Abstract:
A system and method for filtering information from an electronic flight bag system (EFB) used on a mobile platform, for example, on an aircraft. In one embodiment the system makes use of an EFB having a display with a selection to enable a filter. When the filter is enabled, the user is presented with a plurality of options for limiting retrieved information to only specific types of information or data. This allows one, two or more layers of filtering to be implemented on the information that is searched and obtained from the EFB, and enables a limited subset of information to be obtained that is available for viewing on a display associated with the EFB. The system and method eliminates or significantly reduces the amount of non-relevant information that the crew members are required to review when attempting to obtain specific types of information from the EFB.

Description:
FIELD 
       [0001]    The present disclosure relates to electronic flight bags used with various forms of mobile platforms, and more particularly, to an electronic flight bag having a system for enabling a user to filter information available from the flight bag to only a desired subset of information based on user defined criteria. 
       BACKGROUND 
       [0002]    The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. 
         [0003]    A typical electronic flight bag (EFB) system used with military and commercial aircraft has the capability to store and display a large number of aeronautical charts and other relevant flight-related documents. A conventional EFB is shown for convenience in  FIG. 1A . At any time, however, only a small subset of this information available from the EFB is actually, or potentially, relevant to the user. At present, a user who wishes to obtain a certain, limited type of information from the EFB may be required to peruse a considerable amount of non-relevant information before reaching the information or topic of particular interest. 
         [0004]    As will be appreciated, the operation of an aircraft by itself can require considerable attention from a crew member. Thus, there exists a significant interest in being able to quickly and easily provide only that information from the EFB that is relevant to a particular request or topic of interest being searched by a crew member who is attempting to retrieve information from the EFB. 
       SUMMARY 
       [0005]    The present disclosure is directed to an electronic information system and method. In one form, the system and method is directed to an electronic flight bag that may be used with commercial and/or military mobile platform, and in one example an aircraft. 
         [0006]    In one embodiment, the system comprises a display for displaying information pertinent to operation of a mobile platform, for example, an aircraft. The storage device is used for storing information pertinent to operation of the mobile platform. A selection device is used for enabling a user to select at least two different criterions by which information stored on the storage device can be filtered in order to present the user with a filtered subset of information that is highly pertinent to the route of travel or operation of the mobile platform. The subset of filtered information is made available to the user via the display. 
         [0007]    In one implementation the user selection device enables the user to select from at least two of the following criterion for filtering the information available in the storage device: (1) currently displayed information on the display; (2) information pertaining to a real time geographical location of the mobile platform; (3) information pertaining to a logical location of the mobile platform relative to a predetermined route of travel; and (4) a status of an operational aspect of the mobile platform. The filtered subset of information may be made available to the user in a plurality of different ways. For example, in one implementation, the filtered subset of information may be accessed through an icon presented on the display. In another implementation, the information may be accessed by the individual via a hyperlink presented in information (e.g., a text document, chart or graph) being displayed on the display. In another implementation, the filtered subset of information may be presented on the display as a listing of documents that the user may select from. The filtered subset of information represents a limited amount of information that is pertinent to the specific criteria selected by the user. 
         [0008]    A method for forming an electronic flight bag system is also disclosed. The method, in one implementation, involves providing an input by which a user may select a first criterion by which stored information pertaining to the mobile platform may be filtered. An operation involving filtering the information in accordance with the first criterion selected by a user may be performed to generate a first subset of information pertinent to the mobile platform. The first subset of information may then be filtered in accordance with a second criterion selected by the user to generate a second subset of information from the first subset of information. The second subset of information will be narrower and more highly focused that the information presented in the first subset. The second subset of information may then be made available to the user via the display. 
         [0009]    It will also be appreciated that a refinement of information may be sent to the aircraft via ATC (Air Traffic Controller) messages through one or more of a satellite communication channel, a traditional AM/FM radio communications channel, an ACARS (Aircraft Communication Address and Reporting System) or virtually any other communications scheme. Furthermore, it will be appreciated that on a typical flight plan there are numerous possible terminal procedures. The final landing may require one of many instrument approaches. The ATC may send the final or a preliminary set of terminal procedures to the aircraft rather than talking to the pilot. Thus, it will be appreciated that the EFB may be updated during flight of the aircraft with even further information, thus adding to the voluminous amount of overall information available to the pilot. 
