Patent Abstract:
The military data link integration solution provides a common and reusable approach to interface tactical data link radios with legacy subsystems on each unique military platform. The solution implements the full Link 16 J-Series message set. Enhancements are provided that allow the military user to activate or deactivate specific messages for each unique platform and to customize message processing and display selections through user defined instructions. The solution also provides the capability to automatically re-configure itself for subsystem interfaces and the integration of subsystem functions on each unique platform without the need to modify the product.

Full Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention (Technical Field) 
         [0002]    The present invention relates to digital messaging and more particularly to the integration of legacy and new mission display systems with the military data link radios and the implementation of the Link 16 message set defined by MIL-STD-6016 and associated message processing capabilities. 
         [0003]    2. Background Art 
         [0004]    The military uses various tactical data link radios to send and receive digital voice and data between their air, land, sea and space vehicles, and command and control facilities. On each vehicle and in each command and control facility, these data link radios are interfaced to various mission computers and display systems. The data transmitted across these data link radios consists of messages, message formats, and message protocols defined by various message standards. The mission and display systems use the data contained in these messages from external sources and generate the data put into these messages sent to external systems. 
         [0005]    Some examples of military data link radios are UHF line of sight (LOS) radios, UHF DAMA SATCOM, EHF MDR SATCOM, HF radios, Joint Tactical Information Distribution System (JTIDS), Multi-function Information Distribution System (MIDS), and Joint Tactical Radio System (JTRS). Military data link message standards can be Link 4, Link 11, Link 16, Link 22, and the Variable Message Format (VMF). Examples of mission and display systems are vehicle controls and displays equipment, mission computers, workstations, and network servers. 
         [0006]    The Department of Defense (DoD) has recently selected the Link-16 data link message set (in accordance with MIL-STD-6016) as the standard for use on military platforms for tactical data link operations. In addition, the DoD is currently developing the Joint Tactical Radio System (JTRS) to use as the standard data link radio system. Each existing (legacy) and future military platform will use the JTRS with the Link 16 message set for its tactical data link capability. 
         [0007]    As outlined in the DoD Command, Control, Communications, Computers, and Intelligence (C4I) Joint Tactical Data Link Management Plan (dated June 2000), a wide range of legacy military platforms will be upgraded to incorporate the JTRS with the Link-16 message set through 2015 and beyond. These same legacy platforms are currently deployed with existing subsystems that generate information used by or consume information provided by various existing and disparate military data link systems. When the new JTRS equipment is introduced into these legacy platforms, there will be a need to interface the existing platform subsystems with the new JTRS equipment. Also, each existing subsystem will need to be upgraded to utilize the new and evolving Link 16 message set. 
         [0008]    Since most of these existing platform subsystems were developed in the past, they either implement a subset of the Link 16 message set, or they implement a different and older data link message set such as Link 4 or Link 11. Also, many existing subsystems were designed to interface with older data link radio equipment and are not compatible with the newer data link radio equipment and message processing protocols. Each of these prior art systems are point solutions unique to the specific platform they are implemented on, and they are each provided by a specific company. These point solutions include receive, transmit, and processing functions. Receive functions receive the message from the data link radio, decode the message data, and send the data to the appropriate subsystem. Transmit functions collect specific data from platform subsystems, encode the data into the proper message format, and send the message to the data link radio. Processing functions act on selected data elements to perform specific tasks such as filtering, correlation, keeping track files, and other mission specific functions. Each solution only implements the subset of messages required for that platform&#39;s mission. When future changes are needed because the military wants to add, delete or modify specific messages and message processing for the platform, the military must return to the previous point solution company and pay them to implement the changes. Thus, the existing product solutions do not provide the military with the capability of modifying specific messages without a major product redesign on each unique platform. For example, on fighter aircraft the mission computer interfaces to the existing data link radio and performs the message processing for the message subset implemented on the specific fighter. The display system also processes those messages that contain situational awareness information, but tailors it for the specific fighter mission and display requirements. 
         [0009]    There are many different implementations of data link integration used in the United States military aircraft as well as NATO countries. Each of these are point solutions that were designed specifically for the aircraft they are used on. A specific example is the Data Link Interface Processor (DLIP) provided by Thales Communications. However, these existing implementations do not offer the benefits of the Military Data Link Integration Application:
       They only implement a subset of the full J-Series message set.   They are not user programmable. Any addition or deletion of messages or special message processing functions requires redesign of the operational software.   They do not use API databases to allow I/O re-configuration without modification.   They do not provide standard display system interfaces and video outputs.       
