508 results about "Wireless network interface controller" patented technology

The invention provides an indoor range finding and positioning method based on MIMO-OFDM channel state information. A present commercial WiFi network card based on OFDM is fully utilized, channel state information CSI is obtained by a client at a position to be measured, an MIMO system whose receiving / transmitting end includes multiple antennas is combined, a free-space path loss model based on MIMO-OFDM is provided, the line of sight LOS distance between a WiFi access point AP of an indoor anchor point and a user at the position to be measured is calculated, and finally the position of the user is obtained by a classic three-side positioning method. The method is based on the multi-antenna WiFi AP which is used most widely at present and a mainstream wireless network card based on OFDM, and can realize rapid, simple and efficient indoor range finding and positioning.

The embodiment of the invention discloses a method for identifying validity of an access point, a system thereof and an access point discriminating server, wherein the method comprises the following steps: identity information of a wireless access point connected with a user wireless network card and user wireless network card information are received through a TCP / IP network; the obtained wireless access point identity information is compared with stored valid access point information; the obtained user wireless network card information is compared with stored valid wireless network card information; and comparison results are transmitted through the TCP / IP network, so that the validity of the wireless access point connected with the user wireless network card is determined according to the comparison results. According to the embodiment of the invention, updating of an AP device is not needed, and a certificate issued by a third party is not needed in a validity verifying process either, so that the whole validity verifying process is simple and rapid, and realization costs are reduced.

The invention discloses a traffic statistic method. An address space for storing traffic data of a user is set in a wireless network card. The method comprises the following steps: in a set statistical cycle, counting the uplink traffic and the downlink traffic after the wireless network card is accessed to the network; and updating traffic data, stored in the address space of the wireless network card, of the user which is accessed to the network. In addition, the invention also provides a method for automatically computing network charge, which comprises the following steps: detecting updated charge standard in a real time mode or periodically; in the set statistical cycle, counting the uplink traffic and the downlink traffic, and updating the traffic data corresponding to a current user; and in a set charging cycle, according to the network charge standard and the traffic data of the current user, computing the network charge of the current day and / or the current month. Correspondingly, the invention also provides a device for traffic statistics and automatic computation of the network charge. The method and the device can accurately count the traffic when the user uses the same wireless network card to surf on line on a plurality of computers.

The invention provides a system and a method for automatically testing a wireless fidelity (WIFI) module and relates to the communication device technology. The system and the method solve the problem of high cost caused by the fact that a frequency analyzer is adopted and setting up of a testing environment is complex during testing of the WIFI module in the existing communication device. The technical scheme is that the system for automatically testing the WIFI module comprises a testing terminal with a wireless local area network card and at least one communication device comprising the tested WIFI module, a WIFI testing program is arranged in the communication device, and a testing management program is arranged in the testing terminal. The system and the method for automatically testing the WIFI module has the advantages that a large amount of labor interference is not required, and the system and the method are applicable to testing of the WIFI module in the communication device.

The invention relates to a WLAN access authentication method base on a certificate and SIM, in which the certificate of a WLAN terminal and the certificate of an access point are verified; the WLAN terminal and the access point negotiates on a secret key; a user authentication is carried out on the WLAN terminal based on the SIM. The invention also relates to the WLAN access authentication system base on the certificate and the SIM, which includes a WLAN terminal on which a wireless network card and a SIM card are arranged, a certificate authentication server used for authentication the certificates of the WLAN terminal and the access point; a user database used for storing the user data; a SIM authentication server used for authenticating based on the SIM according to the user data; a user authentication point used for checking whether the WLAN terminal passes the authentication or not. The user authentication point can either be the access point or an access control point. On the premise that the current network is slightly transformed, the invention realizes mutual authentication, confidential transmission of the data as well as a judge right of user service data belonged to the WLAN terminal and the WLAN access point based on a digital certificate.

The embodiment of the invention discloses an energy saving method for enabling a mobile terminal and a wireless access point to be correlated and a device, which can be applied to a mobile terminal. The method comprises steps: when entering a wireless local area network is realized and a beacon sent by the wireless access point is not scanned, a self wakeup signal transmission module is used for broadcasting a wakeup signal externally, and thus after the wireless access point receives the wakeup signal via the self wakeup signal receiving module, a response signal is fed back to the mobile terminal; the response signal fed back by the wireless access point is received; a target wireless access point in data communication with the mobile terminal is determined; and correlation between the mobile terminal and the target wireless access point is built, and data communication is carried out. When the embodiment of the invention is applied, after the wireless access point receives the wakeup signal transmitted by the mobile terminal, a CPU and a wireless network card are only waked up to be in a working state, correlation with the mobile terminal is thus built, data communication is carried out, and energy consumption of the wireless access point in the wireless local area network can be reduced.

