Abstract: An autonomous driving control system for a vehicle that travels on a road provided with a marker that emits a steady magnetic field or a quasi-steady magnetic field includes: a magnetic sensor array that is equipped on the vehicle and senses magnetism; and an information processing circuit that generates an image showing a magnetic field in a region closer to the marker than the magnetic sensor array, according to a sensing result of the magnetism and a fundamental equation of the steady magnetic field and the quasi-steady magnetic field, and controls travel of the vehicle according to the image.

Abstract: A detection device includes: a generator that generates a plurality of waves; a plurality of transmitters that emit the plurality of waves, the plurality of waves each being emitted by a corresponding one of the plurality of transmitters; a plurality of receivers each of which receives one or more of the plurality of waves as a composite wave; a deriver that derives individual data for each combination of one of the plurality of transmitters and one of the plurality of receivers by deriving, from received data of each of the plurality of receivers, the individual data corresponding to each of the plurality of transmitters; and a detector that detects an object that affects at least one of the plurality of waves, according to the individual data.

Abstract: A measurement apparatus (10) is an apparatus that measures a secondary battery (20). The measurement apparatus (10) includes a voltage application unit (140), a switching unit (120), a measurement unit (160), and a processing unit (180). The voltage application unit (140) applies a predetermined voltage determined based on an open circuit voltage of the secondary battery (20), to the secondary battery (20). The switching unit (120) switches between a first state in which the predetermined voltage is applied to the secondary battery (20) and a second state in which the secondary battery is open. The measurement unit (160) measures a transient response of an external magnetic field of the secondary battery (20) when switching the first state to the second state. The processing unit (180) generates information on an inside of the secondary battery (20) by using a measurement result of the measurement unit (160).

Abstract: A scattering tomography device includes: a transmitting antenna that transmits radio waves into an interior of an object; a receiving antenna that receives, outside the object, scattered waves of the radio waves; and an information processing circuit that obtains measurement results over a plurality of days and generates a reconstructed image showing a persistent element inside the object based on the measurement results. The information processing circuit calculates a scattering field function for each of the measurement results, calculates a visualization function for each of the measurement results, generates intermediate images for the measurement results, and generates a reconstructed image by calculating a minimum value of an image intensity at each position in the intermediate images using a logical conjunction.

Abstract: An imaging device includes a transmitter row of transmitters that are aligned in a straight line and transmit a wave to a region, a receiver row of receivers provided at an interval from the transmitter row and alighted in a straight line parallel to the line of transmitters, and receiving the wave from the region, and an information processing circuit that derives an imaging function based on measurement data and a distance and using the imaging function to image the structure of a scatterer included in an object present in the region, the imaging function corresponding to a scattering field function relating to scattering of the wave, the measurement data being obtained by all or some combinations of the transmitters and the receivers, the distance being a distance between the straight line along which the transmitters are aligned and the different straight line along which the receivers are aligned.

Abstract: An autonomous driving control system for a vehicle that travels on a road provided with a marker that emits a steady magnetic field or a quasi-steady magnetic field includes: a magnetic sensor array that is equipped on the vehicle and senses magnetism; and an information processing circuit that generates an image showing a magnetic field in a region closer to the marker than the magnetic sensor array, according to a sensing result of the magnetism and a fundamental equation of the steady magnetic field and the quasi-steady magnetic field, and controls travel of the vehicle according to the image.

Abstract: An air purification system includes a linear electrode that generates electromagnetic resonance; an electric field probe that measures the electric field intensity; and a controller that controls power supplied to the linear electrode. The controller adjusts the frequency of the power supplied to the linear electrode and the position at which the power is supplied to the linear electrode, to maximize an output value of a signal indicating the electric field intensity. Feedback control is performed to make the amount of ozone always constant, by monitoring the amount of ozone generated and adjusting the amplitude modulation of the power supplied, so that ozone necessary for decomposing viruses is generated but harmful nitrogen oxides are not generated as a result of applying, to gas molecules contained in influent gas, an energy that is at least the dissociation energy of oxygen molecules and no greater than the dissociation energy of nitrogen molecules.