         [0010]    Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0011]    The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. 
           [0012]      FIG. 1  is a simplified block diagram of a mobile platform, in this example an aircraft, incorporating one embodiment of an electronic flight bag system in accordance with the present disclosure; 
           [0013]      FIG. 1A  is a simplified view of the main page of a prior art electronic flight bag; and 
           [0014]      FIG. 2  is a flowchart of operations performed by one implementation of a method of the present system. 
       
    
    
     DETAILED DESCRIPTION 
       [0015]    The following description is merely exemplary in nature and is not intended to limit the present disclosure, application or uses. 
         [0016]    Referring to  FIG. 1 , there is shown one embodiment of an electronic flight bag system  10  in accordance with the present disclosure implemented on an aircraft  11 . While the aircraft  11  is depicted as a commercial aircraft manufactured by The Boeing Company, it will be appreciated that the system  10  could be implemented on commercial or military aircraft, or even on other types of mobile platforms. For example, the system  10  could just as readily be implemented on marine vessels, rotor craft, or even on land based vehicles such as trains, buses, etc. Thus, it will be appreciated that while the following description makes reference to an electronic “flight” bag system, that the system  10  is not limited to use with only airborne mobile platforms. 
         [0017]    The system  10  may include a display  12  that is in bi-directional communication with a processor  14 . The processor in turn may be in bi-directional communication with an information storage device  16 . Information storage subsystem  16  may comprise a non-volatile storage medium, for example a non-volatile magnetic storage medium such as a magnetic disc drive storage. The information storage subsystem  16  holds wide ranging and voluminous information pertaining, some of which is highly pertinent to the route of travel of the mobile platform, but much of which will not be pertinent. The storage subsystem  16  may store various operational procedures and checklists for the mobile platform, and quite possibly for various other types of aircraft. For example, the information storage subsystem  16  may hold a large number of aeronautical charts that may be used by crew members of the aircraft  11  in navigating the aircraft to a desired destination. Other, non-relevant, charts will also typically be stored and available on the storage subsystem  16 . Other possible information might be the locations of airports at various points along the flight path of the aircraft, as well as the locations of airports that are not on the flight path of interest. Similarly, all nearest navaids available may be stored, as well as all airways, all restricted airspace areas, etc. Information particular to the aircraft  11  may also be stored such as various checklists, procedures, etc., that the crew members of the aircraft  11  may be required to follow during different operational phases of the aircraft. As can be appreciated, then, the information storage subsystem  16  typically stores a large volume of complex information, a good portion of which may not be needed for navigating a particular aircraft to a particular destination airport. 
         [0018]    With further reference to  FIG. 1 , the display  12  may take a variety of forms, but in one form may comprise a CRT or LCD touch screen display. If a touch screen display is not used, then the display may include manual controls for selecting specific types of information from the system  10 . In one implementation, the display  12  includes an “Enable Filter” selection  18  for enabling a user to select a limited subset of information available from the system  10 . When the “Enable Filter” selection  18  is selected a menu  20  may be generated on the display  12 . The menu  20  may provide a plurality of different criterion for enabling a user to limit, in a customized manner, the information that is obtained from the information storage subsystem  16  and that is presented or accessible via the display  12 . In a commercial aircraft application, it will be appreciated that a carrier (airline) may also limit charts and information to only their selected or preferential airports; however, in an emergency situation the pilot may wish to view all airports that are able to facilitate an emergency procedure. The system  10  readily enables this functionality. 
