JP2005263384A - Elevator group supervisory operation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator group supervisory operation system, automatically analyzing the group supervisory operation service status, and always displaying the service quality on a group supervisory operation control device. <P>SOLUTION: This elevator group supervisory operation system includes: a service state detecting means 1B1 for determining the service state of two or more cars 30; a service level determination means 1B2 for determining the service level from the service state; a service storage means 1B3 storing the service state and the service level; a service level warning means 1B4 related to the service level determination means 1B2; and a CPU display device 1E related to the service level warning means. The service state includes at least one among the number of landing calls, average wait time, rate of long waiting time, forecast change rate and wrong forecast rate. The service storage means 1B3 retains data of every fixed period and the current data, and the service level warning means 1B4 generates a warning display command to the CPU display device 1E when the service level is changed to the deterioration exceeding a fixed reference. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an elevator group management system for a building in which a plurality of elevator cars are put into service, and particularly when analyzing the group management service status of an elevator car, group management control without connecting a separate device and collecting data. The present invention relates to a technique for constantly displaying service quality on a device.

In order to analyze the operation state of a plurality of elevator cars, a conventional elevator group management system connects an elevator group management control device and an operation state data collection device and collects operation state data (for example, Patent Document 1).
Thus, in the conventional system, the operation state is analyzed based on the data collected through the operation state data collection device, and the service state of each elevator car is determined.

JP-A-4-18225

  In the conventional elevator group management system, in order to analyze the service status, it is necessary to prepare an operation status data collection device first, and even after data acquisition, it is necessary to analyze by human judgment. For this reason, there is a problem that it takes a lot of time and labor.

  The present invention has been made to solve the above-described problems, and can be held in the group management control device by reducing the amount of information related to the group management service, and can determine whether the service is good or bad. By providing the means and means for determining a change in the building traffic flow due to secular change, an elevator group management system capable of instantaneously determining the deterioration of the service level without separately preparing an operation state data collection device is obtained. For the purpose.

  The elevator group management system according to the present invention includes a service state detection means for determining a service state of a plurality of elevator cars and a service level from the service state in an elevator group management system for a building where a plurality of elevator cars are in service. Service level determination means, service storage means for storing service status and service level, service level warning means related to service level determination means, and CPU display device related to service level warning means, the service status is , The number of hall calls, the average waiting time, the long waiting rate, the forecast change rate, and the unforeseen rate, and the service storage means holds the data for each fixed period and the current data, and provides a service level warning. Means are that the service level will deteriorate beyond a certain standard When it changes to, and generates a warning display command to the CPU display device.

  According to the present invention, when analyzing the group management service status of the elevator car, it is possible to always display the service quality on the group management control device without connecting a separate device and collecting data.

Embodiment 1 FIG.
FIG. 1 is a block diagram schematically showing an overall configuration of an elevator group management system according to Embodiment 1 of the present invention.
In FIG. 1, the group management control device 10 efficiently manages and controls a plurality of elevator cars (hereinafter simply referred to as “cars”) 30 via the respective vehicle control devices 20.
The hall call registration device 40 is installed at each hall in the building where each car 30 is put into service. When the user presses the UP button 4A or the DN button 4B, the hall call control information is sent to the group management control device 10. To be notified.

  The group management control apparatus 10 shown in FIG. 1 includes a communication interface 1A, service state detection means 1B1, service level determination means 1B2, service storage means 1B3, service level warning means 1B4, service change detection means 1B5, Service change warning means 1B6, allocation determination means 1C, operation control means 1D, and CPU display device 1E are provided.

The communication interface 1 </ b> A performs communication with each of the control devices 20.
The service status detection means 1B1 calculates and determines the current service status based on the information from each vehicle control device 20.
The service level determination unit 1B2 determines the service level based on the detection information of the service state detection unit 1B1.
The service storage unit 1B3 stores information determined (detected) by the service state detection unit 1B1, the service level determination unit 1B2, and the service change detection unit 1B5.

The service level warning unit 1B4 causes the CPU display device 1E to display the determination result by the service level determination unit 1B2.
The service change detection unit 1B5 determines that the building service state has changed based on the information stored in the service storage unit 1B3.
The service change warning unit 1B6 displays the detection result of the service change detection unit 1B5 on the CPU display device 1E.

The assignment determining means 1C calculates an assigned car corresponding to the hall call in response to the operation of the hall call registration device 40, and determines the destination floor corresponding to the car call in response to the operation of the operation panel (not shown) in the car 30. calculate.
The operation control unit 1D issues an operation command to each car 30 according to the calculation result of the allocation determination unit 1C.

