34results about How to "Many nodes" patented technology

The invention relates to a wireless intelligent light control system, comprising a main controller, a first bridge connector and a light controller, the first bridge connector and the light controllerhave the function of transmitting and receiving ZigBee wireless signals, wherein, the main controller connected with the first bridge connector is used for transmitting light control command to the first bridge controller; the first bridge controller is used for converting the light control command into a ZigBee wireless light control signal which is transmitted to the light controller; and the light controller is used for receiving the ZigBee wireless light control signal and setting light scene according to the commands, which are used for operating the keys and / or buttons on the light controller, contained in the ZigBee wireless light control signal, and preset correspondence of the keys and / or buttons on the light controller and the light scene. The wireless intelligent light controlsystem of the invention can meet the requirements of short communication distance, small transmission data volume, multiple nodes, flexible networking and low power consumption of the wireless systemin home environment.

The invention provides a remote warehouse monitoring and alarming device based on ZigBee and a microprocessor, and relates to a remote warehouse monitoring and alarming device. The device comprises a system host and a remote controller, wherein the host is provided with a rectangular shell; a liquid crystal display screen is arranged on the front side of the host; an infrared receiver is arranged at the lower left corner of the front side of the host; a temperature-humidity-smoke sensor and a data acquisition window are arranged at and formed in the upper part of the right side of the host; a buzzer is arranged at the lower part of the right side of the host; the upper left side of the host is covered with a solar photovoltaic panel; a sharp-flash indicator light is arranged at a position close to the display screen of the upper right side of the host; a ZigBee antenna is arranged at a position away from the display screen of the upper right side of the host; a GPIO interface is connected with an MSP430FR5962 microprocessor in the host; the interior of the host comprises an MSP430FR5962 mainboard, the temperature-humidity-smoke sensor, the sharp-flash light, the buzzer, the display screen, the infrared receiver, a ZigBee module, a ZigBee wireless network antenna and a photovoltaic power generation management and battery power supply part. The remote warehouse monitoring and alarming device is capable of reminding local staff to handle or evacuate in time.

The invention discloses acousto-optic synchronous wireless fire safety evacuation equipment. The equipment at least comprises a plurality of single machines which are wirelessly networked with a central control device, wherein each single machine is in signal connection with a temperature detection device and a smoke detection device respectively; the single machine at least comprises a network wireless transmitting and receiving module, a program control board and a laser generation and control device; the laser generation and control device is used for providing a laser guide pattern and at least comprises a laser generator and a lens which is driven by a step motor; a replaceable pattern card is arranged between the laser generator and the lens; and the single machine also comprises an audio play device. The acousto-optic synchronous wireless fire safety evacuation equipment of the invention realizes intelligent system linkage and active indication, greatly improves the safety standard, reduces the possibility of casualties, has high industrial generalization capacity and has the advantages of many nodes, flexible allocation, high adaptability and high reliability.

The invention discloses a wireless networking cloud access control system which comprises access control machines applied to cells and access control modules matched with the access control machine for use so as to achieve cloud access control and cloud talkback functions. The access control modules comprise an access control module with an LoRaWan function; the access control module with the LoRaWan function consists of an access control machine portion, an LoRa gateway, a management platform and a mobile phone terminal; the access control machine portion comprises a networking portion; the networking portion is in wireless communication with the LoRa gateway; each access control machine in each cell is connected in a wireless mode with the LoRa gateway; and the LoRa gateway takes charge of connecting communication information of the access control machines to a cloud server platform by the Ethernet or a 4G network. According to the wireless networking cloud access control system disclosed by the invention, an LoRaWan wireless narrow band networking technology which is remote and low in power consumption, has a great amount of nodes, is low in cost and supports a star topology is adopted; and the technical defects of conventional access control are perfectly overcome.

The invention discloses a fire field temperature measuring device and method based on a near-infrared band colorimetry. The device comprises an upper computer, a calibration plate, a trigger driving circuit, a supporting structure, a window lens, a sub lens, a first industrial camera, a second industrial camera, a first lens and a second lens. The sub lens, the first industrial camera, the secondindustrial camera, the first lens and the second lens are all mounted inside the supporting structure. A window is arranged on the side surface of the supporting structure, and the window lens is arranged on the window. The first industrial camera, the second industrial camera, the trigger driving circuit and the calibration plate are all connected with the upper computer. The first industrial camera and the second industrial camera are all connected with the trigger driving circuit. The measuring device provided by the invention is simple in structure, convenient to use and accurate in measurement structure.

