68results about How to "Omit cost" patented technology

The invention relates to a frequency converter input / output reverse connection detection protection method and a frequency converter input / output reverse connection detection protection device. The method comprises the following steps of: 1, detecting the output current of a frequency converter by using an output current detection circuit during initial electrification; 2, comparing an output current value detected in the step 1 with a reference current value by using a first comparison module of a central processing unit (CPU); 3, blocking a driving circuit of the frequency converter by using a first control module of the CPU; 4, detecting the direct-current bus voltage of the frequency converter; 5, judging whether the direct-current bus voltage detected in the step 4 is greater than a current limiting switch switch-on threshold value of a charging current limiting circuit or not by using a second comparison module of the CPU; 6, charging a high-voltage electrolytic capacitor, and continuously limiting charging current by using the charging current limiting circuit simultaneously; and 7, outputting a current limiting switch action signal by using a second control module of the CPU. By the method and the device, the technical problem that an inversion unit power device can be damaged by extremely high charging current generated during the input / output reverse connection of the frequency converter is solved.

The invention relates to a method used for tracking the rotating speed of an electric motor through a frequency converter. The method comprises the following steps: firstly, the frequency converter is controlled to output currents with the set frequency, and the amplitude of the output current is fixed; secondly, according to the output frequency of the frequency converter, the voltage value of the V / F curve of the electric motor is calculated; thirdly, whether the output voltage of the frequency converter is larger than or equal to the voltage value of the V / F curve of the electric motor is judged, if yes, the step four is carried out, and if no, the step five is carried out; fourthly, the output voltage and the output frequency of the frequency converter are maintained to be unchanged, and the search is finished; and fifthly, the set frequency is changed, and the step one is executed. The invention also provides a corresponding device. The invention cuts the cost of a rotating speed tracking circuit out, improves the reliability of a system, and enables the system to have obvious advantages in cost and reliability.

The invention discloses a dynamic blood glucose monitor capable of conducting direct monitoring through a mobile phone APP and a control method of the dynamic blood glucose monitor, and relates to wearable equipment used in the field of medical detection and a control method of the wearable equipment. The dynamic blood glucose monitor comprises a wearable blood glucose transmitter, a mobile phoneAPP terminal and a cloud memory which is connected via the mobile phone APP terminal; the blood glucose transmitter is constituted by connecting a blood glucose sensor component and a transmitter component; the mobile phone APP terminal is connected to the blood glucose transmitter via a Bluetooth mode; the mobile phone APP terminal is connected to the cloud memory via a mobile communication network; by pushing blood glucose monitoring data to an authorized user, network sharing of the blood glucose monitoring data is achieved; sports and sleep information of a wearer can be acquired via a three-axis acceleration sensor while continuously acquiring and recording human body blood glucose; recognition and awakening self-rescuing of hypoglycemic coma are offered; the blood glucose monitoringdata is transmitted to intelligent hand-held equipment or other external receiving terminals having wireless transmitting and receiving functions in a wireless transmitting mode; and data display andanalysis as well as far-end alarming and help-seeking services are offered.

The invention discloses a non-stopping type unintended car movement protection mode and device and a driving method of the device; door opening and closing processes are associated with UCMP (unintended car movement protection); upon opening of an elevator door, a protective part arranged on a car is driven by a door system and horizontally pushed to a predetermined positon of a retaining device arranged on the wall of a well and kept retained, and the protective part is not reset until the elevator door is closed. Once unintended car movement occurs, the protective part is limited by the retaining device so that a car cannot be moved, protection may be provided before the unintended car movement, stopping type control mode is not required, the service life of the car can be extended, and safety of use of the car can be guaranteed.

The invention discloses a dynamic blood glucose monitoring circuit with a built-in acceleration sensor, and a control method of the circuit, and relates to wearable equipment used for the medical detection field and a control method thereof. The dynamic blood glucose monitoring circuit consists of a blood glucose sensor assembly with a built-in blood glucose sensor, and a transmitter assembly in aconnecting manner; the transmitter assembly comprises a sensor excitation module, a sampling conditioning module, an ADC module, a wireless SoC module and a flash memory module; the dynamic blood glucose monitoring circuit consists of the blood glucose sensor assembly with the built-in blood glucose sensor, and the transmitter assembly in a connecting manner; the transmitter assembly comprises the sensor excitation module, the sampling conditioning module, the ADC module, the wireless SoC module and the flash memory module; human body blood glucose can be continuously collected and recorded,and movement and sleep information of a wearer can be obtained through a three-axis acceleration sensor, so that low blood glucose comatose identification and awakening self-saving can be performed; and the blood glucose monitoring data is transmitted to intelligent hand-held equipment or other external receiving terminal with a wireless transceiving function through a wireless transmission way, so that data display analysis and remote end alarming and help-seeking service can be carried out.

