Wireless data acquisition system

• US 20070083294A1
• Filed: 09/14/2006
• Published: 04/12/2007
• Est. Priority Date: 09/15/2005
• Status: Abandoned Application

• Current Assignee: Veris Industries LLC (Schneider Electric SE)
• Original Assignee: Veris Industries LLC (Schneider Electric SE)
• Inventors: Bruno, David
• Application Number:
  US11/521,958
• Publication Number:
  US 20070083294A1
• Time in Patent Office: Days
• US Class Current: 700/295
• CPC Class Codes: G05D 23/1932 to control the temperature of a plurality of spaces
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

Data is acquired by a data acquisition unit and wirelessly transmitted to a data transfer device that wirelessly retransmits the data to a data processing device.

Claims

1. A data acquisition apparatus for a data processing system, said data acquisition apparatus comprising:

(a) a sensor for detecting a measurement parameter;

(b) a memory storing a measurement instruction, a storage instruction and a transmission instruction;

(c) a logic unit quantifying a value of said measurement parameter detected by said sensor according to said measurement instruction and storing said value of said measurement parameter in said memory according to said storage instruction; and

(d) a radio frequency transmitter to transmit said value of said measurement parameter to said data processing system in response to execution of said transmission instruction by said logic unit.

2. The data acquisition apparatus of claim 1 further comprises a clock generating a time datum associated with said with said value of said measurement parameter by said logic unit according to a time stamp instruction.

3. The data acquisition apparatus of claim 1 wherein said measurement parameter comprises a state of a device and said measurement instruction causes said logic unit to record a change in said state detected by said sensor.

4. The data acquisition apparatus of claim 1 wherein said radio frequency transmitter transmits said value of said measurement parameter by amplitude modulation.

5. The data acquisition apparatus of claim 1 wherein logic unit associates a transaction identification with a transmission to said data processing system.

12. The data acquisition system of claim 5 wherein said transmitter transmits said value of said measurement parameter with amplitude modulation.

6. A system for acquiring and communicating data to a data processing system comprising:

(a) a data acquisition unit including;

(i) a sensor for detecting a measurement parameter;

(ii) a memory storing a measurement instruction, a storage instruction, and a transmission instruction;

(iii) a logic unit quantifying a value of said measurement parameter detected by said sensor according to said measurement instruction and storing said value of said measurement parameter in said memory according to said storage instruction; and

(iv) a transmitter to transmit said value of said measurement parameter in response to execution of said transmission instruction by said logic unit; and

(b) a data transfer unit including;

(i) a receiver to receive said transmission of said value of said measurement parameter; and

(ii) a network transceiver to retransmit said measurement parameter value to data processing device.

7. The data acquisition apparatus of claim 6 further comprises a clock generating a time datum associated with said with said value of said measurement parameter by said logic unit according to a time stamp instruction.

8. The data acquisition apparatus of claim 6 wherein said measurement parameter comprises a state of a device and said measurement instruction causes said logic unit to record a change in said state detected by said sensor.

9. The data acquisition system of claim 6 wherein said transmitter of said data acquisition unit transmits said measurement parameter value at a different frequency than a transmission frequency used by said transceiver to transmit said measurement parameter value to said data processing device.

10. The data acquisition system of claim 9 wherein said transmitter transmits said measurement parameter value at a frequency of 418 megahertz.

11. The data acquisition system of claim 6 wherein said transmitter of said data acquisition device transmits said measurement parameter with a modulation method that differs from the modulation method of said transceiver.

13. The data acquisition system of claim 11 wherein said transmitter transmits said value of said measurement parameter with on-off shift keying modulation.

14. The data acquisition system of claim 6 wherein said data transfer unit further comprises a data transfer logic unit and a data transfer unit memory, said data transfer logic unit storing values of measurement parameters included in a plurality of transmissions in said data transfer memory.

15. The data acquisition system of claim 14 wherein a plurality of measurement parameters stored in said data transfer unit memory are transmitted by said network transceiver in a single transmission to said data processing system.

16. The data acquisition system of claim 6 wherein said data transfer unit further comprises a data transfer logic unit and a data transfer unit memory, said data transfer logic unit transmitting a notification to said data processing unit if a transmission including a data acquisition unit identification stored in said data transfer memory is not received in accordance with a transmission schedule stored in said data acquisition unit memory.

17. The data acquisition system of claim 16 wherein said data transfer logic unit causes said network transceiver to transmit a notification to said data processing unit if a signal strength for a transmission from a data acquisition unit is not at least equal to a minimum signal strength.

18. The data acquisition system of claim 6 wherein said data transfer unit further comprises a data transfer logic unit and a data transfer unit memory, said data transfer logic unit transmitting a notification to said data processing unit if a transaction number included in a transmission from a data acquisition unit is incremental to a transaction number stored in said data transfer unit memory.

19. A method of acquiring data for a data processing system, said method comprising the steps of:

(a) quantifying a value of a measurement parameter;

(b) wirelessly transmitting said value of said measurement parameter to a data transfer unit; and

(c) wirelessly retransmitting said value of said measurement parameter to a data processing device.

20. The method of acquiring data of claim 19 wherein said wireless transmission of said value of said measurement parameter to a data transfer unit is performed by amplitude modulation.