39results about How to "Avoid normal work" patented technology

The invention discloses a method for implementing intelligent management and control of a special vehicle operation process based on a virtual space. Only a laser radar and an optical camera which are deployed in a special vehicle operation site and have overlapped detection view fields are used as external sensing equipment to synchronously collect operation environment data; based on the working environment data, constructing a three-dimensional virtual space containing the semantic information of the electrified equipment, and setting a virtual electronic fence to form a security defense area; based on laser radar real-time point cloud data, point cloud clusters of different rigid parts of the special vehicle are identified through segmentation and clustering, and a theoretical three-dimensional contour is generated; extracting a two-dimensional edge of the vehicle part through semantic segmentation based on the optical camera image data, and generating a three-dimensional semantic contour; fusing the theoretical three-dimensional contour with the three-dimensional semantic contour to obtain a high-precision dynamic three-dimensional contour of the moving part of the special vehicle; and calculating the shortest distance between the high-precision dynamic three-dimensional contour and the boundary of the virtual electronic fence, and taking the shortest distance as a reference for executing graded early warning or operating intervention on a special vehicle.

Embodiments of the present application provide a clothes drying device control method, device, medium and program product. The method comprises: obtaining environment sensing data and a current speed of a compressor when a clothes drying device executes a clothes treatment program; determining a first speed of the compressor based on the environment sensing data and a preset temperature, the preset temperature being determined based on clothes to be treated in the clothes drying device; determining whether the first speed is within a resonance speed range of the clothes drying device; when the first speed is within the resonance speed range, determining a second speed according to the first speed, the current speed and the resonance speed range, and controlling the compressor to operate at the second speed. The method avoids having the compressor work at the resonance speed range, and reasonably adjusts the temperature to avoid a sharp increase or decrease in temperature.

The utility model relates to the technical field of garment processing, and discloses a garment fabric cutting device which comprises a device frame body, an unwinding roller, a fabric cutting part and a plurality of winding rollers are sequentially installed on the device frame body, and the fabric cutting part comprises a configuration frame and a plurality of cutters installed on the configuration frame; the divider comprises a mounting frame, a pressing unit, a switching unit and a dividing knife; the switching unit comprises a switching rod, a limiting rod, a tool apron, a second spring and a gasket; the installation frame comprises a base and a limiting frame installed on the base. By arranging the divider, after a roll of cloth is divided, a worker only needs to press a switching rod to enable a dividing knife to leave a dividing station, at the moment, the worker can directly start to lay a new roll of cloth, and then the switching rod is pressed again to enable the dividing knife to return to the dividing station to continue working; the configuration frame does not need to be frequently disassembled, the subsequent height adjustment work on the configuration frame every time can be omitted, a large amount of time is saved, and the operation efficiency is improved.

The application relates to an FPGA prototype verification method and system of a smart meter chip, and belongs to the field of integrated circuit testing and electric power metering. The method aims to solve the problems of ASIC design transplantation to an FPGA platform, large difference between a verification environment and a real power grid, and lack of a real-time closed-loop verification mechanism. A technical scheme efficiently transplants the design to the FPGA by optimizing ASIC front-end synthesis constraints and adopting a netlist-level IP replacement strategy; a hardware-in-the-loop system is constructed, which comprises a real power grid signal source, a separation device simulation front end, an FPGA verification board, a high-precision standard electric energy meter and a host computer. The system can generate a real power grid excitation and realize synchronous collection of prototype output and the standard meter, real-time error analysis and dynamic adjustment of parameters, thereby forming a closed-loop verification. The application significantly improves code transplantation efficiency, provides a highly consistent real power grid verification environment, and greatly improves verification iteration and defect positioning speed.