The invention discloses a tunnel surrounding rock control technology combining pressure relief and slip-casting reinforcement. The control technology comprises following steps of determining basic parameters of positions, numbers, diameters and depths of pressure relief drilling holes according to deformation conditions of surrounding rocks in an anchor supporting big deformation anchoring tunnel; using a drilling machine to performing hole drilling in an assigned position until reaching an elastic area; arranging a slip-casting steel pipe system formed by a front blocking ring, a connection hoop, a back blocking ring and a slip-casting steel pipe in the pressure relief drilling holes; using a measuring and detecting device to perform continuous observation for deformation rate of the diameters of the pressure relief drilling holes so as to determine slip-casting materials, ratio of slurry, slip-casting pressure and slip-casting time; stopping observation when the deformation rate of the diameters of the pressure relief drilling holes increases suddenly; fastening the slip-casting steel pipe and connecting the outer end part of the slip-casting steel pipe with a slip-casting pump via a slip-casting soft pipe and a hole-containing sealing plug; starting the slip-casting pump so as to allow the slurry to enter a spare hole filling area and be pressed into cracks of the surrounding rocks; and after the slip casting is finished, rotating fastening screws so as to carry out secondary fastening, thereby finishing the whole construction process.

The invention discloses a high-power output piezoelectric power converter, applying to the AC-DC or AC-AC piezoelectric power converter. In the invention, at least one third piezoelectric component replaces a capacitor arranged between a rectifying circuit and a power factor correcting circuit; at least one first piezoelectric component replaces a capacitor arranged in a resonance circuit; and at least one second piezoelectric component replaces a capacitor arranged on an output terminal of the rectifying circuit. The piezoelectric components have the advantages of small leakage current, high pressure resistance, good conversion efficiency, small volume and the like, thus reducing the danger of low pressure resistance and ignition owing to overheat in the common capacitor.

The invention discloses a high-power output piezoelectric power converter, applying to the AC-DC or AC-AC piezoelectric power converter. In the invention, at least one third piezoelectric component replaces a capacitor arranged between a rectifying circuit and a power factor correcting circuit; at least one first piezoelectric component replaces a capacitor arranged in a resonance circuit; and at least one second piezoelectric component replaces a capacitor arranged on an output terminal of the rectifying circuit. The piezoelectric components have the advantages of small leakage current, high pressure resistance, good conversion efficiency, small volume and the like, thus reducing the danger of low pressure resistance and ignition owing to overheat in the common capacitor.

The invention proposes a method for compensating for a mechanical oscillation which has a frequency spectrum which can be approximately represented by a number of discrete frequency components, at a machine shaft via at least one actuator acting directly or indirectly upon the machine shaft. At least upon one of the discrete frequency components of the mechanical oscillation is superposed by the actuator, independently of the other frequency components, at least one substantially harmonic torque of the same frequency having a specific amplitude and phase in such a manner that the amplitude of the oscillation of the machine shaft at the this frequency is reduced.

The invention discloses a folded pearl cotton package and a manufacturing method of a folded pearl cotton package. The method comprises the following steps of: by a way of die cutting, cutting component parts of a package on one whole pearl cotton plate at one time, wherein three kinds of die cutting cuts are formed, the first one is a not-through linear folding cut, the second one is a through middle cut, and the third one is a through profile cut; cutting the profiles of the component parts, forming a self-locking plug connector on partial parts, wherein the connector plug is matched with a self-locking interface; taking out the component parts on the pear cotton plate along the profile cut, removing the part in the middle cut, then, folding along the folding cut so that the self-locking plug connector is inserted into the self-locking interface to form the package without using glue to bond. The method has the advantages that the step of coating the glue is saved, the labor intensity and the production cost are reduced; the package after die cutting can be instantly transported and used, so the production cycle of the product is shortened; and the large-scale mass production is convenient, and the production space, storage space and logistics space can be saved.

