Abstract: The following are executed: received power acquisition processing; propagation loss calculation processing of calculating propagation losses between the transmitter and the receiver, based on received power; median processing of calculating a median of a plurality of the propagation losses calculated in the propagation loss calculation processing in a predetermined time period, and outputting the median as propagation losses to be used for subsequent processing; loss peak acquisition processing of acquiring a maximum value of the propagation losses output in the median processing; distance calculation processing of calculating a distance between the transmitter or the receiver and blocking entities, at least based on the maximum value, heights of antennas, and a wavelength of the radio communication; and congestion degree calculation processing of estimating a congestion degree by calculating the number of the blocking entities in chronological order, based on the distance, integrating the number for a predet

Abstract: A powder-containing composition contains from 0.5% by mass to 22% by mass of a first powder which is a nonspherical powder having a hydrophobic particle surface, from 6% by mass to 25% by mass of a liquid-state polyol, 50% by mass or greater of water, and from 3% by mass to 12% by mass of a liquid-state oily component. A content of a second powder which is a spherical powder is 1.5 parts by mass or less relative to 1 part by mass of the first powder. A content of a surfactant is 0.5% by mass or less relative to the mass of the powder-containing composition.

Abstract: A wireless communication method in a wireless communication system includes carrier sense processing for determining whether a carrier sense band is in a busy state or an idle state on the basis of a reception state of a reception signal in the carrier sense band before transmitting a transmission signal using a transmission channel. The carrier sense band is set so as to include not only a transmission channel band which is a frequency band of a transmission channel but also an adjacent carrier sense band adjacent to the transmission channel band. When it is determined that the carrier sense band is in an idle state, transmission processing for transmitting a transmission signal by using a transmission channel is performed.

Abstract: A wireless system according to an embodiment includes at least one terminal and a base station. The terminal includes a wireless communication module and a first control unit. The wireless communication module transmits and receives data to and from the base station. When motion is detected from an acquired video, the first control unit transmits a frame image, which is a still image extracted from the video, to the base station by using the wireless communication module, and transmits the video to the base station by using the wireless communication module when transmission of the video is requested by the base station as a result of transmitting the frame image. The base station includes a second control unit. The second control unit determines whether or not to request transmission of a video on the basis of a frame image, and requests a terminal to transmit a video when determining to request transmission of a video.

Abstract: A base station according to an embodiment includes an antenna, a wireless device, a wireless information acquisition unit, a control unit, a directivity setting unit, a directivity control unit, and a communication instruction unit. The antenna has an omni-directional array antenna. The wireless device communicates with one or more terminals in a cover area by using a wireless signal via the antenna. The wireless information acquisition unit acquires wireless information including the position of the terminal and a communication time block. On the basis of the wireless information, the control unit determines a communication execution time block, which is a time block for executing communication with the terminal, and an antenna gain of the antenna for communicating with the terminal. On the basis of the antenna gain, the directivity setting unit sets a directivity pattern of the omni-directional array antenna so as to have directivity in the direction of the terminal.

Abstract: A radio communication apparatus according to an embodiment includes a radio communication unit (1011), a radio information acquisition unit (1013), and a transmission condition setting unit (104). The radio communication unit transmits a radio signal. The radio information acquisition unit continuously acquires radio information containing received signal strength in the radio communication unit. The transmission condition setting unit sets a transmission time slot for transmitting the radio signal in the radio communication unit and an index value of a modulation and error correction coding rate in the radio communication unit in accordance with the radio information.

