JP2008239275A - Elevator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator control device, capable of correctly correcting a car load value without being affected by aging, non-linearity characteristics, noise, etc., of an elevator system. <P>SOLUTION: A car load correction value storage part 9 stores the car load correction value for correcting the car load. A car load correction value learning part 8 updates the car load correction value stored in the car load correction value storage part 9 based on a car load detection value outputted from a load detection part 7. A car load correction part 10 selects the car load correction value stored in the car load correction value storage part 9, and corrects the car load detection value outputted from the load detection part 7 based on the car load correction value. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator control device that determines a car load correction value for correcting an elevator car load value.

  The elevator is provided with a scale device for measuring the load in the car. When such a scale device is provided at a coupling portion of a cage and a rope, a coupling portion of a rope and a building, etc., an error due to a floor or a traveling direction occurs due to an influence of a rope, a control cable, or the like. In any case, depending on the response speed of the scale device, it may be affected by the previous scale value. In order to cope with such a problem, for example, in Patent Document 1, in the no-load state in the car, the elevator car is moved to the lowest floor, and the first load mass by the load detection device on the lowest floor is obtained. And the elevator car is moved to the top floor, the mass difference from the second load mass by the load detection device on the top floor is obtained, and the lowest floor and the top floor that are known in advance by the individual specifications of the elevator The load mass in the car is detected by dividing the rope unbalance amount by the mass difference and calculating a conversion coefficient for converting the output value from the load detection device into the mass value.

JP 2002-104753 A

  However, in the conventional elevator control device, it is not possible to correct an error caused by a rope unbalance amount at each floor, a traveling state immediately before the car, or a load state. In the case where it is provided at the end, the load is lighter on the uppermost floor than the actual load and heavier than the actual output on the lowermost floor. In addition, when a rope is provided at the end of the rope, there is a problem that an error due to the direction of the acceleration / deceleration of the car due to the immediately preceding load or traveling direction occurs due to the characteristics such as the rope between the cage and the friction of the moving part was there.

  The present invention has been made to solve the above-described problems, and provides an elevator control device that can accurately correct a car load value without being affected by an aging change, nonlinear characteristics, noise, or the like of an elevator system. The purpose is to obtain.

  An elevator control device according to the present invention includes a car load correction value learning unit that updates a car load correction value stored in a car load correction value storage unit based on a car load detection value output from a load detection unit, and a car. A car load value correction unit that selects a car load correction value stored in the load correction value storage unit and corrects the car load detection value output from the load detection unit based on the car load correction value; Is.

  In the elevator control device according to the present invention, the car load correction value learning unit updates the car load correction value stored in the car load correction value storage unit. The car load value can be accurately corrected without being affected.

Embodiment 1 FIG.
1 is a block diagram showing an elevator system to which an elevator control apparatus according to Embodiment 1 of the present invention is applied.
In the figure, the elevator system includes a car 1, a counter weight 2, a rope 3, a hoist 4, a pulley 5, a scale device 6, a load detection unit 7, a car load correction value learning unit 8, a car load correction value storage unit 9, A car load value correction unit 10, a car control unit 11, a number of people calculation unit 12, and an operation management unit 13 are provided.

  The car 1 is an elevator elevator car on which predetermined personnel can ride, and the counterweight 2 is a weight for balancing with the car 1. The rope 3 is a rope for raising and lowering the car 1, and the car 1 and the counterweight 2 are suspended by the rope 3 via the pulley 5. The hoisting machine 4 moves the car 1 up and down by driving the rope 3. Further, the pulley 5 is also provided at a predetermined position between the hoisting machine 4 and the counterweight 2. The scale device 6 is a device for measuring the weight of the car 1 provided at the end of the rope 3.

