Input device for building automation

• US 20050049726A1
• Filed: 08/27/2004
• Published: 03/03/2005
• Est. Priority Date: 08/29/2003
• Status: Abandoned Application

• Current Assignee: Google Inc. (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Hesse, Scott, Adamson, Hugh P.
• Application Number:
  US10/929,077
• Publication Number:
  US 20050049726A1
• Time in Patent Office: Days
• US Class Current: 700/19
• CPC Class Codes: G05B 15/02 electric

Abstract

Implementations of an input device for building automation systems are described and claimed herein. An exemplary implementation of an input device includes an input sensing circuit and a processor operatively associated with computer readable storage. Computer readable program code is stored on the computer readable storage and executable by the processor to receive input signals identifying input received by the input sensing circuit and categorize the input into data gathering input and event input.

Claims

1. An input device for a building automation system comprising:

an input sensing circuit;

a processor operatively associated with computer readable storage;

computer readable program code stored on the computer readable storage and executable by the processor to receive input signals identifying input received by the input sensing circuit and categorize the input into data gathering input and event input.

2. The input device of claim 1, wherein the input sensing circuit includes a plurality of channels for receiving input signals.

3. The input device of claim 1, further comprising test circuitry to issue a signal indicating if the input device is functioning properly without having to physically locate the input device.

4. The input device of claim 1, wherein the input sensing circuit includes an oscillator circuit for receiving input signals at a predetermined frequency.

5. The input device of claim 1, wherein the input sensing circuit includes a transformer circuit for common mode noise rejection.

6. The input device of claim 1, wherein the input sensing circuit includes a metal oxide varistor circuit for protection against electrical transients.

7. The input device of claim 1, further comprising a connection to a CAN bus network in the building automation system.

8. The input device of claim 1, further comprising a watchdog circuit operatively associated the processor for self-diagnostics.

9. The input device of claim 1, further comprising a power monitor operatively associated the processor for self-diagnostics.

10. The input device of claim 1, further comprising a bus tap for coupling the processor to a building automation network.

11. The input device of claim 1, further comprising a status indicator.

12. A method for responding to events in a building automation system comprising:

categorizing input signals into data gathering input and event input;

generating data signals identifying the data gathering input;

issuing the data signals to a data collection repository in the building automation system for data analysis;

generating event signals for the event input; and

issuing the response signals to at least one automation device in the building automation system for responding to an event.

13. The method of claim 12 further comprising receiving the input signals from a plurality of sensing devices.

14. The method of claim 12 further comprising receiving the input signals from a plurality of sensing devices on a CAN bus.

15. The method of claim 12 further comprising rejecting common mode noise from the input signals.

16. The method of claim 12 further comprising generating event signals based on a combination of event input.

17. The method of claim 12 further comprising executing scripts at an input device to categorize the input signals and generate the data signals and event signals.

18. An input device for a building automation system comprising:

input means for generating input;

processing means for receiving the input;

processing means for categorizing the input into data gathering input and event input.

19. The input device of claim 18, further comprising processing means for generating event signals in response to receiving event input.

20. The input device of claim 18, further comprising processing means for generating data signals in response to receiving data gathering input.