This utility model discloses a low-friction high-speed rotating motor rotor assembly structure, including a shaft and a rotor. The rotor is sleeved on the shaft, and a stator is sleeved on the rotor. A connecting ring sleeve is sleeved on the shaft, and a liquid storage cavity is formed in the connecting ring sleeve. The liquid storage cavity contains lubricating oil and a sponge sleeve. Multiple protrusions are circumferentially fixedly connected to the shaft, and multiple strip grooves are formed circumferentially on the shaft. In this utility model, the shaft rotates at high speed, driving the protrusions to rotate at high speed as well. The protrusions can squeeze the sponge sleeve, and the squeezed lubricating oil falls into the strip grooves. The lubricating oil can lubricate and cool the shaft. Some of the lubricating oil flows from the strip grooves into the vertical grooves, and then into the ring grooves, cooling and lubricating the rotor. This avoids the rotor working in a high-temperature environment for a long time, reduces frictional damage caused by high-speed rotation, and improves the service life of the rotor.

The invention relates to a combined filling mining method for a steeply inclined thin vein, which comprises the following steps: S1, arranging a stope: arranging the stope along the trend of an ore body, dividing the stope into a plurality of middle sections from top to bottom along the vertical direction of the vein, dividing ore blocks through a pedestrian ventilation raise, and reserving bottom columns at the bottoms of the ore blocks; s2, mining preparation cutting is conducted, specifically, an in-vein haulage roadway is tunneled in the direction of an ore body, and then a pedestrian ventilation raise is tunneled upwards through the in-vein haulage roadway to communicate an upper middle section air return roadway with the middle section in-vein haulage roadway; excavating a undercut roadway into the ore block from the pedestrian ventilation raises on the two sides along the upper boundary of the bottom column, and upwards excavating a one-way draw shaft as a draw shaft on one side, close to the footwall of the ore body, of the middle-section in-vein haulage roadway at the central position in the length direction of the ore block; s3, stoping, ore removal and filling are conducted, specifically, rock drilling and manual charging are conducted on the first layer from the undercut roadway, and the second layer is circularly stoped; and then filling in a filling step-by-step manner. The mining efficiency can be improved, and the labor intensity of workers can be relieved.

The invention provides an intelligent linear cyclic lithium battery charging control method, which comprises the following steps of: constructing a charging channel selection network, sequentially gating a charging channel of a single lithium battery by adopting a fixed time slice polling mechanism, and executing three-section type charging control of pre-charging, constant-current charging and constant-voltage charging in each time slice, and meanwhile, by combining a voltage sampling scheme of a shared divider resistor and a multi-protection function, accurate and balanced charging of a plurality of lithium batteries is realized. The method has the advantages that the method can be suitable for a 9V power supply scene of three lithium battery packs connected in series, a DC-DC step-up / step-down circuit does not need to be configured, ripple waves, EMI interference and power loss caused by a switching power supply are eliminated at the same time, the system architecture is simplified, the cost is reduced, the charging safety of the battery packs is improved, and the cycle life of the battery packs is prolonged.

The application discloses a motor temperature control method based on environment monitoring and belongs to the technical field of motor temperature control, which comprises the following steps: S1, multi-source data synchronous acquisition: the working temperature T1 of a motor body, the environment temperature T2 of an environment where the motor is located, the running current I of the motor and the heat dissipation state signal S representing the state of a heat dissipation system are synchronously acquired in real time, the heat dissipation state signal S is the temperature of a radiator, the flow of cooling liquid or the rotating speed of a heat dissipation fan, S2, multi-source temperature coupling analysis and feature extraction: based on the real-time data collected in step S1, coupling calculation is performed to generate an environment normalized temperature rise index and a heat balance deviation index for representing the abnormal state of the system heat, S3, fault root cause discrimination and classification: the environment normalized temperature rise index and the heat balance deviation index calculated in step S2 are used for fault root cause discrimination and classification. The application realizes the motor temperature control based on environment monitoring, realizes the transition from fuzzy perception, extensive control to accurate diagnosis and can realize intelligent intervention.

