513results about How to "Precise time control" patented technology

The invention provides a low-voltage ride-through testing system of a wind generating set. The testing system comprises a voltage dropping system, an on-site measuring system, a remote monitoring system and an on-site controlling system, wherein the on-site measuring system is in bidirectional connection with the remote monitoring system; the remote monitoring system is in bidirectional connection with the on-site controlling system; the on-site controlling system is in bidirectional connection with the voltage dropping system; the voltage dropping system is in one-way connection with the on-site measuring system; and the on-site measuring system is in bidirectional connection with the on-site controlling system. The low-voltage ride-through testing system of the wind generating set, disclosed by the invention, is in accordance with criterion IEC61400-21, can realize voltage drop of different degrees and various types and can satisfy requirements of wind generating sets in all countries on low-voltage ride-through testing. The low-voltage ride-through testing system is a movable detecting system which is adaptable to performing the low-voltage ride-through characteristic testing on all wind generating sets which have been operated in the wind power field, and has high safety as well as high stability.

The invention discloses a method for inhibiting peak starting current of a start-stop motor. The method includes that firstly a relay with a current limiting resistor is added to a main start-stop motor loop comprising a storage battery, an ignition switch, a contact of an electromagnetic switch and the start-stop motor, and two binding posts of the current limiting resistor and the relay are parallelly connected and then connected between the ignition switch and the contact of the electromagnetic switch; and secondly, a power supply of the storage battery supplies power for coils of the relay and the electromagnetic switch respectively. The invention further discloses a relay for achieving the method for inhibiting peak starting current of the start-stop motor and a start-stop motor for implementing the method for inhibiting peak starting current of the start-stop motor. According to the method, the relay and the start-stop motor, the current limiting resistor is cut in or cut out when ignition is performed in the start-stop motor loop, so that overlarge starting current can be inhibited at the moment of starting of the start-stop motor so as to achieve the purpose of prolonging the service life of the start-stop motor.

The invention relates to a vacuum vapor-phase replacement type Chinese medicinal material-moistening technique, which can effectively solve the problem on how to soften Chinese medicinal materials and ensure quality as well. The specific technical scheme for solution is as follows: medicinal material is loaded into a container, the container is vacuumized, vapor is filled into the container, and can be kept for a certain period of time, a temperature controller is arranged and can control the internal temperature of the controller after the vapor is filled, the amount of the filled vapor is controlled, and medicinal material moistening can be kept for a certain period of time. By means of the production method, the color, smell and piece shape of the medicinal material can be maintained to the max, the loss of effective components can be reduced, the curative effect of Chinese medical clinic decoction and preparation is guaranteed and is stable and controllable, meanwhile, the cost can be reduced, the man-hour is greatly saved, environment pollution is reduced, and the technique is favorable for the development of the industrialized and standardized production of traditional Chinese medicine decoction pieces.

The invention discloses a rapid screening method for drought-enduring variety of rice at seedling stage, comprising the following steps that: after soil drought processing and drought processing simulated by polyethylene glycol (PEG), variety with strong drought tolerance in two processing methods is screened out. By simultaneously performing soil drought and drought simulated by PEG and conjointly analyzing the result, the defects of two drought processing methods can be simultaneously avoided and the advantages of two methods can be exploited to the full. Thus, the experimental result is accurate and the results of the studies of breeding, group construction, gene mapping and the like of the drought-enduring variety and drought-sensitive variety which are screened out are more credible, and the time and the expenditure of researchers are saved.

The invention relates to the field of kitchen electric appliances, and discloses a cooking equipment control method, cooking equipment control equipment and cooking equipment containing the control equipment. The cooking equipment control method comprises the following steps: receiving the weight of food to be cooked; receiving the food type of the food to be cooked; according to the weight and the food type of the food to be cooked, determining the heating power and time required by the food to be cooked, and controlling the cooking equipment so as to heat the food to be cooked according to the determined heating power and time. The cooking power and cooking time of the cooking equipment can be controlled accurately, so that the cooked food can meet user requirement.

