43results about How to "Flexible and convenient networking" patented technology

This invention is a multimedia broadcasting system and its realizing method that facing mobile terminal. It belongs to multimedia broadcasting field. Its feature is that it is based on orthogonal frequency division multiplexingí¬multiple channel system. multiple broadcasting service is provided to mobile terminal by the IFFT of emission terminal and the FFT of receive terminal. The transformation is done by allocating different channels on different sub carrier wave groups by using the frequency range of existing common television broadcasting system and big zone broadcasting type. It can provide media program of scores of channels efficiently and economically, and the utility factor is high. Individualization broadcasting can be realized for different quality needs subscriber. Dynamic power control, modulation, forward error correction encoding and frequency hopping can be realized to ensure the transmission quality. The receive terminal can be simply design and the power consumption can be reduced in this invention.

The present invention provides a split type base station system and its network organizing method and baseband unit, the system separates the baseband unit of the base station with a RF unit, and the RF unit is provided with a baseband RF interface mutually connected with the baseband unit and transmitting data information, so as to form the split type base station system. On the basis of the separation of the BBU and the RFU, the BBU capacity is further divided, each unit is separately allocated; by a dilatancy interface and a baseband RF interface provided by a BBU interface unit, the network organizing of the BBU is flexibly and conveniently realized, the dilatancy reduces the occupation area, reducing operation cost, improving the credibility of the work of the base station system.

The invention relates to an adaptive segmentally controlled tunnel illumination control system and method; the system comprises a tunnel illumination controller, a signal detection unit, a Zigbee network unit, and a plurality of illumination lamp sets; the signal detection unit comprises a vehicle sensor, a vehicle speed sensor, a brightness sensor, a temperature sensor, and a raindrop sensor; the Zigbee network unit comprises Zigbee main node module connected with the tunnel illumination controller, and a plurality of Zigbee node modules respectively connected with the illumination lamp sets; the illumination lamp sets comprise an introduction segment lamp set arranged outside the tunnel, an illumination lamp set arranged in the entrance segment in the tunnel, a transition segment illumination lamp set, a middle segment illumination lamp set, an exit segment illumination lamp set, and a road lamp illumination lamp set arranged outside the tunnel, and also comprise an emergency illumination lamp set. The adaptive segmentally controlled tunnel illumination control system can realize tunnel illumination, satisfies illumination curve demands of human eyes, thus eliminating black frame, black hole and white hole effects.

The invention provides a multifunctional temperature and humidity monitoring system and a method thereof based on a 433MHz active RFID (radio frequency identification) technology, and the system is mainly applied to the field of temperature and humidity monitoring. The system consists of one or more than one central controller and multiple temperature and humidity acquisition labels which are in wireless connection, wherein the central controller comprises a wireless transceiving module and an MCU (micro control unit) central control module; each temperature and humidity acquisition label comprises a wireless transceiving module and a temperature and humidity sensor; the system is provided with a GPRS (general packet radio service) module used for sending short messages for alarm; and in addition, the system also comprises a GPS positioning module capable of monitoring the position and operation track of a carrier vehicle in real time, sending the short messages and uploading temperature and humidity information to an upper layer control system through the GPRS module. The patent of the invention also comprises a temperature and humidity monitoring method used for collecting and displaying the temperature and humidity information, processing alarm information, sending the alarm information to telephones of related persons through the GPRS module and simultaneously processing the data uploaded by a GPS system.

Disclosed is a multimode digital radio-frequency remote system. The system comprises at least one remote covering machine, a baseband router and a plurality of local relays. The remote covering machine is connected with the baseband router, and the baseband router is connected with all the local relays respectively. The baseband router is used for receiving signals of different modes from the local relays, and sending the combined signals to the remote covering machine; and receiving signals from the remote covering machine, and sending the split signals respectively to the local relays of the corresponding modes. The present invention solves the problem that the application of the multimode digital radio-frequency remote system is restricted under the conditions that the local relays of different modes are not in the same place and no optical fiber is connected between the relays, so that the application restriction of the multimode digital radio-frequency remote system is alleviated, and the flexible application of the multimode digital radio-frequency remote system is realized. Moreover, through the present invention, a lot of optical fiber resources are saved, the networking is convenient, and the market prospect is better.

The device comprises two wave separators and two wave synthesizers and line protection unit. Using contained cascaded two 2x2 optical switch, the line protection unit rearranges optical signal in single wavelength or wave band. Thus, operating wavelength or wave band in fault channel of an optical fiber loop can be rearranged to preparative protection wavelength or wave band of another optical fiber loop in opposite direction; or another optical switch can be inserted between two cascaded optical switches to implement flexible local upper and lower speech functions. The invention realizes protection in granularities of wavelength or wave band for two fibers bi-directional line or two fibers one-way line using protected optical add and drop multiplexer system.

An automatic dialing tester for communication network is composed of control module, MS module, speech module, SIM card/UIM card slot, and RJ11 slot. Said control module communicates with the dialing tester's management terminal. Said MS module is connected to control module and GSM/CDMA antenna. Its advantage is high automatization level.

