119results about How to "Short communication distance" patented technology

The invention belongs to the field of intelligent household, relates to an intelligent household control system, and particularly to an intelligent household control system based on ZigBee and cloud computing. A main structure includes an information acquisition and equipment control module, a ZigBee wireless sensing network, a household intelligent gateway, an RFID device, a cloud server, and a mobile terminal device, the information acquisition and equipment control module includes an environment information acquisition sensor and a household equipment controller, a ZigBee coordinator node, a ZigBee router node, and a ZigBee terminal node form a ZigBee three-level tree-shaped wireless sensing network to form an intelligent household network frame. The ZigBee network performs the intelligent regulation and control on the household equipment, the user data is stored and processed via the cloud server, the users' behavior habit is deeply tapped, so that a household control scheme based on the users' behavior habit is generated, the indoor wireless signal radiation maintains at a low level, the main structure is simple, the design conception is ingenious, the application environment is friendly, and the market prospect is wide.

Disclosed is a cable identifying system for accurately discriminating one cable from another on site over a long period of time, the system enabling a cable layer or a cable user, when laying out an RFID built-in cable, to do without manually writing any information in the RFID tags built in the cable. One cable having RFID tags built therein can be accurately realized. The individual ID's of the RFID tags are read and stored in a storage apparatus. When a part of the cable is cut, the ID's of the RFID tags nearest to the both end of the cable are read out, and the ID-related data of the RFID tags in the cut-out cable are recorded on a desired medium or electronic information medium.

The embodiment of the invention provides a wireless network connection establishing method and terminal equipment. According to the embodiment of the invention, wireless network information for accessing a wireless network where first terminal equipment is located is acquired through the first terminal equipment, the wireless network information is sent to second terminal equipment in an NFC method to enable the first terminal equipment to receive a first request message sent by the second terminal equipment according to the wireless network information, and a wireless network connection with the second terminal equipment is established according to the first request message. By making use of the characteristics of NFC such as communication convenience, short communication distance and high reliability, the problems of complex operation and error proneness of configuration in the prior art are avoided, and efficiency and reliability of configuration are improved.

An interrogator with an antenna that allows information exchanges with multiple transponders in a shorter distance of communication, by securing an intensified and uniform electromagnetic energy concentrated on areas near antenna elements. The interrogator is furnished with a sleeve antenna that includes a monopole conductor of ¼ wavelength (free space wavelength) continuously connected to a core wire of a coaxial cable on one end thereof, and a feed point on the other end, in which the sleeve antenna is grounded at the feed point. The interrogator has a plurality of the transponders arrayed near the antenna, and a plurality of the antennas selected by RF signal selectors. The interrogator antenna allows movable body identification such as in a goods management system for identifying multiply arrayed goods.

An object is to reduce power consumption of an analog-digital converter circuit. An analog potential obtained in a sensor or the like is held in a sample-and-hold circuit including a transistor with an extremely low off-state current. In the sample-and-hold circuit, the analog potential is held in a node which is able to hold a charge by turning off the transistor. Then, power supply to a buffer circuit or the like included in the sample-and-hold circuit is stopped to reduce power consumption. In a structure where a potential is held in each node, power consumption can be further reduced when a transistor with an extremely low off-state current is connected to a node holding a potential of a comparator, a successive approximation register, a digital-analog converter circuit, or the like, and power supply to these circuits is stopped.

The present invention provides a communication restriction control system and a communication restriction control method capable of performing communication restriction control depending on circumstances of communication restriction control area. The mobile terminal transmits a response request signal to a radio response equipment provided in the communication restriction control area which transmits a response signal including identification information as a response to the response request signal. A communication system discriminating equipment which is provided with a database in which the identification information is associated with one of allowed communication circumstances, and allowed communication circumstance is determined by referring to the database according to the identification information, and communication restriction control of the mobile terminal according to the determined result is performed.

The present invention provides a network topology structure on a star-cluster double-loop (SCDL), and the structure consists of 4m*2k processing units and 4m switching nodes, wherein, each 2k processing units are connected to form a star network topology structure, therefore, 4m star structures are formed; switching nodes of the 4m star structures are connected to form DL (2m) interconnection network topology structures. The present invention has the characteristics of canonicity, symmetry, planarity, excellent extendibility, lower network cost, simple switching nodes and simple routing policy. According to the present invention, a switching node is connected with four processing units, therefore, communication distance between processing units is reduced, localization feature of the system is improved, delay of the system is reduced and throughput of the system is improved. A novel Johnson coding method can be adopted by the switching nodes and processing units of the present invention, and the method make the coding of the switching nodes and processing units imply information of adjacent nodes and links of the interconnection network; therefore, the route algorithm design is simple.

