JPH0286574A - Elevator group management control device - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a group management control device for elevators, and particularly to a group management control device that performs control that satisfies multiple control objectives.

[Conventional technology]

Conventionally, elevator group management and control devices monitor each hall call online, take into account the service status of the entire hall call, and make optimal decisions to improve elevator operation efficiency and improve service for passengers getting on and off. A method is used to reduce the average waiting time by assigning calls to elevators. Recently, when selecting an elevator from among multiple elevators to which to assign a hall call, a variable parameter is added to the evaluation function for evaluating each elevator, and the variable parameter value is changed according to traffic demand. Then, using the obtained results, learn parameter values that satisfy the preset target values.
Japanese Patent Laid-Open No. 58-52162 discloses a method for executing call assignment control using parameters according to the operating status of the elevator.
No. 58-63668.

In this method, two control target values, waiting time and energy saving, can be set using switches and level commands from the building management system, and it is possible to evaluate stop calls in the vicinity of generated calls, and to increase the number of stop calls. This system introduces a stop system that prioritizes the allocation of generated hall calls to elevators, and an evaluation index. By appropriately changing the weighting coefficient of the stop call evaluation index, it is possible to obtain a weighting coefficient that optimizes the waiting time, and conversely, by increasing this weighting coefficient, an energy saving effect can be obtained. On the other hand, Japanese Patent Publication No. 62-70 and Japanese Patent Publication No. 62-71 also describe methods that take into consideration waiting time and energy saving;
Publication No. 9 includes an evaluation index that includes prediction of full capacity, and Publication No. 1987-47787 includes an evaluation index that includes at least one of the probability of failure in the forecast and the probability of full capacity. .

[Problem to be solved by the invention]

Among conventional technologies, those that have two control objectives: waiting time and energy saving can eliminate the dissatisfaction of each passenger by shortening the average waiting time, but there are still some problems. . Specifically, there may be long waiting times on certain floors at the same time every time, calls may be assigned to far away elevators even though there is a waiting elevator nearby, or large cargo such as wagons may was assigned to a crowded elevator even though the vehicle was in transit.
After the elevator departed, various complaints such as having to call again were generated, and these complaints were communicated to the building owner, manager, etc.

In addition, control target values other than waiting time, energy saving, waiting time and probability of fullness (probability of forecast failure) are not considered, and even though there are many other control targets, these control values are not considered in the building. Owner of.

It is difficult for administrators etc. to instruct them to do so, and
Multi-target control over various combinations was not possible.

Once a building has been delivered, in order to respond to various complaints, elevator users such as building owners and managers must request modifications from the elevator manufacturer, and the elevator manufacturer must make changes and additions to the program. I had to rewrite the ROM. This usually requires a lot of manpower and time, and furthermore, it is not possible to satisfy all the diverse demands of the users, such as passengers, building owners, and managers. Another problem was that it was difficult to present the effects of actually operating the elevator after changing the program.

As described above, there are restrictions on the resources available in each building, the number of elevators, capacity, elevator speed, etc., and inputting desired values that can be achieved within these restrictions requires a lot of trial and error and experience. Also.

It is difficult to quantify users' wishes without contradiction in advance. However, in the conventional technology, there is no idea of inputting the user's wishes, so there is no consideration given to the method of determining the wishes without contradiction, and it is difficult to realize control that matches the characteristics of the building in which it is installed. Met.

The purpose of the present invention is to express user requests in an easy-to-understand format.
The purpose of this invention is to solve this problem by making it possible to set control targets that are consistent among a wide variety of demands, directly incorporating them into the control system, and immediately reflecting them in the control. Another object of the present invention is to provide an elevator control device that allows users to easily add and delete various requested items.

[Means to solve the problem]

The above purpose is to set the control target value by having the importance of each target set at the same time, taking into account the same importance, and considering the control method that can satisfy the target value. By providing a control target value setting range determination unit that determines the setting @IyI, and providing a function to notify the setter of the response direction when a target value exceeding the setting range is set, it is possible to set control targets for three or more items. Values can be easily set, and a control method that satisfies the set target value can also be easily determined.

[Effect] In order to determine control target values while ensuring consistency between multiple control target items, the degree of interaction between each control target is determined in advance using a simulator and recorded in the form of a degree of association table. , control items to be set and their importance (priority)
Since the range of control target values that can be set is determined according to the settable target value and the target setter is notified of the range, unreasonable settings can be suppressed.

