One time programmable switched-output controller

• US 5,450,334 A
• Filed: 11/01/1993
• Issued: 09/12/1995
• Est. Priority Date: 11/01/1993
• Status: Expired due to Term

• Current Assignee: Pulizzi Engineering, Inc. (Eaton Corporation PLC.)
• Original Assignee: Pulizzi Engineering, Inc. (Eaton Corporation PLC.)
• Inventors: Rester, Marshall D., Pulizzi, Peter S.
• Primary Examiner(s): Cosimano, Edward R.
• Application Number:
  US08/146,796
• Time in Patent Office: 680 Days
• Field of Search: 307/38, 307/40, 307/41, 307/112, 364/141, 364/492
• US Class Current: 700/295
• CPC Class Codes: H01H 47/001 Functional circuits, e.g. logic, sequencing, interlocking circuits
• CPC Class Codes: H02J 2310/60 Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/14 Protecting elements, switches, relays or circuit breakers
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving

Abstract

A one time programmable (OTP) electronic switched-output controller apparatus comprises a plurality of switched-output relays which may be power relays, signal voltage relays, dry switching relays or any combination thereof. A power section receives AC line power and provides at least one internal operating DC voltage and provides line AC power to any power relays and to the related power outputs when the relay are actuated. An A-D converter provides DC voltage for internal operation and to any DC voltage relays. A one time programmable microcontroller, which has outputs connected to the relay coils, is programmed before installation in the switched-output controller apparatus to cause actuation of the relay coils in accordance with a preestablished operating protocol. The apparatus is shown connected for receiving RS232 signals and has an internal modem for receiving external signals over a telephone line. A relay enables switching between the RS232 and modem inputs. Provision is also made to receive other external signals, for example, from temperature or pressure sensing devices. A corresponding method of manufacturing the OTP switched-output controller apparatus is disclosed.

Claims

1. A one time programmable switched-output controller apparatus which comprises:

a. a plurality of relays for providing a plurality of controlled switched outputs, said relays being selected from the group consisting of power relays, signal switching relays, dry contact closing relays and combinations thereof, each of said relays having a corresponding relay operating coil;

b. a power section configured for receiving AC line power and for providing internal operating DC voltage and connected for providing line AC power to any power relays and thereby to corresponding outputs when the corresponding power relay coils are actuated, and for providing DC voltage to any signal switching relays and thereby to corresponding outputs when the corresponding switching signal relay coils are activated; and

c. a microcontroller connected for receiving said at least one operating DC voltage and having outputs connected to said relay coils, said microcontroller containing a one time programmable memory which is programmed to perform the specific tasks of actuating one or more of said relay coils in accordance with a preestablished protocol for operation of said relays.

2. The one time programmable switched-output controller apparatus as claimed in claim 1, including:

a. a circuit connected for conditioning signals from an RS232 connection and for providing said conditioned RS232 signals to said microcontroller;

b. a modem connected for providing telephone line transmitted signals to said microcontroller; and

c. a microcontroller-controlled switch connected for enabling either the RS232 conditioned signals or said telephone line transmitted signals to be received by the microcontroller.

3. The one time programmable switched-output controller apparatus as claimed in claim 1, including a circuit connected for conditioning signals from an RS232 connection and for providing said conditioned RS232 signals to said microcontroller, the microcontroller being one time programmed to be responsive to said reconditioned RS232 signals to activate one or more of said relay coils in accordance with said preestablished operating protocol which requires said RS232 signals for operation of the apparatus.

4. The one time programmable switched-output controller apparatus as claimed in claim 1, wherein said microcontroller is connected for receiving operating signals from an external source, the microcontroller being programmed to be responsive to said external operating signals to activate one or more of said relay coils in accordance with said preestablished operating protocol which requires said external operating signals for actuation of one or more of said relay coils.

5. The programmable electronic power controller apparatus as claimed in claim 1, including a modem connected for providing telephone line transmitted signals to said microcontroller, the microcontroller being one time programmed to be responsive to said telephone line transmitted signals to activate one or more of said relay coils in accordance with said preestablished operating protocol which requires said telephone line transmitted signals for operation of the apparatus.

