Abstract: A plurality of mobile vehicles or a stationary wireless station connected to the plurality of mobile vehicles by wireless communication periodically measures position information and wireless communication quality information indicative of quality of the wireless communication, and reports the measurement results to the control station. The control station groups measurement results belonging to a first time range among the measurement results reported from the plurality of mobile vehicles based on the position information, and learns a distribution of the wireless communication quality information for each grouped position range.

Abstract: A vehicle control system includes an on-board terminal mounted on an unmanned dump truck or a manned vehicle and including a first wireless modem communicating with a base station with a first wireless line and a second wireless modem communicating with a wireless base station with a second wireless line; a server device that communicates with the on-board terminal through the wireless base station; a storage section that stores correspondence information in which positional information (LID1 to LID 6) of the unmanned dump truck or the manned vehicle is corresponded with permission/prohibition information that permits or prohibits communication of the second wireless modem; and a control section that permits or prohibits the communication of the second wireless modem according to a position of the unmanned dump truck or the manned vehicle, based on the correspondence information stored in the storage section.

Abstract: A vehicle control system that makes it possible to ensure the safety and enhance the productivity at the same time is provided. An unmanned dump 10 receives positional information about a manned vehicle 20 by using infrastructure-to-vehicle communication 520 and infrastructure-to-infrastructure communication 510. In a case where an inter-vehicle distance X between the unmanned dump 10 and the manned vehicle 20 is equal to or shorter than a reference distance Y, the unmanned dump 10 decides whether or not vehicle-to-vehicle communication 550 is established between the unmanned dump 10 and the manned vehicle 20. In a case where it is decided that the vehicle-to-vehicle communication 550 is established, the upper limit of the travel speed of the unmanned dump 10 is set to a first speed V1, and in a case where it is decided that the vehicle-to-vehicle communication 550 is not established, the upper limit of the travel speed of the unmanned dump 10 is set to a second speed V2.

Abstract: Provided is a vehicle control system that can prevent delays and losses in packet communication, prevent handover failures, and improve productivity while ensuring safety for various types of vehicles. The vehicle control system includes an on-board terminal mounted on a vehicle and including a plurality of wireless modems; a plurality of wireless base stations that wirelessly communicate with the on-board terminal, and form a plurality of cells; and a vehicle central control device that communicates with the on-board terminal via one of the wireless base stations. Each of the plurality of wireless modems is configured to be able to, when the vehicle moves across the plurality of cells, execute a handover to switch a connection to one of the plurality of wireless base stations to another. Each of the plurality of wireless modems is configured to be able to set threshold for executing the handover different from the others.

Abstract: An intellectual productivity evaluation device includes: an obtainment unit configured to obtain a set of answer times required by a subject to accomplish a task of answering a plurality of questions, the task being imposed on the subject as intellectual work; an evaluation unit configured to calculate an evaluation value related to a depth of concentration of the subject in a concentrated state using the set of answer times obtained by the obtainment unit based on a model in which the subject is in the concentrated state or an unconcentrated state during the intellectual work; and an output unit configured to output evaluation value information indicating the evaluation value calculated by the evaluation unit.

Abstract: A vehicle control system includes an autonomous traveling vehicle configured to autonomously travel in a mine, a manned vehicle. The autonomous traveling vehicle and the manned vehicle each include an own position estimating device and a vehicle mounted communication terminal. The autonomous traveling vehicle and the manned vehicle are communicatively connected via one wireless channel. The manned vehicle transmits manned vehicle location information using a first communication method at a first granularity. When a distance from the manned vehicle is determined to be a first inter-vehicular distance threshold or less based on the manned vehicle location information transmitted by the first communication method, the autonomous traveling vehicle instructs the manned vehicle to transmit the manned vehicle location information by a second communication method different from the first communication method at a second granularity smaller than the first granularity.

