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157results about How to "Guaranteed normal output" patented technology

New energy bearing capacity assessment method considering transient overvoltage constraint

The invention discloses a new energy bearing capacity evaluation method considering transient overvoltage constraint, and belongs to the technical field of energy safety. The invention discloses a new energy bearing capacity evaluation method considering transient overvoltage constraint. The method comprises the following steps: S1, calculating a short-circuit ratio of a multi-new energy station sending end system; s2, calculating the transient overvoltage of a new energy station node in the sending end system; and S3, constructing a power grid new energy bearing capacity evaluation model considering the transient overvoltage constraint. According to the new energy bearing capacity evaluation method considering the transient overvoltage constraint, the mathematical relation among the transient overvoltage amplitude, the system short-circuit ratio and the active power of the new energy station is used as a main line, and the system short-circuit ratio is used as an intermediate quantity; a mathematical expression of a new energy station node transient overvoltage amplitude and new energy station active power is established, and a power grid new energy bearing capacity evaluation model considering multiple new energy station transient overvoltage constraints is constructed, so that it is ensured that an optimal new energy station output value can be obtained, and safe operation of a power grid is ensured.
Owner:JILIN ELECTRIC POWER RES INST LTD +2

Voice control method, device and system, household appliance, storage medium and product

The invention relates to a voice control method, device and system, a household appliance, a storage medium and a product, and the method comprises the steps: firstly obtaining an environment noise parameter of a current environment under the condition of detecting that a user sends a voice wake-up word, and then carrying out the adaptation of voice recognition sensitivity and voice reply volume for the current environment through combining with the environment noise parameter. And finally, related actions of voice control are executed according to the adaptive voice recognition sensitivity and the voice reply volume, namely, a voice action instruction is recognized, and a reply signal is fed back to the user based on the voice action instruction. Therefore, the voice action instruction sent by the user can be accurately recognized, the reply signal can be transmitted to the user with enough volume, and the possibility of voice control failure is effectively reduced.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Light source driving method and system capable of continuously dimming

ActiveCN119136386AImprove linear limitationsEasy to adjustElectrical apparatusHigh energyPwm signals
The invention relates to a light source driving method and system capable of continuously dimming, and relates to the technical field of light source driving, and the method comprises the steps: obtaining an initial voltage signal and an initial current signal inputted by a vehicle lamp power supply of a vehicle; filtering the initial voltage signal and the initial current signal to obtain a filtered voltage signal and a filtered current signal; based on the voltage signal and the current signal, predicting and updating the state of a vehicle lamp power supply through an extended Kalman filtering algorithm; according to the brightness required by the vehicle lamp, the output brightness of the vehicle lamp is controlled by adjusting the duty ratio of the PWM signal; the real-time illumination intensity and the environment illumination intensity are obtained through a vehicle lamp sensor, and the duty ratio is adjusted in a self-adaptive mode based on a PID control algorithm; and monitoring in real time, minimizing the total energy consumption of the vehicle lamp based on an energy optimization algorithm to obtain the minimum total energy consumption of the vehicle lamp, and driving and adjusting the vehicle lamp under the minimum total energy consumption. According to the invention, continuous dimming operation with high accuracy, high energy efficiency and higher stability can be provided.
Owner:LANCE VEHICLE TECH CO LTD

Narrow linewidth fiber laser system based on self-injection locking feedback mechanism

The invention discloses a narrow linewidth optical fiber laser system based on a self-injection locking feedback mechanism, which belongs to the field of optical fiber communication and comprises a main cavity, a self-injection locking feedback module and an erbium-doped optical fiber amplifier. Wherein the main cavity internally comprises a composite ring cavity filter for selecting a longitudinal mode; the composite ring cavity filter is sequentially connected with a polarization controller, a first erbium-doped fiber, a first wavelength division multiplexer, a second erbium-doped fiber and a first uniform fiber bragg grating through a first circulator; the output end of the first uniform fiber bragg grating is connected with the input end of a first optical fiber coupler, one output end of the first optical fiber coupler is sequentially connected with an optical fiber delay line and a Faraday rotating mirror in the self-injection locking feedback module, and the rotating angle of the Faraday rotating mirror is 90 degrees; and the other output end of the first optical fiber coupler is connected with the input end of the erbium-doped optical fiber amplifier. Through the above structure, the stability of the laser system is improved.
Owner:BEIHANG UNIV

