30results about How to "Avoid Accuracy Impact" patented technology

The invention discloses a camera protection device with an air knife, which relates to the technical field of industrial camera protection devices and comprises a shell assembly arranged outside a camera. The shell assembly is of a frame-shaped structure, and the camera is connected with the inner wall of the frame-shaped structure; the frame-shaped structure comprises a top plate, and a window for the camera to shoot is formed in the top plate; an annular air knife assembly is arranged around the window, the annular air knife assembly is arranged between the top plate and the camera, and the annular air knife assembly can achieve annular air knife air supply. The camera protection device provided by the invention is more compact in structure, and meets the carrying requirements of small-space and small-load motion structures, especially automatic loading and unloading carrying manipulators and other motion mechanisms; a uniform and stable isolation layer can be provided, water, oil mist, dust and other foreign matters can be isolated without dead angles, and the camera identification precision is not influenced by the foreign matters.

The utility model belongs to the technical field of hot melt glue machines, and discloses an adjustable hot melt glue machine which comprises a base, one side of the top end of the base is fixedly connected with a pair of supports, the top ends of the supports are fixedly connected with an equipment frame, the top end of the equipment frame is provided with an open groove, the open groove is connected with a moving block in a sliding mode, and the moving block is fixedly connected with the base. An equipment box is fixedly connected to the top end of the moving block, first sliding grooves are formed in the two sides, close to the equipment frame, of the equipment box correspondingly, and the pair of first sliding grooves are slidably connected with first sliding blocks correspondingly. According to the device, through cooperative use of an electric push rod, a through groove and a glue scraping piece, the position of a nozzle of a glue spraying head after glue injection can be automatically cleaned, the situation that the nozzle of the glue spraying head is blocked by solidified residual glue, and the glue injection precision is affected is avoided, through arrangement of a storage box, the residual glue scraped by the glue scraping piece can be collected, and the device is convenient to use. The hot melt glue is prevented from falling on the placing table to influence normal work, and the working efficiency of the hot melt glue machine is greatly improved.

The invention discloses a fluff cleaning reminding method and a washing and drying integrated machine adopting the fluff cleaning reminding method, and the fluff cleaning reminding method is characterized by comprising the following steps: 1, setting a concentration initial value x0; 2, a door lock is locked and a set program is executed; 3, judging whether a dehydration program exists or not, and if yes, step 7; if not, detecting an actual concentration value x; 4, judging whether the difference value reaches a first threshold value a or not, and executing step 5; if not, step 7; 5, judging whether a washing procedure exists, if so, reminding to clean fluff; if not, step 6; 6, whether the difference value reaches a second threshold value b is judged, if yes, fluff cleaning is reminded; if not, step 7; 7, judging whether the execution program ends or not, if so, ending the program; if not, returning to the step 2. The detection device has the advantages that the blocking degree of the fluff intercepting net is indirectly detected by detecting the fluff concentration (namely the fluff concentration penetrating through the fluff intercepting net) change of the periphery of the fluff intercepting net, the detection device can be installed in an air duct, the influence of fluff collection in the fluff intercepting net on the precision of the detection device is avoided, and installation is more convenient and simpler.

The utility model discloses a positioning device for an automatic pipe cutting machine, relates to the technical field of pipe cutting equipment, and provides the following scheme that the positioning device comprises a workbench, a fixed base is arranged above the workbench, a fixing mechanism is arranged on the fixed base and used for fixedly placing pipes, a movable base is arranged on the workbench, and the movable base is used for fixing the pipes. The fixed arc plate is arranged above the working table, is driven by the motor and is in sliding fit with the working table, and is used for cutting and positioning pipes, and a positioning mechanism is arranged on the movable base and is used for positioning a main body of a pipe structure. And in cooperation with a constraint arc plate which is driven by an air cylinder arranged on the movable base and internally provided with an auxiliary wheel, installation, placement and use of the pipe are facilitated, fixed constraint in the cutting process is facilitated, the precision influence caused by structure disengagement and shaking is avoided, and the using effect is remarkably improved.

