JP2005281003A - Elevator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator control device capable of changing an excessive loading detecting value with respective story floors; and to provide the elevator control device capable of uniformly setting an operation condition with respective story floors. <P>SOLUTION: This elevator control device has an elevator driving motor, an elevator control board 109 for making a car travel via the elevator driving motor in response to a hall call or a car call, a car side load detecting device 103 for detecting a car side load applied to the whole car, an excessive loading determining processing part 115 for outputting an excessive loading signal by determining that the car side load detected by the car side load detecting device exceeds a predetermined load, and an elevator operation control part 111 for prohibiting door closure of the car or the starting of the car in response to output of the excessive loading signal. The elevator control device immobilizes elevator use in excessive loading; and has a load detecting correction value registering table for storing a correction value of a load detecting value detected by the car side load detecting device with respective story floors, and an excessive loading detecting changing value registering table for changing the correction value with respective story floors stored in the load detecting correction value registering table by input from an artificial operation means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an elevator control device, and more particularly to an elevator control device capable of appropriately changing a load value for determining overloading depending on the floor position or the use of the floor.

  In general, rope-type elevators are provided with overload detection means for safety. For example, when a passenger enters the car at 110% or more of the rated load, the overload detection means detects overload and alarms such as a buzzer. And safety means are provided to prevent the car from starting due to the door being kept open and preventing the rope from breaking due to overloading.

  Also, not only rope type but also hydraulic type, rack type, linear type elevators, etc., leaving running due to overloading may cause running characteristic abnormality due to insufficient torque of drive system, etc. If an abnormality occurs, it may be determined that the drive system has failed and confinement due to an emergency stop may occur.

  In addition, if the load on the elevator increases to near the overload set for the elevator when a passenger enters the car from a hall on a floor, the full load detection is performed after the car leaves the hall on that floor. A method is also widely adopted in which the means is operated, and the next floor and subsequent floors perform a full-passage control that does not respond when the hall call is full. When such a control method is adopted, it often happens that the same floor becomes full, and in the hall that is ahead of the floor in the direction of travel, passengers go to the elevator until the passenger in the car descends. You can't get in. Therefore, Japanese Patent Laid-Open No. 2-193879 counts the number of times that a hall on a specific floor is fully packed, and when the counted number exceeds a predetermined number, the overload set value switching means detects overload. Switch overload information to the control means so that it is set a predetermined amount lower than the rated load, so that the waiting for hall passengers on the floor ahead in the direction of travel is less than the overload installation value. In addition, a configuration is disclosed in which it is possible to prevent a long waiting time for a hall waiting customer on a specific floor.

  In addition, as an overload detection means, a method of detecting an overload by detecting an in-car load value or hydraulic pressure of hydraulic oil for driving the car by an analog sensor and determining the detected value is adopted. .

  By the way, in the conventional technology configured to detect the entire load on the car side using the car side load detecting means as described above, the rope load and the tail cord load are added in addition to the car load. There is a problem that even if the load is in the car, the value of the car-side load detection changes depending on the car position, in other words, the floor position (height) where the car is located. Further, in a hydraulic elevator using a plunger, the weight of the plunger and hydraulic oil varies depending on the position of the car.

  On the other hand, in the prior art configured to detect the load in the car under the car floor and detect the load in the car, the load of the tail cord is applied to the car floor depending on the car shape, and the car floor is pulled downward. May deform in shape. When the car floor is deformed in this way, the detection value by the load detecting means installed between the car floor and the car bottom surface may be lower than the actual value depending on the car position. Alternatively, the car load may change depending on the passenger's boarding position, and the car load detection value also changes due to a stop shock, the occurrence of an unbalanced load on a person or baggage, or hysteresis.