A novel hydraulic pump station for mining includes an oil tank, a frame, and a control valve assembly mounted on the oil tank. The oil tank is located on top of the frame, and an oil pump assembly is mounted on the frame directly below the oil tank. The interior of the oil tank is divided into a return oil zone and an intake oil zone by a partition. The oil inlet of the oil pump assembly is connected to the intake oil zone via an oil suction filter, and the oil outlet of the oil pump assembly is connected to the inlet of the control valve assembly via a two-stage high-pressure filter. Water coolers and spray mechanisms are installed on both the front and rear sides of the oil tank. The water inlet of the water cooler is connected to a mining static pressure water supply system, and the water outlet of the water cooler is connected to the water inlet of the spray mechanism. The oil inlet of the water cooler is connected to the return oil port of the control valve assembly, and the oil outlet of the water cooler is connected to the return oil zone via a return oil filter. This invention features a compact overall structure, meets the requirements for use in confined spaces, and offers high cooling efficiency.

The application discloses a working mode detection method and circuit of an active clamp flyback converter, a main control chip, samples a drain end voltage VDS of a main power tube QL in a current period, detects a first voltage drop time of the main power tube QL after the main power tube QL is turned off, and determines the working mode of the current period of the active clamp flyback converter by judging the sequence of the first voltage drop time and a clamp tube driving time. Furthermore, based on the working mode determination result, the dead time of the active clamp flyback converter is accurately adjusted to be suitable for the detected working mode, the problem of mismatching between the dead time and the working mode is avoided, the main power tube QL of the active clamp flyback converter can keep realizing soft switching in a full load range, the switching loss of the active clamp flyback converter is greatly reduced, and the efficiency of the converter is improved.

This invention provides a method for controlling Spartina alterniflora and promoting natural mangrove restoration based on rolling mulching and in-situ mud slurry, belonging to the field of ecological control technology. The method involves mechanically rolling Spartina alterniflora to flatten most of it and press it into the tidal flat soil. Then, a biodegradable mulch film is laid on top, and mud slurry is extracted and applied to form a mud slurry cover layer. A mangrove seed interception and planting device is then installed on the mud slurry cover layer to prevent mangrove seeds from growing naturally, thereby reducing the cost of Spartina alterniflora control and improving the efficiency of Spartina alterniflora control.

The invention provides a request processing method and device, equipment and a storage medium. The method proposed herein comprises: obtaining at least one processing request from a training unit, the at least one processing request being associated with a first batch, the processing request being used to obtain an evaluation regarding a first model; allocating a set of working nodes for the first batch, a batch processing delay of the set of working nodes satisfying a delay constraint, the batch processing delay indicating a difference between an expected completion time and a reference completion time of the first batch, the expected completion time being determined based on the set of working nodes, the reference completion time being independent of the set of working nodes; providing a plurality of processing requests in a first batch for a group of working nodes to obtain evaluation information corresponding to the plurality of processing requests; and providing the evaluation information to a training unit to train the first model. In this way, the request processing efficiency and the utilization rate of computing resources can be effectively improved.

The utility model discloses a variable-pitch transfer mechanism of a pipette tip, which comprises a bottom table, a double-belt lead screw transverse moving assembly arranged at the top end of the bottom table, an inverted U-shaped frame arranged at the moving end of the double-belt lead screw transverse moving assembly, and a Y-axis cylinder arranged on the inner wall of one side of the inverted U-shaped frame, a supporting arm is fixed to the top end of a piston rod of the Y-axis air cylinder, a bottom plate is fixed to the bottom end of the supporting arm, and a pneumatic pitch changing assembly is installed on the upper surface of the bottom plate. The distance between every two adjacent conical opening sleeves is adjusted through the pneumatic distance changing assembly so as to be suitable for suction heads with different heights, diameters or shapes, and finally the double-belt type lead screw transverse moving assembly transversely moves the suction heads and the conical opening sleeves which are stably placed till the suction heads and the conical opening sleeves move to a loading area. And the suction heads are propped into the packaging boxes with the holes one by one by a subsequent mechanical arm.