  The load detection unit 7 is a functional unit that captures the measurement value of the scale device 6, and the car load correction value learning unit 8 outputs the car load detection value w that is the output value of the load detection unit 7 and the operation management unit 13. This is a functional unit that updates the car load correction value adj based on the car state S to be played. The car load correction value storage unit 9 is a storage unit that accumulates the car load correction value adj updated by the car load correction value learning unit 8. The car load value correction unit 10 includes a car load detection value w output from the load detection unit 7, a car load correction value adj stored in the car load correction value storage unit 9, and a car output from the operation management unit 13. This is a functional unit that calculates the corrected car load value Wadj based on the state S. The car control unit 11 is a control unit that controls the hoisting machine 4 and the car 1 using the corrected car load value Wadj based on a command from the operation management unit 13. The number-of-people calculating unit 12 is a calculating unit that calculates the number of passengers and the number of people getting off the vehicle based on changes in the number of people in the car and the corrected car load value Wadj from the corrected car load value Wadj. The operation management unit 13 is a management unit that determines a car operation according to the number of people in the car and the number of people getting on and off, and outputs a command to the car control unit 11. Here, the state S of the car refers to the stop of traveling of the car 1, the floor of the car 1, the stopping direction of the car 1, the stopping time of the car 1, and the open / closed state of the door.

  The elevator control device including the load detection unit 7 to the operation management unit 13 is realized by a computer. The load detection unit 7, the car load correction value learning unit 8, and the car load value correction unit 10 to the operation management unit 13 include: It is composed of software corresponding to each function and hardware such as a CPU and memory for executing the software. The car load correction value storage unit 9 is configured by a storage device such as a semiconductor memory.

Next, operation | movement of the elevator control apparatus of Embodiment 1 is demonstrated. In addition, since the raising / lowering operation | movement of the cage | basket | car 1 by the hoisting machine 4 is the same as the past, the description is abbreviate | omitted and it demonstrates focusing on control operation | movement.
First, the learning operation of the car load correction value learning unit 8 will be described in detail.
For example, as shown in FIG. 1, when the scale device 6 is provided at the rope end on the building fixing side, the load on the uppermost floor is lighter than the actual load, and the lower floor is output heavier than the actual load. Further, when a scale is provided at the end of the rope, depending on the characteristics of the rope 3 between the car 1 and the scale device 6 and the friction of the moving part, it depends on the direction of the acceleration / deceleration of the car 1 due to the immediately preceding load and traveling direction. An error occurs. Therefore, the car load correction value learning unit 8 learns the error correction value for each position of the car 1, the load immediately before the car 1, or the traveling direction of the car 1. Here, an example of the correction value learning method will be described.

  When learning the car load correction value, a correct load value with respect to the output of the load detection unit 7 is required, but the correct load value is generally unknown. However, in the state where the elevator hall call and the car call are not registered at all, the car 1 is generally unmanned and can be estimated as an unloaded state. Therefore, learning is performed using the value of the load detection value of the load detection unit 7 in the no-load state as the car load correction value adj. Here, the car load correction value adj is stored in the car load correction value storage unit 9.

FIG. 2 is an explanatory diagram showing the car load correction value adj stored in the car load correction value storage unit 9. As shown in FIG. 2, the car load correction value adj is stored in the memory for each car position, car direction, and car load at arrival. In FIG. 2, N represents the top floor and W represents the car loading capacity.
In FIG. 2, the direction of the car represents the direction at the time of arrival of the car. In the case of a system in which the error becomes smaller after a sufficient time has elapsed since the arrival of the car, it is in a non-directional arrival state after a certain time has elapsed after arrival. And In a system that does not have such characteristics, the non-directional arrival memory area may be omitted. Further, even in a system having a characteristic that allows no-load arrival after a lapse of a certain time after arrival, the non-directional arrival memory area may be omitted. Whether or not a correction value for non-directional arrival is necessary can be designed by examining the characteristics of the system through experiments or simulations in advance.

  Further, in a system in which the influence of each car load upon arrival is small, an error correction value may be provided for each car position and car direction. Further, in a system in which the influence of the car direction is small, the car position and the car load upon arrival may be similarly provided. Similarly, items with less influence can be excluded, and each other item can have a car load correction value. Whether these items are necessary or not can be designed by examining the characteristics of the system by experiments or simulations in advance.