The invention relates to a method used for monitoring a temperature control device of dies of an injection molding machine or a die-casting machine. The temperature control device (1) comprises an inflow end (3) and a backflow end (6), and at least two branch pipelines (4,5) which are connected in parallel with the inflow end and the backflow end on a flowing technology. Each of the at least two branch pipelines (4,5) is provided with a flow sensor (8,8'). Through comparing measuring data provided by the flow sensor (8,8'), pressure surge in the inflow end (3) and the backflow end (6) are separated from existence of leakage.

The invention relates to a layout of a weld pad which can be reworked. The layout of the weld pad is applicable to the debugger of a circuit board, and comprises a first endpoint, a second endpoint, a first conductor, a second conductor and a weld pad which can be reworked, wherein, a debugging position is arranged between the first endpoint and the second endpoint; the weld pad which can be reworked can be configured in the debugging position between the first endpoint and the second endpoint; the first conductor can connect the first endpoint with the weld pad which can be reworked; the second conductor can connect the second endpoint with the weld pad which can be reworked; the weld pad which can be reworked can be cut in the debugger, so that the weld pad which can be reworked is divided into a first test section closer to the first endpoint and a second test section closer to the second endpoint; the width of the intermediate region of the weld pad which can be reworked is narrower than that of two sides thereof, for example, the shape of the weld pad which can be reworked can be in a shape of a sandglass; and the first endpoint and the second endpoint can be conducting holes, or pins of an integrated circuit chip. The layout of the weld pad which can be reworked can further comprise a tin material, which covers the weld pad which can be reworked so as to weld the first and the second test sections.

The invention relates to a serum-free medium adapting to PK-15 all-suspended growth, a preparation method of serum-free medium and an all-suspended domestication method applied to a PK-15 cell. The serum-free medium comprises amino acid, Tween, linoleic acid, vitamin E, myristic acid, stearic acid, vitamin A, beta-mercaptoethanol, sodium chloride, glucose, cadmium chloride, linoleic acid, cholinechloride, inositol, ammonium metavanadate and the like. The provided serum-free medium can realize all-suspended growth of the PK-15 cell, so that the cost and digestion of a microcarrier are omitted,and the technical problem that the PK-15 cell microcarrier is difficult to digest and amplify in the suspended culture process is solved.

A level includes a top surface, a bottom surface parallel with the top surface, and a body accommodating at least one vial. The body has at least one through hole, at least one portion of the vial is exposed through the through hole, a close-ended locating hole is mounted at a side of the through hole, an opened-ended locating hole is mounted at another side of the through hole, and two sides of the vial are accommodated in the two locating holes respectively. A side of the opened-ended locating hole is mounted with a locating aperture so that a magnet is positioned in the locating aperture so as to fix the vial.

The invention discloses a suspension-type horizontal shaft wind generating set based on down-eccentric protection for a communication tower in the technical field of wind power generation. The suspension-type horizontal shaft wind generating set comprises a suspension gear, a wind driven generator, a wind wheel system, a tail vane system and a control system, wherein the suspension gear is fixedly arranged at the outer side of the communication tower, the wind driven generator is connected with the suspension mechanism in a rotating mode, the front end of the wind driven generator is fixedly connected with the wind wheel system, the tail end of the wind driven generator is fixedly connected with the tail vane system, the control system is arranged at the bottom of the communication tower and is connected with the output end of the wind driven generator, and the wind driven generator and the tail vane system are both horizontally arranged in the initial state. The wind generating set of the invention can be suspended on the communication tower so as to save tower cost to install the wind generating set and save space; in addition, the wind generating set of the invention can provide green and clean energy for equipment for a communication base station, saves energy and reduces emission.

The invention relates to an opposite-type optical breaker, comprising a receiver, a signal source and a metal bracket. The signal source and the receiver are arranged in parallel and oppositely; the metal bracket comprises a first vertical part, a second vertical part and a horizontal part; the first vertical part and the second vertical part are respectively used for installing the signal source and the receiver. The invention has the manufacturing method that the receiver and the signal source are encapsulated on the metal bracket, and then the molding is completed through the steps of bending, cutting, outer shell molding by ejecting plastic, etc.

