442results about How to "Achieving a modular design" patented technology

The invention provides a positioning compaction device, a compaction device and a tool for the auxiliary machining of chassis of motor trains. The positioning compaction device comprises a beam, two support frames, two rotary vertical compaction structures, a side positioning structure, a lateral butting structure and two adjustable intermediate support structures, wherein the two support frames are slidably arranged on both sides of the upper surface of the beam respectively; the two rotary vertical compaction structures are arranged on the tops of the two support frames respectively; the side positioning structure is arranged on the lateral part of one support frame in the two support frames; the lateral butting structure is arranged on the lateral part of the other support frame in thetwo support frames; and the two adjustable intermediate support structures are arranged on the upper surface of the beam and are positioned between the two support frames. The positioning compaction device realizes the modular design of the tool for the auxiliary machining of the chassis of the motor trains and solves the technical problems of large volume and inconvenient carrying and movement of a tool structure for the auxiliary machining of the chassis of the motor trains and incapability of auxiliary machining of the chassis of the motor trains with different types due to low adjustability.

The invention relates to a battery management system. The battery management system comprises a CPU, a battery temperature collection unit, a battery voltage collection unit, a battery current collection unit, a battery protection unit, a heat management control unit, a module voltage collection unit and an electronic switch unit, wherein the battery temperature collection unit, the battery voltage collection unit and the battery current collection unit are connected with the CPU and a battery pack respectively; the battery pack is connected with the module voltage collection unit through the electronic switch unit; the module voltage collection unit is connected with the CPU; the CPU is connected with the heat management control unit and the battery protection unit respectively; and the battery protection unit is connected with the battery pack. The battery management system also comprises a wireless communication module, an alarm unit and a CAN communication interface connected with the end of a PC. The battery management system can monitor the working condition of batteries, calculates the SOC (State of Charge) of the battery pack, and avoids overdischarge, overcharge and overheat, so that the storage capacity and cycle life of the batteries are utilized to the maximum extent.

The invention discloses a modularized integrated smoke purification system and method for removing a plurality of pollutants. The system comprises an absorption tower, wherein a smoke inlet is arranged in the lower end of the absorption tower; the absorption tower is internally provided with a spraying device which is located above the smoke inlet and is used for spraying an absorbent, a first wet-type electric precipitation device located above the spraying device, and a second wet-type electric precipitation device located above the outer side of the absorption tower; and a smoke uniform distributor is arranged between the first wet-type electric precipitation device and the second wet-type electric precipitation device. The invention further discloses a method for carrying out smoke purification by using the system; the pollutants existing in an aerosol form, including SO2, NOX, superfine smoke dust, SO3 acid fog, mercury and the like in the smoke, can be intensively removed; gypsum rain is prevented and an environment is protected; and the smoke purification efficiency is improved.

The invention discloses a light emitting diode (LED) assembled screen. The LED assembled screen comprises a control box, a framework and at least two LED display modules, wherein the control box at least comprises two independent paths of output interfaces; each output interface is connected with one LED display module; the at least two LED display modules are assembled and fixed on the framework; each of the LED display modules comprises a box body, a circuit board, a pouring sealant, a driving chip, an input interface and a plurality of LED chips; the driving chip and the plurality of are arranged on the circuit board; the driving chip is connected with the LED chips and the input interface respectively; the input interface is formed on the box body and connected with the corresponding output interface of the control box; the box body has a flat structure, and one face of the box body is provided with an opening; the circuit board is arranged in the box body; the pouring sealant is covered on the circuit board so as to seal the opening face of the box body; and the LED chips are arranged on one side, corresponding to the opening face of the box body, of the circuit board. Due tothe LED assembled screen, the assembling flexibility of an LED display screen is improved, and the LED assembled screen is convenient to install and maintain.

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 a parallel control method of a three-phase two-level inverter with isolation transformers. The parallel control method comprises the steps of: (1) connecting each auxiliary inverter with one isolation transformer, to be specific, modulating direct-current into alternating-current power with certain amplitude and frequency by the regulation of the auxiliary inverters, and then carrying out voltage reduction and filtering on the alternating-current by the isolation transformers to supply the power to alternating-current auxiliary loads on a motor train unit for use; (2) sampling the output line current of the auxiliary inverters and the liner voltage of secondary sides of the isolation transformers, calculating active power and passive power under the instantaneous output of the auxiliary inverters and carrying out filtering treatment; (3) generating given voltage amplitude signals and given frequency signals for current-sharing control of the auxiliary inverters by using a drooping characteristic algorithm; and (4) enabling the auxiliary inverters to output three-phase alternating-current power with certain voltage amplitude and frequency by means of voltage closed-loop control and frequency closed-loop control. The parallel control method has the advantages of simple principle, easiness for implementation, capabilities of improving antijamming capability of the system and greatly enhancing system reliability, and simultaneously reducing system hardware cost, and the like.

