Apparatus and method for real-time caution and warning and system health management

• US 20040205700A1
• Filed: 04/11/2003
• Published: 10/14/2004
• Est. Priority Date: 04/11/2003
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Wang, Robert, Leu, Jenson H., Rahmani, Shahram
• Granted Patent: US 7,237,223 B2
• Time in Patent Office: Days
• US Class Current: 717/106
• CPC Class Codes: G06F 9/44 Arrangements for executing specific programs

Abstract

Methods and systems consistent with the present invention include developing a real-time caution and warning (CW) and system health management (HM) software, having an architecture that partitions the application software into two major components: a) a Bytecode, which is an organized collection of CW and/or HM data objects that defines the components and attributes of that particular application function within the given system, and b) a software entity, called the Virtual Engine (VE), which is executed within an embedded system, which takes as its input the “Bytecode” that it manipulates according to a predefined instruction set. The system user or designer can define, design, test, and validate the system using a user-friendly tool. The VE is intended to be reusable within the CW and system HM application domain.

Claims

1. A method of creating a predetermined application comprising:

receiving an input of user-defined data objects and attributes of said data objects into a database;

formatting said data objects and generating a Bytecode that defines components and attributes of the application;

interpreting said Bytecode using simulated data and subsystems information; and

at least one of outputting and displaying attributes that drive one of a simulated output device and display.

2. The method of claim 1 further comprising receiving an input of system requirements and domain knowledge prior to said receiving step.

3. The method of claim 1 wherein said database is a caution warning Logic database.

4. The method of claim 1 further comprising invoking an object compiler to obtain an intermediate representation of said data objects, prior to said formatting step.

5. The method of claim 4 wherein said formatting step formats said intermediate representation of said data objects to obtain said Bytecode.

6. The method of claim 1 further comprising generating at least one of system Requirements, database statistical Reports and Test Cases in addition to said Bytecode.

7. The method of claim 1 wherein said interpretation step is performed by a Virtual Engine.

8. The method of claim 7 further comprising receiving a determination of a validity of a design of the predetermined application based on said one of outputted and displayed attributes against inputted design goals.

9. The method of claim 8 wherein when said receipt of said determination step is an invalid design, said data objects in said database are modified.

10. The method of claim 1 wherein said steps are performed at a host data processing system.

11. The method of claim 8 further comprising:

receiving said Bytecode at a target data processing system;

receiving data and subsystems information into a target Virtual Engine;

interpreting said Bytecode using said target Virtual Engine; and

at least one of outputting and displaying attributes that drive at least one of a target output device and display.

12. The method of claim 11 wherein said Bytecode is downloaded to said target data processing system over a communication interface.

13. The method of claim 11 wherein said Virtual Engine is ported to said target data processing system.

14. The method of claim 11 further comprising receiving a determination of a validity of a design of the predetermined application based on said one of outputted and displayed attributes against inputted design goals.

15. The method of claim 14 wherein when said receipt of said determination step is an invalid design, said data objects in said database are modified.

16. The method of claim 1 wherein said Virtual Engine is reusable.

17. The method of claim 1 further comprising providing a human machine interface (HMI) with which to define and validate said data objects and attributes.

18. The method of claim 7 wherein said Virtual Engine is verified/certified for a first application only.

19. The method of claim 17 wherein said HMI is provided on a host data processing system.

20. The method of claim 17 further comprising converting said user-defined data objects and said attributes into a scripting language.

21. The method of claim 1 wherein said data objects are defined as at least one of static and dynamic objects.

22. The method of claim 1 wherein said data objects are defined in a specific format and syntax.

23. The method of claim 1 wherein said data objects are menu-driven.

24. The method of claim 1 wherein said data objects maintain a static copy of original attribute data, a dynamic copy, a storage for computational data, and reference to any unique error handling.

25. The method of claim 1 wherein each of said data objects is encapsulated.

26. The method of claim 1 further comprising storing said input of user-defined data objects and attributes in said database.

27. The method of claim 1 wherein said formatting step is performed by a formatter.

28. The method of claim 17 wherein an object compiler is embedded within said HMI.

29. The method of claim 17 wherein said HMI can be one of web-based and on a dedicated PC host.

30. The method of claim 1 wherein said predetermined application is a caution warning (CW) and system health management (HM) application.

31. The method of claim 4 wherein said object compiler maintains a master list of all said data objects and said attributes.