 
         [0014]    As a result, the upgrade costs for these existing platform subsystems will be enormous if traditional subsystem upgrade approaches are used. Traditional upgrade approaches involve point solutions and upgrades by different integrators on each platform application. A need exists for a common and low cost military data link integration (MDLI) product that can be used in multiple and disparate platform applications. 
       SUMMARY OF THE INVENTION 
     Disclosure of the Invention 
       [0015]    The present invention implements a common scalable design that can be used on each and every platform application. The invention implements the complete or full Link 16 J-Series message set with a database driven design so that the military user can control message activation, message deactivation, and message processing instructions for each platform application. The database used for this capability is created by and maintained by the military user. The military does not need to pay any company to do this for them. This allows the common MDLI product to work on each unique platform without the need to recompile the operational software. 
         [0016]    The present invention implements a database driven design that allows automatic re-configuration of the MDLI product for each unique platform without the need for software changes to the product. The database used for this capability contains the interface instructions for each type of subsystem used on each unique platform and allows the common MDLI product to work on each unique platform without the need to recompile the operational software. 
         [0017]    The present invention implements special message processing functions. These functions provide correlation of similar data from disparate sources, target track files, formatting of data into situational awareness display formats, automatic event triggers and associated actions, automatic triggers for transmit messages, mission recording and playback, and others. In addition, the present invention provides standard video outputs for Link 16 display formats. 
         [0018]    A primary object of the present invention is to provide a common scalable design that can be used on each and every platform application 
         [0019]    One advantage of the Military Data Link Integration Application is that it provides the military with a low cost solution. The user can tailor how the Military Data Link Integration Application works on each unique host platform simply by updating the Applications Programming Interface (API) Databases and User Modifiable Instructions (UMI) Databases. This gives the user control over the use and operation of the solution without the need to pay someone to modify it for them. 
         [0020]    Another advantage of the Military Data Link Integration Application is that it is flexible, scalable, and reusable for each unique host platform. Through the API Database it can be used on multiple unique host platforms to interface with available communications subsystems and legacy subsystems without any required modifications. 
         [0021]    Yet another advantage of the Military Data Link Integration Application is that it implements the complete set of Link 16 messages and processing rules defined in MIL-STD-6016. The user can then activate or deactivate messages as required for each unique host platform. 
         [0022]    Another advantage of the Military Data Link Integration Application is that it implements special message processing functions and utilities that can be activated or deactivated by the user. These message processing functions and utilities allow the user to add value to the data and messages sent by the Military Data Link Integration Application to available communications subsystems and legacy subsystems on the host platform. 
         [0023]    Another advantage of the Military Data Link Integration Application is that it provides standard display system interfaces to support flexible and user programmable display formats to view Link 16 data and legacy subsystem data. 
         [0024]    Another advantage of the Military Data Link Integration Application is the Ground Based Software Tool that allows users to define and create the API Databases and UMI Databases on a workstation in an office environment. 
         [0025]    Another advantage of the Military Data Link Integration Application common solution is that is saves the user money on training and maintenance costs across all host platforms. 
         [0026]    Other objects, advantages and novel features, and further scope of applicability of the present invention will be set forth in part in the detailed description to follow, taken in conjunction with the accompanying drawings, and in part will become apparent to those skilled in the art upon examination of the following, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0027]    The accompanying drawings, which are incorporated into and form a part of the specification, illustrate several embodiments of the present invention and, together with the description, serve to explain the principles of the invention. The drawings are only for the purpose of illustrating a preferred embodiment of the invention and are not to be construed as limiting the invention. In the drawings: 
           [0028]      FIG. 1  depicts the military data link integration application implantation on a host processor; 
           [0029]      FIG. 2  is a flow chart that shows the preferred military data link integration application; 
           [0030]      FIG. 3  is a flow chart showing the data link message processing flow; 
           [0031]      FIG. 4  is a flow chart showing the data link platform integration processing flow; 
           [0032]      FIG. 5  shows the military data link integration application hosted on a general purpose processor module; and 
           [0033]      FIG. 6  shows the military data link integration application hosted on an image processing module. 
