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675results about How to "Ensure controllability" patented technology

Water surface floating cleaner with floating type fishing transportation structure

The invention provides a water surface floating cleaner with a floating type fishing transportation structure. The floating cleaner comprises a cleaner body, a floating cylinder installed at the bottom of the cleaner body, a wind power driving device which is arranged at the stern and comprises two fans, a fishing device which is arranged on the bow and comprises two fishing plates arranged at thetwo ends of the bow, a transporting device which is installed on the cleaner body and comprises a conveying caterpillar band and a plurality of comb-shaped partition plates arranged on the conveyingcaterpillar, and a garbage collecting bin arranged on the cleaner body and located below the output end of the transporting device, wherein the rotating speeds of the two fans can be adjusted independently; a fishing region is formed between the two fishing plates, the width of the opening of the fishing region is adjustable, the input end of the transporting device stretches into the fishing region, and the output end of the transporting device is lifted to the portion above the cleaner body through a support. The water surface floating cleaner has the advantages of being high in practicability, convenient to operate and high in automatic degree, and can better achieve the purpose of water surface floating garbage cleaning inside small and medium size lakes, small ponds and the like.
Owner:SHANGHAI DIANJI UNIV

Trusted computing cryptogram platform suitable for general computation platform of electric system

The invention provides a trusted computing cryptogram platform suitable for a general computation platform of an electric system. The cryptogram platform comprises a trusted computing cryptogram module and a trusted software system, wherein the trusted computing cryptogram module comprises a trusted measurement root, a trusted storage root and a trusted report root and is a transferring starting point of a platform trust chain; and the trusted software system comprises a trusted computing cryptogram driving module, a measurement module and an auditing module and provides an interface which uses the trusted computing cryptogram platform for an operating system and application software. The trusted computing cryptogram module is the trusted root which provides trusted environment for the operation of the trusted computing cryptogram platform, and the trusted software system is a core for realizing the functions and the service of the trusted computing cryptogram platform and provides guarantee for the management of the trusted computing cryptogram platform. The trusted computing cryptogram platform can provide functions including static measurement, dynamic measurement, white lists, access control and the like for a business system, and manages the sources and the operation of the system software to guarantee that the software is trusted, recognizable and controllable.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +5

Method and system for monitoring network behavior data, risk monitoring method and risk monitoring system

The invention provides a method and a system for monitoring network behavior data, a risk monitoring method and a risk monitoring system, wherein the method particularly comprises the steps of regularly acquiring network behavior data of a user from an online application, and using the network behavior data as historical network behavior data for performing cluster storage; determining a corresponding risk model according to the historical network behavior data of the user; according to the definition of the risk model, calling historical network behavior data in cluster storage for performing historical risk identification, and using a corresponding historical risk identification result as a parameter of the risk model for storage; acquiring online network behavior data of the user in real time; performing online risk identification on the online network behavior data according to the risk model, and obtaining an online risk identification result; and according to the online risk identification result, processing a credit object which is related with the user according to the online risk identification result. The method, the system, the risk monitoring method and the risk monitoring system can improve timeliness and accuracy in credit risk monitoring.
Owner:ADVANCED NEW TECH CO LTD

Battery heating structure built into motor driven system, and method thereof

The invention discloses a battery heating structure built into a motor driven system, and a method thereof. The method includes the following steps: a battery management system detects and acquires the voltage and the temperature of a power battery pack, and calculates remaining power information; the battery management system notifies the motor driven system to enter a heating state if the detected remaining power of the power battery pack is higher than a lower normal work limit, the lowest voltage is higher than a lower limit and the temperature is lower than a lower normal work temperature limit; the battery management system notifies the motor driven system to quit the heating state if not; the motor driven system quits a general work state and enters the heating state; the battery management system checks the state of the power battery pack in the heating state, and notifies the motor driven system to quit the heating state when the remaining power of the power battery pack or the lowest voltage is lower than the lower limit or the temperature of the power battery pack reaches the normal work temperature; and the motor driven system quits the heating state and enters the general work state. The battery heating built into the motor driven system, and the method thereof realize uniform heating and fast heating speed.
Owner:FAWER AUTOMOTIVE PARTS

