12results about How to "Easy networking" patented technology

The invention provides a device and method for preparing a high-temperature-resistant multi-period fiber grating. The device comprises a femtosecond laser, a shutter, a variable attenuator, a cylindrical lens, a phase mask plate, a broadband light source, an optical fiber and a spectrograph. A femtosecond laser pulse emitted by the femtosecond laser passes through the cylindrical lens and the phase mask plate and forms interference fringes; different tensile forces are applied to the two ends of the optical fiber, the interference fringes are focused on an optical fiber core for inscribing, and the tensile forces are released after grating inscribing; the operation is repeated, the tension is released after each time of inscribing, and a plurality of fiber bragg gratings with different periods can be generated on a single optical fiber; therefore, the multi-period fiber grating array capable of monitoring the distributed temperature is formed.

The utility model discloses an air curtain machine with multiple communication modes. The air curtain machine comprises a control module, a first wired module, a second wired module, a wireless module and a configuration module, the configuration module comprises a first dial switch and a second dial switch; one end of the first dial switch is connected with a first general IO port of the control module, and one end of the second dial switch is connected with a second general IO port of the control module; the first dial switch and the second dial switch generate configuration signals through dial and transmit the configuration signals to the control module; the control module selects the wireless module, the first wired module or the second wired module as a communication module for communication according to the configuration signal. According to the utility model, different communication modes are set in the air curtain machine. And the configuration module is utilized to facilitate selection of a proper communication mode by installation personnel, so that later networking is facilitated. And the installation and networking convenience of the whole air curtain machine is improved. The ventilation device is mainly used in the technical field of ventilation equipment.

The application provides a power grid management system adaptive networking method and device based on a heterogeneous dual-mode network, which comprises the following steps: a proxy coordinator accesses a central coordinator through a wired link, the central coordinator acquires the position and data processing capacity information of the proxy coordinator; a wired link is established between each proxy coordinator, and a wireless networking request is sent to the central coordinator through the wired link; the proxy coordinator broadcasts according to the access permission, and establishes a wireless link with the central coordinator or the proxy coordinator matched with the access permission; a site accesses the proxy coordinator through a wired link, the proxy coordinator acquires the maximum data volume of the site and calculates the load volume after the site accesses, and determines the feedback access permission or forwards the wireless networking request to the adjacent proxy coordinator according to the load volume, until the wireless connection between the site and the proxy coordinator is established. The application has the advantages of convenient networking process, high networking efficiency and coordination accuracy, strong stability and the like.

The application discloses a deep-sea agile communication networking and real-time detection system and relates to the technical fields of underwater communication and optical fiber sensing. The system comprises a water surface buoy system and an underwater system. The water surface buoy system comprises a buoy body, a battery unit, a cable guide joint, a junction box, a cable winch, a solar charging plate and a satellite communication unit. The battery unit, the junction box and the cable winch are arranged in the buoy body, the cable guide joint is arranged at the bottom of the buoy body, and the solar charging plate and the satellite communication unit are arranged at the top of the buoy body. The deep-sea agile communication networking and real-time detection system can be flexibly used in deep-sea sea areas where communication networking or detection is needed, has high integration, is convenient to use and low in cost, can be laid and recovered by using a general marine vessel, can cover several thousand square kilometers of seabed by using a single system, can be conveniently networked between multiple systems to expand the use range, and can be flexibly laid according to actual needs.

The invention provides a multifunctional automatic test system and method, and the system comprises an automatic test platform, a network switching device, and a multifunctional test platform, the multifunctional test platform is connected to the automatic test platform through the network switching device, and is connected with a tested device through a test interface; the automatic test platform is used for storing and managing application programs and test cases of the equipment and counting and querying test results; the server is used for querying matched application programs and test cases after receiving an automatic test request sent by the multifunctional test platform, packaging the application programs and the test cases and sending the packaged application programs and the test cases to the multifunctional test platform; the multifunctional test platform is used for acquiring identity information of the tested equipment and uploading the identity information to the automatic test platform; and receiving an application program and a test case issued by the multifunctional test platform, burning the application program into the tested equipment, executing the test case to test the tested equipment, obtaining a test result, and uploading the test result to the automatic test platform.

The invention discloses a waveguide coaxial coupling circularly polarized antenna, and relates to the technical field of antennas, the waveguide coaxial coupling circularly polarized antenna comprises a ridge waveguide, a PCB coupling structure and a PCB radiation structure, the PCB coupling structure is fixedly arranged above the ridge waveguide, the PCB radiation structure is arranged above the PCB coupling structure, and the PCB coupling structure and the PCB radiation structure are isolated through an isolation wall; an upper coupling cavity is formed in the upper surface of the ridge waveguide, a lower coupling cavity is formed in the position, close to the upper portion of a ridge waveguide cavity, in the ridge waveguide, the upper coupling cavity and the lower coupling cavity are communicated through a gap, the lower portion of the lower coupling cavity is communicated with the ridge waveguide cavity through a through hole, and a coaxial probe is arranged in the through hole, communicated with the ridge waveguide cavity, of the lower coupling cavity. According to the waveguide coaxial coupling circularly polarized antenna provided by the invention, a PCB coupling + PCB radiation form is adopted, the size of the antenna unit is reduced, compact layout is realized, and the whole antenna unit is good in performance and convenient for networking.

