A conductive slip ring online parallel testing system and testing method
A technology of conductive slip ring and test system, which is applied in the direction of measuring electricity, measuring device, measuring electrical variables, etc. Effect
Active Publication Date: 2021-12-31
TIANJIN NAVIGATION INSTR RES INST
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[0004] However, the working principle of the inertial system determines that the conductive slip ring has been in a state of wear for a long time since it was installed. When the conductive slip ring fails due to excessive wear, the signal path will be disconnected, and the inertial system will fail.
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[0036] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.
[0037] like figure 1 As shown, an online parallel test system for conductive slip rings includes a work switching module, a high-speed clock frequency multiplication module, a test signal generation module, a test signal feedback module, a test diagnosis module and a test information communication module. Using the existing DSP and FPGA hardware and interface devices of the navigation computer, the DSP completes work mode switching, test signal diagnosis and test information communication. Utilizing the high-speed parallel processing capability of FPGA, functions such as high-speed clock frequency multiplication generation, test signal generation, and test signal feedback of several slip ring channels can be completed in parallel.
[0038] ...
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The invention relates to an online parallel test system for conductive slip rings, which includes a work switching module, a high-speed clock frequency multiplication module, a test signal generation module, a test signal feedback module, a test diagnosis module and a test information communication module; the work switching module controls the high-speed clock The initialization of the frequency multiplier module, the clock signal output by the high-speed clock frequency multiplier module is used as the clock reference of the test signal generation module and the test diagnosis module, the test signal generation module generates the test signal input to the conductive slip ring, and the test signal feedback module receives the output of the conductive slip ring The test signal, the test diagnosis module records the communication test fault information, and the test information communication module transmits the diagnosis information. The invention is suitable for online parallel testing of conductive slip rings, realizes the performance test of various conductive slip rings, improves the test efficiency of the conductive slip rings, and can improve the accuracy and correct rate of fault diagnosis of the conductive slip rings.
Description
technical field [0001] The invention belongs to the technical field of conductive slip ring testing for a ship navigation system, in particular to an online parallel testing system and a testing method for a conductive slip ring. Background technique [0002] Inertial systems are widely used in sea, land, air, sky, police and many other fields. With the continuous development of inertial technology, the accuracy of inertial systems is constantly improving. The rotary mechanism is an important part of the platform type, rotary modulation type and hybrid inertial system, and the conductive slip ring is also widely used in the inertial system along with the rotary mechanism. [0003] The conductive slip ring is mainly composed of brushes, slip rings, miniature bearings and some related structural parts. It is suitable for uninterrupted electrical signals between the fixed mechanism and the rotating mechanism of the equipment under the condition of 360° unlimited free rotation. ...
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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 邰洋赵政张新远刘嘉倬王磊
Owner TIANJIN NAVIGATION INSTR RES INST