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1. 发明授权

US5039980A Multi-nodal communication network with coordinated responsibility for global functions by the nodes 失效
标题翻译：多节点通信网络，节点对全局功能负责
公开(公告)号：US5039980A
公开(公告)日：1991-08-13
申请号：US471188
申请日：1990-01-26
申请人： John R. Aggers , Edward Schwarz
发明人： John R. Aggers , Edward Schwarz
IPC分类号： G06F13/00 , H04L12/417 , H04Q9/00
CPC分类号： H04L12/2602 , H04L12/403 , H04L12/417 , H04L43/00
摘要： An electronic network of communication and processing nodes particularly suitable for control of environmental systems has pluralities of the nodes which are sources for certain types of status messages each of which comprise communication of a particular kind of information on the network. To resolve the question of which of the nodes shall furnish each type of status message, one node is designated the coordinator node, and it stores a status message source list which associates the node assigned for each type of status message with the status message type itself and transmits all or a part of the list on the network to allow each of the status message source nodes to determine therefrom their responsibility with respect to each status message type. These status message source nodes can also transmit request messages on the network by which they request responsibility for furnishing a particular type of status message. Upon acceptance of the request in a request message, the coordinator node enters the node transmitting the request message into the status message source list in asociation with the status message type. In one embodiment, the coordinator node monitors the transmission of status messages on the network and if an instance arises where a status message is supplied by other than the one specified in the status message source list, takes remedial action. In another embodiment each node is given a priority for a particular type of status message, allowing the coordinator node to replace a node assigned to a particular type of status message with another node.

2. 发明授权

US4949337A Token passing communication network including a node which maintains and transmits a list specifying the order in which the token is passed 失效
标题翻译：令牌通过通信网络，包括维护和发送指定令牌被传递的顺序的列表的节点
公开(公告)号：US4949337A
公开(公告)日：1990-08-14
申请号：US303427
申请日：1989-01-30
申请人： John R. Aggers , Roger R. Roth
发明人： John R. Aggers , Roger R. Roth
IPC分类号： H04L12/417
CPC分类号： H04L12/417
摘要： A communication network has one master node which maintains an active master list (AML) containing the node addresses of all nodes to which the token will be passed. When nodes are added or deleted from the network, it is efficient in terms of data bus occupancy and individual processing time by the nodes if the successor address for each node is broadcast in a single message, and the availability of an AML makes this possible. The network has the capability of efficiently updating the AML whenever the configuration of the network is so changed.

3. 发明授权

US4657179A Distributed environmental/load control system 失效
标题翻译：分布式环境/负载控制系统
公开(公告)号：US4657179A
公开(公告)日：1987-04-14
申请号：US686320
申请日：1984-12-26
申请人： John R. Aggers , Ralph C. Brindle , Kenneth B. Kidder , David C. Ullestad
发明人： John R. Aggers , Ralph C. Brindle , Kenneth B. Kidder , David C. Ullestad
IPC分类号： G05D23/19 , H02J1/00
CPC分类号： G05D23/1905 , Y10T307/469
摘要： A distributed environmental/load control system comprising a thermostat operable to supply signals indicative of sensed and desired values of a parameter in an environmentally controlled space to a first controller operable to control condition changing equipment for regulating the parameter, the signals being transmitted over a communications link between the thermostat and first controller. A second controller which is operable to control a plurality of loads in accordance with predetermined criteria to limit energy consumed by the loads is connected to the communications link through an interface device operable to process the signals produced by the thermostat in response to instructions furnished by the second controller and to supply the processed signals to the first controller.
摘要翻译：一种分布式环境/负载控制系统，包括恒温器，其可操作以将指示环境受控空间中的参数的感测和期望值的信号提供给可操作以控制条件改变设备以调节参数的第一控制器，所述信号通过通信恒温器和第一控制器之间的连接。可操作以根据预定标准控制多个负载以限制由负载消耗的能量的第二控制器通过接口装置连接到通信链路，接口装置可操作以响应于由恒温器所提供的指令来处理由恒温器产生的信号并且将经处理的信号提供给第一控制器。

4. 发明授权

US5043722A Detector for colliding signals in asynchronous communication 失效
标题翻译：用于异步通信中的信号的检测器
公开(公告)号：US5043722A
公开(公告)日：1991-08-27
申请号：US548435
申请日：1990-07-06
申请人： John R. Aggers , Roger R. Roth
发明人： John R. Aggers , Roger R. Roth
IPC分类号： H04L12/403
CPC分类号： H04L12/413 , H04L12/403
摘要： A communications system has an active master node which transmits request messages in serial bit fashion on a data bus, and a plurality of responder nodes each of which receives the request messages on the data bus and may respond to a request message with a serial bit answer message. The possiblity exists that a plurality of responder nodes may provide concurrent answer messages forming a composite signal which the active master node may not be able to recognize as containing answer messages. A low pass filter is provided in the active master node which provides as its output only those pulses in the composite signal whose length is within a predetermined interval, typically from approximately a tenth to one half of the interval for each bit in the answer messages. A counter receives the low pass filter output and provides a collision signal to the associated master node if more than a preselected number of pulses within the predetermined interval are present. By providing the collision signal only after detecting a plurality of these pulses in the low pass filter output, it is possible to avoid false detection of concurrent answer messages whose presence is simulated by noise on the line.
摘要翻译：通信系统具有主动主节点，其以串行位方式在数据总线上发送请求消息，以及多个应答器节点，每个应答器节点在数据总线上接收请求消息，并且可以对具有串行位回答的请求消息进行响应信息。可能存在多个响应者节点可以提供形成复合信号的并发应答消息，主动主节点可能不能识别为包含应答消息。在主动主节点中提供低通滤波器，其提供其长度在预定间隔内的复合信号中的那些脉冲，通常为应答消息中的每个位的间隔的大约十分之一到一半。如果存在超过预定间隔内的预选数量的脉冲，则计数器接收低通滤波器输出并且向相关联的主节点提供冲突信号。通过仅在低通滤波器输出中检测到多个这些脉冲之后提供冲突信号，可以避免错误地检测出线路上的噪声模拟的并发应答消息。

