63results about How to "Strong communication function" patented technology

The invention discloses an intelligent watchband which is characterized by comprising a watchband body, a watch supporting frame and a chargeable battery. An overturning display linked with a mainframe device through the Bluetooth is arranged on the watchband body. A microphone, a loudspeaker and a magnetic charging port are arranged in the side wall of the watchband body. A microprocessor, a corresponding storage device, a pinhole camera, a gyroscope accelerometer, an electronic compass and a Bluetooth signal strength detector are further arranged on the watchband body, wherein the microprocessor and the corresponding storage device are used for controlling and managing all components on the watchband body. The intelligent watchband has the advantages that the intelligent watchband is a watchband type personal communication device, wearing habits of people are not changed and people can enjoy the fashion of a watch; in addition, functions of the watchband are expanded to include the strong functions of computing and communication of an intelligent mobile phone; people will not carry all sorts of heavy devices in pockets or on hands any more; a lost intelligent mobile phone or tablet PC can be protected by measuring the strength of Bluetooth signals.

The invention discloses an on-line insulation monitoring system for intelligent medium voltage switchgear and a monitoring method of the system. The system consists of a sensing part and a monitoring part which are connected, wherein the sensing part consists of three ultrasonic partial discharge detection units which are arranged in the dead center of the inner wall of the top surface and the dead centers of the inner walls of two adjacent side surfaces of a switchgear body, and a sleeve leakage current detection unit; the monitoring part consists of a monitoring unit and a station control layer monitoring computer which are connected; a discharge position is approximately located by a triangulation method through the time difference of signals transmitted by the three ultrasonic partial discharge detection units; a 4-20mA ultrasonic signal and a leakage current signal which are detected and converted by the ultrasonic partial discharge detection units and the sleeve leakage current detection unit can be restored, filtered and transformed; and the partial discharge condition is determined from two aspects of ultrasonic waves and electromagnetic waves, the leakage current condition of a sleeve or an insulator is monitored through leakage current, inspection time can be intelligently corrected, and monitoring reliability is improved.

The invention provides a relay protection and measurement integrated device which integrates a plurality of communication interfaces, in order to solve the problem that the single-typed communication interface in the existing relay protection and measurement integrated device can not satisfy the networking requirements of different users and on different application occasions. The integrated device comprises a microprocessor, an RS-485 interface, a CAN bus interface and an Ethernet interface, wherein a UART serial port, an address bus, a data bus and a control bus are integrated in the microprocessor; the RS-485 interface, the CAN bus interface and the Ethernet interface are respectively connected with the microprocessor. The relay protection and measurement integrated device is provided with a plurality of communication interfaces, and has rich, diverse and flexible networking modes, thereby satisfying the networking requirements of different users and on different application occasions to the greatest extent.

The invention relates to a inversion system, which comprises: an electric power conversion circuit with a power conversion and a power filter circuit to supply dc-ac convert path, and a control system to realize control algorithm, information management and exchange and control other parts. Wherein, the control system comprises: a central-control module, multiplex data detection and collection module, a hierarchy communication management module, multiplex power drive module, and a hierarchy alarm management module. This invention ensures the amplification and narrow-impulse limit, can feedback the alarm information accuracy in time, has strong communication function, and the software has strong real-time and specialty.

The invention provides an enhanced fiber unit and a manufacturing method thereof, relating to a fiber unit with an enhanced component and the manufacturing method thereof, and being suitable for production and manufacturing of various photoelectricity compound cables, optical fiber composite cables, seabed photoelectricity compound cables, indoor type optical cables and the like. The fiber unit comprises a plurality of optical fibers, optical fiber filling oil paste, an optical fiber protective layer, a fiber reinforced layer and a reinforced external sheath, wherein the outside of the optical fiber is coated with the optical fiber protective layer; the optical fiber filling oil paste is filled among a plurality of optical fibers in the optical fiber protective layer; the fiber reinforced layer is arranged outside the optical fiber protective layer; and the reinforced external sheath is arranged outside the fiber reinforced layer. The manufacturing method comprises the following steps: emitting the optical fiber from a constant tension dereeler, after forming beams, a layer of optical fiber protective layer is extruded out through a specific extruder; filling water repellent filler between the optical fibers when the optical fiber protective layer is extruded; and winding a layer of nonmetal fiber yarn with high strength outside the optical fiber protective layer, and extruding a layer of waterproof reinforced external sheath outside the fiber yarn, and obtaining a finished product.