Abstract: A radio communication apparatus according to an embodiment includes a first radio communication unit (1011) that transmits a radio signal by using a first channel, a second radio communication unit (1021) that transmits a radio signal by using a second channel different from the first channel, a first radio information acquisition unit (1013) that acquires first radio information containing received signal strength in the first radio communication unit and usage of the first channel, a second radio information acquisition unit (1023) that acquires second radio information containing received signal strength in the second radio communication unit and usage of the second channel, a determination unit (104) that determines whether to switch between the first radio communication unit and the second radio communication unit in accordance with the first radio information and the second radio information, and a switching unit (105) that switches between the first radio communication unit and the second radio communi

Abstract: Provided are: a first wireless station, a second wireless station that can move to an arbitrary position in a three-dimensional space and perform wireless communication with the first wireless station, and a measuring device that measures the position of the second wireless station in the three-dimensional space to obtain measurement information. At least one out of the first wireless station, the second wireless station, and the measuring device includes: an acquisition unit that acquires reception signal information that was received by the first wireless station or the second wireless station, and a calculation unit that associates the measurement information and the reception signal information with each other and calculates the propagation characteristics between the first wireless station and the second wireless station.

Abstract: A communication control method of controlling switching between propagation paths on a receiver side of a wireless communication system having a plurality of propagation paths, the communication control method including: detecting a position of a moving object on the periphery of the propagation paths and a size of the moving object every predetermined time determined in advance; predicting a movement destination of the moving object based on a movement speed and a movement direction of the moving object calculated from the position of the moving object every predetermined time detected in the detecting, and in a case where the propagation path in communication is blocked by the moving object, predicting a blocking ratio of the propagation path; determining whether or not the propagation path in communication needs to be switched to another propagation path based on a result of the prediction acquired in the predicting; and, in accordance with a determination that the propagation path in communication needs t

Abstract: The following are executed: received power acquisition processing; propagation loss calculation processing of calculating propagation losses between the transmitter and the receiver, based on received power; median processing of calculating a median of a plurality of the propagation losses calculated in the propagation loss calculation processing in a predetermined time period, and outputting the median as propagation losses to be used for subsequent processing; loss peak acquisition processing of acquiring a maximum value of the propagation losses output in the median processing; distance calculation processing of calculating a distance between the transmitter or the receiver and blocking entities, at least based on the maximum value, heights of antennas, and a wavelength of the radio communication; and congestion degree calculation processing of estimating a congestion degree by calculating the number of the blocking entities in chronological order, based on the distance, integrating the number for a predet

Abstract: A light source separation method of separating light sources in a communication system performing visible-light communication in which information is transmitted by changing luminance of the light sources includes: acquiring luminance information of a communication area; dividing the communication area into a plurality of segments based on the luminance information; separating each light source performing the visible-light communication based on a luminance variation pattern of each segment; and converting light from the light source separated in the separating into a reception signal and outputting the reception signal.

Abstract: A transferring apparatus for a transfer press machine which includes a plurality of working stations disposed in a work-transferring direction and provided with lower dies and upper dies cooperating to press workpieces, so that the workpieces are sequentially transferred between the working stations. A plurality of sets of pairs of left and right carriages are associated with one of the working stations. The spacings between adjacent twos of the sets of the carriages are adjusted in said transferring direction during operation. At least one cross bar is mounted to extend between the left and right carriages of each set and has suction cups mounted on an intermediate portion thereof for holding the workpiece. The cross bar is cyclically movable in the transferring direction and in a vertical direction. A pair of left and right guide bars vertically movably are mounted to extend along opposite sides of the working stations to provide the cyclic motion of the cross bar.

Abstract: A path for retreating movement of a cross bar from a standby position between a drawing mold and a mold of the next step to the drawing mold for holding the workpiece drawn by the drawing mold and a path for advancing movement of the cross bar holding the workpiece to the mold of the next step are formed into an upwardly smoothly curved line, and raising of a blank holder for the drawing mold is stopped temporarily for a period until the workpiece is discharged from the drawing mold by the cross bar. The paths for movement of the cross bar includes no suddenly turning portion and hence, any vibration of the cross bar due to an inertia force is prevented. Even if the paths for movement of the cross bar associated with all the molds are established in the same form, it is avoided that the cross bar or the workpiece interferes with the blank holder in the drawing mold.

