EP3728094A1

EP3728094A1 - Route planning on the basis of expected passenger number

Info

Publication number: EP3728094A1
Application number: EP18814970.2A
Authority: EP
Inventors: Lukas Finschi
Original assignee: Inventio AG
Current assignee: Inventio AG
Priority date: 2017-12-21
Filing date: 2018-12-13
Publication date: 2020-10-28
Anticipated expiration: 2038-12-13
Also published as: AU2018389637A1; WO2019121329A1; CN111386236B; ES2915498T3; AU2018389637B2; PL3728094T3; CN111386236A; US20210047144A1; EP3728094B1

Abstract

The invention relates to a lift system (1) comprising a destination call control device (8), in which system a first destination call entered on a floor (L1, L2, L3) by a first passenger (4) at a first time is evaluated in order to determine first call information from the first destination call, wherein the first call information contains data concerning a call input floor (L1, L2, L3) and/or a destination floor (L1, L2, L3). The first call information is used to determine whether a number of additional passengers (4) are to be assigned to the first destination call, wherein the number of additional passengers (4) results in an additional space requirement pin of a lift car (10) serving the first destination call. Information concerning the additional space requirement is generated if a number of additional passengers (4) are to be assigned to the first destination call. If this is the case, the first destination call is allocated by means of an allocation algorithm using the information concerning the additional space requirement in order to transport the first passenger (4) from the call input floor (L1, L2, L3) to the destination floor (L1, L2, L3).

Description

Trip planning based on expected number of passengers

description

The technology described here relates generally to an elevator system having a

Destination call control, in particular their design for call allocation and trip planning. Embodiments of the technology also relate to a method for operating such an elevator system. In order for a passenger to call an elevator, elevator systems are known which either have a floor terminal for entering the desired direction of travel (eg, "up" and "down" buttons) or a floor terminal for entering the desired destination floor. The latter allow elevator systems with a destination call control, which allocates an elevator car of a passenger an elevator car to transport the passenger to a desired destination floor. An embodiment of an elevator system with a destination call control is disclosed in document EP 0 443 188 B1; the

Destination call control allocates elevator calls based on calculated service costs and variable bonus / penalty factors. Such allocation procedures are based on the assumption that each passenger has one

Enter elevator call. As stated in EP 1 522 518 B1, such disciplined behavior is not always encountered in real situations; in a group of people with the same destination floor, one person may be calling the elevator and all are getting into the assigned elevator car. Depending on the size of the group can thereafter only relatively little space in the elevator car be present, u. So little that a previously intended for the journey with this elevator car passenger on another floor can not get on (or wants, because it is too full) In such a case, it is known, for. B. EP 1 522 518 Bl or US 2016/0297642 Al to omit the provided on the floor stop and drive past the floor; this is called a bypass there. As a criterion for activating the bypass function, EP 1 522 518 Bl and US 2016/0297642 A1 describe the measured load in the elevator car. However, the bypass function can not be activated when the floor is the destination of a passenger in the cabin. Although the solutions mentioned with the bypass function u. Avoiding an already full elevator car stops on a floor on which no passengers can get on, it leads to a possibly significantly increased waiting time for the waiting passengers. In a destination call control, said elevator car must return to this floor because it has been allocated to the passengers; it is not easy to choose another elevator car, which could possibly serve the passengers earlier. The bypass function can therefore lead to a large delay in the journey, which can frustrate the passengers; the waiting passengers may therefore be able to enter new elevator calls, possibly also to destinations that do not correspond to their actual destination, just to finally board an elevator car. This can cause further disadvantages for other passengers. There is therefore a need for a technology that operates the elevator calls in an improved manner and improves the efficiency of the elevator system. One aspect of such an improved technology relates to a method of operating an elevator system in a building, the elevator system having a

Destination call control device and an elevator car, which is movable between floors of the building and has a fixed passenger capacity contains. A first destination call entered on a floor by a first passenger at a first time is evaluated in order to determine a first call information from the first destination call. The first call information contains information about a call input floor and / or a destination floor. By means of the first call information it is determined whether the number of additional passengers is to be assigned to the first destination call, whereby an additional space requirement results in the number of additional passengers in an elevator car serving the first destination call. Information on the additional space requirement is generated if the first destination call has a Number of additional passengers. If a number of additional passengers are to be assigned to the first destination call, the first destination call is subordinated by means of an allocation algorithm

Allocating information to the additional space required to transport the first passenger from the call input floor to the destination floor.

