JPS59177266A - Method of group of elevator - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to group management control of elevators, and in particular, uses all small computers such as microcomputers, and selects the optimal floor using an evaluation formula for generated hall calls. The present invention relates to a group management control method for elevators that are assigned to each other.

[Technical background of the invention]

In recent years, it has become common for group management control devices to centrally control multiple elevators to use small computers such as microcomputers. In such a group management control device, a so-called evaluation formula is used to determine all service (response) elevators for a hall call that has occurred. Although there are various evaluation formulas, the evaluation value f is usually calculated using the following formula.

f=F(xjlct-Wt)+Tj+000
++ (t) (X,; Harm 11 attached is the predicted arrival time at the target floor size.

Ci: Allocation is the number of hall calls and car calls already allocated in the target floor.

Wi: Predicted car load.

Town: the duration of time since the hall call was registered) By using this evaluation formula, it is possible to determine the elevator that can most rationally respond to the hall call based on the traffic information at the time the hall call is generated. This decision is then displayed to the customers waiting in the hall in the form of a forecast display such as the lighting of hall lanterns.

However, before the elevator designated as the service elevator responds to the hall call, other elevators may arrive at that floor earlier due to a car call. ). This may be due to the service elevator responding to a hall call on a mid-floor floor. This occurs when the floor is full and people pass through the floor.

In general, service indicators for elevator group management include (a) short average unanswered time, (b) short service life, and (c) no discrepancies between forecast display and reality, such as changes in forecasts, first-come-first-served car calls, etc. (So to speak, don't lie about the forecast), 03 points can be given. In particular, item (c) is important from the perspective of improving psychological services for group management.

By the way, when a hall call occurs, the most basic information to judge whether all service elevators are decided or whether the call will be first-come-first-served is X (predicted arrival time to the target floor) and W in equation (1). , (predicted car load).

X is Xj - Σ (section running time) + Σ (door opening/closing time) + Σ
It is expressed as (the boarding and alighting time of users) and can be grasped almost quantitatively.In general, it decreases due to calls at the target floor and increases due to calls to assigned halls. The increase or decrease in wl is determined by the large number of elevator users, so even though it is the basic data for elevator group management, conventionally the calculation of wl has been almost fixed and tentatively added. I went there.

That is, W was calculated by uniformly subtracting when responding to a cage call and uniformly adding when responding to a pole call, or by a modification thereof. For this reason, the accuracy of the forecast is still ＜
Therefore, in the past, there were often problems with the above-mentioned point (c), and it could not be said that sufficient service was provided.

In particular, in demand situations where there are many calls for down halls, such as during the first half of lunch time or clock-out time, which is generally referred to as down-peak demand, the service elevators may become full on the middle floor, and the forecast may be changed due to the fullness. Due to the change, there was a lot of confusion and noise among the customers waiting in the hall.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator group management control method that can effectively prevent the occurrence of services contrary to the forecast, such as first-come-first-served services, which are caused by cars becoming full, and can improve service indicators.

5- [Summary of the Invention] The present invention predicts the fullness of each elevator by determining that the duration of the hall call on each floor has a proportional correlation with the number of people waiting in the hall when allocating hall calls. The purpose of this project is to improve the reliability of group control elevator forecasts by increasing the accuracy of forecasts and preventing forecast changes or re-changes due to service elevators responding to hall calls on intermediate floors and becoming full. be.

Note that the proportional correlation between the duration of the upper two hall calls and the number of people waiting in the hall generally becomes clearer depending on the combination of time zone and floor.

[Embodiments of the invention]

Without further ado, FIG. 1 schematically shows an outline of the elevator arrangement in an elevator system to which an embodiment of the present invention is to be explained in detail.

In this system, four elevators, Units A to D, are installed as part of a 10-story building (Building 6-Ding), and the area from the 2nd floor to the 6th floor is an express zone, and each elevator in the group is Prevents the machine from stopping.

The elevators A to Dq are controlled by a group management control system configured as shown in FIGS. 2(a) and 2(b) to which an embodiment of the present invention is applied.