In addition, when a setter sets a goal that deviates from the 11 target setting range, by adding a function that notifies the setter of measures to satisfy the deviated goal, each goal is set with the understanding of the setter. Since control targets can be set, building managers can respond to problems in use.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 12.

FIG. 1 is a block diagram of an embodiment of the present invention. 1 is a group management control device that executes operation management control of a plurality of elevators, and 2 is a group of machine control devices that control individual elevators. It is composed of the No. 1 machine control device. Further, a hall call device 3 is installed in the elevator hall on each floor, and this signal is directly transmitted to the group management control device 1. Further, the separately provided input/output device 4 issues instructions to change the control target value, etc. It is also possible to output the result of executing group management control to the principal output device 4. Next, the operation within the group management control device 1 will be explained. The signal of the hall call device 3 installed in the hall on each floor,
And each machine control device 2A.

From 2B and 2C, information such as the position and direction of each elevator, the number of passengers getting on and off the car call 9, etc. is taken into the group management operation execution unit 1-1. If a new hall call signal is transmitted from the hall call device 3.

Based on various information transmitted from each unit control device 2A, 2B, and 2C, the current driving situation and the traffic flow pattern shown in Figure 3 are determined, and a control method corresponding to the closest traffic flow pattern is determined. Each control parameter is selected from the control table shown in FIG. 2, and the operating method and call assignment control recorded in the selected control table are executed. One of the operating methods here is to determine the service floor as shown in FIG. The shaded area in the diagram indicates the floors that each elevator can service. In addition, it refers to specifying things such as preferentially allocating multiple elevators to floors where users are concentrated, and changing door opening/closing times.

Next, in the call allocation control method, the control target setting unit 1-
Regarding the control target value set in step 4, items that can be evaluated using the call allocation evaluation formula (for example, waiting time 2 boarding time, degree of congestion in the car, reservation success rate, energy saving, information guidance transmission rate,
We have prepared multiple evaluation formulas for each control item (e.g., longevity rate), and select these evaluation formulas based on data such as elevator specifications and traffic flow patterns to evaluate each control target item for each unit. Find the value. A weighting coefficient is added to the obtained evaluation value according to the importance set, and the sum (or difference) of these is taken to obtain the overall evaluation value. This is to allocate hall calls.

Here, the traffic flow pattern is obtained by determining the state of movement from data on people getting on and off, and FIG. 3 shows a typical example thereof. For example, pattern A is a pattern that occurs during dispatch time, and most of the movement is upward from the standard floor. Pattern B, on the other hand, is a case where most of the flow of people is towards the standard floor at the time of leaving work. Pattern C is a pattern seen during the first half of lunch time, in which people concentrate on a specific floor of the cafeteria. In the second half of lunch, there is also a pattern in which people are dispersed from specific floors. Pattern D is seen during normal hours and involves a lot of movement between floors.

Next, the data learning unit 1-2 collected the data in the group management operation execution unit. Number of passengers getting on and off each floor (in units of 100 or 5 to 10)
(collected in minutes), waiting time for each hall call floor, car call service time (time from car call to arrival at destination floor), number of passengers in each car, number of call assignment changes, A learning data table is prepared for each item by statistically processing various data corresponding to the control target items shown in Fig. 5, such as the floors and number of passes of the assigned car, the floors and number of times long waiting occurs, etc. Record to.

The control program generation section 1-3 uses various learning data tables created by the data learning section and the control target setting section 1-3.
Using the control target value table created in step 4 (FIG. 6), the knowledge base for control strategy determination, and the inference function, a control method that satisfies the control target values recorded in the control target table is selected. Next, using the selected control method, a simulation is performed using a simulator built into the circuit, and optimal control parameters are determined based on the results.

The selected control method and control parameters are registered in the control table shown in FIG.

The control target setting unit 1-4 classifies the control target items and their values input from the input/output device 4 according to the usage environment of the elevator to create a control target value table.

In the control target setting range determination unit 1-5, the input/output device 4
The user is instructed to select the control target item to be set, and then asked to input the degree of importance (priority) of achieving each of the selected control target items. When inputting this importance level, an easy way to set it even if the goal setter is not familiar with group management control is to have the person set the importance points between two goal items by pairwise comparison. There are methods such as finding the unique values of the paired comparison matrix.