Precise timing control across multiple standardized chassis such as PXI is obtained by providing several control signals over PXI_LOCAL within each chassis, and by providing these control signals to other chassis. A Least Common Multiple (LCM) signal enables all clocks to have coincident clock edges occurring at every LCM edge. A start sequence allows all PXI expansion cards in the test system to start at the same time. A MATCH line enables pincard modules to check for expected DUT outputs and either continue execution of their local test programs or loop back and repeat a section of the local test program in accordance with the result of the DUT output check. An End Of Test (EOT) line enables any one pincard module to abruptly end the local test programs running in all other pincard modules if an error is detected by the local test program in the pincard module.

The invention relates to a single-side galvanizing method for producing a hot-dip galvanized steel pipe. The single-side galvanizing method comprises the following steps of: 1) workpiece pretreatment; 2) acid washing; 3) water washing; 4) plating aid dipping; 5) neutralization of plating aid on the inner wall of the steel pipe; 6) drying and preheating; 7) hot-dip galvanization; 8) passivation; 9) cooling; and 10) inspection and packaging. By destroying a plating aid layer on the inner wall of the steel pipe and accurately controlling process parameters such as galvanizing time, the single-side galvanizing method for producing the hot-dip galvanized steel pipe has the advantages that the single-size galvanizing goal of fully galvanizing the outer wall and not galvanizing the inner wall at all is achieved, the single-side hot-dip galvanized steel pipe produced by adopting the method can be closely combined with a plastic pipe, the plastic is not apt to fall, the service life of a compound pipe is guaranteed, the product quality is greatly improved and the market promotion prospect is wide.

An embodiment of the invention provides an intelligent meeting collaborative method and a meeting terminal. The method comprises the steps that the meeting terminal receives the transmitted multimedia information of a meeting by a remote device; the meeting terminal determines whether the meeting requires the participation of a user based on the multimedia information of the meeting and preset multimedia content; the meeting terminal determines a participation status of the user; and if the meeting terminal determines that the meeting requires the participation of the user and the participation status of the user is absence, the meeting terminal transmits participation reminding information to the user, the participation reminding information being used for reminding the user to participate in the meeting. The method provided by the embodiment of the invention can accurately control the participating time of the user, so that the user cannot miss any content of the meet, thereby improving the participating efficiency of the user.

The invention which is suitable for the technical field of drying provides a fruit vacuum freeze drying method. The method comprises the following steps: prefreezing: refrigerating fruits to be dried; and carrying out five-stage drying under vacuum conditions. The fruit vacuum freeze drying method of the invention, which adopts a five-step gradient cooling mode of the heating temperature, allows heat required by water sublimation to be guaranteed, cooling to be timely, the basic balance of the heat supply and demand to maintained, the material dissolving caused by too fast heating to be prevented, and the water sublimation rate to be accelerated.

The invention provides a cooking robot, relating to the technical field of kitchen appliance and aiming to reduce labor strength. The cooking robot comprises a cooking pan, a cooking shovel, a plurality of vegetable boxes, a plurality of material boxes, a motor, a connecting rod and a control module, wherein the lower end of the cooking shovel extends into the cooking pan, the vegetable boxes and the material boxes are respectively fixed right above the cooking pan; each vegetable box and each material box are respectively provided with an outlet at the bottom thereof; each outlet is provided with an electric control check valve for switching the outlet; the motor is fixed above the cooking pan; one end of the connecting rod is fixedly connected with the power shaft of the motor and the other end is fixedly connected with the upper end of the cooking shovel; the control module comprises a singlechip, a USB communication chip and a USB connector; and the data output interface of the singlechip is connected with each electric control check valve and is connected with the motor via a positive and negative rotating controller. The cooking robot can automatically add materials and fry foods in the pan according to a recipe.

