505 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 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 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 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 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 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 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.

The invention relate to an Ad Hoc network construction method based on an OMAP 3530Mini development board which realizes the Ad Hoc network by using the OMAP 3530Mini development board as a hardware platform and using a wireless local area network card as hardware support. The method comprises the following steps of: manufacturing an embedded kernel suitable for the OMAP 3530Mini development board in the development environment of Ubuntu, adding necessary function in the kernel to adapt the requirement of the Ad Hoc network, manufacturing a simple root file system to finish the basic function of the file system, compiling the driver of the wireless local area network card in an intersecting way so that the driver can be successfully operated on the development board, driving the wireless local area network card to operate, compiling a wireless configuration tool in an intersecting way to perform network configuration on the wireless local area network card, transplanting an AODV (Ad Hoc On-demand Distance Vector) routing protocol so that a node in the network can perform multi-hop communication so as to finally construct the Ad Hoc network, performing point-to-point communication test and multi-hop test on the constructed network, and performing tests of functions for word communication, voice communication, ftp file transmission and the like.