  If the wrong car call or mischief hall call is registered when these phenomena occur, for example, if the load detection value changes to a large value while moving to the floor where the car call is registered, it arrives Overloading will be detected on the floor and the elevator will not start. That is, even if the number of passengers does not increase or decrease with respect to the number of passengers at the time of starting the car, it becomes impossible to start due to a change in the load detection value. The only way to get rid of this problem is to get passengers down for the increased amount. Even if it is normal car call registration, if the load detection value changes, it will be insufficient if there are only one passenger after arriving at the destination floor, and even if there is no need to get off, the load detection means will be excessive. There is a possibility that the safety means described above operates and issues a buzzer alarm until loading is no longer detected. A further problem is the case of an automobile elevator. In other words, the load detection means detects overloading due to a load change of the vehicle elevator that has arrived at the destination floor, and if the arrival floor is full, it becomes impossible to move. Furthermore, when a car that gets off the upper floor returns due to a change in the load of shopping, it becomes overloaded, and it becomes impossible to return to the first floor of the lobby, and it becomes necessary to carry out the baggage, or maintenance personnel manually operate it The elevator will have to be driven to the desired floor. These are considered to be due to the load detection condition changing for each floor.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide an elevator control device capable of changing the overload detection value for each floor. Another object is to provide an elevator control device that can uniformly set the operating conditions for each floor.

  In order to achieve the above object, the first means includes an elevator driving means, an operation control means for causing the car to travel through the elevator driving means in response to a hall call or a car call, and a car side added to the entire car. A car-side load detecting means for detecting a load, an overload judging means for judging that the car-side load detected by the car-side load detecting means has exceeded a predetermined load, and outputting an overload signal; And an overload control means for prohibiting the closing of the car or the departure of the car according to the signal output, in an elevator control device for disabling use of the elevator during overloading, detected by the car-side load detection means. A storage means for storing the correction value of the load detection value for each floor, and a change for changing the correction value for each floor stored in the storage means by input from the artificial operation means Characterized in that it comprises a stage.

  The second means is characterized in that, in the first means, the changing means sets an error of a load detection value for each floor by the change.

  As described above, according to the present invention, the load detection error that cannot be calculated depending on each floor is input by the artificial operation means, and the correction value stored in the storage means is changed, so that the loading standard for each floor is constant. Can be.

  Embodiments of the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is a control block diagram for explaining the processing of the overload detection means according to the present invention, and FIG. 2 is a schematic configuration diagram showing the overall configuration of the elevator control system according to the embodiment. In FIG. 2, the elevator control system responds to the hall call on each floor and registers each floor hall call registration means 201 for registering the upward hall call or the downward hall call, and the car for registering the car call for each floor in response to the car call. Call registration means 202, each floor hall call registration means 201, elevator drive motor 203 that drives the elevator in response to registration of car call registration means 202, and car information transmitted to elevator control panel 109 as an elevator control device to be described later And a car position detection sensor (encoder) 117 for detecting the position of the car 101, and an in-car load detection device 102 for detecting a passenger load in the car 101. Yes.

  The elevator control panel 109 is provided with an overload control unit 112, and when a load value detected by a car load detection sensor 104 described later reaches a predetermined load or more, a buzzer 204 installed in the car 101 is sounded. A warning is issued and the door is left open. Alternatively, overload detection processing such as outputting a warning message set in advance via a speaker 105 described later is performed.

  In order to perform such overload detection processing, as shown in FIG. 1, a car internal load detection device 102 mainly controlled by the car top control device 106 and a predetermined message are output in the car 101 by voice. A voice synthesizer 107, a speaker 105, and a door driving device 121 are provided. The in-car load detection device 102 includes a car load sensor 104 attached to the back surface of the floor in the car and the load detection device 103. The in-car load detection device 102 compares the data detected by the in-car load sensor 104 in the load detection device 103, calculates what percentage of the rated load is, and calculates the calculated data. The data is input to a microcomputer (microcomputer) 110 in the elevator control panel 109 via the car control device 106 and the tail cord 108. At the time of this input, processing necessary for transmission is performed by the transmission control unit 122. In the microcomputer 110, the detection values input to the load detection value input unit 113 are processed by the load detection value processing unit 114 and the overload determination processing unit 115, respectively, as processed in the flowchart of FIG. Then, the overloading process is executed by the overloading control unit 112. At that time, in order to perform overload determination for each floor, data obtained by the car position detector 117 composed of a rotary encoder is input to the car position control unit 119, and the microcomputer 110 always receives the output from the car position control unit 119. I know the car position.

