SKM-4DX communication satellite inertial navigation module according to the Kalman filter optimization algorithm combined with two kinds of navigation optimization algorithm, the communication satellite navigation precision level to carry out intelligent identification, if the communication satellite navigation precision is good, then carry out the composition of the navigation; once found that the communication satellite navigation signals are very poor or even lost signals, then carry out the pure inertial navigation, so, the application of SKM-4DX navigation module can Therefore, the application of SKM-4DX navigation module can complete the independent conversion of composition navigation and pure inertial navigation.
Communication satellite inertial navigation module The inertial navigation module features.
Communication satellite inertial navigation bi-directional composition navigation accurate positioning;
Positioning system technical: BDS GPS system synergistic precise positioning;
Low power consumption, small specifications;
No need for odometer or external rate signal;
No stringent installation requirements, installation is more flexible;
Zero speed detection and zero speed adjustment technology;
Highly sensitive design solutions;
Applicable AGNSS auxiliary analysis technology, rapid and accurate positioning;
Specification: 16.9mm×12mm, ** D surface paste sealing;
Industrial production-grade specifications, can better solve the stringent office environment regulations.
SKM-4DX pin definition: communication satellite Inertial Navigation Module pin assignment and definition of this inertial navigation module advantages:
(1) Solve odometer
The basic car navigation system software usually uses the odometer and cell phone gyroscope DR plan to complete the high precision navigation and accurate positioning in the complicated natural environment of the car, and the odometer signal is more complicated to connect for many automobile reloading and sales market, and it involves the hidden danger of automobile safety. Through more than ten years of product research and development, in the GNSS system software signal precision declines and even lost communication satellite signals, SKM-4DX inertial navigation system software completely solved the dependence on the odometer, just using pure inertial navigation technology, can also be carried out independently in a long period of time on the automobile medium positioning navigation, speed limit and posture measurement, and the market is currently related to the comparison of the product, the characteristics of a great deal of improvement. The characteristics have been greatly improved compared with the related products in the market.
(2) Vehicle state angle
SKM-4DX inertial navigation module uses many years of scientific research experience on MEMS inertial force components, according to the adaptive filtering optimization algorithm to complete the filtering of the cell phone gyroscope drift and instantaneous speed vibration signals, and furthermore can be obtained from the state of high-precision information content, which in turn can meet the slope inspection and other types of requirements for vehicle positioning and navigation applications. Vehicle elevation angle, elevation angle can be achieved 30 degrees.
(3) 6-axis instantaneous speed sensor
The hardware environment of the inertial navigation system software is BMI160, which integrates the acceleration sensor with the gyroscope of the cell phone, and has good frequency stability, which prompts the parts to give accurate and reliable measurement results.
This inertial navigation module is utilized:
(1) Used in the underground bus station accurate positioning and navigation, for example, in Shenzhen Futian District hub station, the use of this communication satellite inertial navigation module in the bus, the bus can be in the underground accurate bus stops;
(2) Give rate correction inside the tunnel construction to prevent abnormal speeding when just out of the tunnel construction;
(3) Enhance the accurate positioning of underground parking lot, fusion of underground parking lot topographic map, you can accurately find the car.
(4) High-grade front-loading cars are gradually pursuing perfect and more precise positioning, especially in the big cities, such as the Grand Canyon and overpasses.
(5) Weak signal scenarios such as under the big city canyons and overpasses.
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