Another aspect relates to an elevator system in a building. The elevator system comprises an elevator car which is movable between floors of the building and has a fixed passenger capacity. A destination call control device is configured, in order to evaluate a first destination call entered on a floor by a first passenger at a first time in order to obtain a first destination call from the first destination call

Call information to determine, the first call information information to a

Call store floor and / or a destination floor. The

Destination call control device is also designed to be by means of the first

Call information to determine whether the first destination call a number of additional

Passengers is assigned, resulting in the number of additional passengers an additional space in a first destination call serving elevator car.

The destination call controller is further configured to provide information about

to generate additional space if the number of additional passengers is to be assigned to the first destination call, and if the first destination call is to be assigned a number of additional passengers, the first destination call by means of a

Allocation algorithm using the information to the additional

Allocate space to transport the first passenger from the call input floor to the destination floor.

In the embodiments of the technology described herein, the above-described situations that after a destination call of a passenger u. U. additional, unscheduled passengers with the same destination boarding, taken into account.

According to the technology, in the call allocation, the destination call controller makes an assumption about a number of additional passengers who want to be transported together with a calling passenger without themselves inputting a destination call and have a corresponding space requirement in the elevator car. Based on data stored in a database on the passenger behavior on the floors, the technology differs from the usual approach that for each destination call a space requirement for a

Passenger is scheduled, from. This allows more realistic assumptions about the actual space requirements to be made, which u. a. As a result, the elevator system can be operated with improved efficiency, which also enables an optimization of waiting times for the passengers.

The data stored in the database can be organized in different ways. In one embodiment, the database is in one

Stored memory device, wherein in the database a plurality of data records is stored. Each record has a predefined description of a call situation Data fields, where a first data field indicates the call input floor, a second data field a time window, a third data field the destination floor and a fourth data field the number of additional passengers for the call situation described in the data record.

With the help of such a database, the technology described here determines whether a number of additional passengers are to be assigned to the first destination call. According to one exemplary embodiment, the database is accessed and determined as to whether the first destination call corresponds to a call situation stored in the database. If this is the case, this results for the call situation given by the first destination call

Number of additional passengers. Generating additional space information information therefore involves reading the fourth data field to determine the number of additional passengers. The data stored in the database can be determined in different ways. In one embodiment, the elevator system includes a

A sensor system coupled to the destination call controller and the storage device. The sensor system determines information about a number of passengers boarding the elevator car on a floor. The sensor system can, for. For example, the sensor system may be used to determine the number of additional passengers indicated in the fourth data field. In one embodiment, the sensor system includes sensors located on the floors that communicate with the person via a line

Destination call control device and the memory device are coupled. A sensor of the sensor system comprises in one embodiment a camera, and the

Sensor system is designed to take pictures from the camera the number of

To identify passengers. As an alternative to such a self-learning system, people can control the behavior of passengers depending on the time of day and the time of day

Observe and record on weekdays to extract data for the database. In one embodiment, the destination call control device is further configured to adapt the information generated for additional space requirements by means of the information ascertained by the sensor system to the number of passengers entering and to provide the information adapted to the operation of passengers to use additional space. Thereby, the planning of the operating order of passengers can be improved because, for. B. the (assumed) additional space requirements can be increased or decreased by means of the number of actually boarding passengers.

In one embodiment, the space requirement of the first passenger is increased by the space requirement of the additional passengers for the allocation of the first destination call. The resulting total space requirement is fed to the allocation algorithm. In this case, it is an advantage that the allocation algorithm does not have to be extended or otherwise changed in comparison with known methods since the modification of the space requirement takes place independently of the allocation algorithm. In one embodiment, for allocating the first destination call, the additional space information is kept separate from the first destination call; both are fed separately to the allocation algorithm. It is an advantage that the

Allocation algorithm with simpler or even more complicated rules can be added or changed to accommodate the extra space in different

Planning steps. Typical planning steps are calculating the space requirements for passengers waiting on a floor, or calculating the space requirements for passengers, which could be transported together in the elevator car at the same time. In both cases, the individual normal and the individual additional space requirements can be taken into account for each of the passengers considered , For example, if a number of destination calls are entered from different passengers at the first time, the space allocated for the destination calls is based on the space required, for one passenger per destination call, from the number of destination calls and a maximum number of additional passengers , In this case, a number of additional passengers is determined for each destination call and decimal destination call to which the maximum number of additional passengers is assigned. This allows the maximum number of additional passengers to be determined. If, for example, there are three destination calls, two of these destination calls each being assigned an additional passenger and one of the destination calls being assigned to three additional passengers, the maximum number of additional passengers is equal to three. This has the advantage that at too few calls with more space is expected, but with enough many calls no unnecessary additional space requirement is more into account.