Novel laminated glass production process

The invention provides a novel laminated glass production process, relates to the technical field of laminated glass production, and comprises a novel laminated glass production line. The novel laminated glass production line comprises a stainless steel frame film coating station, a glass warm frame station, a glass warm frame film coating station, a thermal shrinkage and glass multi-layer compounding station, a glass compounding station, an edge sealing line station, an air inflation and glue sealing station and a glass packaging station. The production efficiency and the product quality of the laminated glass can be remarkably improved by adopting an integrated production process flow, the production process not only ensures the output of qualified products, but also increases the overall function of the production line by realizing the whole process automation from the glass plate, the film-coated frame to the final finished product, and meanwhile, the product quality is ensured by multiple detection mechanisms, so that the production cost is reduced. The production qualified rate is improved, errors and damage caused by manual operation are reduced, the production cost is reduced, and the production efficiency is improved.
Owner:QINGDAO WANYU INTELLIGENT EQUIP TECH CO LTD

ROS-based robot integrated multi-mode fusion intelligent interaction system and method

The invention discloses an ROS-based robot integrated multi-mode fusion intelligent interaction system and method, and the system comprises a monitoring layer which comprises a computer and a man-machine interaction module, subscribes information collected by a sensor in a decision layer through an ROS, carries out the real-time voice recognition and gesture recognition, and displays a recognition result, a control instruction corresponding to an identification result is issued to a decision-making layer carried by the robot through an ROS topic, or a motion control instruction is directly issued through the ROS topic and sent to an execution layer; the decision-making layer is carried at a robot end and comprises an edge embedded calculation module and a sensor, and the edge embedded calculation module receives the control instruction issued by the man-machine interaction module, carries out auxiliary decision making in combination with information collected by the sensor and sends an action instruction corresponding to the control instruction to the execution layer through an ROS topic message; according to the execution layer, the robot subscribes to the action instruction issued by the decision-making layer or the man-machine interaction module through the ROS to complete the specified motion. According to the invention, the use of more Ubuntu terminal commands in the ROS use process is avoided, and the problems of poor integration of software and hardware of a robot system, incomplete functions of a control system and the like are solved.
Owner:杭州智元研究院有限公司

Intelligent door lock charging control method and device, computer equipment and storage medium

The invention relates to an intelligent door lock charging control method and device, computer equipment and a storage medium, and the method comprises the steps: monitoring the electric quantity of a door lock in real time, and triggering a charging request signal under the condition that the electric quantity of the door lock is lower than a preset low electric quantity threshold value; according to the charging request signal, door lock orientation information and alignment angle information are obtained, a light source emission angle is adjusted according to the door lock orientation information and the alignment angle information, and a charging instruction is generated; adjusting light source emission intensity and starting light source emission according to the charging instruction; and under the condition that the electric quantity of the door lock reaches a preset high electric quantity threshold value, the charging process is stopped, and corresponding charging information is recorded. The method has the effect of improving the charging efficiency of the intelligent door lock.
Owner:HUABO ZHIZAO TECH (SHENZHEN) CO LTD

