公开(公告)号：US5864680A

公开(公告)日：1999-01-26

申请号：US869473

申请日：1997-06-05

申请人： Warren A. Edblad ,  Linda L. Santoline ,  Gilbert W. Remley ,  Carl J. Staab ,  Albert W. Crew

发明人： Warren A. Edblad ,  Linda L. Santoline ,  Gilbert W. Remley ,  Carl J. Staab ,  Albert W. Crew

IPC分类号： G06F13/00 ,  G06F15/00 ,  H04L12/18 ,  G06F15/173

CPC分类号： H04L12/18

摘要： A computer network system repetitively distributes messages including uniquely identified blocks of real time data containing a current data image over a broadcast communications network to all real time stations for storage of each repetition of each entire block of data directly in station memory at a unique address space assigned to that uniquely identified block of data. The real time stations receive the blocks of data and alternatively receive other messages from the real time stations. The other messages have a recognized standard protocol, such as the TCP/IP or UDP/IP protocol of the Internet Protocol Suite.

摘要翻译： 计算机网络系统将包含唯一标识的包含当前数据图像的实时数据的块的消息广播地分发到广播通信网络，以将所有实时站重复地分发消息，以便在唯一地址空间中直接在站存储器中存储每个整个数据块的每次重复 分配给唯一标识的数据块。 实时站接收数据块，或者从实时站接收其他消息。 其他消息具有公认的标准协议，例如因特网协议套件的TCP / IP或UDP / IP协议。

公开(公告)号：US5305314A

公开(公告)日：1994-04-19

申请号：US901445

申请日：1992-06-19

申请人： Warren A. Edblad ,  Linda L. Santoline ,  Carl J. Staab ,  Charles W. Einolf, Jr. ,  Albert W. Crew

发明人： Warren A. Edblad ,  Linda L. Santoline ,  Carl J. Staab ,  Charles W. Einolf, Jr. ,  Albert W. Crew

IPC分类号： G06F13/00 ,  H04L12/433 ,  H04L12/64 ,  H04N1/32 ,  H04N1/46 ,  H04J3/16

CPC分类号： H04L12/433 ,  H04L12/64 ,  Y10S370/906

摘要： Real time periodic messages generated by a plurality of stations on a data communication network and having data periods ranging from a shortest to a longest, where the longest data period is an integer multiple of all the others, are assigned by a server station to transmit time slots, equal in duration to the shortest data period, on a global basis to minimize the number of messages transmitted by all stations during each transmit time slot.

摘要翻译： 由数据通信网络上的多个站产生的具有数据周期范围从最短到最长（其中最长数据周期是所有其他数据周期的整数倍）的数据周期的实时周期性消息由服务器站分配以传送时间 在全局的基础上持续时间相等于最短数据周期的时隙，以便在每个发送时隙期间最小化所有站发送的消息的数量。

公开(公告)号：US5179665A

公开(公告)日：1993-01-12

申请号：US436112

申请日：1989-11-13

申请人： Charles J. Roslund ,  Linda L. Santoline ,  Albert W. Crew ,  Gilbert W. Remley ,  William D. Ghrist, III

发明人： Charles J. Roslund ,  Linda L. Santoline ,  Albert W. Crew ,  Gilbert W. Remley ,  William D. Ghrist, III

IPC分类号： G06F15/167

CPC分类号： G06F15/167

摘要： Updated images of messages are passed between asynchronous digital processors using dual port shared memory. In the basic form of the invention, three buffers in shared memory are assigned to each message. Where one of the processors is a controller for a data link channel carrying n messages, 2n+1 buffers are provided in free shared memory space with 2 buffers assigned to each message at all times and a common buffer serving as the third buffer for all of the messages. Where linked buffers in local memory of a controller processor receive message updates from a data highway, two buffers in shared memory are assigned to each message and a linked buffer in the controller local memory serves as the third buffer. The buffers containing the message updates are passed between processors by use of a buffer status array in shared memory. A semaphore lock in the array permits only one processor at a time to assign or release buffers.

摘要翻译： 消息的更新映像在使用双端口共享内存的异步数字处理器之间传递。 在本发明的基本形式中，共享存储器中的三个缓冲器被分配给每个消息。 其中一个处理器是用于携带n个消息的数据链路信道的控制器，在空闲共享存储器空间中提供2n + 1个缓冲器，并且随时分配给每个消息的2个缓冲器，以及用作所有 消息。 当控制器处理器的本地存储器中的链接缓冲器从数据高速公路接收消息更新时，共享存储器中的两个缓冲器被分配给每个消息，并且控制器本地存储器中的链接缓冲器用作第三缓冲器。 包含消息更新的缓冲区通过使用共享内存中的缓冲区状态数组在处理器之间传递。 数组中的信号量锁只允许一个处理器分配或释放缓冲区。

公开(公告)号：US5826060A

公开(公告)日：1998-10-20

申请号：US628586

申请日：1996-04-04

申请人： Linda L. Santoline ,  Louis W. Gaussa, Jr. ,  Robert A. Shemony ,  Deborah D. Broderick ,  Thuy T. Tran

发明人： Linda L. Santoline ,  Louis W. Gaussa, Jr. ,  Robert A. Shemony ,  Deborah D. Broderick ,  Thuy T. Tran

IPC分类号： G05B17/02 ,  G06F15/46

CPC分类号： G05B17/02

摘要： A simulator for a distributed process control system utilizes a simulator station as an interface between a plant modeling computer and an instrumentation and control system which uses actual distributed processing units (DPUs) running actual process control software. The simulator station memory maps sensor signals received from the plant modeling computer through reflective memory directly to a memory-mapped input/output (I/O) interface of each DPU at the scan rate, or a multiple of the scan rate, of the DPU, and provides the control signals generated by the DPUs to the plant modeling computer at the same rates. A data highway such as in the actual system provides communications between the DPUs and between the DPUs and operator stations, (and potentially other man-machine interface stations) which provide operator signals used by the DPUs. The simulator station is also connected to the operator stations by the data highway for receiving the operator signals which can include signals controlling simulator operation.

摘要翻译： 用于分布式过程控制系统的模拟器利用模拟器站作为工厂建模计算机与使用实际的分布式处理单元（DPU）的实际过程控制软件的仪表和控制系统之间的接口。 模拟器站存储器通过反射存储器将从工厂建模计算机接收的传感器信号直接映射到DPU的存储器映射输入/输出（I / O）接口，扫描速率或扫描速率的倍数 并以相同的速率将DPU生成的控制信号提供给工厂建模计算机。 诸如在实际系统中的数据高速公路提供DPU之间以及提供由DPU使用的操作员信号的DPU和操作员站（以及潜在的其他人机接口站）之间的通信。 模拟站也通过数据高速公路连接到操作员站，用于接收操作员信号，该信号可以包括控制模拟器操作的信号。