Gas cylinder monitor and control system

• US 4,866,594 A
• Filed: 02/04/1988
• Issued: 09/12/1989
• Est. Priority Date: 02/12/1987
• Status: Expired due to Fees

• Current Assignee: Zarlink Semiconductor Inc. (Microchip Technology Incorporated)
• Original Assignee: Zarlink Semiconductor Inc. (Microchip Technology Incorporated)
• Inventors: Lacasse, Claude, David, Guy, Metivier, Christian, Veillette, Luc
• Primary Examiner(s): RUGGIERO, JOSEPH F
• Application Number:
  US07/152,484
• Time in Patent Office: 586 Days
• Field of Search: 364/138, 364/139, 364/131-136, 364/184, 364/185, 364/505, 364/506, 364/550, 364/551.01, 364/551.02, 364/152, 340/825.06, 340/825.07, 340/825.16, 340/825.17, 340/825.22, 340/825.36, 340/825.37, 340/825.44, 340/825.45, 340/825.49 , 340/870.09, 340/506
• US Class Current: 700/9
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05B 2219/2642 Domotique, domestic, home control, automation, smart house
• CPC Class Codes: G05B 9/02 electric

Abstract

A system for monitoring and controlling distributed functions within a building, such as the pressure and temperature of gases stored within cylinders. A plurality of modules are located at strategic points within the building for performing specific allocated functions in relation to monitoring and controlling the status of the gas cylinders. A first type of module detects dangerous conditions within the gas cylinders and generates and displays alarm signals in response thereto. A second type of module displays the alarm signals at a location remote from the gas cylinders and transmits command signals for remote shut off of a predetermined one or more of the gas cylinders. A central module interconnects each of the first and second modules and controls signal transmission therebetween. A communication module is connected to the central module for transmitting alarm signals to an operator remote from the system in order that the operator may become apprised of the status of the gas cylinders and take any necessary action.

Claims

1. A system for monitoring and controlling distributed functions within a building, comprised of a first plurality of distributed modules for generating status signals corresponding to the status of one or more of said functions and including means for controlling said functions, a second plurality of modules for remote displaying of said status signals, including means for generating remote command signals, and a central module for receiving said status signals from one or more of said first plurality of modules and transmitting said status signals for display at each of said plurality of second modules and receiving said remote command signals from one or more of said second plurality of modules and transmitting said command signals to said means for controlling included within a predetermined one or more of said first modules, whereby remote monitoring and control of distributed functions within said building is effected.

2. A system as defined in claim 1, further including communication means for transmitting said status signals to an operator remote from the system such that the operator may become apprised of the status of said one or more functions and initiate generation of said remote command signals.

3. A system as defined in claim 2, wherein said communication means is comprised of a remote paging system connected to said central module.

4. A system as defined in claim 2, wherein said communication system is selected from the group consisting of a PACX, PABX, printer and pager system.

5. A system as defined in claim 1, for use in a building in which toxic gases are used, said first plurality of modules being connected to storage means for said gases, said status signals being indicative of dangerous conditions detected at said storage means, said means for controlling being comprised of apparatus for providing emergency shut off of said storage means, said command signals being adapted to effect said emergency s hut off, and said means for displaying said status signals being one or both of audio or visual alarm indicators.

6. A system as defined in claim 1, wherein at least one of said first plurality of modules is adapted for connection to one or more toxic substance containers, and is further comprised of:

(a) valve means for shutting said one or more containers in order to prevent the flow of toxic substances therefrom,

(b) means for detecting pressure within said containers above a first predetermined level and generating a first one of said status signals in response thereto,

(c) means for detecting pressure within said containers below a second predetermined level and generating a second one of said status signals in response thereto, and

(d) means for receiving one or more of said command signals from said central module and actuating said valve means in response thereto, to effect remote shut off of said one or more containers.