The invention discloses a WLAN (Wireless Local Area Network) wireless network tester and a testing method thereof. The WLAN wireless network tester comprises a data acquisition card driving module, a WinPcap packet capturing driving module, a packet capturing analysis module, an acquisition testing module, a dial testing module, an item drive testing module and a test reporting module and is provided with a bottom layer driver, an intermediate layer call library and a user interface layer, wherein the bottom layer driver is set up by sufficiently utilizing an existing WLAN driver; the intermediate layer call library directly calls a WinPcap message capturing module and a 802.11 wireless message analysis and statistics module; the user interface layer is used for carrying out testing of service performance by actual operation of testing personnel and generating a detailed test report. The invention also provides a WLAN wireless network performance testing method. The invention provides a reliable, visual and systematic tool capable of being used for carrying out testing, evaluation, verification and optimization on a complex WLAN environment for the testing personnel.

The invention discloses a switching method, a system and a wireless network card for vehicle-mounted communication. The method comprises the following steps that: a physical wireless network card is changed into a virtual wireless network card which communicates with two access points (APs) through two statistic timing analyzer (STA) ports in a time division multiplex manner, so the switching between one physical wireless network card and two APs is realized. In the embodiment scheme of the invention, additional hardware equipment is not required, and a generated switching time delay is not a physical time delay but only a time delay related with the processing ability of the wireless network card, so the generated time delay is very short and data dropout and communication interrupt are avoided.

The present invention provides a method for remotely controlling household appliances comprising: storing corresponding relation between household appliance identification information, operation action instructing information and control signal encoding format in a wireless network card integrated with a remote control circuit; a terminal sending a remote control command to a specified wireless network card, the remote control command carrying at least identification information of a controlled household appliance and operation action instructing information; and after receiving the remote control command, the wireless network card analyzing the remote control command and sending a control signal in a corresponding encoding format to the controlled household appliance using the remote control circuit according to the carried identification information of the controlled household appliance, the operation action instructing information and the locally stored corresponding relation. The present invention further provides a wireless network card.

The invention discloses a multi-node channel scanning and distribution method in a wireless network. The multi-node channel scanning and distribution method in a wireless network is used for multi-node united channel scanning and unified channel distribution during the united transmission process when a plurality of wireless local area network cards are bound at the same node in a wireless network, especially an IEEE 802.11n / ac wireless local area network (WLAN) so as to realize adaptive selection of nonadjacent channels with different bandwidth and higher quality. The method utilizes a 5GHz frequency range WLAN as a return channel, and comprises an initialization channel scanning process and a periodicity channel scanning process, wherein the initialization channel scanning process traverses all the channels on the 5GHz frequency range; the periodicity channel scanning process only needs to scan a work channel where each wireless local area network card is; therefore, the scanning time is saved and negative influence on all the work channels is avoided; and at the same time each node utilizes multi channels to transmit data unitedly, so that the transmission bandwidth is expanded and the throughput of system is improved and the method can overcome the defect that the channel quality of part of frequency range is low so as to cause the overall performance of the system is reduced as a single continuous aggregation channel is used to transmit data.

A method, apparatus, and computer instructions for identifying signal strength in a wireless network card. The wireless network card includes a housing, a bus interface, a transceiver, a data buffer, a display device, and a control unit. The bus interface is located inside the housing, wherein the bus interface provides a connection to a data processing system. The transceiver is located inside the housing. The transceiver sends and receives data from a wireless connection. The data buffer is connected to the bus interface and the transceiver, wherein the data buffer holds data for transfer between the bus interface and the transceiver. The display device is located on the exterior housing of the wireless network apparatus in a location for viewing by a human user. A control unit, located within the housing, controls the transfer of data through the data buffer, identifies the signal strength for the wireless connection, and displays the signal strength on the display device.