In another example, when a number of destination calls from different passengers are input substantially at the first time, the allocation of the

Destination calls are based on a space requirement which, with one passenger per destination call, per destination floor results from the number of destination calls and a maximum number of additional passengers. In this case, a number of additional passengers is determined for each destination call and each destination floor and determines a maximum value of the additional space required per destination floor; the resulting maximum values are added. This has the advantage that no unnecessary additional space is scheduled for passengers with the same destination with multiple calls, but is expected for passengers with different destinations each with additional passengers traveling and thus enough space is scheduled. In the following, various aspects of the improved technology are explained in more detail by means of exemplary embodiments in conjunction with the figures. In the figures, identical elements have the same reference numerals. Show it:

1 is a schematic representation of an embodiment of an elevator system in a building,

Fig. 2 is an exemplary illustration of an embodiment of a

Destination call control device, and

3 shows an exemplary representation of an exemplary embodiment of a method for allocating a destination call on the basis of a schematic flowchart.

Fig. 1 shows a schematic representation of an embodiment of a

Elevator system 1 in a building 2; In principle, building 2 can be any type of multi-storey building (eg residential building, hotel, office building, sports station, etc.) or a ship

Functions of the elevator system 1 explained as far as they appear to be useful for an understanding of the technology described here. The building 2 shown in Fig. 1 has a plurality of floors L1, L2, L3, which are served by the elevator system 1, that is, a passenger 4 can from the elevator system 1 from a boarding floor on a Destination floor. The boarding floor is also called

Call input floor called.

In the exemplary embodiment shown, the elevator system 1 has an elevator car 10 which can be moved in an elevator shaft 18 and is connected to a drive unit (DR) 14 via a suspension element 16 (cables or belts) and is suspended from this drive unit 14. It may be a traction elevator, with further details, such as a counterweight and guide rails in Fig. 1 are not shown. The elevator control (EC) 12 is connected to the drive unit 14 and controls the drive unit 14 to move the elevator car 10 in the shaft 18. The function of a traction elevator, its components and the tasks of an elevator control 12 are well known to those skilled in the art. In another embodiment, the elevator system 1 may comprise a hydraulic elevator. One skilled in the art will also recognize that the elevator system 1 may comprise multiple cabins, or one or more groups of elevators.

The elevator system 1 shown in FIG. 1 is equipped with a destination call control device whose function is implemented in the control device (CTRL) 8 in the embodiment shown. The control device 8 is also referred to as

Destination call control 8 or destination call control device 8 denotes. The

Controller 8 may in one embodiment be fully or partially implemented in elevator controller 12. If the elevator system 1 comprises one or more groups of elevators, the destination call controller 8 or its function can be implemented in an elevator group controller. The destination call controller 8 informs a destination call of a passenger 4 inputted to a terminal 5 of the floor of one of u. U. several elevator cars 10 and communicates the corresponding

Allocation information via a communication bus 24 to the elevator controller 12.

The principal function of a destination call control and the call allocation performed by it are known, for example from the book by G. C. Bamey et al.,

Elevator Traffic Analysis Design and Control, Rev. 2nd ed., 1985, pp. 135-147, or the above-mentioned patent document EP 0 443 188 B1. For example, this patent document describes that a computer can be used at any time for each elevator of the

Elevator system the load, the location and the operating status of an elevator car, the Operating status of a drive knows and additional information over the past

Traffic and currently valid bonus / penalty factors. On the basis of this information, the described destination call allocation algorithm divides newly entered destination calls in the sense of predetermined criteria as optimally as possible to the elevators. These criteria are essentially functional requirements for the call operation. The basis of the destination call allocation are calculations of the

Operating costs. The individual calculated operating costs are compared with each other by call and the elevator with the lowest operating costs is determined to operate the destination call. Further details on the structure of the elevator system 1 are given elsewhere in this description.

Fig. 2 shows an exemplary representation of an embodiment of a

Destination call control device 8. In this representation, the

Destination call control device 8 more functional units, eg. Legs

Zielrufauswerteeinheit 26, which is connected to the floor terminals 5, a

Call allocation unit 36, a storage device 34 with a database 28 and a processor 30 which controls the destination call control unit 8. The processor 30 has an output 32 which is connected to the communication bus 24. The person skilled in the art recognizes that the functional units shown can be combined to form a unit in another representation.