  If the overload control unit 112 determines that the vehicle is overloaded when the elevator stops, the elevator operation control unit 111 is instructed not to output a drive command signal to the motor drive device 116, and at the same time the door opening / closing control unit 118 opens the door. The command and the in-car announcement command are transmitted to the car control device 106 via the transmission control unit 122. As a result, a door opening operation is executed by the door driving device 121, and at the same time, a message for informing the passenger that the overloading is registered in advance in the speech synthesizer 107 is output from the speaker 105.

  On the other hand, if the elevator is a hydraulic elevator, the hydraulic oil pressure value detected by the hydraulic pressure detection device 120 is converted into a load value, and the changed value is input to the load detection value input unit 113 of the overload control unit 112. Then, what percentage of the load is calculated with respect to the rated load is calculated, and in the same way, in the case of overload, a door opening message and a voice message are output.

  3A and 3B are explanatory diagrams showing detection reference values and registration tables. FIG. 3A is an overload detection reference value (KA1T) for setting a reference value for overload detection, and FIG. 3B is an overload detection. The overload detection change value registration table (KAT) for registering the overload detection change data for correcting the reference value (KA1T) for each floor, FIG. It is a load detection correction value registration table (HST) for replacing with a constant load detection value every time.

  The overload detection reference value (KA1T) is generally widely used as a reference for overload detection in a rope-type elevator, generally indicating a value indicating 110% of the rated load. On the other hand, in the overload detection change value registration table (KAT), a data storage area (KAT (0) to KAT (n)) for the floor data with the lowest floor or the highest floor as a reference is secured. In this area, it is possible to reset the change value for each floor according to the usage and the degree of request. In the load detection correction value registration table (HST), a data storage area {HST (0) to HST (n)} for the floor data based on the lowest floor or the highest floor is secured and registered in this area. By using the correction formula or correction value, the load detection value itself is calculated and processed by the calculation means in the microcomputer 110, in other words, by the load detection value processing unit 114, and the deviation of the load detection value is corrected. A load detection correction value for replacement with the load detection value is registered. The data set in this load detection correction value registration table (HST) is the load detection value itself when operating in a no-load state for each floor, so the error is recorded for each floor. It is possible by setting.

  The registration data shown in FIG. 3 can be reset on site by rewriting the ROM of the elevator control device. In addition, if a switch means or data input means that can be operated only by a specific person such as an administrator is provided and the registered data can be reset when this means is operated, the problem caused by the load change described above can be prevented. Can respond quickly and improve serviceability to customers.

  In the elevator control apparatus roughly configured as described above, overloading is determined according to the processing procedure shown in the flowchart of FIG.

  In this processing procedure, first, in step S401, a floor signal (POGI) is created based on the lowest floor or the highest floor. In this example, the floor signal (POGI) will be described based on the lowest floor. Based on the generated floor signal (POGI), in step S402, the data {KAT (POGI) registered in the overload detection change value table in FIG. 3B in the overload reference value (KA1T) in FIG. } Is added (load detection value processing unit 114) by the calculation means (overload control unit 112) in the microcomputer 110, and the overload detection value (KASEKI) is calculated. That is, when the overload reference value (KA1T) is 110 (%) and the car is at the lowest floor (floor signal (POGI) is 0), the data registered in the overload detection change value registration table (KAT) When {KAT (0)} is 5 (%), the overload detection value (KASEKI) is 115%. If you want to set the overload detection value (KASEKI) lower (105%), set the overload reference value (KA1T) to 100 (%) and register it in the overload detection change value registration table (KAT). If the data {KAT (1)} is 5 (%), the overload detection value (KASEKI) can be easily changed such that the overload detection value (KASEKI) is 105%.

  The determination of the overload detection value (KASEKI) and the load detection value calculated in this way takes into account changes in the load due to vibration during movement of the car or stop shock immediately after stopping, etc., and the car stops in the door zone. (S403).