The car load correction value learning unit 8 obtains the load detection value w from the load detection unit 7 and simultaneously obtains the car state S at that time from the operation management unit 13. The car load correction value adj is updated from these values according to the following procedure.
FIG. 3 is a flowchart showing a learning operation in the car load correction value learning unit 8.
First, in step ST101, based on the traveling state of the car 1 obtained from the operation management unit 13, the process proceeds to step ST103 when the car is stopped, and to step ST102 when the car is traveling. In step ST102, the previous car state is set to travel, and the correction value learning process is terminated. In step ST103, the previous car state is confirmed. If the previous car state is not stopped, the process proceeds to step ST104, and the load detection value w is set as the load x upon arrival. On the other hand, if the previous car state is stopped in step ST103, no processing is performed, and the process directly proceeds to step ST105.

  In step ST105, based on the car call, the hall call, and the door state obtained from the operation management unit 13, the presence / absence of the car call, the hall call, and the door closing are confirmed, and the car call and the hall call are not generated. If the door is closed, the process proceeds to step ST106. On the other hand, if at least one of the car call or the hall call is generated or the door is open in step ST105, the process proceeds to step ST110. That is, in such a case, the correction value is not updated in steps ST106 to ST109. In step ST106, the car load correction value corresponding to the current elevator state is read from the car load correction value storage unit 9, and the process proceeds to step ST107 as the car load correction value adj.

In step ST107, the correction value error Eajj is calculated as the difference between the load detection value w and the car load correction value adj based on the following equation (1), and the process proceeds to step ST108.
Correction value error (Eadj) = load detection value (w) −car load correction value (adj) (1)
Here, the above expression (1) is an expression in which the true load value is 0 in the following expression.
Correction value error (Eadj) = {load measurement value (w) −car load correction value (adj)} − (true load value)
In step ST108, it is determined whether or not the absolute value of the correction value error Eajj is equal to or less than a preset threshold value TH. If it is equal to or less than the threshold value TH, the process proceeds to step ST109. If it is more than threshold TH, it will progress to step ST110. Here, the threshold value TH is a threshold value for preventing learning when the correction value error Eadj is too large. This is because the learning of the car load correction value corresponds to the time-dependent change of the elevator system, the non-linear characteristics, and the noise compensation, and it is assumed that the update amount in one learning is not so large. However, for example, when an event that is not normally assumed occurs, such as when a person remains in the car 1 even though the call is not registered, the correction value error Eadj becomes large. When learning is performed in such a case, the car load correction value adj becomes an inappropriate value. Therefore, a threshold is provided for the correction value error Eajj to avoid learning inappropriate correction values. This threshold value TH is obtained by experimentally determining the characteristics of the system, and an appropriate value is determined in advance according to the range of values that may cause an error. good.

  If the initial value of the car load correction value adj stored in the car load correction value storage unit 9 cannot be set appropriately, the TH value is set to a very large value, for example, 10000 kg only for the first time. After that, it may be a small value.

In step ST109, the car load correction value adj is updated according to the following equation (2), and the process proceeds to step ST110.
Car load correction value after update = α × (load detection value (w)) + (1−α) × (car load correction value (adj)) (2)
In the equation (2), α is a learning coefficient and is a real number that satisfies 0 ≦ α ≦ 1.
In step ST110, the previous car state is set to stop, and the correction value learning process ends.

Next, the initial value setting of the correction value stored in the car load correction value storage unit 9 will be described.
For example, the initial values of all correction values may be set to 0. In this case, as described above, the car load correction value learning unit 8 needs to set TH to a very large value only at the first learning of each car load correction value. It is also possible to set a general value in advance by simulation or experiment. Furthermore, the car load correction value learning unit 8 can be provided with a correction value initial setting function to perform initial setting. The correction value initial setting function is a method in which only representative points of the correction values in the table of FIG. 2 are actually measured and the other values are complemented. For example, the car load detection value w1 when the top floor arrives without load, the car load detection value w2 when the bottom floor arrives without load, and a weight of an arbitrary weight Xkg is loaded and the weight is reached after arrival at the top floor. The car load detection value w3 after removing the weight, and the car load detection value w4 after removing the weight after loading the weight of an arbitrary weight Xkg and measuring the weight as a representative point. A linear function may be obtained from one representative point by regression calculation, and an initial value of a car load correction value relating to the weight at the time of arrival at another floor or the car may be obtained from the linear function. At this time, the linear function F is expressed by the following equation (3).
Correction value initial value (IAdj) = A × (floor n) + B × (arrival load x) + C (3)
In Equation (3), A, B, and C are constants and can be calculated by least square estimation using w1, w2, w3, and w4.