The invention discloses a mining emergency rescue communication method based on a Mesh network technology. The mining emergency rescue communication method is characterized by comprising the following steps: using Mesh routers as a base to constitute a communication network; networking the Mesh routers according to a Mesh protocol to dynamically and automatically establish network-like wireless links; transmitting data according to the distances of the Mesh routers; if the nearest Mesh router is jammed, according to the flow of each of the Mesh routers, selecting the Mesh router with the lowest flow to transmit a data packet; connecting the Mesh routers with mining intrinsic safety type cameras to acquire video image information and with mining mobile terminals to perform voice communication. The mining emergency rescue communication method disclosed by the invention is flexible and convenient for network construction, so as to greatly reduce the network infrastructure cost.

The invention discloses an intelligent traffic light control system based on a PLC and a sensor. The intelligent traffic light control system comprises detectors, a PLC, an east road, a west road, a south road, a north road and a traffic control center; detectors are arranged on the roads toward the east, the west, the north and the south from the crossroad; the detector comprises a sensor node, a common WSN node and a Sink node; the sensor node transmits data and information through a common WSN node; the Sink node transmits the information converging on the WSN node to the PLC for processing; the PLC is connected to the traffic control center through an external network; the Sink node, the common WSN node and the sensor constitute a ZigBee local area network. In the invention, the WSN is adopted as an emerging application technology, and the intelligent traffic light control system is small in volume, low in cost, small in power consumption and flexible in network combination, and the wide application of the invention can change people's life. The intelligent traffic light control system combines the MSN and the PLC, and can determine whether the road in the direction is busy according to the quantity of the stranded vehicles waiting for the traffic light. The intelligent traffic light control system is simple and economic, can effectively ease the traffic jam, improves the passage capability of the traffic intersection and has a good application prospect.

The invention relates to an embedded wireless intelligent sensor for geotechnical engineering monitoring. The embedded wireless intelligent sensor is mainly characterized in that the embedded wireless intelligent sensor comprises a sealing box and an internal sensor circuit; the sensor circuit comprises a collecting and controlling unit, a wireless transmitting module, a power source managing unit, a storage battery and a monitor interface unit. The collecting and controlling unit is connected with the wireless transmitting module, the monitor interface unit and the power source managing unit respectively; the wireless transmitting module is connected with a field server through antennas mounted on the sealing box to realize a function of wireless transmission; and the monitor interface unit is connected with a monitor. The embedded wireless intelligent sensor is reasonable in design, realizes functions of automatic data collection and transmission for geotechnical monitoring, has the characteristics of high automaticity, convenience in networking, low cost and the like, can be widely used in the fields of stability monitoring on natural rock mass geography, side slope and support in ground works, underground tunnels and construction works.

The invention discloses a scheme for carrying out an on-demand networking video conference during a video conference process through a new networking mode. Under a condition of not increasing a MCU resource, a problem during the video conference with multiple meeting places, high dispersion and low bandwidth can be solved. Video conference costs can be effectively reduced and flexibility of the video conference can be increased. The system mainly comprises: the MCU resource, a server, a public network client, a local area network client, an Internet and a local area network. The system is characterized in that: the server guides the public network client to carry out first networking so as to form a series of areas; in the areas, secondary servers guide to carry out second networking. Conference video information provided by the MCU resource performs video conference connection on the public network client through the networking network.

A mobile internet rapid insertion method contains the following steps: Dialing, WAP mobile phone to enter the internet, a mobile exchanger, and on-line data transmitted to wireless lead-in server via the mobile exchanger. The wireless lead-in server transmits on-line data to the internet after a protocol is processed. A system of realizing the above-mentioned method is composed of a WAD mobile phone, a base station, a mobile exchanger and a wireless lead-in server capable of communication protocol processing. The wireless lead-in server is characterized by containing a master control module and lead-in module. This invention has the advantages of rapid connection, flexible network organization capable of being widely used in WAP mobile phone call and other communication equipments to enter the mobile internet.

The invention discloses a method for configuring the network among different areas which support different service, including: Serving RNC receives the updated request of area which is launched by UE and makes a judgment on the request, if the service of the current access-area of UE is different from the service of the initial area of UE, but there is adjacent area with different frequency from the ones of the current access area to support the initial access service, and the adjacent area can be accessed, then Serving RNC updates the areas between the current access area and the adjacent area, otherwise, at first, it updates the areas between the current access area and the initial access area, then hard-switches with different frequency in channel switching process.

The invention discloses an automatic networking method without a master-slave relationship. The method comprises 7 steps: after each device is started, the device automatically generates a temporary device address, and each device sends a handshake signal through a sender device, a receiver device within the communication range judges a sender device address, if the sender device address is the same as a receiver device address, the receiver device updates the sender device address of the sender device in a device address list of the receiver device to achieve successful handshake of the sender device and the receiver device, and the sender device accesses the network of the receiver device; and the sender device sends an ACK signal, any device within the communication range extracts the sender device address from sender device address information after receiving the ACK signal, until the successful handshake of the sender device and the receiver device, and the intra-network communication between the sender device and the receiver device is achieved after the successful handshake.