39results about How to "With modular design" patented technology

The invention discloses a control system for a modular multilevel converter and an application method of the control system. The control system for the modular multilevel converter comprises a master control unit, M1 bridge arm control units, a group of high-speed digital buses and a group of communication buses, wherein each bridge arm control unit comprises M2 valve group control units; and each valve group control unit is used for controlling the use, the removal, the bypassing and the lockout of sub-modules in a corresponding valve group through an optical fiber, and electrically isolating the sub-modules. A sub-module voltage balancing algorithm for the modular multilevel converter consists of an intra-valve group voltage balancing part and an inter-valve group voltage balancing part. The control system and the application method are used for controlling and managing the use, the removal, the bypassing and the lockout of the sub-modules of the modular multilevel converter to realize the voltage balancing of the sub-modules of the modular multilevel converter, are applied to an application situation where the modular multilevel converter has a great number of sub-modules, and have the characteristics of modular design and high expansibility, and the design difficulty of the control system can be greatly reduced.

The invention discloses a Matlab simulation visualized platform of a vehicle Bug obstacle avoidance algorithm. The platform comprises an environmental map generation part, a Simulink algorithm simulation realization part and a GUI animation simulation effect interface, each of the parts and interface is realized by software simulation or physical hardware, so that the platform can be applied to the whole development and verification process from purely software simulation to complete physical robot system operation. An environmental map can be drafted via a mouse, or generated via file introduction, or created in real time via data collected by external sensors; the Simulink algorithm simulation realization part realizes internal recycling of the algorithm or stops triggering conditions based on a Simulink cycled operation mode; and the GUI animation simulation effect interface mainly simulates movement of a vehicle according to the obstacle avoidance algorithm. The broken-line Bug algorithm, arc Bug algorithm, laser range finder, panorama camera and the like are practically verified, operation of the platform is simple and friendly, and the research and development efficiency of obstacle avoidance algorithm of autonomous vehicle navigation is greatly improved.

The invention discloses an implementation method of an LCD drive circuit and a source electrode drive circuit module. The source electrode drive circuit module is characterized by consisting of a precharge voltage generation circuit (100), a gamma voltage division circuit (200), two to four groups of M-level gray scale generation circuits (300) and an equilibrium gamma load drive circuit (400), wherein, output of the precharge voltage generation circuit (100) is a precharge voltage Vper which is a positive precharge voltage Vpper or a negative precharge voltage Vnper, the output of the gamma voltage division circuit (200) is N gray scale reference voltages, namely, V1, V2 to VN, and the N gray scale reference voltages V1, V2 to VN are respectively connected with the two to four groups of M-level gray scale generation circuits (300) the output of which is two to four groups of gray scale voltages, the gray scale voltages and display data (G_DATA) are jointly connected to an input terminal of the equilibrium gamma load drive circuit (400), and the gamma drive output voltage and the precharge voltage Vper are taken as the source electrode drive output.

The invention discloses a method for detecting multiple targets based on nucleic acid aptamer fluorescence sensor, which applies polypyrrole nanoparticles and DNA silver nanoclusters for the first time and establishes an aptamer sensing platform based on a steric hindrance effect.In addition, the invention obtains a good detection result based on the low non-specific adsorption characteristic ofthe polypyrrole nanoparticles, and realizes the detection of multiple targets based on the specific recognition characteristic of the aptamer sequence, improving the universal performance of the invention.The method for detecting multiple targets based on nucleic acid aptamer fluorescence sensor, provided by the invention, has the advantages of label-free property, no enzyme and high sensitivity,and can realize high-efficiency detection in biological samples.

The invention relates to an anti-interference parameter integration testing device for an ultra-high voltage line. The anti-interference parameter integration testing device is used for performing integrated measurement on power frequency parameters of a measured ultra-high voltage line. The device comprises a pilot frequency measurement module, a measuring and wiring automatic switching module, a series and parallel impedance suppression module and an opposite-end GPS synchronous measurement module. The pilot frequency measurement module is used for performing digital separation and power frequency parameter calculation of a power frequency interference signal and a pilot frequency signal on a measured signal. The measuring and wiring automatic switching module is connected with the pilot frequency measurement module and used for automatically switching internal wiring modes according to the power frequency parameters to be measured. The measuring and wiring automatic switching module and the measured ultra-high voltage line are respectively connected with the series and parallel impedance suppression module which is used for relieving the influence on measurement by electrostatic induction voltage and induced current. The opposite-end GPS synchronous measurement module is connected with the measured ultra-high voltage line and is used for synchronously performing measurement of the physical quantity of the line at the other end of the measured ultra-high voltage line by means of GPS synchronization. Compared with the prior art, the anti-interference parameter integration testing device has the advantages that the device is of modular design, wiring is easy, and all tests can be completed as long as wiring is performed at a time.