The present application relates to a power transmission status monitoring method, system and related equipment. The power transmission status monitoring method includes: obtaining a first characteristic parameter state of a power transmission device; performing an item set search on the first characteristic parameter to obtain a plurality of first frequent item sets; obtaining a feature association rule based on a plurality of the first frequent item sets; obtaining a second frequent item set; obtaining an abnormal cause association rule based on the second frequent item set and the abnormal cause of the power transmission device; obtaining abnormal situation information related to the power transmission device based on the abnormal cause association rule and the feature association rule. The power transmission status monitoring method has high monitoring efficiency and high monitoring accuracy.

According to the service scoring model evaluation method and device, the storage medium and the computer equipment provided by the invention, during model evaluation, the service dialogue set is firstly determined, the to-be-evaluated service scoring model and the plurality of verification scoring models are obtained, and the service dialogue set is respectively input into the service scoring model and each verification scoring model; obtaining a first scoring sequence output by the service scoring model and a second scoring sequence output by each verification scoring model; then, the Spearman similarity between the first scoring list and each second scoring sequence is determined, the scoring precision of the service scoring model is determined based on each Spearman similarity, then an evaluation result is generated, and the Spearman similarity pays attention to the relative position relation between data values instead of actual data values, so that the evaluation accuracy of the service scoring model is improved. Therefore, it can be avoided that the evaluation of the service scoring model is affected by the difference caused by the fact that the verification scoring model is not matched with the service scene due to different training conditions, and the evaluation precision of the service scoring model is improved.

The invention provides a boiler tail flue gas CO concentration online detection device which comprises a sampling pipeline, an anti-blocking and anti-coking sampler is arranged on the sampling pipeline, a detection probe is arranged in the anti-blocking and anti-coking sampler, the anti-blocking and anti-coking sampler and the detection probe are connected with a control cabinet, and the control cabinet is in wireless connection with intelligent terminal equipment; by arranging the anti-blocking and anti-coking sampler, the influence of flue gas on the precision of the detection probe can be effectively avoided, the boiler flue gas enters the sampling pipeline to be collected by the detection probe and then is uploaded to the control cabinet to be analyzed and processed in real time, so that the CO concentration data of the flue gas at the tail part of the boiler is effectively obtained; and the operation of the boiler can be efficiently controlled through the CO concentration of the tail flue gas of the boiler, so that the boiler efficiency is improved.

The invention provides a navigation anti-interference method based on multi-inertial navigation information comprehensive decision, which comprises the following steps of: based on more than three sets of configured high-precision inertial navigation systems, firstly obtaining position errors of two sets of gyro inertial navigation systems, then obtaining position error increments of the two sets of gyro inertial navigation systems and Beidou, and finally obtaining the position error increments of the two sets of gyro inertial navigation systems and the Beidou; comparing the two position error increments with the position errors of the two sets of gyro inertial navigation systems, and judging whether the position information of the Beidou is reliable or not; if the judgment result cannot be obtained, further judging whether interference occurs or not according to the relationship between the third set of gyro inertial navigation system and the position error increment of the Beidou, so that the method can be used for detecting interference information possibly existing in the Beidou navigation system, and the system can take isolation measures in time conveniently; interference information is prevented from entering the system in a feedback correction mode to influence the precision of the navigation system.

The atomization device comprises an air adjusting assembly, a sealing part and a first shell, the air adjusting assembly comprises a fixed part and a movable part, the fixed part is provided with an air inlet hole, the movable part is provided with an air adjusting hole, and the movable part is slidably connected to the fixed part; the sealing piece is connected to the side, away from the movable piece, of the fixed piece and comprises a first sealing part, the first shell comprises a mounting groove partially containing the movable piece, the fixed piece and at least partially containing the sealing piece, and the first sealing part is in interference fit with the side wall of the mounting groove. When the atomization device is actually used, external air enters from the air inlet hole and does not enter from an unexpected position, namely a gap between the mounting groove and the air adjusting assembly, so that it can be guaranteed that the actual air inlet amount is controllable, and the adjusting precision of the air inlet amount is prevented from being affected.

