Abstract: A crane comprising a traveling body and a turning body turnably supported by the traveling body, the crane performing power feeding and communication between the traveling body and the turning body. The traveling body is provided with: a power supply; a lower controller which controls the traveling body and transmits power to the devices included in the traveling body; and a lower transmitter-receiver which wirelessly transmits and receives the power and data signal from the power supply. The turning body is provided with: an upper controller which controls the turning body and transmits power to the devices included in the turning body; and an upper transmitter-receiver which wirelessly transmits and receives the power and data signal to and from the lower transmitter-receiver.

Abstract: Provided is an assembly method using an assembly tool used when a component is assembled to each of a plurality of connection ports to provided at an upper surface of a fuel-cell stack and communicating with a plurality of communication holes. The assembly tool includes a base portion positioned on the upper surface of the fuel-cell stack and a plurality of covering portions covering the plurality of connection ports. Each of the plurality of covering portions is, relative to the base portion, provided movably between a covering position for covering a corresponding one of the connection ports and a non-covering position accessible to a corresponding one of the connection ports.

Abstract: A flood detection device includes a detection result acquisition section, a weather information acquisition section and an identification section. The detection result acquisition section acquires a detection result that, on the basis of a plurality of kinds of running state data relating to running of a vehicle, detects flooding of a road on which the vehicle is running. The weather information acquisition section acquires weather information including at least one of rainfall information representing a measured rainfall amount in a region in which the vehicle is running or rainfall estimation information representing an estimated rainfall amount. The identification section uses the respective acquisition results of the detection result acquisition section and the weather information acquisition section to identify flooding of the road.

Abstract: A flood sensing device includes: an acquiring section that acquires plural types of traveling state data relating to traveling of a vehicle; and a sensing section that senses flooding of a road on which the vehicle travels by using (a) a physical quantity that is estimated on the basis of (i) a vehicle behavior model, which is configured by driving force of the vehicle and traveling resistance that includes air resistance applied to the vehicle, slope resistance applied to the vehicle and rolling resistance applied to the vehicle, and which determines the physical quantity that varies due to the vehicle traveling, and (ii) the plural types of traveling state data of the present time that are acquired by the acquiring section, and (b) the physical quantity that is obtained from the traveling state data of the present time that is acquired by the acquiring section.

Abstract: A flood detection device and method that acquires meteorological data; acquires traffic volume data representing vehicle traffic volume; and determines that an area, in which a vehicle traffic volume during or after rain is less than or equal to a predetermined number of vehicles, is flooded based on the meteorological data and the traffic volume data, when a probability, that the vehicle traffic volume in a normal time is less than or equal to the predetermined number of vehicles, is less than a predetermined value, the normal time being a state in which a rainfall amount is less than a predetermined value.

Abstract: A flood display device includes: a processor with hardware, the processor being provided to: acquire flood point information in which a detection result of a flood point of a road and a classification of a flood situation at the flood point determined based on traveling state data of a vehicle traveling at the detected flood point are associated with each other based on the traveling state data related to the traveling of the vehicle, generate flood detection information in which a display mode of the detection result is changed based on the classification of the flood situation as flood detection information obtained by superimposing the detection result on a position on a map corresponding to the flood point based on the flood point information, and output the flood detection information to a display.

Abstract: Provided is an assembly method using an assembly tool used when a component is assembled to each of a plurality of connection ports to provided at an upper surface of a fuel-cell stack and communicating with a plurality of communication holes. The assembly tool includes a base portion positioned on the upper surface of the fuel-cell stack and a plurality of covering portions covering the plurality of connection ports. Each of the plurality of covering portions is, relative to the base portion, provided movably between a covering position for covering a corresponding one of the connection ports and a non-covering position accessible to a corresponding one of the connection ports.

Abstract: A crane comprising a traveling body and a turning body turnably supported by the traveling body, the crane performing power feeding and communication between the traveling body and the turning body. The traveling body is provided with: a power supply; a lower controller which controls the traveling body and transmits power to the devices included in the traveling body; and a lower transmitter-receiver which wirelessly transmits and receives the power and data signal from the power supply. The turning body is provided with: an upper controller which controls the turning body and transmits power to the devices included in the turning body; and an upper transmitter-receiver which wirelessly transmits and receives the power and data signal to and from the lower transmitter-receiver.

Abstract: A flood detection device and method that acquires meteorological data; acquires traffic volume data representing vehicle traffic volume; and determines that an area, in which a vehicle traffic volume during or after rain is less than or equal to a predetermined number of vehicles, is flooded based on the meteorological data and the traffic volume data, when a probability, that the vehicle traffic volume in a normal time is less than or equal to the predetermined number of vehicles, is less than a predetermined value, the normal time being a state in which a rainfall amount is less than a predetermined value.

Abstract: A flood detection device includes a detection result acquisition section, a weather information acquisition section and an identification section. The detection result acquisition section acquires a detection result that, on the basis of a plurality of kinds of running state data relating to running of a vehicle, detects flooding of a road on which the vehicle is running. The weather information acquisition section acquires weather information including at least one of rainfall information representing a measured rainfall amount in a region in which the vehicle is running or rainfall estimation information representing an estimated rainfall amount. The identification section uses the respective acquisition results of the detection result acquisition section and the weather information acquisition section to identify flooding of the road.