       
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Best Modes for Carrying out the Invention 
       [0034]    The Military Data Link Integration Application is a software partition that executes on a host processor.  FIG. 1  illustrates how the Military Data Link Integration Application  100  software partition is implemented. This same implementation is envisioned for each platform in which the Military Data Link Integration Application is used. The Military Data Link Integration Application consists of the following functions: Data Link Message Processing  200 , Data Link Platform Integration  400 , Application Programming Interface (API) Database  300 , Message Parameter Database  340 , and User Modifiable Instructions (UMI) Database  350 . These Military Data Link Integration Application functions ( 200  through  400 ) are implemented in a computer system available on each host platform. The host computer system is expected to consist of a Host Applications Processor  632  module, Legacy Image Processing Module (IPM)  634 , Legacy Input and Output (I/O) Modules  636 , and a computer cabinet with the necessary Legacy Computer Module Interconnects  638 . The Military Data Link Integration Application functions ( 200  through  400 ) execute on the Host Applications Processor  632  and interface with legacy software Mission Applications  630  that are also executing on the Host Applications Processor  632  through pre-defined API data exchange protocols in the API Database  300 . The Military Data Link Integration Application functions ( 200  through  400 ) also interface with external Communications Subsystems  500  and other Legacy Subsystems  600  through the host computer system Legacy IPM  634 , Legacy I/O Modules  636 , and their associated Legacy Computer Module Interconnections  638 . The pre-defined data exchange protocols consist of host computer system port addresses, message structures and formats, and data exchange command sequences. The Military Data Link Integration Application functions ( 200  through  400 ) utilize these host computer resources ( 632 ,  634 ,  636  and  638 ) to exchange data with external subsystems ( 500  and  600 ) over pre-defined system interfaces Legacy I/O  660  and Link 16 Messages  550 . Additionally, the Military Data Link Integration Application databases ( 300  and  350 ) can be created off the platform on a Ground Based Software Tool  700 . These databases can then be uploaded to the Host Application Processor  632  memory through a data loader within the Legacy Subsystems  600  using a Data Loader Cartridge  702 . These databases ( 300  and  350 ) are used by the Data Link Message Processing  200  and Data Link Platform Integration  400  functions to automatically configure the Military Data Link Integration Application on the host platform, and to implement user defined instructions. 
         [0035]      FIG. 2  illustrates the Military Data Link Integration Application  100  approach consisting of its major functions Data Link Message Processing  200  and Data Link Platform Integration  400 . It also includes the API Database  300 , the Message Parameter Database  340 , and the User Modifiable Instructions (UMI) Database  350 . The Data Link Message Processing  200  function implements the Link 16 message set with its processing rules and special message functions. It interfaces with the Communications Subsystems  500  on the host platform, databases ( 300 ,  340  and  350 ), and the Data Link Platform Integration  400  function. The Data Link Platform Integration  400  function implements the rules and instructions needed to interface with and interact with the various Legacy Subsystems  600  on the host platform, as well as Special Platform Functions  460 , under the control of the Data Link Message Processing  200  function. Control is accomplished through the Control and Status Exchange  320  interface. The Data Link Platform Integration  400  function also implements the data loader function that is used to update the API Database  300  and the UMI Database  350  using the host platform&#39;s Data Loader  640  device. 
         [0036]      FIG. 3  provides the Data Link Message Processing  200  functional flow chart. The processing flow illustrated in  FIG. 3  implements the functions  210  through  260  identified on  FIG. 2 . The Automatically Configurable API  210  function shown on  FIG. 2  is implemented in processes  212  through  224  of FIG.  3 . The Decode Messages  230  function shown on  FIG. 2  is implemented in processes  230  and  232  of  FIG. 3 . The Encode Messages  240  function shown on  FIG. 2  is implemented in processes  240  and  242  of  FIG. 3 . The function Standard Message Processing and Link 16 Network Management Rules per MIL-STD-6016  250  shown on  FIG. 2  is implemented in processes  252  through  256  of  FIG. 3 . The Special Message Functions  260  shown on  FIG. 2  is implemented in process  260  of  FIG. 3 . 
