A method for forming 3D image data representative of the subsurface of infrastructure located in the vicinity of a moving vehicle. The method includes: rotating a directional antenna, mounted to the moving vehicle, about an antenna rotation axis; performing, using the directional antenna whilst it is rotated about the antenna rotation axis, a plurality of collection cycles in which the directional antenna emits RF energy and receives reflected RF energy; collecting, during each of the plurality of collection cycles performed by the directional antenna.

A method for forming 3D image data representative of the subsurface of infrastructure located in the vicinity of a moving vehicle. The method includes: rotating a directional antenna, mounted to the moving vehicle, about an antenna rotation axis; performing, using the directional antenna whilst it is rotated about the antenna rotation axis, a plurality of collection cycles in which the directional antenna emits RF energy and receives reflected RF energy; collecting, during each of the plurality of collection cycles performed by the directional antenna.

A distributed three-dimensional (3D) induced polarization (IP) data acquisition and processing device, including: a transmitter module, a computer and multiple receiver modules, where the transmitter module is configured to transmit a preset current signal to a ground where a region to be measured is located, and record the current signal in real time; the receiver modules each are configured to acquire a voltage signal and an apparent polarizability of the ground where the region to be measured is located, and record the voltage signal and the apparent polarizability in real time; and the computer is configured to acquire the current signal, the voltage signal and the apparent polarizability, respectively process the current signal and the voltage signal to obtain an apparent resistivity of the region to be measured, and analyze, according to the apparent polarizability and the apparent resistivity, a polarizability and a conductivity of the region to be measured.

A distributed three-dimensional (3D) induced polarization (IP) data acquisition and processing device, including: a transmitter module, a computer and multiple receiver modules, where the transmitter module is configured to transmit a preset current signal to a ground where a region to be measured is located, and record the current signal in real time; the receiver modules each are configured to acquire a voltage signal and an apparent polarizability of the ground where the region to be measured is located, and record the voltage signal and the apparent polarizability in real time; and the computer is configured to acquire the current signal, the voltage signal and the apparent polarizability, respectively process the current signal and the voltage signal to obtain an apparent resistivity of the region to be measured, and analyze, according to the apparent polarizability and the apparent resistivity, a polarizability and a conductivity of the region to be measured.

A floor-mounted security device able to test personnel for metal material carried in or at the bottom of their footwear includes an induction module, a pressure sensing module, and an automatic alarm module. The pressure sensing module senses weight and pressure of a person standing, and outputs a trigger signal to the induction module to trigger operation of the induction module. The induction module can detect the presence of a metal mass by the change in a magnetic field, and output a control signal accordingly. The automatic alarm module outputs an alarm when prompted by the control signal.

A floor-mounted security device able to test personnel for metal material carried in or at the bottom of their footwear includes an induction module, a pressure sensing module, and an automatic alarm module. The pressure sensing module senses weight and pressure of a person standing, and outputs a trigger signal to the induction module to trigger operation of the induction module. The induction module can detect the presence of a metal mass by the change in a magnetic field, and output a control signal accordingly. The automatic alarm module outputs an alarm when prompted by the control signal.

A method and system for performing a velocity correction downhole. A method may include disposing a downhole tool into a borehole, taking one or more measurements of the borehole with one or more pads disposed on the downhole tool, creating one or more images from the one or more measurements to form an image log at a depth within the borehole, identifying a mismatch distance between the one or more images in the image log, and correcting the one or more images at the depth within the borehole based at least in part on the mismatch distance.

An in-wall feature detection device of mutual capacitive technology comprises a housing, a detection baseplate, and at least one capacitive sensing baseplate. The detection baseplate is disposed in the housing and has a central processing module and a capacitance value conversion module and is electrically connected to at least one display module. The capacitive sensing baseplate is provided with driving modules and receiving modules, the driving and receiving modules are arranged in a crisscross manner and electrically connected to the capacitance value conversion module. The in-wall feature detection device is capable of using an electric field change between the driving and receiving modules to determine whether there is a blocking object in a wall, and further generating a corresponding light signal through the central processing module to display a shape of the blocking object. Thereby determining a position and the shape of the blocking object during construction.

An in-wall feature detection device of mutual capacitive technology comprises a housing, a detection baseplate, and at least one capacitive sensing baseplate. The detection baseplate is disposed in the housing and has a central processing module and a capacitance value conversion module and is electrically connected to at least one display module. The capacitive sensing baseplate is provided with driving modules and receiving modules, the driving and receiving modules are arranged in a crisscross manner and electrically connected to the capacitance value conversion module. The in-wall feature detection device is capable of using an electric field change between the driving and receiving modules to determine whether there is a blocking object in a wall, and further generating a corresponding light signal through the central processing module to display a shape of the blocking object. Thereby determining a position and the shape of the blocking object during construction.

Methods, apparatus, systems, and computer-readable media are set forth for providing a graphing database for exploration and/or production data, e.g., as used in the oil & gas industry. The graphing database can include multiple different entities that are defined by nodes, node edges, and properties that are generated from information collected by an exploration and/or production system. Entities can be designated as complete when the attribute data associated with those entities satisfy mapping rules for standardizing different types of entities. In this way, end users that access data from the graphing database can receive complete data that is consistently available through a variety of sources.