Abstract: A vehicle control system that makes it possible to ensure the safety and enhance the productivity at the same time is provided. An unmanned dump 10 receives positional information about a manned vehicle 20 by using infrastructure-to-vehicle communication 520 and infrastructure-to-infrastructure communication 510. In a case where an inter-vehicle distance X between the unmanned dump 10 and the manned vehicle 20 is equal to or shorter than a reference distance Y, the unmanned dump 10 decides whether or not vehicle-to-vehicle communication 550 is established between the unmanned dump 10 and the manned vehicle 20. In a case where it is decided that the vehicle-to-vehicle communication 550 is established, the upper limit of the travel speed of the unmanned dump 10 is set to a first speed V1, and in a case where it is decided that the vehicle-to-vehicle communication 550 is not established, the upper limit of the travel speed of the unmanned dump 10 is set to a second speed V2.

Abstract: A vehicle control system includes an autonomous traveling vehicle configured to autonomously travel in a mine, a manned vehicle. The autonomous traveling vehicle and the manned vehicle each include an own position estimating device and a vehicle mounted communication terminal. The autonomous traveling vehicle and the manned vehicle are communicatively connected via one wireless channel. The manned vehicle transmits manned vehicle location information using a first communication method at a first granularity. When a distance from the manned vehicle is determined to be a first inter-vehicular distance threshold or less based on the manned vehicle location information transmitted by the first communication method, the autonomous traveling vehicle instructs the manned vehicle to transmit the manned vehicle location information by a second communication method different from the first communication method at a second granularity smaller than the first granularity.

Abstract: An air environment control system includes one or more adjustment devices that adjust an air environment in a space; and a control device that controls the one or more adjustment devices. The air environment control device includes an air environment control unit that controls (i) at least one of the one or more adjustment devices to create a cooler environment in the space, when a person does intellectual work in the space; and (ii) at least one of the one or more adjustment devices to create a warmer environment warmer than the cooler environment in the space, when the person has a break in the space. The control unit further controls at least one of the one or more adjustment devices to apply cool stimulation to the person, when the person starts the intellectual work in the space.

Abstract: An intellectual productivity evaluation device includes: an obtainment unit configured to obtain a set of answer times required by a subject to accomplish a task of answering a plurality of questions, the task being imposed on the subject as intellectual work; an evaluation unit configured to calculate an evaluation value related to a depth of concentration of the subject in a concentrated state using the set of answer times obtained by the obtainment unit based on a model in which the subject is in the concentrated state or an unconcentrated state during the intellectual work; and an output unit configured to output evaluation value information indicating the evaluation value calculated by the evaluation unit.

Abstract: Provided is an environment control system that controls an environment of a space in which a user performs an intellectual task. The environment control system includes: a controller which performs scene control for reproducing one or more predetermined scenes in the space by controlling one or more luminaires that emit illumination light that illuminates a predetermined area in the space and one or more air conditioning devices that air-condition the space. The one or more predetermined scenes include: a concentration scene that causes the user to concentrate on the intellectual task; and a rest scene that eases the concentration of the user. The controller switches between concentration scene control for reproducing the concentration scene and rest scene control for reproducing the rest scene when a predetermined condition is satisfied.

Abstract: Provided is an environment control system that controls an environment of a space. The environment control system includes: a controller that performs scene control for reproducing one or more predetermined scenes in the space. The controller includes: a lighting controller that adjusts an illuminance or a color temperature of illumination light that is emitted by one or more luminaires and illuminates a predetermined area in the space, by controlling the one or more luminaires; and an air conditioning controller that adjusts a temperature, a humidity, and an airflow in the space by controlling one or more air conditioning devices that air-condition the space. The controller performs the scene control by adjusting the illuminance or the temperature of the illumination light, and the temperature, the humidity, and the airflow in the space.

Abstract: An intellectual-productivity analysis apparatus includes a presentation device, an input device, and an evaluation device. The presentation device presents a plurality of questions to a test subject. The input device allows the test subject input an answer to each question. The evaluation device includes a work memory part and an evaluating arithmetic part. The work memory part stores the answering time from a time when a question is presented on the presentation device to a time when the answer is inputted into the input device for each of the plurality of questions. The evaluating arithmetic part calculates an evaluation value on the intellectual productivity of the test subject during a measurement period of measuring the answering time of each of the plurality of questions by extracting a feature amount from the set of the answering time stored in the work memory part.