  The CPU display device 1E controls each means in the group management control device 10, and performs warning display as required based on information of the service level warning means 1B4 and the service change warning means 1B6.

Service state detection means 1B1, service level determination means 1B2, service change warning means 1B4, service change detection means 1B5, and service change warning means 1B6 are related to service storage means 1B3.
Further, the service change warning means 1B4 and the service change warning means 1B6 are related to the CPU display device 1E.
And

That is, as will be described later, the service storage unit 1B3 holds data for a certain period and current data.
The service level warning means 1B4 generates a warning display command to the CPU display device 1E when the service level changes in a worsening direction exceeding a certain standard.

  The service change detection unit 1B5 detects the service change state by comparing the past service state and service level stored in the service storage unit 1B3 with the current service state and service level.

  The service change warning unit 1B6 determines whether or not there is a large change of a predetermined amount or more in the building usage status from the past to the present based on the comparison result of the service change detection unit 1B5. Generates a warning display command.

  Further, the service state detection means 1B1, service level determination means 1B2, service storage means 1B3, service level warning means 1B4, service change detection means 1B5 and service change warning means 1B6 are provided for the entire building or a plurality of zones. Each process is executed for every specific floor, every direction, every direction, every time zone or every specific time zone.

2 and 3 are flowcharts showing specific processing operations of the service state detection means 1B1, and FIG. 3 shows the service state calculation processing step S3 in FIG. 2 more specifically.
The processing routines of FIGS. 2 and 3 are executed when the power is turned on or when the counting period exceeds one month. Further, the service state detection unit 1B1 executes the processing routine of FIG. 2 for each set time zone and direction.

The group management control device 10 has the following setting information in advance as memory information in the CPU display device 1E.
First, the zone setting information includes the following three floor ranges (A1) to (A3).
(A1) Zone 0 floor range (all floors),
(A2) 1st zone floor range (for example, B2 floor-1st floor),
(A3) Second zone floor range (for example, 2nd to 15th floors).

The time zone setting information includes the following three time zones (B1) to (B4).
(B1) 0th time zone (all time zones),
(B2) 1st time zone (for example, 8:00 to 9:00),
(B3) Second time zone (for example, from 12:00 to 13:00),
(B4) Third time zone (for example, 18:00 to 19:00).

Furthermore, the direction setting information includes the following three directions (C1) to (C3).
(C1) 0th direction (UP and DN directions),
(C2) First direction (UP direction),
(C3) Second direction (DN direction).

In the zone setting, a specific first floor where congestion is expected may be designated in advance.
Further, if there is a margin in the memory storage capacity in the group management control device 10, the number of zone settings and the number of time zone settings may be increased.
Furthermore, when the congestion situation differs between a holiday and a weekday as in an office building, data may be aggregated only on a weekday.

The service status detection unit 1B1 detects the service status for each of the zone information, time zone information, and direction information set as described above.
That is, the group management control device 10 receives the landing call generation status, the forecast change status, and the car arrival status from each of the vehicle control devices 20, and according to the procedures of FIGS. Aggregate time, long waiting rate, unforeseen rate, and forecast change rate.

Hereinafter, the processing operation of the service state detection unit 1B1 according to the first embodiment of the present invention shown in FIG. 1 will be described with reference to FIGS.
First, in FIG. 2, when the power is turned on or when the counting period exceeds one month, various parameters such as the number of hall calls, the total waiting time, the number of long waits, the number of missed forecasts, the number of forecast changes, etc. are initialized. To “0 clear” (step S1).

  Subsequently, when a hall call is generated in the zone, time zone, and direction currently focused on (step S2), the service state detection means 1B1 executes a service state calculation process (step S3) (see FIG. 3). To do.

In FIG. 3, the service state detection means 1B1 first acquires the time of occurrence of the hall call and starts measuring the waiting time (step S31).
Subsequently, it is determined whether or not there is a forecast change (step S32). If it is determined that the assigned car assigned to the hall call has been changed and there is a forecast change (ie Yes), the number of forecast changes is calculated. Increment (increase by "1") (step S32a), proceed to step S34.

On the other hand, if it is determined in step S32 that there is no forecast change (that is, No), it is subsequently determined whether another car has arrived first (step S33).
In step S33, if it is determined that a car other than the assigned car for the hall call has arrived at the hall call floor first and the other car has arrived first (ie, Yes), it is considered that the forecast has been lost. Then, the number of out-of-forecasts is incremented (step S33a), and the process proceeds to step S34.