This invention relates to the field of computational electromagnetics, specifically to an antenna layout modeling and analysis method based on coupled rays and current basis. The method includes: defining electrically small and electrically large regions of the electrically large carrier antenna layout target and generating mesh data; assembling the system matrix within the electrically small regions; accurately aggregating all illuminated areas within the electrically large regions using backward ray tracing technology; establishing a cyclic iterative mode for the electrically small and electrically large outer surface currents; obtaining the overall stable current distribution on the outer surface based on the residual convergence results of the currents in the electrically small regions; and finally solving for the antenna layout performance characteristics affected by the coupled electrically large carrier currents. This invention effectively improves the accuracy and efficiency problems of the traditional integral-ray hybrid method, and enhances the design efficiency of electrically large carrier antenna layouts.

The invention discloses a dynamic continuous blood pressure monitoring system and method based on a four-element electric network model. The dynamic continuous blood pressure monitoring system comprises a signal receiving and transmitting module, a data processing module, a cardiac impedance signal collecting module, an electrocardiosignal collecting module and a pulse wave signal collecting module. The cardiac impedance signal acquisition module, the electrocardiosignal acquisition module and the pulse wave signal acquisition module are respectively connected with a monitored object and the signal receiving and transmitting module; and the data processing module is connected with the signal receiving and transmitting module. When the first cardiac impedance signal, the first electrocardiosignal and the first pulse wave signal are received synchronously, the influence of the time synchronization problem on the precision in the blood pressure monitoring process is avoided, various physiological signals are obtained through collection, namely key parameters needed by the dynamic continuous blood pressure monitoring system are determined according to dynamic values, and the accuracy of the blood pressure monitoring system is improved. The accuracy of parameters needed when the blood pressure is predicted based on the Windkessel model is improved, and the accuracy and reliability of blood pressure monitoring are improved.

The present invention discloses a punching machine for automobile parts processing, and relates to the technical field of automobile parts processing. The punching machine for automobile parts processing comprises a support frame, wherein the outer wall of the support frame is movably connected with a moving component, the top of the support frame is fixedly connected with a clamping component, the bottom of the moving component is slidably connected with a drilling slider, the bottom of the drilling slider is fixedly connected with a hole washing mechanism, the top of the support frame is located at the bottom of the clamping component and is fixedly connected with a collecting mechanism, and the bottom of the collecting mechanism is fixedly connected with a filtering mechanism. The punching machine for automobile parts processing absorbs the debris generated by punching through a collecting mechanism to prevent the debris generated by punching from splashing, filters and separates the cutting fluid mixed with the debris through a filtering mechanism, and sends the filtered cutting fluid back to the flow barrel to improve the utilization rate of the cutting fluid, and discharges the cutting fluid through a flushing pipe through the hole washing mechanism to flush out the debris in the hole.

The utility model provides a display panel film pasting device which comprises a processing table, a film pasting device fixedly connected to the top of the processing table, and an adsorption placing device arranged at the top of the processing table, the film pasting device comprises a connecting frame, a sliding seat, a sliding seat, a screw hole, a connecting rectangular plate, a wind power transmission frame, a connecting thin rod, a placing hollow box and a fan barrel, the connecting frame is fixedly connected to the top of the processing table, the sliding seat is fixedly connected to the top of the connecting frame, and the sliding seat is slidably connected to the surface of the sliding seat; belongs to the technical field of display panel film pasting. According to the film pasting machine, the film pasting device is arranged, downward wind power can be generated by starting the upper draught fan barrel to help the film to be adsorbed and attached to the lower screen, the wind power is similar to downward pressure to help the film to be pasted, film pasting processing of five sets of display panels can be completed, damage caused by the fact that a pressure device is adopted in the pasting process is avoided, and applicability is high.

