81results about How to "Reduce the number of modules" patented technology

The invention relates to a power management system and a control method for an automobile body controller thereof. In the invention, refine control for the load of automobile electrical equipment and management for a starter and a generator are realized; a controller area network (CAN) / local interconnect network (LIN) bus is utilized to monitor the power utilization states of the generator, storage batteries and an whole automobile; the voltage of the generator is regulated to realize dynamic charge and discharge for the electric quantity of the storage batteries; and large current loading iscut off in accordance with the dynamic states of the automobile, thus effectively reducing the oil consumption of the automobile, and decreasing the volumes of the storage batteries. A body control module (BCM) is integrated with the functions, thus not only avoiding increasing electronic modules, but also being simple in switching and strengthening the practicability of the power management system.

The invention belongs to the technical field of power electrons and particularly relates to a modularized multi-level full-bridge resonant power electronic transformer topology. The topology specifically comprises high-voltage side three phases which are of three-phase star connection structures, each phase is of the same structure, and each phase comprises Nt subunits and Nt low-voltage side full-bridge modules; each subunit comprises a resonance LC and a high-frequency transformer, and a high-voltage side MMC full-bridge module of each phase is shown in the description; in every two adjacent subunits, each MMC module generates a part of the base frequency phase voltage output and produces a high-frequency square wave with equal production amplitude and opposite phases at the same time, the high-frequency square wave is filtered and passes through bridge arm resonance LC, and after being separated and reduced voltage by the high-frequency transformer, the high-frequency square wave is rectified by a low-voltage side H bridge module to a low-voltage direct current bus. Compared with the high-voltage side and intermediate topology of a traditional power electronic transformer, the high-frequency transformer number, module number, capacitance number and switch number can be saved, and the topology has a good output waveform at the same time.

The invention belongs to the field of electrical power systems, and particularly relates to a pulse width modulation method for a modularization multi-level converter. The modularization multi-level converter (MMC) is composed of three phases and six bridge arms, each bridge arm comprises n sub-modules and an alternating current reactor, and the n sub-modules are successively connected in series. Each sub-module comprises two insulated gate bipolar translator (IGBT), a half-bridge structure and a capacitor, anti-parallel diodes of the IGBT constitute the half-bridge structure, and the half-bridge structure is connected with the capacitor in parallel. The pulse width modulation method includes the following steps: A three-phase saddle-shaped modulating waves are produced; B the saddle-shaped modulating waves and triangle carrier waves are compared to produce pulse-width modulation (PWM) signals; and C the PWM signals are used for controlling the MMC. The method has the advantages of achieving on-line computation easily, achieving engineering simply, being high in direct voltage use ratio, being capable of reducing the quantity of modules in the same voltage power level, and capable of lowering cost, and being obvious in effect when volume is large.

The embodiment of the invention discloses a power supply circuit, and relates to the technical field of power supply, wherein the power supply circuit comprises an adjusting unit and a plurality of packaging units; the plurality of packaging units are connected between a power supply end and the ground in series; each packaging unit comprises one or more sets of components; each set of components comprises a connected chip to be powered and an auxiliary power supply unit; a signal level conversion unit is respectively connected between the chips to be powered in two sets of adjacent components in series; various chips to be powered are respectively connected to the adjusting unit; the adjusting unit performs temperature or frequency adjustment of the various chips to be powered according to the working states of the various chips to be powered; and thus, all the chips to be powered in the power supply circuit are in a normal working state. By means of the embodiment of the invention, the design production cost can be reduced; the problem of low power supply energy conversion efficiency can be effectively overcome; furthermore, the volume of a PCB also can be reduced; and thus, the working voltage of the various chips to be powered is balanced.

The invention discloses a vehicular night curve auxiliary and vision enhancing device, which comprises a follow-up steering illuminating subsystem, an infrared night viewing subsystem, an embedded processing control platform and an LCD (liquid crystal display) screen. The embedded processing control platform is used for acquiring and transmitting vehicular state information and calculating control quantity of the follow-up steering illuminating subsystem to control the follow-up steering illuminating subsystem, and further used for acquiring and processing video signals of the infrared night viewing subsystem. The embedded processing control platform is respectively connected with a vehicular CAN (controller area network) and the follow-up steering illuminating subsystem through CAN bus interfaces, and further connected with an infrared CCD (charge coupled device) camera through a video transmission cable / interface. The embedded processing control platform is connected with the LCD screen. By means of full utilization of the automobile electronic technique and the microelectronic technique and completely technical combination, the visual field is expanded for a driver driving at night, hazardous situation perceptual ability of the driver under adverse conditions can be improved, and accordingly night driving safety can be improved.

