Embedded Computers Allied Data Systems

Embedded Computers * Military and Avionic Data Bus Interfaces * Industrial Interfaces * PC/104

The products on this page are a few of the MIL-STD-1553 projects we have completed for our customers.

If you have a project that requires 1553, then we can help you with the components or the system.

Our capabilities

As a company we have extensive experience in embedded computing applications in industrial and military applications. This along with our our long history representing Data Device Corporation and including our previous projects makes us the ideal company to design and develop solutions utilizing the MIL-STD-1553 Data Bus. Please note that while we have built a number of 1553 systems we are also DDC's representative, we are just as happy to assist you using DDC's components and boards, but if you need a low risk supplier of systems then we can certainly help you with that also.

Our Past Projects

We have supplied a lot of technical assistance to our customers. In order to do that effectively, we have been in the fortunate position of having used DDC's components and boards ourselves and have therefore learnt many of the lessons that simplifies and lowers the risk of our customers. Following is a small number of the projects we have worked on.

MIL-STD-1553 Bus Controller

The Australian Customs fleet of Dash-8 aircraft that are used in border control have a new search Radar supplied by Raytheon. This radar requires data from the Inertial Navigation System (INS) to provide the aircraft pitch and roll. This data is provided via the 1553 data bus. Allied Data Systems was contracted by Surveillance Australia, part of the Cobhams group, to provide the 1553 bus controller. The system need to to comply with the commercial aircraft DO160. Allied Data Systems designed a new power supply that not only met the DO160 requirements but also provided the discrete I/O that was also required in the contract for power control and warning indicators. Allied Data Systems design the system using an embedded PC/104plus conductively cooled IDAN computer from RTD Embedded Computers, plus the MIL-STD-1553 PC/104 plus board mounted in an IDAN frame by Allied Data Systems along with the PC/104 power supply designed and also installed into the IDAN frame by Allied Data Systems. The application was developed in C++ to run in Windows XP embedded.

One of the difficult features required was the initialization of the INS. This required the software to mode the INS through its start up using both time and feedback of the INS condition status. The navigational information was supplied through the ARINC 429 bus, however the 1553 bus was required to detect when the INS had received the data and was ready to move to the next mode. This type of process is very unusual in a 1553 requirement and is difficult to program.

A future development to be included is for the bus controller to also obtain data from the other Navigation sources on the aircraft and to be able to supply this data should the INS fail during a mission. This would enable the mission to be completed albeit at a reduced capability. Surveillance Australia flies the 10 customs aircraft for approximately 10 hours per day. The bus controller is therefore required to operate seemlessly during this time which in most cases exceeds what most 1553 systems are required to do in military aircraft.

Gun System Trainer

The Australian Army has introduced a new armed recognizance helicopter supplied by Australian Aerospace. The helicopter is supplied with a front mounted gun that is able to be controlled using the MIL-STD-1553 bus. The Gun is able to move 180 degrees in 2 seconds and is therefore a danger to the maintenance staff also. Allied Data Systems was contracted by Australian Aerospace to supply a MIL-STD-1553 bus controller to operate and move the gun on the maintenance training system designed to train the maintainers. As an example of the danger to maintainers, while loading the helicopter with ammunition, the gun is released and rotated ninety degrees. Once loading has completed the gun will return to its forward position within 1 second. This is sufficient to cause serious injury and possibly death to the maintainer if he is in the way. The system supplied by Allied Data Systems provides an easy to use graphical interface that demonstrates the full extent of movement of the gun, including the speed and fine movement capability. The system is used not only for training the trainer and maintainers but also during demonstrations to non military personnel.

Memory Loader Verifier (MLV)

Allied Data Systems assisted Honeywell in the development of the Memory Loader Verifier for the F111 aircraft. The MLV uses one of DDC's 1553 hybrids to provide the MIL-STD-1553 data bus interface. Allied Data Systems was contracted by Honeywell to build the MLV for them.