公开(公告)号：US5241142A

公开(公告)日：1993-08-31

申请号：US644356

申请日：1991-01-22

Applicant: Kandasamy Thangavelu

Inventor： Kandasamy Thangavelu

IPC: B66B1/20 ,  B66B1/24

CPC classification number: B66B1/2408 ,  B66B2201/222 ,  B66B2201/402 ,  B66B2201/403 ,  Y10S706/91

Abstract: The present invention is directed to an elevator dispatching system for controlling the assignment of elevator cars. More particularly, the present invention is directed to a method of determining the commencement and/or conclusion of UP-PEAK and DOWN-PEAK periods of operation. For example, for commencing UP-PEAK operation, a lobby boarding rate is predicted, based on historical information of the number of passengers boarding the elevators at the lobby and the number elevators leaving the lobby. The predicted lobby boarding rate is compared with a predetermined threshold value. If the predicted lobby boarding rate is greater than the predetermined threshold value, UP-PEAK is commenced. In the preferred embodiment, the predetermined threshold value is a predetermined percentage of the elevator car's capacity. Additionally, the present invention is directed to a method of adjusting the threshold value based on actual passenger traffic. For example, once UP-PEAK is commenced, the load of the first few elevators leaving the lobby within a predetermined time interval is determined, and the threshold value is adjusted based on their determined load. If the determined load is greater than a certain percentage of the elevator car's capacity, indicative of starting UP-PEAK too late, the threshold value is decreased. Similarly, if the determined load is less than a certain percentage of the elevator car's capacity, indicative of starting UP-PEAK too soon, the threshold value is increased.

Abstract translation: 本发明涉及一种用于控制电梯轿厢分配的电梯调度系统。 更具体地，本发明涉及一种确定UP-PEAK和DOWN-PEAK操作周期的开始和/或结论的方法。 例如，为了开始UP-PEAK操作，可以根据登上大厅的电梯的乘客人数和离开大厅的数字电梯的历史信息预测大厅登机率。 将预测的大厅登机率与预定的阈值进行比较。 如果预测大厅登机率大于预定阈值，则开始UP-PEAK。 在优选实施例中，预定阈值是电梯轿厢容量的预定百分比。 另外，本发明涉及一种基于实际乘客流量来调整阈值的方法。 例如，一旦UP-PEAK开始，确定在预定时间间隔内离开大厅的前几台电梯的负载，并且基于它们确定的负载来调整阈值。 如果确定的负载大于电梯轿厢容量的一定百分比，表示启动UP-PEAK太晚，阈值就会降低。 类似地，如果确定的负载小于电梯轿厢容量的一定百分比，表示启动UP-PEAK太早，则阈值增加。

公开(公告)号：US4792019A

公开(公告)日：1988-12-20

申请号：US157543

申请日：1988-02-12

Applicant: Joseph Bittar ,  Kandasamy Thangavelu

Inventor： Joseph Bittar ,  Kandasamy Thangavelu

IPC: B66B1/18 ,  B66B1/20 ,  B66B1/24

CPC classification number: B66B1/2458 ,  B66B2201/302

Abstract: An elevator system contains a group of elevator cars. A group controller contains signal processing means for controlling the dispatching of the cars from a main floor or lobby in relation to differnt group parameters. During up-peak conditions, each car is dispatched from the main floor to an individual plurality of contiguous floors, defining a "sector". Sectors are contiguous. The number of sectors may be less than the number of cars. Floors that constitute a sector are assigned exclusively to a car and are displayed on an indicator at the lobby. Sectors are selected for assignment according to preset order (e.g. numerical). Cars are selected for assignment to a selected sector according to a preset order (e.g. numerical). If no car calls are made to the floors in the sector that is assigned to a car, the next sector is selected along with the next car according to that order. When an up hall call is made during the up-peak period, the car that is most able to serve the call is selected if it is assigned to a sector in the upper 2/3 of the building. Cars are evaluated for the assignment from the most favorable to the least favorable until the most favorable car serving a sector in the upper 2/3 of the building is found. Cars serving floors in the lower 1/3 of the building are never assigned to up hall calls during the up-peak period.