7. A system as defined in claim 1, wherein at least one of said second plurality of modules is located at a strategic location within said building, and is further comprised of:

(a) means for receiving one or more of said status signals from said central module and generating visual and audio alarm signals in response thereto,

(b) first switch means for initiating generation of a first one of said command signals for remote control of a predetermined one of said distributed functions in response to being actuated, and

(c) second switch means for initiating generation of a second one of said command signals for remote control of a predetermined plurality of said distributed functions.

8. A system as defined in claim 1, wherein at least one of said second plurality of modules is located at a guard office of said building, and further comprises means for displaying the location within the building of each of said first plurality of modules and identifying a predetermined one or more of said first modules via said means for displaying in the event of generation of one or more status signals by said predetermined one or more first modules, and switch means for initiating generation of an emergency command signal for remote control of all of said distributed functions simultaneously.

9. A system as defined in claim 1, further including an additional plurality of modules located within main corridors of said building, each being comprised of a switch, and means for generating a predetermined command signal for remote control of a predetermined plurality of said distributed functions in response to actuation of said switch.

10. A system as defined in claim 1, wherein said central module is further comprised of a microprocessor connected to a peripheral adapter and a communication module, said microprocessor being adapted to execute a program for controlling said peripheral adapter to receive and transmit said status and command signals between said first and second plurality of modules, and said communication module being adapted to further transmit said status signals to an operator remote from the system such that the operator may become apprised of the status of said one or more functions and take appropriate action.

17. A system as defined in claim 1, wherein at least one of said first plurality of modules is adapted for connection to one or more toxic substance containers, and is further comprised of:

(a) valve means for shutting said one or more containers in order to prevent the flow of toxic substances therefrom,

(b) means for detecting temperature within said containers above a first predetermined level and generating a first one of said status signals in response thereto, and

(c) means for receiving one or more of said command signals from said central module and actuating said valve means in response thereto, to effect remote shut off of said one or more containers.

18. A system as defined in claim 1, wherein at least one of said first plurality of modules is adapted for connection to one or more toxic substance containers, and is further comprised of,

(a) valve means for shutting said one or more containers in order to prevent the flow of toxic substances therefrom,

(b) means for detecting the flow rate of substances from said containers above a first predetermined level and generating a first one of said status signals in response thereto, and

(c) means for receiving one or more of said command signals from said central module and actuating said valve means in response thereto, to effect remote shut off of said one or more containers.

11. A system for monitoring and controlling distributed functions within a building in which toxic gases are used, comprised of:

(a) a first plurality of modules connected to storage means containing said gases, for effecting emergency shut off of said storage means, and for detecting dangerous conditions at said storage means and generating alarm signals in response thereto,

(b) a second plurality of modules located at strategic locations within said building, for receiving and displaying alarm signals remote from said storage means, and including means for generating command signals for causing remote shut off of a predetermined one or more of said storage means,

(c) a third plurality of modules located within main corridors of said building, for generating said command signals for causing remote shut off of a predetermined one or more of said storage means,

(d) a further module located at a security office of said building, for displaying the location of each of said first plurality of modules, and in the event of generation of alarm signals by a predetermined one or more of said first modules, identifying the location of said predetermined first modules, and further including means for generating a further command signal for causing remote shut off of all of said storage means, and

(e) a central module interconnecting said first, second, third and further modules, for translating said alarm signals generated by said first modules to said second modules, and translating said command signals generated by said second, third and further modules to said first modules.

12. A system as defined in claim 11, further including communication means connected to said central module, for transmitting said alarm signals to an operator remote from the system such that the operator may become apprised of said dangerous conditions and take any necessary action in response thereto.

13. A system as defined in claim 12, further including a printer connected to said central module, for generating a hard copy record of all alarm and command signal translations through said central module.

14. A system as defined in claim 12, wherein said communication means is comprised of a PABX.

15. A system as defined in claim 12, wherein said communication means is comprised of a PACX.

16. A system as defined in claim 12, wherein said communication means is comprised of a radio paging system.