On the other hand, if it is determined in step S33 that no other car has arrived first (ie, No), the process immediately proceeds to step S34.
In step S34, the assigned car or another car arrives at the landing call floor.
Thus, when the car 30 arrives at the landing call generation floor, the waiting time is acquired from the time difference between the arrival time of the car 30 and the landing call generation time (step S35).

Subsequently, the latest waiting time accumulation (current value) is updated by adding the waiting time acquired this time to the previous waiting time accumulation (previous value) (step S36), and the number of hall call occurrences is incremented (step S36). S37).
Further, it is determined whether or not the waiting time acquired this time is 60 seconds or more (step S38), and if it is determined that the waiting time is 60 seconds or more (that is, Yes), the long wait occurrence count is incremented. (Step S38a), the processing routine of FIG. 3 is terminated.
On the other hand, if it is determined in step S38 that the waiting time is less than 60 (ie, No), the processing routine of FIG. 3 is immediately terminated without executing step S38a.

  Hereinafter, returning to the processing of FIG. 2, the service state detection unit 1B1 uses the following formulas (1) to (4) to calculate the average waiting time [seconds], long waiting rate [%], forecast loss rate [%], forecast The change rate [%] is calculated (step S10).

Average waiting time [seconds] = accumulated waiting time / number of hall calls (1)
Long wait rate [%] = 100 x number of long waits / number of hall calls generated (2)
Unforecasted rate [%] = 100 × Number of unforeseen forecasts / Number of landing call occurrences (3)
Forecast change rate [%] = 100 × Number of forecast changes / Number of landing call occurrences (4)

  Next, the service storage unit 1B3 stores the average waiting time, the long wait rate, the forecast loss rate, and the forecast change rate obtained from the formulas (1) to (4) together with the number of hall calls generated in the current month (step S11). ).

Finally, it is determined whether or not the totaling period has ended by determining whether or not the data totaling period has exceeded a predetermined period (one month) (step S12), and determining that the one-month totaling period has ended (that is, Yes) If so, the process returns to the initial setting step S1 to repeat the above process.
On the other hand, if it is determined that the counting period is less than one month and has not yet ended (that is, No), the process returns to step S2 and the above process is repeated.

FIG. 4 is a flowchart showing the processing operation of the service level determination means 1B2, and the processing routine of FIG. 4 is started once a day.
FIG. 5 is a flowchart showing the determination operation of the service change detection means 1B5.
The processing routine of FIG. 5 is started once a day, and processing is performed for each set zone, direction, and time zone.

The service level determination unit 1B2 determines the level of the service state detected by the service state detection unit 1B1, and also stores various parameters stored in the service storage unit 1B3 (average waiting time, long waiting rate, forecast loss rate, forecast change) The rate is read out once a day according to the procedure shown in FIG.
Hereinafter, a specific determination operation of the service level determination unit 1B2 will be described with reference to FIG.

In FIG. 4, first, it is determined whether or not the average waiting time is 30 seconds or more (step S41). If it is determined that the average waiting time <30 seconds (that is, No), then the long waiting rate is 8%. It is determined whether or not this is the case (step S42).
On the other hand, if it is determined in step S41 that the average waiting time is equal to or greater than 30 seconds (ie, Yes), a warning for the average waiting time is set (step S41a), and the process proceeds to step S42.

In step S42, if it is determined that the long waiting rate <8% (that is, No), then it is determined whether or not the forecast loss rate is 5% or more (step S43).
On the other hand, if it is determined in step S42 that the long wait rate ≧ 8% (that is, Yes), the long wait rate warning is set (step S42a), and the process proceeds to step S43.

If it is determined in step S43 that the forecast loss rate is less than 5% (that is, No), it is subsequently determined whether the forecast change rate is 5% or more (step S44).
On the other hand, if it is determined in step S43 that the forecast loss rate ≧ 5% (that is, Yes), the warning prediction rate warning is set (step S43a), and the process proceeds to step S44.

If it is determined in step S44 that the forecast change rate is less than 5% (that is, No), then at least one warning among the average waiting time, the long waiting rate, the forecast loss rate, and the forecast change rate is set. It is determined whether or not there is (step S45).
On the other hand, if it is determined in step S44 that the forecast change rate ≧ 5% (that is, Yes), the forecast change rate is set as a warning (step S44a), and the process proceeds to step S45.