The invention discloses a display device with an NFC function. The display device comprises a display panel, wherein NFC antenna routing is integrally arranged in the display device; the NFC antenna routing is positioned on one side, with a display surface, of the display panel, and is made from transparent conductor materials. According to the display device disclosed by the invention, the NFC antenna routing is integrally arranged in the display device, made from the transparent conductor materials and positioned on the display surface close to the display panel, so that the sensitivity of an NFC signal is high and the reliability of the NFC signal is high; the NFC antenna routing is not liable to damage and deviate; the NFC antenna routing is made from the transparent conductor materials, so that the NFC antenna routing can be placed in a display area, and the design of a narrow frame of a die set is facilitated.

The invention discloses a least effort delivering zone-spanned virtual cluster multi-hop routing method, and belongs to the field of computer communication networks. In the method, a control message is broadcast to an entire network by a sink by introducing a zone concept based on a low energy adaptive clustering hierarchy (LEACH) protocol according to the characteristics of a clustering multi-hop routing algorithm in a wireless sensor network; the zone to which each node belongs is determined by the node according to received signal intensity; and the direction of the multi-hop routing is specified through the limitation of the zone. During the network polling circulation, when a zone fails to select the cluster, the network generates a complementary cluster at the zone; and when the routing is established, the cluster is virtualized into one node to prevent direct communication between clusters with longer distance and perform the least effort delivering. The method can prolong the survival time of the network, balance the energy consumption of the node of the internet well, homogenize the distribution of dead nodes and expand the network size suitable for the protocol.

The invention provides a method and a device for positioning mobile terminals. The method comprises the following steps: determining at least one mobile terminal serving as a positioning sensor terminal in a cellular network by cellular network equipment; instructing the positioning sensor terminals by an air interface message to search for mobile terminals to be positioned in a near-field communication mode; and when a measurement report reported by any positioning sensor terminal is received, positioning the mobile terminals to be positioned identified by identification information according to a position of the positioning sensor terminal and the identification information of the mobile terminals to be positioned searched by the positioning sensor terminal in the measurement report, or transmitting the identification information and position information of the determined positioning sensor terminal to the mobile terminals to be positioned in order that the mobile terminals to be positioned are positively positioned. The cellular network and a near-field communication technology are combined to perform positioning, so that accurate positioning of the mobile terminals is realized under the situation of saving the overhead of positioning system deployment, and an accurate position of a user can be acquired by a cellular network element.

The invention provides a laser scanning distance measuring device. A rotation platform and a fixed platform are connected through a shaft bearing; rotors are installed on the rotation platform; stators are installed on the fixed platform; a drive transmitting circuit board is installed on the fixed platform; a receiving circuit board is installed on the rotation platform; a hollow transmitting coil is installed on the fixed platform; a magnetic isolating sheet is arranged between the hollow transmitting coil and the drive transmitting circuit board; a hollow receiving coil is installed on the rotation platform; a magnetic isolating sheet is arranged between the hollow receiving coil and the receiving circuit board. Compared with the prior art, the hollow transmitting coil and the hollow receiving coil are tiled in the direction vertical to the rotation shaft so that the vertical height of the laser scanning distance measuring device is shortened and therefore, the occupation volume of the whole structure of the laser scanning distance measuring device is reduced. In addition, when the vertical height of the overall device is reduced, the communication distance of spectrum diode for signal wireless transmission is reduced and therefore, the transmission speed of wireless signals is increased.

The invention discloses an aquaculture wireless sensor network node device and an operation method, and belongs to the technical field of water quality monitoring. The aquaculture wireless sensor network node device and the operation method are suitable for many application occasions such as water quality parameter online detection in aquaculture of Chinese mitten crabs, fish, shrimps, shellfish and the like and used for collecting parameter data of dissolved oxygen content (mg/L) and water temperature ( DEG C) in an aquaculture pond in real time online and sending the data to a wireless sensor network gateway or a wireless sensor network base station and a local terminal in a 433MHz frequency band wireless sensor network communication manner after further changing, possessing and storing the parameter data.

The invention relates to a ZigBee cellular network which is used for effectively reducing the frequency of relay tasks borne by a router positioned near a coordinator in a larger coverage region and ensuring the efficiency and the reliability of network data transmission. The ZigBee cellular network comprises a network gateway and a plurality of ZigBee subnetworks arranged cellularly, wherein wireless transmission according with ZigBee standard or wireless transmission adopting a 433MHz frequency band is adopted between every two adjacent ZigBee subnetworks as well as between the network gateway and the ZigBee subnetwork adjacent to the network gateway. The network gateway receives data from each ZigBee subnetwork and carries out protocol conversion and then carries out wireless communication with an Internet or movable network. All ZigBee subnetworks are arranged cellularly, which effectively shortens the communication distance among nodes in the ZigBee subnetworks, reduces the relay frequency and also reduces the relay frequency among different ZigBee subnetworks during the communication, and ensures the efficiency and the reliability of the data transmission.

