Programmable central intelligence controller and distributed intelligence network for analog/digital control systems

• US 5,862,401 A
• Filed: 06/27/1997
• Issued: 01/19/1999
• Est. Priority Date: 10/11/1994
• Status: Expired due to Term

• Current Assignee: Harman International Industries Incorporated (Samsung Group)
• Original Assignee: Crown International Holdings, Inc. (Crown Holdings Incorporated)
• Inventors: Barclay, Clayton C. Jr.
• Primary Examiner(s): An, Meng-Ai T.
• Assistant Examiner(s): Lefkowitz, Sumati
• Application Number:
  US08/883,869
• Time in Patent Office: 571 Days
• Field of Search: 395/821, 395/822, 395/882
• US Class Current: 710/1
• CPC Class Codes: G05B 19/0421 Multiprocessor system
• CPC Class Codes: G05B 2219/2225 Communication, CPU accesses own I-O and next CPU over dual port memory
• CPC Class Codes: G05B 2219/25431 Dual Port memory

Abstract

The present invention involves a programmable microprocessor based controller having the capacity to store multiple operational instruction sets for independently controlling system components. The invention further involves a distributed intelligence network of such programmable controllers having the capability to interface with one another, Host computers, and system control components to provide system-wide automation for simultaneously monitoring and controlling video, audio, and electro-mechanically operated equipment. The programmable controller accepts analog and digital inputs and provides a wide range of user defined control functionality through its analog and digital outputs and its many external connections. The controller can support one and possibly two communication buses, depending upon the application, upon which a plurality of system components may be connected to each. Automatic control system applications include, but are not limited to: concert sound systems, stadium sound systems, theme park automation, video-conferencing, etc. The invention further involves firmware for implementing smooth output limiting, automatic standby, short detection, enhanced ODEP conservation, and interrupt driven reporting.

Claims

1. An apparatus for controlling a plurality of electronically controllable devices, said apparatus including:

first and second independent processor, each of said first and second independent processors including a set of instructions for generating and sending control signals to a plurality of electronically controllable devices, each of said processors including a plurality of inputs;

one memory accessible by both said first and second independent processors; and

dataframe information stored in said memory, said dataframe information accessible by said first and second independent processors, said first and second independent processors generating and sending said control signals according to said dataframe information, at least one of said first and second processors being adapted to prioritize said dataframe information in accordance with a predetermined condition.

2. The apparatus of claim 1 wherein one of said first and second processor means includes communication means for receiving dataframe information and storing dataframe information into said memory.

3. The apparatus of claim 1 wherein one of said first and second processor means includes address means for storing a system address.

4. The apparatus of claim 1 wherein said dataframe information includes device definition information and operating instructions for said first and second processor means.

5. The apparatus of claim 1 wherein one of said first and second processor means includes a plurality of outputs for connecting to a plurality of electronically controllable devices.

6. The apparatus of claim 1 wherein one of said first and second processor means includes bus means for communicating with a plurality of electronically controllable devices.

7. The apparatus of claim 1 wherein one of said first and second processor means includes phantom power means for balancing a corresponding one of said plurality of inputs.

8. A method of operating a plurality of electronically controllable devices, said method comprising the steps of:

providing a drone for generating and sending control signals to the plurality of electronically controllable devices, the drone including two processors and a common memory, each processor including a set of instructions for generating and sending the control signals;

defining a plurality of dataframes on a computer, said dataframes including device definition information and operating instructions for the plurality of electronically controllable devices;

sending said dataframes from the computer to the drone; and

operating the drone to send control signals to the plurality of electronically controllable devices according to said dataframes, the two processors being adapted to prioritize at least some of said dataframes in accordance with a predetermined condition.

9. The method of claim 8 wherein said defining step includes using an object oriented system and a graphic plate.

10. The method of claim 8 wherein said defining step includes using predetermined sub-blocks representing predefined device definition information.

11. The method of claim 8 wherein said sending step includes storing the dataframe in memory of the drone.

12. The method of claim 8 wherein said operating step includes separately controlling two networks, each of said networks including a plurality of electronically controllable devices.

13. The method of claim 8 wherein said operating step includes the drone transmitting control signals between a host computer and a network including a plurality of electronically controllable devices.

14. The method of claim 13 wherein said drone providing step includes providing a user override switch, and said operating step further includes said drone generating and sending control signals in response to an activation of said user override switch.

15. The method of claim 8 wherein said drone providing step includes providing a potentiometer attached to the drone, and said operating step includes the drone generating control signals according to the state of the potentiometer.

16. A system for controlling a plurality of electronically controllable devices, said system comprising:

a computer including a display and data entry unit for allowing user input of dataframe information;

a Drone including memory for storing said dataframe information, said Drone including two processors having access to said memory, each said processor including a set of instructions for generating and sending control signals for the electronically controllable devices according to said dataframe information, said two processors being adapted to prioritize said dataframe information in accordance with a predetermined condition.

17. The system of claim 16 wherein said Drone includes address means for storing a system address.

18. The system of claim 16 wherein said dataframe information includes device definition information and operating instructions for said Drone.

19. The system of claim 16 further comprising bus zone means for sending messages to said Drone and the plurality of electronically controllable devices and interface means for sending control instructions from said computer to said bus zone means, said bus zone means connecting said Drone and said interface means.

20. The system of claim 16 further comprising first and second bus zone means connected to said Drone, said first and second bus zone means for transmitting control signals from said Drone to the plurality of electronically controllable devices.

21. The system of claim 16 further comprising a second computer, a second Drone, a network connecting said computer and said second computer, a first bus zone means connecting said Drone and said second Drone, and a respective second bus zone means for transmitting control signals from a respective Drone to the plurality of electronically controllable devices.