         [0019]    Merely by way of example, the menu  20  may comprise a selection  22  for “Current Display”; a selection  24  for “Physical or Geographic Location”; a selection  26  for “Logical Location” and a selection  28  for “Status of Operation”. The “Current Display” selection  22 , when checked by the user, selects the information presently being displayed on the display  12  as a first “context” of information. Put differently, when the “Current Display” selection  22  is checked, this forms a first filter layer for limiting information provided by the system  10  to a first subset of the total information from the information storage subsystem  16 . When selection  24  relating for the “Physical or Geographic Location” is selected, this limits information provided by the system  10  to that which relates to the physical or geographical location of the aircraft  11  at the present time. For example, such information may comprise the nearest navaid, the nearest airway, nearby restricted airspace areas within a certain radius of the present location of the aircraft  11 , etc. When the “Logical Location” selection  26  is selected, this may provide information as to navaids, airways, procedures, etc. which are upcoming within a predetermined distance along the flight path of the aircraft  11  (the “now-next” approach). Such information could also be represented by elements that are relevant to the flight plan. For example, an aircraft might fly close to a particular element, but that element or chart might not be relevant to the flight plan. As a specific example, a wide body commercial jet (e.g., Boeing  747  aircraft) might fly over a small field that has an instrument approach but is far too small for the aircraft to make use of. Thus, even while the particular element is near the flight path, the particular element is still not pertinent to the type of aircraft or its current flight plan. 
         [0020]    The “Status of Operation” selection  28  pertains to relevant documents such as checklists, procedures, etc. pertaining to operations to be performed by the crew during different phases of operation of the aircraft  11 . The “Status of Operation” selection  28  may also involve emergency procedures that may become relevant if an emergency condition should develop (e.g., one engine goes out). 
         [0021]    By selecting two or more of selections  22 - 28 , the user can implement two or more layers of filtering. For example, if the “Physical or Geographic Location” selector  24  is selected along with the “Status of Operational” selection  28 , then a limited subset of information pertaining to, for example, airports within a flight range for a current fuel load of the aircraft  11  may be provided. Alternatively, a listing of airports within range of the aircraft  11 , taking into consideration reduced performance condition of the aircraft (e.g., one engine is out), may also be presented. As another example, selecting the “Current Display” selection  22  when a current chart is being displayed on the display  12 , together with the “Logical Location” selection  26 , may allow linking or listing of the next chart(s) in a sequence. For example, such a sequence may involve linking the relevant approach charts relating to a specific arrival chart that is being display on the display  12 . As another example, selecting the “Current Display” selection  22  plus the “Logical Location” selection  26 , plus the “Status of Operation” selection  28  may allow highlighting of those airports on a currently displayed chart on the display  12  that are suitable for diverting to for an emergency landing. 
         [0022]    As will be appreciated, the ability to select from two or more contexts of information to which to limit the information that is made available to a crew member on a display can significantly reduce the amount of information presented to the crew member that needs to be studied and interpreted during operation of the aircraft  11 . This can significantly ease the burden of crew members in monitoring and studying important flight related information. 
         [0023]    Referring to  FIG. 2 , a flowchart illustrating the exemplary operations performed by the system  10  is illustrated. In operation  30 , the user selects the “Enable Filter” selection  18 . This places the system  10  in the mode to display only relevant charts or other forms of information that will be selected by the user. In operation  32 , the user selects two or more of the sections  22 - 28  in  FIG. 1  to be used as filters for filtering available charts/data or other information available through the system  10 . In operation  34 , the processor  14  ( FIG. 1 ) filters out the non-elected charts/documents/information to produce a subset of information that is provided to the display  12 . In operation  36 , the filtered subset of information is presented to the display  12  in one of a plurality of forms. In one form, the information may be accessible to the user via an button, switch or icon, as indicated by box  38 . In another implementation, the information may be made available through a hyperlink  40  that is presented in a document or chart being displayed on the display  12 . In still another implementation the filtered subset of information may be made available as a listing of documents, indicated by block  42 , that is presented on the display  12 . The user may simply click on a title of any one of the listed document titles to pull up a specific document onto the display  12 . 
         [0024]    The system and method of the present disclosure thus enables users to filter information available through an electronic flight bag system to a desired, limited subset of information, in accordance with one or more different contexts or criteria. This effectively removes a large amount of non-relevant information that the crew members might otherwise be required to scroll through on the display  12  before obtaining desired data, charts, or information. The system and method of the present disclosure thus can significantly ease the burden on crew members in managing and/or navigating flight of the aircraft  11  to a desired destination. 
         [0025]    While various embodiments have been described, those skilled in the art will recognize modifications or variations which might be made without departing from the present disclosure. The examples illustrate the various embodiments and are not intended to limit the present disclosure. Therefore, the description and claims should be interpreted liberally with only such limitation as is necessary in view of the pertinent prior art.