73results about How to "Large network capacity" patented technology

A method for deploying a cellular wireless communication network is provided. The method consists of: providing one or more micro base stations; autonomously deploying the micro base stations using a network access point linked to a cellular wireless communication network; and enabling configuration of the micro base stations to execute network operation commands from a network controller associated with the wireless communication network. Another aspect consists of enabling cooperation and network connectivity between micro base stations and other base stations, including micro base stations and large network base stations. Network connectivity to one or more cellular communication terminals associated with individuals or businesses subscribing to the cellular wireless communication network is enabled. A wireless network is also provided which is configurable to link a cellular wireless network through a high data transmission connection so as to define at least one access point between the micro base station and the wireless network. The network includes a wireless interface and receives operation commands from a network controller for configuration of micro base stations, to support the linking of cellular wireless terminals to the wireless network via the wireless interface by operation of the micro base station, as an intermediary. A corresponding system and computer readable medium is also provided

The invention discloses a wireless learning type infrared repeating system which is convenient to use and a working method thereof. The system comprises a mobile terminal, an infrared repeater, a gateway coordinator and a memory database, wherein the mobile terminal is connected with the infrared repeater through the gateway coordinator, the gateway coordinator is connected with the memory database, and the infrared repeater is controlled by the mobile terminal for extracting a remote control code from the memory database and remotely controlling corresponding equipment. The method is as follows: a processing unit is used for receiving model information of a household electrical appliance set by the mobile terminal through the gateway coordinator, extracting the remote control code from the memory database and transferring the remote control code to the household electrical appliance which is used under the control of the infrared repeater.

The invention discloses wireless parallel test system and test method based on ZigBee, which relate to the technical field of test. The invention solves the problems of large field wiring construction amount and influence of a test signal by field wiring quality caused by the fact that the traditional test system acquires a test signal in a wire communication way. The test system forms a ZigBee network by adopting main wireless communication equipment and a plurality of wireless communication modules; the main wireless communication equipment is connected with a test control terminal by adopting a UART interface; and the wireless communication module in each kind of test equipment is connected with a built-in test module by adopting the UART interface. In the method for realizing test of the test system, the test control terminal is connected with the main communication equipment by the UART interface to realize the transmission of a test command and a test result, and the main wireless communication equipment and a plurality of kinds of equipment to be tested realize data communication by adopting the ZigBee network. The invention is suitable for a modern automatic test system, can realize the mutual coordination of hundreds of equipment to realize communication, and has high test efficiency.

The invention discloses a prison staff positioning system based on zigbee technology which comprises a software system and a hardware system, wherein the software system is used for completing the information collection, identification, analysis and transmission; the hardware system consists of a ground surface supervisory control computer, a transmission adapter, a radio frequency base station, a radio frequency card reader, a radio frequency identity card and an antenna, and is used for completing the information collection and identification through a ZigBee wireless network, thus the functions of staff identification and positioning are realized; and the software system and the hardware system support the whole system to run together. According to the invention, through a wireless transmission mode, by utilizing the advantages of high network capacity, low power consumption, short time delay and the like for the system, the system can be well applied to the prison system. The prison staff positioning system plays an important auxiliary role on the prison staff position management, also can be linked with the systems of alarm, videos and the like of the prison security supervisory control software, and can assist the prison supervision staff to supervise the prison daily security conditions effectively.

The invention relates to a fireman individual-soldier system on the basis of a wireless Mesh network framework. The system consists of a wireless monitoring mainframe, a plurality of wireless individual-soldier sub-machines and a plurality of wireless repeaters, wherein the wireless monitoring mainframe consists of a monitoring module and a wireless center node module; and each wireless individual-soldier sub-machine consists of a central processing unit module, a positioning module, a vital sign detection module, a distress call module, an environment condition detection module, a carried equipment detection module and a wireless terminal node module. When the fireman individual-soldier system is applied particularly, firemen wear the wireless individual-soldier sub-machines to enter a fire site or other accident sites and a chief officer monitors information such as postures, motion tracks, vital signs, environment conditions, carried equipment conditions and the like through the wireless monitoring mainframe, so that the intelligence support of a command decision is provided for the chief officer in time and a scientific basis can also be provided for daily tactical training. By the fireman individual-soldier system, the modernization, automation and intellectualization levels of a fire command are improved and the battle damage rate of the firemen can also be effectively reduced.