Crystallization filtering device for pesticide production

The utility model provides a crystallization filtering device for pesticide production, which belongs to the technical field of pesticide production equipment and comprises a crystallization tank body and a separation box body, and a filter screen plate is arranged in the separation box body; the crystallization tank body is provided with a heat exchange mechanism, and the heat exchange mechanism comprises a jacket and a heat exchange cylinder arranged in the crystallization tank body; the heat exchange cylinder and the crystallization tank body are coaxially arranged; the crystallization tank body is further provided with a stirring and scraping mechanism, the stirring and scraping mechanism comprises a motor, and the output end of the motor is connected with the rotating shaft; the rotating shaft penetrates through the heat exchange cylinder and is rotationally and hermetically connected with the heat exchange cylinder; a scraping assembly is arranged on the rotating shaft below the heat exchange cylinder and comprises two positioning rods, and the two positioning rods are connected with the rotating shaft through connecting rods; a scraping plate is arranged on each positioning rod and is respectively propped against the heat exchange cylinder and the crystallization tank body. The device integrates crystallization and filtration, so that the cooling efficiency and the crystallization efficiency of the device are improved, the cooling and stirring effects are considered, and crystals are not left and are easy to discharge.
Owner:INNER MONGOLIA ZHONGGAO CHEM CO LTD

A method and device for intelligent concrete unloading based on real-time monitoring of current

The present invention relates to the technical field of concrete unloading, and the present invention provides a method and device for intelligent concrete unloading based on real-time monitoring of current, the method comprising obtaining a current signal of a concrete mixing process, establishing a neural network model, monitoring the concrete mixing state, and intelligent concrete unloading. Through the above method, the present invention can continuously judge the mixing state at each moment, so as to timely determine the time point when the concrete is mixed in a uniform state, and can predict the fluidity of the concrete in a uniform mixing state, so as to timely stop mixing and control the opening of the discharge port during unloading, thereby ensuring that the concrete is discharged in a uniform state while avoiding the waste of unnecessary mixing time, improving the quality and efficiency of production, avoiding excessive unloading or blockage caused by good or poor fluidity, and making the mixing production of concrete more stable and orderly.
Owner:FUJIAN SOUTHERN HIGHWAY MECHANICAL CO LTD +1

Automatic stacking and conveying device

The present invention discloses an automatic stacking and conveying device, which includes a conveying mechanism and a stacking and lifting mechanism. The conveying mechanism is provided with a conveying platform structure; the stacking and lifting mechanism includes a material storage component and a lifting drive component. The material storage component includes two material storage plates. A plurality of material storage slots are provided on the two material storage plates at the front and rear sides of the conveying platform structure of the two material storage plates. The lifting drive component is used to move the two material storage plates up and down. When there are products waiting to be grabbed at the discharging direction station on the conveying platform structure, and the glass at the feeding direction station has also reached the designated position, and the two sides of the glass plate extend into the corresponding two material storage slots, the lifting drive component drives the two material storage plates to rise one grid, which can ensure the output of products, and will not affect the product quality in the case of material shortage. It also meets the needs of intermittent discharging and continuous feeding, avoids the situation of product accumulation, improves product quality and reduces the unit energy consumption of products.
Owner:GUANGDONG SHUNDE MAYUAN ROBOT TECH CO LTD

An efficient crusher that is easy to unload

The present invention belongs to the technical field of material crushing, and in particular to an efficient crusher which is convenient for material unloading, comprising a supporting base, a high manganese steel bracket, a feeding frame, a feeding pipe rack, a stamping assembly, a scraping assembly, a feeding assembly and a fine crushing assembly, wherein the supporting base is fixedly connected to the lower end of the high manganese steel bracket, the stamping assembly is installed on the top of the high manganese steel bracket, the feeding frame is installed obliquely above the high manganese steel bracket, the scraping assembly is installed in the middle of the stamping assembly and the high manganese steel bracket, the feeding pipe rack is installed on the outside of the scraping assembly, the feeding assembly is sleeved on the outside of the top of the feeding pipe rack, and the fine crushing assembly is installed on the outside of the feeding pipe rack; after coarse crushing, this product can complete the scraping operation while pushing the material, and shake the movable crushing plate through a vertical motor, and repeatedly impact the material on the meshing surface of the bidirectional crushing teeth to achieve the purpose of re-crushing the material, thereby achieving the integrated operation of coarse and fine crushing of this product.
Owner:JINAN YUEZHEN MASCH CO LTD

