A method for discovering an unexploded ordnance in a target area includes: acquiring first feedback signals respectively corresponding to detection regions, the first feedback signals being first induced electromotive force signals; judging whether there is any abnormal signal in the first feedback signals, if there is the abnormal signal, determining the detection region corresponding to the abnormal signal is an abnormal region; acquiring second feedback signals respectively corresponding to detection sites in the abnormal region, the second feedback signals being magnetic field gradient signals; acquiring third feedback signals respectively corresponding to the detection sites, the third feedback signals being second induced electromotive force signals; acquiring location information of the detection sites; obtaining a feature spatial distribution map of the abnormal region; and judging whether there is any unexploded ordnance in the abnormal region according to the feature spatial distribution map.

The present invention relates to a drone for detecting and removing mines laid on or under the ground, and more specifically, to a drone for detecting and removing mines, which can perform tasks that are dangerous for humans to perform themselves on behalf of the humans, and detect and remove mines by being deploying in a dangerous area where war may break out, such as a military boundary line or the like, as a detection drone for detecting mines and a removal drone for removing the mines detected by the detection drone are configured as a pair, and detection and removal of the mines are performed by the drone.

The present invention relates to a drone for detecting and removing mines laid on or under the ground, and more specifically, to a drone for detecting and removing mines, which can perform tasks that are dangerous for humans to perform themselves on behalf of the humans, and detect and remove mines by being deploying in a dangerous area where war may break out, such as a military boundary line or the like, as a detection drone for detecting mines and a removal drone for removing the mines detected by the detection drone are configured as a pair, and detection and removal of the mines are performed by the drone.

A weapons and explosives detector that comprises at least one controlled magnetic field sensor (10) connected to at least one antenna (11); where this antenna (11) is configured as one electrode; and where the controlled electrostatic field sensor (10) is configured to detected a disturbance in the electrostatic field (3) generated by at least one antenna (11) connected with that sensor (10); and where at least one antenna (11) is prepared in a pole (1); or on the perimeter of the vehicle's (2) bodywork; or in an individual combat weapon; where each sensor (10) is connected to at least one control device (100).

A weapons and explosives detector that comprises at least one controlled magnetic field sensor (10) connected to at least one antenna (11); where this antenna (11) is configured as one electrode; and where the controlled electrostatic field sensor (10) is configured to detected a disturbance in the electrostatic field (3) generated by at least one antenna (11) connected with that sensor (10); and where at least one antenna (11) is prepared in a pole (1); or on the perimeter of the vehicle's (2) bodywork; or in an individual combat weapon; where each sensor (10) is connected to at least one control device (100).

A method for discovering an unexploded ordnance in a target area includes: acquiring first feedback signals respectively corresponding to detection regions, the first feedback signals being first induced electromotive force signals; judging whether there is any abnormal signal in the first feedback signals, if there is the abnormal signal, determining the detection region corresponding to the abnormal signal is an abnormal region; acquiring second feedback signals respectively corresponding to detection sites in the abnormal region, the second feedback signals being magnetic field gradient signals; acquiring third feedback signals respectively corresponding to the detection sites, the third feedback signals being second induced electromotive force signals; acquiring location information of the detection sites; obtaining a feature spatial distribution map of the abnormal region; and judging whether there is any unexploded ordnance in the abnormal region according to the feature spatial distribution map.

The invention relates to a dual detector with a detection head (10), comprising:a platform (11) andan induction sensor fastened to the platform (11) and comprising a transmitter coil (12) and a receiver coil (13), the transmitter coil (12) and the receiver coil (13) each forming a loop, the loop of the transmitter coil (12) overlapping the loop of the receiver coil (13) at least partially so as to form a coupling zone (14), the coupling zone (14) being elongated in a first longitudinal direction defining a first axis (X.sub.1), the handle (20) extending in a plan (P.sub.1) normal to the platform (11) and the first axis (X.sub.1) of the coupling zone (14) being transverse to this plane (X.sub.1).

The invention relates to a dual detector with a detection head (10), comprising:a platform (11) andan induction sensor fastened to the platform (11) and comprising a transmitter coil (12) and a receiver coil (13), the transmitter coil (12) and the receiver coil (13) each forming a loop, the loop of the transmitter coil (12) overlapping the loop of the receiver coil (13) at least partially so as to form a coupling zone (14), the coupling zone (14) being elongated in a first longitudinal direction defining a first axis (X.sub.1), the handle (20) extending in a plan (P.sub.1) normal to the platform (11) and the first axis (X.sub.1) of the coupling zone (14) being transverse to this plane (X.sub.1).

A detection method for discovering an unexploded ordnance includes: surrounding a detection region with a transmitting coil and surrounding a detection site with a second receiving coil; conducting the transmitting coil with a second electric current; respectively acquiring a plurality of second feedback signals at a plurality of second feedback time points; partitioning the transmitting coil into a plurality of dipoles, and acquiring a plurality of distance values r respectively between the plurality of dipoles and the detection site; respectively calculating feedback depths according to feedback time periods; respectively calculating apparent resistivity values corresponding to the feedback depths; obtaining an apparent resistivity distribution in depth at the detection site according to the apparent resistivity values and the feedback depths; and judging whether there is any unexploded ordnance at the detection site according to the apparent resistivity distribution in depth.

A detection method for discovering an unexploded ordnance includes: surrounding a detection region with a transmitting coil and surrounding a detection site with a second receiving coil; conducting the transmitting coil with a second electric current; respectively acquiring a plurality of second feedback signals at a plurality of second feedback time points; partitioning the transmitting coil into a plurality of dipoles, and acquiring a plurality of distance values r respectively between the plurality of dipoles and the detection site; respectively calculating feedback depths according to feedback time periods; respectively calculating apparent resistivity values corresponding to the feedback depths; obtaining an apparent resistivity distribution in depth at the detection site according to the apparent resistivity values and the feedback depths; and judging whether there is any unexploded ordnance at the detection site according to the apparent resistivity distribution in depth.