Abstract: A scattering tomography device includes: a transmitting antenna element that transmits radio waves into an object from outside; a receiving antenna element that receives, outside the object, scattered waves of the radio waves transmitted into the object; and an information processing circuit that generates an image of the interior of the object using measurement data indicating the scattered waves received by the receiving antenna element. The information processing circuit: derives, using the measurement data, a relational expression that satisfies an equation whose solution is a scattering field function; derives, using the relational expression, an image function that is for generating the image and includes one or more parameters indicating a correspondence between a change in frequency of the radio waves and a change in a dielectric constant of the object in accordance with Debye relaxation; and generates the image using the image function.

Abstract: An external field response distribution visualization device includes: an induction circuit that induces a first field component from each of induction positions; a sensor that senses a field strength at sensing positions for each of the induction positions; and an information processing circuit that generates an image showing an external field response distribution. The information processing circuit: calculates, using the sensing result as a boundary condition, an induction position dependent field function that takes an induction and sensing positions as inputs and outputs the field strength; calculates an imaging function that takes an imaging target position as an input and outputs an image intensity, and is defined based on the strength output from the induction position dependent field function in response to inputting the imaging target position; and generates the image based on the imaging function.

Abstract: The inspecting device is an inspecting device that generates a spatial distribution image of an electric field, the inspecting device including: an electric field obtainer that measures the spatial distribution of the electric field at at least one measurement position determined relative to a scanning position, outside an object that emits the electric field; a scanner, by scanning the electric field obtainer, that obtains a measurement result of the spatial distribution of the electric field at a plurality of measurement positions determined relative to a plurality of scanning positions; and a calculator that calculates the spatial distribution of the electric field in a region including a surface of the object using the measurement result of the spatial distribution of the electric field as a boundary condition, and generates the spatial distribution image that shows the spatial distribution that has been calculated.

Abstract: An imaging device includes a transmitter row of transmitters that are aligned in a straight line and transmit a wave to a region, a receiver row of receivers provided at an interval from the transmitter row and alighted in a straight line parallel to the line of transmitters, and receiving the wave from the region, and an information processing circuit that derives an imaging function based on measurement data and a distance and using the imaging function to image the structure of a scatterer included in an object present in the region, the imaging function corresponding to a scattering field function relating to scattering of the wave, the measurement data being obtained by all or some combinations of the transmitters and the receivers, the distance being a distance between the straight line along which the transmitters are aligned and the different straight line along which the receivers are aligned.

Abstract: An imaging device includes: a plurality of transmitters which are disposed on both sides of a region and transmit waves to the region; a plurality of receivers which are disposed on the both sides and receive the waves from the region; and an information processing circuit which derives an imaging function corresponding to a scattering field function related to scattering of the wave according to a correspondence between (i) measurement data obtained by the plurality of transmitters and the plurality of receivers and (ii) a composition of a plurality of functions related to multiple first-order scattering forming multiple scattering, and visualizes a three-dimensional structure of a scatterer included in an object in the region, using the imaging function.

Abstract: A magnetic response distribution visualization device includes: an induction circuit that induces a magnetic field component from outside a moving object; a sensor that senses a strength and a phase of the magnetic field at a plurality of points in times outside the moving object; and an information processing circuit that, based on a sensing result of the strength and the phase, a moving speed of the moving object, and a fundamental equation for magnetic fields, calculates a strength and a phase of the magnetic field at a vicinal position closer to the moving object than the sensor, and generates, based on a calculation result of the strength and the phase, a magnetic response distribution image for security inspection that shows a distribution of a response of the moving object to the magnetic field component induced by the induction circuit.

Abstract: A storage battery inspection device includes: an energy storage control circuit that applies an alternating current to a storage battery; a magnetic sensor that senses a magnetic field component outside the storage battery and outputs a magnetic sensor signal indicating the sensed component; a canceling coil that generates a magnetic field component based on an input current to cancel out a magnetic field component generated by magnetization of a magnetic material in the storage battery; a feedback circuit that obtains, from the magnetic sensor signal, a low-frequency signal indicating a magnetic field component having a lower frequency than the alternating current, and applies the input current to the canceling coil based on the low-frequency signal; and a detection circuit that obtains, from the magnetic sensor signal, a detection signal indicating a magnetic field component having the same frequency as the alternating current.