         [0037]    The Data Link Message Processing  200  function processing flow is as follows. As shown in  FIG. 3 , Startup  212  occurs after application of power when the Host Applications Processor  632  ( FIG. 1 ) initiates the execution of the Data Link Message Processing  200  function. The Initialize Communications Interface  214  task is executed to establish the interfaces to the Communications Subsystems  500  using pre-defined instructions in the Communications Equipment API  302  database obtained through the API Configurations  310  interface ( FIG. 2 ). This database contains the instructions to identify which Communications Subsystems  500  are available on the host platform. The database also provides Host Applications Processor  632  interface port addresses and protocols, message structures and formats, and command sequences to accomplish data exchange for each of the available communications subsystems ( 510  through  540 ). After initialization is complete, Receive Messages  216  task is executed to poll each available Communications Subsystem ( 510  through  540 ) for incoming Link 16 Messages  550 . These incoming messages are received into Receive Message Queue  222 . Decode Messages  230  task is then executed to unpack each received message in Receive Message Queue  222  and extract the data contained within each message. The extracted data is placed in Receive Message Data  232  storage area. Process Input Data  252  task is then executed to process incoming Link 16 data in accordance with the message processing rules defined in MIL-STD-6016  254 . All Link 16 message processing rules are contained in MIL-STD-6016 Message Rules  254  data storage area. Process Input Data  252  task uses pre-defined Message Processing Instructions  354  to determine which Link 16 messages have been activated for the host platform and then uses the appropriate MIL-STD-6016 Message Rule  254  on received message data  232 . Message parameters obtained from incoming data are stored in Message Parameter Database  340 . Execute Special Message Functions  260  task is then executed. Execute Special Message Functions  260  task uses Data Collection Instructions  356  to identify data parameters to be collected from Legacy Subsystems  600  on the host platform. These collected data parameters are stored in Message Parameter Database  340 . Execute Special Message Functions  260  task uses Message Processing Instructions  354  to activate utilities on user specified data parameters. These utilities include data fusion algorithms, creation and update of track files, creation and update of shared situational awareness (SSA) information, and other user defined data operations. The results of these utility operations are stored in Message Parameter Database  340 . Execute Special Message Functions  260  task uses Routing Instructions  352  to identify data in Message Parameter Database  340  to be sent to specific Legacy Subsystems  600  and Communications Subsystems  500 . Execute Special Message Functions  260  task uses Display Format Instructions  358  to format selected data in Message Parameter Database  340  for display. Process Output Data  256  task is then executed. This task formats the data tagged in Message Parameter Database  340  for output to available Communications Subsystems  500 . The tagged data is formatted in accordance with MIL-STD-6016 Message Rules  254 , and then is placed in Transmit Message Data  242  buffer. Encode Messages  240  task is then executed to encode the output data into the appropriate message format and to place these formatted messages in Transmit Message Queue  224 . Transmit Messages  218  task is then executed to send each transmit message to the appropriate Communications Subsystem ( 510 ,  520 ,  530 , or  540 ). A check is made to decide if it is time to Shutdown  220 . If not, then Data Link Message Processing  200  function repeats itself by starting again with Receive Message  216  task. This process is repeated at a pre-defined update rate. Otherwise, Data Link Message Processing  200  function is Shutdown  222 . 
         [0038]      FIG. 4  provides the Data Link Platform Integration Processing  400  functional flow chart. The processing flow illustrated in  FIG. 4  implements the functions  410  through  460  identified on  FIG. 2 . Automatically Configurable API  410  function ( FIG. 2 ) is implemented in processes  412  through  424  of  FIG. 4 . Decode Data  430  function ( FIG. 2 ) is implemented in processes  430  and  432  in  FIG. 4 . Encode Data  440  function ( FIG. 2 ) is implemented in processes  440  and  442  of  FIG. 4 . Function Rules and Instructions for Unique Host Platform Requirements  450  ( FIG. 2 ) is implemented in processes  452  through  456  of  FIG. 4 . Special Platform Functions  460  ( FIG. 2 ) is implemented in process  460  of  FIG. 4 . 