The utility model relates to the technical field of stamping dies, and discloses a metal part high-precision side stamping die which comprises a lower die base, two sets of supporting tables are fixedly connected to the top face of the lower die base, a sliding plate is slidably connected into the supporting tables, and four sets of mounting assemblies are inserted into the top face of the sliding plate. And the surface of the mounting assembly is in threaded connection with a side pressing plate. According to the high-precision side punching die for the metal part, through the arrangement of the negative pressure assembly, during side pressing, the upper die base moves downwards to drive the side punching block to extrude the slope face of the side pressing plate, so that the side punching column punches the side face of a product to form a punched hole, side-pressed punching waste is extruded into a collecting base, and then a negative pressure pump is started to suck away the waste through a connecting pipe; and meanwhile, negative pressure generated by the negative pressure pump can absorb waste residues generated by stamping, so that the effect of cleaning the stamping holes is achieved, and the situation that the stamping holes are blocked and the waste residues adhere to the interior to affect the punching precision is prevented.

A high-precision truss manipulator, comprising a Y-axis support, a Y-axis sliding seat arranged on the Y-axis support, a Z-axis support arranged on the Y-axis sliding seat, the Z-axis support being perpendicular to the Y-axis support, a Z-axis sliding seat arranged on the Z-axis support, symmetrical Y-axis guide rails being arranged on the upper and lower sides of the front side wall of the Y-axis support, Y-axis sliding blocks being arranged on the upper and lower sides of the rear side wall of the Y-axis sliding seat and matching the Y-axis guide rails, symmetrical Z-axis guide rails being arranged on the left and right sides of the front side wall of the Z-axis support, Z-axis sliding blocks being arranged on the left and right sides of the rear side wall of the Z-axis sliding seat and matching the Z-axis guide rails, an adjusting shaft seat being arranged on the front side wall of the Z-axis sliding seat and matching the Z-axis sliding seat, and an adjusting shaft being arranged on the adjusting shaft seat and matching the adjusting shaft seat. The high-precision truss manipulator can ensure the stability and precision of the Y-axis sliding seat and the Z-axis sliding seat during movement, and can effectively avoid noise.

The utility model provides simple installation type ultra-wide and ultra-high detection equipment, which comprises a shell, and further comprises a range radar and a communication assembly which are respectively arranged on the inner side of the shell, the range radar is arranged towards a road surface, the communication assembly is electrically connected with the range radar, and the top side of the shell is provided with an installation hole. The shell is connected with the bottom side of the cross beam through screws penetrating into the mounting holes, a mounting plate is arranged on the side portion of the shell, the two ends of the mounting plate are connected with the shell, a plurality of hoops are arranged between the mounting plate and the shell in a penetrating mode, the shell is connected with the outer side of the supporting column through the hoops, side plates are arranged on the two sides of the shell respectively, and protection plates are arranged on the outer sides of the side plates. The protection plates are connected with the shell, a protection cover is arranged between the two protection plates, the bottom side of the protection cover is in an arc shape, and the protection cover is provided with a through hole allowing transmitting and receiving signals of the ranging radar to pass through. The simple installation type ultra-wide and ultra-high detection equipment provided by the utility model can be installed in various installation modes, is simple and rapid to install, and is more convenient to maintain and adjust.

This utility model relates to the field of high-precision calipers technology and discloses an automatic zeroing and positioning mechanism for high-precision calipers. It includes a worktable with multiple placement plates on top. The bottom of each placement plate is connected to the top of the worktable via a support rod. A fixing mechanism for limiting the caliper's position is located on the top of each placement plate. A movable plate is located above the placement plates, and a slide rail groove is located at the bottom of the movable plate. A first electric slide rail and a second electric slide rail are installed opposite each other inside the slide rail groove. The first and second electric slide rails are respectively connected to a first clamping plate and a second clamping plate via sliders. The top of the movable plate is connected to a transverse electric slide rail via a slider. An image recognition device is installed on the movable plate on one side of the slide rail groove. With this structure, the caliper can be automatically calibrated without manual operation, preventing changes in personnel from affecting the calibration accuracy and effectively improving the calibration quality of the product.