Abstract: A flooding sensing device, including: an acquisition section configured to acquire vehicle model information and plural items of travel state data related to travel of a vehicle; and a detection section configured to select a vehicle behavior model from plural vehicle behavior models that are derived in advance for each vehicle model, the vehicle behavior model corresponding to the vehicle model information and calculates a physical quantity that changes in accordance with travel by the vehicle, the detection section detects flooding of a road on which the vehicle travels, using the physical quantity, which is predicted based on the selected vehicle behavior model and on the current plurality of items of travel state data acquired by the acquisition section, and using the physical quantity, which is obtained from the current plurality of items of travel state data acquired by the acquisition section.

Abstract: A flood sensing device includes: an acquiring section that acquires plural types of traveling state data relating to traveling of a vehicle; and a sensing section that senses flooding of a road on which the vehicle travels by using (a) a physical quantity that is estimated on the basis of (i) a vehicle behavior model, which is configured by driving force of the vehicle and traveling resistance that includes air resistance applied to the vehicle, slope resistance applied to the vehicle and rolling resistance applied to the vehicle, and which determines the physical quantity that varies due to the vehicle traveling, and (ii) the plural types of traveling state data of the present time that are acquired by the acquiring section, and (b) the physical quantity that is obtained from the traveling state data of the present time that is acquired by the acquiring section.

Abstract: A frequency signal generation apparatus includes an atom cell including a first part including gaseous alkali metal atoms and a second part including liquid alkali metal atoms. A first temperature controller controls the first part's temperature. A second temperature controller controls the second part's temperature to be lower than that of the first part. First and second temperature detectors respectively detect the first and second parts' temperatures. The first temperature controller and the second temperature detector are thermally connected. The second temperature controller and the first temperature detector are thermally connected. The phase of a temperature control loop of the first part including the first temperature controller and the first temperature detector and the phase of a temperature control loop of the second part including the second temperature controller and the second temperature detector are different.

Abstract: A quantum interference device includes: an atomic cell in which alkali metal is sealed; a light source that emits light that excites the alkali metal; a light source temperature adjuster that adjusts temperature of the light source; a light receiver that receives light transmitted through the atomic cell and outputs an output signal in accordance with a light reception intensity; a detector that outputs an output signal in accordance with a chronological change in an amount of the light transmitted through the atomic cell based on the output signal of the light receiver; and a light source temperature controller that controls driving of the light source temperature adjuster based on the output signal of the detector.

Abstract: An atomic cell is filled with an alkali metal therein and includes an inner wall which is formed from a material containing a compound having a polar group, a first coating layer which coats the inner wall and is formed from a first molecule having a nonpolar group and a functional group that undergoes an elimination reaction with the polar group, and a second coating layer which coats the first coating layer and is formed from a nonpolar second molecule, wherein the second molecule is polypropylene, polyethylene, or polymethylpentene.

Abstract: A frequency signal generation apparatus includes an atom cell including a first part including gaseous alkali metal atoms and a second part including liquid alkali metal atoms. A first temperature controller controls the first part's temperature. A second temperature controller controls the second part's temperature to be lower than that of the first part. First and second temperature detectors respectively detect the first and second parts' temperatures. The first temperature controller and the second temperature detector are thermally connected. The second temperature controller and the first temperature detector are thermally connected. The phase of a temperature control loop of the first part including the first temperature controller and the first temperature detector and the phase of a temperature control loop of the second part including the second temperature controller and the second temperature detector are different.

Abstract: An atomic oscillator includes a gas cell, a semiconductor laser, and a frequency modulation signal generation section (such as a frequency transform circuit) which generates a frequency modulation signal for causing the semiconductor laser to generate frequency-modulated light including a resonance light pair (first-order sideband light pair) that causes an electromagnetically induced transparency phenomenon in metal atoms. When a modulation index of the frequency modulation signal, by which a first-order differential value of oscillation frequency deviation of the atomic oscillator becomes 0, is regarded as a first modulation index, the modulation index is within a range between a second modulation index, which is smaller than the first modulation index, with which the oscillation frequency deviation is 0 and a third modulation index, which is greater than the first modulation index, with which the oscillation frequency deviation is 0.

Abstract: A quantum interference device includes an atomic cell which has an internal space enclosing an alkali metal, a first light source which emits a resonance light pair circularly polarized in the same direction as each other and exciting the alkali metal, a second light source which emits an adjustment light, and a light receiver, wherein the atomic cell includes a first layer which is provided on an inner wall surface surrounding the internal space of the atomic cell and contains a compound derived from a first compound that is an oxide of a metal having a lower ionization tendency than the alkali metal, a second layer which is provided on the first layer and contains a compound derived from a second compound having a functional group that undergoes an elimination reaction with the compound derived from the first compound, and a third layer which is provided on the second layer and contains a compound derived from a third compound that is nonpolar.

Abstract: A quantum interference device includes an atomic cell which has an internal space enclosing an alkali metal, a first light source which emits a resonance light pair that is circularly polarized in the same direction as each other and excites the alkali metal, a second light source which emits an adjustment light, and a light receiver, wherein the atomic cell includes an inner wall surface which is formed of a material containing a compound having a polar group and surrounds the internal space, a first layer which is provided on the inner wall surface and contains a compound derived from a first compound having a functional group that undergoes an elimination reaction with the polar group, and a second layer which is provided on the first layer and contains a compound derived from a second compound that is a nonpolar olefin-based polymer.

Abstract: An atom cell is provided with an internal space including a space formed of a through hole housing gaseous alkali metal, a space formed of a through hole housing a compound as an alkali metal emission material, and a space formed of a through hole housing liquid or solid alkali metal.