The present invention discloses a gate-level circuit simulation based key node extraction method. The method mainly solves the problems of low searching efficiency, inaccurate node state range restoration and an excessively high duplication rate in the prior art. The method comprises: acquiring a connection relationship of a gate-level circuit; by simulating the gate-level circuit, generating a state of a corresponding gate-level node, and calculating a ratio of states of key nodes 0 and 1; extracting a frequent subcircuit of the gate-level circuit; restoring, by D flip-flop DFF nodes extracted from the frequent subcircuit, a node of the gate-level circuit; in combination with the number of the node restored by the D flip-flop DFF nodes and the ratio of the states of 0 and 1, calculation weighted values, and extracting the D flip-flop DFF node with the greatest weighted value; and on the basis of the extracted D flip-flop DFF nodes, sequentially extracting subsequent key nodes. By use of the method disclosed by the present invention, the duplication rate of the the restored node is decreased, the searching efficiency is increased, the state range of the node stored by the key nodes is expanded, and the method can be used for error detection of the gate-level circuit, and tracking of internal signals is realized.

The invention discloses a smart security alarm system for an animal farm. The smart security alarm system comprises an automatic security alarm system, a video monitoring system, a mobile phone client side and a computer client side, wherein the automatic security alarm system comprises four or more wireless infrared probes arranged on a farm wall and an automatic alarm connected with the wireless infrared probes which are connected with the mobile phone client side; the video monitoring system comprises two or more video cassette recorders and cameras which are arranged on the farm wall and connected with the mobile phone client side and the computer client side. The smart security alarm system has the advantages of being multiple in network nodes, good in reliability, low in cost, friendly to the environment, wide in market needs, and capable of performing ream-time data transmission, real-time monitoring, remote alarm and remote control, and establishing network easily. Furthermore, by means of the smart security alarm system, a user can check farm conditions and receive automatic alarm information through the mobile phone client side whenever and wherever possible.

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 discloses an audio transmission system based on a tree topology structure, and relates to the technical field of vehicle-mounted audio. The system comprises a host used for obtaining topological information of an audio transmission network and establishing a routing table; the audio transmission network comprises a plurality of audio transmission nodes forming a tree topology structure, and the audio transmission nodes are used for acquiring and analyzing data frames sent by other audio transmission nodes, transmitting the data frames to a target node according to a routing table, generating data frames to be sent according to acquired audio data and control information and sending the data frames to the target node. Querying a routing table to transmit a data frame to a target node; and the peripheral equipment is used for applying the target node connected with the peripheral equipment to process the audio data and collecting the audio data and the control information. The tree topology structure system is constructed, the same routing protocol is adopted for the control information and the audio data, transmission of the audio data and the control information between any nodes is achieved, and the data transmission efficiency and the system flexibility are improved.

The invention discloses a cache-enabled D2D communication joint recommendation and caching method, and the method comprises the following steps: constructing an optimization function by taking the minimum file acquisition cost of a user as an optimization target under the conditions that the caching capacity of the user is limited and the recommendation quantity is limited, and obtaining a recommendation scheme for each user by adopting an annealing algorithm; obtaining a caching scheme of each user by using a knapsack algorithm, and performing iterative optimization on the caching scheme andthe recommendation scheme to obtain an optimal solution of the recommendation scheme and the caching scheme, thereby realizing minimization of the average cost of the users. According to the method, recommendation and caching are combined, the influence of different preferences of users on caching is reduced, the proposed recommendation and caching scheme can reduce the average cost of the users,the users are stimulated to use D2D communication, and the network pressure is reduced.

The invention provides a Zigbee-based intelligent hog house environmental data collection device and relates to an environmental data collection device. A liquid crystal display screen is arranged onthe front surface of a host of the device, an infrared receiver is arranged at the left lower corner of the front surface of the host of the device, the left side of the upper part of the host is covered with a solar photovoltaic panel, and five sensors are arranged on the right side of the upper part of the host and sequentially are a temperature sensor, a humidity sensor, a carbon dioxide concentration sensor, an illumination sensor and an ammonia concentration sensor from left to right; a Zigbee antenna is arranged on the right side of the host; and the host internally comprises an MSP430FR2000 main board, a liquid crystal display screen, the infrared receiver, a Zigbee module, a Zigbee wireless network antenna, the temperature sensor, the humidity sensor, the carbon dioxide concentration sensor, the illumination sensor and the ammonia concentration sensor, a photovoltaic power generation board manager and a battery power supply. The Zigbee-based intelligent hog house environmentaldata collection device is very suitable for the upgrading and rebuilding of existing hog houses. By intelligent collecting data, the environmental condition of a hog house is fed back in real time, sothat the human cost is greatly saved, and an intelligent hog house is possible.

