120results about "Transmission systems" patented technology

Various embodiments of the present invention provide systems and methods for data processing. For example, a variable iteration data processing system is disclosed that includes a first detector, a second detector, a decoder and a unified memory buffer. An input data set is received by the first detector that performs a data detection and provides a first detected data set. The decoder receives a derivative of the first detected data set and performs a decoding operation that yields a decoded data set. In some cases, the derivative of the first detected data set is an interleaved version of the first detected data set. The decoded data set is written to a unified memory buffer. The first decoded data set is retrievable from the unified memory buffer and a derivative thereof is provided to the second detector. In some cases, the derivative of the decoded is a de-interleaved version of the decoded data set. The second detector is operable to perform a data detection on the derivative of the decoded data set and to provide a second detected data set that is written to the unified memory buffer.

To provide a wireless sensor system, in which an abnormal power supply in the power supply section can be ascertained, for avoiding a malfunction of the system and accomplishing a stable power supply with reduction of the consumption of a power being transmitted, the wireless sensor system includes wireless sensor units and a sensor signal receiving unit. The wireless sensor units include a sensor section for detecting a detection object, a sensor signal transmitting section for transmitting by wireless a sensor signal from the sensor section, and a power supply section having a power receiving section for receiving a driving power transmitted by wireless. In this system, a power supply monitoring section is provided for monitoring the voltage of the power supply section. The sensor signal receiving unit includes a monitor dependent power control section for regulating the power to be transmitted, depending on a monitored result of the power monitoring section.

The embodiment of the invention provides a method for pairing an unmanned aerial vehicle and a remote controller, a server, the remote controller and a system, wherein the system at least comprises the server, the remote controller and the unmanned aerial vehicle, wherein the server is used for judging that the remote controller is bound with the unmanned aerial vehicle in need of being paired, obtaining a pairing parameter corresponding to a pairing request, and returning the pairing parameter to the remote controller; the remote controller is used for generating the pairing request, sending the pairing request to the server, and performing communication configuration of the remote controller according to the pairing parameter; and the unmanned aerial vehicle is used for obtaining the pairing parameter from the server or the remote controller, and performing communication configuration of the unmanned aerial vehicle according to the pairing parameter. By means of the embodiment of the invention, the pairing accuracy rate of the unmanned aerial vehicle and the remote controller can be increased; and environmental requirements in the pairing process can be reduced.

A storage device comprising has a storage medium, a read-write mechanism, an object-based file system interface, and a controller. The read-write mechanism is adapted to read and to write data from and to the storage medium. The object-based file system interface within the storage device is adapted to organize and access data on the storage medium as objects and to access attributes of each data object. The controller is adapted to generate redundancy data for each data object to be stored on the storage medium according to the associated attributes and to store the data object and its associated redundancy data on the storage medium.

A distributed LSR sends data from a first edge LSR, across a non-MPLS network, to a second edge LSR, thereby enabling a non-MPLS network to interface transparently with MPLS networks. This enables a VPN to use a public network to communicate from one portion of the network to another, remote portion. The distributed LSR includes an ingress gateway logically positioned between the first edge LSR and the non-MPLS network. This ingress gateway receives label requests from the first edge LSR. These label requests are multicast to several egress gateways. At least one egress gateway sends a message back indicating that it can transmit data to the destination. In response, the ingress gateway designates that egress gateway to be a designated gateway. The egress gateway then establishes a tunnel through the non-MPLS network to the ingress gateway.

A passive optical network (PON) including an optical line termination (OLT) and a plurality of optical network units (ONUs) which are connected. The optical line termination includes a band setting control section; an upstream control cell receiving section; a use right transmitting section; and a downstream control cell transmitting section. Each of the plurality of optical network units includes a downstream control cell receiving section; a use right acquisition determining section; and an upstream control cell transmitting section.