  If it is determined in step S45 that none of the warnings of the average waiting time, the long wait rate, the forecast loss rate, and the forecast change rate are set (that is, No), the setting state at that time is set to the average waiting time of the current month. It is stored in the service storage means 1B3 as warning information for time, long waiting rate, forecast loss rate, and forecast change rate (step S46).

  On the other hand, if it is determined in step S45 that any of the warning settings of the average waiting time, long waiting rate, forecast loss rate, and forecast change rate is set (ie, Yes), the service level warning setting is performed. (Step S45a), the process proceeds to Step S46.

  Finally, the service level warning means 1B4 displays warnings (see FIG. 6) of the average waiting time, long waiting rate, forecast loss rate, and forecast change rate (step S47), and the processing routine of FIG.

The service change detection unit 1B5 determines a service change state based on the monthly information stored in the service storage unit 1B3 from the service level determination unit 1B2.
That is, the determination process is performed once a day according to the procedure of FIG.
Hereinafter, a specific determination operation of the service change detection unit 1B5 will be described with reference to FIG.

In FIG. 5, first, it is determined whether or not the current time is the measurement start month based on whether or not the information stored in the service storage unit 1B3 is within one month (step S51).
In step S51, if it is determined that the measurement start month (stored information is within one month) (that is, Yes), the following formula (using the “number of hall calls” and “elapsed days”) of the start month is used. 5), “the number of hall calls per day of the start month” is calculated (step S51a), and the process proceeds to step S56 (described later).

  Number of hall calls per day of start month = number of hall calls in start month / elapsed days in start month (5)

  On the other hand, if the stored information in the service storage unit 1B3 exceeds one month and it is determined in step S51 that it is not the measurement start month (that is, No), the “number of hall calls” and “elapsed days” for the current month are calculated. Using the following equation (6), “the number of hall calls per day of the current month” is calculated (step S52).

  Number of hall calls per day for the current month = number of hall calls for the current month / number of days elapsed for the current month (6)

  Subsequently, it is determined whether or not the “number of hall calls per day of the current month” is 1.5 times or more of the “number of hall calls per day of the start month” (step S53). If it is determined that “number of hall calls per day” <“number of hall calls per day in the start month” × 1.5 (ie, Yes), the process proceeds to step S55.

  On the other hand, if it is determined in step S53 that “the number of hall calls per day in the current month” <“the number of hall calls per day in the start month” × 1.5 (ie, No), It is determined whether or not a service level warning is set (step S54).

  If it is determined in step S54 that the service level warning is set in the current month (ie, Yes), the service change warning is set (step S55), and the service change warning is set as the current month warning information. The service is stored in the service storage unit 1B3 (step S56).

On the other hand, if it is determined in step S55 that the service level warning is not set in the current month (ie, No), the process immediately proceeds to a warning storage process (step S56).
Finally, the service change warning means 1B6 displays a service change warning (see FIG. 7) (step S57), and the processing routine of FIG. 5 is terminated.

FIG. 6 is an explanatory diagram specifically showing, as display information, whether or not there is a warning setting based on the determination process (FIG. 4) of the service level warning means 1B4. "" Indicates that no warning is set.
FIG. 6 shows, as an example, a case where the service level warning unit 1B4 aggregates data in the above-described (B2) first time zone (8 o'clock to 9 o'clock).

  Here, (a) the whole building, (b) zone 1 / UP direction (B2, B1, 1st floor), (c) zone 1 / DN direction (B2, B1, 1st floor), The five zones of (d) Zone 2 / UP direction (2nd to 15th floors) and (e) Zone 2 / DN direction (2nd to 15th floors) are considered as data aggregation targets.

  The service level warning means 1B4 is a command for displaying warning information of “average waiting time”, “long waiting rate”, “forecast loss rate”, and “forecast change rate” for the current month acquired by the service level determination means 1B2. This is performed for each set zone, direction, and time zone, and in response to this, the CPU display device 1E displays warning information.

  In the warning information example of FIG. 6, (a) for the entire building, the average waiting time (= 30.5 seconds) exceeds the reference value (= 30 seconds). "Warning" is issued, and the "Service level" warning is also issued by issuing the "Average waiting time" warning.

  (B) In the zone 1 / UP direction, average waiting time = 35.5 seconds (> 30 seconds), long waiting rate = 10.2% (> 8%), unforeseen rate = 12.8% ( > 5%), each exceeding the reference value, so that each warning is displayed.