The invention brings forward an underground parking lot LED illumination and guiding system and method based on a self-networking technology. The system comprises LED light fixtures, a parking path planning guiding system, and LCDs installed in a parking lot and outside the parking lot for displaying parking place information of an underground parking lot, and further comprises parking place detection terminals which are provided with ultrasonic sensors and are installed in parking places, a DALI light modulation system, a center sever with double gateways, and a ZIGBEE wireless communication network composed of ZIGBEE modules. The LED light fixtures are integrated to form radar detection sensors installed at upper ends of travel paths of the parking lot; the center server employs a DALI protocol and the DALI light modulation system for communication and realizes automatic light modulation on the multiple LED light fixtures; and the center server employs a ZIGBEE wireless communication mode to communicate with the multiple parking plate detection terminals. The invention further brings forward a method based on the system.

The invention discloses a wireless vibration and detection alarm system, which comprises a wireless vibration and detection node and a 485 gateway node. The wireless vibration and detection node comprises a vibration signal detector, a RC filter, an A/D signal sampling module, an alarm signal processing module, a radio frequency control module I, and a radio frequency transceiver I, which are connected together in turn. The alarm signal processing module is also connected with a local alarm. The 485 gateway node comprises a radio frequency transceiver II, a radio frequency control module II, a serial data communication module II, a 485 drive circuit, and a 485 interface, which are connected together in turn. The radio frequency transceiver I is wirelessly connected with the radio frequency transceiver II, thereby realizing wireless signal communication between the wireless vibration and detection node and the 485 gateway node. The invention has the advantages that: the advanced wireless sensor network technology and the intelligent routing algorithm are adopted to realize automatic networking and remote control without special setups; a full duplex multi-hop routing mode is adopted in the data communication, thereby bringing about a large network capacity and a large covering surface; the invention overcomes the defects of great difficulty in system wiring, high maintenance cost, poor invisibility, vulnerability to damage, etc. in the prior detection system, thereby being adapted to harsh field environment.

The invention provides a hardware routing table management method and a hardware routing table management device and communication equipment. The method comprises the following steps of: copying routing information, informed by a hardware forwarding device, into a software routing table by using a protocol control device, and configuring the routing information into a hardware routing table; and monitoring the hardware routing table and performing aging and/or recovery treatment on the routing information in the hardware routing table according to a monitoring result. The device comprises a copying module and an aging module and/or a recovery module. The communication equipment provided by the invention comprises the protocol control device, the hardware forwarding device and the hardwarerouting table management device. The method and the device and the communication equipment solve the problem of limited capacity of the hardware routing table in the prior art, expand network capacity and optimize network performance on the premise of not increasing hardware cost or network topology, and make effective and full use of hardware and software resources.

The invention relates to a fan state online monitoring system and method based on an advanced reduced instruction-set computer machine (ARM) and the ZigBee. Online monitoring of the fan operation state is achieved by collecting temperature, vibration parameters, negative pressure and power parameters of a fan. A ZigBee sensor network is used for collecting and transmitting data, and an embedded ARM platform is used for displaying and processing the data. A terminal device of the sensor network is divided into a temperature collection module, a transmitter signal collection module and a communication module. State data collected by the modules are transmitted to a ZigBee coordinator directly or through a router, and the data are transmitted to the embedded ARM platform through the coordinator. Measuring data are read in monitoring software written on the embedded ARM platform, the fan operation state data are displayed through a liquid crystal display (LCD) touch screen, state data and abnormal alarming data are stored through a security digital (SD) card, and a voice frequency module is used for conducting alarming on the operation state exceeding a threshold. The ZigBee sensor network adopts Z-Stack with a protocol stack as TI.

The invention discloses a medium access control system and a medium access control method in a wireless packet network, which mainly aim to solve the problem of the incapacity of an exposed terminal in concurrent communication in the prior art. The system comprises a medium access control module, a received signal resolving module, an antenna, a radio frequency front end, a digital-to-analogue converter, a modulation/coding module, a physical layer frame forming module, an analogue-to-digital converter, an MAC frame extraction module and a physical channel management module, wherein the medium access control module judges whether a channel is idle or not and whether a terminal is the exposed terminal or not in transmission, and if the channel is idle and the terminal is the exposed terminal, transmits an RTS frame and presets expected ACK frame detection according to a known frame; the received signal resolving module executes the expected frame detection, judges whether an ACK is received or not and executes expected frame removal to suppress inter-frame interference; and the MAC layer frame extraction module extracts an MAC layer frame from signals after the expected frame removal. The system and the method have the advantages of simple implementation, high communication concurrence, high network capacity and compatibility with a conventional IEEE 802.11 standard, and can be used for realizing a large-scale wireless self-organizing communication network.