The invention relates to an integrated monitoring terminal for a wind-electricity power generation unit, and relates to the field of wind-electricity power generation technologies. The integrated monitoring terminal comprises a signal collector, a signal processing module, a control system, a communication module, a server, a video collector, and a voice collector, wherein a transformer is provided with the signal collector, the output end of the signal collector is connected with the input end of the signal processing module, the output end of the signal processing module is connected with the input end of the control system, the output end of the control system is connected with the input end of the communication module, the output end of the communication module is connected with the input end of a photovoltaic conversion module, the output end of the photovoltaic conversion module is connected with the server, and the input end of the communication module is also connected with the video collector and the voice collector. The integrated monitoring terminal integrates videos and voices, realizes the function of protecting the whole box-type transformer, is also communicated with other equipment of a wind electricity matrix and manages the other equipment of the wind electricity matrix, so that the quantity of the equipment of a power station is reduced, the maintenance difficulty for field workers is lowered, and the operation reliability of a wind electricity field is improved.

The invention discloses an intelligent pipeline pump. The intelligent pipeline pump comprises a pump body, a pump shaft, an impeller, a variable frequency motor and a motor support, wherein the pump shaft is contained in the pump body, and the section of an inner hole of the motor end of the pump shaft is in a non-circular shape; the impeller is assembled on the pump shaft in a key joint mode; the variable frequency motor is integrally composed of a variable frequency controller and a motor body, and the motor body is used for driving the pump shaft to rotate; the motor support is used for connecting the pump body and the variable frequency motor. The variable frequency motor integrally composed of the variable frequency controller and the motor body is adopted, the size of the motor can be reduced, product manufacturing cost is lowered, and installation space is reduced; the efficiency of the variable frequency motor under partial load working conditions is considered while rated point optimization design is considered, the efficiency under partial working conditions of a pipeline pump system is improved, and thus the operation cost of the variable frequency pipeline pump system is reduced. By means of the non-circular section, the inner hole of the motor end of the pump shaft is assembled in transition fit with a motor shaft of the variable frequency motor, so that machining cost is lowered, higher torque can be transmitted, and a powerful communication function is achieved.

The invention relates to the technical field of optical fiber analyzer devices, and discloses an Internet of Things optical fiber analyzer device based on edge computing, which comprises a main control module with an important edge computing node and an optical fiber sensing module connected with terminal platform equipment. According to the Internet of Things optical fiber analyzer device based on edge computing, hardware platformization, function software, structure modularization and software and hardware decoupling design are adopted, the requirements for high-performance concurrency, large-capacity storage and multiple collection objects are met, power supply and consumption and environment information collection of a gathering and transmission station area are achieved, and all collection terminals or icing, galloping, lightning stroke, wind speed and flashover positioning are achieved, data collection is carried out on terminal equipment by utilizing optical fiber sensing, state monitoring analysis is carried out by adopting an edge calculation method, automatic AI image identification, accident alarm and fault recording are realized by utilizing an AI intelligent algorithm, and communication networking, in-situ analysis and decision and cooperative calculation of the Internet of Things are carried out through adopting multiple communication methods.

The invention discloses an equipotential optical fiber unit for a high-voltage photoelectric composite cable. The equipotential optical fiber unit for the high-voltage photoelectric composite cable is characterized by being sequentially composed of optical fibers, water blocking factice specially used for filling the optical fiber unit, a metal protection tube, a semi-conductive plastic reinforcing layer, a metal wire armor layer and a semi-conductive plastic outer protection layer from inside to outside. Each protection layer protects electrical connection through metal and non-metal materials and all the protection layers are equipotential. Under the effect of an electric field of a power cable, potential difference is not caused between the metal protection layer and the non-metal protection layer, and an optical unit integrity and other structures of the photoelectric composite cable form an equipotential body, and therefore the potential difference does not exist between the optical unit and other structures of the cable, the optical unit will not be broken through due to the fact that induced voltage is too high. In addition, the space between the optical unit and a high-voltage cable core will not be broken through, safety of the optical unit and a cable body is guaranteed, and the service life of the cable is prolonged.