32. The method of claim 6 wherein said generating step is performed by a formatter.

33. The method of claim 32 wherein said formatter uses a domain-specific template and utilizes system-level requirements in generating said Requirements.

34. The method of claim 32 wherein said Requirements are generated in a desired format, including at least one of a commercial word processing program, HTML, and XML.

35. The method of claim 6 wherein said Reports identifies relationships among system variables in said database, to assist in a design of said database including eliminating errors in said database.

36. The method of claim 32 wherein said Test Cases includes a plurality of sets of test vectors generated by said formatter.

37. The method of claim 20 further comprising checking and validating said data objects and said attributes based on said scripting language.

38. The method of claim 37 wherein said scripting language is comprised of distinct sections that include lexical and syntax information.

39. The method of claim 38 wherein said sections include static and dynamic CW and system HM objects.

40. The method of claim 7 wherein said Virtual Engine reads addresses from object definitions for said data objects and attributes linked to external variables, and performs logical and arithmetic operations on said data objects and attributes.

41. The method of claim 1 wherein said interpreting step is performed cyclically to generate desired outputs periodically.

42. The method of claim 1 further comprising interpreting said Bytecode in units of objects selected for interpretation based upon data object internal criteria.

43. The method of claim 1 wherein said data and subsystems information is provided by an I/O Simulation.

44. The method of claim 43 wherein inputs to said I/O Simulation include signal ID, signal type range, enumerated types, internal vs. external signals items, signal values driven by data from at least one of simulation and other applications/sources, and automatic signal threshold selection based on modes of operations.

45. The method of claim 44 wherein outputs of said I/O Simulation include definition of outputs, emergency, warning, caution, advisory messages and driver action text, links with other application objects, auto-clear feature for all outputs, and capability for one of output and display priority attributes.

46. The method of claim 45 wherein outputs of said I/O Simulation are said attributes that drive said at least one of simulated output device and display.

47. The method of claim 8 further comprising generating conditions and alerts on said one of simulated output device and display against said design.

48. The method of claim 8 wherein when said design is valid, a requirements verification phase is initiated.

49. The method of claim 11 wherein when said Bytecode is downloaded to said target data processing system, a requirements verification phase is started.

50. The method of claim 12 wherein said communication interface is one of a serial and Ethernet interface.

51. The method of claim 10 wherein said downloaded Bytecode is a verbatim copy.

52. The method of claim 11 wherein said data and said subsystems information received by said target Virtual Engine is real-time information.

53. The method of claim 1 wherein said display is a multi-functional display unit.

54. The method of claim 11 wherein said one of target output device and display is one of an actual output device and display featuring real-time information.

55. The method of claim 14 wherein when said receipt of said determination step is a valid design, the application is ready for deployment.

117. The method of claim 35 wherein said Reports generates a difference report between a current version and an updated version to identify system variables in said database.

118. The method of claim 117 wherein a dependency report is generated on changed objects reported in said difference report.

119. The method of claim 118 wherein test cases are automatically generated based on said changed objects only.

120. The method of claim 119 further comprising:

invoking an object compiler to obtain an intermediate representation (IR) of said data objects, prior to said formatting step;

wherein said object compiler automatically runs test scripts which then automatically generates said automatic test cases.

56. A method of creating a predetermined application comprising:

receiving an input of user-defined data objects and attributes of said data objects;

storing said data objects and attributes in a database;

formatting said data objects and generating a Bytecode that defines components and attributes of the predetermined application;

interpreting said Bytecode using a Virtual Engine with simulated data and subsystems information;

at least one of outputting and displaying attributes that drive one of a simulated output device and display;

receiving a determination of a validity of a design of the predetermined application based on said one of outputted and displayed attributes, and when said design is valid;

receiving said Bytecode at a target data processing system;

receiving real-time data and subsystems information into a target Virtual Engine;

interpreting said Bytecode using said target Virtual Engine; and

at least one of outputting and displaying attributes that drive a target actual one of an output device and display.

57. A method of creating a caution warning (CW) and system health management (HM) application comprising:

receiving an input of user-defined data objects and attributes of said data objects;

storing said data objects and attributes in a database;

invoking an object compiler to obtain an intermediate representation of said data objects;

formatting said data objects and generating a Bytecode that defines components and attributes of the predetermined application;

interpreting said Bytecode using a Virtual Engine with simulated sensor data and subsystems health information;

at least one of outputting and displaying attributes that drive one of a simulated output device and display;

receiving a determination of a validity of a design of the predetermined application based on said one of outputted and displayed attributes, and when said design is valid;

receiving said Bytecode at a target data processing system;

receiving real-time sensor data and subsystems health information into a target Virtual Engine;

interpreting said Bytecode using said target Virtual Engine; and

at least one of outputting and displaying attributes that drive a target real-time one of an output device and display.