In Figures 2 (a) and (b), 1 is a hall call registration circuit, in which the part of the register corresponding to the floor and direction of the hall call is set when registering the hall call, and when the car arrives at the hall call floor. will be reset. 2A~2
D is an elevator operation control device provided for each of the four elevators A to D, and car state storage circuits 3A to 3D and car call storage circuits 4A to 4D are provided respectively. The car state storage circuits 3A to 3D are buffers for car position, driving direction, load information, and the like. In the car call storage circuits 4A to 4D, the portion of the register corresponding to the floor is set when a car call is registered, and is reset when the car arrives at the registered floor. 5 is a wiper select circuit. 6 is a small computer such as an 8-bit microcomputer, and has an output register 7, an input register 8, and an output register 9. Output registers 7 and 9 have the function of holding an output until the next output is generated. IO is a master condesidine storage circuit, which is a circuit that stores information on whether or not each elevator can be put into a group. This information is shown in Figure 2 (b
) as shown in the Manuta Condition Table (r
The RAM of the small computer 6 (referred to as MCT J) is
The master condition storage unit 14 in the random access memory) is stored in the master condition storage unit 14 in the random access memory.

In such a configuration, the wiper select circuit 5 is operated by the sub-address signal output from the output register 7 of the small computer 6, and the required traffic data is selected from the traffic data group according to the select code output from the output register 7. are sequentially selected and stored in the RAM area of the computer through all the input registers 8 of the small computer 6. Based on this information, a car number is determined to be assigned to a hall call that has occurred, and is stored in the RAM of the computer 6.

In other words, in FIG. 2(b), the MCT stored in the master conditioning storage section 14, the car condition table (hereinafter referred to as r) stored in the car condition storage section 15,
(referred to as CCT J), hole conditioning storage section 1
6 (hereinafter referred to as r)
HCT J), the predicted arrival time stored in the predicted arrival time storage unit 17 (hereinafter referred to as "YER8T"),
and the predicted number of people in the car W stored in the predicted number of people in the car storage unit 17A, the evaluation value calculation unit 18 calculates the evaluation value based on formula (1), and as a result, the evaluation value storage unit 19
The evaluation value for each car number is stored in , the service elevator for the hall call is determined by the optimum elevator calculating section 2o, and data indicating the car number is outputted from the output register 9.

The output data is decoded by the decoding circuit 13 shown in FIG. At the same time, the information is assigned and stored, and at the same time, the hall lantern (forecast light) (not shown) in that hall (floor) displays a forecast. Hall call assignment memory circuit 12
The stored data of 1', ~12D is combined with the stored data of the hall call storage circuit 1 and stored in the hall call storage circuit 1y.
cD record 5t data is configured and stored as HCT in the hole conditioning storage section 16 in the RAM via the wiper select circuit 5.

Note that in FIG. 2, a plurality of signal lines, for example eight parallel signal lines, connecting each circuit are shown in the same manner as a single signal line. Further, all the registers have the number of bits corresponding to one word of the small computer 6. In addition, the HCT and CCT stored in the RAM of the small computer 6 are
The bit configuration is as shown in FIG. Please note that CC
At T, beep)O indicates running or stopping; 1'' indicates running, and 0'' indicates stopping. Pi 17
and 2 indicate the force/inward type of the elevator 10. For example, λ is "00" which is less than 25% of the rated load, '01' which is 25% or less than 50% of the rated load, 10
'° indicates 50 or more and less than 75, and 11'' indicates above 75. Bits 3 to 7 indicate the location of the elevator. For example, "OO001" indicates that you are on the first floor, and "00" indicates the location of the elevator.
010” means 2nd floor, “01010” means 10th floor.
Indicates that you are on the floor.

The detailed HCT has a bit configuration as shown in FIG. 4(,). Here, bits 0 to 3 are hall call set bits for the allocation of each elevator, and bit 6 is 1'' to indicate that the allocation is complete, and 0'' to indicate that the allocation is incomplete. When bit 2 is '1', there is a hole call, and when it is '0', there is no hole call.

The presence or absence of a car call is stored in the car call storage section 21 in the RAM in the form of a car call table (hereinafter referred to as rKCTJ) shown in FIG. 4(b).

Here, the process from when a hall call is generated on a given floor until a service elevator is determined for that hall call will be explained.