In the situation shown in Fig. 1, the technology described here is advantageously applicable to operate the elevator system 1 with the highest possible efficiency and best possible comfort for the passengers 4 (especially with respect to the waiting time). Summarized briefly and by way of example, the operation of the elevator system 1 according to an exemplary embodiment is as follows: If a passenger 4 ("calling passenger 4") calls an elevator car 10 on a floor L1, L2, L3 by entering a destination call, the destination call controller 8 makes an assumption a number of passengers 4 who want to be transported together with the calling passenger 4 and have a corresponding space requirement in the elevator car 10. This assumption is based on stored

Data indicating for each floor Ll, L2, L3 how many passengers 4 are expected at the time of the call input, in addition to the calling passenger 4. The data can be obtained from observations of the behavior of the passengers 4 (empirical values) or with the help of a self-learning system and z. For each Floor Ll, L2, L3 depending on the time of day and the day of the week. The destination call controller 8 makes such an assumption for each further destination call which is entered on another floor L1, L2, L3 and u. U. together with the previously entered destination call can be operated. Since each elevator car 10 can only accommodate a limited number of passengers 4, the destination call controller uses the assumptions made for the call allocation and the planning of a journey. The assumptions may, for example, lead the planning to rule out an elevator car 10 that is cheap with regard to the operating costs, although it might still have room for a few passengers 4, and allocates instead an elevator car 10 from the outset, which is unfavorable in terms of costs but has more space for the expected passengers 4.

As mentioned above, the destination call control uses assumptions that are in one

Embodiment based on stored data. These data are stored in the database 28 of the memory device 34 shown in FIG. The database 28 stores a plurality of records, each record being predefined, one

Has descriptive data fields. FIG. 2 shows, by way of example, four data fields, the number of which may be larger or smaller in other exemplary embodiments. A first data field specifies the call input floor, a second data field

Time window, a third data field, the destination floor and a fourth data field, the number of additional passengers (4) for the call situation described in the record. The in the

Data contained in database 28 may be organized, for example, according to the exemplary structure shown in the following table (Table 1). The table can be called a look-up table. The information in the table and its organizational structure are to be understood as exemplary.

In the following, some of the exemplary calling situations shown in Table 1 are described by way of example. According to one of these call situations (line 1 in Table 1) a passenger 4 on the floor Ll between 7:00 and 7:30 a (first) destination call on the floor L3 a. The destination call control according to Table 1, the assumption that not only the calling passenger 4 (basic assumption) would like to be transported to the floor L3, but also five additional passengers 4. This destination call thus correspond to a total of six passengers 4. Such a situation may, for. B., if this

Passengers 4 should be present at their workplaces between 7:00 and 7:30.

If there is no further destination call at about the time of the (first) destination call in the time window between 7:00 and 7:30, the destination call control can allocate the destination call to an elevator car 10 in a known manner (eg, after a cost analysis)

Floor Ll on the floor L3 performs. In contrast, if there is another (second) destination call, z. For example, if a destination call entered on floor Ll is to floor L2, and if Table 1 does not include the number of additional passengers (ie, the number of additional passengers is zero), the destination call controller may initiate the call arbitration from the basic assumption (one passenger per destination call) , Is it in this

For example, about an elevator car 10 having a passenger capacity of eight persons, the destination call controller 8 may allocate the destination call of that passenger 4 to the elevator car 10 allocated for the transportation of the six passengers 4 (first destination call) to the floor L3. On the floor Ll rise thus seven passengers 4 in the elevator car 10 a.

However, a different allocation results if, for example, at the time of the first destination call on the floor L2 a third destination call is entered on the floor L3 (line 3 in Table 1). According to Table 1, the destination call controller makes the assumption that the calling passenger 4 and four additional passengers 4 want to be carried. The first

Destination call (six passengers 4) assigned elevator car 10 with a capacity of eight people can no longer accommodate the waiting on the floor L2 five passenger 4 (third destination call). For the call allocation, this means that the destination call controller 8 does not allocate the third destination call to the elevator car 10, which is planned for the trip from the floor L1 to the floor L3, because there is not enough space in the cabin with the scheduled additional passengers. Instead, the destination call controller 8 may allocate another elevator car 10 to the third destination call. This can be avoided that because of the expected additional passengers when stopping on floor L2 too little space for boarding the passengers waiting there. In addition, can with it u. U. a minimized waiting time for waiting on the floor L2 passengers 4 result. Alternatively, if no passengers z. For example, from floor Ll to floor L2, the destination call controller 8 may allocate the first and third destination calls to the same elevator car 10 and schedule the trips so that the elevator car 10 is first moved from floor Ll to floor L3 to the first destination call and then from floor L3 to floor L2 to serve the third destination call. Although the sequence of serviced floors in this case may be the same as for systems with the above-mentioned bypass function, the method and its effect are different: the bypass function may only operate under certain circumstances (for example, if no passengers Floor Ll drive to floor L2) prevent the cabin stops on floor L2, where there is not enough space for boarding passengers waiting there, and will also lead to markedly longer waiting times for the passengers waiting on floor L2. These disadvantages do not know the disadvantages of the method described here, since in any case a stop of the already too heavily filled cabin on floor L2 is avoided and the waiting times of the passengers at all