LVDS (Low Voltage Differential Signaling) receiving circuit with wide common-mode input range

The invention discloses an LVDS (Low Voltage Differential Signaling) receiving circuit with a wide common-mode input range. The LVDS receiving circuit comprises a common-mode conversion circuit, a main comparator circuit, a secondary comparison circuit and a logical judgment circuit, the common-mode conversion circuit is used for converting an external wide common-mode input differential signal into a signal with constant common-mode voltage and no attenuation of the differential signal; the main comparator circuit identifies the converted differential signal to complete differential-to-single-ended data conversion; the secondary comparator circuit is composed of two low-speed comparators; and the logic judgment circuit judges the output of the main comparator and the window comparator to ensure that the output of the input end of the circuit group is a constant level under the short circuit and disconnection conditions, so that the function of dynamic failure protection of the circuit is realized. The wide common-mode input circuit can realize discrimination of wide common-mode input signals ranging from-4V to 5V, and has a dynamic failure protection function.
Owner:BEIJING MICROELECTRONICS TECH INST

A zero-discharge treatment device for oil well wastewater and its treatment process

The invention discloses a zero-discharge treatment device for oil well wastewater, comprising a stable gas outlet mechanism, the stable gas outlet mechanism comprising a first semi-ring pipe column, a second semi-ring pipe column and a connection component arranged between the first semi-ring pipe column and the second semi-ring pipe column, two groups of gas pipes are arranged at the bottom of the dissolved gas delivery pipe branch pipe, and are respectively inserted into the first semi-ring pipe column and the second semi-ring pipe column, a base plate is arranged on the inner wall of one side of the gas pipe, the first semi-ring pipe column and the second semi-ring pipe column are both slidably arranged on the base plate, a plurality of gas outlet holes are arranged at the bottom of the first semi-ring pipe column and the second semi-ring pipe column, two sides of the connection component are respectively connected with the first semi-ring pipe column and the second semi-ring pipe column to make the first semi-ring pipe column and the second semi-ring pipe column move in opposite directions. The invention can stably float bubbles formed by the dissolved gas spraying upward from the bottom of the gas floatation pool by arranging the stable gas outlet mechanism, so that impurities of different heights and sizes are more stably adhered to by the bubbles and brought to the wastewater surface, and stably scraped off by the scraper.
Owner:FUZHOU QINRONG ENVIRONMENTAL PROTECTION ENG

Map matching method and device and storage medium

Embodiments of the invention provide a map matching method and apparatus, and a storage medium. The method comprises the steps of obtaining a to-be-matched map; inputting a to-be-matched map into the image segmentation model to obtain a plurality of image segmentation mask images; determining a plurality of target mask images greater than a threshold value from the plurality of image segmentation mask images; performing positive and negative binarization processing on each target mask image to obtain a positive and negative binarized mask image; aiming at each standard map in a preset standard map library, obtaining a standard map mask map and the size of the standard map mask map; generating a new positive and negative binarization mask picture of each target mask picture according to the standard map mask picture and the size; based on an image matching model, respectively matching the generated new positive and negative binarization mask images with a standard map mask image, and respectively outputting collocation point pairs of each target mask image and the standard map mask image; and determining a standard map matched with the to-be-matched map according to the maximum matching point pairs. According to the invention, intelligent map matching can be realized.
Owner:CHINESE ACAD OF SURVEYING & MAPPING

Novel laminated glass production line

The invention provides a novel laminated glass production line, and relates to the technical field of laminated glass production, and the novel laminated glass production line comprises a stainless steel frame film coating station, a glass warm frame station, a thermal shrinkage and glass multi-layer composite station, a glass composite station, an edge sealing line station, an inflation glue sealing station and a glass packaging station, the process from a glass plate and a film-coated frame to a final finished product is achieved, meanwhile, a series of functions of conveying, glass cleaning, dispensing, adhesive tape adhering, film coating, PET film thermal shrinkage, mechanical arm grabbing and compounding, fixed-length pressing, punching and inflation, glue sealing, visual inspection, haze detection, angle bead installation, packaging, bundling, stacking and the like are achieved, and qualified product output is guaranteed; according to the laminated glass production line, the overall function of the production line is increased, the production efficiency of laminated glass is improved, meanwhile, multiple detection can be conducted on products, unqualified products can be screened, and the production qualification rate of the products is increased.
Owner:QINGDAO WANYU INTELLIGENT EQUIP TECH CO LTD