In the flowchart shown in FIG. 5, start from Q1, initialize the RAM in Q2, set the subrune entry address, and check the car status of each elevator in Q3C using the Wainoya select circuit shown in FIG. 2(a). , 5 to the CCT and KCT in the RAM (select codes 8 to 21). In step Q3a, the predicted number of people in the car Wt is calculated based on the hall calls assigned to each car call. The hole index J'z for scanning each hole state is initialized (J=1) in Ql. Next, based on the traffic data read into the RAM as described above, the process moves to Q5 and subsequent steps. In Q5, since the hole index J'kJ is set to 1 in Ql, the hole condition is checked for 10d (downhole call on the 10th floor) without being changed.

Whether there is a hall call or not is HCT bit 7 1”.

It is indicated by "0", and the presence or absence of assignment to that hall call is indicated by bit 60II, Q".
By introducing bit 6.7 in Q5, 00"; no hole call, no assignment 01"; hole call, no assignment 11"; hole call, no assignment "1";
0”; hole status can be determined such as no hole call or allocated foot.

If these are 00'', the hall call duration counter is set to 'rj-0' in Q6 and the process proceeds to D.

10", the hall call duration counter Tj is set in Q9.
-Tj+1 and proceed to the conjugate.

01", after starting Tj=Tj+1 at Q8, Q)1.
In Ql2, the evaluation formula f'fr shown by equation (1) is calculated.

After calculating the formula (1), in Q13, the fmln car, that is, the smallest number ja of f is determined and output as the service elevator for that call.

In the case of 11'', set Tj=Tj+1 in Q7, calculate the first arrival time difference in QIO, and proceed to D.

In this way, for hall calls on all floors from J-1 to J=18, service elevators are determined for hall calls 13- and 13- for unassigned hall calls, and for vertically divided hall calls, Haka calls are determined, and each cycle is determined on a first-come, first-served basis. Calculate and evaluate.

In this embodiment, the allocation to hall calls is determined as described above.

Next, parts of the above-described processing that are particularly related to the features of the present invention will be described in detail.

FIG. 6 is a detailed flowchart of the part indicated by connector A1 to connector A2 in FIG. 5, that is, the fullness prediction calculation.

In Ql9, set IMANT to CARMANl) = Wl-0, and in Q20, change the car by referring to the load → number of people conversion table shown in Fig. 8 based on the load signal of the car stored in CCT (g) shown in Fig. 3. Actual number of people in CARMAN (1) k
Calculate. As is clear from Fig. 8, for example, when the load signal is 11", it is calculated as □ = 10 (persons) to CARMA. Next, Q21
Then, check the presence or absence of a car call by performing a k-scan on the relevant car of the KCT shown in Fig. 4(b). If there is a car call, at least one person will get off the car, so the number of calls - number of people getting off = DMAN (+).

DMANG) -DMAN(t) until all floors are searched
) + 1 to calculate DIVIAN(t) k. Q
22, the index number j of the HCT to be scanned as shown in FIG. 4(a) corresponds to the hall call.
is the index corresponding to the corresponding machine. In other words, l-
Nucan from j=1 to j=1-8 for each of 0 to 3. For example, in 1-0 (unit A), j = 1 to 18
If the 5th floor hall call is assigned while canceling, HCT is counted up (incremented) for every index j in Q2 to Q9 in Figure 9 (b) of Figure 9. Hall call duration 'r, (=,
t hall call duration). Next, the ROM table C0NVTB shown in FIG. 9(a)
The value of L'cTj corresponds to the ROM as a total index.
Set the table value to the number of people waiting in the hall (-IMAN) and p
: Set. In the example of FIG. 9(,), if Tj - 30 seconds, I MAQTj) = 3 people. From the beginning I MAN
As shown in Figure 11, it is a function of Tj, and IMAN(
The relationship between Tg and Tj may be linear as shown in FIG. 11 (,) or non-linear as shown in FIG. 11(b), for example. For j=1 to 18, IMANT=IMANT
The sum IMANT'e of the number of passengers for the assigned call is calculated as +IMAN(Tj). In Q23, the predicted number of people in the car is calculated based on the car calls and assigned calls at that time using the following formula.

W, -Current number of people in the same car -Number of people getting off by kat call Ten quotaNumber of people getting on board by hall call -CARMAN -DMAN, +IMANT
・・・・・・・・・(2) I Store all of W1 in the RAM in Figure 10 at Q24, and determine whether all machines have finished at Q25. If all machines have finished, proceed to connector A2. .

