Military standard (MIL-STD-1760) interface bridge

Patent metadata

Field	Value
Publication number	US-9875200-B2
Application number	US-201314034294-A
Country	US
Kind code	B2
Filing date	Sep 23, 2013
Priority date	Sep 23, 2013
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

A military standard-1760 (MIL-STD-1760) interface bridge can include a housing, a translator device, and an energy storage device. The housing can include a MIL-STD-1760 connector on a first end and a weapon side connector on a second end. The translator device can translate a MIL-STD-1553B remote terminal (RT) protocol to a weapon side signaling protocol and translate the weapon side signaling protocol to the MIL-STD-1553B RT protocol. The energy storage device can be coupled to the operating power of the MIL-STD-1760 connector and can be configured to provide power to the translator device for a duration after the power from the MIL-STD-1760 connector is disconnected.

First claim

What is claimed is:

1. A military standard-1760 (MIL-STD-1760) interface bridge comprising:
a housing including an aircraft platform side MIL-STD-1760 connector on a first end and a weapon side connector on a second end;
a translator device to translate a MIL-STD-1553 remote terminal (RT) protocol to a weapon side signaling protocol and translate the weapon side signaling protocol to the MIL-STD-1553 RT protocol, wherein the weapon side connector uses an aircraft store-5725 (AS-5725) connector and the weapon side signaling protocol uses an Enhanced Bit Rate-1553 (EBR-1553) bus controller (BC) protocol; and
an energy storage device coupled to operating power of the MIL-STD-1760connector that provides power to the translator device for a duration after power to the MIL-STD-1760 connector is removed, wherein the translator device is operable to receive power from an aircraft platform through the MIL-STD-1760 connector prior to a launch sequence, and wherein the power from the aircraft platform is transferrable through the interface bridge to the aircraft store 5725 connector.

2. The MIL-STD-1760 interface bridge of claim 1 , wherein the translator device further comprises:
a MIL-STD-1553 RT protocol module to buffer at least a portion of the signaling from the MIL-STD-1760 connector or control at least a portion of the signaling to the MIL-STD-1760 connector;
an EBR-1553 BC protocol module to buffer at least a portion of the signaling from the AS-5725 connector or control at least a portion of the signaling to the AS-5725connector; and
a processor to translate the MIL-STD-1553 RT protocol to the EBR-1553 BC protocol, and translate the EBR-1553 BC protocol to the MIL-STD-1553 RT protocol.

3. The MIL-STD-1760 interface bridge of claim 2 , wherein the translator device further comprises:
memory shared between the MIL-STD-1553 RT protocol module and the EBR-1553 BC protocol module; and
an arbitration or access logic to provide a prioritization scheme between the MIL-STD-1553 RT protocol module, EBR-1553 BC protocol module, and the processor to access the memory without dropping messages.

4. The MIL-STD-1760 interface bridge of claim 1 , wherein the translator device updates an RT address field of a BC command word with an RT address equal to zero.

5. The MIL-STD-1760 interface bridge of claim 1 , wherein the translator device selectively modifies message content of a message and recalculates a checksum for the message before the message is retransmitted by a weapon side BC using the EBR-1553 BC protocol.

6. The MIL-STD-1760 interface bridge of claim 1 , further comprising:
an isolation transformer and an internal power supply with an approximately 3.3 volt (V), an approximately 5V, or a voltage less than 10 V from a voltage of the MIL-STD-1760 connector;
a programming interface to the translator device to program and debug the translator device and externally access the translator device;
a RT address interface to pull up the voltage of RT address and RT address inputs relative to a RT address return; or
an auto-boot initialization module to store and load firmware code into the translator device.

7. The MIL-STD-1760 interface bridge of claim 1 , further comprising:
a serial interface coupled to the housing and the translator device; and
a computer readable storage medium for preloading of the MIL-STD-1760 interface bridge with data files for transfer to the weapon side connector during operation, wherein the computer readable storage medium is externally accessible via the serial interface.

8. The MIL-STD-1760 interface bridge of claim 1 , wherein at least a portion of the signaling from the MIL-STD-1760 connector passes through to the weapon side connector or at least a portion of the signaling from the weapon side connector passes through to the MIL-STD-1760 connector.

9. The MIL-STD-1760 interface bridge of claim 1 , wherein the energy storage device includes a battery or capacitor and provides power to the translator device for at least 500 milliseconds (ms) after power is removed from the MIL-STD-1760 connector.

10. The MIL-STD-1760 interface bridge of claim 1 , wherein translator device provides periodic polling of transmit messages (‘T’ messages) generated via the weapon side signaling protocol to maintain a system end-to-end response time requirement of less than 40 milliseconds (ms).

11. The MIL-STD-1760 interface bridge of claim 1 , wherein translator device:
modifies a time stamping of a specified mode control (MC) messages; or
maintains a timing requirement of a specified receive message (‘R’ message) generated via the MIL-STD-1553 RT protocol.

Assignees

• Raytheon Co

Inventors

• Huber Charles F
• Hammel Bradley Bomar
• Berringer Jeffrey A

Classifications

• G06F13/387 Primary

  for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system · CPC title

• G06F13/16

  for access to memory bus (G06F13/28 takes precedence) · CPC title