Abstract translation: 电梯系统包含一组电梯轿厢。 组控制器包含信号处理装置，用于根据不同的组参数来控制来自主楼层或大厅的轿厢的调度。 在高峰期，每辆汽车从主楼分配到独立的多个连续楼层，定义“扇区”。 部门是连续的。 行业数量可能会少于汽车数量。 构成扇区的楼层专用于汽车，并显示在大厅的指示器上。 根据预设顺序选择扇区进行分配（例如数字）。 选择汽车根据预设顺序（例如数字）分配给选定的扇区。 如果在分配给汽车的扇区中的楼层没有进行车辆呼叫，则根据该顺序与下一个轿厢一起选择下一个扇区。 在高峰期间进行起堂时，如果分配给建筑物上部2/3的扇区，则可以选择最能够服务呼叫的轿厢。 汽车被评估为从最有利到最不利的任务，直到找到建筑物上部2/3的最有利的汽车服务一个部门。 在高峰期间，服务于建筑物下1/3的地板的汽车从未被分配到起堂门厅。

公开(公告)号：US5786551A

公开(公告)日：1998-07-28

申请号：US568892

申请日：1995-11-30

Applicant: Kandasamy Thangavelu

Inventor： Kandasamy Thangavelu

IPC: B66B1/20 ,  B66B1/24 ,  B66B1/36

CPC classification number: B66B1/2458 ,  B66B2201/102 ,  B66B2201/211 ,  B66B2201/222 ,  B66B2201/225 ,  B66B2201/226 ,  B66B2201/233 ,  B66B2201/402 ,  B66B2201/403

Abstract: A group controller for controlling elevator cars in a building having a plurality of floors includes a traffic and traffic rate estimator for providing fuzzy estimates of traffic and traffic rate; a closed loop fuzzy logic controller for providing a control parameter in response to the fuzzy estimates of traffic and traffic rate and in response to an elevator control system output variable; and an elevator dispatcher for controlling the operation of the elevator cars during single source traffic conditions in response to the control parameter.

Abstract translation: 用于控制具有多个楼层的建筑物中的电梯轿厢的组控制器包括用于提供交通和交通率的模糊估计的交通和交通率估计器; 闭环模糊逻辑控制器，用于响应于交通流量和业务速率的模糊估计以及响应于电梯控制系统输出变量提供控制参数; 以及电梯调度器，用于响应于控制参数在单个源交通状况期间控制电梯轿厢的操作。

公开(公告)号：US5767460A

公开(公告)日：1998-06-16

申请号：US565469

申请日：1995-11-30

Applicant: Kandasamy Thangavelu

Inventor： Kandasamy Thangavelu

IPC: B66B1/20 ,  B66B1/24 ,  B66B1/18 ,  B66B1/16

CPC classification number: B66B1/2458 ,  B66B2201/102 ,  B66B2201/211 ,  B66B2201/222 ,  B66B2201/225 ,  B66B2201/226 ,  B66B2201/233 ,  B66B2201/402 ,  B66B2201/403 ,  Y10S706/91

Abstract: A group controller for controlling elevator cars in a building having a plurality of floors includes an elevator dispatcher for controlling the operation of the elevator cars during single source traffic conditions, the elevator dispatcher having a constraint for limiting car assignments in response to the constraint; and an adaptive contraint generator for modifying a value of the constraint in response to an elevator control system output variable. In one embodiment, the group controller includes a traffic and traffic rate estimator for providing fuzzy estimates of traffic and traffic rate; a fuzzy logic controller for providing a control parameter in response to the fuzzy estimates of traffic and traffic rate, the control parameter having a constraint for limiting a value of the control parameter; an adaptive constraint generator for modifying a value of the constraint in response to an elevator control system output variable; and an elevator dispatcher for controlling the operation of the elevator cars during single source traffic conditions in response to the control parameter.