The application discloses a linear voltage stabilizing circuit based on NMOS regulating tube, comprising a bias voltage generating circuit, a voltage division feedback circuit, an oscillator circuit, a charge pump circuit and a pre-voltage stabilizing circuit, wherein the bias voltage is generated through the bias voltage generating circuit; the output voltage is divided to obtain a feedback voltage through the voltage division feedback circuit; the feedback voltage is amplified and then input to the oscillator circuit to generate an oscillation signal; the generated oscillation signal is input to the charge pump circuit; the gate voltage of the NMOS regulating tube is adjusted through the charge pump circuit, so as to obtain the output voltage; the pre-voltage stabilizing circuit widens the input voltage range, so that the linear voltage stabilizing circuit can work in a high input voltage environment; the linear voltage stabilizing circuit based on the NMOS regulating tube has the characteristics of wide input range and low voltage difference, fast transient response speed, and is fully compatible with the thin gate oxide process.

The utility model discloses a kind of for C purlin reinforcing structure, relate to purlin technical field.The purlin for roof reinforcement, including purlin and lap joint component, the inside of purlin is provided with inner lining C type steel one and inner lining C type steel two;Lap joint component is set on inner lining C type steel one and inner lining C type steel two, and lap joint component includes hexagonal mounting hole, screw rod, connecting column, limit plate and nut, and six groups of hexagonal mounting hole are set on inner lining C type steel one and inner lining C type steel two and linear distribution, and screw rod is set in the inside of hexagonal mounting hole, and the bottom of screw rod is fixedly installed with connecting column, and the bottom of connecting column is fixedly installed with limit plate.The position of inner lining C type steel is adjusted by nut rotation through the setting of inner lining C type steel one, inner lining C type steel two and lap joint component, can accurately control reinforcing effect, and the process of adjustment is simple and fast, avoids complex welding or reinforcing work, greatly reduces construction difficulty.

The utility model discloses an anti-falling mechanism for a headstock of a packing machine. The anti-falling mechanism comprises a portal frame and the headstock, the headstock is arranged on the portal frame in a vertical sliding state; the two ends of the headstock are fixedly connected with guide wheel fixing frames; chain wheels are rotationally connected to the upper and lower ends of the portal frame side columns; a rotatable anti-falling block is arranged at the upper part of the guide wheel fixing frame; the upper part of the anti-falling block and the lower part of the guide wheel fixing frame are connected with chains; when the chain is broken, the anti-falling block rotates under the action of the tension spring, and the clamping block on the anti-falling block can be clamped into the clamping plate clamping groove welded to the portal frame to limit the headstock. Meanwhile, due to the fact that the position and the angle of the anti-falling block are changed due to rotation of the anti-falling block, a flush sensor can be triggered, the emergency stop function can be triggered, the working state of the packing machine is stopped, the chain is prevented from working continuously in the disconnected state, safety of workers is guaranteed, and goods are prevented from being damaged.

The invention relates to the technical field of intelligent wearable devices, and particularly discloses an intelligent host and an intelligent wearable device. The intelligent host comprises a bottom support, a host body, a first buckling piece, a second buckling piece and an unlocking part, the bottom support is provided with a buckling structure, the host body is connected to the bottom support, and the first buckling piece and the second buckling piece are rotatably connected to the host body and located on the two sides of the host body respectively. The first buckling piece and the second buckling piece are used for being connected with the buckling structure in a buckling mode, the unlocking part is connected between the first buckling piece and the second buckling piece, when the unlocking part is pressed, the first buckling piece and the second buckling piece can be separated from the buckling structure, and the unlocking part comprises an insulating part; and the insulating part enables an open circuit to be formed between the first buckling piece and the second buckling piece. By adopting the design of the application, the open circuit is formed between the first buckling piece and the second buckling piece, so that a conductive plane is not formed, the interference to the antenna is reduced, and the radio frequency environment of the antenna is optimized.