Therefore, in the case of (b) Zone 1, it can be estimated that there is congestion from the entrance floor to the upper floor at the time of work, and the group management performance at the time of up-peak is bad. Moreover, since the unforeseen rate is high, it is understood that some countermeasures need to be taken.
Here, the presence or absence of the warning setting is determined based on the comparison result between the measured value and the reference value. However, by setting the reference value in multiple stages, the warning method is not limited to “presence / absence” of warning, It can also be displayed step by step by level.

  FIG. 7 is an explanatory view specifically showing the presence / absence of warning setting based on the determination process (FIG. 5) of the service change warning means 1B6 as display information. Similarly to FIG. 6, (B2) Zone 1 / UP, 8:00 The case where the data in the set time zone of 9:00 to 9 o'clock is aggregated every month for four months from April (measurement start month) to July is shown.

In FIG. 7, (a) shows the storage information of zone 1 / UP, and the lower part of each column shows the presence / absence of warning by the service change warning means 1B6 (“◯”, “×”).
Also, (b) shows “number of landing call occurrences per day”, the middle row in each column is “the rate of increase in the number of landing call calls per day”, and the lower row is the service change by the service change warning means 1B6. Indicates whether or not there is a warning (“◯”, “×”).

  The service change warning means 1B6 issues a warning information display command regarding the service change acquired by the service change detection means 1B5 for each set zone, direction, and time zone, and in response to this, the CPU display device 1E , Display warning information.

In FIG. 7B, the number of hall calls per day is “80” in July, compared to “50” in April (measurement start month), an increase of 60% ( (It is 1.5 times or more).
In addition, since the “service level” warning is set, a “service change” warning is displayed.

  In other words, in the example of Fig. 7 (b), the up-peak at the time of attendance was moderate in April, but the tenant occupancy rate in the building increased afterwards. In July, it can be seen that the performance at the time of up-peak is deteriorating (calling hall = 80, rate of increase = 160%).

  8 and 9 are explanatory diagrams showing actual display examples, showing an example of actual display on the CPU display device 1E in response to each command from the service level warning means 1B4 and the service change warning means 1B6. Yes.

FIG. 8 shows a display example for each rotary switch (corresponding to the hall call registration device 40) related to the determination process (FIG. 4) of the service level warning means 1B4.
FIG. 9 is an explanatory diagram specifically showing a display example based on the determination process (FIG. 4) of the service level warning means 1B4. “Zone 1 / UP warning information” (service (Whether there is a warning for each level and service change).

  In this case, the CPU display device 1E has, for example, a rotary switch (not shown) installed on a substrate on the group management control device 10, and two LEDs 1 and 2 (not shown).

LED1 and LED2 each have a 7-segment display unit for displaying numbers. LED1 is a 4-bit display unit, and LED2 is a 2-bit display unit.
LED1 and LED2 can display warning information for each zone, direction and time zone according to the setting of the rotary switch.

  LED1 and LED2 can be switched to a mode of “N0.1” to “No.16” by a rotary switch as shown in FIG. 8, for example, when “mode No.5” is set. As shown in FIG. 9, the warning information of “ZONE 1, UP, 8:00 to 9:00” can be displayed.

  As a specific display method on LEDs 1 and 2, various warnings are regarded as binary bits. As shown in FIG. 9, for LED 1, the “average waiting time” is the first bit, and the “long waiting rate” is set. 2nd bit, “Unforecast rate” is 3rd bit, “Forecast change rate” is 4th bit, LED2 is “Service level” is 1st bit, “Service change” is 2nd bit, warning setting It is assumed that the status is displayed by a hexadecimal LED display.

In FIG. 8 and FIG. 9, for example, warnings are issued for the average waiting time, the long waiting rate, and the service level of the zone 1 / UP from 8:00 to 9:00, respectively.
Therefore, the rotary switch No. in FIG. Is set to “5”, as shown in each bit column in FIG. 9, bits 1 and 2 of LED1 are turned on (bits 3 and 4 are turned off), and bit 1 of LED2 is turned on (bit 2 is turned off). Therefore, as shown in the CPU display column, “3” is displayed on LED 1 and “1” is displayed on LED 2.

  That is, when warnings are issued for the average waiting time, the long waiting rate, and the service level, LED1 is binary “0011”, so it is hexadecimal “3”, and LED2 is binary “0001”. ”Is displayed as“ 1 ”in hexadecimal.