Depending on the input situation, the following first-order method can be considered as a method for determining the setting range of each control target. First, when using the conventional evaluation method of assigning calls that prioritizes waiting time, the degree of achievement of each input control target item is determined in advance by actual measurement or simulation, and that value is used as the standard target achievement value. It is recorded in the control target predicted value table shown in FIG. Furthermore, the maximum achieved value for each control item in the same state is determined and recorded in advance in the control target predicted value table.

The control target value setting range determination unit 1-5 determines the maximum achieved value of the input control target item with the highest degree of importance as amay,
The standard value of the control target item is a ave, and the degree of influence of the control target item with the highest degree of importance on other items B is aab.
(The degree of influence obtained using a simulator etc. is recorded in advance in the table shown in Figure 8, and selected from among the following.) Then, the maximum (or minimum) settable value bs of item B is the standard value of item B. Letting the control target value b ave be determined by the following equation.

1) s=baveX(1+aabX(amax/
aave))...(1) However, aab≠0 Here, when aab=o, it is considered that the maximum value b wax can be set for one item B, and the other terms are set for the target term of B. Find the maximum value (or minimum value) that can be obtained, and among them,
Set the larger value as the maximum settable value. Once this maximum value (or minimum value) is determined, the possible range is smaller (or larger) than the maximum value (or minimum value) of the settable values.
It is a value and is determined at will.

The above settable range is transmitted to the input/output device 4 and displayed on the device, and by setting a value within the set range, the goal setter will avoid setting an unattainable target value. In addition, if a target value that exceeds the target setting range is input, the target value setting range determination unit will judge and notify changes in importance, changes in target items, etc. There is also a function to notify the goal setter of things such as progress.

The above operation will be explained using a flowchart.

FIG. 9 shows the operation from inputting a control target to determining a target value. First, a command to create or change a control target is transmitted to the group management control device 1 (401). The current building specifications (4) are sent from the group management control device 1 to the input/output device 4.
02), send the elevator specifications (40:II), etc.
If any changes are necessary, the configurator makes corrections and sends the data to the group management control device 1. Next, the setter sets the time period or traffic flow in which the target should be achieved, and sends that information to the group management control device (404). Extract items whose settings are to be changed from among the control target items (405)
. However, in this extraction, the term of waiting time, which is a basic control item, must be included. The reason for this is that changing the target values of other target items often affects this waiting time term, making the waiting time extremely worse.

This is so that the person setting the service knows in advance how long the wait time will be so as to avoid complaints from users. In addition to setting the control items to be set, ask them to set the importance of each item.

When the above processing is completed, the control target value setting range is determined using the method described above using each set value and the child measurement achievement value table of each control item. Find it in 5. After determining this setting range, each control target value is input.

Possible methods for inputting this target value include a method in which settable values are expressed numerically for each control item, and the corresponding value is input from a keyboard, or a method using a graphic such as radar chart 1. FIG. 10 shows an example of a display screen when a radar chart is used.

In the figure, the standard values (each target item is connected with a solid line) and the settable area between each control target item are shown with diagonal lines. In this example, the demand for waiting time is high and the boarding time is often longer than the standard value, so the boarding time is shorter than the standard value.

In the case of input using a radar chart, input can be simplified by using a mouse or touch panel.

Next, it is determined whether each input control target value is within the set control target value setting range (407).
. If it exceeds the settable range, it will search for the best method that satisfies the criteria 408) and present it to you. A notification is made using the generation unit (409).

If the value is within the setting range, the input target value is transmitted to the control target setting section 1-4 (410).

However, if instructions are not accepted to areas other than the target setting possible area, the processes in steps 407, 408, and 409 become unnecessary, and a determination as to whether or not resetting is required is added before the process in 410. ' You can also do it.

The control target setting unit 1-4 determines the traffic flow pattern from the input control target value and the time period in which the target value is to be achieved, changes the contents of the corresponding control target value table to the input value, Alternatively, create and record a new control target value table. Next, here, the control program generation section 1-3
Notify that the control target value table has been changed or newly established.

Next, the control program generation unit 1-3 determines a control method and control parameters that satisfy the control target value. The flowchart of the operation is shown in FIG. 11. First, traffic flow and time zone are read (301). Next, the control target value is read (302). A control method that satisfies this target value is selected using a preset knowledge table and inference function (303).

Next, using the selected control method, a simulator built in the control program generation unit 1-5 performs a simulation (304). Here, we performed several simulations by varying each control parameter, and obtained results corresponding to each control target item.