The invention discloses a wireless communication terminal, which is used for wireless communication. The wireless communication terminal comprises a shell, a main body part positioned inside the shell, an antenna, a driving device, and a USB plug electrically connected with the main body part, wherein the USB plug can be controlled by the driving device to perform stretching movement. Compared with the prior art, the wireless communication terminal has the following advantages that: the USE plug can be retracted into the shell to avoid the risk of cap loss and simultaneously save the cost caused by a cap; thread transmission has a self-locking character, and the USB plug cannot be retracted into the shell by external force after extending out; and a driving shaft is rotated once to extend or retract the antenna and the USB plug at the same time, two stretching devices are not needed to be set respectively, and the space of a data card can be saved.

The scanning instrument has fogged raised dot or fogged area beside the scanning window in its upper casing, and the fogged raised dot or fogged area is used in positioning the start point of the scanning path of optical scanning module during scanning the document in the scanning window.

The invention discloses a tunnel surrounding rock control technology combining pressure relief and slip-casting reinforcement. The control technology comprises following steps of determining basic parameters of positions, numbers, diameters and depths of pressure relief drilling holes according to deformation conditions of surrounding rocks in an anchor supporting big deformation anchoring tunnel; using a drilling machine to performing hole drilling in an assigned position until reaching an elastic area; arranging a slip-casting steel pipe system formed by a front blocking ring, a connection hoop, a back blocking ring and a slip-casting steel pipe in the pressure relief drilling holes; using a measuring and detecting device to perform continuous observation for deformation rate of the diameters of the pressure relief drilling holes so as to determine slip-casting materials, ratio of slurry, slip-casting pressure and slip-casting time; stopping observation when the deformation rate of the diameters of the pressure relief drilling holes increases suddenly; fastening the slip-casting steel pipe and connecting the outer end part of the slip-casting steel pipe with a slip-casting pump via a slip-casting soft pipe and a hole-containing sealing plug; starting the slip-casting pump so as to allow the slurry to enter a spare hole filling area and be pressed into cracks of the surrounding rocks; and after the slip casting is finished, rotating fastening screws so as to carry out secondary fastening, thereby finishing the whole construction process.

The invention discloses a technology for fermenting livestock manure and matched aquaculture water through engineering bacteria and algae. The technology comprises the following steps: (1) treating the livestock manure discharged from a livestock house to obtain a pretreated solution; (2) inoculating a first photosynthetic reactor containing a compound photosynthetic bacterial flora with the pretreated solution, and performing amplification culture to obtain a compound photosynthetic bacterial flora fermentation solution; pumping out the compound photosynthetic bacterial flora fermentation solution, dividing the compound photosynthetic bacterial flora fermentation solution into two parts, adding one part of the compound photosynthetic bacterial flora fermentation solution into an aquaculture pond, and adding the other part of the compound photosynthetic bacterial flora fermentation solution into a second photosynthetic reactor containing a compound algal flora for amplification culture; (3) performing amplification culture in the second photosynthetic reactor to obtain a compound algal flora fermentation solution; (4) pumping out 0.5-1.5% of water in the aquaculture pond first and then supplementing equal amount of the mixed fermentation solution into the aquaculture pond; (5) treating the water pumped out from the aquaculture pond, returning the water to the livestock house, and reusing the water as recycled water. The technology has the advantages as follows: the technology is applicable to large-scale disposal of the livestock manure, clear water is not required to be added for dilution, environmental requirements are met and the like.

The invention relates to a wire integration type lighting lamp box. The wire integration type lighting lamp box is composed of a box body, wherein a plane light emitting device is encircled in a space formed by the box body and comprises LED (Light Emitting Diode) straight strip lamps, a connecting device and a fixing device, wherein the fixing device comprises a clamping seat groove and a terminal plate fixing groove; the connecting device comprises an electric wire, a connecting terminal and a terminal plate; viewing from the cross section of the fixing device, an opening is formed in a single surface of the clamping seat groove, two symmetric bulges are arranged at the edge of the opening of the clamping seat groove, the direction of each bulge is perpendicular to that of the opening of the clamping seat groove, and each bulge faces a space formed by the edge of the clamping seat groove; the terminal plate fixing groove comprises a clamping groove cavity and a terminal plate cavity; a sidewall partition is arranged between the clamping groove cavity and the terminal plate cavity; two opposite terminal plate clamping grooves are formed in the sidewall of the terminal plate cavity; the terminal plate cavity is provided with an opening; the clamping groove cavity is seamlessly embedded into the clamping seat groove; the terminal plate is inserted and fixed into the terminal plate clamping grooves; the connecting terminal penetrates through the opening of the terminal plate cavity, is connected with the terminal plate and is connected with the electric wire; the electric wire is connected with the LED straight strip lamps.