Thereby, if the CPU display device 1E is observed, the warning information (whether or not there is a warning) can be easily recognized.
Here, as shown in FIG. 8, the set number of rotary switches is “16”. However, by further increasing the set number of rotary switches, not only the presence / absence of a warning but also a specific waiting time, etc. Numerical values can also be displayed.

As described above, by reducing the amount of information related to the group management service (number of landing call occurrences, average waiting time, long waiting rate, forecast loss rate, forecast change rate, etc.), the group management control device 10 In the memory (service storage means 1B3).
Further, by providing service state detection means 1B1 for determining the quality of the service state and service change detection means 1B5 for determining a change in the building traffic flow due to secular change, data collection regarding a plurality of car operation states can be performed separately. Can be performed instantaneously without preparing, and the deterioration of the service level can be accurately and automatically determined without causing an increase in cost.

That is, when analyzing the group management service status of a plurality of cars, it is possible to always display the quality of the service on the group management control device 10 without connecting a separate device and collecting data.
Also, by issuing a warning when the service deteriorates beyond a certain standard, it is possible to easily check the warning setting status during periodic maintenance inspections, etc., before the customer receives a complaint. Measures can be taken.
In addition, changes in the group management specifications to respond to changes in services when the resident population or traffic flow expected at the time of completion of the building changes due to changes in building usage (such as new tenants entering the building) Can be proposed to customers.

In the first embodiment, the service change detection means 1B5 and the service change warning means 1B6 are provided in the group management control apparatus 10, but the service state detection means 1B1, the service level determination means 1B2, and the service level warning means 1B4. You may provide only. In this case, obtaining the warning information regarding the service level provides the same effect.
Moreover, although the number of hall calls, the average waiting time, the long waiting rate, the forecast change rate, and the unforeseen rate are used as parameters indicating the service state, at least one of these parameters may be used. Also in this case, it is needless to say that the warning information regarding the target parameter can be acquired by performing the same processing as described above, and the same effect can be obtained.

1 is a block diagram schematically showing an overall configuration of an elevator group management system according to Embodiment 1 of the present invention. FIG. It is a flowchart which shows the processing operation of the service state detection means which concerns on Embodiment 1 of this invention. 3 is a flowchart specifically illustrating a service state calculation processing operation in FIG. 2. It is a flowchart which shows the processing operation of the service level determination means based on Embodiment 1 of this invention. It is a flowchart which shows the processing operation of the service change determination means based on Embodiment 1 of this invention. It is explanatory drawing which shows the processing operation of the service level warning means which concerns on Embodiment 1 of this invention as display information. It is explanatory drawing which shows the processing operation of the service change warning means which concerns on Embodiment 1 of this invention as display information. It is explanatory drawing which shows the example of a display of each mode by the CPU display apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the example of a display of the concrete warning information by the CPU display apparatus which concerns on Embodiment 1 of this invention.

Explanation of symbols

  10 group management control device, 1A communication interface, 1B1 service state detection means, 1B2 service level determination means, 1B3 service storage means, 1B4 service level warning means, 1B5 service change detection means, 1B6 service change warning means, 1C allocation determination means, 1D operation control means, 1E CPU display device, 20 each vehicle control device, 30 elevator car, 40 hall call registration device.

Claims (3)

In an elevator group management system for a building where multiple elevator cars are in service,
Service status detection means for determining service status of the plurality of elevator cars;
Service level determination means for determining a service level from the service state;
Service storage means for storing the service state and the service level;
Service level warning means associated with the service level determination means;
A CPU display device associated with the service level warning means,
The service state includes at least one of a hall call number, an average waiting time, a long waiting rate, a forecast change rate, and an unforeseen rate,
The service storage means holds data for a certain period and current data,
The elevator group management system, wherein the service level warning means generates a warning display command to the CPU display device when the service level changes in a worsening direction exceeding a certain standard. Service change detection means associated with the service storage means;
Service change warning means related to the service change detection means,
The service change detection means compares the past service state and service level stored in the service storage means with the current service state and service level, and
When the service change warning means determines that there is a large change of a predetermined amount or more in the usage status of the building from the past to the present based on the comparison result of the service change detection means, the service change warning means The elevator group management system according to claim 1, wherein a warning display command is generated for the elevator group management system. The service state detection means, the service level determination means, the service storage means, and the service level warning means include:
The respective processes are executed for the entire building or a plurality of zones, for each specific floor of the building, for all directions or for each direction, for all time zones or for specific time zones. The elevator group management system according to claim 1 or 2.

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