The invention relates to the technical field of power electronics and discloses a unified power flow controller in the modular structure. A structurally modified modular multilevel converter is organically combined with a unified power flow controller so that direct-current voltage of the unified power flow controller is halved and the unified power flow controller is imparted with individual phase control capacity; a power electronic bypass switch on the serial side of the unified power flow controller provides higher safety, and the requirement on converter switching devices is lower. In addition, the unified power flow controller has the advantages of compact structure of the modular multilevel converter, flexibility in voltage and power level change, low switch frequency, low loss, low content of output waveform harmonic and the like.

The invention provides a power semiconductor module and a power electronic device applying the same. The power semiconductor module comprises an upper bridge arm circuit, a box-shaped first outer shell for containing the upper bridge arm circuit, a lower bridge arm circuit and a box-shaped second outer shell for containing the lower bridge arm circuit, wherein the upper bridge arm circuit and the box-shaped first outer shell for containing the upper bridge arm circuit are independently packaged into a first module, and the lower bridge arm circuit and the box-shaped second outer shell for containing the lower bridge arm circuit are independently packaged into a second module, i.e. each phase of a three-level frequency converter formed by the semiconductor module provided by the invention only comprises two modules. Compared with the number of modules of each phase of the frequency converter in the prior art, the number of the modules of the frequency converter of the invention is reduced, circumscribed connecting circuits needed between the modules are reduced, the power consumption of each module is further reduced, and at the same time the size of the mutually connected circuits of the three-level frequency converter formed by the semiconductor module provided by the invention is reduced, so that the cost of manufacture is reduced.

The invention discloses a voltage fast detection algorithm suitable for a grid power system low voltage ride through function. The voltage fast detection algorithm suitable for the grid power system low voltage ride through function comprises the following steps: (1) acquiring amplitude value information under the normal operation of a power grid based on a phase-locked loop of a synchronous reference coordinate frame, (2) separating the voltage of a sampled power grid into three-phase of A, B, C, conducting a period of delay to the sampled power grid, and acquiring the absolute value of an difference value, (3) setting a voltage threshold value and comparing the difference value in the step (2) with the voltage threshold value, (4) if the difference value is smaller than the voltage threshold value, then judging that the voltage is normal, if the difference value is larger than the voltage threshold value, then turning to step (5), (5) sending real-time voltage signals into a maximum value tracking module and an over zero point tracking module through each of the phrases of voltage, after judging that the system enters into a low voltage status, and (6) recording the maximum value tracking module and the over zero point tracking module to acquire an amplitude value after the voltage of the power gird drops.

The embodiment of the invention discloses a power supply circuit, a virtual digital currency mining machine and a computer server, and relates to the technical field of power supply. The power supply circuit is characterized in that a plurality of packaging units are connected in series between a power supply end and the ground; each packaging unit comprises one or more groups of elements; each group of elements comprises a chip to be supplied with power and an auxiliary power supply unit which are connected with each other; and a signal level conversion unit is connected in series between the chips to be supplied with power in two groups of adjacent elements. Through adoption of the power supply circuit, the virtual digital currency mining machine and the computer server, the design and production cost can be lowered; the problem of low power energy conversion efficiency is solved effectively; and the PCB (Printed Circuit Board) size can be reduced.