The invention relates to a wind turbine system and an electricity generation method of the wind turbine system. The wind turbine system comprises a convolution body surrounding a circle, a supporting part supporting the convolution body, a rail arranged on the convolution body, a plurality of connected trolleys, vanes connected with the trolleys, a plurality of generators fixed to the convolution body, a plurality of positioning devices installed on the convolution body and the trolleys respectively and used for sending and receiving signals, and electricity receiving devices which are installed on the trolleys and are capable of receiving power electricity, wherein the rotation angles of the vanes can be controlled to be adjusted, an automatic sailing driving instrument is arranged in each trolley, a wind indicator is installed at the top of each vane, the input end of each automatic sailing driving instrument is connected with the corresponding wind indicator, and the output end of each automatic sailing driving instrument is connected with a hydraulic servo mechanism. The wind turbine system can achieve industrial production and is designed in a modularized mode, the shape of the wind turbine system can be designed according to the landform of the installation site, and the wind turbine system is particularly suitable for a large wind turbine system.

The present invention relates to the technical field of non-destructive detection, and in particular relates to a pipeline ultrasonic longitudinal guided wave flexible array detection probe apparatus including a number of probe units, a chain unit for fixing the probe units into an annular array, and a fastener for fitting the detecting ends of the probe units on a to-be-tested pipe. The probe units of the pipeline ultrasonic longitudinal guided wave flexible array detection probe apparatus are compact in structure and good in mechanical coupling effect, and the pipeline ultrasonic longitudinal guided wave flexible array detection probe apparatus has rapid loading and unloading, and modular and flexible features, and can achieve adjustment of jig length, probe array element specification, probe array element number, and a number of parameters of probe incidence angle.

The invention relates to a DSP and FPGA based energy storage flywheel magnetic bearing control system and method. The system includes a DSP algorithm module, an FPGA drive control module, a magnetic bearing power module, a magnetic bearing signal monitoring module, a magnetic bearing signal conditioning module, an A / D conversion module, an LCD display module, a keyboard and a host computer communication module. The DSP algorithm module is in electric signal connection with the FPGA drive control module, the magnetic bearing power module is in electric signal connection to a PMW generator of the FPGA drive control module. PWM is used to complete current level control on the flywheel magnetic bearing coil, so as to complete the real-time control of the flywheel operation; the magnetic bearing signal monitoring module in electric signal connection realizes monitoring of a displacement signal of a flywheel magnetic bearing rotor and a current line signal of the magnetic bearing coil. The invention has the advantages of simple circuit, stable system and high control precision.

The invention discloses a transformer substation maintenance operation centralized management and control information platform. The platform comprises a construction area, a second door area and a central control area, the second door area is arranged between the construction area and the central control area, the construction area is provided with an electronic fence and an electronic fence camera, and the electronic fence has an alarm function; the electronic fence camera has the functions of video monitoring acquisition and border crossing alarm prompt; the second door area is provided withan AI face recognition camera and an all-in-one machine, the AI face recognition camera recognizes the identity of a constructor, and the all-in-one machine is used for security personnel to verify and check in-and-out personnel information and can also give an alarm for prompting; and the central control area is provided with a control server, the control server comprises a central core controlsystem, and the central core control system is used for acquiring equipment information on the control server and displaying the equipment information on the central control large screen for background management personnel to manage and monitor conditions of a construction site in real time. Equipment used by the information platform is simple, and the information platform is reasonable in layout,easy to build, convenient to maintain and low in investment cost.

The invention provides an integrated prefabricated cabin type transformer substation combination structure which comprises a prefabricated cabin, wherein the prefabricated cabin is formed by connecting a plurality of keel section bar structure beams in a mutual mortise and tenon mode, the keel section bar structure beams include keel section bar structure cross beam, keel section bar structure longitudinal beams and keel section bar structure vertical beams, a plurality of mutually-parallel keel section bar structure cross beams are connected with a plurality of mutually-parallel keel section bar structure longitudinal beams in mutual mortise and tenon mode to form a bottom structure of the prefabricated cabin, and a plurality of keel section bar structure vertical beams are connected with the bottom structure to form a side wall structure of the prefabricated cabin in a mortise and tenon mode. The side wall structure of the prefabricated cabin is provided with a plurality of a mortise and tenon structure conveniently connected with the adjacent prefabricated cabin. The prefabricated cabin can be pre-manufactured and can be directly mortised and tenoned in a site, and the overall structure of a transformer substation can have the advantages of being modular in design, convenient to assemble and maintain, high in bearing capacity, good in stability, capable of reducing cost and the like.

The invention provides a load thermal protection module with adjustable multi-point temperature control. The load thermal protection module comprises a temperature sensor, a current transformer, a relay, a button, a microprocessor, a power supply interface and a load interface. The current transformer is connected with the load interface and is connected with the microprocessor through a sampling circuit. The relay is connected between the power supply interface and the load interface and is connected with the microprocessor. The temperature sensor is connected with the microprocessor through a signal input circuit. The button is connected with the microprocessor. According to the load thermal protection module, different working temperature and current values can be set and stored, when the current transformer detects that load current reaches a set value or the temperature sensor detects that load temperature reaches a set value, the microprocessor controls the relay to cut off a load circuit, and the overcurrent and overtemperature protection of the load is realized. According to the load thermal protection module, the temperature and current of the load can be accurately measured, large power output can be controlled, the double protection of overcurrent and overtemperature of the load can be carried out at the same time, and the application range is wide.