Floors can already be taken into account during planning and minimized.

Table 1 also shows a situation (line 4) that may arise in an office building around lunchtime. For a destination call entered on floor L3 in a time window between 11: 30-12: 30 on floor Ll becomes

assumed that in addition to the calling passenger 4 still want to drive seven additional passengers 4 from the floor L3 to the floor Ll. The elevator car 10 with a capacity of eight passengers is fully occupied in this case. The destination call control 8 plans no further stops for this trip.

The call situations indicated in Table 1 can be determined from observations of the behavior of the passengers 4 within a specified period of time. The fixed period may be, for example, one or two months (or longer), the observations z. At intervals of one week (i.e., 7 days observation, 7 days interruption). The observations may, for example, be recorded by one or more persons documenting the passenger behavior per floor L1, L2, L3 as a function of the time of day and the day of the week. The

Observations may u. U. supplemented by surveys of passengers 4. With the help of these observations, the time windows can be set and the number of times additional passengers 4 (eg, by means of determining the average) are determined. Such observations can be documented for all floors L1, L2, L3 or only for selected floors L1, L2, L3. As a result, it is possible to determine time-dependent behavior patterns with regard to elevator usage for each floor L1, L2, L3. If the complete table 1 is present, the elevator system 1 can be configured accordingly. Those skilled in the art will recognize that Table 1 may be updated as the use of Building 2 and thus the patterns of behavior change, e.g. B. if a previously unused floor Ll, L2, L3 is used by a company with a large number of people. In another embodiment, the passenger behavior can be determined by means of a sensor system. In Fig. 1, the sensor system is representatively represented by sensors 6, wherein on each floor Ll, L2, L3 a sensor 6 is arranged, which is connected to a line 22. The sensor system can supplement or replace the observations mentioned by persons (it can be used as self-learning

System). In one embodiment, the sensor system includes, for. B. a counter that determines the on a floor Ll, L2, L3 entering the elevator car 10 passengers 4. The counting device may comprise a camera (eg for image recordings in the visible optical spectrum or in the infrared range) in conjunction with an image processing device which determines the number of passengers 4 from the image recordings. In another embodiment, the counting device may use a load measuring device of the elevator car 10 to determine the number of passengers 4 going to the floor Ll, L2, L3 in question. In addition to this information provided by the counter, the

In this case, the sensor system is communicatively connected to the destination call controller 8. In this case, the destination call controller 8 may use the information acquired by the sensor system to determine the destination call Planning to improve the operation further, z. B. by the additional space required by currently waiting or transported in an elevator passengers increased or decreased. For example, the destination call control according to Table 1 initially makes the assumption that in the case of a (first) destination call on the floor Ll between 7:00 and 7:30 on the destination floor L3 with five additional passengers 4, so a total of six passengers. 4 is to be expected; However, if, after boarding a sensor system, the information is available that in fact a total of two passengers 4 had risen, the destination call control can reduce the additional space requirement of five to an additional passenger and re-assess the situation, eg. B. plan for a stop on floor L2, if there is enough space for passengers to get there.

Alternatively, there is no connection to the destination call control 8, but from the

Sensor system and the destination call control 8 separately acquired information can be later brought together and examined, for. B. in a use for it

Computer system. Analogous to the observations by persons, by the

Sensor system during a specified period of passenger behavior per

Floor Ll, L2, L3; so that the complete table 1 can be determined. In addition, Table 1 may be updated by the sensor system, for example, as needed or according to a predetermined schedule.