FIG. 7 is a detailed flowchart of the portion indicated by connector C to connector C in FIG. 5, that is, evaluation value calculation.

In the case shown in FIG. 12, the direction of the elevator is selected, one car call and two car calls already exist, and the predicted arrival time to the n) floor is determined. In Fig. 12, the relative floor difference between the limbs and the floors that are stopped without switching XI”X
4 as HCT in Figure 4(,) and KCT in Figure 4(b)
' i is obtained by referring to it (Q30 in Fig. 7).

Next, x (y) is calculated for each section running time t(1) with reference to the ROM table shown in FIG. This table value is uniquely determined from the rated speed and acceleration/deceleration of the car. The opening/closing time TD of the door is assigned to this section traveling time t,
ΔIf we take into account the time to get off the car when responding to the call, in the example of Fig. 12, x n = YREST = t+
+'r ten Δcho+ t= +'rD+ TDT!
ME + t, 10T. +1071MIC+t4...
- By (3), the predicted arrival time at (n) floor 1 can be calculated extremely accurately (Q 3J , Q , 92 in Figure 7).

Next, in Q34, it is checked whether the predicted number of people W1 of the car is full or not, and if it is full, the evaluation value f is
), allocation is prohibited. If Wi is not full, the evaluation value shown in equation (1) is calculated at 17-h, Q, and 9B, and the process proceeds to connector C1.

In this way, when determining the service elevator for a hall call, we use (based on the assumption) that the duration of the hall call on each floor has a proportional correlation with the number of people waiting in the hall (the number of people boarding the hall). By doing so,
It is possible to effectively prevent changes in the forecast due to the service elevator being full.

The present invention is not limited to the embodiments described above and shown in the drawings, but can be modified and implemented within a range without changing the gist thereof.

For example, the relationship between the number of people calling in the hall and the number of people waiting in the hall may show different trends depending on the time of day, floor, etc., and the above relationship may become clearer by specifying these time periods, floors, etc. be. For example, on the standard floor during up-peak hours (such as when dispatched in the morning) or on the cafeteria floor during lunch hours, the above relationship is considered to be close to a simple proportional relationship 18-. It is also effective to select floors, etc.

〔Effect of the invention〕

According to the present invention, elevator group management can effectively predict that a car will be full, effectively prevent the occurrence of unpredicted services such as first-come-first-served services due to the car being full, and improve service indicators. A control method can be provided.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the arrangement of a group of elevators to which an embodiment of the present invention is applied, FIG. 2 is a block diagram showing the system configuration of an embodiment of the present invention, and FIGS. 3 and 4 , FIGS. 8 to 10 and 13 are diagrams showing formats of various tables used in the embodiment, FIGS. 5 to 7 are flowcharts for explaining the operation of the embodiment, and FIG.
The figure is a diagram showing an example of the correlation characteristic between the hall call duration time and the number of hall callers used in the explanation of the same embodiment, and Fig. 12 is a schematic diagram of elevator operation used in the explanation of the same embodiment.1.・Hall call storage circuit, 2A to 2D... Elevator operation control device, 3A to 3D... Car state storage circuit, 4A to 4D... Car call storage circuit 1.5... Wiper selection circuit, 6 ...Small computer, 7,9...Output register, 8...Input register, lo...Mask condition memory circuit FILII...Hall condition memory circuit, 12A to 12D...Hall call assignment memory circuit , 13... decoding circuit. Applicant's agent Patent attorney Takehiko Suzue 1st floor AB (ゝ-m Manda-bori 3 Figure 4 (a) Figure 6 Figure 8 Figure 7 Figure 9 (b) Figure 10 Wi Figure 11 Figure (a) j (b) j Figure 12 Figure 13 = 46 [

Claims (1)

[Claims] In an elevator group management control method in which multiple elevators are put into service for multiple service floors, and all Sabine machines are selected and responded to a hall call common to each elevator machine based on a predetermined evaluation calculation, the evaluation calculation described above is used. When calculating the expected number of passengers in the elevator as part of the calculation and restricting the allocation when the elevator is expected to be full, we obtain the predicted number of passengers on the floor based on the hall call duration and calculate the number of passengers mentioned above. A group management control method for an elevator, characterized by calculating a predicted number of occupants.