58. A system for creating a predetermined application comprising:

means for receiving an input of user-defined data objects and attributes of said data objects into a database;

means for formatting said data objects and generating a Bytecode that defines components and attributes of the application;

means for interpreting said Bytecode using simulated data and subsystems information; and

means for one of outputting and displaying attributes that drive a simulated one of an output device and display.

59. A system for creating a predetermined application comprising:

means for receiving a Bytecode into a data processing system;

means for receiving data and subsystems information into a Virtual Engine;

means for interpreting said Bytecode using said Virtual Engine; and

means for one of outputting and displaying attributes that drive one of an output device and display.

60. A system for creating a predetermined application comprising:

means for receiving an input of user-defined data objects and attributes of said data objects;

means for storing said data objects and attributes in a database;

means for formatting said data objects and generating a Bytecode that defines components and attributes of the predetermined application;

means for interpreting said Bytecode using a Virtual Engine with simulated data and subsystems information;

means for one of outputting and displaying attributes that drive a simulated one of an output device and display;

means for receiving a determination of a validity of a design of the predetermined application;

means for receiving said Bytecode at a target data processing system;

means for receiving real-time data and subsystems information into a target Virtual Engine;

means for interpreting said Bytecode using said target Virtual Engine; and

means for one of outputting and displaying attributes that drive a target actual one of an output device and display.

61. A method of creating a caution warning (CW) and system health management (HM) application comprising:

means for receiving an input of user-defined data objects and attributes of said data objects;

means for storing said data objects and attributes in a database;

means for invoking a compiler to obtain an intermediate representation of said data objects;

means for formatting said data objects and generating a Bytecode that defines components and attributes of the predetermined application;

means for interpreting said Bytecode using a Virtual Engine with simulated sensor data and subsystems health information;

means for one of outputting and displaying attributes that drive a simulated one of an output device and display;

means for receiving a determination of a validity of a design of the predetermined application;

means for receiving said Bytecode at a target data processing system;

means for receiving real-time sensor data and subsystems health information into a target Virtual Engine;

means for interpreting said Bytecode using said target Virtual Engine; and

means for one of outputting and displaying attributes that drive a target real-time one of an output device and display.

62. An apparatus for creating a predetermined application comprising:

a human machine interface (HMI) which creates user-defined data objects and attributes of said data objects specific to the application;

a formatter which formats said data objects and said attributes into a Bytecode; and

an I/O Simulation which provides simulated data and subsystems information to a Virtual Engine which interprets said Bytecode to produce a predetermined functionality and products intended for the application.

63. The apparatus of claim 62 further comprising a target Virtual Engine which interprets a downloaded Bytecode.

64. The apparatus of claim 62 further comprising a database which receives inputs of said created data objects and attributes.

65. The apparatus of claim 64 wherein said database is a caution warning (CW) Logic database.

66. The apparatus of claim 62 further comprising an object compiler which obtains an intermediate representation (IR) of said data objects and provides said IR to said formatter to generate said Bytecode.

67. The apparatus of claim 62 further comprising at least one of an output device and display which one of outputs and displays attributes of said interpreted Bytecode.

68. The apparatus of claim 64 wherein said formatter generates at least one of system Requirements, database statistical Reports, and Test Cases, in addition to said Bytecode.

69. The apparatus of claim 64 wherein said database can be modified.

70. The apparatus of claim 62 wherein said HMI, said formatter, said I/O Simulation, and said Virtual Engine are disposed at a host data processing system.

71. The apparatus of claim 67 wherein said at least one of output device and display shows real-time information.

72. The apparatus of claim 71 wherein said real-time information is sensor data and subsystems health information.

73. The apparatus of claim 62 wherein said data and subsystems information is simulated sensor data and subsystems health information.

74. The apparatus of claim 62 wherein the predetermined application is a caution warning (CW) and system health management (HM) application.

75. The apparatus of claim 63 further comprising a communication interface over which said downloaded Bytecode is sent.

76. The apparatus of claim 62 wherein said Virtual Engine is ported to a target processing system.

77. The apparatus of claim 62 wherein said Virtual Engine is reusable.

78. The apparatus of claim 62 wherein said Virtual Engine is verified/certified for a first application only.

79. The apparatus of claim 62 wherein said user-defined data objects and said attributes are converted into a scripting language.