Discharging frame of PVC pipe production line

The utility model discloses a discharging frame of a PVC pipe production line, and relates to the technical field of PVC pipe production, the discharging frame comprises a rotating table, a PVC pipe conveying assembly is installed on the top of the rotating table, the PVC pipe conveying assembly comprises a bearing plate installed on the top of the rotating table, a transmission shaft is movably installed on the inner side of the bearing plate, and the transmission shaft is movably installed on the outer side of the rotating table. A transmission roller is installed on the outer side of the transmission shaft, and the transmission roller is thin in the middle and thick in two ends. The PVC pipe conveying assembly on the top is fixed through the transmission rollers and the rotating table, stable operation of the PVC pipe conveying assembly is guaranteed, the bearing plate on the top is fixed through the rotating table, the transmission shaft on the inner side is supported by the bearing plate, the transmission shaft rotates stably, and the transmission shaft drives the transmission rollers on the outer side to rotate. The middle of the transmission roller is thin, and the two ends of the transmission roller are thick to form a limiting structure which is used for limiting the PVC pipe on the top, it is guaranteed that the PVC pipe is output at the designated position, and the discharging precision is guaranteed.
Owner:HANGZHOU HONGSHUN PIPES IND CO LTD

Discharging device for low-viscosity materials

The utility model relates to a discharging device for low-viscosity materials, which comprises a connector mechanism, a plug mechanism is mounted in the connector mechanism in a sliding and sealing manner, the plug mechanism and the connector mechanism are limited through a bolt, the axial displacement stroke of the plug mechanism is limited by the bolt, and the plug mechanism is connected with the connector mechanism in a sliding and sealing manner. Therefore, when the plug mechanism moves inwards to the first limit position, the discharging device is closed, and when the plug mechanism is pulled outwards to the second limit position, the discharging device is opened. By arranging the connector mechanism and the plug mechanism, the low-viscosity materials can be prevented from leaking during stirring, and the materials can be prevented from flowing out of the container along with the plug during discharging to cause material waste and environmental pollution, so that the discharging effect is improved.
Owner:WUXI RICH INTELLIGENT EQUIP CO LTD

Pathological section atomization machine with refrigeration function

ActiveCN224072405USolving the problem of water mist heating upContinuous and stable outputPreparing sample for investigationMachines using electric/magnetic effectsMedicineApparatus instruments
The utility model discloses a pathological section atomization machine with a refrigeration function, which relates to the field of medical instrument detection instruments, and comprises an atomization machine body, a refrigeration device and a control device, the refrigeration device comprises a cooling fan, a cooling fin, a semiconductor refrigeration sheet and a metal heat conduction rod; the refrigeration device takes a semiconductor refrigeration sheet as a refrigeration source, the heat dissipation surface of the semiconductor refrigeration sheet faces outwards, and the semiconductor refrigeration sheet is connected with a heat dissipation sheet; the outer side of the cooling fin is connected with a cooling fan; the refrigeration face of the semiconductor refrigeration piece faces inwards and is connected with one end of a metal heat conduction rod, and the other end of the metal heat conduction rod penetrates through the side wall of the atomizing chamber, is directly immersed in water liquid and is fastened through a bolt for refrigeration and cooling. According to the utility model, the rising of the water mist temperature in the working process of the atomizing machine can be obviously controlled, the environmental requirement of cold mist required by pathological section work is met, and the safety and the stability of section work can be obviously improved.
Owner:NANJING YONGYAO LASER TECH CO LTD