         [0039]    Data Link Platform Integration Processing  400  function processing flow is as follows. Startup  412  occurs after application of power when Host Applications Processor  632  ( FIG. 1 ) initiates the execution of Data Link Platform Integration Processing  400  function. Initialize Legacy Interfaces  414  task is executed to establish the interfaces to Legacy Subsystems  600  using pre-defined instructions in the Displays Equipment API  304  database, Mission Equipment API  306  database, and Platform Unique API  308  database using API Configurations  310  interface ( FIG. 2 ). These databases contain the instructions to identify which Legacy Subsystems  600  are available on the host platform. These databases also provide Host Applications Processor  632  interface port addresses and protocols, message structures and formats, and command sequences to accomplish data exchange for each of the available legacy subsystems ( 610  through  650 ). After initialization is complete, Receive Data  416  task is executed to poll each available Legacy Subsystem ( 610  through  650 ) for incoming Legacy I/O  660 . The incoming data is received into Receive Data Queue  422 . Decode Data  430  task is then executed to unpack each received data item in Receive Data Queue  422  and extract the data from the legacy subsystem message format. The extracted data is placed in Receive Data  432  buffer. Process Input Data  452  task is then executed to process incoming data in accordance with Platform Integration Rules  454 . Process Input Data  452  task uses pre-defined Platform Application Instructions  360  to determine which legacy subsystems have been activated for the host platform and then uses the appropriate Platform Integration Rules  454  on Receive Data  432 . Message parameters obtained from incoming data are stored in Message Parameter Database  340 . Execute Special Platform Functions  460  task is then executed. Execute Special Platform Functions  460  task uses Data Collection Instructions  356  to identify data parameters to be collected from Legacy Subsystems  600  on the host platform. These collected data parameters are stored in Message Parameter Database  340 . Execute Special Platform Functions  460  task uses Platform Application Instructions  360  to activate utilities on user specified data parameters. These utilities include display applications, mission applications, and other user defined data operations. The results of these utility operations are stored in Message Parameter Database  340 . Execute Special Platform Functions  460  task uses Display Format Instructions  358  to format selected data in Message Parameter Database  340  for display. Process Output Data  456  task is then executed. This task formats the data tagged in Message Parameter Database  340  for output to available Legacy Subsystems  600 . The tagged data is formatted in accordance with Platform Integration Rules  454 , and then is placed in Transmit Data  442  buffer. Encode Data  440  task is then executed to encode the output data into the appropriate message format and to place these formatted messages in Transmit Data Queue  424 . Transmit Data  418  task is then executed to send each transmit data message to the appropriate Legacy Subsystem ( 610 ,  620 ,  630 ,  640  or  650 ). A check is made to determine if it is time to Shutdown  420 . If not, then Data Link Platform Integration Processing  400  function repeats itself by starting again with Receive Data  416  task. This process is repeated at a pre-defined update rate. Otherwise, Data Link Platform Integration Processing  400  function is Shutdown  425 . 
         [0040]    A capability of the Military Data Link Integration Application is the ability to automatically initialize its interfaces to Communications Subsystems  500  on the host platform. This capability allows the Military Data Link Integration Application to be hosted on many different host platforms without the need to modify it for different communications equipment configurations. Automatically Configurable API  210 , shown on  FIG. 2 , uses Communications Equipment API  302  database to obtain instructions to identify which Communications Subsystems ( 510  through  540 ) are available on the host platform. Communications Equipment API  302  database also provides Host Applications Processor  632  ( FIG. 1 ) interface port addresses and protocols, message structures and formats, and command sequences to accomplish data exchange for each of the available communications subsystems ( 510  through  540 ). Communications Equipment API  302  database is created off the platform using Ground Based Software Tool  700  shown in  FIG. 1 . Ground Based Software Tool  700  is provided on a workstation in an office environment. This tool is used to define the interface port addresses and protocols, message structures and formats, and command sequences to accomplish data exchange for each of the communications subsystems available on a specific platform and to create the associated Communications Equipment API  302  database for the host platform. This Communications Equipment API  302  database is then copied to a Data Loader Cartridge  702  ( FIG. 1 ). Data Loader Cartridge  702  is then used on the host platform to load Communications Equipment API  302  database into Military Data Link Integration Application API Database  300  storage area through host platform Data Loader  640  shown in  FIG. 2 . The instructions in Communications Equipment API  302  database are used by Initialize Communications Interface  214  task ( FIG. 3 ) to automatically configure Data Link Message Processing  200  functions for the host platform communications subsystems ( 510  through  540  in  FIG. 2 ). Communications Equipment API  302  database is also used by Receive Messages  216  task and Transmit Messages  218  task to automatically configure these tasks to exchange incoming and outgoing messages with the available host platform communications subsystems ( 510  through  540 ). 