80. The apparatus of claim 62 wherein said data objects are defined as at least one of static and dynamic objects.

81. The apparatus of claim 62 wherein said data objects are defined in a specific format and syntax.

82. The apparatus of claim 62 wherein said data objects are menu-driven.

83. The apparatus of claim 62 wherein said data objects maintain a static copy of original attribute data, a dynamic copy, a storage for computational data, and reference to any unique error handling.

84. The apparatus of claim 62 wherein each of said data objects is encapsulated.

85. The apparatus of claim 66 wherein said compiler is embedded within said HMI.

86. The apparatus of claim 62 wherein said HMI can be at one of web-based and hosted on a dedicated PC.

87. The apparatus of claim 66 wherein said object compiler maintains a master list of all said data objects and attributes.

88. The apparatus of claim 68 wherein said formatter uses a domain-specific template and utilizes system-level requirements in generating said Requirements.

89. The apparatus of claim 88 wherein said Requirements are generated in a desired format, including one of a commercial word processing program, HTML, and XML.

90. The apparatus of claim 68 wherein said Reports identify relationships among system variables in said database to assist in a design of said database including eliminating errors in said database.

91. The apparatus of claim 68 wherein said Test Cases include a plurality of sets of test vectors generated by said formatter.

92. The apparatus of claim 62 wherein said data objects and said attributes are checked and validated based on a scripting language.

93. The apparatus of claim 92 wherein said scripting language comprises distinct sections that include lexical and syntax information.

94. The apparatus of claim 93 wherein said sections include static text and dynamic CW and system HM objects.

95. The apparatus of claim 62 wherein said Virtual Engine reads addresses from object definitions for said data objects and attributes linked to external variables, and performs logical and arithmetic operations on said data objects and attributes.

96. The apparatus of claim 62 wherein said Bytecode is interpreted cyclically to generate desired outputs periodically.

97. The apparatus of claim 62 wherein said Bytecode is interpreted in units of objects selected for interpretation based upon data object internal criteria.

98. The apparatus of claim 62 wherein inputs to said I/O Simulation include signal ID, signal type range, enumerated types, internal vs. external signals items, signal values driven by data from simulation and/or other applications/sources, and automatic signal threshold selection based on modes of operations.

99. The apparatus of claim 67 wherein outputs of said I/O Simulation are attributes that drive said one of output device and display.

100. The apparatus of claim 99 wherein said outputs include a definition of outputs, emergency, warning, caution, advisory messages and driver action text, links with other application objects, auto-clear feature for all outputs, and capability for said one of output device and display priority attributes.

101. The apparatus of claim 100 wherein said one of output device and display includes conditions and alerts on said simulated one of output device and display against said design.

102. The apparatus of claim 63 wherein when a design of the application is valid, a requirements verification phase is initiated.

103. The apparatus of claim 63 wherein downloading said Bytecode is a start of a requirements verification phase.

104. The apparatus of claim 103 wherein said Bytecode is downloaded verbatim.

105. The apparatus of claim 75 wherein said communication interface is one of a serial and Ethernet interface.

106. The apparatus of claim 67 wherein said display is a multifunction display unit.

107. The apparatus of claim 63 wherein when a design of the application is valid, the application is ready for deployment.

121. The apparatus of claim 68 wherein said Reports generates a difference report between a current version and an updated version to identify system variables in said database.

122. The apparatus of claim 121 wherein a dependency report is generated on changed objects reported in said difference report.

123. The apparatus of claim 122 wherein test cases are automatically generated based on said changed objects only.

124. The apparatus of claim 123 further comprising:

an object compiler which obtains an intermediate representation (IR) of said data objects and provides said IR to said formatter to generate said Bytecode;

wherein test scripts are automatically generated by said object compiler which then generates said automatic test cases.

108. A method of creating a predetermined application comprising:

receiving a Bytecode at a data processing system;

receiving data and subsystems information into a Virtual Engine;

interpreting said Bytecode using said Virtual Engine; and

at least one of outputting and displaying attributes that drive one of an output device and display.

109. A computer-readable medium having contents that cause a computer system to create a predetermined application, the computer system having a program that performs the steps of:

receiving an input of user-defined data objects and attributes of said data objects into a database;

formatting said data objects and generating a Bytecode that defines components and attributes of the predetermined application;

interpreting said Bytecode using simulated sensor data and subsystems health information; and

at least one of outputting and displaying attributes that drive a simulated one of output device and display.

