CN1802304A

CN1802304A - Elevator down peak sectoring with long call response

Info

Publication number: CN1802304A
Application number: CN03826823.XA
Authority: CN
Inventors: Z·巴亚特; T·克里斯蒂
Original assignee: Otis Elevator Co
Current assignee: Otis Elevator Co
Priority date: 2003-07-21
Filing date: 2003-07-21
Publication date: 2006-07-12
Anticipated expiration: 2023-07-21
Also published as: CN100491223C

Abstract

In down peak, floors of the building are divided into sectors (38), empty cars (50) are assigned (63, 64) to the sector and assigned (65) the highest down call in the sector provided the highest down call is above the committable floor of any car already assigned in the sector, or there is no car assigned in the sector. If a car is not full (52), it will be assigned additional calls (56). If there are no calls in the sector below a car sector which is not full, a long calls routine (67) determines if there is a down call (75), that is in danger of becoming a long-waiting call, ahead of a car (69) and if so, assigns that call to the car (76).

Description

Has the elevator lowering peak segmentation that the continuous call ladder is replied

Technical field

The present invention relates to during lowering peak the allocated elevators car and give section, car is that the ladder (call) of exhaling in institute's distribution section provides service, distribute other car when needs, for this section, have beyond the car response institute distribution section of not using capacity, wait for for a long time the ladder of exhaling.

Background technology

When the personnel that suitable high range is arranged in the building thought at one time down to the hall, it is current that lowering peak will take place in the building.This usually occurs in the lunchtime and the workaday ending of office block, and people worry and want to leave office and walk toward family at that time.This also may occur in the residential building one day beginning, and people just are being away from home and are going to work at that time, perhaps may occur in the restaurant, and a lot of at that time people are going to the hall near the check-out time.

Most of elevator with multiple compartments system all has and is easier to the up peak mode handled relatively, and this is because all that are treated to that up peak exhales ladder exhale ladder all to appear at lobby floor.On the contrary, during lowering peak, exhale ladder to appear at any floor in building, and only stop at a utility layer.

The mode that lowering peak passes through in traditional processing building relates to carries out car dispatch in such a way, and promptly unloaded car moves to top according to demand, replys demand in layer in succession, then those passengers is delivered to the hall.Yet recurrent is that lift car becomes full in higher level, and is forced to the passenger that straight is crossed the service of waiting at lower level.This can cause the passenger of those lower levels will stand unacceptablely to wait as long for.

Existed in some trial of lowering peak segmentation aspect, be about to hoistway and be divided into groups of floors, and provide service for these groups, to prevent that any groups of floors is for example than the weary service of lowrise break according to certain type orderly fashion.Yet when the demand in the section that car only distributes for them provided service, this can cause that superfluous capacity is arranged in unemployed car.For example, if car provides service for the section that comprises 5,6,7 layers, but only have a few passengers to wait for service at this section, it still can one the tunnel runs to the hall, and does not consider 2,3 or 4 layers of passenger who waits for service.If the demand for services to those floors is very big, distributes to the car of this section so and just can not catch up with demand.

Summary of the invention

Purpose of the present invention comprises: a kind of effective means of exhaling the ladder service that provides during lowering peak, be in the section lower end exhale ladder not can owing to distribution car this is full and must wait for ultra-long time before exhaling ladder arriving, and in the busy current wait that can not cause overlength at some certain floor place; And the scheduling that during lowering peak, improves elevator.

According to the present invention, when busy descending current (being called lowering peak) beginning, the floor in building is by the set of dispense that is called section, the car of further not exhaling ladder to reply in institute's distribution section can be searched might become the long ladder of exhaling of exhaling ladder of waiting in other section, and when the current adjustment at a section, other car also can be distributed to this section.

The present invention combines the advantage of segmentation, considered simultaneously to have waited in other section and enough exhaled ladder for a long time, to such an extent as to these exhale the ladder wait time long enough have the danger that becomes unacceptable continuous call ladder.If demand adjustment, the present invention also distribute other car to a section, thus not only served on the sector cars exhale ladder but also serve a section following exhale ladder.

The present invention provides balanced service by the capacity that utilizes elevator fully to the passenger that request in all floors of building goes downwards to the hall.In general, the invention enables each car to provide service, but can check also simultaneously that those have in other section will become the unacceptable dangerous ladder of exhaling that waits as long for for the hoistway section that is distributed; If if exist this ladder and the described car of exhaling to have extra capacity, then distribute this car to provide service with becoming the unacceptable one or more ladders of exhaling that wait as long for danger, even this exhales ladder is in is provided service by other car section for having; Exhale ladder if on the car of serving a section, exist, then can distribute other car to it.

Other purpose of the present invention, feature and advantage will become more obvious according to following to its DETAILED DESCRIPTION OF EXEMPLARY, as shown in the drawing.

Brief description of drawings

Fig. 1 is and the scheme drawing of the conventional computer configuration of elevator interface that it can implement example system of the present invention as one.

Fig. 2 is the simplification logical flow chart that can be used for implementing the instantiation procedure of lowering peak segmentation of the present invention.