The invention relates to the technical field of game guns, and particularly discloses an infrared focusing gun for shooting games, which comprises a gun barrel shell, and a first opening is formed in the gun barrel shell; the switching shell is arranged below the gun barrel shell; the switching lifting mechanism comprises a limiting plate, a first spring, a first rod piece and three same switching lifting assemblies; the switching lifting assembly comprises a fixing sleeve, a button, a connecting rod, a second spring, a third spring, a limiting block, a limiting push rod, a fixing sliding groove and an arc-shaped moving sliding block. The button drives the limiting push rod to drive the arc-shaped moving sliding block to be lifted. The lens module comprises a rifle lens, a shot lens and a sniper lens, and the lens module is connected with the three arc-shaped movable sliding blocks; the cleaning mechanism is connected with the arc-shaped moving sliding block; the defects that in the prior art, a game shooting gun is single in shooting mode, the lens is difficult to clean after being polluted, and the user experience is poor are overcome.

The application discloses a patch device and a control method thereof, which comprises a feeding module, a transfer module, a patch platform, a material taking module, a patch module and a control system. The transfer module comprises a transfer platform, a correction camera and a side-standing rotating mechanism. The transfer platform is a micro fast-moving platform. The side-standing rotating mechanism is used for rotating the horizontally placed material to a side-standing state. The material taking module adopts a single-bond double-arm structure and is used for picking the material from the feeding module and placing the material on the transfer module. The patch module also adopts a single-bond double-arm structure and is used for picking the material from the transfer module and placing the material on the patch platform. Through the separated three-module cooperative architecture of material taking, transfer correction and patching, the long-span design of the single-bond double-arm structure and the visual guidance compensation mechanism, and the innovative design of the side-standing rotating mechanism, the three-dimensional patching of the planar material can be realized, and the high-precision and high-speed patching of the 600mm*600mm large-size panel-level packaging is realized, and the UPH can reach more than 45000 pieces / hour.

This utility model discloses a high-precision and low-cost analog signal isolation and conversion circuit, comprising: a resistor voltage divider circuit, a voltage follower circuit, a signal transmission modulation circuit, a first transformer, a signal coupling demodulation circuit, a signal output circuit, a Schmitt oscillator circuit, a DC / AC conversion circuit, and a second transformer; the input terminal of the resistor voltage divider circuit is connected to the signal input terminal, the output terminal of the resistor voltage divider circuit is electrically connected to the input terminal of the voltage follower circuit, the output terminal of the voltage follower circuit is electrically connected to the input terminal of the signal transmission modulation circuit, the output terminal of the signal transmission modulation circuit is electrically connected to the primary winding terminal of the first transformer, the secondary winding terminal of the first transformer is electrically connected to the input terminal of the signal coupling demodulation circuit, the output terminal of the signal coupling demodulation circuit is electrically connected to the input terminal of the signal output circuit, and the output terminal of the signal output circuit is connected to the signal output terminal.

The utility model discloses an air conditioner fin cutting deflection fast adjusting structure which comprises an upper tool apron and a lower tool apron, the upper tool apron is connected with an upper deflection adjusting device, and the lower tool apron is connected with a lower deflection adjusting device. The upper deflection adjusting device comprises a material pressing block fixing plate and a group of upper material pressing blocks arranged on the material pressing block fixing plate side by side, an upper pressing plate is fixedly arranged on the material pressing block fixing plate, the upper pressing plate is in threaded connection with an upper adjusting screw rod used for adjusting the height of the upper pressing plate, a rotating knob is arranged on the upper adjusting screw rod, and the rotating knob is in threaded connection with the upper pressing plate. A digital display device used for reading the number of rotation turns is connected to the rotary knob, and the lower end of the upper adjusting screw rod is pressed on the upper tool apron. A locking device used for locking the adjusting bolt is further arranged. The height of the upper pressing block and the height of the lower supporting block can be rapidly and accurately adjusted, so that fin deflection control is achieved, horizontal output of fins is guaranteed, and the fin deflection adjusting device can be widely applied to the technical field of fin machining.