Low-temperature rapid heating method and system for power battery pack for electric vehicle

The invention discloses low-temperature rapid heating method and system for a power battery pack for an electric vehicle. The low-temperature rapid heating system comprises a battery management system and a heating controlling system, wherein the battery management system is used for managing energy and heat of the power battery pack and carrying out short circuit protection; the heating controlling system consists of a controller, two IGBT transistors, an inductor and two diodes; the controller controls the two IGBT transistors by applying a pulse width modulated signal to realize a transient short circuit and drives the two IGBT transistors to be simultaneously connected or disconnected so as to control a current in a loop; by virtue of a pulse width modulation mode, the connection and disconnection states of the first and second IGBT transistors are continuously regulated, so that a current in the inductor fluctuates by being lower than a fixed value limited by bus insurance. According to the low-temperature rapid heating method and system disclosed by the invention, the current repeatedly passes through an internal resistor of the battery to generate heat for heating the power battery pack, and the battery pack is rapidly heated. The low-temperature rapid heating method and system have the advantages that large heating current and the controllability of the system are both ensured; the battery heating efficiency is improved by adopting a method of the transient short circuit.
Owner:FAWER AUTOMOTIVE PARTS

Single-drive synchronous unfolding mechanism provided with multiple folding control planes

The invention discloses a single-drive synchronous unfolding mechanism provided with multiple folding control planes. Each control plane of a traditional small guided missile is independently driven by a torsion spring to be unfolded, synchronism is difficultly ensured, and the adopted unfolding mechanism enable the radial size of the guided missile to be large during folding. The single-drive synchronous unfolding mechanism comprises a cabin body, an actuator cylinder, a connecting rod and four unfolding mechanisms, wherein an actuator cylinder installing seat is fixed to the cabin, the actuator cylinder is connected with an actuator cylinder installing seat sliding pair, four actuator cylinder convex lugs are evenly distributed on the actuator cylinder, each actuator cylinder convex lug is hinged to the inner end of one connecting rod, and the outer ends of the four connecting rods extend out of installing holes formed in the unfolding mechanism respectively and are hinged to slide blocks of the corresponding unfolding mechanism. The unfolding mechanism comprises a rudder stick, the slide blocks, lug pieces, a middle rudder, a rudder tip, connecting rods and a spring locking mechanism, wherein the spring locking mechanism is used for locking the slide blocks and a rudder shaft. The transverse size of a missile body is effectively decreased during control plane folding. The controllability and synchronism in the unfolding process of the four control planes are ensured through driving of the single actuator cylinder.
Owner:ZHEJIANG SCI-TECH UNIV

Multi-stage perforation supercharging method

The invention discloses a multi-stage perforation supercharging method. In the technological processes, a supercharging device is connected with the tail of a perforation gun of the upper level, after the perforation gun of the upper level is detonated, the perforation gun transmits detonation waves to the supercharging device, a baffle igniter of the supercharging device is detonated to ignite a supercharging gun powder mechanism, the supercharging gun powder mechanism generates high-pressure gas to push a supercharging piston to move to shear a shear pin of the supercharging device, and to push the piston to extrude a liquid inside an interlayer oil pipe so as to increase the pressure inside the interlayer oil pipe, and the shear pin of the lower-level detonation device is shorn off to detonate a pressure detonation device and a perforation gun of the lower level so as to complete the perforation operation of the lower level. The method can ensure the stability and the controllability of pressure generated due to the combustion of supercharging gun powder in a supercharging cavity, the pressure is then acted on the supercharging piston to ensure that the supercharging piston moves stably, the method can also realize high-precision shearing, can be used in a pressure type multi-stage perforation process, and is suitable for various well conditions.
Owner:CHUANNAN ENERGY TECH CO LTD

Method and device for decoding iterated internal code and evaluating channel for orthogonal frequency division multiplexing system

