A Radar System for Safe Distance Monitoring

Abstract

The invention discloses a radar system for monitoring a safe distance, which is suitable for monitoring the safe distance between a single-point mooring tower and a floating production device in an offshore oil field. The system first uses radar ranging technology to identify the straight-line distance and two direction angles from the hull bow of the floating production unit to the single point mooring tower; the second is based on the geometric relationship between the single point mooring tower and the floating production unit , combined with the measured value, calculate the projected distance of the two objects; the third is to compare the projected distance value of the two objects with the pre-calculated safety value of the mooring system's motion range, and automatically judge whether to trigger an alarm, thus forming a suitable for Radar system for monitoring the safe distance between single-point mooring towers and floating production units in offshore oilfields.

Description

technical field [0001] The invention belongs to the technical field of ships and marine engineering, in particular, it is a system for preventing the collapse of a single-point mooring tower or monitoring the abnormal drift of a floating production device. Background technique [0002] Floating production and storage facility (FPSO) is a major equipment for offshore oil and gas development, integrating production, storage and offloading functions. The floating production and oil storage facility itself has no power, and is fixed on the offshore oil field through a single-point mooring tower. The mooring tower can rotate 360° around the single-point mooring tower. At this time, the soft rigid arm is similar to the spring stiffness system. It has a certain degree of freedom in the longitudinal axis direction of the floating production unit hull and can move forward and backward, but the movement range must be strictly limited. , once the movement range is too large, the float...

AI Technical Summary

Problems solved by technology

However, the positioning instrument corresponding to the global positioning monitoring method has relatively high requirements for climate and satellite search, especially in bad weather, it is prone to frame skipping and signal loss; and the method of the inclinometer is to install it on a single-point rigid arm Multiple inclinometers, use the angle and the length of the rigid arm to indirectly calculate the safety distance. The limitation of this method is that multiple inclinometers must work effectively at the same time to calculate the safety distance. The system redundancy is low. If one device does not work, the entire system will not work. , and the superposition of multiple measured values ​​will lead to the increase of the measured value error

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