Mobile stackers are the core equipment for bulk cargo yard operations. It is a machine that combines stacking and reclaiming, that is, a high-efficiency machine for digging and stacking loose materials such as coal, ore, sand and gravel. It is not only suitable for power plants, but also in docks and ports. Most docks and ports that transfer coal and loose materials use bucket wheel mobile stackers.
Each mobile stacker that needs to be positioned needs to be installed with a high-precision positioning and orientation differential receiver, the positioning accuracy is at the centimeter level, and the accurate positioning and direction-finding terminal is used. With the carrier phase difference technology, it can simultaneously receive BDSB1/B2, GPSL1/L2/L5, GLONASSL1/L2/L3, GalileoE1/E5, and supports dual antennas for positioning and direction finding solutions.
Through the dual-antenna positioning and direction-finding GNSS receiver, the position, speed and heading information of the mobile carrier can be accurately judged. The centimeter-level positioning accuracy, the direction-finding accuracy is better than 0.09°, and the data output frequency can reach 50Hz, and the communication interface is rich. , stable performance.
A reference station receiver needs to be installed on a stable roof or bedrock. This reference station differential receiver is used as a reference system of known coordinates to provide corrected differential information for the mobile station receiver, so that the mobile station can achieve centimeter High-precision positioning, differential data can be sent to the mobile station receiver through GPRS transmission mode, radio transmission mode or wired transmission mode.
It should be noted that when using GPRS differential mode, good mobile phone signal coverage is required on site, and a server computer and a fixed IP network need to be prepared; when using radio differential mode, both the mobile station and the reference station need to be equipped with high-power plug-in radios. Base and rover must be visible.