In a method for repeat transmission of messages in a centrally controlled communication network including a plurality of terminals and a central station messages assigned sequence numbers are broadcast or multicast from the central station for reception by terminals of a participating group. As soon as a terminal detects loss of a transmitted message or an error in the transmitted message, it transmits a repeat request for repeat transmission of that message, which includes the sequence number of the lost or erroneous message, over another communication link, especially a point-to-point communication link. The central station repeats the message transmission of the lost or erroneous message but only until a predetermined maximum number of repetitions occurs within a predetermined time interval or until a positive acknowledgement of receipt of the previously lost or erroneous message is received.

Provided a method and device for efficiently retransmitting packets of which transmissions failed in wired/wireless network including detecting continuity by detecting whether or not a sequence ID of a received packet is continuous with a start sequence ID or an end sequence ID of packets included in reception blocks which are generated in advance of the received packet; depending on the result of the detection, manipulating reception blocks to renew or delete the reception blocks or generate a new reception block by using the sequence ID of the received packet; and transmitting an EBN (Explicit Block NACK) for requesting retransmission of lost packets in units of a block when discontinuity is detected.

The present invention discloses a Discontinuous Reception (DRX) parameter configuration method for facilitating Automatic Neighbor Relation (ANR) measurement. The method comprises determining a traffic intensity of a User Equipment (UE) by which a DRX-based ANR measurement is to be performed. The method further comprises setting a value for a DRX parameter to be used by the UE to perform the DRX-based ANR measurement, in accordance with the determined traffic intensity of the UE. The method further comprises transmitting the value set for the DRX parameter to the UE. The present invention further provides an associated BS adapted to perform DRX parameter configuration to facilitate ANR measurement.

In a mobile communication system in which a plurality of component carriers are used, transmitting and receiving control information of HARQ effectively is realized. In a mobile communication system in which a base station apparatus (100) sets a plurality of downlink component carriers for a mobile station apparatus (200), the base station apparatus (100) transmits a downlink transport block to the mobile station apparatus (200) on one or a plurality of downlink component carriers among the plurality of downlink component carriers, and the mobile station apparatus transmits, to the base station apparatus (100), control information of HARQ for the downlink transport block on any one of physical uplink control channel resources corresponding to the one or plurality of downlink component carriers on which the downlink transport block has been transmitted.

The invention relates to a wireless monitoring system and method for a modal parameter of a blade of a fan. The method comprises the following steps of: A, collecting a vibration acceleration signal of a blade according to periods; B, processing the signal collected in the step A to obtain a digital signal; C, processing the digital signal obtained in the step B to obtain the modal parameter of the blade, and meanwhile, reading the air speed of the fan and variable pitch data; D, storing the data obtained in the step C, and transmitting the data to a remote analysis terminal; and E, carrying out analytical calculation on the data to obtain the inherent frequency and vibration mode of the blade. The system comprises a coordinator and more than one sensor fixedly arranged on the blade. By using the wireless monitoring system for the modal parameter of the blade of the fan, provided by the invention, the real-time modal parameter of the blade of the fan can be obtained through monitoring the vibration of the blade; the monitoring method and a mounting way are simple; no strain gauge is used, and correction on a result is not needed; and the test process is independent from the operation process of the fan, therefore, stopping of the fan is not needed.

The present invention relates to a method and apparatus for determining radio link failure between the UE and the eNB in a wireless communication system. Particularly, the present invention provides a method and apparatus for determining radio link failure efficiently in such a way that the UE measures the radio link quality of the anchor carrier, the radio link qualities of the aggregated carriers, and the radio link quality of neighbor cells in order, and determines whether the radio link quality fulfills a predetermined condition.

A session identification unit (11) determines a session to which an incoming packet belongs, while a session relay unit (12-1-12-N) relays between a session with a transmission terminal and a session with a reception terminal. A packet scheduler (13) instructs and controls the delivery of packets from each session relay unit (12-1-12-N), and a delivery control unit (14) delivers packets from each session relay unit (12-1-12-N) based on the instruction. In the session relay unit (12-1), a transmission session processing unit (121-1) processes a session for transmitting data to the reception terminal, and a transmission buffer (122-1) stores received data until the end of a transmission. A reception session processing unit (123-1) processes a session for receiving data from the transmission terminal.