Abstract translation: 用于控制具有多个楼层的建筑物中的电梯轿厢的组控制器包括用于在单个源交通状况期间控制电梯轿厢的操作的电梯调度器，电梯调度器具有响应于该约束而限制轿厢分配的约束; 以及用于响应于电梯控制系统输出变量修改约束值的自适应限制发生器。 在一个实施例中，组控制器包括用于提供业务和业务速率的模糊估计的业务和业务速率估计器; 模糊逻辑控制器，用于响应于业务和业务速率的模糊估计提供控制参数，所述控制参数具有限制所述控制参数的值的约束; 自适应约束生成器，用于响应于电梯控制系统输出变量修改约束的值; 以及电梯调度器，用于响应于控制参数在单个源交通状况期间控制电梯轿厢的操作。

公开(公告)号：US5168136A

公开(公告)日：1992-12-01

申请号：US776105

申请日：1991-10-15

Applicant: Kandasamy Thangavelu ,  V. Sarma Pullela

Inventor： Kandasamy Thangavelu ,  V. Sarma Pullela

IPC: B66B1/18 ,  B66B1/20 ,  B66B1/24 ,  B66B3/00 ,  G06Q10/00

CPC classification number: B66B1/2466 ,  B66B2201/402 ,  Y10S706/91

Abstract: A computer controlled elevator system (FIG. 1 ) using prediction methodology to enhance the system's elevator service, having "learning" capabilities to adapt the system to changing building operational characteristics, including signal processing means for computing the "best" prediction model to be used for prediction, the best factoring coefficients for combining real time and historic predictors associated with the best prediction model, the best data and prediction time interval lengths to be used, and the optimal number of look-ahead intervals or steps (for real time predictions) or look-back days (for historic predictions) to the extent applicable to the prediction model, etc. Using the algorithm(s) of the invention the best prediction methodology and associated parameters are selected by running on site simulations based on exemplary values and comparing the prediction results to recorded data indicative of the actual events that have occurred in the system over a past appropriate period of time. That which provides the most accurate predictions, i.e., those with a minimum error as determined by appropriate mathematical models (e.g., sum of the square of the prediction error or sum of absolute error), are thereafter used in the prediction methodology of the system until further evaluations indicate that further changes should be made.

Abstract translation: 一种使用预测方法来增强系统电梯服务的计算机控制的电梯系统（图1），具有“学习”能力以使系统适应于改变建筑物的运行特性，包括用于计算要使用的“最佳”预测模型的信号处理装置 为了预测，用于组合与最佳预测模型相关联的实时和历史预测变量的最佳因子系数，要使用的最佳数据和预测时间间隔长度以及预先间隔或步骤的最佳数量（用于实时预测） 或回溯日（对于历史预测）到适用于预测模型的程度等。使用本发明的算法，通过基于示例值运行现场模拟和比较来选择最佳预测方法和相关参数 预测结果记录指示系统中在过去的适当情况下发生的实际事件的数据 吃了一段时间。 提供最精确预测的那些，即具有由适当的数学模型确定的最小误差的那些（例如，预测误差的平方和或绝对误差之和）之后，在系统的预测方法中被使用直到 进一步评估表明应进一步改变。

公开(公告)号：US4846311A

公开(公告)日：1989-07-11

申请号：US209745

申请日：1988-06-21

Applicant: Kandasamy Thangavelu

Inventor： Kandasamy Thangavelu

IPC: B66B1/20 ,  B66B1/24

CPC classification number: B66B1/2458 ,  B66B2201/102 ,  B66B2201/211 ,  B66B2201/222 ,  B66B2201/302 ,  B66B2201/402 ,  B66B2201/403

Abstract: An elevator system containing a group of elevator cars (1-4) and a group controller (32) having signal processing means (CPU) for controlling the dispatching of the cars from a main floor or lobby (L) in relation to different group parameters. During up-peak conditions, each car is dispatched from the main floor to an individual plurality of contiguous floors, defining a "sector" (SN). Sectors are contiguous, and the number of sectors may be less than the number of cars, and a floor can be assigned to more than one sector. Floors that constitute a sector assigned exclusively to a car are displayed on an indicator (SI) at the lobby. Cars are selected for assignment by grouping floors into sectors and appropriately selecting sectors, so that each elevator car handles more or less an equal predicted traffic volume during varying traffic conditions, resulting in the queue length and waiting time at the lobby being decreased, and the handling capacity of the elevator system increased. Estimation of future traffic flow levels for the various floors for, for example, each five (5) minute interval, are made using traffic levels measured during the past few time intervals on the given day as real time predictors, using a linear exponential smoothing model, and traffic levels measured during similar time intervals on previous days as historic traffic predictors, using a single exonential smoothing model. The combined estimated traffic is then used to group floors into sectors ideally having at least nearly equal traffic volume for each time interval.