5. 发明授权

US07669432B2 Evaporator pressure regulator control and diagnostics 有权
标题翻译：蒸发器压力调节器控制和诊断
公开(公告)号：US07669432B2
公开(公告)日：2010-03-02
申请号：US11874506
申请日：2007-10-18
申请人： Albert W. Maier , John R. Aggers , Robert A. Kensinger , Richard P. Vogh, III , Timothy D. Campbell , Scott M. Gelber
发明人： Albert W. Maier , John R. Aggers , Robert A. Kensinger , Richard P. Vogh, III , Timothy D. Campbell , Scott M. Gelber
IPC分类号： F25B41/04 , G05D23/12 , F16K31/02
CPC分类号： F25B41/043 , F25B5/02 , F25B2400/075 , F25B2400/22 , F25B2700/1933 , F25D2700/12
摘要： A method includes cycling an electronic evaporator pressure regulator valve fluidly coupled to a refrigeration circuit to regulate flow through the electronic evaporator pressure regulator valve and sensing a current drawn by the electronic evaporator pressure regulator valve during cycling of the electronic evaporator pressure regulator valve. The method further includes determining a valve condition of the electronic evaporator pressure regulator valve based on the sensing.
摘要翻译：一种方法包括循环流体耦合到制冷回路的电子蒸发器压力调节阀，以调节通过电子蒸发器压力调节阀的流量，并感测在电子蒸发器压力调节阀循环期间由电子蒸发器压力调节阀吸取的电流。该方法还包括基于感测确定电子蒸发器压力调节阀的阀门状态。

6. 发明授权

US07287396B2 Evaporator pressure regulator control and diagnostics 有权
标题翻译：蒸发器压力调节器控制和诊断
公开(公告)号：US07287396B2
公开(公告)日：2007-10-30
申请号：US11081083
申请日：2005-03-15
申请人： Albert W. Maier , John R. Aggers , Robert A. Kensinger , Richard P. Vogh, III , Timothy D. Campbell , Scott M. Gelber
发明人： Albert W. Maier , John R. Aggers , Robert A. Kensinger , Richard P. Vogh, III , Timothy D. Campbell , Scott M. Gelber
IPC分类号： F25B5/00 , F25B41/04
CPC分类号： F25B41/043 , F25B5/02 , F25B2400/075 , F25B2400/22 , F25B2700/1933 , F25D2700/12
摘要： An apparatus for refrigeration system control includes a plurality of circuits, each circuit having at least one refrigeration case and an electronic evaporator pressure regulator in communication with each circuit. Each electronic evaporator pressure regulator controls a temperature of one of the circuits. A sensor in communication with each circuit measures a parameter from the circuit. A controller associated with each electronic evaporator pressure regulator controls the respective electronic evaporator pressure regulator based upon measured parameters from each of the circuits.
摘要翻译：一种用于制冷系统控制的装置包括多个电路，每个电路具有至少一个制冷箱和与每个电路连通的电子蒸发器压力调节器。每个电子蒸发器压力调节器控制其中一个电路的温度。与每个电路通信的传感器测量来自电路的参数。与每个电子蒸发器压力调节器相关联的控制器基于来自每个电路的测量参数来控制相应的电子蒸发器压力调节器。

7. 发明授权

US4894826A Message generating communication apparatus having a message preamble format allowing parts of certain messages to be ignored 失效
标题翻译：消息产生通信装置具有允许某些消息的部分被忽略的消息前同步码格式
公开(公告)号：US4894826A
公开(公告)日：1990-01-16
申请号：US303417
申请日：1989-01-30
申请人： John R. Aggers , Roger R. Roth
发明人： John R. Aggers , Roger R. Roth
IPC分类号： H04J3/16 , H04L29/06
CPC分类号： H04L29/06 , H04J3/16
摘要： A communication system has a first node which transmits on a data bus messages each having a preamble having a predetermined format including a message type and the message length, and a plurality of second nodes receiving messages from the data bus and including elements which can determine that the preamble in each message has the predetermined format. The preamble is particularly useful for allowing the second nodes to quickly detect messages not directed to those nodes of which the elements form a part, allowing the node to ignore the remainder of the message. This allows the individual nodes to exclude the message interpretation for detecting message directed to them, from their processing tasks thereby improving the effective processing speed of the network.

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