This utility model discloses a feeding device for male and female drill pipe joints, comprising: a rotating platform, the main body of which is configured as a bearing turntable, a mounting base fixedly installed at the top of the bearing turntable, end limiting plates fixedly installed at both ends inside the mounting base, two mounting shafts symmetrically installed at the top between the two end limiting plates, and a bearing roller fixedly sleeved on the outer wall of the mounting shaft; and a lifting assembly for lifting the male and female drill pipe joints. This utility model uses a controller to uniformly control components such as the rotating motor, drive motor, telescopic cylinder, lifting cylinder, and lifting cylinder, realizing full automation of the material storage, separation, feeding, processing, and unloading process, reducing manual intervention, lowering the difficulty of manual operation, and improving production efficiency; the feeding and storage platform is set with a five-degree inclination angle and a chamfered slope, combined with a retractable feeding slide in the slide structure, so that the workpiece rolls down to the bearing roller at low speed, reducing impact.

The utility model discloses a motorcycle front magnetorheological damper and motorcycle, including working cylinder, guider assembly, piston assembly, floating piston assembly, magnetorheological fluid, outer tube support assembly, ECU control unit and sensor, guider assembly, piston assembly and floating piston assembly are located in the inside of working cylinder, and piston assembly includes built -in solenoid and damping passage, and damping passage penetrates the upper and lower end of piston assembly, and magnetorheological fluid fills the working cavity between guider assembly and floating piston assembly, and, outer tube support assembly is at least partially coated in the outside of working cylinder, and is connected with guider assembly, and ECU control unit and solenoid electric connection are used for the signal adjustment input to solenoid's current according to sensor, like this through solenoid and the combination of magnetorheological fluid, ECU control unit can real -time regulation magnetic field intensity, change the viscosity of magnetorheological fluid to dynamic control damping force.

This application discloses a perovskite / crystalline silicon tandem solar cell, belonging to the field of solar cell technology. The perovskite / crystalline silicon tandem solar cell includes a perovskite layer, a buffer layer, an intermediate interconnect layer, a crystalline silicon layer, a first metal grid electrode, and a heat-dissipating optical reflective layer. The buffer layer, comprising a thermoplastic resin, is stacked on one side of the perovskite layer. The intermediate interconnect layer is stacked on the side of the buffer layer opposite to the perovskite layer. The crystalline silicon layer is stacked on the side of the intermediate interconnect layer opposite to the buffer layer. The first metal grid electrode is stacked on the side of the crystalline silicon layer opposite to the intermediate interconnect layer. The heat-dissipating optical reflective layer is disposed on the side of the first metal grid electrode opposite to the crystalline silicon layer and is at least partially embedded in the grid of the first metal grid electrode. The heat-dissipating optical reflective layer comprises graphene and boron nitride. This application can improve the photoelectric output capability, thermal stability, and long-term operational reliability of the perovskite / crystalline silicon tandem solar cell.

The utility model discloses a tea bar machine, including cabinet, water storage container and water suction pipe, and the end of water suction pipe is equipped with sterilization device, and the sterilization device includes water source trigger subassembly, sterilization lamp and the connecting shell that links with water suction pipe, and the sterilization lamp is installed between connecting shell and water source trigger subassembly to contact with the liquid in water storage container, when water source trigger subassembly is triggered by liquid, sterilization lamp opens to carry out sterilization to the liquid in water storage container. The utility model discloses through setting up the sterilization device with sterilization lamp in the end of water suction pipe, and setting up the water source trigger subassembly that can detect liquid on the sterilization device, so that water source trigger subassembly can realize the detection of liquid through being triggered by liquid, and then opens sterilization lamp when detecting liquid, to carry out sterilization to the liquid in water storage container, when the liquid in water storage container is exhausted, water source trigger subassembly cannot be triggered, avoids sterilization lamp to continue working in the idle water storage container, and greatly saves electric power resources.