Rotor magnetic ring and frameless motor

The utility model discloses a rotor magnetic ring and a frameless motor, the rotor magnetic ring comprises m magnetic circuit splicing blocks which are annularly and sequentially spliced, the m magnetic circuit splicing blocks are divided into n first splicing blocks, each first splicing block is provided with a first inner cambered surface and a first outer cambered surface, and the chord length of the first outer cambered surface is greater than that of the first inner cambered surface; each second splicing block is provided with a second inner cambered surface and a second outer cambered surface, the chord length of each second outer cambered surface is smaller than that of each second inner cambered surface, and m is larger than or equal to 2 and equal to 2n; the side waists of the first splicing blocks abut against the side waists of the second splicing blocks, and the first splicing blocks and the second splicing blocks are arranged in a staggered mode in the circumferential direction. When the rotor magnetic ring is applied to the frameless motor, a magnetic conductive ring is equivalently canceled, so that the overall size of the frameless motor is obviously reduced, and the difficulty of manually assembling the frameless motor is reduced.
Owner:CHINA LEADSHINE TECH CO LTD +1

Raindrop distribution trueness evaluation method and device for site simulated rainfall

The invention relates to a raindrop distribution trueness evaluation method and device oriented to site simulated rainfall. The method comprises the following steps: collecting microscopic data of real rainfall at each level; on the basis of microscopic data of real rainfall, calculating an average raindrop distribution matrix of different grades to serve as an evaluation benchmark; microcosmic data of simulated rainfall of a site are collected, and a raindrop distribution matrix of the simulated rainfall is calculated; and calculating the similarity between the raindrop distribution matrix of the simulated rainfall and the average raindrop distribution matrix of each grade, and determining a truth degree evaluation result of the simulated rainfall of the field according to the similarity. Compared with the prior art, the method provided by the invention starts from the level of the microscopic raindrop distribution matrix of rainfall, constructs the evaluation criterion based on the raindrop distribution matrix of the real rainfall sample, and can realize the quantitative evaluation of the raindrop distribution trueness of the simulated rainfall by quantifying the similarity between the simulated rainfall sample and the evaluation criterion.
Owner:TONGJI UNIV

A carton forming apparatus

The application discloses a carton forming device, wherein the taking and overturning mechanism acts on the first side during rotation to take out the carton from the carton temporary storage box and then deliver the carton to the receiving and overturning mechanism; during the process of delivering the carton to the receiving and overturning mechanism, the stopper of the stop and overturning mechanism acts on the second side during rotation to make the third side and the first side away from each other, so that the carton body enters an open box posture; after the carton body enters the open box posture, the turning and overturning mechanism acts on the second side during rotation to make the carton body overturn in the direction opposite to the delivery direction of the taking and overturning mechanism, and then the carton body is output from between the turning and overturning mechanism and the receiving and overturning mechanism. The device makes the carton body recover from the folded state to the open box posture, and automatically folds the sealing pieces at both ends of the carton body, realizes the three-dimensional forming of the carton, has high automation degree, improves production efficiency and production quality, and is simple and convenient to use.
Owner:WEIFANG BISHENG PRECISION EQUIP CO LTD

Aero-engine

The invention discloses an aero-engine which comprises a carburetor and an air inlet manifold, the carburetor is connected with the air inlet manifold through a connecting rubber pipe, and a heating assembly for heating the air inlet end of the air inlet manifold is arranged between the carburetor and the connecting rubber pipe. Working heat of the engine can be recycled and used for heating the oil-gas mixture, sufficient combustion of the oil-gas mixture in the air cylinder is guaranteed, and the output power can be improved while normal output of the engine is guaranteed.
Owner:CHONGQING ZONGSHEN AERO ENGINE MFG CO LTD

