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A hierarchical test routing device and control method for avionics equipment

A device testing and hierarchical technology, applied in the testing field, can solve problems such as inconvenient connection of the tested avionics equipment, inconvenient maintenance of the whole machine, affecting test efficiency, etc., so as to improve test efficiency, be more versatile and universal convenient effect

Inactive Publication Date: 2018-05-11
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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  • Abstract
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Problems solved by technology

[0004] The existing switch matrix device uses a large number of microwave switch modules, relays, signal conditioning microwave components and semi-steel cables, etc., including low-frequency test interfaces and radio frequency test interfaces are all concentrated together, there are many test interfaces, and the interface density is very large, which is inconvenient The connection with the avionics device under test affects the test efficiency
Moreover, since there are many microwave parts used inside the device, all the parts are gathered together, which is inconvenient for the maintenance of the whole machine.
Due to the rapid development of avionics equipment, the test route of avionics equipment changes with the test method and test process of the new generation of equipment, and the design of existing devices has the problem of difficulty in upgrading

Method used

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  • A hierarchical test routing device and control method for avionics equipment

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Such as figure 1 As shown, a hierarchical test routing device for avionics equipment, the switch matrix device adopts a hierarchical master-slave separation structure, which is divided into 3 independent desktop devices, master control machine, slave extension 1 and slave extension 2. The main control unit is the control core of the test routing of avionics equipment, providing the low-frequency signal routing function, the control signal and power supply required by the microwave switch module and other microwave components. Slave extension 1 and slave extension 2 are slave devices. Microwave switch module arrays and other microwave components are installed in the extensions, which have routing and signal conditioning functions.

[0025] The microprocessor in the main control computer provides the required data bus and address bus and other con...

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Abstract

The invention discloses a hierarchical test routing device and control method for avionics equipment, including a main control unit and at least one slave extension unit, the main control unit includes a low-frequency interface board, and the main control unit provides the low-frequency interface board required control signal; the extension includes a microwave switch module array and other microwave components, and the main control unit provides control signals and power supplies required by the microwave switch module and other microwave components; the main control unit and the extension are respectively arranged on different circuit boards, The main control machine does not provide a switch drive circuit, and the interface board of the extension is provided with a switch drive circuit. The hierarchical master-slave separation structure facilitates the connection with the tested avionics equipment and the maintenance of the whole machine, reduces the interference problem during the test process, and improves the test efficiency. The design of the drive circuit makes the device more versatile and facilitates the upgrade of the device.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a hierarchical test routing device and control method for avionics equipment. Background technique [0002] Airborne avionics equipment includes communication, navigation, identification equipment, etc., which complete the communication, navigation, identification processing and control between the aircraft and the ground. Airborne communication navigation identification equipment is composed of functional units such as ultrashort wave, short wave communication, altimeter, compass beacon, TACAN precision ranging, microwave landing, identification friend or foe, and air traffic control response. There are many test parameters and complex test procedures. Low frequency microwave signals Mixed, large and small power signals coexist, the test is very difficult. It has more than one hundred automatic test routing channels and nearly one hundred test interfaces. The test routing is co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042G01R31/00
CPCG01R31/00G05B19/042
Inventor 何庆夏磊张海庆王盘伟张雷赵杰
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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