         [0041]    Another capability of the Military Data Link Integration Application is the ability to automatically initialize its interfaces to Legacy Subsystems  600  on the host platform. This capability allows the Military Data Link Integration Application to be hosted on many different host platforms without the need to modify it for different legacy mission and displays equipment configurations. Automatically Configurable API  410  ( FIG. 2 ) uses Displays Equipment API  304  database, Mission Equipment API  306  database, and Platform Unique API  308  database to obtain instructions to identify which legacy subsystems ( 610  through  650 ) are available on the host platform. The databases ( 304 ,  306  and  308 ) also provide Host Applications Processor  632  ( FIG. 1 ) interface port addresses and protocols, message structures and formats, and command sequences to accomplish data exchange for each of the available legacy subsystems ( 610  through  650 ). The instructions in the databases ( 304 ,  306  and  308 ) are used by Initialize Legacy Interfaces  414  task, shown in  FIG. 4 , to automatically configure Data Link Platform Integration Processing  400  functions for the host platform legacy subsystems ( 610  through  650  in  FIG. 2 ). The databases ( 304 ,  306  and  308 ) are also used by Receive Data  416  task and Transmit Data  418  task to automatically configure these tasks to exchange incoming and outgoing data with the available host platform legacy subsystems ( 610  through  650 ). 
         [0042]    Another capability of the Military Data Link Integration Application is the ability to implement user specified instructions associated with Link 16 message processing and unique host platform functions. This capability allows the user to tailor how Link 16 messages are processed, to define special message processing functions, and to define special platform integration functions without the need to modify the Military Data Link Integration Application for each host platform configuration. Several databases are used to implement this capability. These databases, shown on  FIG. 2 , are Routing Instructions  352  database, Message Processing Instructions  354  database, Data Collection Instructions  356  database, Display Format Instructions  358  database, and Platform Application Instructions  360  database. Routing Instructions  352  database provides instructions that identify data to be routed and the associated source and destination information. Source instructions identify the Link 16 message in which the data is contained or the legacy subsystem that provides the data. Destination instructions identify the Link 16 message in which the data is required or a legacy subsystem that required the data. Execute Special Message Functions  260  task, shown in  FIG. 3 , uses Routing Instructions  352  database to identify and tag source data in Message Parameter Database  340 , shown in  FIG. 2 , to be sent to specific legacy subsystems ( 610  through  650 ) and communications subsystems ( 510  through  540 ). The source data tagged for Link 16 messages is then processed by Process Output Data  256  task ( FIG. 3 ), Encode Messages  240  task ( FIG. 3 ) and Transmit Messages  218  task ( FIG. 3 ). This data is incorporated into Link 16 messages that are sent to the available communications subsystems ( 510  through  540 ). The source data tagged for legacy subsystems is then processed by Process Output Data  456  task ( FIG. 4 ), Encode Data  440  task ( FIG. 4 ) and Transmit Data  418  task ( FIG. 4 ). This data is incorporated into messages that are sent to the available legacy subsystems ( 610  through  650 ). Message Processing Instructions  354  database provides instructions that identify which Link 16 messages to activate or deactivate, and which utility functions to activate for specific data items. Message Processing Instructions  354  database is used by Process Input Data  252  task, ( FIG. 3 ), to identify which Link 16 messages have been activated for the host platform and then uses the appropriate MIL-STD-6016 Message Rules  254  on received message data  232 . Message parameters obtained from incoming messages are stored in Message Parameter Database  340 . Execute Special Message Functions  260  task also uses Message Processing Instructions  354  database to activate utilities on user specified data parameters. These utilities include data fusion algorithms, creation and update of track files, creation and update of shared situational awareness (SSA) information, and other built-in data operations. The results of these utility operations are stored in Message Parameter Database  340 . Data Collection Instructions  356  database provides instructions that identify what data is to be collected from the available communications subsystems ( 510  through  540 ) and legacy subsystems ( 610  through  650 ). Data Collection Instructions  356  database is used by Execute Special Message Functions  260  task, ( FIG. 3 ), to identify data parameters to be collected from available communications subsystems ( 510  through  540 ) on the host platform. These collected data parameters are stored in Message Parameter Database  340 . Data Collection Instructions  356  database is also used by Execute Special Platform Functions  460  task, ( FIG. 4 ), to identify data parameters to be collected from legacy subsystems ( 