214 results about "Land mine" patented technology

A forwarding looking ground penetrating mine detection apparatus includes a radiation source for irradiating a sample of ground suspected of containing at least one mine with a plurality of frequency swept ground penetrating radar signals. A detector receives target signals backscattered from the ground responsive to the radar signal. The detector includes a time-frequency analyzer which transforms the target signals into a time-frequency image representation (TFR). In a preferred embodiment, the detector can include a wavelet packet transformer (WPT) for extracting time-frequency localized information from the TFR in the form of feature set constructed from a wavelet table. The apparatus can also include a data dimensionality reducer for selecting features to form a feature subset from the feature set, preferably based on reference to a training data set. A multilayer neural network classifier can be based on the feature subset, and be adaptable to the surrounding environment through learning.

A method and system for neutralizing mines has a vehicle carrying fluid connected to a pump and cavitation pressure vessel that creates high pressure fluid. An actuator valve modifies the flow characteristics of the high pressure fluid to be pulsating at selectively different frequencies, pressures, and flow rate. Nozzles on the vehicle jet high pressure fluid therethrough and a framework on the vehicle orients the nozzles to direct the jetted flow of high pressure fluid downward and into ground under a roadway. An abrasive and/or explosive can be added to the high pressure fluid before it reaches the nozzles. The jetted flow from the nozzles can displace ground and exert pressure to detonate and cut mines and neutralize them on and under the roadway. Cavitation can be created in the jetted flow to increase the dynamic force of the jetted flow.

The invention relates to a mine clearance vehicle, comprising a mine clearance arm and a mine detection arm, a rotating disc which is used for supporting the mine clearance arm and the mine detection arm, and a rotating disc base, wherein a front frame and a back frame are arranged in a triangular shape and a hydraulic oil cylinder is fixedly arranged in a hollow cavity surrounded by the front frame and the back frame; the rotating disc base is fixedly arranged at the upper ends of the front frame and the back frame; the bottom end of the rotating disc base is fixedly provided with a rotating disc motor; a rotating shaft of the rotating disc motor stretches out of the upper end of the rotating disc base; the rotating disc is arranged at the upper end part of the rotating shaft of the rotating disc motor; the upper end face of the rotating disc is provided with the mine clearance arm and the mine detection arm; the mine clearance arm is composed of a front mine clearance arm and a back mine clearance arm; a grabbing sheet is arranged at the front part of the front mine clearance arm and a pinching sheet is formed by the grabbing sheet and the front mine clearance arm; the mine detection arm is composed of a front mine detection arm and a back mine detection arm; a mine clearance instrument is movably arranged at the front end of the mine detection arm; and a cross beam is arranged at the lower end of the front frame and belt pulley groups are arranged among two sides of the cross beam and the back frame. The mine clearance vehicle disclosed by the invention has the advantages of simplicity in whole structure, high automation degree and convenience for operation, and can rapidly detect mines and remove the mines.