The invention relates to a DC transformer topology based on a three-level bidirectional CLLLC resonant converter and a control method. The topology comprises a high-voltage side topology, a low-voltage side topology and the bidirectional CLLLC resonant converter, wherein the high-voltage side topology comprises N half-bridge three-level circuits which are connected in series, the low-voltage sidetopology comprises N full-bridge circuits which are connected in series, and each group of half-bridge three-level circuits is correspondingly connected with the full-bridge circuits through the bidirectional CLLLC resonant converter. The topology has the characteristic of high voltage class, so the number of modules required by a DC transformer system is reduced, the occupied area and the cost ofthe system are reduced, the fault probability of the system is reduced, the topology adopts an equivalent pulse expansion wave generation method, and bidirectional energy flow, full-range soft switching and voltage sharing of series devices can be realized. Inter-module phase shift control is provided, and ripples of total current output by the low-voltage side parallel modules are reduced. The topological structure that the high-voltage sides of the N modules are connected in series and the low-voltage sides are connected in parallel is suitable for high-voltage large-capacity occasions.

The invention provides a modular air conditioning and purifying machine. The modular air conditioning and purifying machine is formed by connection of a modular functional device through a pipeline. The modular functional device comprises one or more power modules, a plurality of two-way air duct modules and one or more air inlet and outlet head modules, and the modular functional device can also comprise an energy-saving module. According to the modular air conditioning and purifying machine, functions are separated and modular design is achieved, the indoor and / or outdoor air can be purified, and the functional modules can be flexibly combined and replaced to adapt to use occasions with different area sizes and purify different pollution sources.

The invention discloses a hydraulic formwork trolley for rail top air duct post-pouring construction. The hydraulic formwork trolley mainly comprises a support system and a formwork system connected to the upper end of the support system, the formwork system comprises a bottom formwork, an inner side moving formwork and an outer side moving formwork which are hinged to the two sides of the bottom formwork and a formwork collecting oil cylinder. The bottom formwork, the inner side moving formwork and the outer side moving formwork are all integral parts, the number of modules is small, and the concrete forming effect is good. The support system comprises a support and an automatic lifting mechanism and an automatic walking mechanism which are at the bottom of the support, the automatic lifting mechanism achieves integral lifting of the trolley, and the automatic walking mechanism achieves integral longitudinal movement. Hinged assembling is quick and high in efficiency, large lifting equipment is not needed, the occupied space is less, and narrow underground construction requirements can be met. After a section is poured, the outer side moving formwork and the inner side moving formwork are rotated to be open through the formwork collecting oil cylinder to get away from the concrete, the height of the support system is controlled to be lowered to enable the bottom formwork to get away from the concrete, the trolley is directly controlled to move to the next to-be-poured section, and corresponding formwork erection operation can be conducted.

The invention discloses an aerial intelligent robot used for radio monitoring. A receiving antenna, an electronic compass, a radio monitoring receiving unit, a central processing unit and a navigation module are all installed on a robot body; the central processing unit is connected with the navigation module, the electronic compass and the radio monitoring receiving unit; the receiving antenna is connected with the radio monitoring receiving unit; the central processing unit firstly conducts direction finding to find the direction of a radio signal source, then automatically controls flight of the robot body according to direction finding results, and finally calculates the position of the radio signal source according to data further monitored on flight tracks. According to the aerial intelligent robot, one central processing unit is used for controlling radio monitoring and flight of the robot body at the same time, the number of modules is decreased, and mutual interference is reduced; in addition, the integration degree is high, the size is greatly reduced, the power dissipation is reduced, and the electromagnetic compatibility is better.

The invention relates to technique field of organic luminous display unit manufacture system, specially a linear type organic luminous display unit manufacture system. The invention uses immobilized mask plate fixing device, which fixes mask plate in square ring of the fixing device besides replacement of the mask plate. The entire system does not need load frames and relevant parts. This makes inner structure of module more simple, transmission fluency and quick, amount of modules fewer, so that finally cost of system becomes low, operation and system maintenance becomes easy. Because mask plate is permanently in combination with mask plate fixing device, contraposition is carried out on entity of component where mask plate is located, only glass substrate moves to component where mask plate is located and no other component moves, the contraposition is easy, fast and precise, and production efficiency is effectively improved.

The invention relates to an oilfield oil sludge treatment novel process, and aims at providing an oilfield oil sludge treatment novel process with which no agent is needed to be added, oil content in oil sludge can be lower than a national standard, and mass production can be realized. According to the invention, oil sludge and water with an amount 2-4 times that of the oil sludge are added into a heating and stirring tank, and are heated to a temperature of 60-80 DEG C; a mixture of oil sludge and water is added into a high-speed horizontal oil sludge special-purposed centrifuge, such that oil is separated from sediment water; water for diluting and a flocculating agent with weight 1 / 40 to 1 / 60 that of the oil sludge are added to the sediment water, and water is separated through a two-phase sewage horizontal screw centrifuge, wherein the amount of added water is 3-5 times that of water added in the step (1); and an obtained mud cake reaches a standard and can be discharged.