The invention provides an intelligent sewage treatment monitoring system based on ZigBee Internet of Things, comprising a monitoring main station and a plurality of monitoring substations. The intelligent sewage treatment monitoring system is characterized in that: the monitoring main station comprises modules including a wireless communication module, a central processing unit and a monitor; each of the monitoring substations comprises the modules including a wireless communication unit, a data collecting and processing unit, a control unit, a power supply control unit, an equipment monitoring unit and a substation manager. According to the intelligent sewage treatment monitoring system based on the ZigBee Internet of Things, a reasonable network structure is designed according to actual networking requirements; and the cost is low, the power consumption is low, the network capacity is great and a transmission physical space is large. All parameters in a sewage treatment process can be monitored in real time and the treatment process can be adjusted in time so as to achieve the effects of energy saving, water saving and clean production; and reliable implementation of novel environment-friendly technologies including zero discharging, marsh gas recycling and utilization and the like can be realized. Compared with the traditional communication scheme, the scheme adopts a wireless communication manner between field equipment and a central equipment monitoring room, and has the advantages of long transmission distance, good reliability, strong anti-interference capability, cable saving, low construction and maintenance cost and the like.

The present invention provides an ad-hoc network intelligent card, a non-stop toll collection system and an ad-hoc network method thereof, and a non-stop toll collection method. The ad-hoc network intelligent card comprises a main control chip configured to send card identity information, user information and vehicle information obtained from a memory to a Zigbee communication chip, a Zigbee communication chip configured to output the card identity information, the user information and the vehicle information through a Zigbee wireless network, and the memory configured to store the card identity information, the user information and the vehicle information. The non-stop toll collection system comprises a Zigbee network router, a Zigbee network coordinator, a monitoring center, a charge management system, a bank server and an ad-hoc network intelligent card. The two schemes both employ the Zigbee technology, and the problems are solved that a current transportation card is short in communication distance, limited in passage rate and not high in omnibearing location based on the advantages of the Zigbee technology so as to effectively improve the vehicle passage efficiency and traffic intelligence level.

The invention provides a data transmission method, device and system, and an ONU and an OLT. The data transmission method comprises the step that an optical network unit ONU transmits information for interaction with an optical line terminal OLT on any one or more transmission paths in a plurality of transmission paths, wherein the information at least comprises one piece of register information, ranging information, bandwidth allocation and data service information. According to the method, the data can be transmitted on the plurality of transmission paths, the plurality of transmission paths are mutually independent, in the data transmission process, the transmission paths are selectable, so the bandwidth between the OLT and the ONU is improved, and the network capacity of the passive optical network is increased.

Responding to the problems such as terminal concealment / terminal exposure, node loss and the like triggered by multi-channels in channel access of multi-channel wireless network, the invention proposes a channel selection access method applied to multi-channel wireless network. The handshake procedure of the method comprises 3 steps: a source node transmits a request information frame; a destination node responds to a response information frame; the source node once again transmits a selective transmission information frame. The 3 frames all contain channel information, wherein, the request information frame comprises optional channel information for the current data transmission, the response message frame and the selective transmission information frame both comprise data transfer channel information selected by the destination node. The nodes obtain conditions of the channels by inquiring the channel condition form which comprises the channel number, the channel condition and the conformation mark.

The invention belongs to an oil liquid monitoring technology based on an embedded hardware platform and relates to a networking communication method of an on-line wind turbine generator gearbox oil liquid monitoring system. Remote real-time monitoring on water and metal particles in oil liquid of a wind turbine generator gearbox and a viscosity state of the oil liquid can be implemented. Each fan acquires relevant oil liquid quality data through a water sensor, a viscosity sensor and a metal particle sensor of a data acquisition unit of the on-line gearbox oil liquid monitoring system and transmits the data to a Zigbee wireless communication module in a wireless communication unit after the data is processed by a central processing unit. All sub fans route the data into a Zigbee wireless communication module of a main fan in a Zigbee networking mode of a mesh-based topological structure, and finally, the main fan packs all the data in a concentrative manner and remotely sends the data to a server terminal through a GPRS (general packet radio service) wireless communication module. The networking communication method can provide a high-reliability and low-cost effective monitoring measure to a wind turbine generator in a wind power plant, and due to the effective monitoring measure, faults can be found in time.

