Apparatus for controlling a multiplicity of compressors

• US 5,852,795 A
• Filed: 11/22/1996
• Issued: 12/22/1998
• Est. Priority Date: 11/22/1996
• Status: Expired due to Fees

• Current Assignee: New York Gas Group (New England Gas Association)
• Original Assignee: New York Gas Group (New England Gas Association)
• Inventors: Neumann, Scott E., Choroszylow, Ewan
• Primary Examiner(s): Voeltz, Emanuel Todd
• Assistant Examiner(s): Nguyen, Cuong H.
• Application Number:
  US08/754,837
• Time in Patent Office: 760 Days
• Field of Search: 364/138, 364/139, 364/144, 364/180, 364/188, 364/506, 364/509, 364/510, 364/558, 361/681, 395/556, 395/559, 395/500, 395/821, 395/823, 395/834, 395/842, 702/45, 702/47, 702/98, 702/140
• US Class Current: 702/98
• CPC Class Codes: F17C 13/02 Special adaptations of indicating, measuring, or monitoring equipment measuring in general G01
• CPC Class Codes: F17C 2221/033 Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
• CPC Class Codes: F17C 2223/0161 cryogenic, e.g. LNG, GNL, PLNG
• CPC Class Codes: F17C 2223/033 Small pressure, e.g. for liquefied gas
• CPC Class Codes: F17C 2227/046 by even emptying or filling
• CPC Class Codes: F17C 2250/032 using computers
• CPC Class Codes: F17C 2250/0426 Volume
• CPC Class Codes: F17C 2250/043 Pressure
• CPC Class Codes: F17C 2250/0636 Flow or movement of content
• CPC Class Codes: H05K 7/1467 PLC mounted in a cabinet or chassis
• CPC Class Codes: H05K 7/1481 User interface, e.g. status displays; Programming interface, e.g. connector for computer programming; Monitoring

Abstract

A controller comprised of a high speed central processing unit, at least about 32 analog input channels operatively connected to the central processing unit, at least about 48 digital input channels operatively connected to the central processing unit, at least about 32 digital output channels operatively connected to the central processing unit, at least 20 control input channels connected to the central processing unit, and electroluminescent display means for displaying graphical information connected to the central processing unit.

Claims

1. A controller especially adapted for controlling the flow of fluid in a multiplicity of compressors comprised of a central processing unit, at least about 32 analog input channels operatively connected to the central processing unit, at least about 48 digital input channels operatively connected to the central processing unit, at least about 32 digital output channels operatively connected to the central processing unit, at least 20 control input channels connected to the central processing unit, and electroluminescent display means for displaying graphical information connected to the central processing unit.

2. The controller as recited in claim 1, wherein said controller is disposed within a weatherproof enclosure.

3. The controller as recited in claim 1, wherein said electroluminescent display means is VGA feature connector compatible.

4. The controller as recited in claim 1, wherein said electroluminescent display means has a resolution of at least about 640×

480 pixels.

5. The controller as recited in claim 1, wherein said controller comprises at least about 64 analog input channels operatively connected to said central processing unit.

6. The controller as recited in claim 1, wherein said controller comprises at least about 128 analog input channels operatively connected to said central processing unit.

7. The controller as recited in claim 1, wherein said controller is comprised of a multiplexing assembly.

8. The controller as recited in claim 1, wherein said central processing unit contains at least about 2 megabytes of dynamic random access memory.

9. The controller as recited in claim 1, wherein said central processing unit contains an on board, solid state disk array.

10. The controller as recited in claim 1, wherein said central processing unit contains an on board PCMCIA slot.

11. The controller as recited in claim 1, wherein said central processing unit contains at least two serial ports.

12. The controller as recited in claim 1, wherein said central processing unit contains at least one parallel port.

13. The controller as recited in claim 1, wherein said central processing unit contains a keyboard controller.

14. The controller as recited in claim 1, wherein said central processing unit has an on board VGA compatible video controller.

15. The controller as recited in claim 1, wherein said central processing unit is comprised of fixed and floppy disk controllers.

16. The controller as recited in claim 1, wherein said central processing unit is comprised of an on board real time clock.

17. The controller as recited in claim 1, wherein said central processing unit is comprised of a watchdog timer.

18. A process for filling at least three storage vessels, comprising the steps of sequentially:

(a) connecting at least three storage vessels to the controller of claim 1,

(b) reading the pressures in each of said three storage vessels,

(c) simultaneously delivering gas to each of said storage vessels,

(d) determining the volume of gas present in each of said storage vessels, and

(f) thereafter simultaneously delivering gas to each of said three storage vessels.