The method involves superimposing at least one of the discrete frequency components of the mechanical vibration (2) with an essentially harmonic torque (14) of equal frequency with a defined amplitude and phase by an actuator (11) and independently of the other frequency components so that the vibration amplitude at this frequency is reduced. Independent claims are also included for the following: a group of printing mechanisms and a printing machine.

The invention is concerned with the packaging method of the multi-colored LED and the packaging structure. It is to make the prepared tincture packaging by preparing the colors into the package firstly, and to locate the white light irradiance wafer on the carrier body, next is to connect the two electrodes of the white light irradiance wafer with the pair of conductive frame electrically, and the last is to locate the tincture packaging on the top part of the white light irradiance wafer and the conductive frame for completing the packaging. The white light irradiance wafer can appear different tinctorial beam through the tincture packaging.

The invention relates to the technical field of shoe making, and provides a method for preparing indoor two-color casual shoes. The obtained indoor two-color casual shoes are subjected to SEBS modification, thus, the material crystallization rate is decreased, the compressive deformation property of a material is improved, rubber is good in hand feeling, and comfort is high; the shoes are subjected to OBC modification, the material dimensional stability is improved; an environment-friendly cross-linking agent 17-40B, volatile organic compounds such as acetophenone are not used, and the shoes has the environmental protection characteristic; and a mold device adopted by the method for preparing the indoor two-color casual shoes is rapid in heating, quickly, the duplication precision of solelines is effectively improved, demolding is quick, the injection molding yield and production efficiency are effectively improved, and the method is suitable for mass production and use.

The invention relates to a method used for tracking the rotating speed of an electric motor through a frequency converter. The method comprises the following steps: firstly, the frequency converter is controlled to output currents with the set frequency, and the amplitude of the output current is fixed; secondly, according to the output frequency of the frequency converter, the voltage value of the V / F curve of the electric motor is calculated; thirdly, whether the output voltage of the frequency converter is larger than or equal to the voltage value of the V / F curve of the electric motor is judged, if yes, the step four is carried out, and if no, the step five is carried out; fourthly, the output voltage and the output frequency of the frequency converter are maintained to be unchanged, and the search is finished; and fifthly, the set frequency is changed, and the step one is executed. The invention also provides a corresponding device. The invention cuts the cost of a rotating speedtracking circuit out, improves the reliability of a system, and enables the system to have obvious advantages in cost and reliability.

The invention relates to the technical field of shoe-making technology, and provides a method for preparing soft, skin-friendly slippers. The shoes prepared by the indoor two-color casual shoes are modified with low-melting polyamide, which improves the polarity of materials, reduces crystallization, and can effectively Control shrinkage, improve the compression deformation performance of the material, and the rubber has a good feel and high comfort; OBC modification improves the dimensional stability of the material; The use of environmentally friendly cross-linking agent, no volatile organic compounds such as acetophenone, has environmental protection characteristics Moreover, the mold device used in the preparation method of the soft skin-friendly slippers heats rapidly, effectively improves the reproduction accuracy of the sole pattern, and demolds quickly, effectively improves the injection molding yield and production efficiency, and is suitable for mass production.

The invention provides a vehicle moving system and a laying method thereof. The vehicle moving system comprises guide rails, a vehicle tray, a guide rail collet and a support mechanism, wherein the vehicle tray is used for bearing wheels of a vehicle and is movably arranged on guide rails along the guide rails, the guide rail collet is paved on the ground surface, the support mechanism is positioned among the guide rail collet and the guide rails, the guide rails are fixed on the support mechanism, concrete is buried in a space under the upper surface height on both sides of the guide rails, and the concrete is internally provided with a reinforcing steel bar structure connected with the guide rail collet. The guide rail collet is paved under the guide rails so that the load bearing strength of the guide rails is enhanced. According to the vehicle moving system and the laying method thereof, the cost and the time spending on digging the ground surface can be saved at least, the construction cost is obviously saved, and the construction time is obviously shortened.