The invention discloses a self-regulation-membrane biciruclation-condensation-activated carbon adsorption-low temperature catalytic oxidation combination device. The device is formed by connecting a storage tank, a buffer tank-membrane processor-alkali adsorption tower-activated carbon adsorption tower assembly and a buffer tank-membrane processor-incinerator assembly and used for controlling various parameters. The device is high in safety, low in pressure and temperature and small in size, the process is continuous and stable, no heating process exists, the pressure drop of a connecting pipeline is small, automatic control and module design are achieved, no operation worker needs to be added.

The invention relates to the technical field of solid waste recovery treatment, in particular to a modular continuous pyrolysis internal rotation type reaction kettle device. A first internal rotationtype pyrolytic reaction kettle barrel and a second internal rotation type pyrolytic reaction kettle barrel are connected through a feed end connecting module, a middle connecting module and a deslagging end connecting module; the connection of a plurality of reaction kettles is realized through the matched installation of an inner hexagonal shaft head of a first propelling spiral shaft with an inner hexagonal structure and a hanging shaft transmission outer hexagonal shaft with a symmetrical outer hexagonal structure at two ends. The modular continuous pyrolysis internal rotation type reaction kettle device provided by the invention is convenient in structure and simple to operate, the kettle bodies can be modularly exchanged, and the operation cost is low. When the module parts are usedfor connecting the whole device, no matter which module of the device goes wrong, only one module needs to be replaced for continuous use, so that the production and operation cost of enterprises is greatly reduced, the service life of the whole device is prolonged, and the device has very high application value.

The invention relates to a combined connection type electromagnetic air valve. The combined connection type electromagnetic air valve comprises an air inlet seat, a check valve laterally connected tothe air inlet seat, a valve seat connected to the check valve and an electromagnetic valve body arranged in the valve seat; the combined connection type electromagnetic air valve is characterized in that the air inlet seat is internally provided with an air inlet channel, one end of the air inlet channel is an air inlet connected with an air source, and the other end of the air inlet channel is aseries connection opening for allowing an air inlet of another air inlet seat to be connected in an inserted mode; a complex number of positioning columns and a complex number of inserting connectionterminals are arranged below the exterior of the valve seat, the complex number of inserting connection terminals are electrically connected to the electromagnetic valve body, and the electromagneticair valve can be electrically connected with a circuit board in a inserting mode through the complex number of positioning columns and the complex number of inserting connection terminals; and of themultiple electromagnetic air valves are connected in series through the air inlet seats of the electromagnetic air valves and then communicate with the air source, so that the electromagnetic air valve has the advantages that modular design is achieved, the assembling and maintaining efficiency is improved, and the number of the electromagnetic air valves is expanded according to needs.

The invention relates to the field of mills, and discloses a cylinder structure of a large modular mill. The cylinder structure comprises a plurality of cylinders which are connected with one another,the two ends of each cylinder are connected with end flanges correspondingly, the outer surface of each cylinder is sleeved with at least one annular flange, and one side of each cylinder is connected with an excitation device mounting base through the at least one annular flange; the other side of each cylinder is connected with a balance weight through the at least one annular flange, and the balance weights are used for adjusting the weight of the two sides of the cylinders; and spring bases are arranged at the lower ends of the two sides of each cylinder correspondingly. According to thecylinder structure of the large modular mill, through horizontal arrangement of a vibratory mill, dry-process and wet-process ore grinding can be achieved, the excitation device is arranged on one side of each cylinder, the balance weight is arranged on the other side of each cylinder, the cylinder structure is provided with the spring bases and supported by springs, the large scale of the mill iswell completed, machining, manufacturing and transporting are convenient, modular design of the mill is achieved, and the cylinder structure has the excellent characteristics of high ball loading rate, low energy consumption and universality for dry milling and wet milling and the like.

The invention relates to the field of machining, in particular to a clamping and positioning device which comprises a supporting frame. The supporting frame comprises four supporting stand columns with supports distributed in two columns and supporting plates arranged side by side, and the supporting plates are perpendicularly fixed to the top ends of the two columns of supporting stand columns; connecting rod pressing assemblies capable of pressing a workpiece are symmetrically installed on the two supporting plates respectively, a base is arranged in the center of the supporting frame, and apositioning device for positioning the bottom of the workpiece is arranged on the base; and the connecting rod pressing assemblies and the positioning device are combined to form a workpiece clampingdevice. The clamping and positioning device is simple and reliable in structure, reasonable in space arrangement, high in space utilization rate and high in measurement efficiency.