In addition, when the equation (3) is obtained only from the top floor and the bottom floor, since the equation for each arrival direction of the car cannot be obtained, the same equation (3) is used regardless of the arrival direction of the car. The initial value of is calculated.
In addition, in the case of obtaining the expression (3) for each direction, with respect to the upward arrival, the car load detection value w1 at the time of arrival at the top floor with no load and the arrival at the first floor above the lowest floor with no load at the top. Load the car load detection value w2 and the weight of any weight Xkg and load the car load detection value w3 after removing the weight after arrival at the top floor and load the weight of any weight Xkg After arriving one floor above the lowest floor in the direction, the car load detection value w4 after removing the weight is measured as a representative point to obtain the upper formula (3).
Further, regarding the downward direction, the car load detection value w1 when arriving at the floor one level lower than the top floor in the no load and the downward direction, the car load detection value w2 when arriving at the bottom floor with no load, and any After loading the weight of Xkg and arriving at the floor one level below the top floor in the downward direction, load the car load detection value w3 after removing the weight and the weight of any weight Xkg After arrival at the lowest floor, the car load detection value w4 after removing the weight is measured as a representative point, and the downward expression (3) can be obtained.

Next, the operation of the car load value correction unit 10 will be described.
In the car load value correction unit 10, the car load correction value adj corresponding to the car state S is obtained from the correction value stored in the car load correction value storage unit 9 based on the car state S obtained from the operation management unit 13. Then, the car load detection value w, which is the output of the load detector 7, is corrected based on the equation (4).
Car load value after correction (Wadj) = Detected load value (w) −Car load correction value (adj) (4)

  Based on the corrected car load value Wadj output from the car load value correction unit 10, the number of people calculation unit 12 calculates the number of people in the car 1, the number of passengers, and the number of people getting off, and these values are calculated by the operation management unit 13. To send. In the operation management unit 13, based on the value calculated by the number calculation unit 12, the car operation is determined according to the number of people in the car and the number of passengers, and a command is sent to the car control unit 11. . The car control unit 11 controls the car 1 and the hoisting machine 4 based on the command from the operation management unit 13 and the corrected car load value Wadj output from the car load value correction unit 10. I do.

  As described above, according to the elevator control device of the first embodiment, the load detection unit that detects the value of the scale device that measures the load of the elevator and outputs the value as the car load detection value, and the correction value of the car load. A car load correction value storage unit for storing the car load correction value and a car load correction value for updating the car load correction value stored in the car load correction value storage unit based on the car load detection value output from the load detection unit. Car load value correction that selects the car load correction value stored in the value learning unit and the car load correction value storage unit, and corrects the car load detection value output from the load detection unit based on the car load correction value Therefore, the car load value can be accurately corrected without being affected by the change with time of the elevator system, non-linear characteristics, noise, or the like. As a result, the ride comfort can be improved by controlling the car based on the obtained correct car load. Further, by estimating the number of people in the car and the number of people getting on and off based on the correct car load and determining the operation of the car, it is possible to improve the transport capacity and waiting time.

  Further, according to the elevator control apparatus of the first embodiment, the car load correction value storage unit sets the car load correction value for each state of at least one of the car position, the immediately preceding traveling direction, and the immediately preceding car load detection value. The car load value correction unit stores the car load correction value stored in the car load correction value storage unit based on at least one state of the car position, the immediately preceding traveling direction, and the immediately preceding car load detection value. Since the selection is made, it is possible to correct the error due to the direction of the acceleration / deceleration of the car due to the immediately preceding load or traveling direction, and it is possible to accurately correct the car load value.