610  through  650 ) on the host platform. These collected data parameters are stored in Message Parameter Database  340 . Display Format Instructions  358  database provides instructions that identify what data needs to be formatted for display and what display formats to send to Display Subsystem  610 . Display Format Instructions  358  database is used by Execute Special Message Functions  260  task ( FIG. 3 ) to identify Link 16 message data in Message Parameter Database  340  that needs to be formatted, and what formatting instruction to use. The formatted data is placed in Message Parameter Database  340 . Display Format Instructions  358  database is also used by Execute Special Platform Functions  460  task ( FIG. 4 ) to identify legacy subsystem data in Message Parameter Database  340  that needs to be formatted, and what formatting instruction to use. The formatted data is placed in Message Parameter Database  340 . The formatted display data and selected display format information contained in Message Parameter Database  340  is then used by Process Output Data  456  task, Encode Data  440  task, and Transmit Data  418  task to send the formatted display data and selected display format information to Display Subsystem  610  ( FIG. 2 ) on the host platform. Platform Application Instructions  360  database provides instructions that identify which platform utility functions to activate. Process Input Data  452  task ( FIG. 4 ) uses pre-defined Platform Application Instructions  360  to determine which legacy subsystems have been activated for the host platform and then uses the appropriate Platform Integration Rules  454  on Receive Data  432 . Message parameters obtained from incoming data are stored in Message Parameter Database  340 . Execute Special Platform Functions  460  task also uses Platform Application Instructions  360  database to activate utilities on user specified data parameters. These utilities include display applications, mission applications, logic operations, preferred channel selections, service operational preference tables, mission record and playback, and other user defined data operations. The results of these utility operations are stored in Message Parameter Database  340 . Another capability of the Military Data Link Integration Application is the ability to create its databases ( 302  through  308  and  352  through  360 ) off the host platform using Ground Based Software Tool  700  shown in  FIG. 1 . Ground Based Software Tool  700  is provided on a workstation in an office environment. This tool is used to collect information, to define and create data and data structures, and to define and create the associated instructions required in each database ( 302  through  308  and  352  through  360 ). Once created, the databases ( 302  through  308  and  352  through  360 ) are then copied to a Data Loader Cartridge  702  ( FIG. 1 ). Data Loader Cartridge  702  is then used on the host platform to load the individual databases ( 302  through  308  and  352  through  360 ) into API Database  300  storage area and UMI Database  350  storage area through host platform Data Loader  640  shown in  FIG. 2 . 
         [0043]    Since the Military Data Link Integration Application is a software partition, it can be implemented in an existing computer system on the host platform as illustrated in  FIG. 1 . It can also be hosted on a General Purpose Processor module  680  illustrated in  FIG. 5 , or an Image Processing Module  690  illustrated in  FIG. 6 . 
         [0044]    In  FIG. 5  API Database  300  is used to define the interfaces between Military Data Link Integration Application and Mission Applications  630  executing on Host Applications Processor  632 . API Database  300  is also used to define the interfaces to Legacy IPM  634  and Legacy I/O Modules  636 . 
         [0045]    In  FIG. 6  API Database  300  is used to define the interfaces between the Military Data Link Integration Application and Mission Applications  630  executing on Host Applications Processor  632 . API Database  300  is also used to define the interfaces to Legacy I/O Modules  636 . Legacy IPM  634  is eliminated because it is replaced with Image Processing Module  690 . 
         [0046]    The advantage of hosting the Military Data Link Integration Application on a General Purpose Processor module or an Image Processing Module is that these provide more flexibility in implementing the Military Data Link Integration Application on host platforms that do not have an existing computer system. In the alternative, the existing computer system may not have the processing and memory resources required for the Military Data Link Integration Application. In these cases, the General Purpose Processor module or Image Processing Module can be integrated into any legacy subsystem equipment that has a spare card slot. 
         [0047]    Although the invention has been described in detail with particular reference to these preferred embodiments, other embodiments can achieve the same results. Variations and modifications of the present invention will be obvious to those skilled in the art and it is intended to cover in the appended claims all such modifications and equivalents. The entire disclosures of all references, applications, patents, and publications cited above, are hereby incorporated by reference.

Technology Classification (CPC): 7