Monitoring apparatus suitable for interferometric fiber optic gyroscope
A technology of fiber optic gyroscope and monitoring device, which is applied to measurement devices, Sagnac effect gyroscopes, instruments, etc., can solve the problem of unable to realize the self-recovery of fiber optic gyroscope, so as to improve working performance, increase reliability, and avoid lethality damage effect
Inactive Publication Date: 2010-04-14
BEIHANG UNIV
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Problems solved by technology
However, most of the currently used gyroscopes only protect the susceptible parts inside the gyroscope, and do not adopt any external monitoring measures; although this method can simplify the technical indicators such as the size and weight of the entire gyroscope, it is still difficult to control in some harsh environments. However, it is impossible to realize the self-recovery of the fiber optic gyroscope from failure or abnormal working conditions
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[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] See figure 1 As shown, the present invention is a monitoring device suitable for interference type fiber optic gyroscope, the monitoring device consists of a first processor D4, a second processor D8, a level conversion circuit of the first processor, an electric circuit of the second processor Level conversion circuit, and the first processor power control switch D9, the gyro detection circuit power switch D10 and the auxiliary light source power control switch D11, the first processor D4 receives the serial port data output by the gyro, PIN_1 signal, PIN_2 signal, light source temperature control Fault0_1 signal, light source temperature control Fault1_1 signal, light source temperature control Fault0_2 signal, light source temperature control Fault1_2 signal, power supply 3V3_DP1 signal, the level conversion circuit of the first processor receives t...
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This invention relates to a kind of monitoring device apply to interference type fiber-optic gyro. The first processor D4 receive gyro output serial port data, pin_1 signal, pin_2 signal, light-sourcetemperature-control fault0_1 signal, light-source temperature-control fault1_1 signal, light-source temperature-control fault0_2 signal, light-source temperature-control fault1_2 signal, power 3V3_DP1signal. The first processor's level conversion circuit receives data information output by first processor D4; the second processor D8 respectively output power supply control signal to power supplyc ontrol switch D10 of gyro sensing circuit and secondary light source. The invention adopts two CPU redundant back-up designed monitoring device, the first CPU design to receive interference type fiber-optic gyro output parameter, through parcel then output; the second one CPU design to monitor interference type fiber-optic gyro's working state, at same time monitor the working state of first CPU, also can be used as communication backup of first CPU. Such monitoring device could real-time handle different kinds of working order of triaxiality fiber-optic gyro, and according to triaxiality fiber-optic gyro defined malfunction to process relative disposing, advance the reliability of monitoring device.
Description
technical field [0001] The present invention relates to a kind of monitoring device, more particularly, refers to a kind of monitoring device that adopts dual CPU redundant backup design, the first CPU is used to receive the parameter that the interference type optical fiber gyroscope outputs, outputs after packing; The first CPU is used to monitor the working status of the interferometric fiber optic gyroscope, and also monitor the working status of the first CPU, which can also be used as the communication backup of the first CPU. Background technique [0002] Due to the incomparable advantages of mechanical gyroscopes and laser gyroscopes, and with the maturity of the production process, the scope of application of fiber optic gyroscopes continues to expand; in some specific application fields, the use of fiber optic gyroscopes is relatively harsh such as electromagnetic interference. , ray radiation, vacuum insulation, etc.; when the fiber optic gyroscope works in these ...
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IPC IPC(8): G01C19/72G01C25/00
Inventor 宋凝芳李敏田海亭吕峰建
Owner BEIHANG UNIV