Abstract: An authentication terminal (2) includes a behavior information acquisition unit (232) that acquires a plurality of types of behavior information acquired on the basis of an action of a worker who is a subject of personal authentication, and an authentication unit (25) that performs identity authentication of the worker on the basis of a comprehensive evaluation obtained by comprehensively evaluating the plurality of types of the behavior information. The authentication terminal (2) performs the identity authentication of the worker on the basis of the comprehensive evaluation obtained by comprehensively evaluating the plurality of types of the behavior information, and thus can perform user-friendly personal authentication using the behavior information of an individual.

Abstract: There is provided a communication device comprising: a control unit configured to control ranging with a wireless signal in conformity with a regulated communication standard, wherein the control unit controls output intensity of a data transmission signal that has a payload based on reception sensitivity for a plurality of ranging signals transmitted to and received from other communication devices.

Abstract: To provide a mechanism capable of matching timings at which communication is performed between devices. A communication device for performing wireless communication with another communication device, the communication device comprising: a first wireless communication unit configured to perform communication conforming to a first wireless communication standard; a second wireless communication unit configured to perform communication conforming to a second wireless communication standard; and a control unit configured to control the first wireless communication unit so that the first wireless communication unit transmits, a plurality of times, a first signal, the first signal being a signal conforming to the first wireless communication standard and being a signal including setting information that is information for setting a timing at which the second wireless communication unit performs communication.

Abstract: A control device that communicates with a first communication device and a second communication device, the control device comprising: a determination section configured to determine a position of a terminal on a basis of a first ranging result obtained from a radio wave communicated between the first communication device and the terminal and a second ranging result obtained from a radio wave communicated between the second communication device and the terminal, wherein the first communication device is disposed at a first position where it is difficult to directly receive the radio wave between a first area and a second area that are separated by a first member including material through which it is difficult for the radio wave to penetrate, and the second communication device is disposed at a second position where it is difficult to directly receive the radio wave between the first area and the second area.

Abstract: A control device and a control method that can reduce power consumption for waiting for reception of a signal are provided. The control device includes a controller configured to control a communicator such that the communicator performs wireless communication with another device. The controller controls a reception waiting time of a predetermined signal which is transmitted from the other device by the wireless communication on the basis of acquired acquisition information.

Abstract: To calculate the propagation times of signals transmitted and received between the devices more easily and accurately. There is provided a wireless communication device comprising a control section configured to control transmission and reception of a wireless signal by an antenna in conformity with a designated communication standard, wherein the control section controls a timing of causing the antenna to transmit a second signal in response to a first signal received by the antenna, on a basis of fixed time and delay time related to internal transfer in the wireless communication device, the fixed time being decided in advance.

Abstract: A control device includes a control section configured to obtain one or more distance measurement values, and estimate a relative position of a position changeable type communication device with respect to a target space based on the one or more distance measurement values, the one or more distance measurement values being obtained when one or more position fixed type communication devices and the position changeable type communication device perform wireless communication, and indicating a distance between each of the one or more position fixed type communication devices and the position changeable type communication device.

Abstract: The present invention provides a binder for a secondary battery having excellent binding force. A binder for a secondary battery comprising a polymer compound, wherein the polymer compound contains an acrylic repeating unit, and a 3% by mass aqueous solution of the polymer compound has a yellowness index of 14 or less.

Abstract: A communication device including: a plurality of wireless communicators configured to perform wireless communication with another communication device; and a controller configured to estimate a position at which the other communication device is located on the basis of a plurality of measured distance values which indicate distances between the plurality of wireless communicators and the other communication device and which are acquired through wireless communication performed by the plurality of wireless communicators.

Abstract: An authentication system comprising: a plurality of communication devices; and a control device configured to execute a process on a basis of information obtained through wireless communication between the respective communication devices and another communication device that is different from the plurality of communication devices, wherein each of the plurality of communication devices includes a wireless communication section configured to perform wireless communication with the other communication device, and the control device determines that the other communication device is successfully authenticated in a case where any one of a plurality of pieces of information regarding distances between the respective communication devices and the other communication device satisfies a designated condition on a basis of the pieces of information regarding the distances obtained through the wireless communication between the respective communication devices and the other communication device.

