Abstract: In a Graphical Programming System, Users may develop algorithmic programs for Controllers or Controller Assemblies utilizes Programming Tools located on a Central Server. Users access the Central Server utilizing a Client connected by the Internet, an Intranet, or a Local Area Network (“LAN”). A programming Project resides on the Central Server but is displayed on the Client, allowing the User to modify the project from the Client. Actions are transmitted as XML, or similar, files which are processed by the Programming Tools. Multiple Users may access the Project simultaneously and a Project may be temporarily interrupted, only to be re-initiated from any Client connected to the Central Server. Additionally, the Graphical Programming System may be utilized to simulate real-world processes. Once a Project is completed, respective machine code may be transmitted to Controllers or Controller Assemblies connected to the Central Server.

Abstract: In an Internet Based Distributed Control System, communication between one or more Clients and one or more controllers is managed by an Internet Hub. A small, inexpensive Web Server reduces the hardware and software resources required to remotely manage controllers through the Internet. One or more Internet Hubs maintain control of the human-machine interface of the system's controllers, increasing security and reducing system cost. Controllers only accept data packets from authorized Internet Hubs and send regular status update information to those Hubs. If alarms are generated, the system is capable of generating and transmitting human readable messages or alarms via e-mail, fax, SMS, or telephone. Controllers are grouped into Local Control Systems in either Peer-to-Peer networks or Master-Slave configurations.

Abstract: Multiple AECS sensors are attached to workstations or personal computers. A Local Area Network (“LAN”) connects the computers, and, by extension, the AECS sensors to system controllers. The system controllers direct the behavior of HVAC equipment such as variable air volume (“VAV”) boxes, fans, heaters, and air conditioners. An Energy Management Server (“EMS”) is utilized to gather information regarding current utility rates and weather forecasts. Individual users may request environmental set-points using application software residing on the computer. A composite set-point may be generated using a weighted average algorithmic calculation. Requests from disparate users may be given varying weight in determining the composite set-point.

Abstract: In an Internet Based Distributed Control System, communication between one or more Clients and one or more controllers is managed by an Internet Hub. A small, inexpensive Web Server reduces the hardware and software resources required to remotely manage controllers through the Internet. One or more Internet Hubs maintain control of the human-machine interface of the system's controllers, increasing security and reducing system cost. Controllers only accept data packets from authorized Internet Hubs and send regular status update information to those Hubs. If alarms are generated, the system is capable of generating and transmitting human readable messages or alarms via e-mail, fax, SMS, or telephone. Controllers are grouped into Local Control Systems in either Peer-to-Peer networks or Master-Slave configurations.