110. A computer-readable medium having contents that cause a computer system to create a predetermined application, the computer system having a program that performs the steps of:

receiving an input of user-defined data objects and attributes of said data objects;

storing said data objects and attributes in a database;

formatting said data objects and generating a Bytecode that defines components and attributes of the application;

interpreting said Bytecode using a Virtual Engine with simulated data and subsystems information;

at least one of outputting and displaying attributes that drive a simulated one of output device and display;

receiving a determination of a validity of a design of the predetermined application based on said one of outputted and displayed attributes, and when said design is valid;

receiving said Bytecode at a target data processing system;

receiving real-time data and subsystems information into a target Virtual Engine;

interpreting said Bytecode using said target Virtual Engine; and

at least one of outputting and displaying attributes that drive a target actual one of output device and display.

111. A computer-readable medium having contents that cause a computer system to create a caution warning (CW) and system health management (HM) application, the computer system having a program that performs the steps of:

receiving an input of user-defined data objects and attributes of said data objects;

storing said data objects and attributes in a database;

invoking an object compiler to obtain an intermediate representation of said data objects;

formatting said data objects and generating a Bytecode that defines components and attributes of the predetermined application;

interpreting said Bytecode using a Virtual Engine with simulated sensor data and subsystems health information;

at least one of outputting and displaying attributes that drive a simulated one of output device and display;

receiving a determination of whether a design of the application is valid, and when said design is valid;

receiving said Bytecode at a target data processing system;

receiving real-time sensor data and subsystems health information into a target Virtual Engine;

interpreting said Bytecode using said target Virtual Engine; and

at least one of outputting and displaying attributes that drive a target real-time one of output device and display.

112. A computer-readable medium having contents that cause a computer system to create a predetermined application, the computer system having a program that performs the steps of:

receiving a Bytecode at a data processing system;

receiving data and subsystems information into a Virtual Engine;

interpreting said Bytecode using said Virtual Engine; and

at least one of outputting and displaying attributes that drive one of an output device and display.

113. A computer system for creating a predetermined application, the computer system comprising:

a memory including;

at least one program for receiving an input of user-defined data objects and attributes of said data objects into a database;

formatting said data objects and generating a Bytecode that defines components and attributes of the application;

interpreting said Bytecode using simulated sensor data and subsystems health information; and

at least one of outputting and displaying attributes that drive a simulated one of output device and display; and

a processor for running said at least one program.

114. A computer system for creating a predetermined application, the computer system comprising:

a memory including;

at least one program for receiving a Bytecode to a data processing system;

receiving data and subsystems information into a Virtual Engine;

interpreting said Bytecode using said Virtual Engine; and

at least one of outputting and displaying attributes that drive one of an output device and display; and

a processor for running said at least one program.

115. A computer system for creating a predetermined application, the computer system comprising:

a memory including;

at least one program for receiving an input of user-defined data objects and attributes of said data objects;

storing said data objects and attributes in a database;

formatting said data objects and generating a Bytecode that defines components and attributes of the application;

interpreting said Bytecode using a Virtual Engine with simulated data and subsystems information;

at least one of outputting and displaying attributes that drive a simulated one of output device and display;

receiving a determination of whether a design of the application is valid, and when said design is valid;

receiving said Bytecode at a target data processing system;

receiving real-time data and information into a target Virtual Engine;

interpreting said Bytecode using said target Virtual Engine; and

at least one of outputting and displaying attributes that drive a target actual one of output device and display; and

a processor for running said at least one program.

116. A computer system for creating a caution warning (CW) and system health management (HM) application, the computer system comprising:

a memory including;

at least one program for receiving an input of user-defined data objects and attributes of said data objects;

storing said data objects and attributes in a database;

invoking an object compiler to obtain an intermediate representation of said data objects;

formatting said data objects and generating a Bytecode that defines components and attributes of the application;

interpreting said Bytecode using a Virtual Engine with simulated sensor data and subsystems health information;

at least one of outputting and displaying attributes that drive a simulated one of output device and display;

receiving a determination of whether a design of the application is valid, and when said design is valid;

receiving said Bytecode at a target data processing system;

receiving real-time sensor data and subsystems health information into a target Virtual Engine;

interpreting said downloaded Bytecode using said target Virtual Engine; and

at least one of outputting and displaying attributes that drive a target real-time one of output and display; and

a processor for running said at least one program.