Abstract: To provide a control device and control method that make it possible to reduce inter-device authentication failure. Provided is a control device including a control section configured to execute an authentication process of authenticating another device on the basis of information for authentication acquired from the other device. The control section starts the execution of the authentication process in the case where a predetermined trigger is acquired.

Abstract: A communication device provides secure inter-device authentication that ensures certainty of processes. The communication device includes a control section configured to execute a process related to transmission or reception of a first authentication signal and a second authentication signal that are necessary for a first authentication process for authentication between the communication device and another communication device. The control section further controls a second authentication process for different authentication from the first authentication process, and starts a process related to transmission or reception of first information that is necessary for the second authentication process after transmission or reception of the second authentication signal.

Abstract: The present invention provides a method for producing a polymer compound for use as a binder for a secondary battery that exhibits reduced foaming when kneaded with an active material. A method for producing a polymer compound for use as a binder for a secondary battery, the polymer compound containing a repeating unit represented by formula (1) and a repeating unit represented by formula (2): [Formula 1] wherein each R1 is independently a hydrogen atom or a methyl group, and each R2 is independently an NH2 group, an OH group, an ONa group, or an OLi group, the method comprising the steps of copolymerizing monomers for forming the polymer compound in the presence of an azo polymerization catalyst; and saponifying the resulting copolymer.

Abstract: The present invention provides a binder for a secondary battery having excellent binding force. A binder for a secondary battery comprising a polymer compound, wherein the polymer compound contains an acrylic repeating unit, and a 3% by mass aqueous solution of the polymer compound has a Hazen color of 10 or more and 400 or less.

Abstract: A communication device that is included in a plurality of communication devices performing wireless communication with a terminal device, the communication device including: a wireless communication part that receives a wireless signal containing a plurality of pieces of result information including first result information obtained by wireless communication between the terminal device and the communication device and second result information obtained by wireless communication between the terminal device and another communication device of the plurality of communication devices; and a control part that outputs the plurality of pieces of result information contained in the wireless signal to a control device that performs communication with each of the communication devices.

Abstract: A communication device includes: a wireless communication section configured to perform wireless communication with another communication device; and a control section configured to control a location information acquisition process of acquiring location information indicating a location where the other communication device is present, on a basis of accuracy required for the location information, wherein the control section executes, as the location information acquisition process, a process including acquisition of the location information based on a result of wireless communication between the wireless communication section and the other communication device.

Abstract: A communication unit includes: a plurality of wireless communication units configured to perform wireless communication with another communication device; and a control unit configured to estimate a relative position of the other communication device relative to the communication unit, wherein the control unit estimates the relative position of the other communication device on the basis of a plurality of distance measurement values indicating a distance between each of the plurality of wireless communication units and the other communication device obtained by each of the plurality of wireless communication units performing wireless communication with the other communication device, and a position characteristic including a position of each of the plurality of wireless communication units in the communication unit.

Abstract: A communication device includes: a control unit configured to control a process of transmitting a first ranging signal, receiving a second ranging signal transmitted as a response to the first ranging signal from another communication device receiving the first ranging signal, and transmitting a data signal including regulation information regarding a transmission time of the first ranging signal and a reception time of the second ranging signal, wherein the data signal is transmitted and received in conformity with a first wireless communication standard, and wherein the first and second ranging signals are transmitted and received in conformity with a second wireless communication standard more appropriate for ranging than the first wireless communication standard.

Abstract: A communication device includes: a plurality of wireless communication units configured to perform wireless communication with another communication device; and a control unit configured to identify position information indicating a position at which the other communication device is located on the basis of at least three distance measurement results indicating a distance between each of at least three wireless communication units and the other communication device obtained in accordance with a result of wireless communication performed by each of the at least three wireless communication units among the plurality of wireless communication units.

Abstract: The present invention provides a binder for a secondary battery that can reduce the initial resistance value of the secondary battery. A binder for a secondary battery comprising a polymer compound, wherein the polymer compound contains repeating units represented by formulae (1), (2), and (3): in formula (1), R1 is a hydrogen atom or a methyl group, and M is a hydrogen atom or an alkali metal atom; and in formula (3), R2 is a hydrogen atom or a methyl group; and when a total ratio of repeating units constituting the polymer compound is taken as 100 mol %, a total ratio of the repeating unit represented by formula (3) is less than 2 mol %.