The invention provides a method for realizing cross-channel roaming switching of a wireless terminal in a WLAN. The WLAN network is at least formed by one SDN controller and a plurality of programmable APs, the adjacent APs work on different channels, and each AP is provided with two same-frequency wireless network cards. When the wireless terminal is far away from an original AP, a controller firstly adjusts an auxiliary wireless network card channel of a neighbor AP of the controller to a wireless terminal work channel in order to acquire a signal intensity value of the wireless terminal; secondly, one neighbor AP is selected as a switching target AP through a switching strategy, and a virtual AP is transferred to a target AP; and finally, the original AP is commanded to issue a channelswitching announcement. After the wireless terminal receives the channel switching announcement, the wireless terminal switches the channel to the target AP channel. After the channel is switched, thewireless terminal can directly transmit user data with a new AP. The wireless terminal only needs to switch the channel in the whole switching process, and the time is within a few milliseconds, so that a purpose of fast cross-channel roaming switching of the wireless terminal in the WLAN is achieved.

A system and method for wireless waking computing devices over a computer network is provided. A signal is broadcast over the network that includes one or more device specific wake-up data sequences. Each device specific wake-up data sequence includes multiple iterations of the hardware address of the wireless network card associated with that device. While in a reduced power or “sleep mode”, the wireless network card monitors wireless channels for packets containing a wake-up data sequence. If a wake-up data sequence is received, the sequence is matched against the hardware address information for that network card. If a match is determined, the network card sends a signal to the computing device causing full system power to be restored. A signal is sent to the network confirming that the device has been successfully woken from the sleep mode.

The invention is suitable for the technical field of the digital television and provides a top box system for a digital television. The top box system of the digital television includes a top box of the digital television and a remote controller. The top box of the digital television includes a microprocessor chip and a bus interface. The top box of the digital television further includes a wireless network card. The wireless network card is connected with the microprocessor chip through the bus interface. The remote controller further includes a CPU and a wireless RF chip. The CPU of the remote controller controls the wireless RF chip to communicate with the wireless network card of the top box of the digital television through a wireless transmission protocol. The invention solves the problem that complex data lines are need to be connected when the top box of the digital television is used for carrying out the functions like video on demand, webpage browsing, network game, video and voice, etc., in the prior art.

The invention, which belongs to the technical field of identification, relates to a deep learning identity recognition system and method based on channel state information of a wireless network. The deep learning identity recognition system is composed of a wireless signal transmitter, a wireless signal receiver, a control terminal and a cloud server. The wireless signal receiver and the wirelesssignal transmitter are equipped with wireless network cards and are arranged in a room at an interval. The wireless signal transmitter is used for sending a wireless signal with CSI information; the wireless signal receiver is used for acquiring wireless network channel state information in an environment and uploading the information to the cloud server. According to the system provided by the invention, the blank of passive identity identification application is filled; and an application example is built for deep-learning-based passive recognition and positioning. The system can be appliedto fields of personnel attendance, smart home intrusion detection, patient monitoring and the like widely.

The invention discloses a distributed wireless synchronous zinc oxide lightning arrester online monitoring apparatus. The apparatus comprises a cloud server, station wireless servers, lightning arrester leakage current acquisition units, reference voltage acquisition units, a network terminal and an onsite terminal. The cloud server is a bought or rented cloud-end server and runs lightning arrester monitoring management server software; each station wireless server comprises a wireless local area network access module, a radio frequency clock time service main station, a wireless mobile network communication module, a master control module and a battery; and the lightning arrester leakage current acquisition units and the reference voltage acquisition units each comprises a voltage transformer, a voltage signal conditioning circuit, an AD, a CPU, a GPS / BD clock time service module, a radio frequency clock synchronous module, a wireless network card, an antenna, a display screen and a battery. The apparatus provided by the invention is applied to online monitoring of the states of metal oxide lightning arresters, the work states of all the lightning arresters are uploaded to the cloud server through networks, and equipment states are checked through random networking of onsite terminals.

The invention discloses an unmanned plane data relay device based on a mobile data network and a method thereof. The unmanned plane data relay device comprises an airborne radio, multiple mobile base stations, a data relay server, and a ground station computer for sending an instruction, wherein each mobile base station comprises a base station radio for receiving the data sent by the airborne radio and sending a control instruction from the ground station computer, a mobile wireless data network card, a base station computer, and a data acquiring unit installed in a base station computer; the base station and the airborne radio are in wireless communication; the base station computer is respectively connected with the mobile wireless data network card and the base station radio; the data acquiring unit is used for connecting the base station computer to the internet through the mobile data wireless network card; the data relay server is connected with the mobile base station, and comprises a relay program module; the relay program module is in wireless connection with the mobile wireless data network card; a client program module is installed in the ground station computer; and the ground station computer is connected with the data relay server.