This invention relates to the field of permanent magnet synchronous motor vector control technology, specifically to a rapid calibration method for permanent magnet synchronous motors in new energy vehicles. It includes a calibration table for the maximum torque-to-current ratio; a calibration table for the motor flux linkage; a calibration table for the motor inductance; and obtaining the target torque T. req And by consulting the calibrated lookup tables, the required d-axis current i to be output is obtained. dref and q-axis requested current i qref This method does not require the motor to operate at high speeds, reducing risks and minimizing the need for high-speed testing benches. It also offers high calibration efficiency and high control precision.

The invention provides a multifunctional tool and a robot with the multifunctional tool. The multifunctional tool comprises a main body part and a drilling tool, and the drilling tool is movably installed on the main body part; the air blowing piece is mounted on the main body part, and at least part of an air blowing part of the air blowing piece faces a drill bit of the drilling tool; the air suction part is installed on the main body part, at least part of an air suction part of the air suction part faces a drill bit of the drilling tool, and the air suction part of the air suction part and an air blowing part of the air blowing part are located on the two sides of the drill bit of the drilling tool respectively; and the chip collecting container is installed on the main body part, the chip collecting container is provided with a chip collecting groove, and an outlet of the air suction part is communicated with the chip collecting groove so that chips sucked by the air suction part can enter the chip collecting groove. According to the technical scheme provided by the embodiment of the invention, the technical problem that in the prior art, metal filings generated by drilling of a robot end tool are inconvenient to effectively collect can be solved.

The present invention discloses a chamfering tool for removing burrs from the tooth end of a pinion gear housing of an RV reducer, comprising a tooling bottom plate, a positioning pin and a spring slider device, wherein two positioning pins contact the outer circle of the pinion gear housing for positioning the center of the circle, and the spring slider device is located in the inner circle of the pinion gear housing, and the spring slider device is provided with a spring and a telescopic head, and the end of the telescopic head is semicircular, and the diameter is larger than the grinding diameter of the pinion gear housing, and the end of the telescopic head contacts the tooth top chamfer of two adjacent inner teeth of the pinion gear housing, and is used to cooperate with the two positioning pins to fix the pinion gear housing. The present invention does not contact the tooth surface when positioning and fixing the pinion gear housing, effectively avoiding scratches on the tooth surface, improving processing quality, and ensuring processing accuracy, and can be applied to pinion gear housings of different specifications, is easy to operate, and improves production efficiency.

The utility model discloses a new energy battery pole forging and pressing device facilitating pole fixing, which comprises a forging press body, a die is arranged on a working table of the forging press body in a lap joint mode, a die groove is formed in the top of the die, and a mounting assembly is arranged between the die and the working table of the forging press body. Connecting screw holes are formed in the periphery of the mold, and sliding round holes are formed in the connecting screw holes in a penetrating mode. When the battery pole material is placed in the mold groove, the spring exerts rebound force on the mounting plate, so that the mounting plate pushes the fixed ball to pressurize and fix the battery pole material, the battery pole material is fixed in the mold groove, and the situation that the battery pole material is placed unevenly, so that the battery pole material is placed wrongly is avoided; therefore, the problem that the precision of the forged and formed battery pole is affected due to errors in placement of the battery pole material is avoided, and the battery pole is forged and pressed more conveniently.