Abstract: An air purification system includes a linear electrode that generates electromagnetic resonance; an electric field probe that measures the electric field intensity; and a controller that controls power supplied to the linear electrode. The controller adjusts the frequency of the power supplied to the linear electrode and the position at which the power is supplied to the linear electrode, to maximize an output value of a signal indicating the electric field intensity. Feedback control is performed to make the amount of ozone always constant, by monitoring the amount of ozone generated and adjusting the amplitude modulation of the power supplied, so that ozone necessary for decomposing viruses is generated but harmful nitrogen oxides are not generated as a result of applying, to gas molecules contained in influent gas, an energy that is at least the dissociation energy of oxygen molecules and no greater than the dissociation energy of nitrogen molecules.

Abstract: A magnetic response distribution visualization device includes: an induction circuit that induces a magnetic field component from outside a moving object; a sensor that senses a strength and a phase of the magnetic field at a plurality of points in times outside the moving object; and an information processing circuit that, based on a sensing result of the strength and the phase, a moving speed of the moving object, and a fundamental equation for magnetic fields, calculates a strength and a phase of the magnetic field at a vicinal position closer to the moving object than the sensor, and generates, based on a calculation result of the strength and the phase, a magnetic response distribution image for security inspection that shows a distribution of a response of the moving object to the magnetic field component induced by the induction circuit.

Abstract: An external field response distribution visualization device includes: an induction circuit that induces a first field component from each of induction positions; a sensor that senses a field strength at sensing positions for each of the induction positions; and an information processing circuit that generates an image showing an external field response distribution. The information processing circuit: calculates, using the sensing result as a boundary condition, an induction position dependent field function that takes an induction and sensing positions as inputs and outputs the field strength; calculates an imaging function that takes an imaging target position as an input and outputs an image intensity, and is defined based on the strength output from the induction position dependent field function in response to inputting the imaging target position; and generates the image based on the imaging function.

Abstract: A storage battery inspection device includes: an energy storage control circuit that applies an alternating current to a storage battery; a magnetic sensor that senses a magnetic field component outside the storage battery and outputs a magnetic sensor signal indicating the sensed component; a canceling coil that generates a magnetic field component based on an input current to cancel out a magnetic field component generated by magnetization of a magnetic material in the storage battery; a feedback circuit that obtains, from the magnetic sensor signal, a low-frequency signal indicating a magnetic field component having a lower frequency than the alternating current, and applies the input current to the canceling coil based on the low-frequency signal; and a detection circuit that obtains, from the magnetic sensor signal, a detection signal indicating a magnetic field component having the same frequency as the alternating current.

Abstract: A scattering tomography device includes: a transmitting antenna that transmits radio waves into an interior of an object; a receiving antenna that receives, outside the object, scattered waves of the radio waves; and an information processing circuit that obtains measurement results over a plurality of days and generates a reconstructed image showing a persistent element inside the object based on the measurement results. The information processing circuit calculates a scattering field function for each of the measurement results, calculates a visualization function for each of the measurement results, generates intermediate images for the measurement results, and generates a reconstructed image by calculating a minimum value of an image intensity at each position in the intermediate images using a logical conjunction.

Abstract: A scattering tomography device includes: a transmitting antenna element that transmits radio waves into an object from outside; a receiving antenna element that receives, outside the object, scattered waves of the radio waves transmitted into the object; and an information processing circuit that generates an image of the interior of the object using measurement data indicating the scattered waves received by the receiving antenna element. The information processing circuit: derives, using the measurement data, a relational expression that satisfies an equation whose solution is a scattering field function; derives, using the relational expression, an image function that is for generating the image and includes one or more parameters indicating a correspondence between a change in frequency of the radio waves and a change in a dielectric constant of the object in accordance with Debye relaxation; and generates the image using the image function.