The invention relates to a sulfur hexafluoride gas monitoring system based on ZigBee wireless technology. Wired transmission is adopted in current monitoring, which has wiring difficulty and high cost. The system comprises a plurality of sulfur hexafluoride monitoring nodes in a monitoring area and a data base station, wherein the sulfur hexafluoride monitoring node is based on the ZigBee wireless technology, and comprises a microprocessor module, a node ZigBee radio frequency chip, a power supply management module and a sulfur hexafluoride gas collection module; and the data base station adopts an advanced RISC machine (ARM) processor structure, and comprises a base station ZigBee radio frequency chip and a general packet radio service (GPRS) transmission module. The system can be used for collecting sulfur hexafluoride and temperature, and has the advantages of high data communication capability and wide network coverage range.

The invention discloses a gateway based on the LoRa technology. The gateway comprises a first LoRa module, a second LoRa module, a first processing unit, a second processing unit, a power management module and a solar power supply device. The first processing unit is connected with the second processing unit, the first processing unit is used for controlling the first LoRa module to communicate with a sensor under the coverage of the first LoRa module and to communicate with the second processing unit, and the second processing unit is used for controlling the second LoRa module to communicate with the sensor under the coverage of the second LoRa module. The first processing unit and the second processing unit control and communicate with the respective LoRa modules, compared with the mode of controlling two LoRa modules through a single main chip, this parallel working mode has the advantages that the LoRa data transmission timeliness and reliability are improved to a certain extent, and the network capacity of the gateway is improved.

The invention discloses rainfall and water level monitoring equipment. According to the invention, a solar energy electric board is used for charging a photovoltaic storage battery which provides a voltage of 12V for a rainfall sensor and a water level sensor and a detection module; the 12V voltage is converted into 5V voltage through a voltage converting circuit, and the converted voltage is provided for the detection module and a GRPS module; the 5V voltage is converted into 3.3V voltage through a voltage converting circuit, and the converted voltage is provided for a communication module, a storage module, and a controller module. With the rainfall and water level sensors, collected water condition information is processed by the detection module, and is transmitted to the controller. The controller transmits the received rainfall and water level condition information to the storage module, and transmits the information to a remote monitoring center through GPRS. The remote monitoring center receives the rainfall and water level condition information, and stores the information to a database. Also, the remote monitoring center provides real-time data displaying, history data analyzing and data enquiring services. The equipment provided by the invention is advantaged in high processing speed, high precision, and good system security.

The invention provides an access satellite determining method and device. The method comprises the steps of on the basis of history energy state parameters of to-be-accessed satellites, determining an energy state parameter of each to-be-accessed satellite in a current time slot; determining a state transfer parameter of user equipment accessing each to-be-accessed satellite in the current time slot; determining state transfer distribution condition of a satellite system composed of the to-be-accessed satellites according to the energy state parameters of the to-be-accessed satellites and the state transfer parameters of the user equipment; and establishing a decision-making model according to the state transfer distribution condition, and determining a target access satellite for accessing the current user equipment in the to-be-accessed satellites according to the decision-making model. According to the target access satellite determined through the method, the network capacity of a satellite system is optimized, and the energy of the satellite system is also optimized. The energy consumption of the determined target access satellite is low; the service life of the satellite system is prolonged; and the technical problem that the satellite system determined through an existing satellite access strategy is relatively high in energy consumption and short in service life is mitigated.

The invention relates to air quality monitoring equipment capable of supporting data remote transmission. The traditional equipment has high cost and limited monitoring range. The air quality monitoring equipment capable of supporting data remote transmission comprises a power source management module, an air quality parameter acquisition module, a microprocessor module and a GPRS transmission module, wherein the power source management module supplies power for the air quality parameter acquisition module, the microprocessor module and the GPRS transmission module; a plurality of transducers in the air quality parameter acquisition module output signals to the microprocessor module after passing through an I/V conversion circuit; and the GPRS transmission module is connected with a USART interface of the microprocessor module. The invention has strong real-time, various data types, wide coverage area, strong communication capacity and high transmission speed.