  In addition, according to the elevator control device of the first embodiment, the car load correction value learning unit updates the car load correction value only when the car is unloaded, there is no car call, there is no landing call, and the door is closed. Since this is done, the car load correction value can be updated easily and accurately.

Embodiment 2. FIG.
In the second embodiment, the storage method in the car load correction value storage unit 9 in the first embodiment and the learning method in the car load correction value learning unit 8 are changed. Since the configuration on the drawing is the same as that of FIG. 1 of the first embodiment, FIG.
The car load correction value storage 9 in the second embodiment has at least the immediately preceding car load detection value as a variable among the car position, the immediately preceding traveling direction, or the immediately preceding car load detection value, and the car load correction value. Stores information on the car load correction formula for performing calculations. The car load correction value learning unit 8 is configured to update the car load correction formula stored in the car load correction value storage unit 9 based on the car load detection value w output from the load detection unit 7. Yes. Since other configurations are the same as those in the first embodiment, description thereof is omitted here.

The car load correction value storage unit 9 of the first embodiment stores the car load correction value adj in the form of the table shown in FIG. 2, but in the second embodiment the car load correction value adj is used as a correction formula. Learning is performed by the learning unit 8, and the correction formula is updated and stored. This correction equation is expressed as equation (5).
Car load correction value (adj) = Func (floor n, car arrival direction upd, load weight x upon arrival x) (5)
Specifically, the Func in the above formula (5) can be obtained in two line formats, for example, for each direction. In this case, a correction equation such as equation (6) is obtained.

In this case, the car load correction value storage unit 9 stores all the coefficients A _{1 to} C _{3 in the} equation (6). In addition, the car load correction value learning unit 8 has no car call or car call, and the car load detection value w newly measured when the door is closed and the car for a plurality of representative points related to preset n and x. Using the load correction value adj, the equation (6) for the corresponding direction upd is corrected.

FIG. 4 is a flowchart illustrating an example of the correction procedure.
In FIG. 4, steps other than steps ST206, ST207, and ST209 are the same as the procedure of FIG. In Embodiment 2, if there is no call registration and the door is closed in step ST105, the correction values for the representative point and the current state are obtained from the correction formula in step ST206. The number of representative points and how to take representative points are determined in advance. For example, the following points can be prepared.
UPD = representative point used in upward direction Pu1: (upd = upper, n = lowermost floor + 1, x = 0 kg)
Pu2: (upd = upper, n = lowermost floor + 1, x = Wkg)
Pu3: (upd = upper, n = middle floor, x = 0 kg)
Pu4: (upd = upper, n = middle floor, x = Wkg)
Pu5: (upd = upper, n = top floor, x = 0 kg)
Pu6: (upd = upper, n = top floor, x = Wkg)

UPD = representative point used in the downward direction Pd1: (upd = lower, n = lowermost floor, x = 0 kg)
Pd2: (upd = lower, n = lowermost floor, x = Wkg)
Pd3: (upd = bottom, n = middle floor, x = 0 kg)
Pd4: (upd = bottom, n = middle floor, x = Wkg)
Pd5: (upd = bottom, n = top floor-1, x = 0 kg)
Pd6: (upd = lower, n = top floor-1, x = Wkg)

UPD = representative point used in no direction Pn1: (upd = none, n = lowermost floor, x = 0 kg)
Pn2: (upd = none, n = lower floor, x = Wkg)
Pn3: (upd = none, n = central floor, x = 0 kg)
Pn4: (upd = none, n = central floor, x = Wkg)
Pn5: (upd = none, n = top floor, x = 0 kg)
Pn6: (upd = none, n = top floor, x = Wkg)

Next, in step ST207, the correction value error Edj is calculated as a difference between the load detection value w and the car load correction value adj (upd, n, x) based on the equation (7), and the process proceeds to step ST108.
Correction value error (Eadj) = load detection value (w) −car load correction value (adj (upd, n, x)) (7)

In step ST108, if the correction value error is within TH, the process proceeds to step ST209, and based on the car load correction value for the representative point prepared for the current direction and the car load correction value for the current state, (6 ) Is obtained by least square estimation and updated as a new correction equation.
Further, the initial value of equation (6) can be set by providing the car load correction value learning unit 8 with the correction value initial setting function described in the first embodiment.

