elevator, wherein a threshold is set for the distance, and the control means determines whether or not the control operation is necessary by comparing the threshold and the distance. In the elevator control operation control device according to claim 2,
The elevator control operation control apparatus according to claim 1, wherein the threshold value is set to a minimum distance at which the tail cord does not catch on the elevator furnace equipment. In the elevator control operation control device according to any one of claims 1 to 3,
It further comprises wind speed / wind direction detecting means for detecting the wind speed and direction of the wind blowing on the building,
The control means combines the position information of the tail cord and the information on the wind speed and the wind direction detected by the wind speed / wind direction detection means, and predicts the probability of execution of the control operation. Control device. In the elevator control operation control device according to any one of claims 1 to 4,
The elevator control operation control device, wherein the preset intervals are equal intervals. In the control operation control method of an elevator that performs control operation during an earthquake or strong wind,
Detecting the acceleration at the time of moving the tail cord by a plurality of detection means installed at intervals set in advance with respect to the end of the tail cord on the car side and the machine room side,
Based on the detected acceleration data, the position of the tail code is obtained by a calculation means,
The distance between the tailgate and the equipment in the hoistway is obtained by comparing the obtained position information and the arrangement information of the equipment in the hoistway, and the elevator is controlled based on the distance. Elevator control operation control method.