Fig. 3 is the simplification logical flow chart that can be used for implementing the terraced instantiation procedure that distributes of continuous call of the present invention.

Implement mode of the present invention

With reference to Fig. 1, signal processor 11 schematically is a group controller, and it can utilize various aspects of the present invention to distribute car, with the response hall calls.Treater 11 response a plurality of sensors 12 (for example car load measuring sensor) and data-signal 13 (such as the situation of car direction and door), they all are provided to I/O (I/O) port one 5 of treater 11.Similarly, other I/O port one 8 is connected to a plurality of hall calls button 19 of each floor, a plurality of car hall buttons panel 20 (in each car resident) and a plurality of entrance halls signal lamps 21 of residing in, and generally has one or more entrance halls signal lamp at each floor stop.Treater 11 comprises data bus 24, address bus 25, central processing unit (CPU) 26, random-access memory (ram) 27, flash memory (not shown) and read-only memory (ROM) (ROM) 28, and this read-only memory (ROM) 28 is used for storage can realize necessary program of the present invention unit or routine.

Set forth the reduced representation that is used to realize routine of the present invention among Fig. 2.Wherein, lowering peak scheduler program 29 arrives by entrance 30, and test 32 determines whether the current of down direction has reached descending peak value, and this determines in a conventional manner.If no, then be returned to the other parts of program by return point 33.

If be in lowering peak, then test 32 positive result arrival subprogram 38, any mode during subprogram 38 is incited somebody to action is in many ways determined section, all these modes all are conventional.The quantity that the easiest mode of floor grouping is based on floor in the quantity of car in the grouping and the hoistway is carried out.When this mode of use is determined section, for each section distributes a lift car, remaining " free time " car will be used for serving the current or help solution the busiest current place of adverse current.

In the mode of another kind definition section, building population is the principal element of segmentation, and purpose is will make to have the basic number that equates in each section.A car keeps the free time to pass through or those sector cars of having distributed of help in having the zone of greatest requirements to serve adverse current.By this way, each section can have different numbers of floor levels according to building population.

The basis of determining section can be a number remaining in each floor, determine segmentation by writing down remaining how many people, then can be according to suitably changing segmentation also surplus how many people of each floor, this is because last number will begin to leave and change along with personnel, here this is called as dynamic segmentation, and it periodically recomputates segmentation based on every layer of remaining number by group controller.

In case determined section by the group Control Software, then section will be used to determine which hall calls which car should be assigned to.Then, car pointer C is changed to 1 in step 42, and sector pointer S is configured to equal the highest region section in step 43.In order to determine whether car has surplus capacity, before can determining that this car is whether full, this car is necessary to wait for always, has replied the ladder of exhaling of distributing to it up to it.For this reason, for each car is provided with a pending ladder sign of exhaling, as described below.When car C have distributed but also do not replied exhale ladder the time, test 44 result will distribute thereby any ladder of exhaling can not take place for certainly.For any given car, distribute one exhale ladder give this car after and before this car of resetting pending exhale the ladder sign, this routine can be by this car of step 44 processing much many times.

Test 44 positive result arrives step 48, so that be that modulus increases progressively this car pointer with the number of elevator of distributing to section; By this way, each car is handled constantly in turn, and arrives test 44 once more to determine successively whether next car has the pending ladder of exhaling.Were it not for, then test 50 and determine whether car C is empty.If this car is not empty, then it is not available to be newly assigned to this section, can determine to have distributed to before it this section but test 51, and to determine that these cars also do not have full so long as test 52, then this car can respond in its distribution section other and exhale ladder.If car C is full, then to test 52 positive result and arrive step 55 with the distribution of replacement car C to section S, this distribution is following can explanation.Then, arrive step 48 again increasing progressively C, thereby point to next car successively.

In the routine of accompanying drawing 2, suppose to be advanced to each floor from top to bottom, thereby each exhales ladder to distribute according to order from high to low.

Suppose car C under consideration do not have pendingly to exhale ladder, be non-NULL, be assigned to when front section and do not have full.Test 52 negative decision will arrive test 56 with the floor of determining the next one descending hall calls in succession among the section S whether under the floor alloted of car C.If, then step 57 is distributed to car C with the next descending ladder of exhaling of section S, and step 58 is provided with the pending sign of exhaling ladder of expression for car C then, thereby car C will not be considered for any further service, reply this up to it and exhaled ladder, can determine the current capacity of this car then.

Then, test 61 determines whether still to be in lowering peak.At first, will can be lowering peak also, so test that 61 negative decision will arrive step 62 so that sector pointer is that modulus successively decreases with the quantity of section in the building.Then, will check the currently identified car of car pointer C at this section.In this example, car C has just had the ladder of exhaling of distributing to it, and will be sure thereby test 44, and arrives step 48 so that car pointer increases progressively.