ActiveCN101605120ACircular Convolution AccurateCircular convolution is accurateMulti-frequency code systemsOrthogonal multiplexTime domainCoding decoding
The invention discloses a method and a device for decoding an iterated internal code and evaluating a channel for an orthogonal frequency division multiplexing system. The iterating method comprises the following steps: at a transmitting end, carrying out internal code encoding and intraframe interleaving by a code with a long short code; at a receiving end, calculating circular convolution of an OFDM time domain data block and an evaluation value of channel time domain impulse response based on an initial evaluation value of the channel time domain impulse response; completing constellation de-mapping according to the channel evaluation and the result of circular convolution to acquire bit soft information; carrying out intraframe de-interleaving and internal code decoding on the bit soft information to acquire decoded bit soft information, carrying out intraframe interleaving on the decoded bit soft information, and remapping the constellation; and updating the evaluation value of the channel time domain impulse response according to the remapped result, and carrying out channel evaluation post-treatment. The method and the device can improve channel evaluation precision, and reduce system error rate, thereby improving system performance, in particular mobile performance, and ensuring complexity and controllable time delay of the system.
Owner:TSINGHUA UNIV

File redirection technology based virtualized security desktop

The invention discloses a file redirection technology based virtualized security desktop. Validity in using the security desktop is guaranteed through a login control module; operation behavior results of users can be reliably protected by an encrypted virtual storage file system; the operation behavior results of the users in the virtualized security desktop are 'internally' redirected to the encrypted virtual storage file system through a user operation middle layer and the whole redirection process is encrypted and monitored under a communication encryption module and a black and white list control module. The virtualized security desktop system is 'totally separated' from an original desktop, operations of adhering, copying, shifting and the like of the files cannot be performed between the virtualized security desktop system and the original desktop; the files on an original desktop system are mapped to the same catalog on the virtualized desktop; results (files, register lists, temporary cache and the like) generated from operation of the users in the virtualized desktop are encrypted for redirection treatment, and all the operations in the virtualized desktop are guaranteed to be safe, reliable and controllable.
Owner:中电科网络安全科技股份有限公司

Unmanned patrol aircraft for power transmission lines

The invention relates to an unmanned patrol aircraft for power transmission lines. The unmanned patrol aircraft comprises an aircraft body, a camera system, a cloud deck, a nanometer battery, an aircraft control system, a wireless transmission system, a GPS positioning system and a ground receiving, controlling and managing system. The unmanned patrol aircraft has four ailerons which are symmetrically installed at two sides of a main beam; the unmanned patrol aircraft has the advantages of stable flight, a fast flight speed, high flexibility and great loading capacity; front and rear beams are of segmented design, which facilitates adjustment and wiring. The aileron horns of the ailerons are movably connected with an aileron fixing frame through bolts; the aileron fixing frame is equipped with folding positioning seats; the aileron horns rotate with the bolts as centers and are limited through the folding positioning seats; such a structure enables the aileron horns to be parallely drawn close onto the main beam after folding, so the unmanned patrol aircraft has a small size and is easy to carry. After the front and rear aileron horns are open, lines among center points of four motors on the front and rear aileron horns form a square, and such a structure enables the aircraft to maintain balanced flight and to have reduced current loss and long flying time.
Owner:STATE GRID CORP OF CHINA +1

Closed-loop control method for power generation power of range extender of electric automobile

The invention discloses a closed-loop control method for power generation power of a range extender of an electric automobile. The method comprises the six steps of mechanical power prediction, mechanical power modification, mechanical power decoupling, migration trajectory control, mechanical power realization and power generation power feedback. According to the method, feedforward prediction and feedback closed-loop control are carried out on a range extender system at the same time, the advantages of high feedforward control response are kept, the characteristics of control output stability and high control precision of feedback are further inherited, so that the errors between the target power generation power and the actual power generation power of the range extender are reduced, and the high-efficient and stable operation of the range extender is ensured. According to the method, an optimal operation trajectory line and a trajectory control line are arranged, so that in steady-state and transient-state power generation power regulation processes of the range extender, the rotating speed and the torque of the range extender can be adjusted and transferred along the optimal operation trajectory line as far as possible, the efficiency and the emission of the range extender reach an ideal state while the range extender responds to request power with different levels, and the controllability and the running performance of the range extender are effectively ensured.
Owner:ZHEJIANG UNIV
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