The invention relates to a navigation signal source for a signal sheltered area. The navigation signal source comprises a central processor, a positioning signal module, a communication module and an antenna. The positioning signal module is used to generate a civil code signal and an associated signal. The associated signal is added to enhance positioning in the signal sheltered area and improve the coverage range of satellite navigation. Due to the civil code signal and the associated signal are used simultaneously, transition between indoor and outdoor navigation can be realized in a smooth manner. The associated signal is a direct sequence spread spectrum signal or a frequency hopping spread spectrum signal or a frequency sweeping spread spectrum signal, so that the signal source has the anti-interference capabilities as resisting frequency offset and reducing the multipath effect. Air pressure and temperature sensors are arranged additionally, so that the elevation of the position of the navigation signal source is measured and used as reference of differential calculation of a user terminal, and the positioning precision of the user terminal is improved. A calibration test module composed of a light source and a receiver is provided to correct positioning deviation of the user terminal accurately.

The invention provides a device capable of intelligently detecting an electric leakage switch in a communicating mode. The device capable of intelligently detecting the electric leakage switch in a communicating mode comprises an upper computer, wherein a central processing unit is connected with the upper computer and a DA converting unit, the DA converting unit is connected with a constant-current control unit through a power amplification unit, the constant-current control unit is connected with the electric leakage switch to be detected through a power supply, and a switch tripping judging unit and the two ends of a leakage current feedback collection unit are connected with the central processing unit and the electric leakage switch to be detected respectively. The invention further provides a method capable of intelligently detecting the electric leakage switch in a communicating mode. Test parameters are set by the upper computer, and the central processing unit reads and analyzes the test parameters, outputs corresponding control signals, generates leakage current signals after data conversion, inputs the leakage current signals to the electric leakage switch, simulates the electric leakage signals, and judges and collects tripping information of the electric leakage switch. The device capable of intelligently detecting the electric leakage switch in a communicating mode can automatically adjust leakage current, is accurate in closed loop feedback, has a strong protection function and a communication function, is convenient, rapid and intelligent to test, and improves measuring accuracy.

The invention discloses a visible light communication receiving device based on a RGB-LED wavelength-division multiplexing technology. The visible light communication receiving device comprises a collimated lens, a light-separating device and light detecting receiving devices, wherein, the collimated lens is used for collecting visible light form a RGB-LED light source and adjusts the visible light into parallel lights to enter the light-separating device, the received parallel lights are separated into red light, green light and blue light by the light-separating device, and the light detecting receiving devices are used for receiving and detecting the three kinds of color light. According to the visible light communication receiving device, white light transmitted by the light source is broken into R light, G light and B light through the collimated lens and the light-separating device, different signals are loaded by the light with different colors and are received by the three light detecting receiving devices respectively, and the visible light communication speed is improved greatly.

The invention relates to a photovoltaic inverter control method capable of improving the power quality of a distribution network. The method comprises the steps that 1 the first control state of independent filter control: when a non-linear load is enabled on a user side, a load side sensor detects voltage and current, and calculates THDu and harmonic current in real time through an instantaneousreactive power method; when the load side THDu is higher than the limit and lasts for N power frequency cycles, compensation current is calculated based on the remaining capacity of photovoltaic grid-connected inverters, and harmonics are filtered out; and 2 the second control state of multi-inverter linkage filter control: when the load side sensor detects that THDu is below the limit and lasts for N power frequency cycles, the inverters stop the first control state; after an energy storage module is charged, the inverters can enter the second control state, and multiple inverters can coordinate to compensate power grid harmonics. According to the invention, the cost of improving the power quality can be reduced, and at the same time the user's profit is ensured.