Digital / analog conversion circuit

The digital / analog conversion circuit comprises a first DAC, the output end of which is connected with the first end of a first resistor; the output end of the second DAC is connected with the first end of the second resistor, the second end of the first resistor and the second end of the second resistor are connected with the first end of the first trimming resistor, and the second end of the first trimming resistor is connected with the first end of the third resistor; the output end of the third DAC is connected with the first end of a second trimming resistor, the second end of the second trimming resistor is connected with the first end of a fourth resistor, the second end of the third resistor and the second end of the fourth resistor are connected with the first end of a third trimming resistor, and the second end of the third trimming resistor is connected with the first end of a fifth resistor; the output end of the fourth DAC is connected with the first end of a fourth trimming resistor, the second end of the fourth trimming resistor is connected with the first end of a sixth resistor, and the second end of the fifth resistor and the second end of the sixth resistor are connected with the positive electrode input end of the operational amplifier.
Owner:WUXI QIANNUODE SEMICON CO LTD

A travel control method for a garbage carrying robot and a medium

ActiveCN115959117BGuaranteed normal outputEnsure operational efficiency
A method for controlling the movement of a garbage-carrying robot, wherein the garbage-carrying robot is equipped with a retractable and adjustable drive device, the method includes the following steps: detecting the load status of the garbage bin and confirming that the garbage bin lid is closed; calculating the two-dimensional center of gravity N of the garbage bin based on the weighing, and calculating the overall center of gravity (N2) based on the robot's center of gravity (N1); adjusting the relative position (eyQ) of the drive device based on the overall center of gravity (N2); setting the initial speed V1 and acceleration / deceleration a1 based on the current drive position (eyQ), and officially starting the walking task; during the movement, monitoring the integral of the pressure sensor fluctuation value in real time, if the integral of the pressure sensor fluctuation value exceeds a specified threshold, adjusting the speed and acceleration to: V = V1 * 0.7, a = a1 * 0.5; reaching the destination, completing the walking task. By adjusting the relative position of the drive device through the overall center of gravity, it is ensured that the drive device does not slip, and the real-time detection of the pressure sensor fluctuation value effectively ensures operating efficiency.
Owner:GUANGDONG JATEN ROBOT & AUTOMATION

Completely-ablative embedded slapper ignition tube for solid engine

The invention discloses a completely-ablative embedded slapper ignition tube for a solid engine, and belongs to the field of solid rocket engine design. The ignition tube comprises a shell, a glass sintering base, an integrated exploding foil chip, a primary HNS-IV grain, a primary grain positioning ring, a sealing aluminum foil piece, a secondary BPN grain and an insulating spacer, after a contact pin on the glass sintering base receives pulse high-voltage energy, the integrated exploding foil chip works and outputs a high-speed flying piece to impact and detonate the HNS-IV grain, detonation waves impact and ignite the BPN grain after being attenuated, and the high-speed flying piece is output; and finally, main charge of the engine is ignited. The impact-detonation-detonation fire transfer sequence is designed, the short pulse impact energy of the small-size thin flyer is fully utilized, the safety and reliability of a product are improved, meanwhile, raw materials can be completely ablated, blockage or damage to an engine jet pipe is avoided, and therefore the ballistic performance in an engine cannot be affected after the impact-detonation-detonation fire transfer sequence acts on the jet pipe.
Owner:XIAN AEROSPACE PROPULSION TECH INST

Complex sentence query method, device and medium applied to in-vehicle scenarios

The application relates to a complex sentence query method, equipment and medium applied to an in-vehicle scene. The complex sentence query method comprises the following steps: after it is determined that a complex sentence is received, a plurality of target keywords in the complex sentence are parsed; fields to which the target keywords respectively belong are queried to obtain at least one field; the query relationship between the target keywords under the same field is set as OR, and the plurality of target keywords are sequentially queried according to the priority between the at least one field to output at least one query result. By adopting the complex sentence query method, the complex sentence query in the in-vehicle scene can be guaranteed to have a result output, and the real-time requirement of the in-vehicle scene can be met.
Owner:CHONGQING JINKANG NEW ENERGY VEHICLE CO LTD