The utility model discloses an ultrasonic bone depth measuring instrument, which belongs to the technical field of medical appliances and comprises an outer tube, a probe is arranged at one end of the outer tube in a penetrating manner, the probe is in sliding fit with the outer tube, one end of the probe positioned in the outer tube is fixedly connected with a bearing piece, the bearing piece is in sliding fit with the outer tube, and one end of the outer tube is connected with a mounting frame. An ultrasonic detection assembly is fixedly connected to the mounting frame and comprises an ultrasonic transmitting head, an ultrasonic receiving head and a processor, the detection end of the ultrasonic transmitting head and the detection end of the ultrasonic receiving head both face the outer pipe, and the ultrasonic transmitting head and the ultrasonic receiving head both are electrically connected with the processor, so that the drilling depth can be conveniently measured; and the accuracy is improved while the efficiency is improved.

The present invention relates to the field of medical infusion pumps, and discloses a high-precision medical infusion pump, including an infusion pump box, a cover plate rotatably mounted on the infusion pump box, a peristaltic infusion assembly installed in the infusion pump box, the peristaltic infusion assembly including a mounting frame fixed in the infusion pump box, a transmission shaft rotatably mounted on the upper and lower side walls of the mounting frame, the end of the transmission shaft rotatably mounted with the bottom of the infusion pump box, a plurality of cams fixedly mounted on the outer surface of the transmission shaft, a driven gear fixedly mounted on the outer surface of the end of the transmission shaft, and a liquid pump installed in the infusion pump box. Compared with the prior art, the present application has the advantages of high infusion accuracy, good protection effect on the infusion pipeline, controllable infusion temperature and heat preservation, etc., and solves a series of problems such as the inability to ensure the protection of the infusion tube itself and the influence of low temperature on the infusion accuracy.

The present invention discloses a power point access control method and system for power distribution terminals, wherein the method comprises the following steps: obtaining a power supply side voltage signal and a system side voltage signal; calculating the power supply side voltage parameter and the system side voltage parameter respectively according to the obtained power supply side voltage signal and the system side voltage signal; determining a trigger signal according to a preset judgment rule: wherein, when the trigger signal is a power supply access instruction signal, the power point is connected to the power grid system; otherwise, according to the obtained power supply side voltage signal and the system side voltage signal and the preset prediction time, the predicted voltage parameters of the power supply side and the system side are calculated, and according to the preset prediction rule, the size of the predicted voltage parameter is judged to determine the trigger signal. The present invention can reduce the impact on the power grid system when the power point is connected, and at the same time avoid damage to the power electronic devices of the new energy power generation equipment.

The utility model provides a wear -resisting aluminium profile with anti -oxidation coating relates to aluminium profile technical field, include: base layer, the inside of base layer is equipped with edge T type groove, the outer surface wall of base layer is provided with sand layer, the outer surface wall of sand layer is provided with transition layer. In the utility model, through setting up anti -oxidation wear -resisting coating and function layer, the wear resistance and corrosion resistance of aluminium profile surface have been enhanced, in the long -term use process, when the surface appears tiny scratch, depression, can through the material performance of self to tiny scratch, depression automatic repair, reduce the maintenance cost of this aluminium profile when using, possess continuous protection performance, avoid the influence of abrasion to equipment precision in use, the setting of anti -oxidation wear -resisting coating improves the adaptability and corrosion resistance of this aluminium profile to environment, avoids the problem that protection is limited when using in coastal area.

The present invention provides a shunt online adjustment workbench, including: a platform for support; a first linear module arranged on the platform; a cutting device arranged at one end of the first linear module, the cutting device is used to cut the shunt and adjust the resistance value of the shunt; a clamp arranged on the guide rail of the first linear module, the clamp is used to clamp the shunt, the clamp can move along the guide rail direction of the first linear module, drive the shunt to move along the guide rail direction of the first linear module to the cutting device, and realize the cutting of the shunt by the cutting device; a measuring component is used to measure the current and the voltage drop at both ends of the shunt before and during the cutting process. The present invention adjusts the resistance value of the shunt by cutting with the cutting device, and can measure the current and the voltage drop at both ends of the shunt during the cutting process by the measuring component, can realize synchronous calibration and calibration, and is suitable for the production of high-precision current sensors.