The invention relates to an unmanned corn harvester, and belongs to the technical field of unmanned aerial vehicle application. An unmanned aerial vehicle flies in low altitude over the unmanned corn harvester which performs corn harvesting operation, the lower face of the front portion of the unmanned aerial vehicle is provided with an electro-optical pod, a high-pixel digital camera installed in the electro-optical pod performs full-automatic photography work by aiming at the corn harvester which harvests corn and surrounding corn field, an image sensor of the digital camera inputs acquired aerial image information of grain field into a first electronic computer to be stored and imaged, and a digital image is input into a flight control computer to guide flying of the unmanned aerial vehicle. The aerial image information of the grain field is input into a second electronic computer through a first wireless communication device in the unmanned aerial vehicle, radio waves and a second wireless communication device in the unmanned corn harvester to be stored and calculated, and a calculated result is input into an unmanned self-control driving device to control a corn harvesting table arranged on the front portion of the unmanned corn harvester to perform operation of harvesting the corn.

The present invention discloses a method and a device for transmitting data. According to the technical solution provided by the present invention, no actual end-to-end multi-bearer connection is established between a terminal and a network side, but the terminal, when locally transmitting a data packet, simulates a multi-bearer mechanism to establish multiple virtual service channels on a bearer and performs priority-based scheduling between the service channels. Through virtual multi-bearer, the present invention can balance service QoS with resource utilization under the condition that the network or the terminal does not support the multi-bearer capability or the multi-bearer capability is restricted.

The invention relates to the field of distribution transformer room monitoring, in particular to non-electricity monitoring terminal equipment, non-electricity monitoring management equipment and a non-electricity monitoring device for a distribution transformer room. The monitoring terminal equipment comprises a noise sensor, a vibration sensor, a camera set, an environmental data acquisition board, a monitoring terminal host, a data storage unit and a wireless transmission unit, wherein the environmental data acquisition board is connected with the noise sensor and the vibration sensor; the monitoring terminal host is connected with the environmental data acquisition board and the camera set; the data storage unit is connected with the monitoring terminal host; and the wireless transmission unit is connected with the monitoring terminal host. According to the equipment and the device, non-electricity parameters in the distribution transformer room are detected and monitored; the monitoring terminal equipment processes data acquired by each sensor, and transmits the processed data to the monitoring management equipment in a general packet radio service/third-generation (GPRS/3G) way; the monitoring management equipment can give an alarm for discovered abnormal data; and staff can also analyze the data transmitted by the monitoring terminal equipment to judge whether a transformer is in a safety running state or not.

Disclosed is a demultiplexer for demultiplexing a multiplexed stream, obtained on time division multiplexing a plurality of elementary streams. A buffer controller, forming this demultiplexer, writes a multiplexed stream, beginning from a location specified by a data write pointer of a ring buffer, configured for storing data of the multiplexed stream, in the manner of an endless loop. On receipt of an ES1 readout request, an ES1 readout control unit takes out, from an ES1 readout pointer storage unit, a readout pointer, as a start point of retrieving an area in the ring buffer where the oldest ES1 is stored. The ES1 readout control unit then retrieves and reads out the ES1, with a location specified by the ES1 readout pointer, as a start point, and sends the ES1, thus read out, to the source of the request. The ES1 readout control unit then updates the ES1 readout pointer and the data leading end pointer.

A method of transmitting voice frames, via a transmission channel reserved for voice data, by a transmitting terminal generating voice frames using a voice signal is proposed. Such a method includes steps of: obtaining non-voice data; selecting voice data from the voice frame according to configuration data obtained beforehand relative to the transmission of non-voice data on the reserved channel; constructing of a degraded voice frame by replacing selected voice data with non-voice data; transmitting the degraded voice frame via the reserved channel to a receiving terminal. On the receiving terminal side, a method of managing voice frames coming from the transmitting terminal is proposed including the steps of: detecting a non-voice data header included in the voice frame; extracting, from the voice frame, of non-voice data, according to configuration data read in the header; transmitting of extracted non-voice data to a processor of non-voice data.