Abstract: To prevent the switching time influences power saving performance and packet loss prevention performance, it is provided a wireless communication base station for communicating with a terminal, comprising: a plurality of baseband signal processing units for performing baseband signal processing; a baseband allocation unit for allocating the baseband signal processing to the plurality of baseband signal processing units; and a linear processing unit for composing signals processed by the plurality of baseband signal processing units. The baseband allocation unit selects, for each data block, a baseband signal processing unit to which the baseband signal processing for the each data block is to be allocated out of the plurality of baseband signal processing units. Each of the plurality of baseband signal processing units performs the allocated baseband signal processing.

Abstract: A presentation device is configured to present a plurality of recognition objects to a test subject. An input device is configured to allow the test subject input an answer of a work problem as a mental work to each recognition object. The evaluation device includes a work memory part configured to store, as work information, an answering time from a time when a recognition object is presented on the presentation device to a time when the answer is inputted into the input device. Also, the evaluation device includes an evaluating arithmetic part configured to calculate an evaluation value of a concentration ratio of the test subject using a statistics value of the work information stored in the work memory part while the plurality of recognition objects are presented on the presentation device.

Abstract: Interference applied to neighbor cells during terminal handovers can be reduced in wireless communication systems containing base stations having different cell sizes. A serving cell makes handover judgment criteria easier based on pre-acquired cell size information on its own cell and cell size information of neighbor cells in order to facilitate terminal handovers from a base station with a large cell size to a base station with a small cell size. The serving cell finds evaluation function values based on the propagation state (e.g. reference signal received power) between the terminal and target cell, and the interference and load information exchanged between the base stations, and selects the terminal for handover by comparing the evaluation function value with the handover criteria value. The system selects a target cell having a good effect in lowering interference such as a cell with large reference signal received power acquired from a terminal, to serve as the handover destination.

Abstract: Even when a downlink radio traffic volume is larger than an uplink radio traffic volume in a radio communication system, but uplink resources are redundant in a related art radio communication system, free uplink resources could not be sufficiently utilized. In a base station having a cellular unit that performs cellular communication with a terminal, and a D2D unit that performs communication with the terminal through a device-to-device communication system, when the downlink radio resources get tight, and the uplink radio resources are redundant, the D2D unit of the base station conducts transmission and reception with the terminal with the use of the uplink radio resources.

Abstract: An intellectual-productivity analysis apparatus includes a presentation device, an input device, and an evaluation device. The presentation device presents a plurality of questions to a test subject. The input device allows the test subject input an answer to each question. The evaluation device includes a work memory part and an evaluating arithmetic part. The work memory part stores the answering time from a time when a question is presented on the presentation device to a time when the answer is inputted into the input device for each of the plurality of questions. The evaluating arithmetic part calculates an evaluation value on the intellectual productivity of the test subject during a measurement period of measuring the answering time of each of the plurality of questions by extracting a feature amount from the set of the answering time stored in the work memory part.

Abstract: Regardless of use of small resource in donor (macro) base station, high throughput in relay femto base station is provided. The relay femto base station transfers data of a C-plane communicated between a core network and a mobile station through the donor macro base station by a radio link, and transfers data of a U-plane through an internet by a wired public line. The relay femto base station measures an interfered power from a neighboring relay femto base station, and notifies the donor macro base station of the measured interfered power, and the donor macro base station adjusts radio packet scheduling so as to prevent interference between the relay femto base stations on the basis of a notified measurement value of the interfered power.

Abstract: Reception power of a terminal for a first communication scheme is measured. A propagation path loss between a base station and the terminal is calculated. The propagation path loss is estimated in a case where communications are conducted using a second communication scheme, and reception power of the terminal is estimated from output of the base station for the second communication scheme and the estimated propagation path loss. If the sufficiency and stability of the reception power are assumed, the switching from the first communication scheme to the second communication scheme is done. In this way, stable communications using the second communication scheme are ensured.