With the understanding of the basic structure of the elevator system 1 described in connection with FIG. 1 and FIG. 2 and the example shown in Table 1

In the following, a description will be given of an embodiment of a method for operating the elevator system 1, in particular a method for allocating a destination call, in connection with FIG. 3. FIG. 3 shows an example

Flowchart of a method for allocating a destination call to an elevator car 10 of the elevator system 1. The method according to FIG. 3 starts in a step S1 and ends in a step S8. The method initially waits to receive a destination call (steps S2 and S3). If a passenger 4 at a floor terminal 5 inputs a destination call, this is received by the destination call evaluation unit 26 of the destination call controller 8. The person skilled in the art recognizes that, depending on the traffic volume, the destination call evaluation unit 26 can receive several destination calls simultaneously or within a short period of time. In a step S4, the received destination call is evaluated to determine call information. In the case of multiple destination calls, each destination call is evaluated. Criteria for the evaluation are, for example, the call input floor, the destination floor or the time of the destination call, or combinations thereof. Point of time the destination call is z. B. recorded as time and calendar date. The call information comprises, for example, the call input floor and / or the destination floor.

In a step S5, an additional space requirement in the elevator car 10 is determined by means of the call information. This determination of the additional space requirement uses the data stored in the database 28, which are organized in an embodiment according to Table 1. In one exemplary embodiment, the processor 30 checks whether the received destination call (or its criteria) corresponds to a call situation documented in Table 1. If this is the case, the additional space required results from the number of additional passengers 4 indicated in Table 1 for this call situation.

In a step S6, in one exemplary embodiment, the information of the destination call is modified with the additional space requirement determined in step S5 (variant A). From each destination call results implicitly or explicitly information about what space is required in the elevator car 10 for the relevant destination call. The "normal" space requirement is z. B. per destination call space for a passenger. The information is z. B. modified so that the normal space requirement by the determined additional space requirement (eg + 2 passengers) is increased (space requirement (new): 1 + 2 = 3 passengers). This modified information is forwarded to the subsequent call allocation (step S7).

In step S6, according to another embodiment, the information of the destination call is supplemented with the additional space requirement determined in step S5 (variant B). In this embodiment, the information about the normal space requirement of the input destination call and the information determined for additional space requirements are kept separate and passed both for the call allocation (step S7).

In step S7, the method determines the allocation of the destination call. The method performs an allocation algorithm for this; such allocation algorithms are known in the art, s. for example, the above-mentioned document EP 0 443 188 B1 or the above-mentioned book by G. C. Bamey et al. According to variant A, the

Call allocation on the assumption that a destination call has been entered, the space requirement of z. B. has three passengers, so the space required corresponds to the modified in step S6 information. This destination call is implemented by

Allocation algorithm assigned in a known manner; the allocation algorithm must In contrast to known methods, these are not extended or otherwise changed, since the modification of the space requirement already takes place in the preceding step S6 and thus independently of the allocation algorithm. Variant B differs in the call allocation of variant A in that the

Call allocation is not simply based on the space required in the elevator car 10, which results from adding up the normal space requirements and additional space requirements. This difference arises, for example, when a destination call of a passenger 4 is to be allocated on a floor L1, L2, L3, on which one or more other passengers 4 have already been allocated to the elevator car 10. According to variant B is in

Step S7 does not simply add up the normal and additional space requirements of the calling passengers 4, but handles them separately. For example, the normal space requirement may be added up (eg, four destination calls will give a normal footprint for four passengers 4), but the additional footprint of the passengers may be limited to the maximum additional footprint of a single passenger.

This has the advantage that when too few calls with more space is expected, but with enough many calls no unnecessary additional space is taken into account more. In variant B, the allocation algorithm with simpler or even

complements or modifies more complicated rules to take account of the additional space required in various planning steps. Typical planning steps are calculating the space requirement for passengers 4 waiting on a floor L1, L2, L3, or calculating the space requirement for passengers which could be transported together in the elevator car 10 simultaneously. In both cases, for each of the passengers 4 considered, the individual normal and the individual additional space requirements are taken into account in the example already mentioned above, the space requirement of all considered passengers was determined so that the sum of the normal space requirement of the passengers and the maximum of the additional space requirement of the passengers are added together. As a further example, instead of the maximum of the additional space requirement of all passengers, the maximum of the additional space requirement could first be determined per destination and these values could be added together across all destinations; This has the advantage that for passengers with the same destination with multiple calls no unnecessary additional space is scheduled, but for passengers with different destinations in each case with additional passengers traveling is expected and thus enough space is scheduled.

To describe further components and functions of the elevator system 1, reference is again made to FIG. The arranged on the floors Ll, L2, L3

Floor terminals 5 are z. B. in the vicinity of elevator doors 6 and communicatively connected to the control device 8 via the line 22. In the embodiment shown, the building 2 has three floors L1, L2, L3 and on each floor there is a floor terminal 5. But there may also be only two or more than three floors; it is also possible that on one floor

Ll, L2, L3 more than one floor terminal 5 is present.