The utility model relates to the technical field of gas explosion devices, in particular to a communicating vessel special for a gas explosion inflation pipe network. The communicating vessel comprises a main pipe body which is used for being connected with a gas storage tank connecting pipe. The flow dividing pipe is communicated with the main pipe body, the flow dividing pipe and the main pipe body are integrally formed to form one of a T-shaped structure, a Y-shaped structure or an E-shaped structure, and the wall thickness of the main pipe body and the wall thickness of the flow dividing pipe are the same and range from 3 mm to 5 mm. By means of the communicating vessel, the filling time of liquid substances on a gas explosion site can be shortened by at least one fifth, under the condition that other conditions are basically the same, the working efficiency of gas explosion inflation networking is improved, and economic benefits are obvious. The device is convenient to connect, simple to use, smooth in pipe network, safe, efficient, good in air tightness and very worthy of popularization and application of gas explosion operation.

The present invention discloses a wireless sensor monitoring network for underground monorail cranes, including a coordinator aggregation node, a data display processing device, and a plurality of brake block monitoring nodes, a tie rod stress monitoring node, a carriage vibration monitoring node, and a routing relay node; wherein the brake block monitoring node, the tie rod stress monitoring node, and the carriage vibration monitoring node are respectively connected to the routing relay node through a universal communication control module, the routing relay node is connected to the coordinator aggregation node through a universal communication control module, and the coordinator aggregation node is connected to the data display processing device through a universal communication control module. The present invention arranges nodes at various locations of the locomotive body to monitor the braking, vibration, and tie rod status of the monorail crane, make up for the monitoring loopholes of the electrical control system, and uploads the node monitoring data and the locomotive electrical control system data to the locomotive control room through the mine tunnel wireless communication base station, so as to realize real-time monitoring of the operation status of the monorail crane.

The invention discloses a digital planting control system for aeroponic cultivation. The digital planting control system comprises a control unit, a spraying unit, an EC unit and a water level unit, the control unit adopts two-stage control, the two-stage control comprises a PLC (Programmable Logic Controller) and a touch screen computer control, the PLC is used for automatically controlling the opening and closing of the water pump and the plurality of electromagnetic valves, and the touch screen computer control uses a window system, is connected with a network and is used for manually or remotely controlling the opening and closing of the water pump and the plurality of electromagnetic valves; the spraying unit can determine the spraying time interval according to different temperatures and illumination, and the spraying interval time is prolonged at night by utilizing plant characteristics; according to the method, the simple planting procedure is simplified, and the growth condition above the roots is recognized in combination with AI in the later period, so that more professional fertilizer supply suggestions are given, planting personnel are really liberated, and whole-course automatic planting is achieved.

The present invention provides a method for scheduling a regulating reservoir system based on a centralized control mode, comprising the following steps: S1, upgrading and renovating the automation foundation of the drainage regulating reservoir; S2, setting a set of start and stop liquid level values ​​for the PLC program; S3, automatically judging in real time whether the liquid level of the regulating reservoir exceeds the warning value and whether an abnormal situation occurs; S4, when the inlet and outlet water indicators are abnormal or an emergency occurs, enter S5, and when everything is normal, enter S6; S5, manual intervention, manual scheduling of the start and stop of the pump station pump unit and the regulating reservoir pump unit; S6, automatic operation, the PLC automatically judges the start and stop of the regulating reservoir pump unit according to the preset start and stop liquid level values. With the industrial computer as the upper control core, the production intranet and network security equipment are planned, a remote control system based on a dedicated network is established, and a reliable PLC is used as the lower control core to build a local control system to ensure that the drainage system can run uninterruptedly for a long time when the remote control system is abnormal.

The present invention discloses a belt conveyor state monitoring method and system based on distributed optical fiber temperature-vibration coupling, the monitoring method comprising: obtaining belt conveyor DAS data through a single-mode optical fiber distributed acoustic wave sensor and a DAS demodulator, and obtaining belt conveyor DTS data through a multi-mode optical fiber distributed temperature sensor and a DTS demodulator; obtaining absolute temperature data through DTS data; obtaining low-frequency DAS data through filtering and denoising of DAS data; respectively deriving the absolute temperature function and the low-frequency DAS data with respect to time to obtain a distributed temperature gradient function based on DTS and a distributed temperature gradient function based on DAS; and comprehensively determining belt conveyor faults through DAS data, DTS data, and temperature gradient data for DTS and LF-DAS data. The present invention can combine distributed optical fiber temperature sensing technology and acoustic wave sensing technology, and obtain more accurate and timely belt conveyor fault identification results through the coupling of temperature information and vibration information.

This invention discloses a BeiDou communication terminal with an RJ45 network interface, belonging to the field of BeiDou terminal equipment technology. The BeiDou communication terminal includes a BeiDou positioning circuit, a BeiDou communication circuit, a microcontroller processing circuit, a serial-to-RJ45 converter circuit, and a power management circuit. The BeiDou positioning circuit receives BeiDou positioning signals and outputs positioning data. The BeiDou communication circuit receives and transmits BeiDou short message data. The microcontroller processing circuit is connected to the BeiDou positioning circuit, the BeiDou communication circuit, and the serial-to-RJ45 converter circuit, respectively, to parse, group, and forward the positioning data and short message data. The serial-to-RJ45 converter circuit converts serial port data into RJ45 interface data and converts data input from the RJ45 interface back into serial port data. This terminal, while retaining BeiDou positioning and short message communication capabilities, adds an RJ45 network interface, enabling access to shipboard local area networks and improving upon the problems of short transmission distance, insufficient anti-interference capabilities, and limited connectivity with network devices in existing terminals.