摘要:
Apparatuses and methods for use in connection with a Building Automation System (BAS) are disclosed herein. In one embodiment, the present invention comprises an intelligent power node comprising a JAVA-enabled device and serial communication cable that provide a seamless open protocol and aggregation point to broadcast internet protocol communications. In another embodiment, the present invention enables energy monitoring and control of individual ports and outlets. In yet another embodiment, the present invention is a method of configuring and operating fieldbus devices.
摘要:
A flexible graphical extension engine having a function block engine combined with extensions in communications with a wall module bus to make it possible to provide fixed function, configurable function and programmable function devices which implement additional function block behavior, and provide an automated configuration approach for generating configuration files for a programmable wall module. In other words, the engine not only depends on fixed inputs and outputs (I/O's) and fixed features in a control solution, but also may allow for flexible blocks and the ability to change an interface on the fly (i.e., during operation).
摘要:
A system and method for controlling movement of gate of a parking lot provides an access document reading means for reading an access identifier of an access document of customer. The access identifier is transmitted from access control device to a lot control device which consults a database in which access identifier identifies access rights assigned to customer and defining customer's right to pass through gate. Based on access rights, lot control device controls movement of gate to control passage of customer therethrough in a vehicle. Access documents and access rights may be obtained by use of computing devices connected to lot control device by an Internet network. Further, images of parking lot are captured by cameras for security and surveillance purposes and are viewable from computing devices. Telephone communication between customer and an attendant of parking lot are also provided.
摘要:
The present invention includes a system (FIG. 4) for servicing messages between device controller nodes and control applications via a Lon Network, wherein the device controller nodes includes a plurality of network variables for defining parameters of the Lon Network. The system includes a server for servicing the messages from at least one control application, a proprietary communication value for indicating a network variable value from the control applications, and a Lon value for indicating a network variable value exposed on the Lon Network. There is also a method that includes the steps of reading a message from the control application, verifying whether the message is valid, determining the requested function for a specified network variable from the message when the message is valid, executing the requested function for the specified network variable, and sending subscribed reports in response to a change of value of the network variables independently of the foregoing steps (170).
摘要:
A reception interface unit in a transmission system wherein time series data is divided into data groups and a data packet with reproduction specification time data specifying a time at which each data piece in the data groups should be reproduced, added to the data groups is transmitted on a transmission bus in a time division manner. The interface unit has a cycle timer for counting the reference time of the home device based on the reference time on the transmission bus, a unit for extracting the reproduction specification time data in the data groups from a signal received via the transmission bus and storing the reproduction specification time data in a buffer, a reception buffer for inputting and storing the data pieces in the data groups in order and reading out the data pieces in the storage order responsive to a reproduction clock, a match detector for generating a reference clock pulse if the reference time of the home device matches the reproduction specification time, and a PLL circuit being responsive to the reference clock pulse for generating a clock signal which is phase synchronized with the reference clock pulse as the reproduction clock. When the reference time on the transmission bus changes, the data stored in the buffer in the reproduction specification time data extraction unit and the data stored in the reception buffer are all deleted.
摘要:
For a network comprising at least two lines and network users, both a transfer of data and a terminal for energy transfer through the network are realized in that the two lines (1, 2) of the network are formed both for a data transfer among the network users (3, 4, 5, 6) and for energy transfer from a voltage source to the network users (3, 4, 5, 6), in that the data are symmetrically and differentially transferred through the two lines (1, 2), in that a terminal of the voltage source is coupled to the two lines (1, 2), in that the network users (3, 4, 5, 6) are coupled to the other terminal of the voltage source via a different electric connection separated from the network, in that the network users (3, 4, 5, 6) symmetrically couple out the energy transfer via the two lines (1, 2) of the network, and in that the two lines (1, 2) are mutually insulated.
摘要:
An HVAC communication network includes one or more master controllers that communicate with their respective zone controllers by issuing broadcast messages over the network. The broadcast messages are read and analyzed by all zone controllers on the network. Each zone controller is able to determine whether a particular broadcast message is intended for it by noting whether the broadcast message contains a particular identification of its master controller.