The invention relates to a network technology. The invention solves the problems of a traditional household network which is established on the basis of the network television that the cost of the network television is high, and provides a network television system with a routing function, and the invention adopts the technical scheme that a wireless network card and a wired network card on the existing network intelligent television can be used for realizing the routing function. The network television system has beneficial effects that the cost is saved, and the system is applicable to the network television.

A lamp, comprising a base of the lamp configured with a wireless transmission component. The wireless transmission component is adapted to having an electric circuit enabled to implement wireless signal reception\transmission. A power cord is connected to a power supply circuit of the electric circuit. An aerial circuit of the electric circuit is connected to a metal stand of the lamp or to a metal frame of a lampshade, therewith enabling a connection to be made between a signal transmission port of the wireless transmission component and wired network equipment. Furthermore, the lamp is structured such to implement wireless signal transmission through linking the wireless transmission component with equipment having a wireless network card.

The invention discloses an auxiliary driving vehicle gateway for multi-CPU hard isolation of intelligent interconnection. The auxiliary driving vehicle gateway comprises a vehicle security communication system and a vehicle information analysis and control system, wherein the vehicle security communication system comprises a vehicle gateway double-wireless network card structure composed of an inter-vehicle wireless communication module and a vehicle domain wireless communication module, and a vehicle owner mobile terminal, and the vehicle security communication system carries out CPU control by an I.MX6Q processor; and the vehicle information analysis and control system carries out CPU control by an Exynos4412 processor, and comprises a driving route identification module, a driving behavior analysis module, a vehicle information collection module and an intelligent vehicle controller. The auxiliary driving vehicle gateway disclosed by the invention can realize the communication security of the vehicle gateway, realize driving security by driver fatigue state analysis based on Opencv face recognition and driving route recognition and analysis, as well as effectively resisting against Sybil attack and other various types of attacks from a hardware level to prevent hackers from invading the vehicle gateway to obtain vehicle information and controlling the vehicle.

The invention provides a method and system for testing the throughput of a wireless network card in a wireless local area network. The method comprises the following steps of: integrating an Iperf.exe tool in a wireless access point (AP); establishing an Iperf.exe tool call instruction in the AP; mounting a wireless network card to be tested on a PC (Personal Computer), wherein the PC is connected with the AP in a wireless manner through the wireless network card to be tested; and operating the own Iperf.exe tool by the PC and calling the Iperf.exe tool on the AP through the Iperf.exe tool call instruction simultaneously so that the throughput test of the wireless network card to be tested is completed through wireless communication between the PC and the AP. In the embodiment of the invention, communication is carried out between the AP used as the server end of the Iperf.exe tool and the client of the PC in the test, so that the throughput of the wireless network card can be tested through only one PC, and therefore, the test environment is greatly simplified and the test preparation work is reduced.

The present invention relates to a communication volume regional distribution method in the wireless mobile self organizing network measurement. The procedure is: an aerial vehicle is used to collect data in the air above the target area; the flight track and the investigating area are positioned through the GPS and the wireless network card on the aerial vehicle, the signal intensity of the communication node is measured, and the distance between the communication node and the investigating position is calculated through a signal intensity formula; the central position of the measured communication node is positioned by utilizing position information of the nodes on the two unparallel edges in the communication scope of a communication node and the distance information; the communication volume of various communication node is identified through the communication volume of the communication node on the flight track acquired by the wireless equipment according to the MAC address. The present invention can be applied in the investigation to the military conduction center of the hostile party by a pilotless airplane in the military battlefield environment, and the existence of the hostile party military conduction center is judged through the intensity degree of the communication volume; the present invention can be also used to detect the communication conflict scope of the mobile node, and used for the adjustment, assessment and test of the routing protocol in the wireless mobile self organizing network.

The invention discloses a method for automatically operating a CDROM function on USB network card equipment, which comprises the following steps: S1 for generating a drive mirror image in ISO format, wherein the drive mirror image comprises an automatic operating file and a setup created by the automatic operating file; S2 for placing the drive mirror image into a file system of the USB network card equipment; S3 for connecting the USB network card equipment with a computer, and then enumerating USB CDROM equipment, automatically operating the setup, judging whether a configuration program is installed or not, and if the configuration program is installed, switching the USB network card equipment into a network card mode by the computer, if not, switching the USB network card equipment into the network card mode after the configuration program is installed; and S4 for enumerating the network card equipment by the computer, and then installing a network card drive by the setup after detecting new hardware. The method changes pure wireless network card equipment into wireless network card equipment with a CDROM function, thereby saving the cost and having more flexible and convenient use.