  In step S <b> 404, when the car stops in the door zone, the car load detection value (KAJ) is input from the load detection device 103. When the elevator driving means is driven by hydraulic control of a hydraulic elevator that drives a car by sending hydraulic oil, the load detecting device 103 can also use a measured value of the hydraulic pressure that sends the hydraulic oil as a car-side load detection value. When the tension of the rope that drives the car is measured, the measured value may be used as the car-side load detection value. In this case, the load of the entire car is detected instead of the load in the car.

  The car load detection value (KAJ) and the data {HST (POGI)} registered in the load detection correction value registration table are subtracted by the calculation means (overload control unit 112) in the microcomputer 110 (load detection value processing unit 114). And this is taken as the car load detection value (KAJH). In the load detection correction value registration table (HST), by setting the load detection error for each floor so that the load detection value (KAJH) in the car for each floor is constant, the car load for each floor is constant. A detection value (KAJH) is obtained.

  In S405, the overload detection value (KASEKI) in S402 and the load detection value (KAJH) in S404 are determined by the data comparison means (overload determination processing unit 115) in the microcomputer, and the overload detection value (KASEKI) is determined. ) Is small, normal operation is continued and door closing permission and car departure are permitted (step S406). On the other hand, if the overload detection value (KASEKI) is large, an alarm such as a buzzer is issued as an overload detection, and the door continues to open, making it impossible to start the car (step S407).

  Therefore, according to this embodiment, it is possible to change the overload detection value for each floor, and by making the load detection value in the car constant for each floor, the loading standard for each floor is constant. In addition, it is possible to individually determine overloading for each floor.

  Based on the determination result of overload detection, two overload detection change tables (KAT) are prepared for ascending operation and descending operation, and they are switched according to the operation direction by switching means (not shown). In this way, it is possible to separately determine overloading during the car ascending operation and overloading during the descent operation.

  Further, if the floor signal (POGI) in step S401 is changed according to the car position obtained by the car position detector 117 in FIG. 1, it becomes possible to determine overloading for each car position, for example, stop when the car is stopped. If the overload detection value is increased before a shock occurs, an error in overload determination can be prevented even if a load change occurs.

  In this embodiment, the overload is determined by detecting the load in the car. However, as described above, the same process can be performed by detecting the car load of the entire car.

It is a control block diagram for demonstrating the process of the overload detection means based on the Example of this invention. It is a schematic block diagram which shows the whole structure of the elevator control system which concerns on an Example. It is explanatory drawing which shows an overload detection reference value, an overload detection change value registration table, and a load detection correction value registration table. It is a flowchart which shows the determination processing procedure of the overload in an Example.

Explanation of symbols

101 Car 102 Car Load Detection Device 103 Load Detection Device 104 Car Load Sensor 105 Speaker 106 Car Control Device 108 Tail Code 109 Elevator Control Panel 110 Microcomputer (Microfilm)
111 Elevator Operation Control Unit 112 Overload Control Unit 113 Load Detection Value Input 114 Load Detection Value Processing 115 Overload Judgment Processing 116 Motor Drive Device 117 Car Position Detector 118 Door Open / Close Control Unit 119 Car Position Control Unit 120 Hydraulic Pressure Detection Device 121 Door Drive device

Claims (2)

An elevator driving means, an operation control means for causing the car to travel through the elevator driving means in response to a hall call or a car call, a car side load detecting means for detecting a car side load applied to the entire car, and the car It is determined that the car-side load detected by the side load detection means has exceeded a predetermined load, and an overload determination means for outputting an overload signal, and a car door close or car according to the output of the overload signal. With an overload control means that prohibits departure, in an elevator control device that disables the use of an elevator during overloading,
Storage means for storing the correction value of the load detection value detected by the car-side load detection means for each floor;
Changing means for changing the correction value for each floor stored in the storage means by input from the artificial operation means;
An elevator control device characterized by comprising:   2. The elevator control device according to claim 1, wherein the changing means sets an error of a load detection value for each floor by the change.

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