Inertial navigation realizes shearer walking track detection, with detection accuracy ≤ ± 30cm/300m working surface;
The built-in memory chip of the system saves the latest data in real time (including the data for a moment before the abnormal power failure), and can automatically recover according to the saved data after the power is on. The automatic recovery is completed within the starting and stabilizing time, and then the coal machine can be moved to maintain the accuracy requirements;
The inertial navigation system is installed on the shearer, and the user coordinates to provide the installation position, power supply, encoder information of the shearer and the Ethernet communication interface with the straightening system. The inertial navigation system can receive the encoder information through the CAN interface, and upload the three-dimensional attitude and shearer walking track (walking distance, measurement offset and height) data to the network link through the network port.

Technical Indicators

Project	Test conditions	Indicators
Attitude accuracy	Self-seeking north	0.1 ° × sec (Lati), 15 min alignment of stationary base;
	Self-seeking north	0.1 ° × sec (Lati), 15 min alignment of stationary base;
	Attitude	0.01°(RMS),
Fiber optical Gyroscope	Measuring range	±400°/s
Fiber optical Gyroscope	Zero bias stability	≤0.02°/h
Quartz flexibility Accelerometer	Measuring range	±20g
Quartz flexibility Accelerometer	Zero bias stability	≤ 50 µg (10 s average)
Communication interface	RS422	3 route(configurable to 232)
	RS232	2 Route
	CAN	2 route CAN
	Network port	One network interface
Electrical characteristics	Voltage	12～36VDC
Electrical characteristics	Power consumption	≤24W
Structural characteristics	Inertial navigation host size	188.8mm × 176.8mm × 117 mm (L × W × H)
Structural characteristics	Weight of the main engine	≤5kg

Product Structure

L188.8mm x W176.8mm x H117m(L x W x H)

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