The invention relates to a sweeper intelligent manual operator, which comprises a power supply 1 and a master control module 4. The sweeper intelligent manual operator also comprises a data processingmodule 2, a power supply processing module 3, a data update module 5, an indicating lamp 6, a display screen 7 and a button matrix 8. The indicating lamp 6, the display screen 7 and the button matrix8 are connected with the master control module 4. The beneficial effects are that the manual operator realizes mobility control by means of a modbus communication protocol; the manual operator has the advantages of being simple in wiring harness, stable in transmission, portable and having multiple nodes; and equipped with the 2.4 inch dot LCD 128*64 display screen, the manual operator allows anoperator to monitor current state of the equipment and set parameters in real time outside a driving cab.

The invention consists of physical bus link unit, bus transceiver, embedded bus controller, power unit. It uses twisted-pair wire or power line, and makes communication, management, signal collection and driver output in large area, long distance, multi kinds and multi node through lightening node and equipment node relating to application of inner illuminant passing through outside.

The invention discloses a sewage treatment plant data acquisition device based on Zigbee and a microprocessor and relates to a data acquisition device. The sewage treatment plant data acquisition device based on Zigbee and the microprocessor comprises a system host and a remote controller, wherein the host is a rectangular shell; a liquid crystal display screen is arranged on the front side of the host; an infrared receiver is arranged at the bottom left corner of the front side of the host; four sensor interfaces are formed in the top of the right side of the host; the four sensor interfaces comprise a sensor interface a, a sensor interface b, a sensor interface c and a sensor interface d which are successively arranged from top to bottom; a solar photovoltaic panel is covered on the left side of the top of the host; a Zigbee antenna is arranged on the right side of the top of the host; the infrared receiver is used for receiving remote control signals of an infrared remote controller, setting the host and giving various operation commands. The device is characterized by transmitting data by using the characteristics of rapid speed and flexibility in networking and low energy consumption of ZM5161P2-2C, is small in size, continuous in operation and easy to maintain and use, and is capable of achieving Zigbee wireless transmission without wiring.

The invention provides a stage control system based on ZigBee. The system comprises a master console, wherein the master console is connected with a ZigBee master controller through RS485; the ZigBee master controller is connected with a slave control unit through the RS485; the ZigBee master controller controls light through a ZigBee network; the ZigBee master controller controls a motor through the ZigBee network and a filed bus network; and the ZigBee master controller controls audios and videos through the ZigBee network and a digital optical fiber transmission network. According to the system, through combination of a ZigBee network protocol with the existing Fibernet (the digital optical fiber transmission network) and the filed bus (the field bus network), the rapid coordination actions between devices of a stage is finished, and high reliability, high timeliness and low power consumption are achieved.

The invention discloses a breeding method for cultivating an indica type three-line strong high-quality restoring line in multiple tiller positions. The method comprises the following steps of: (1) selecting one of parents with more than or equal to 18 main stem total leaves, taking the parent as a female parent set, and preparing an Fe generation; (2) selecting an individual plant which has more than or equal to 18 main stem leaves, excellent comprehensive agricultural shape and moderate growth period from an F2 separation generation; and (3) planting the selected individual plant according to the strain, screening from 3-5 generations to obtain a new strain, performing continuous combining ability measurement and leaf age observation in 2-3 years on a stable strain with more than or equal to 18 main stem total leaves by using Zhenshan 97A, and integrating the results to obtain the indica type three-line strong high-quality restoring line. The obtained indica type three-line strong high-quality restoring line has more than or equal to 18 main stem total leaves, multiple tiller positions, high primary tiller rate, early tiller and early germination, a foundation is laid for obtaining full and large ears, the total spikelet number in unit area of the restoring line can be effectively increased, and a guarantee is provided for obtaining high per unit area yield.

The present invention provides a cruise ship LED programmable balcony light control system and method, wherein the system includes a control terminal, a PLC controller, a plurality of main vertical zone flow bars, a plurality of bus bars, a plurality of light control devices and a plurality of LED lights; The control terminal is connected to the PLC controller, and the PLC controller is sequentially connected to each lamp control device through the main vertical zone flow bar and the bus bar; each lamp control device is connected to at least one LED lamp; the control terminal includes input equipment, a coding database, and a data processor , a display and a control signal receiving device, and the code database is used to store lamp control codes that can form target patterns or characters. A cruise ship LED programmable balcony light control system and method according to the present invention can change the light switch status and light color through programming, so that the balcony light can also be used as a landscape light, so as to use the balcony light to form patterns and characters to shape the overall image of the cruise ship And the purpose of good atmosphere.