The invention discloses a transmission rate control method and device, electronic equipment and a readable storage medium, and belongs to the technical field of electronic equipment. The transmission rate control method is used for the storage system comprising a host and at least two storage devices, a transmission link is arranged between the host and each storage device, the transmission link comprises a TX transmission link and an RX transmission link, and the transmission rate control method comprises the following steps: acquiring multi-scale information of the electronic device; the multi-scale information comprises at least one of the following items: the read-write data volume of each transmission link, the read-write load value of the storage system, and the residual electric quantity and the running state of the electronic equipment; controlling a rate gear used by each transmission link according to the multi-scale information; wherein multi-stage rate gears of a transmission link between the host and each storage device are pre-configured, the multi-stage rate gears comprise at least two first-class rate gears and at least two second-class rate gears, and the transmission rate of the first-class rate gears is greater than that of the second-class rate gears.

The utility model belongs to the technical field of structural health monitoring, and particularly relates to a distributed multi-parameter structural health monitoring system, which comprises a sensor network sensing module, a differential charge amplifier module, a data processing, analyzing and storing module and an early warning module, the sensor network sensing module is connected with the differential charge amplifier module, the differential charge amplifier module is connected with the data processing, analysis and storage module, the data processing, analysis and storage module is connected with the early warning module, and the sensor network sensing module collects multi-parameter data in real time. The differential charge amplifier module is used for conditioning and calibrating an output signal of the sensor network module; the data processing, analysis and storage module processes, classifies and stores the signals, and the early warning module triggers early warning. The system can realize comprehensive, real-time and accurate structural health monitoring for various structures in different industries, such as composite material structures of aircrafts, high-speed rail tracks and bridges, coal mine facilities, mechanical parts, automobile key parts and the like.

This utility model discloses a liquid filling system, a power unit, and a vehicle, relating to the field of automation control technology. The liquid filling system includes a storage tank, a delivery pipeline, a pressure detection element, an electromagnetic pump, and a controller. The delivery pipeline is connected to the storage tank; the pressure detection element is located in the delivery pipeline to detect the pressure in the pipeline; the electromagnetic pump is connected to the delivery pipeline and the storage tank to deliver liquid from the storage tank to the delivery pipeline; the controller is electrically connected to the electromagnetic pump and the pressure detection element. The technical solution provided by this utility model improves the service life of the liquid filling system.

This invention belongs to the technical field of temperature control methods for fiber laser chillers, and particularly relates to a method for controlling the low-temperature outlet water temperature of a chiller based on a bypass valve and a compressor misalignment switch. The method includes the following steps: determining the preset temperature, temperature control accuracy, and accuracy coefficient; closing the bypass valve; starting the chiller and compressor normally; continuously monitoring the actual low-temperature outlet water temperature after the chiller starts running; and combining control of the compressor and bypass valve according to different states to maintain the low-temperature outlet water temperature within a reasonable range. This application, based on the changes in the low-temperature outlet water temperature of the chiller, utilizes a combination of compressor start control and bypass valve on / off control to achieve rapid balance of high and low pressure differences, creating conditions for the next compressor start-up more efficiently and accurately, reducing the starting current, and simultaneously improving the temperature control accuracy of the chiller water. This avoids the problem of frequent laser alarms and malfunctions due to excessive water temperature fluctuations in complex environments.

This utility model discloses a dynamic speckle detection system embedded inside a laser projector, relating to the field of laser projector technology. It includes: a laser projection light source, a beam combining and homogenizing module, a speckle suppression module, an image modulation module, a speckle measurement module, and a speckle suppression drive module. The speckle suppression module includes a vibrating device, and the speckle measurement module includes an image acquisition unit and a control unit. The optical axis of the speckle measurement module points towards the projection screen. The output of its image acquisition unit is connected to the control unit, and the output of the control unit is connected to the speckle suppression drive module. The output of the speckle suppression drive module drives the vibrating device. This utility model embeds the speckle measurement system inside the laser projector, allowing arbitrary modulation of the speckle suppression module's operating state according to the actual projection pattern. This avoids the speckle suppression module operating at maximum performance for extended periods, reducing laser power consumption and heat dissipation burden, and significantly improving the lifespan of the speckle suppression module.

