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1. 发明授权

US5235143A Elevator system having dynamically variable door dwell time based upon average waiting time 失效
标题翻译：基于平均等待时间的动态系统具有动态可变门区时间
公开(公告)号：US5235143A
公开(公告)日：1993-08-10
申请号：US799503
申请日：1991-11-27
申请人： Zuhair S. Bahjat , V. Sarma Pullela
发明人： Zuhair S. Bahjat , V. Sarma Pullela
IPC分类号： B66B3/00 , B66B13/14
CPC分类号： B66B13/143
摘要： Disclosed are me and apparatus for establishing a Door Dwell Time for an elevator car. The method includes the steps of (a) accumulating, over a first interval of time, a total amount of time that expires between a time when a hall call is received to when an elevator door of the elevator car opens in response to the hall call; and, at the end of the interval of time, (b) determining an Average Waiting Time (AWT) by dividing the total amount of time by a number of hall calls that occurred during the first interval of time. The method further includes the steps of (c) comparing the AWT to a first AWT threshold value; and, if the AWT exceeds the first AWT threshold value, (d) decreasing the elevator car Door Dwell Time (DDT) by a time increment so as to obtain a revised DDT for use during a second time interval. If the AWT does not exceed the first AWT threshold value, the method further includes the steps of (e) comparing the AWT to a second AWT threshold value; and if the AWT is less than the second AWT threshold value, (f) increasing the elevator car DDT by the time increment so as to obtain a revised DDT for use during the second time interval.

2. 发明授权

US5168136A Learning methodology for improving traffic prediction accuracy of elevator systems using "artificial intelligence" 失效
标题翻译：使用“人工智能”提高电梯系统的流量预测精度的学习方法
公开(公告)号：US5168136A
公开(公告)日：1992-12-01
申请号：US776105
申请日：1991-10-15
申请人： Kandasamy Thangavelu , V. Sarma Pullela
发明人： Kandasamy Thangavelu , V. Sarma Pullela
IPC分类号： B66B1/18 , B66B1/20 , B66B1/24 , B66B3/00 , G06Q10/00
CPC分类号： B66B1/2466 , B66B2201/402 , Y10S706/91
摘要： 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.
摘要翻译：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。

3. 发明授权

US5345049A Elevator system having improved crowd service based on empty car assignment 失效
标题翻译：基于空车分配改善人群服务的电梯系统
公开(公告)号：US5345049A
公开(公告)日：1994-09-06
申请号：US134517
申请日：1993-10-08
申请人： Zuhair S. Bahjat , V. Sarma Pullela
发明人： Zuhair S. Bahjat , V. Sarma Pullela
IPC分类号： B66B1/18 , B66B1/20 , B66B1/24 , B66B3/00
CPC分类号： B66B1/2458 , B66B2201/102 , B66B2201/222 , B66B2201/402 , B66B2201/403
摘要： A method for controlling the dispatching of elevator cars, and apparatus for accomplishing the method. The method includes the steps of (a) receiving a hall call from a floor landing; (b) determining a current passenger load of an elevator car; (c) determining if a crowd signal is generated for the floor landing; and, if it is determined that a crowd signal is generated for the floor landing, (d) determining, from the current passenger load, if the elevator car is EMPTY. If it is determined that the elevator car is EMPTY, the method further includes the steps of (e) assigning an Empty Car Bonus to the elevator car; and (f) employing the Empty Car Bonus value in determining a Relative System Response for the elevator car. The Relative System Response is a function of a plurality of bonuses and penalties. The use of the invention increases the efficiency of the elevator system and serves to decrease the waiting time for persons waiting behind the hall call by increasing the probability of an empty car being assigned to a hall call having a crowd waiting behind the hall call.
摘要翻译：一种控制电梯轿厢调度的方法，以及完成该方法的装置。该方法包括以下步骤：（a）从楼层接收门厅呼叫; （b）确定电梯轿厢的当前乘客负载; （c）确定是否为地板着陆产生人群信号; 并且如果确定为地板着陆产生人群信号，则（d）从当前的乘客负载确定电梯轿厢是否为空。如果确定电梯轿厢是空的，则该方法还包括以下步骤：（e）将空汽车奖金分配给电梯轿厢; 以及（f）在确定电梯轿厢的相对系统响应时采用空车红利值。相对系统响应是多个奖金和惩罚的函数。本发明的使用增加了电梯系统的效率，并且通过增加空车被分配到具有等待在门厅呼叫之后的人群的门厅呼叫的概率，来减少等待门厅呼叫之后的人的等待时间。

4. 发明授权

US5317114A Elevator system having dynamic sector assignments 失效
标题翻译：电梯系统具有动态扇区分配
公开(公告)号：US5317114A
公开(公告)日：1994-05-31
申请号：US799572
申请日：1991-11-27
申请人： V. Sarma Pullela , Zuhair S. Bahjat
发明人： V. Sarma Pullela , Zuhair S. Bahjat
IPC分类号： B66B1/18 , B66B1/20 , B66B3/00
CPC分类号： B66B1/20
摘要： Method and apparatus is disclosed for operating an elevator system that includes a group of elevator cars servicing a plurality of floor landings divided into Sectors. The method includes the steps of, with a controller associated with each elevator car of the group, (a) determining when the elevator car has reached a Turn Around Point for returning the elevator car to a lobby; (b) initiating travel to the lobby; and (c) determining when the elevator car has reached a predetermined Sector Assignment Fixation Point. After reaching the predetermined Sector Assignment Fixation Point, the method further includes the steps of (d) communicating Sector-related information with other controller of other elevator cars of the group; and (e) based upon the communication, assigning to the elevator car a next Sector to be serviced after arrival at the lobby. A round-robin arbitration technique is disclosed for assigning Sectors among the elevator cars.
摘要翻译：公开了用于操作电梯系统的方法和装置，该电梯系统包括一组电梯轿厢，该电梯轿厢服务于划分为扇区的多个楼层平台。该方法包括以下步骤：与组中的每个电梯轿厢相关联的控制器，（a）确定电梯轿厢什么时候已经到达转向点，以将电梯轿厢返回到大厅; （b）开始前往大堂; 和（c）确定电梯轿厢何时已经到达预定的扇区分配固定点。在达到预定的扇区分配固定点之后，该方法还包括以下步骤：（d）将扇区相关信息与该组其他电梯轿厢的其他控制器通信; 以及（e）基于所述通信，在到达所述大厅之后向所述电梯轿厢分配待维修的下一个扇区。公开了一种循环仲裁技术，用于在电梯轿厢之间分配扇区。

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