The invention discloses a high-power density DAB-type DC transformer submodule topology, which comprises two input voltage dividing capacitors Cin1 and Cin2, a converter primary side, a converter secondary side, and an output capacitor Co, wherein the input end of the converter primary side is connected in parallel to the two ends of the corresponding input voltage dividing capacitor Cin; the converter primary side is coupled to the converter secondary side through a magnetic circuit; the output end of the converter secondary side is connected in parallel to the two ends of the output capacitor Co. The submodule topology input side serially connects four half-bridges to reduce the voltage stress of each switching device, and the secondary side has the traditional full-bridge structure. In a mode with multiple half-bridges serially connected at the primary side and one full bridge shared at the secondary side, the number of modules is effectively reduced, the size of the whole DC transformer is reduced, and the power density is thus improved.

The invention discloses a stereoscopic parking garage control system based on CAN buses. The stereoscopic parking garage control system comprises a main control unit and execution units used for controlling vehicle carrying plates to move, wherein the execution units are connected with the main control unit based on the CAN buses and arranged according to the layer number of parking places where the execution units are located in groups; transverse movement driving mechanisms of the vehicle carrying plates are connected into and controlled by the corresponding execution units of the adjacent upper layer, and lifting driving mechanisms of the vehicle carrying plates are connected into and controlled by the corresponding execution units of the layer where the vehicle carrying plates are located. The total number of system modules of the control system is further reduced, particularly a great number of signal line connecting cables and power line cables are saved for a large stereoscopic parking garage, the number of the main control and execution modules and the length of connecting cables are standardized more easily, the cost and installing difficulty of the system are reduced, and the installing and debugging efficiency of the garage is improved.

The invention, which belongs to the field of intelligent driving, particularly relates to a method for assisting a driver in crossing a traffic light. The invention provides a method of determining whether a driver can drive the vehicle to pass the traffic light within green light time. Accidents occur frequently at the traffic light intersection because drivers can not determine whether the motorvehicles can pass the intersections successfully within the residual green light time accurately. Many drivers notice that the traffic lights become red light states when arriving at the intersections but can not stop the vehicles timely due to the high speeds, so that the vehicles collide with vehicles from the other sides; and if the vehicle drivers can be informed of the result of determiningwhether the vehicles can pass traffic lights successfully in advance before arriving at the traffic light intersections, the drivers can be assisted well.

The invention provides a multifunctional lightning protection module, which comprises an outer cover provided with a deterioration indication window, wherein the inside of the outer cover is provided with a lightning protection circuit comprising a lightning protection device, an inserting piece, a releasing piece and a connecting piece and a support of a deterioration indication device; the lightning protection device comprises a voltage dependent resistor and a discharge tube; the releasing piece is in electric connection with the inserting piece; the support is formed by connecting a left support and a right support; the cross sections of the left support and the right support are I-shaped; the voltage dependent resistor is arranged on the outer sides of the left support and the right support; an overheat protection and overcurrent protection device is arranged on the inner sides of the left support and the right support; the deterioration indication device is arranged on the top parts of the left support and the right support; the inserting piece of which the inside is connected with the lightning protection device and the outside is connected with a lightning protection base is arranged on the bottom parts of the left support and the right support; the lightning protection circuit is selected to be one of a Y-shaped mode circuit, a transverse protection mode circuit, a 'one plus one' mode protection circuit, a parallel connection combination transverse protection mode circuit, a 'two plus zero' mode circuit and a 'Kelvin' wiring mode circuit; in the same lightning protection module structure, different lightning protection circuits can be combined respectively, so that the one-module multi-purpose is realized; and in the module, any nonlinear element (the voltage dependent resistor) is provided with an overheating release protection device.