6. The one time programmable switched-output controller apparatus as claimed in claim 5, wherein said microcontroller is programmed as a requirement of said preestablished operating protocol to provide output signals to the modem for transmitting over a telephone line.

7. The one time programmable switched-output controller apparatus as claimed in claim 1, including a plurality of panel lights and wherein said microcontroller is programmed to cause the operation of said panel lights in accordance with said preestablished operating protocol as well as to cause activation of said relay coils.

8. The one time programmable switched-output controller apparatus as claimed in claim 7, wherein each of said relays has an associated panel light that is activated by said microcontroller when the relay coil of the associated relay is activated.

9. The one time programmable switched-output controller apparatus as claimed in claim 2, wherein said microcontroller is programmed as a requirement of said preestablished operating protocol to provide output signals to the RS232 connection.

10. The one time programmable switched-output controller apparatus as claimed in claim 9, wherein said external signal corresponds to a level of an external temperature to be monitored.

11. The one time programmable switched-output controller apparatus as claimed in claim 9, wherein said external signal corresponds to a level of an external pressure to be monitored.

12. A method for constructing a one time programmable switched-output controller apparatus, said method comprising the steps of:

a. connecting a power supply for receiving AC line power from an external source and for providing a DC voltage therefrom;

b. selecting a plurality of output relays consisting of power relays, signal switching relays, dry contact closing relays or combinations thereof;

c. connecting any of said selected power relays to said power supply for receiving AC line power therefrom and for providing said AC line power to corresponding outlets when said power relays are activated;

d. connecting any of said selected signal switching relays to said power supply for receiving DC voltage therefrom and for providing said DC voltage to corresponding outlets when said signal switching relays are activated;

e. connecting a microcontroller, which contains a one time programmable memory, for receiving said at least one operating DC voltage and for controlling the actuating of relay coil associated with said selected relays; and

f. programming said one time programmable memory to perform the specific task of actuating selected ones of said relay coils in accordance with a preestablished protocol for operation of said relay coils.

13. The method for constructing a one time programmable switched-output controller apparatus as claimed in claim 12, including the step of connecting a circuit for receiving and conditioning signals from an R232 connection and for providing said conditioned RS232 signals to said microcontroller, and programming the microcontroller to be responsive to said reconditioned RS232 signals for activating one or more of said relay coils in accordance with said preestablished operating protocol which requires said RS232 signals to enable actuation of one or more of said relay coils.

14. The method for constructing a one time programmable switched-output controller apparatus as claimed in claim 12, including the step of connecting a modem for receiving telephone line transmitted signals to said microcontroller, and programming the microcontroller to be responsive to said telephone line transmitted signals for activating one or more of said relay coils in accordance with said preestablished operating protocol which requires said telephone line transmitted signals to enable actuation of one or more of said relay coils.

15. The method for constructing a one time programmable switched-output controller apparatus as claimed in claim 12, including the step of connecting a plurality of panel lights to said microcontroller and programming the microcontroller so that whenever one of the relay coils is activated by the microcontroller a corresponding one of the panel lights is activated.

16. The method for constructing a one time programmable switched-output controller apparatus as claimed in claim 12, wherein the step of one time programming said microcontroller includes physically altering portions of said microcontroller before installing the microcontroller in the switched-output controller apparatus.

17. The method for constructing a one time programmable switched-output controller apparatus as claimed in claim 16, wherein the step of physically altering portions of said microcontroller includes using a computer to determine the portions of said microcontroller to be altered.

18. The method for constructing a one time programmable switched-output controller apparatus as claimed in claim 12, including connecting the microcontroller for receiving operating signals from an external source, and programming the microcontroller to be responsive to said external operating signals for activating one or more of said relay coils in accordance with said preestablished operating protocol which requires said external operating signals to enable actuation of one or more of said relay coils.

19. The method for constructing a one time programmable switched-output controller apparatus as claimed in claim 18, wherein said external signal corresponds to an external temperature level being monitored.

20. The method for constructing a one time programmable switched-output controller apparatus as claimed in claim 18, wherein said external signal corresponds to an external pressure level being monitored.