The invention provides a remote ammeter reading system and method, which do not depend on the Internet, is higher in safety and lower in cost, and do not need too much IP addresses and mobile communication account resources, as well as an intelligent ammeter adopted in the ammeter reading system. According to the invention, as the system does not depend on the Internet, network hackers can not easily invade the system, so that the safety is higher; meanwhile, IP addresses are not required too much, and a plurality of intelligent ammeters can be connected with one mobile communication account, so that the occupation of mobile communication account resources is less; and arranging a meter mobile communication module, such as a GSM (Global System for Communication) module on each intelligent ammeter is unnecessary, and the cost is lower.

A master-slave communication system for a communication switch is provided. The system comprises a master controller generating commands and receiving status signals and slave devices associated with the master controller. Each slave receives commands, executes local commands responsive to the commands and generates status signals for the master controller. Each slave has a communication arrangement for signals transmitted between it and the master controller. The arrangement comprises a communication controller associated with the master controller. The communication controller receives commands, transmits commands to each slave, receives status signals and provides information relating to the status signals to the master controller; also the controller has a communication link which transmits commands to each slave and the status signals to the controller. The system allows local commands executed by the slaves to replace other commands directed by the master controller to the slave. Further, each slave communicates independently with the master controller.

The invention discloses a data transferring system and a data transferring method of an intelligent metering device. The data transferring system comprises a plurality of intelligent metering devices, power supplies embedded in all the intelligent metering devices, a data acquisition module, a data transmission module, wireless terminal equipment adaptive to the intelligent metering devices in the same area, and a remote monitoring host, wherein the power supplies supply power to the data acquisition module and the data transmission module, the data acquisition module acquires data of the intelligent metering devices, the data transmission module can transmit the data to the wireless terminal equipment wirelessly in a close range, and the wireless terminal equipment transmits the data to the remote monitoring host in a master control room wirelessly and remotely, and the remote monitoring host is used for recording and processing data. The data transferring method comprises the steps of presetting the meter reading time by the data transmission module, acquiring data of all meters in the same network segment in a time-phased manner by the data acquisition module, and transmitting the data to the wireless terminal equipment by the data transmission module in a close range, and remotely transmitting the data to the monitoring host wirelessly by the wireless terminal equipment for recording and processing. The data transferring system and the data transferring method are applied to the field of intelligent metering devices.

The invention relates to a control method for cross-links wireless relaying street lamp passing, which includes: perform street lamps grouping, mark serial numbers on each street lamp set in each group according to the sequence of both sides cross-wise; a control center sends out control order to a signal receiving module on the street lamp; the signal receiving module stores the control order in the storage module through a processing module, after receiving the control order and at the same time, the processing module starts to inquire the serial number of the street lamp set, extract corresponding order from the storage module according to required serial number and deliver the order to an execution module; write the street lamp set serial number on corresponding position in the control order and re-store the revised control order into the storage module; after certain delay time, the processing module extracts the revised control order from the storage module and sends out the control order, which will be received by the receiving module on the street lamp behind. The invention has the advantages of less investment, convenient and flexible operation and good reliability.

The invention discloses an agricultural wireless sensor network system. The agricultural wireless sensor network system mainly comprises a sensor network and a cloud storage network, wherein the sensor network mainly comprises terminal nodes, routing nodes and a coordinator, the sensor network protocol forwards data of the terminal nodes between the routing nodes, the terminal nodes are powered by batteries, and the terminal nodes and the routing nodes enter the total power dissipation mode during data transmission and receiving and shift to the sleep mode after completion of the data transmission and receiving; and the cloud storage network comprises a cloud storage server, cloud monitor software and sensor monitor software. By adopting the agricultural wireless sensor network system, the data of the terminal nodes can reach to the objective nodes through different paths, so that power consumption is lowered, and cloud storage networks using clustering technology design have good scalability.