The invention discloses a method and a device for optimizing network capacity, relates to the technical field of communication and solves the technical problem of the limited TD network capacity in the prior art. The method comprises that a radio network controller (RNC) determines types of access services according to access requirements after main carriers in the Time Division-Synchronization Code Division Multiple Access (TD-SCDMA) network are modulated into data and voice service shared mixed carriers and channels of downlink free time slots are changed into shared channels; accessed carriers of data service access requirements are determined according to the ratio of the number of mixed carrier data service accessed users to the number of High Speed Downlink Packet Access (HSDPA) carrier data service accessed users in the community to be accessed. The method and the device are mainly used for improving the network capacity.

The invention discloses a photovoltaic generation greenhouse with adjustable solar illumination and uniform illumination. The photovoltaic generation greenhouse comprises a greenhouse body, wherein a photovoltaic generation roof and a diffusing glass roof cover the greenhouse; a light intensity detection unit array, a decision making unit and a communication system are arranged in the greenhouse; a plurality of photovoltaic assemblies cover the sunny slope of the photovoltaic generation roof and are uniformly distributed; the euphotic area of the photovoltaic assemblies can be adjusted, and diffusing glass is arranged on the sunny slope without photovoltaic assemblies, so that sunlight can pass through; the light intensity detection unit array is connected with the decision making unit through the communication system and is used for supplying greenhouse illumination data to the decision making unit, and the decision making unit is connected to the photovoltaic assemblies through the communication system and is used for judging the greenhouse illumination data and sending an instruction to the photovoltaic assemblies, so as to adjust the euphotic area of the photovoltaic assemblies and adjust the illumination in the greenhouse. According to the photovoltaic generation greenhouse, photovoltaic generation equipment is arranged on the greenhouse, so that the illumination in the greenhouse can be adjusted, and an obvious shadow of the photovoltaic generation equipment is difficult to form in the greenhouse.

The invention provides a feed link switching method based on global service distribution, which comprises the following steps of: during feed link distribution, sorting all ground stations according to the service volume of an area where the ground stations are located according to the existing service distribution on the ground, and sequentially distributing landing satellites to a plurality of antennas of the ground stations according to priorities; when a landing satellite is distributed to a ground station, according to three parameters of satellite visual time, a feed link rate and an on-satellite load capacity, downloading on-satellite data needing to land on the satellite to the maximum extent while the capacity of a network between the satellite and the ground is optimized, so that the utilization rate of the feed link is improved.

The invention relates to an intelligent remote warehouse data monitoring alarm system and relates to an alarm system. The system comprises a sensor data acquisition device, an intelligent monitoring service platform and a mobile terminal, wherein the sensor data acquisition device comprises a system host and a remote controller, the host has a rectangular casing, a front surface of the host is provided with a liquid crystal display screen, a left lower corner of the front surface is provided with an infrared receiver, an upper portion of a right side surface of the host is a temperature, humidity and smog sensor acquisition data window, a lower portion of the right side surface of the host is a buzzer, an upper left side of the host is covered by a solar energy photovoltaic panel, an upper right side of the host is provided with a flash indication lamp close to the display screen, and an antenna is arranged at the position of the upper right side of the host away from the display screen. The system is advantaged in that temperature, humidity and smog data of a warehouse is acquired through sensors, the data is sent through a ZigBee to an intelligent monitoring platform of a monitoring center in a wireless mode, and non-normal data or advice for a warehouse with possible problems and alarm are provided by the intelligent monitoring platform according to data analysis and data mining of the big data.

The invention relates to a neural network training and image recognition method and device, equipment and a storage medium. The training method comprises the following steps: extracting a neural network model from training data through initial features to obtain an initial feature map of a target object; processing the initial feature map through a first initial recognition neural network model toobtain a first prediction result; processing the initial feature map through a second initial recognition neural network model to obtain a second prediction result; procssing the initial feature mapthrough an initial segmentation neural network model to obtain a segmentation result; and updating the initial feature extraction neural network model according to the first prediction result, the second prediction result and the segmentation result to obtain a trained feature extraction neural network model. Through the process, the network capacity, the generalization ability and the extractionprecision of the feature extraction network model can be increased; meanwhile, the segmentation result obtained by using the model can enable the feature extraction network model obtained by trainingto have higher convergence degree and accuracy.