Wireless engine monitoring system

• US 7,755,512 B2
• Filed: 05/04/2009
• Issued: 07/13/2010
• Est. Priority Date: 07/23/2003
• Status: Active Grant

• Current Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Original Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Inventors: Ziarno, James J.
• Primary Examiner(s): Swarthout; Brent
• Application Number:
  US12/434,782
• Publication Number:
  US 20090231162A1
• Time in Patent Office: 435 Days
• Field of Search: 340/945, 340/963, 340/971, 701/14, 701/35, 701/3, 701/9
• US Class Current: 340/945
• CPC Class Codes: B64D 2045/0085 Devices for aircraft health monitoring, e.g. monitoring flutter or vibration
• CPC Class Codes: B64D 29/00 Power-plant nacelles, fairings, or cowlings nacelles not otherwise provided for B64C
• CPC Class Codes: B64D 45/00 Aircraft indicators or protectors not otherwise provided for camouflage F41H3/00
• CPC Class Codes: F02C 9/00 Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants controlling air intakes F02C7/057; controlling turbines F01D; controlling compressors F04D27/00; controlling in general G05
• CPC Class Codes: G05B 2219/13 Plc programming
• CPC Class Codes: G05B 2223/06 Remote monitoring
• CPC Class Codes: G05B 23/0213 Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
• CPC Class Codes: G05B 23/0264 Control of logging system, e.g. decision on which data to store; time-stamping measurements
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: H04B 7/18506 Communications with or from aircraft, i.e. aeronautical mobile service
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: Y02T 50/60 Efficient propulsion technologies, e.g. for aircraft

Abstract

A wireless engine monitoring system (WEMS) includes an engine monitoring module that is mounted directly on an aircraft engine and records, stores, encrypts and transmits full flight engine data. The system preferably interfaces to the Full Authority Digital Engine Controller/Engine Control Unit (FADEC/ECU) and can record hundreds of engine parameters with a preferred sampling frequency of about one second. The engine monitoring module is preferably formed as a miniaturized module directly mounted on the aircraft engine within its cowling and has a conformal antenna. The engine monitoring module can also upload data for onboard processing.

Claims

1. A system for providing a record of the performance of an aircraft engine comprising:

an engine monitoring module mounted on the aircraft engine for collecting engine data relating to flight operation of the aircraft engine, the engine monitoring module having an address linked to a serial number of the aircraft engine for tracking the aircraft engine;

a processing unit coupled to said engine monitoring module and comprising a microprocessor for processing said engine data and generating reports relating to said engine data identifying said reports as related to said aircraft engine, said processing unit further comprising a data store memory storing said engine data and said generated reports; and

a transmitter electrically coupled to said processing unit for transmitting at least one of the engine data and the generated reports over a wireless communications signal to a ground-based receiver.

2. The system according to claim 1, wherein said processing unit compresses the received engine data and stores the compressed engine data in said data store memory.

3. The system according to claim 1, and further comprising a Full Authority Digital Engine Controller/Engine Control Unit (FADEC/ECU) operative with said aircraft engine for collecting engine data, wherein said engine monitoring module is electrically connected to said FADEC/ECU for collecting engine data.

4. The system according to claim 1, wherein said transmitter transmits over a wireless communications signal to a ground-based receiver using a cellular communications link.

5. A method for providing a record of the performance of an aircraft engine comprising:

mounting an engine monitoring module on the aircraft engine,

linking an address assigned to the engine monitoring module to a serial number of the aircraft engine for tracking the aircraft engine;

collecting engine data relating to flight operation of the aircraft engine during flight of the aircraft;

storing said engine data in a data store memory;

processing said engine data in a processing unit associated with said engine monitoring module;

generating reports relating to said engine data identifying said reports as related to said aircraft engine; and

transmitting at least one of the engine data and the generated reports over a wireless communications signal to a ground-based receiver.

6. The method according to claim 5, including using a cellular network for transmitting the at least one of the engine data and the generated reports over a wireless communications signal.

7. The method according to claim 5, including using a spread spectrum communications signal for transmitting the at least one of the engine data and the generated reports.

8. The method according to claim 5, including compressing the engine data prior to storing the engine data in said data store memory.

9. A system for providing a record of the performance of an aircraft engine comprising:

an engine monitoring module mounted on the aircraft engine for collecting engine data relating to flight operation of the aircraft engine, the engine monitoring module having an address linked to a serial number of the aircraft engine for tracking the aircraft engine;

a processing unit coupled to said engine monitoring module for processing said engine data and generating reports relating to said engine data identifying said reports as related to said aircraft engine,

a data store memory associated with said processing unit and storing said engine data; and

a transmitter electrically coupled to said processing unit for transmitting at least one of the engine data and the generated reports over a wireless communications signal to a ground-based receiver.

10. A system for providing a record of the performance of an aircraft engine comprising:

an engine monitoring module mounted on the aircraft engine for collecting engine data relating to flight operation of the aircraft engine, the engine monitoring module having an address linked to a serial number of the aircraft engine for tracking the aircraft engine;

a processing unit coupled to said engine monitoring module and comprising a microprocessor for processing said engine data and generating reports relating to said engine data identifying said reports as related to said aircraft engine, said processing unit comprising a data store memory storing said engine data and said generated reports; and

a transceiver electrically coupled to said processing unit for transmitting at least one of the engine data and the generated reports over a wireless communications signal to a ground-based receiver.

11. The system according to claim 10, wherein said transceiver is operative to receive uploaded data.

12. The system according to claim 11, wherein said uploaded data includes algorithms for on-board processing of engine data.

13. A system for providing a record of the performance of an aircraft engine comprising:

an engine monitoring module mounted on the aircraft engine, the engine monitoring module collecting engine data relating to operation of the aircraft engine, the engine monitoring module having an address linked to a serial number of the aircraft engine for tracking the aircraft engine, the engine monitoring module comprising a processing unit for processing said engine data; and

a transmitter electrically coupled to said engine monitoring module, the transmitter operable to transmit the engine data over a wireless communications signal.

14. The system according to claim 13, further comprising a data store memory coupled to said processing unit and storing the collected engine data.

15. The system according to claim 14, wherein said processing unit generates reports relating to said engine data identifying said reports as related to said aircraft engine.

16. The system according to claim 15, wherein said generated reports are transmitted by said transmitter.