摘要:
The present invention relates to a communication system comprising devices (2a-2d) having means for short range communication using a certain frequency band. The frequency band is divided into communication channels. In the communication system some of said communication channels are predefined for establishment of the connection and other communication channels are predefined for data transfer between at least two devices. The present invention also relates to a communication device for communication in a communication system, the device having means for short range communication using a certain frequency band, which is divided into communication channels. The present invention further relates to a method for performing communication in a communication system comprising devices, which have means for short range communication using a certain frequency band, which is divided into communication channels.
摘要翻译:本发明涉及一种包括具有使用特定频带进行短距离通信的装置的装置(2 a -2 d)的通信系统。 频带分为通信信道。 在通信系统中,一些所述通信信道被预定义用于建立连接,并且为至少两个设备之间的数据传输预定义其他通信信道。 本发明还涉及一种用于通信系统中的通信的通信设备,该设备具有使用特定频带的短距离通信的装置,其被分成通信信道。 本发明还涉及一种用于在通信系统中执行通信的方法,该通信系统包括具有用于使用特定频带的短距离通信的装置的设备,该特定频带被划分为通信信道。
摘要:
A communications device has a NFC communicator (15) having a coupler (17) to couple with a coupler of a near field RF communicator in near field range to enable communication of data between the communicators by modulation of a magnetic field, a demodulator (42) to extract modulation from a modulated signal coupled to the coupler and a modulator (40) to modulate an RF signal in accordance with data to be communicated by the NFC communicator. The device also has at least one secure element (30; 31) separate from the near field RF communicator (15) to provide secure data storage for transaction data representing or relating to a transaction. A controller controls operation of the NFC communicator, reads transaction data from the at least one secure element and causes the modulator to modulate an RF signal in accordance with transaction data read from the at least one secure element so as to communicate the read transaction data to a near field RF communicator in near field range as proof of the transaction to enable an action related to the transaction to be carried out.
摘要:
A terminal for interacting with a signaling tag includes a controller capable of selecting a signaling tag and thereafter receiving a tag type from the signaling tag at least partially over an air interface. The controller is also capable of determining if the terminal is actively operating an application. In this regard, the controller is capable of performing a predefined action based upon the tag type, such as based upon a tag type of “Read Only,” “Read/Write” or “Transceiver in Show Mode.” And when the controller is actively operating an application, the controller is capable of performing the predefined action further based upon the application and a state of the application.
摘要:
Methods, systems, and devices for controlling electrical energy consumption in an electricity distribution network, so as to reduce net energy consumption in a given area during a given time period, are described. In particular, a method of controlling electrical energy consumption within an electricity distribution network is described. The method comprises maintaining a database of information about electric devices, and identifying a time period during which consumption of electrical energy is to be controlled. The method further comprises selecting, based on device profile information stored in the database, groups of electric devices, and associating one or more time intervals with each of the selected groups. Requests are sent to the electric devices of the selected groups to control electrical energy consumption and/or provision by the electric devices. This enables a reduction in net consumption of electrical energy during a respective time interval.
摘要:
A near field RF communicator (100) has an inductive coupler (102) and a first signal provider (109, 110, 111) to cause the inductive coupler to provide a first signal that when inductively coupled to the inductive coupler of another near field RF communicator in near field range is insufficient to cause initiation of communication with that other near field RF communicator. A sensor (116) senses a change in an impedance of the inductive coupler (102) due to inductive coupling of the first signal between the inductive couplers of the said near field RF communicator and a said other near field RF communicator in near field range. A controller (107) determines whether or not another near field RF communicator is in near field range on the basis of any change in impedance sensed by the sensor and, if another near field RF communicator is determined to be in near field range, causes a second signal to be inductively coupled to the other near field RF communicator to initiate communication between the two near field RF communicators. The sensor may use a phase detector (118) to enable a change in impedance to be sensed by detecting a change in a current-voltage phase relationship resulting from a change in impedance.
摘要:
A terminal for interacting with a signaling tag includes a controller capable of selecting a signaling tag and thereafter receiving a tag type from the signaling tag at least partially over an air interface. The controller is also capable of determining if the terminal is actively operating an application. In this regard, the controller is capable of performing a predefined action based upon the tag type, such as based upon a tag type of “Read Only,” “Read/Write” or “Transceiver in Show Mode.” And when the controller is actively operating an application, the controller is capable of performing the predefined action further based upon the application and a state of the application.
摘要:
The present invention relates to a storage card having selectable contact elements a terminal capable of receiving said storage card and method of its operation. The storage card with selectable contact elements, comprises an interface having a plurality of contact elements, a storage card controller, being connected to at least a subset of said contact elements, a storage memory device, being connected to said storage card controller, a switching unit, that is connected to said storage card controller and to at least one of said contact elements of said interface, wherein said storage card controller is connected to said switching unit to controllably select said at least one contact element.
摘要:
A near field communicator has a driver (6) to supply a drive signal to drive an antenna (10) to generate a magnetic field. A magnetic field sensor (18) is located so as to be within a magnetic field generated by the antenna (6) to sense a magnetic field characteristic. A controller (17) provides a control signal to control the operation of the driver (6) to compensate for any difference between the magnetic field characteristic sensed by the magnetic field sensor (18) and a predetermined parameter.
摘要:
Methods and systems for measuring and/or managing power consumption by power units connected to an electricity distribution network are disclosed. Power flow to and/or from a power unit connected to an electricity distribution network is controlled in accordance with a control sequence, such that the consumption and/or provision of power by the power unit results in a power flow having a predefined flow pattern, and having a characteristic, such as an amplitude, which can be remotely measured. This measurement may be performed using a method in which a signal indicative of power flowing at a measurement node is measured and correlated with a predefined pattern, and a characteristic of the correlated signal is measured. Thus, power flow characteristics resulting from a group of one or more power flow devices can be remotely detected and measured.
摘要:
Methods and systems for controlling a reactive power contribution to reactive power flowing in an electricity distribution network, so as to optimize this reactive power flow are described. A reactive power characteristic of electrical power flowing in the electricity distribution network is detected at a power device. The reactive power characteristic relates to a reactive power component of electricity flowing in the network. On the basis of the detected reactive power characteristic a reactive power contribution to the electricity distribution network is controlled so as to adjust a value of the detected reactive power characteristic. This enables individual power consumption and/or provision devices to react autonomously to local variations in the electricity distribution network, and to provide a reactive power contribution, to drive the detected reactive power characteristic towards a desired value.