The invention relates to an oilfield oil sludge treatment novel process, and aims at providing an oilfield oil sludge treatment novel process with which no agent is needed to be added, oil content in oil sludge can be lower than a national standard, and mass production can be realized. According to the invention, oil sludge and water with an amount 2-4 times that of the oil sludge are added into a heating and stirring tank, and are heated to a temperature of 60-80 DEG C; a mixture of oil sludge and water is added into a high-speed horizontal oil sludge special-purposed centrifuge, such that oil is separated from sediment water; water for diluting and a flocculating agent with weight 1 / 40 to 1 / 60 that of the oil sludge are added to the sediment water, and water is separated through a two-phase sewage horizontal screw centrifuge, wherein the amount of added water is 3-5 times that of water added in the step (1); and an obtained mud cake reaches a standard and can be discharged.

The invention relates to a novel shoe sole, in particular to a damping and charging shoe sole. A vertical spring is arranged in the shoe sole, and a magnet is arranged at the hollow position on the bottom of the spring. A plurality of clamping buckles are arranged on the spring. An electric coil is attached to the spring through the clamping buckles, the two ends of the electric coil are connected with a rectifier, and the rectifier is connected with a power source through charging wires. In the shoe sole, the spring and the electric coil are attached together, and the electric coil repeatedly penetrates the magnet in a sleeving manner to generate induction currents when doing extending and retracting movements along with the spring. The kinetic energy can be converted into the electric energy so that the charging function can be achieved, the number of modules needed for achieving the charging function can also be reduced, the structure is simple, and the wearing comfort level of the shoe sole is improved; and by means of the spring, the elasticity of the shoe sole can be improved, the impact force generated when a foot falls to the ground can be reduced, and a damping effect is achieved.

The invention discloses a classification model establishment method based on dynamic joint distribution alignment and application thereof, and belongs to the field of domain adaptation, and the method comprises the following steps: weighting samples in a source domain data set and a target domain data set respectively, and enabling category distribution to be the same; inputting samples in the two data sets into a joint distribution alignment model, and calculating loss, wherein the joint distribution alignment model comprises: a feature extractor used for extracting features of an input sample; the feature discriminator that is used for judging the source of the features extracted by the feature extractor; the classifier that is used for classifying the features extracted by the feature extractor to generate corresponding category labels; and the category discriminator that is used for judging the source of the category label generated by the classifier; after updating the joint distribution alignment model according to the loss, labeling a pseudo label for a sample in the target domain data set to update a sample weight; after iterative training is finished, forming a classification model by a feature extractor and a classifier. The problem of lack of training data can be solved, and training resources and time are reduced.

The invention relates to a novel structure capable of automatically recognizing continuous signals and discontinuous signals. The novel structure comprises a signal collection and input module, a judgment module, a vibration module, a digital-to-analogue conversion module and a signal processing module, wherein the signal collection and input module is located outside a sensor signal collection chip and is used for inputting signals through a pin, and other modules are located in the sensor signal collection chip. In a working process, the signal collection and input module inputs the signals into the judgment module, the judgment module detects whether a vibration signal is in a port at set intervals, if n (n is more than 2) clk signals are detected, the digital-to-analogue conversion module is automatically turned off, and the vibration module is turned on; if no vibration signal is detected at the port, the vibration module is turned off, and the digital-to-analogue conversion module is turned on so as to convert the received continuous or discontinuous signals into corresponding control signals.

The invention relates to an MMC and full bridge structure based middle and low voltage transformer and a control strategy thereof. A modularized multilevel transverter serves as an inversion device ina middle-voltage bus to AC link, so that the middle voltage side of a DC / DC converter has a better transmission characteristic and higher reliability; a full bridge structure is used in the low voltage side, the structure is simple, and control is convenient; and the different transformers are connected in series to reduce the voltage level of the transformers, and are connected in parallel to improve the power transmission capability of the system, and energy is transmitted to low-voltage buses of low voltage levels. The voltage level of the AC bus can be changed flexibly according to requirements by means of an improved square wave modulation method. A provided topology is more suitable for a present application scene of the middle and low voltage distribution network. A modulation strategy with the topology can reduce the voltage level in the AC link and reduce the voltage stress of a transformer device; the number of modules needed by the system is reduced greatly under the same voltage level, and the cost is reduced; and a good voltage sharing effect is achieved.