The destination call control device 8 is communicatively connected to the elevator controller 12 and the floor terminals 5 as described above. By communicative connection is meant in this specification a direct or indirect connection that allows unidirectional or bidirectional communication between two entities. In this case, data signals and / or control signals are transmitted in a manner known per se. Such a connection may be through an electrical line system (either as a point-to-point connection system or as a bus system where the units connected to the bus system are addressable)

Radio system or a combination of a radio system and a line system done. In Fig. 1, the communicative connection is exemplified by lines 20, 22, wherein the line 20 between the communication bus 24 and the car 10 and the line 22 connects the floor terminals 5 with the control device 8. In one embodiment, the conduit 22 may be a

Communication bus system to which the floor terminals 5 are connected. Similarly, the line 20 may be a communication bus system.

In another embodiment, at least one floor terminal 5 may be communicatively connected to the destination call control device 8 via a radio system. In another embodiment, a mobile electronic device (eg, mobile phone, smartphone, smartwatch, tablet PC) may be used instead of a floor terminal 5 to input a destination call. The mobile device may also display a message (eg, "Elevator A") about the elevator assigned to this destination call. For a wireless Communication with the elevator system 1, the mobile electronic device has a radio module, for example a Bluetooth, an RFID and / or an NFC module.

The person skilled in the art recognizes that the destination call control device 8 or its functionality can also be part of the elevator control 12 or of a floor terminal 5. In such a case, for example, the separate representation of the control device 8 in Fig. 1 could be omitted. If the destination call control device 8 or its functionality is integrated into the elevator control 12, the elevator control 12 represents the control device. Depending on the configuration, therefore, the implementation of the communicative connections also changes. Fig. 1 is thus to be understood as a schematic representation of an embodiment of the elevator system 1.

In one exemplary embodiment, a floor terminal 5 is arranged on each floor L1, L2, L3, for example in the area of access to an elevator car 10. In one exemplary embodiment, the floor terminal 5 comprises a keyboard or a touch-sensitive screen (touchscreen) such that a passenger 4 enters

Destination floor (i.e., a destination call) can enter. In another embodiment, the floor terminal 5 comprises a device for recognizing a

Authorization parameter associated with a passenger 4. ln one

Embodiment, this device is a reader for a carried by a passenger 4 information carrier. If the passenger 4 presents the information carrier to the reading device, the reading device reads information from the information carrier, which serves, for example, to recognize an operating authorization. Only when the passenger 4 is authorized to operate the input terminal 5 can the passenger 4 make an entry. Depending on the configuration, a destination call can also be triggered with the information read without further intervention by the passenger 4. In one embodiment, the information carrier is designed to be similar to a card, for example in the form of a credit card or an employee card. Depending on the embodiment, an externally contactable memory chip, an RFID transponder in conjunction with a is located in or on the information carrier

Memory chip or external (optically) readable code, eg. As alphanumeric characters, a QR code or a bar code (barcode). Alternatively, the

Functionality of the information carrier also on a portable electronic device (z. B. mobile phone or smartphone) to be realized. On the displays of such devices, for example, alphanumeric characters, QR codes, barcodes or

Color pattern codes are displayed. Such devices also allow one

Radio connection with other electronic devices, for example via known wireless technologies such as Bluetooth, WLAN / WiFi or NFC. The reader of the

Floor Terminals 5 is compatible with the technology used

Information carrier. Those skilled in the art will also recognize that the reader may also be configured for more than one technology.

Claims

claims

1. A method for operating an elevator system (1) in a building (2), wherein the elevator system (1) has a destination call control device (8) and an elevator car (10) which is located between floors (L1, L2, L3) of the building (2). is movable and has a fixed passenger capacity, comprising:

Evaluating a first destination call input on a floor (L 1, L 2, L 3) from a first passenger (4) at a first time in order to determine a first call information from the first destination call, the first

Call information contains information about a call input floor (L1, L2, L3) and / or a destination floor (L1, L2, L3);

Determining, by means of the first call information, whether a number of additional passengers (4) is to be assigned to the first destination call, wherein the number of additional passengers (4) results in an additional space requirement in an elevator car (10) serving the first destination call;

Generating additional space information when the first destination call is to be allocated a number of additional passengers (4); and,

if a number of additional passengers (4) are to be assigned to the first destination call, allocating the first destination call by means of an allocation algorithm using the information for additional space required to move the first passenger (4) from the call input floor (L1, L2, L3) to the destination floor ( Ll, L2, L3).