公开(公告)号：US4838384A

公开(公告)日：1989-06-13

申请号：US209744

申请日：1988-06-21

Applicant: Kandasamy Thangavelu

Inventor： Kandasamy Thangavelu

IPC: B66B1/18 ,  B66B1/20 ,  B66B1/24

CPC classification number: B66B1/2458 ,  B66B2201/102 ,  B66B2201/211 ,  B66B2201/222 ,  B66B2201/402 ,  B66B2201/403

Abstract: Elevator system with multiple cars (1-4) and a group controller (32) having signal processing means (CPU) controlling car dispatching from the lobby (L). During peak conditions (up-peak, down-peak and noontime), each car is dispatched and assigned to hall call floors having a large predicted number of passengers waiting on priority basis, resulting in queue length and waiting time at the lobby and upper floors being decreased, and system handling capacity increased. Estimations of future traffic flow levels for the floors for five minute intervals are made using traffic levels measured during the past few time intervals on that day as real time predictors, using a linear exponential smoothing model, and traffic levels measured during similar time intervals on previous similar days as historic traffic predictors, using a single exponential smoothing model. Combined prediction is used to assign hall calls to cars on priority basis for those floors having predicted high level of passenger traffic to limit maximum waiting time and car load. Noontime priority scheme is based on multiple queue sizes and percentages of maximum waiting time limits. Different waiting time limits can be used for lobby and above lobby up and down hall calls with automatic adjustment. During up-peak the lobby is given high priority. The lobby queue is predicted using passenger arrival rates and expected car arrival times. Down-peak operation uses multiple queue levels and percentages of waiting time limits, with estimated queues based on passenger arrival using car-to-hall-call travel time.

公开(公告)号：US4804069A

公开(公告)日：1989-02-14

申请号：US157542

申请日：1988-02-12

Applicant: Joseph Bittar ,  Kandasamy Thangavelu

Inventor： Joseph Bittar ,  Kandasamy Thangavelu

IPC: B66B1/06 ,  B66B1/20 ,  B66B1/24

CPC classification number: B66B1/2458 ,  B66B2201/102 ,  B66B2201/211 ,  B66B2201/215 ,  B66B2201/222 ,  B66B2201/302 ,  B66B2201/402 ,  B66B2201/403

Abstract: An elevator system contains a group of elevator cars. A group controller contains signal processing means for controlling the dispatching of the cars from a main floor or lobby in relation to different group parameters. During up-peak conditions, each car is dispatched from the main floor to an individual plurality of contiguous floors, defining a "sector". Sectors are contiguous. The number of sectors may be less than the number of cars. Floors that constitute a sector assigned exclusively to a car are displayed on an indicator at the lobby. Sectors and cars are selected for assignment in a cyclical or round-robin sequence. If the next car selected is not available for assignment, another car is selected. If no car calls are made to the floors in the sector that is assigned to a car, the next sector is selected. The floors in the sector assigned to a car are displaced to direct passengers to the car. If car calls to the floors are not made, the car doors are closed and a new sector is assigned to the car according to the sequence.

Abstract translation: 电梯系统包含一组电梯轿厢。 组控制器包含信号处理装置，用于根据不同的组参数来控制来自主楼层或大厅的轿厢的调度。 在高峰期，每辆汽车从主楼分配到独立的多个连续楼层，定义“扇区”。 部门是连续的。 行业数量可能会少于汽车数量。 构成专用于汽车的扇区的楼层显示在大厅的指示器上。 选择部门和汽车以循环或循环的顺序进行分配。 如果所选的下一辆车不可用于分配，则选择另一辆车。 如果在分配给汽车的扇区中没有进行车厢通话，则选择下一个扇区。 分配到汽车的行业的地板被移动，以将乘客引导到汽车。 如果没有制造到楼层的车辆通话，则门关闭，并且根据顺序将新的扇区分配给汽车。