The invention discloses an OLED (Organic Light-Emitting Diode) display panel and a manufacturing method. The OLED display panel comprises an OLED screen body packaging cover, a first OLED electrode, an OLED luminous area, a second OLED electrode, an OLED substrate and an insulating protective film, which are sequentially cascaded, wherein the OLED substrate is provided with a first surface facing the OLED luminous area and a second surface facing one side of the insulating protective film; the second OLED electrode is positioned on one side of the first surface of the OLED substrate; an NFC (Near Field Communication) antenna wire is formed on the second surface of the OLED substrate, and is covered by the insulating protective film; light for display is emitted to the side where the OLED substrate is positioned by the OLED luminous area to make the NFC antenna wire be positioned on one side of the display surface of the OLED display panel. According to the OLED display panel and the manufacturing method, the NFC antenna wire is directly formed on the second surface of the OLED substrate, and is positioned on one side of the display surface of the OLED display panel, so that the number of elements and the thickness of a module can be reduced, a manufacturing process can be simplified, production cost can be reduced, an NFC signal is high in sensitivity and reliability, the NFC antenna wire is unlikely to be damaged and deviated, and a narrow-frame design of the module can be implemented.

A non-contact IC tag includes an insulating substrate, an IC tag having an IC chip and a matching-circuit equipped dipole antenna connected with the IC chip, and a first and second parasitic antenna both provided at the other side of the insulating substrate. The matching-circuit equipped dipole antenna has two antenna sections, a connecting terminal section and a matching circuit section. Projection images of the first and second parasitic antennae onto the one side of the insulating substrate respectively overlap at least portions of the two antenna sections of the matching-circuit equipped dipole antenna. The first and second parasitic antennae are made electrically conductive by a connected portion, and the projection images of the first and second parasitic antennae, and the connected portion onto the one side of the insulating substrate do not overlap the IC chip and the connecting terminal section of the matching-circuit equipped dipole antenna.

The invention discloses a gas meter communication networking method and system. Specifically, the system includes: a gas meter, bridge modules, a concentrator and a remote data center. The bridge modules communicate with the gas meter to read the gas data of the gas meter; the bridge modules perform power line carrier communication with the concentrator through a power line, and send the read data to the concentrator; the concentrator communicates with the remote data center through a public network, and sends the received data to the remote data center. The gas meter communication networking method and system provided by the invention have the characteristics of table communication, effective use of existing power lines, no need to occupy additional radio frequency and channel resource, and no radio radiation pollution. Communications relay can be carried out between bridge modules, the communication distance is expanded, and the system scale and capacity are improved.

The invention provides a fast fourier transformation (FFT) parallel method based on a multi-core digital signal processor (DSP) platform. The method comprises the following steps that: a main processor uniformly distributes data of an original point N to be subjected to FFT to all P processors; sub FFT is executed on a point N/P on each processor, and thus FFT results of the previous log2(N/P) levels of the original point N are obtained; and due to data interaction between the processors, so that FFT from the log2(N/P)th level to the log2(N-1)th level of the original point N can be finished. During data interaction, the standard whether the number of the processors meets the equation i%t=i%(2t) is used for selecting an interaction object of the processors, so that the communication distance between the processors is shortest, and the operation efficiency is improved.

The invention discloses a quantum communication networking method and system based on a multi-wavelength entangled light source. The method comprises the steps: by a multi-wavelength entangled light source, generating entangled single photons which are equal in frequency interval and paired; performing wavelength channel configuration on the entangled single photons by using a relatively mature dense wavelength division multiplexing technology in a classical optical fiber communication system; and constructing a quantum network server independent of the users and distributing the entangled photons of each wavelength to each user, thereby ensuring that every two users can share a pair of independent entangled single photons, and finally realizing a quantum communication network in which multiple users are randomly interconnected.

An ID tag capable of communicating data wirelessly, the size of which is reduced, and where the size of an IC chip is reduced, a limited area of the chip is effectively used, current consumption is reduced, and communication distance is prevented from decreasing. The ID tag of the invention includes an IC chip having an integrated circuit, a resonance capacitor portion and a storage capacitor portion, and an antenna formed over the IC chip so as to overlap at least partially with an insulating film interposed therebetween. The antenna, the insulating film and wirings or semiconductor films forming the integrated circuit are stacked, and one or both of capacitors in the resonance capacitor portion and the storage capacitor portion are formed by this stacked structure.