The invention provides a high-performance aerogel composite material, and a preparation method and equipment of the high-performance aerogel composite. The aerogel composite material comprises a silicon dioxide aerogel and a fiber material, wherein the silicon dioxide aerogel uses tetramethyl orthosilicate and water as raw materials and an alcohol solvent as a solvent to prepare a silica sol, and no gel catalyst is added in the silica sol. The equipment comprises a reaction part and a circulated cooling part. The method comprises the steps of preparing the sol, dipping glue, standing, gelatinizing, aging gel, dewatering, drying and the like. With the adoption of the method, materials with planar or abnormal shapes and multiple sizes can be conveniently and selectively prepared, the gelation time is controllable, no catalyst is needed, the kinds of raw materials are few, the operation is simple and convenient, and the environmental pollution is low. The material is excellent in heat-insulating property and has a wide application prospect in the fields of the civil industry, the space flight and aviation industry and the military industry.

The invention discloses a badminton picking machine. A vehicle frame is provided with a rotation table with a cylindrical structure; a funneled circular disc covers the rotation table; four badminton drums and four baffle plates which are arranged in the same direction as the axial direction of the rotation table are uniformly distributed along the circumferential direction of the funneled circular disc; an electric motor is connected with a ratchet wheel set consisting of ratchet wheel mechanisms which are arranged in opposite directions through a transmission shaft; the ratchet wheel mechanism D on the ratchet wheel set is connected with a sprocket mechanism through a chain B, and the sprocket mechanism is meshed with crowned teeth F on the external bottom surface of the rotation table; the ratchet wheel mechanism on the ratchet wheel set is connected with a chain wheel A on a rotation shaft of a picking mechanism through a chain A; the picking mechanism comprises the rotation shaft and a ferris wheel which is fixedly arranged on the rotation shaft, a funnel is arranged between the rotation table and the picking mechanism, and the badminton drums are always positioned below the funnel; and the collected badmintons are automatically arranged neatly by using the characteristic that the directions of the badmintons are automatically adjusted in the flying process, so that the picking process is convenient to realize and is greatly simplified.

The invention relates to a full-automatic sterilizing quality-guaranteeing steamer and a sterilizing technology which are suitable for sterilizing and quality guaranteeing of fully closed box-packed fast food. The steamer comprises a pot body, a pot cover, a steam pipe, a return water storage tank, a vent pipe, a water cycle pipeline and a drain pipe, wherein the water cycle pipeline comprises a return water pipe, a chief spray pipe, a water inlet pipe and a water outlet pipe, the pot body is provided with a thermometer I, a pressure gauge I, a water-thermometer I and a reducing valve I, and is connected with an automatic control box, the pot cover is hermetically connected with the pot body, the pot body is connected with the steam pipe, the vent pipe, the chief spray pipe and the water outlet pipe, the return water storage tank is connected with the return water pipe and the vent pipe, the drain pipe is communicated with the water outlet pipe, the inner cavity of the pot body comprises a temperature control sensor, a water outlet hole, a steam heating pipe, an upper spray pipe and a side spray pipe, and the upper spray pipe and the side spray pipe are communicated with the chief spray pipe. The steamer can be used for automatically and accurately controlling the temperature, pressure and time, guaranteeing the sterilizing quality through heating and cooling by gradient, and saving energy and water because the hot and cold spray water is used and stored reasonably.

Precise timing control within a standardized chassis such as PXI is obtained by providing several control signals over PXI_LOCAL. A Least Common Multiple (LCM) signal enables all clocks to have coincident clock edges occurring at every LCM edge. A start sequence allows all PXI expansion cards in the test system to start at the same time. A MATCH line enables pincard modules to check for expected DUT outputs and either continue execution of their local test programs or loop back and repeat a section of the local test program in accordance with the result of the DUT output check. An End Of Test (EOT) line enables any one pincard module to abruptly end the local test programs running in all other pincard modules if an error is detected by the local test program in the pincard module.