The invention relates to the technical field of packaging machinery, in particular to a boxing machine. The boxing machine comprises a material conveying device, a packaging box feeding device, a packaging box conveying device, a box opening device, a pushing device, a box sealing device, a discharging and shaping device, and a servo control system. The servo control system is in communication connection with the material conveying device, the packaging box feeding device, the packaging box conveying device, the box opening device, the pushing device, the box sealing device and the discharging and shaping device, and can independently control all the devices to start or stop working. According to the boxing machine, independent servo driving of the material conveying device, the packaging box feeding device, the packaging box conveying device, the box opening device, the pushing device, the box sealing device and the discharging and shaping device is implemented through the servo control system; all the devices are independently controlled; and the boxing machine has the advantages of being high in production speed, convenient to operate, high in intelligent degree, powerful in data storage and communication function, stable in performance, low in failure rate, high in safety, high in yield, capable of avoiding packaging material waste and the like.

The invention discloses a suppression method of an excitation inrush current. The suppression method comprises the steps of S1, sampling a plurality of points of each periodic wave of a simulation value of each circuit breaker, setting preset switch-on time, setting switch-on setting angle to be 90 degrees or 270 degrees, and setting a rated current peak; S2, acquiring actual switch-on time, a switch-on angle and a switch-on current peak when the circuit breaker is switched on, and calculating to obtain switch-on time difference and switch-on angle difference; S3, switching off the circuit breaker; and S4, correcting switch-on time to be used as next switch-on time according to the switch-on angle difference, obtaining a new switch-on angle and a circuit peak, considering excitation inrushcurrent suppression to be success when the switch-on angle approximates to the switch-on setting angle and the current peak approximates to the rated current peak, otherwise, continuing to repeat thestep S3 and the step S4. By a flexible control method, the excitation inrush current is effectively suppressed, and great convenience and flexibility are provided for a relay under various special working conditions.

The invention discloses an AIS ship berthing and unberthing automatic positioning and timing method based on Bluetooth. The method comprises steps of S1, Bluetooth tags being installed on ships entering and leaving a port; S2, installing and deploying a Bluetooth base station in a harbor area; S3, establishing a corresponding table T1 of the unique identification of the ship and the Bluetooth label data; establishing a data corresponding table T2 of the berth number, the berth longitude and latitude and the berth RSSI value; S4, when the ship enters the recognizable area of the harbor area, the Bluetooth base station recognizing the Bluetooth label of the ship; S5, judging whether the identified ship is berthed and docked or not, and recording the berthing information; S6, judging whetherthe berthed ship is unberthed or not, and recording the unberthing information. The method is advantaged in that the Bluetooth tag and the Bluetooth base station are adopted for positioning and timing, when a ship berths, berths and unberths are accurately and automatically judged, and accuracy and reliability of AIS ship berthing and unberthing timing are improved, bluetooth equipment is wide inrecognition range and easy to install and maintain, and operation cost is greatly reduced.

The invention discloses an intelligent multistage centrifugal pump, which comprises: a pump body, an outer casing, and a flow channel between the outer casing and a guide vane support body; a coupling is connected with a pump shaft; The fluid is sucked in from the inlet and pressurized; the guide vane is accommodated in the guide vane support body, and the liquid pressurized by the impeller is collected to reduce the flow rate and discharged through the outlet; the frequency conversion motor includes: the motor body and the motor connected to the coupling in the axial direction The shaft also includes a frequency conversion controller integrated in the motor body, and the frequency conversion motor drives the pump shaft to rotate through the motor shaft and the coupling. The frequency conversion motor of this invention is integrated with the frequency converter and the motor body, which reduces the volume of the equipment, saves product manufacturing costs, saves installation space, improves the efficiency of the multi-stage centrifugal pump system under some working conditions and reduces the water pump system. energy consumption.

The invention provides a wireless based electricity energy monitoring system, and belongs to the field of wireless monitoring. The system is characterized by comprising a data acquiring node, a collecting node, a local host and a remote monitoring center; the data acquiring node is connected with the collecting node by a wireless manner; the local host is connected with the collecting node through a cable; the remote monitoring center is connected with the local host; the data acquiring node is arranged at a point source to be monitored. According to the system, the electricity energy quality can be monitored on real time through the wireless sensor network; the system is high in measurement and communication functions, and has the characteristics of being convenient to network, performing dynamic topology, and being low in cost, large in capacity and high in reliability; the demand of an industrial park on real-time monitoring of the electricity energy quality can be met well; the system is suitable for wide popularization and application.