A monitoring method based on a wireless network telephone monitoring device with a distributed structure relates to a voice monitoring system, in particular to a telephone monitoring system based on a wireless network with the distributed structure and a method of realizing the same. The telephone monitoring system includes a plurality of sniffer terminal modules(103) and a long-distance monitoring center module(108), wherein the long-distance monitoring center module(103) is connected with a plurality of sniffer terminal modules(108) through a wired / wireless link, and the long-distance monitoring center module(103) receives the captured VoWLAN data transmitted by the sniffer terminal modules(108), while the sniffer terminal modules(108) is long-distance controlled by the long-distance monitoring center module(103). The present invention realizes the professional VoWLAN monitoring for original voice monitoring. The device locates an embedded monitoring equipment within the range of a wireless lan according to the transfer characteristics of signals diverging in a wireless network, and the only marked address of a wireless network card(MAC Address) acts as the unique identification of a VoWLAN user. The media data is transmitted to the monitoring center to be analyzed and restored thus realizing the voice monitoring.

The invention relates to industry wireless sensor network field, and provides a method to increase the reliability of the industry wireless sensor network. The method includes installing a plurality of wireless network cards at the sensor terminal node, initially setting up all the network cards in turn for the terminal node, and initially generating a network card communication quality queue for the terminal node. In the network card communication quality queue, the network card with best quality is assigned as the current master working network card, the other network cards are the backup working network cards for the node. Timely update the network card communication quality queue of the terminal node, switch the network card according to the network card communication quality queue, and use the network card with best quality to transmit the data. During the period that the network card communication quality queue of the terminal node is updated, if the current master working network card communicates abnormally, then switch to the backup network card for the data transmission by the quality sequence from high quality to low quality in the network card communication quality queue until the data is successfully transmitted. The method increases the data transmission reliability of the industry wireless sensor network, reduces the control system cost, and is particularly suitable for the industry control field with abominable environment.

The invention relates to a method and a device for automatically controlling lamps. The method is as follows: the IC chips connected with each lamp are automatically controlled by a computer capable of transmitting wireless signals through a wireless LAN. Efficient range for receiving signals transmitted by the wireless LAN is required to cover the area where the controlled lamps are laid out. The device comprises a wireless LAN control system which consists of a computer and a wireless LAN adapter, an IC chip capable of receiving the wireless control signals and a lamp connected with the IC chip. The invention is mainly aimed at dealing with problems in the prior method that if the number of the lamps is increased, the number of output ends and control lines increases at the same time, which complicates the hardware structure; if the coverage of lamps is enlarged, the length of control lines is lengthened, and too much and long control lines brings technical difficulties in construction and maintenance. The invention is advantageous to control a great number of lamps at lower cost.

The utility model relates to a mobile medium-based external connection supervisory system and method, more particularly, the monitoring system and method to monitor the external computer connection. The system and method can monitor the computer user's internet connection equipment such as the modulator demodulator, the ADSL dialing equipment, the double-network card, the wireless network card. As the host machine with the mobile medium is communicated with the internet, the alarm will be sent to external connection monitoring server and the network connections will be automatically cut off. The violated machine can be accurately positioned through the e-map of the external connection monitoring server; also, the management personnel can be informed via the short message, so as to effectively fight against, hacker, pommelled horse, virus and internal information leakage. The utility model is applicable to such departments as home government, public security, privacy, banking, negotiable securities and scientific research.

The invention discloses a wireless multi-network integration method which can be used for achieving integration of a plurality of wireless network cards to achieve bandwidth convergence. The wireless multi-network integration method mainly comprises the steps that (1) an automatic dialing portion mainly identifies the network cards automatically and conducts automatic dialing, (2) a network card information obtaining portion mainly obtains information of effective network cards dynamically, (3) a load balancing portion mainly achieves balanced scheduling on each dialing network card according to real-time statistics of the flow of each dialing network card, (4) a disconnection reconnection portion mainly achieves disconnection reconnection and deletes invalid network cards, and (5) a WiFi sharing portion mainly shares integrated bandwidth resources through the WiFi. Finally, the integration of the network cards is achieved to achieve the bandwidth convergence. In the wireless multi-network integration, the bandwidth resources are integrated, and the whole coverage rate and reliability can be improved.