Micro-electromechanical system (MEMS) inertial device
A technology of inertial devices and microcontrollers, which is applied in navigation through speed/acceleration measurement, can solve problems such as complex structure, complex power supply, and inconvenient use, and achieve the effects of small size, single power supply, and fast cross-linking speed
Inactive Publication Date: 2017-06-09
李军岐
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Problems solved by technology
The attitude signal of the carrier relative to the local ground vertical is output through the angle sensor. The disadvantages are: complex structure, large volume, heavy weight, complex power supply, high power consumption, and the attitude output is an analog signal, which is inconvenient to use.
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[0020] Attached below figure 1 An embodiment of the present invention is described.
[0021] The invention discloses a MEMS inertial device, please refer to figure 1 , the MEMS inertial device 100 includes a micromechanical detection device 1, an analog-to-digital conversion device 2, a filtering device 3, a microcontroller 4 and a digital signal processing device 5, and the micromechanical detection device 5 is installed on the carrier, and It is connected with the analog-to-digital conversion device 2 , the filtering device 3 and the digital signal processing device 5 in sequence, and the microcontroller 4 controls the working states of the analog-to-digital conversion device 2 and the filtering device 3 .
[0022] In this embodiment, the micro-mechanical detection device 1 includes three micro-mechanical rate gyroscopes and three micro-mechanical accelerometers, and the three sensitive axes of the three micro-mechanical rate gyroscopes respectively point to three points in...
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Provided is a MEMS inertial device. The MEMS inertial device includes a micro-mechanical detection device, an analog-to-digital conversion device, a filter device, a microcontroller and a digital signal processing device, and the micro-mechanical detection device is installed on the carrier, which is sequentially connected with the analog-to-digital conversion device , a filtering device and a digital signal processing device, the microcontroller controls the working states of the analog-to-digital conversion device and the filtering device, and the present invention also provides a working method of the MEMS inertial device. The MEMS inertial device and its working method provided by the present invention calculate the carrier attitude signal through a digital signal processing device and a microcontroller, output pitch angle, inclination angle and state information, and communicate with other airborne, ship-borne, and vehicle-mounted management and control systems The cross-linking speed is fast and its structure is simple, small in size, easy to install, light in weight, single in power supply, and low in power consumption.
Description
technical field [0001] The invention relates to an inertial device measurement technology, in particular to a MEMS inertial device and a working method thereof. Background technique [0002] The vertical gyroscope is an instrument used to measure the attitude of the carrier, and outputs the attitude signal of the carrier, that is, the pitch angle (θ) signal and the tilt angle (γ) signal, which are applied to aircraft, ships, chariots and other carriers. At present, similar domestic products generally use the stability of the electromechanical gyroscope to measure the θ and γ angles. At the same time, through the vertical and horizontal liquid switches sensitive to the vertical direction, the vertical correction motor and the horizontal correction motor are controlled to make the gyro precess, so as to track the vertical line. . The disadvantages of outputting the attitude signal of the vehicle relative to the local ground vertical line through the angle sensor are: complex ...
Claims
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IPC IPC(8): G01C21/16
CPCG01C21/16
Inventor 李军岐
Owner 李军岐