The invention relates to a direct-current draw-out power supply of an IEGT power module in the field of high-power electric and electronic converters. A main circuit comprises a filter circuit, a non-isolated flyback converter and an isolated push-pull converter. After input high-voltage direct-current electric energy is filtered through the filter circuit, first-stage conversion is performed on electric energy signals through the non-isolated flyback converter, bus high voltages are converted into DC400V electric signals, filtering processing is performed on the electric signals, then second-stage conversion processing is performed on the electric signals through the isolated push-pull converter, and finally a high-location draw-out power supply can output DC15V electric signals stably and safely after full-wave rectification is performed on the electric signals through a rectifying circuit (picture 4). The draw-out power supply can output direct-current input voltages within the range of 300Vdc-3700Vdc, and can be cooled naturally, provide electricity for operation of the IEGT power module and run safely and reliably in a complicated electromagnetic field environment.

The invention belongs to the field of intelligent parking. The invention discloses a parking image processing method, a device and a system based on an enhancement server, comprising a camera group, which is used for continuously shooting images of a monitoring area; a local controller, configured to perform differential processing on the image of the monitoring area, and extract an image suspected of being a vehicle entering and exiting the yard and configuration information of a parking space in the image; an enhancement server configured to obtain a judgment result of a vehicle state according to an image suspected of being a vehicle entering and exiting the yard and configuration information of a parking space in the image, and to match the judgment result of the vehicle state with a corresponding image suspected of being a vehicle entering and exiting the yard and configuration information of a parking space in the image for marking. The local controller is also used for performing parking state confirmation and synthesizing vehicle parking event information. The invention processes the parking data through the local controller and the enhancement server respectively, which not only improves the judgment accuracy and the processing speed of the parking event, but also reduces the hardware cost, the installation cost and the maintenance cost of the local controller.

The invention belongs to the technical field of petroleum drilling fluid solid controlling processing devices and particularly relates to a slurry transferring device for drilling fluid. The device comprises a slurry transferring tank (1). A drilling fluid inlet (10) is formed in the top of the slurry transferring tank (1). The device is characterized in that a first sand pump (2) and a second sand pump (3) are connected with the bottom of the slurry transferring tank (1). An outlet of the first sand pump (2) is connected with a first automatic control valve (6), the first automatic control valve (6) is connected with a programmable logic controller (PLC) control system (5) through a first executor (8), an outlet of the second sand pump (3) is connected with a second automatic control valve (7), and the second automatic control valve (7) is connected with the PLC control system (5) through a second executor (9). By means of the slurry transferring device, when a drill machine main body is transferred, the number of modules of the drilling fluid solid controlling system translated as a whole is reduced, drilling fluid transferring and loss are avoided, and efficiency is improved.

The invention embodiment provides an implementing method and apparatus of multiple-aerial intermediate radio frequency module. n receiving and n transmitting intermediate radio frequency modules are dismantled into m receiving and m transmitting intermediate radio frequency modules; wherein, n and m are all integers, and n is integer times of m; the dismantled m receiving and m transmitting intermediate radio frequency module are used by single, or used for switching with each other by configuring the n receiving and the n transmitting intermediate radio frequency modules, thereby reducing the module amounts and improving the module integration degree; meanwhile, when the present network is upgraded, only the corresponding modules are increased without changing the whole module in the present network, thereby the configuration is more flexible, and the system performance is improved.

The invention provides a short wave transceiving integration radio frequency module based on an Ethernet bus. The module comprises a control circuit, a radio frequency receiving circuit and a radio frequency excitation circuit, wherein the radio frequency receiving circuit and the radio frequency excitation circuit are connected with the control circuit respectively. The control circuit receives control commands through the Ethernet bus and transmits state information of the short wave transceiving integration radio frequency module, and the radio frequency receiving circuit is used for conducting frequency conversion processing on short wave radio frequency signals to generate medium frequency signals. The radio frequency excitation circuit is used for conducting amplifying and filtering processing on the short wave radio frequency signals. By means of integration of a radio frequency transceiving circuit, amplification and frequency conversion of short wave radio frequency signals of a single module are achieved, and space, weight and cost of a whole machine can be saved. By means of the Ethernet bus, the module has the advantages of generality and good expandability.