Multi-position strapping north-seeking system direction effect calibration method

Unmanned ship probability distance map construction method based on navigation radar and photoelectricity

The invention discloses an unmanned ship probability distance map construction method based on a navigation radar and photoelectricity, and the method comprises the steps: carrying out the clustering processing of the echo points of the navigation radar of an unmanned ship, and calculating the central point of each echo set after clustering; performing fuzzy correlation judgment on the clustered echo set, calculating the correlation with the target track, and obtaining the existence probability of the current moment relative to the target track; scheduling the unmanned ship photoelectricity to confirm the clustered echo set by adopting a scheduling strategy based on the existence probability, and updating the existence probability; according to the track position and the existence probability of each target at the current moment, recursively predicting the track position and the existence probability of each target at the time; and calculating a probability distance map of each prediction ...

Leveling compensating mechanism in photoelectric measurement instrument

Leveling compensating mechanism in photoelectric measurement instrument

The invention relates to a leveling-compensating device of an optoelectronic measuring instrument, the device comprises a microprocessor and a level inclinometer; the level inclinometer is arranged on a datum plane of the optoelectronic measuring instrument, a serial port is connected with a serial port of the microprocessor, the distance between a measured object and the optical system principle point is calculated out by the microprocessor according to the inclination angle value output by the level inclinometer, and the measured object height and measured object imaging height. When the datum plane of the optoelectronic measuring instrument inclines within a certain inclination range, the invention compensates the measuring result in real time according to the inclination angle value, thus acquiring accurate measuring value with declining position, and the optoelectronic measuring instrument can be operated without precisely leveling and the leveling procedure is very short, during the ...

Unmanned boat for sea rescue

The invention discloses a sea rescue unmanned ship which comprises an autonomous navigation information system used for guaranteeing the unmanned ship and a rescue system used for being responsible for drowning rescue and sea fire extinguishment. The information system comprises a satellite communication device, a GPS, a navigation radar, an optical detection device, a control device and an inertial navigation device. The control equipment serves as a control center of the unmanned ship and is used for uniformly controlling the ship-mounted equipment; the satellite communication equipment is used for realizing data communication between the shore-based control station and the unmanned ship; the GPS and inertial navigation equipment is used for providing navigation service for the unmanned ship; the navigation radar and the optical detection equipment are used for sensing obstacles around the unmanned ship; the rescue system comprises a life buoy automatic throwing device, a life jacket ...

Meteorological and hydrological information acquisition and application system for unmanned ship

The invention discloses an unmanned ship meteorological and hydrological information acquisition and application system, and the system comprises a meteorological navigation workstation which broadcasts meteorological information in a sea area where an unmanned ship sails; the slipway workstation is used for collecting meteorological and hydrological information; the shore-based workstation is used for optimizing an air route by utilizing the two groups of meteorological and hydrological information and sending an air route instruction of the optimized air route to the slipway workstation through the communication system; and the communication system is used for sending the meteorological and hydrological information acquired by the slipway workstation to the shore-based workstation, and receiving the optimized route data sent by the shore-based workstation at the same time. According to the invention, by combining the meteorological and hydrological information collected by the slipway ...

North seeking device

The invention relates to a north seeking device which is applied to the directional and positioning field, in particular to an inertia north seeking device which uses an accelerometer as an inertia component, which comprises a servo-system, a rotating platform which is driven by a motor, a code device which is arranged on the motor, a measuring accelerometer and an additive accelerometer which are fixed on the rotating platform, and a data gathering and processing system which are connected through a serial port, wherein the measuring accelerometer is arranged on the edge of the rotating platform, a gauging spindle ak1 is vertical to the surface of the platform, an additive accelerometer is arranged in the central portion of the rotating platform, and a gauging spindle ak2 points at the measuring accelerometer along a sagittal diameter of the rotating platform. The invention has the function of automatic levelling compensation, the leveling compensation comprises a compensation of measuring ...

Multi-position strapping north-seeking system direction effect calibration method

The invention belongs to a calibration method of an error which is measured by a multi-position strapdown north seeking device, in particular to a calibration method of orientation effect of a multi-position strapdown north seeking device. A true north prism, two theodolites and a mechanical dividing rotating platform are used as auxiliary testing tools, the multi-position strapdown north seeking device is fixed on the mechanical dividing rotating platform, and is divided according to one circle equipartition point, an angle of a benchmark prism of a strapdown north seeking system and the true north direction is defined through rotating an equipartition angle value at one time by the mechanical rotating platform and through the true north prism system in an initial rotating position of the north seeking system, and then the angle is compared with a north-oriented value which is measured by the strapdown north seeking system, the error is calculated, and an azimuthal effect of a gyroscope ...