The control parameter that achieves the highest degree of achievement with respect to the target value is selected (305). The results determined in this process are registered in the control table, and the process here ends. The above describes the processing flow when information regarding a new or changed control target value table is transmitted, and here, the following processing is normally performed. FIG. 11 shows the processing flow. First, a traffic flow pattern is generated from the traffic flow data created by the data learning section (310). Next, it is determined whether the generated traffic flow pattern is a new pattern or a pattern that has been W8ed before (312). If it is a new traffic flow pattern, the two closest traffic flow patterns are selected (313). For the selected traffic flow pattern, the registered control methods are compared and it is determined whether the methods are the same (314).

If the control method is the same, a new traffic flow pattern,
Then, a simulation is performed by changing the control parameters using the control method (315). Next, the degree of achievement of the control target is calculated from the control target value set for the same time period and the simulation result (316). Next, each degree of achievement is compared and the control parameter with the best degree of achievement is selected (317), and its control method and parameters are registered for the traffic flow pattern. If two types of control methods are selected, one of the control methods is selected as the first control method and that method is extracted from the control table (318). next,
315-317 explained earlier about the method of withdrawal.
The following processing is performed (319).

Subsequently, data related to the second control method is retrieved (320), which is the same as in the case of the first control method (315).
- 317 are performed (321).

Next, the best target achievement values for each control method are compared, and the control method and control parameters with the greater degree of achievement are selected (322). The selected control method and control parameters are registered in the control table as the control method and control parameters for the new traffic flow pattern.

In addition, in the judgment 312 of whether or not it is a new traffic flow pattern, if it is judged that it is the same as the conventional traffic flow pattern, the control parameters are changed and the traffic flow is simulated using the actual measurement data.・(324) Do. Next, the degree of achievement of the set control target is calculated from the simulation results (325).

The best control parameters are determined from the degree of achievement thus obtained (326), and the control method and control parameters are registered (327).

As described above, according to this embodiment, when three or more control target values are set, the settable range of each target value can be clarified, so that the targets can be easily set.

There is no need to prepare a large number of knowledge bases to select a control method that satisfies the set target value.

Speed of selection of control method can be improved.

Next, another embodiment of the present invention will be described. first.

In setting the control target value, we adopted a method of specifying the settable area, but another method is to calculate the total settable points for the set control items and perform a comprehensive evaluation each time the setter sets each target value. The method is to subtract points from the set value, and if the overall evaluation score becomes zero midway through, the target value of the previously set item can be decreased and the target value of the selected control target item can be set. When the setting of all items is completed, a setting completion signal is sent to the control target setting section 1-4, and the setting is completed.

When using this method, it is necessary to normalize each control target value, assign weights to each one to normalize the temperature, and calculate the degree of association between control target items as in the method described above. There is. Furthermore, if there is even one independent target item with no degree of association regarding the overall score, it is necessary to treat it as an independent setting item and provide a setting area separate from the overall evaluation value.

FIG. 13 shows an example of the setting when radar chart 1 is used. When indicated by a solid line, the total points are
Also, although there were 80 points, as shown by the broken line, we would like to place emphasis on wanting to get on the car quickly (waiting time) and wanting to get on the empty car (congestion level in the car), and to be notified of reserved cars early (reservation notification time).
This method is effective when setting a target value using a graphical display such as radar chart 1, etc., as shown in the example below. You can easily set goals.

When calculating this comprehensive evaluation score, the following methods can be considered as methods for normalizing each control item. If the minimum serviceable average waiting time for each control item or traffic flow pattern or time zone is 25 seconds and the maximum average waiting time is 70 seconds, then the minimum average waiting time is 100 and the maximum average waiting time is 25 seconds. Normalize as O. Other terms can be normalized in the same way.

The configuration of this system has so far been explained by directly inputting control target values, but in reality it is difficult for building managers etc. to set individual control target values. It is necessary to convert the manual target value into an actual control target value so that it can be set as a normalized value as shown in FIG. Therefore, as shown in FIG. 14, a sensory target conversion section 1-6 is provided, which converts the input sensory target value into a control target value and performs the above-mentioned processing. In this case, the control target setting range determination unit described above uses each conversion function or the value recorded in the conversion table to control the control determined in advance using a simulator or the like according to the specifications of the building and the environment in which the elevator is used. By adding the maximum (or minimum) settable value from the weighting coefficients determined from the degree of association between items, one conversion function can accommodate various conditions.

Figure 15 shows an example of a conversion function. (1) converts the desire to board early into an average waiting time. If this conversion function is f(tl), the minimum value that can be set for this function is By adding the value a1, a target value corresponding to the busy time period can be obtained.