The utility model relates to a temperature control heating circuit, which comprises a first voltage division module, a second voltage division module, a temperature sensor, a first comparator, a second comparator, a heating module and an MOS (Metal Oxide Semiconductor) tube, the temperature control heating circuit is ingenious in design, when the environment temperature is lower than a first temperature preset value, the first comparator can output a high-level signal, the MOS tube controls the heating module to start heating, a CPU or the circuit is prevented from being damaged due to too low temperature, and the purpose that the heating module is started at low temperature to heat the CPU and related circuits can be easily achieved; similarly, when the temperature is higher than a second temperature preset value, the second comparator outputs a low-level signal, and the MOS tube controls the heating module to stop heating, so that overheating damage is avoided, heating lags behind 20 DEG C, and heating is automatically stopped after circuits such as a CPU (Central Processing Unit) and the like work normally; according to the utility model, the product can work normally in a severe environment, the stability of the product is ensured, an industrial MCU and a flash chip are omitted, the material cost of the product is reduced, and the market competitiveness is improved.

The application provides a control method and a power supply device. The power supply device comprises a shell, a dehumidification unit for dehumidification, a radiator, a printed circuit board assembly (PCBA) and a battery cell unit. The dehumidification unit, the radiator, the PCBA and the battery cell unit are arranged in the shell. The PCBA is located between the battery cell unit and the radiator, the PCBA is electrically connected with the battery cell unit, and the radiator is close to the side wall of the shell. The control method is applied to the power supply device. The first temperature of the radiator, the second temperature of the PCBA and the third temperature of the battery cell unit are obtained. When the first temperature, the second temperature and the third temperature meet the preset condition, the dehumidification unit is controlled to work, so as to inhibit the formation of condensation on the surface of the battery cell unit and / or the surface of the PCBA, and reduce the condensation risk in the power supply device.

The invention discloses an aluminum nitride heater designed based on a slurry synergistic heating structure and a slurry preparation method of the aluminum nitride heater, and relates to the technical field of aluminum nitride heaters, the heater comprises a base body, a kovar electrode, a heating circuit and a protrusion structure, the heating circuit and the kovar electrode are brazed through the base body through soldering paste, and the protrusion structure is arranged on the base body. A protruding structure is arranged on the side wall of the base body, the kovar electrode penetrates through the protruding structure, and a pin circuit is arranged in the protruding structure. Through the collaborative design of the low-square-resistance slurry and the protruding structures, the problem that a traditional aluminum nitride heater loses efficacy at a high temperature due to the limitation of the melting point of silver-copper-titanium brazing solder is effectively solved, and compared with the limitation that the traditional heater can only stably work within 450 DEG C for a long time, when the electrode temperature of the heater is 450 DEG C, the electrode temperature of the aluminum nitride heater is 450 DEG C; the heating temperature of the working face can be increased to 550 DEG C, long-term stable work at the temperature of 550 DEG C or above is successfully achieved, the application scene of the heater is greatly expanded, and the use requirement under the high-temperature working condition is met.

The application discloses a five-fingered dexterous hand grabbing information generation method based on a self-expanding database, and belongs to the technical field of robot five-fingered dexterous hand grabbing. The method comprises the following steps: constructing an automatic gesture recognition model, an automatic region division model and a grabbing posture recognition model; training the automatic gesture recognition model; training the automatic region division model according to a grabbing task to be performed by a five-fingered dexterous hand and a grabbed object; based on the three models, constructing a grabbing information database and performing self-expansion; and based on the grabbing information database, entering an online state to find grabbing information. Through the application, the three models can quickly recognize grabbing gestures, grabbing regions and grabbing postures in a picture data set, and store the same in a grabbing information database in a complete operation instruction unit; when facing a new grabbing task and a grabbed object, grabbing information can be efficiently and accurately found, and a large amount of picture labeling and training work is avoided.