Abstract: An apparatus for assembling a catalytic converter, comprising a casing assembling device which includes a stationary receiving stand onto which one of the casing halves is placed with its inner surface directed upwardly, a positioning member movable between a position in which an end face of the catalyst abuts against the positioning member within the casing on the stationary receiving stand and a position outside of the casing, a lift bearer capable of holding the other casing half with its inner surface directed downwardly and liftable above the stationary receiving stand, and welding machines disposed on opposite sides of the stationary receiving stand.

Abstract: A method for producing a wheel rim of an automotive vehicle comprising the steps of supporting a cylindrical body on a vertical axis between an upper punch attached to an upper mold and a lower punch attached to a lower mold; fitting a side die to an outer peripheral surface of the cylindrical body, with the cylindrical body supported; then lowering the upper punch together with the upper mold to insert the upper punch into an upper portion of the cylindrical body and to form the upper end portion of the cylindrical body into the flange portion by press forming between the upper punch and the side die; thereafter releasing the cylindrical body from the supported state at its lower end surface; and further lowering the upper punch together with the side die and the cylindrical body to insert the lower punch into a lower portion of the cylindrical body and to form the lower end portion of the cylindrical body into the flange portion by press forming between the lower punch and the side die, whereby the working

Abstract: A press machine includes at least one mobile bolster movable with respect to the press machine, a plurality of die assemblies mounted on the mobile bolster and arranged in a row, a plurality of handling bars disposed in retracted positions between the die assemblies and movable, when one pressing cycle is completed, for gripping and transferring a plurality of workpieces successively through the die assemblies, and a plurality of handling bar gripping devices disposed in the retracted positions closely to the opposite sides of the side assemblies.

Abstract: A workpiece transfer device in a press machine simultaneously transfers workpieces from die assembly to die assembly for each pressing cycle. The workpiece transfer device includes two vertically movable bars extending along a direction in which the workpieces are transferred through the press machine, the movable bars being vertically movable by a lifting/lowering mechanism, two feed bars mounted respectively on the vertically movable bars and axially movable by a moving mechanism, and a plurality of handling bars detachably mounted on the feed bars and each having a plurality of workpiece holders for holding the workpieces.

Abstract: The present invention provides a method and apparatus for attaching a ring-like part to the outer periphery of a columnar material, as, for example, in the assembling of a catalytic converter. The columnar material is positioned and supported with its axis oriented horizontally. A guide member is supported from the side to position it adjacent to the columnar material on the same axis as the columnar material. The guide member has an outer inclined surface enlarged towards the columnar material. The guide member is then supported in the axial direction and at the same time, has the side support thereof released. The ring-like part is then pushed while guiding it on the outer inclined surface of the guide member to fit it over a portion of the columnar material. The pushing of the ring-like part is released and then the guide member is again supported from the sides, while at the same time, the support thereof from the axial direction is released.

Abstract: A conveyor in a plastic working machine, wherein lower dies and upper dies for plastic working of a work in collaboration are disposed on a plurality of working stations, respectively, the stations being set at intervals along the direction in which the work is conveyed, arms each having a handling mechanism for holding the work are provided on transfer bars disposed sideway of the working stations for conveying the work in sequence among the working stations, the transfer bars are provided on both sides of each working station, the arms are bridged between both the transfer bars with both the ends borne on both the transfer bars movably back and forth in the conveying direction or fixed to both the transfer bars.

Abstract: A conveyor in a plastic working machine, wherein lower dies and upper dies for plastic working of a work in collaboration are disposed on a plurality of working stations, respectively, the stations being set at intervals along the direction in which the work is conveyed, arms each having a handling mechanism for holding the work are provided on transfer bars disposed sideway of the working stations for conveying the work in sequence among the working stations, the transfer bars are provided on both sides of each working station, the arms are bridged between both the transfer bars with both the ends borne on both the transfer bars movably back and forth in the conveying direction or fixed to both the transfer bars.