The invention discloses an ultra-fast biasing temperature instability test system and method applied to a semiconductor device. The system comprises an arbitrary waveform generator, a waveform processor, an input probe, an output probe and a drain bias module. The arbitrary waveform generator generates a stress voltage signal, a restore voltage signal and a measuring voltage signal that have precisely controllable levels and time; and a gate voltage signal is loaded at a gate of a measured device by the input probe. According to the invention, the voltage amplitude and time that can generate a BTI effect can be controlled precisely; the BTI effect in extremely short time can be represented; and the test sensitivity is high. The representation of a threshold voltage drift can be realized in very short time; the test result is little affected by a restoring effect of a BTI effect; and thus accurate measurement is realized. The system and method can be applied to electrical characteristic studies of high-performance planar transistors using silicon, germanium, III-V class compounds as carrier channels, a fin-type three-dimensional gate, a field-effect transistor having a ring-gate (GAA) structure.

The invention provides a digital nucleic acid amplification instrument. The digital nucleic acid amplification instrument comprises a case; a temperature controller and a fan module are arranged in the case; the fan module comprises a thermoelectric cooler; the thermoelectric cooler is arranged at one side of the case; the temperature controller is arrange at the other side of the case at a position close to the thermoelectric cooler, electrically connected with the thermoelectric cooler and used for controlling the temperature of the temperature controller in real time; and the thermoelectric cooler is arranged in the case in virtue of a push-and-pull structure which can enter the case from the front and exit from the back or enter the case from the back and exit from the front. The digital nucleic acid amplification instrument is simple in structure and convenient to operate; the arrangement manner of each part is optimal, so the space of the integral instrument is reduced and production cost is lowered; and the thermoelectric cooler and the temperature controller can realize temperature circulation, accurately control the denaturation, annealing and extension temperature, time and cycle numbers of a template and realize accurate regulation and control in rapid rise and reduction of temperature in amplification.

The invention relates to a spray feeder for granulated feed. The spray feeder comprises a granulated feed feeding hopper, a dispersing tank, a collecting hopper, a discharging pipe and an air source device, wherein the granulated feed feeding hopper and the collecting hopper are of conical structures, and the lower end of the feeding hopper is communicated with the upper end of the dispersing tank. A discharging valve is arranged between the feeding hopper and the dispersing tank and is subjected to on-off control by a connected controller, an air inlet in the lower end of the dispersing tank is communicated with the air source device, an air flow regulating valve is arranged between the air inlet and the air source device, the upper end of the collecting hopper is communicated with the discharging pipe, the open lower end of the collecting hopper is arranged right above the air inlet correspondingly, and the discharging pipe penetrates out of the dispersing tank. The spray feeder for the granulated feed has the advantages that automatic spray feeding of the granulated feed is achieved, so that physical labor is reduced, feed feeding quantity, feeding time and spray feeding areas are controlled accurately, and granulated feed waste is avoided.

The invention relates to an impact test box. The impact test box is characterized by comprising a high-temperature box (1), a low-temperature box (25) and a control system (28); high-temperature liquid (2) and a high-temperature box heating device (3) are arranged in the high-temperature box (1); low-temperature liquid (24) is arranged in the low-temperature box (25); the temperature of the high-temperature box (1) and the temperature of the low-temperature box (25) are both controlled by the control system (28); the high-temperature box (1) is communicated with a liquid inlet of a test piece (13) through a high-temperature pump (7) and a high-temperature liquid inflow valve (8); the low-temperature box (25) is communicated with a liquid inlet of the test piece (13) through a low-temperature pump (19) and a low-temperature liquid inflow valve (17); a liquid outlet of the test piece (13) is connected back into the high-temperature box (1) and the low-temperature box (25) through a high-temperature liquid return valve (15) and a low-temperature liquid return valve (16). The working environment of the impact test box is comfortable and safe, the test process is automatically completed completely, test conditions have unified standards, human instability factors are removed, and energy consumption is reduced.