The invention discloses a high-power braking energy consumption device and a control method thereof. The device comprises an isolating switch module, a chopper module, a reactor module and a braking resistance module, wherein the isolating switch module is connected with the reactor module, the chopper module is connected with the reactor module, the braking resistance module is connected with the chopper module, the isolating switch module detects the voltage of a direct-current bus, the braking resistance module comprises a bipolar linkage blade switch and an absorbing resistor, the double-system conversion of the high-power braking energy consumption device is realized through the bipolar linkage blade switch according to the voltage of the direct-current bus, and the braking resistance module implements the absorption and discharge of braking energy. The reactor module comprises a filter reactor which is used for carrying out filtering on the voltage of a power grid. The chopper module is used for carrying out chopping control on the braking energy. According to the invention, the double-system conversion of the high-power braking energy consumption device is realized, and in the double-system, the device can absorb higher power fed back by currently involved domestic railway vehicles, thereby ensuring the reliable operation of power grids and vehicles.

The invention provides an HVDC (high voltage direct current controller) and UPFC (unified power flow controller) system based on a modularized multi-level converter. The HVDC and UPFC system comprises converting devices (1, 2 and 11), grounding circuits (3 and 12) and a direct current transmission line (13). The UPFC is formed by the converting device (1) and the converting device (2). The HVDC is formed by the converting device (1) and converting device (11). The HVDC and the UPFC shares one converting device, so that cost and investment for engineering construction are saved, equipment utilization rate is improved, concentrated management and control are facilitated. The converting devices use the topological structure of the modularized multi-level converter, so that technical difficulty in component serial connection is avoided, split-phase control and modularization are facilitated, fault units can be bypassed through redundancy, operation stability of the devices is improved, on and off frequency of components is low, and device operation loss is low.

The invention relates to a flue ozone distributor, and an arrangement mode and an application thereof. The flue ozone distributor comprises a distribution main pipe, a plurality of distribution branch pipes and a plurality of Venturi distributors, wherein the plurality of distribution branch pipes are branched and led out from different longitudinal sections of the distribution main pipe; the plurality of distribution branch pipes are in staggered arrangement; and the plurality of Venturi distributors are arranged alternatively and symmetrically at two sides of the distribution branch pipes. The flue is provided with the flue ozone distributor. The flue ozone distributor is generally applied in the fields of low temperature ozone denitration of industrial boiler/kiln gas in industries such as thermoelectricity and steel. The flue ozone distributor is simple in structure and convenient for installation. A direction that ozone is sprayed into the flue is vertical to a gas flow direction. No dust deposition blockage problem exists. Besides, the inlet content of O3 is adjusted according to the concentration of NO in the gas; operability is strong; and operational economic benefits are increased, thereby meeting practical industrial applications.

The invention relates to a combination type high-altitude precise aerial delivery system, which is composed of a controllable parafoil aircraft assembly, a detachable power assembly and a detachable round parachute assembly. After being delivered in high altitude, the system is controlled autonomously and lands on a destination safely and precisely. When both the flying environment and the landing environment are good, the controllable parafoil aircraft assembly is only used to execute a task, thus, the flying weight of the system is lightened, and the system is simplified. The controllable parafoil aircraft assembly and the detachable power assembly are combined, thus, the system can be applied to a severe flying environment; furthermore, the flying delivery distance can also be prolonged. The controllable parafoil aircraft assembly and the detachable round parachute assembly are combined, thus, the round parachute can be opened when the system reaches a low-altitude airspace of a landing point to realize ease landing, and, the system can be applied to a severe landing environment. The controllable parafoil aircraft assembly, the detachable power assembly and the detachable round parachute assembly are combined, thus, the system can be applied to the severe flying environment; the flying delivery distance can be prolonged; furthermore, the system can be applied to the sever landing environment to realize the ease landing. The system disclosed by the invention is multifunctional and wide in application range.

The invention discloses a physical interface device of an all-digital real-time simulation system of a power system, and the physical interface device can synchronously convert AI, AO, DI, DO and other signals of the real-time simulation system with high precision, capture level hopping, pulse triggering and other events, mark precise time scales for the events, continuously output waveform with very small refresh intervals and realize fault wave recording and replaying, open-loop test of a traveling-wave device and other functions. In addition, the modular design is realized according to the physical interface device of the all-digital real-time simulation system of the power system, the interfaces of AI, AO, DI and DO function boards are same, and the number of the different function boards can be flexibly configured according to the needs of trials; furthermore, the physical interface device of the all-digital real-time simulation system of the power system realizes fault diagnosis, automatic calibration and other functions and realizes the synchronous and parallel operation of a plurality of physical interface devices.