  Other car load value correction operations in the car load value correction unit 10, the number calculation in the number calculation unit 12, and the control operation by the car control unit 11 are the same as those in the first embodiment.

  As described above, according to the elevator control device of the second embodiment, the load detection unit that detects the value of the scale device that measures the load of the elevator and outputs the value as the car load detection value, and the position of the car or the previous travel A car load correction value storage unit that stores information on the car load correction formula that performs at least the previous car load detection value as a variable and calculates the car load correction value, and the car load. A car load correction value learning unit that updates the car load correction formula stored in the correction value storage unit based on the car load detection value output from the load detection unit, and a car load stored in the car load correction value storage unit A car load value correction unit that corrects the car load detection value output from the load detection unit based on the correction formula is included. The Sarezu, it is possible to accurately correct the car load value, it is possible to reduce the memory capacity of the car load correction value storing unit than the configuration of the first embodiment.

Embodiment 3 FIG.
In the third embodiment, the corrected car load value Wadj, the load detection value w, the car load correction value adj, the number of people in the car, the number of passengers, getting off, obtained by the method of the first or second embodiment described above. At least one or more people are displayed in the car 1.

FIG. 5 is a configuration diagram of an elevator system to which the elevator control device according to Embodiment 3 is applied.
In FIG. 5, the elevator system includes a car 1, a counter weight 2, a rope 3, a hoist 4, a pulley 5, a scale device 6, a load detection unit 7, a car load correction value learning unit 8, and a car load correction value storage unit 9. The car load value correction unit 10, the car control unit 11, the number of people calculation unit 12, the operation management unit 13, the car load display unit 14, and the car load display mode setting unit 15 are implemented. Since it is the same as that of the structure of Embodiment 1 or Embodiment 2, description here is abbreviate | omitted.

  Based on the display mode setting of the car load display mode setting means 15, the car load display means 14 is displayed on a display device provided in the car 1 or a display section on the control panel (these are not shown). This is means for obtaining the corrected car load value Wadj, the load detection value w, and the car load correction value adj from the car load value correction unit 10 and displaying at least one of these values. The car load display means 14 is configured to display values numerically. Further, it may be configured to display only when a preset threshold value is exceeded. Or you may comprise so that it may display in order one digit using the floor display indicator in the cage | basket | car 1, and the 7 segment indicator (these illustration is abbreviate | omitting illustration) on a control panel. In addition, when shifting to the car load value display mode, a buzzer or announcement display may be performed to alert the personnel in the car 1.

  The car load display mode setting means 15 is a functional unit that sets and cancels the car load display mode. In this case, the car load display mode is a selection display of the corrected car load value Wadj, the load detection value w, and the car load correction value adj. Further, the setting in the car load display mode setting means 15 may use a code number consisting of the order of pressing the destination floor button or door opening / closing button (not shown) in the car 1. A switch may be provided exclusively for maintenance personnel in the car 1. A dedicated switch on the control panel may be provided. Further, the setting may be performed by a rotary switch or a jumper plug on the control panel.

FIG. 6 is a configuration diagram of an elevator control device for displaying the number of people in the car, the number of passengers, and the number of people getting off, calculated from the car load value.
In FIG. 6, the car load display means 14 is configured to display at least one of the number of people in the car, the number of passengers, or the number of people getting off from the number calculation unit 12 on the car 1 or on the control panel. The car load display mode setting means 15 is a functional unit for setting and canceling the car load display mode. In this case, as the car load display mode, the number of people in the car, the number of passengers, and the number of people getting off are selected and displayed. It is.

  As described above, according to the elevator control apparatus of the third embodiment, at least one of the corrected car load value, load detection value, or car load correction value calculated with the car load correction value is displayed. Since the car load display means is provided, various information can be easily known by a user, a maintenance engineer, or the like. Thus, for example, the car load correction result and the output value can be confirmed in the car or in the machine room while moving the floor by the destination floor button in the car, so that the maintenance engineer can check the weighing performance. It becomes easy. In addition, by having the maintenance engineer and the general user ride at the same time, it is possible to easily check the difference in the calculation result when the number of passengers is changed, and it is easy to explain the riding load detection function to the user. Is obtained.