The indicated car of supposition car pointer C is empty now.It does not have the pending ladder of exhaling, thereby test 44 negate, but it will be sure testing 50, and arrive test 62.In test 62, the floor number of the highest pending descending among the section S being exhaled ladder with distribute to the alloted floor of section S and compare as the car of high-rise car.If in section S, do not distribute any car, then in section S, do not have best result to join car.In the case, the floor alloted of the high-rise car of section S is set up and equals zero, will be automatically for sure thereby test 62.On the other hand, if the car of serving section S is arranged, and do not have other car to distribute to section S afterwards, then this car will be designated as the high-rise car among the section S, and will be as described below.Be in this previous car that distributes any ladder of exhaling afterwards if having in this section, it will be sure then testing 62.

If in this section, on high-rise car, exist and exhale ladder, if perhaps in this section without any car, then test 62 positive result and arrive step 63, distribute to section S so that car C to be set, and the high-rise car in this section is set to car C in step 64.Then, step 65 is distributed to car C with the highest descending ladder of exhaling among the section S, and step 58 will be provided with the pending ladder sign of exhaling for car C.Arrive test 61 and whether still be in lowering peak to check.If then arrive step 62 so that sector pointer is successively decreased, and test next section at the car of car pointer C positive sense successively.

Suppose that car C does not have the pending ladder of exhaling, be non-NULL, and be assigned to this section, thereby arrive test 52.It is full to suppose that simultaneously car C does not have, and therefore has overhead provision.Then supposition is not lower than the high-rise descending ladder of exhaling of the floor alloted of car C in this section.Another aspect of the present invention is that car C can seek any ladder of having shelved after over a long time of exhaling now.The negative decision of test 56 arrives long call's subroutine 67, as shown in Figure 3.

In Fig. 3, arrive long call's subroutine by entrance 68, step 69 is provided with the alloted floor of floor pointer F to car C.Test 70 determines whether to exist the descending ladder of exhaling of floor F.Arrive step 74 so that pointer F successively decreases if no, then test 70 negative decision.Then, repeated test 70.If have the descending ladder of exhaling at floor F, whether the descending time of exhaling ladder to be continued of then testing 75 definite floor F has surpassed is exhaled ladder to wait for the time limit, these treat that the time limit can consider that elevator arrives a reasonable time amount of exhaling ladder, and on an average, this time quantum can be about about one minute.In fact, this is a kind of time limit that is provided with, and it can be regulated according to current traffic density (per minute exhale ladder), and current traffic density can be monitored with mode as known in the art at an easy rate.If floor F exhales ladder to have to wait for the danger exhale ladder with becoming overlength, then to test 75 positive result and arrive step 76 and step 77, step 76 distributes the descending ladder of exhaling of floor F to car C, and step 77 is provided with the pending ladder sign of exhaling of car C.Then, routine finishes at point 79, thereby makes the routine of Fig. 2 recover car pointer is increased progressively in step 48.

If the exhaling ladder not have to become overlength of floor F waited for the danger exhale ladder, then test 75 negative decision and will arrive test 80 and whether the continuous call ladder be checked with all floors below the floor alloted of definite car C.If they all also are not examined, then test 80 negative decision and arrive step 74, and successively next floor is repeated this process so that F successively decreases.

In order to assist the routine among Fig. 2, when car leaves stop, for example when to the cage operation order, any pending ladder sign of exhaling all will be reset.No matter when car is near the hall, if any high-rise car (S) is configured to C, it will be reset to zero (mean and do not have car).Simultaneously, if section (C) equals some sector number, it also is reset to zero.

If concurrent processing is disabled, the routine of accompanying drawing 2 also can pass once in a while, can be returned to other program design before any one in arriving incremental steps 48,61 or both.Perhaps, also can carry out other suitable adjustment in the mode in the art technology scope of routine.

Claims

One kind during the lowering peak traffic status allocated elevators exhale ladder (21) to give the method for car, comprising:

All floors in the building are divided into (38) section;

If there is (62) at least one pending descending hall calls in a section, this exhales ladder to a unloaded car then to distribute (65), and described then car is assigned with (63) to this section;

To non-full (52) and be assigned with (51) give the arbitrary specific car of a particular section distribute (57) in described particular section, be in described specific car before the descending ladder of exhaling of (56);

It is characterized in that:

Pending descending to exhale ladder (56) to be in one non-full and be assigned to before the specific car of described particular section if do not have in a particular section, then determine (70) described particular section outside whether have at least one descending hall calls to wait for to have surpassed one in advance specified time (75) and be in described specific car before (69), if then distribute this ladder of exhaling to described specific car (76).
One kind during the lowering peak traffic status allocated elevators exhale ladder (21) to give the method for car, comprising:

All floors in the building are divided into (38) section;

If there is (62) at least one pending descending hall calls in a section, this exhales ladder to a unloaded car then to distribute (65), and described then car is assigned with (63) to this section;

To non-full (52) and be assigned with (51) give the arbitrary specific car of a particular section distribute (57) in described particular section, be in described specific car before the descending ladder of exhaling of (56);

It is characterized in that:

Determine whether (62) exist so descending ladder of exhaling in given section, be that the descending ladder of exhaling is in than the taller floor of the floor alloted of high car of distributing to described given section, if exist, this exhales ladder to give another car then to distribute (65), and distributes (63) described another car to give described section.