2. The method of claim 1, wherein determining if the first destination call is to be assigned a number of additional passengers (4),

accessing a database (28) in which a plurality of data records are storable, wherein a record predefined, a call situation

descriptive data fields, with a first data field the

Call input floor, a second data field indicates a time window, a third data field the destination floor and a fourth data field the number of additional passengers (4) for the call situation described in the data record, and

determining whether the first destination call corresponds to a call situation stored in the database (28).

The method of claim 2, wherein generating additional space information includes reading the fourth data field to determine the number of additional passengers (4).

4. The method according to any one of claims 1 to 3, wherein for the allocation of the first

Zielrufs the footprint of the first passenger (4) increased by the space requirements of the additional passengers (4) and the resulting total space requirements the

Allocation algorithm is supplied.

5. The method according to any one of claims 1 to 3, wherein for the allocation of the first

Zielrufs the information on additional space required is kept separate from the first destination call and both separately fed to the allocation algorithm.

A method according to claim 5, wherein, when a plurality of destination calls from different passengers (4) are input substantially at the first time, for the

Assigning the destination calls is based on a space requirement, resulting in one passenger (4) per destination call, the number of destination calls and a maximum number of additional passengers (4), for each destination call determines a number of additional passengers (4) and from this the destination call to which the maximum number of additional passengers (4) is assigned.

A method according to claim 5, wherein when a plurality of destination calls are input from substantially different passengers (4) at the first time, the allocation of the destination calls is based on a space requirement which, with one passenger (4) per destination call , from the number of destination calls and a maximum number of additional passengers (4), whereby a number of additional passengers (4) is determined for each destination call and each destination floor and from this a maximum value of the additional space requirement per destination floor is determined and the resulting maximum values be added.

8. elevator system (1) in a building (2), comprising:

an elevator car (10) movable between floors (L1, L2, L3) of the building (2) and having a fixed passenger capacity; and

a destination call control device (8) configured to to evaluate a first destination call entered on a floor (L1, L2, L3) from a first passenger (4) at a first time in order to determine first call information from the first destination call, the first call information relating to a call input floor (L1, L2, L3) and / or one

Destination floor (Ll, L2, L3);

determine, by means of the first call information, whether a number of additional passengers (4) is to be assigned to the first destination call, wherein the number of additional passengers (4) results in an additional space requirement in an elevator car (10) serving the first destination call;

Generating information on the additional space required if a number of additional passengers (4) is to be assigned to the first destination call; and

if a number of additional passengers (4) are to be assigned to the first destination call, to allocate the first destination call by means of an allocation algorithm using the additional space information in order to move the first passenger (4) from the call input floor (Ll, L2, L3) to the destination floor ( Ll, L2, L3).

An elevator system (1) according to claim 8, further comprising

Memory means (34) in which a database (28) is stored, in which a plurality of data records are stored, each data record having predefined data fields describing a call situation, a first data field indicating the call input floor, a second data field indicating a time window third data field the destination floor and a fourth data field the number of additional passengers (4) for the call situation described in the data record.

The elevator system (1) of claim 9, further comprising a sensor system coupled to the destination call controller (8) and the memory device (34), the sensor system determining information about a number of passengers (4) located on a floor ( Ll, L2, L3) enter the elevator car (10).

11. elevator system (1) according to claim 10, wherein the sensor system on the

Floors (Ll, L2, L3) arranged sensors (6), which are coupled via a line (22) with the destination call control device (8) and the memory device (34).

12. elevator system (1) according to claim 11, wherein a sensor (6) of the sensor system comprises a camera and the sensor system is configured to determine the number of passengers (4) from image recordings of the camera.

13. elevator system (1) according to any one of claims 10- 12, wherein the

Destination call control device (8) is also designed to adapt the information generated for additional space requirements by means of the information determined by the sensor system to the number of passengers (4) and to use for an operation of the passengers (4) the adapted information for additional space.

14. elevator system (1) according to any one of claims 8-13, wherein the

Destination call control device (8) is also configured to increase the space requirement of the first passenger (4) by the space requirement of the additional passengers (4) for allocating the first destination call and to supply the resulting total space requirement to the allocation algorithm.

15. elevator system (1) according to any one of claims 8 - 13, wherein the

Destination call control device (8) is also designed to keep for the allocation of the first destination call the information for additional space separately from the first destination call and to supply both separately to the allocation algorithm.