For example, if you enter 100 as the desired value, a value of 40 seconds will be set, and call assignments that exceed 40 seconds will be prevented as much as possible.

In addition, (2) corresponds to the desire to ride in an empty car.
When setting the degree of congestion in the car.

If you enter the setter as 100, the DL miscellaneous level will be 25% at the hotel.
The system operates so as not to allocate calls to the above cars. Although this example deals with building type and traffic demand separately,
In reality, restrictions based on building types need to be treated at the same time as traffic demand. In this way, if human power is used in the form of sensitivity, there is no need to consider restrictions on human power.

〔Effect of the invention〕

According to the present invention, it is possible to prevent in advance from setting an unrealizable target value, it is possible to reduce the burden of setting a target value, and it is possible to set a target value close to a desired value.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a diagram showing an example of a control table, Fig. 3 is a representative example of a traffic flow pattern, Fig. 4 is a side entrance of a service floor, The figure shows the side entrance of the control target item corresponding to the sensitivity target item, FIG. 6 shows the side entrance of the control target value table, and FIG. 7 shows an example of the control prediction table.
FIG. 8 is an opening speed table side port, FIG. 9 is a flowchart for setting a control target, FIG. 10 is a control target setting range presentation side port using a radar chart, and FIG. 11 is a flowchart for determining a control method corresponding to a control target. Figure 12 is a flowchart of control program generation based on control results, Figures 13-
FIG. 15 is a diagram for explaining another embodiment of the present invention. 1...Group management control device, 1-1...Group management operation execution unit, 1-2...Data learning unit, 1-3...Control program generation unit, 1. -4...Control target setting section, 1-5
...Target setting range determination unit, 2...Unit control device group,
3... Hall call device, 4... Input/output device.

Claims (1)

[Scope of Claims] 1. In an elevator group management control device that controls a plurality of elevators in service with multiple floors, a control target setting unit capable of setting target values of three or more control target items; When setting the target value in the control target setting unit, a control target setting area determining unit that determines a setting area of the target value, and a control program that selects and determines a control method that satisfies the set target value. A group management control device for elevators, comprising a generation section and an operation control section that performs control using the determined control method. 2. The control target setting area determination unit determines the input control target items and priorities for the control target items, and the previously set building specifications, each traffic demand, or
2. The elevator group management control device according to claim 1, wherein a setting area for each control target value is determined using a table of degrees of association between each control target value for each time period. 3. The control target setting area determination unit determines the input control target items and the priorities for the control target items, and the information set in advance in the control device by building specifications, by each traffic demand, or by time. A patent claim characterized in that a settable total value of set control target items is determined using a relationship table of each band-specific control target value, and the control target can be set within the range of the total value. The group management control device for elevators according to item 1. 4. A settable total value or a settable range of the control target value is displayed on an input device, and can be changed and displayed according to the set value of the target. Group management control device for elevators. 5. When a target value exceeding the control target setting range is input, means is provided for notifying the inputter by sound or display that the target value limit has been exceeded. Group management control device for elevators. 6. The above three or more control target items include average waiting time in the hall, average boarding time, degree of congestion in the car, predicted accuracy rate,
Long waiting rate, information transmission rate, energy saving, full passage rate,
2. The elevator group management control system according to claim 1, wherein other items are selected from car call first arrival rate, transport capacity, etc., including the waiting time. 7. In an elevator group management control device that controls multiple elevators in service with multiple floors, when setting control goals for three or more items, the values set in the sensitivity goals are used as the values used in the group management control device. An elevator group management control device comprising: a sensitivity converter for conversion; and a control target value settable area determination unit for determining a settable range of the control target value upon conversion and instructing the control target value to be converted within the range. . 8. The elevator group management control device according to claim 7, wherein the sensitivity target value is expressed in Japanese or as a numerical value obtained by normalizing the control target. 9. In converting the sensitivity target value to the control target value, a conversion function was created with weights for each target item, or based on data obtained from buildings of the same type, depending on the specifications of the building. 9. The elevator group management control device according to claim 8, wherein the control is performed using a converted value. 10. In converting the sensitivity target value to the control target value,
a time period or traffic demand that satisfies the control target value;
Claim 8, characterized in that the conversion is performed using a conversion function or conversion value that has a weight corresponding to each target item depending on the elevator usage environment such as the set number of elevators, capacity, speed, etc. group management control device for elevators.