Intelligent probe retracting and releasing pneumatic unmanned survey ship capable of preventing acquatic plants and survey method thereof

Abstract

The invention relates to an intelligent probe retracting and releasing pneumatic unmanned survey ship capable of preventing acquatic plants and a survey method thereof. A probe is mounted on a ship body through a probe position adjusting mechanism, and the probe position adjusting mechanism is used for adjusting the underwater position of the probe. The telescopic electric telescopic rod is adopted to be matched with a pneumatic propelling mode, no equipment protruding out of the bottom of the ship exists in the retracting and releasing operation process, the ship can be directly dragged and pushed into water, people can complete operation without touching water, and the operation convenience is improved. For muddy beaches, reed swings and other water areas, the pneumatic unmanned survey ship can be powered to flush the beaches, and the range capable of being reached by operators is achieved. According to the invention, the sonar probe can deeply penetrate through floating aquatic plants through the retracting and releasing function of the electric telescopic rod, and the accurate survey of the aquatic plant water area can be realized by matching with the survey method provided bythe invention.

Description

technical field [0001] The invention belongs to the field of unmanned equipment, and relates to an unmanned ship, in particular to a wind-driven unmanned survey ship with an intelligent retractable probe for water-proof grass and a survey method thereof. Background technique [0002] At present, most unmanned survey ships on the market use underwater propellers and fixed-position survey sonar probes. Although they can meet the needs of survey operations in clean waters or oceans, they are not suitable for Spring Festival and summer and waters where aquatic plants grow wildly for a long time. Rivers, lakes, reservoirs, and ponds are affected by aquatic plants and debris on the water surface. Propellers, jet pumps, ducted oars, etc. will be entangled by aquatic plants, fishing nets, and debris, making it impossible for unmanned ships to move forward. The protective cover and jet pump are more likely to inhale foreign matter and damage the impeller. However, if the sonar is fi...

AI Technical Summary

Problems solved by technology

[0005]1. Add more protective measures to prevent the unmanned ship from touching the bottom, but it also causes the draft of the whole ship to increase, which is not enough for the survey of shallow water pits and ponds need

[0006]2. Make a smooth transition between the sonar probe and the bottom of the ship, which has little effect on single-beam sonar probes, but for multi-beam and side-scan sonar probes with large beam angles It is impossible to realize, making it integrated into the belly of the ship will reduce the influence of the wave velocity angle on the scanning range

In addition, even if the sonar has a smooth transition, the propeller still needs to be below the waterline of the hull, and there is still a risk of being affected by aquatic plants and debris

In addition, in the densely populated areas of redundant aquatic plants, it is still impossible to break through the influence of floating aquatic plants on the survey accuracy.

[0007]3. Use the jet pump to propel, although it has a certain filtering ability for soft aquatic plants and large floating objects, but it also reduces the water intake. It will block the water inlet of the jet pump. The larger the air filter of the jet pump, the stronger the vacuum suction effect, and the easier it is to suck in debris and damage the impeller of the jet pump.

In addition, the propulsion speed of the jet pump is very fast, even greater than the propulsion speed of 3 m / s, which greatly exceeds the refresh frequency and accuracy of sonar and GPS / RTK (the data update frequency of most sonar will not exceed 1HZ), that is to say The positioning displacement of the ship in 1 second exceeds 3 meters, which affects the horizontal accuracy of the measurement

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