The invention relates to a unified power flow controller used for an unbalanced system. The unified power flow controller comprises a static synchronization compensator and a static synchronization series compensator. An upper part split capacitance and a lower part capacitance are arranged between the static synchronization compensator and the static synchronization series compensator. The upper part split capacitance and the lower part split capacitance are connected in series and then respectively connected with the static synchronization compensator and the static synchronization series compensator in parallel. The upper part split capacitance and the lower part split capacitance are connected in series and then a split capacitance branch circuit is formed. A midpoint of the split capacitance branch circuit is connected with a neutral point of the static synchronization series compensator. Output ends of the static synchronization compensator and the static synchronization series compensator are respectively connected with a power grid. The unified power flow controller is convenient to split-phase control and modularization design, small in running loss, good in voltage control capacity, good in zero-sequence current controlling, few in element quantity, low in cost and high in cost performance.

The invention discloses horizontal filling equipment for missile encasement. The horizontal filling equipment comprises a missile horizontal propelling platform and a missile storage and transportation box lifting platform which are sequentially arranged in the missile filling direction, wherein the missile storage and transportation box lifting platform can achieve six-degree-of-freedom movementof a missile storage and transportation box, and the missile horizontal propelling platform can be used for achieving the adjustment of circumferential poses of the missiles for missiles with different models and different centering part positions in a simple, convenient and rapid mode, so that guide buttons of the missiles are enabled to be aligned with guide grooves in the missile storage and transportation box. According to the horizontal filling equipment for the missile encasement, through the cooperation between the missile horizontal propelling platform and the missile storage and transportation box lifting platform, a missile-borne guide rail on the missile horizontal propelling platform can be quickly aligned with a missile-borne guide rail on the missile storage and transportation box, so that the filling efficiency is improved, and the equipment has the advantages of being high in applicability, convenient to operate, high in filling precision and filling efficiency and thelike overall.

The invention discloses a power-distributed diesel motor train unit cooling system based on a heat treatment system. A water cooling system, a supercharged air cooling system, a hydraulic oil cooling system, a cooling fan drive system and a heat treatment system are integrated to form a power pack; the water cooling system is used for cooling a water jacket of an engine (4) and a permanent magnet generator (14); the supercharged air cooling system is used for cooling the supercharged air of the engine (4); the hydraulic oil cooling system is used for cooling a fan drive system; the cooling fan drive system is used for controlling the rotating speed of a fan; the heat treatment system is used for carrying out low-temperature pre-heating and flow direction control on cooling water and hydraulic oil. The power-distributed diesel motor train unit cooling system based on the heat treatment system is easy and convenient to mount, enables the space size and weight to be reduced, enables the energy waste to be reduced, enables the engine to always locate at a good working temperature and effectively prolongs the service life of such components as engine and generator, and the application of the motor train unit is not restricted by the outside environment.

The invention provides a double-detector micro near-infrared spectrometer with a whole spectral band of 800-2,500nm. The double-detector micro near-infrared spectrometer consists of a near-infrared light source, an entrance slit, a concave collimating lens, an MOEMS scanning raster micro-mirror, a concave imaging lens, an exit slit and mono-tube near-infrared double sensors different in response wavelength range. In the invention, the improved Czerny-Turner optical path system effectively inhibits aberration and guarantees the imaging quality of the system. By adopting the MOEMS scanning raster micro-mirror integrated with an angle sensor, the double-detector micro near-infrared spectrometer provided by the invention has scanning and light splitting functions in a broadband range and also can accurately control the scanning angle in real time to realize continuous and accurate detection of different wavelengths of the mono-tube near-infrared double sensors. The double-detector micro near-infrared spectrometer has the advantages of low price, small volume, fast response, high precision, wide detection spectral range and the like.

The invention discloses a lower shell of an aluminum alloy battery pack. The lower shell comprises a frame structure, cross beams, a floor and a middle lifting lug. The frame structure is formed by splicing four frames with L-shaped sections, the two groups of cross beams have the same structure and are arranged in parallel, the shape of a cross section of one group of cross beams is inverted T, the shape of a cross section of the other group of cross beams is a step, and the two groups of cross beams and the L-shaped frames are overlapped by adopting male end and female end insertion structures and then are welded. The cross section of the floor is linear, and the floor is welded with the L-shaped frames and the cross beams after inserted connection. The middle lifting lug comprises a cylindrical middle lifting lug body of a hollow structure, the middle lifting lug body penetrates through the cross beams from bottom to top, a top of the middle lifting lug body is matched with a nut, and a circular ring piece penetrates through the middle lifting lug body from top to bottom and is fixed through MIG welding. According to the lower shell, the advantages of aluminum alloy are fully absorbed, the lightweight design of a battery pack box body is realized, the connection is reliable, the sealing performance is good, and the processing efficiency is high.

A minimized and portable infrared spectrograph is composed of pulse infrared ray source, parabolic reflector, scanning micro - lens, flash grating, steering reflector, slit and high sensitivity of room temperature infrared unit detector. It features that a new light path system and pulse infrared ray source based on MEMS technology are applied on said spectrograph.