A medical vaseline dressing is composed of a fabric made of leading yarn, twisted warp and weft through weaving and a vaseline layer. Its advantages are big mesh and high elasticity, hydroscopicity and air permeability.

The present invention relates to a smart door lock control device, system and method based on LoRa communication. The device includes a processor, a power supply module, a door lock control module and a card reading module, and the processor is respectively connected to the power supply module, the door lock control module and the card reading module. The device also includes a first memory connected to the processor for storing a list of permission lists; and a LoRa communication module connected to the processor for sending card swiping data, requesting to update the permission list and timing to request synchronization of local time. The present invention completes data transmission through the LoRa communication module, has the advantages of long transmission distance, many nodes and low power consumption, and makes the smart door lock more stable and reliable.

The invention provides a low-power-consumption solar power supplying greenhouse environment control device based on Zigbee, wherein the low-power-consumption solar power supplying greenhouse environment control device relates to an environment control device. The low-power-consumption solar power supplying greenhouse environment control device is based on a ZigBee wireless communication module ZM5162P21-3C and an ultralow-power-consumption single-chip microcomputer MSP430FR3210. The low-power-consumption solar power supplying greenhouse environment control device utilizes the characteristic ofquick and flexible networking and low power consumption of the ZM5162P21-3C for performing data transmission. The low-power-consumption solar power supplying greenhouse environment control device performs real-time controlling on a heating device, an irrigation device, an illumination device and a ventilation device for adjusting a plane growth environment in the greenhouse by means of characteristics of ultralow power consumption, high expandability and abundant interfaces of the MSP430FR3210. A low-power-consumption device and solar energy are supplied for supplying power. A universal controller output interface can be connected with an environment adjusting device, thereby performing real-time controlling on the environment adjusting device in the greenhouse for adjusting the environment of the greenhouse. All environment adjusting operations are finished through transmitting an adjusting instruction by a host computer through the ZigBee network. No man intervention is required andmanpower cost is greatly saved. Furthermore realization of an intelligent greenhouse becomes possible.

A medical vaseline dressing is composed of a fabric made of leading yarn, twisted warp and weft through weaving and a vaseline layer. Its advantages are big mesh and high elasticity, hydroscopicity and air permeability.

The invention discloses a remote intelligent control system for electric vehicle charging piles, which includes front-end monitoring data acquisition equipment, ZigBee transmission equipment, a central monitoring system and mobile terminal equipment; the front-end monitoring data acquisition equipment includes power data acquisition equipment, user information acquisition equipment and human-computer interaction equipment; the ZigBee transmission equipment establishes a wireless network by itself, and establishes a two-way communication link between the front-end monitoring data acquisition equipment, the central monitoring system and the mobile terminal; the central monitoring system includes a server unit. The control system disclosed in the present invention enables the electric vehicle driver to accurately and conveniently know the relevant information such as the location of the nearest charging pile, the quantity that can be charged, the voltage and current status, the charging standard, etc., which is convenient and quick, saves work efficiency, and is beneficial to the charging of the electric vehicle Large-area and large-scale promotion of piles. Save costs, save laying a large number of cables and labor costs.

The invention discloses an ordered charging control system and method based on master-slave RS485 communication, and belongs to the technical field of ordered charging control. The system comprises a master device and a plurality of slave devices. The main device is connected with a gateway electricity meter in a station and collects an active power value in the station in real time. The master device is connected with the plurality of slave devices through an RS485 communication network; the master device is configured with a master device address, a slave device address range and a station output power threshold; and the slave equipment is configured with an equipment address. The method comprises the steps that a master device collects the total active power of a station and operation data of each slave device in real time; the master device determines the output power of each slave device based on a station output power threshold preset in advance in combination with the total active power and the operation data of each slave device; and the master device transmits the determined output power of each slave device to the corresponding slave device through an RS485 communication network. According to the invention, additional ordered charging equipment is prevented from being added to each charging station.

The invention discloses a cabinet-type three-phase dual-input load balancing power supply system. The power supply frame of the power supply system includes a control module, a PSU slot, a power supply input distribution circuit board and an output circuit. The PSU power supply module is inserted into the power supply frame. The PSU slot is connected to the power supply input distribution circuit board, output circuit and control module; AC power is input to the power supply frame, the power supply frame supplies power to the PSU through the power supply input distribution circuit board, and the PSU outputs the voltage required by the rack server. It is delivered to the rack server by the output circuit; the control module controls and monitors the status of the input and output, and can manage the status of the PSU. The invention is applied to the smart rack of the cabinet-type server, which can realize the three-phase two-way power supply load balance in the computer room, and at the same time, the power supply for the whole cabinet server is more stable, the cost is lower, the occupied space is smaller, and the number of server nodes that can be supported is more. Advantages make the product more competitive in the market.