  In addition, according to the elevator control device of the third embodiment, the number calculation unit that calculates at least one value among the number of people in the car, the number of passengers, or the number of people getting off based on the output value of the car load value correction unit, Since there is a car load display means for displaying at least one of the number of persons calculated in the department, the corrected car load value, the load detection value, or the car load correction value, a user or a maintenance engineer Etc. can easily know various information. Thus, for example, the car load correction result and the output value can be confirmed in the car or in the machine room while moving the floor by the destination floor button in the car, so that the maintenance engineer can check the weighing performance. It becomes easy. In addition, by having the maintenance engineer and the general user ride at the same time, it is possible to easily check the difference in the calculation result when the number of passengers is changed, and it is easy to explain the riding load detection function to the user. Is obtained.

It is a block diagram which shows the elevator system to which the elevator control apparatus by Embodiment 1 of this invention is applied. It is explanatory drawing which shows the car load correction value stored in the car load correction value storage part of the elevator control apparatus by Embodiment 1 of this invention. It is a flowchart which shows the learning operation | movement of the car load correction value learning part of the elevator control apparatus by Embodiment 1 of this invention. It is a flowchart which shows the learning operation | movement of the car load correction value learning part of the elevator control apparatus by Embodiment 2 of this invention. It is a block diagram which shows the elevator system to which the elevator control apparatus by Embodiment 3 of this invention is applied. It is a block diagram which shows the other example of the elevator system to which the elevator control apparatus by Embodiment 3 of this invention is applied.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 car, 6 scale apparatus, 7 load detection part, 8 car load correction value learning part, 9 car load correction value storage part, 10 car load value correction part, 11 car control part, 12 people calculation part, 13 operation management part, 14 Car load display means.

Claims (6)

A load detection unit that detects the value of a scale device that measures the load of the elevator and outputs it as a car load detection value;
A car load correction value storage unit that stores a car load correction value that is a correction value of the car load;
A car load correction value learning unit that updates the car load correction value stored in the car load correction value storage unit based on the car load detection value output from the load detection unit;
A car load value correction unit that selects the car load correction value stored in the car load correction value storage unit and corrects the car load detection value output from the load detection unit based on the car load correction value. And an elevator control device. The car load correction value storage unit stores the car load correction value for each state of at least one of the car position, the immediately preceding traveling direction, and the immediately preceding car load detection value.
The car load value correction unit selects the car load correction value stored in the car load correction value storage unit based on at least one state of the car position, the immediately preceding traveling direction, and the immediately preceding car load detection value. The elevator control device according to claim 1. A load detection unit that detects the value of a scale device that measures the load of the elevator and outputs it as a car load detection value;
A car load that stores information on a car load correction formula that performs at least a car load detection value as a variable and calculates a car load correction value among the car position, the previous traveling direction, or the car load detection value immediately before. A correction value storage unit;
A car load correction value learning unit that updates the car load correction formula stored in the car load correction value storage unit based on the car load detection value output from the load detection unit;
An elevator control device comprising: a car load value correction unit that corrects a car load detection value output from the load detection unit based on the car load correction formula stored in the car load correction value storage unit.   4. The car load correction value learning unit updates the car load correction value only when the car is unloaded, no car call, no hall call, and in a door-closed state. Elevator control device.   2. A car load display means for displaying at least one of a car load value after correction calculated by a car load correction value, a load detection value, or a car load correction value. The elevator control device according to any one of claims 4 to 5. A number calculation unit that calculates at least one value among the number of people in the car or the number of passengers or the number of people getting off based on the output value of the car load value correction unit;
And a car load display means for displaying at least one of the number of persons calculated by the number of persons calculating unit, the corrected car load value, the load detection value, or the car load correction value. The elevator control device according to any one of claims 1 to 4.

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