The invention discloses a radio low-power consumption transmission module applied to a TMS trap wireless detection system. The transmission module is characterized in that data transmission is performed by a LoRa technology, so that low power consumption can be kept; a communication distance is prolonged remarkably; and meanwhile, an ultrahigh building penetration capability is achieved. Moreover, the LoRa technology has the characteristics of large quantity of nodes, high capacity and low power consumption (an ordinary dry battery has a service life of over 10 years, and only dozens of [mu]A of current is consumed in a power saving mode), so that various problems encountered in leakage detection transmission of valves in plants can be solved perfectly by the LoRa technology.

The invention discloses a time determinacy distributed spacecraft electronic system design method which solves the problems that an existing spacecraft electronic system is insufficient in expansibility and poor in data transmission time determinacy. The method comprises the steps of adopting a hierarchical analysis method to determine function distribution of a spacecraft electronic system; selecting a time-triggered Ethernet as a backbone network of the electronic system, adopting a distributed architecture on a network topology structure, and distributing system computing functions to a plurality of pieces of equipment; planning a task to be executed by an electronic system, estimating the use condition of system resources in advance, and realizing static configuration of computing resources in a pre-allocation manner; and planning a message transmission mode according to the priority, so that the high-priority message has higher time determinacy and transmission reliability under the condition of meeting the required bandwidth.

The invention discloses a DRSS-based distributed low-interaction positioning method special for an unmanned cluster, and relates to the technical field of passive positioning, the method is suitable for an unmanned cluster cooperative positioning scene comprising an unmanned cluster and a target signal source, and the advantages of a large number of unmanned cluster nodes, high moving speed and the like are comprehensively considered. A multi-node mutual test DRSS and single-node self test DRSS combined positioning framework is provided, two energy domain positioning parameters of I-DRSS and M-DRSS are jointly utilized, a WLS-based single-moment positioning solving algorithm is provided, and a new unmanned cluster self-cooperation and mutual cooperation positioning solving thought is constructed. According to the invention, the dependence of a traditional positioning technology on real-time transmission of a large amount of original sampling data can be effectively overcome, and target positioning can be carried out in a low-interaction environment, a denial environment, a weak network signal and other communication link blocking conditions.

The present invention discloses a gate-level circuit simulation based key node extraction method. The method mainly solves the problems of low searching efficiency, inaccurate node state range restoration and an excessively high duplication rate in the prior art. The method comprises: acquiring a connection relationship of a gate-level circuit; by simulating the gate-level circuit, generating a state of a corresponding gate-level node, and calculating a ratio of states of key nodes 0 and 1; extracting a frequent subcircuit of the gate-level circuit; restoring, by D flip-flop DFF nodes extracted from the frequent subcircuit, a node of the gate-level circuit; in combination with the number of the node restored by the D flip-flop DFF nodes and the ratio of the states of 0 and 1, calculation weighted values, and extracting the D flip-flop DFF node with the greatest weighted value; and on the basis of the extracted D flip-flop DFF nodes, sequentially extracting subsequent key nodes. By use of the method disclosed by the present invention, the duplication rate of the the restored node is decreased, the searching efficiency is increased, the state range of the node stored by the key nodes is expanded, and the method can be used for error detection of the gate-level circuit, and tracking of internal signals is realized.

The invention discloses an alarming device of an electric power device. The alarming device comprises a housing body and a main controller. A rectifier, a voltage reducing device, a charging direct current power supply module, a wireless early warning sensor and a detection module are arranged in the housing body. Alternating current AC is provided for the input end of the rectifier. The direct current output by the rectifier is subjected to voltage reduction through the voltage reducing device and then sent to the charging direct current power supply module. The charging direct current powersupply module provides power for the whole alarm. The wireless early warning sensor and the detection module are connected with the main controller. The main controller is in communication connectionwith a communication device through a communication control chip. The beneficial effects are that by setting the wireless early warning sensor, the safety and the reliability of the alarming device are quite high; it is convenient for maintenance workers to maintain the alarming device; and in a wireless communication way, alarming is achieved, there is no need to arrange indoor communication lines and installation is simple. According to the invention, the alarming device gives out alarming precisely, is simple to achieve and low in cost and has quite high promotion value.