412results about How to "Guarantee status" patented technology

The invention discloses an unmanned vehicle steering system and a control method thereof. The system comprises an execution motor, a steering machine, a motor coder, a non-contact type zero position detection mechanism, a non-contact type left limiting detection mechanism, a non-contact type right limiting detection mechanism, a front wheel absolute corner mechanism and a front wheel corner double closed loop control system. The execution motor is a steering driving mechanism, and the input end of the execution motor is connected with the output end of the steering machine. The motor coder is connected with an output shaft at the back end of the execution motor. The unmanned vehicle steering system is favorable for improving steering control accuracy of unmanned vehicles, adopts a selector switch to switch the control process of manual driving / automatic driving, facilitates program debugging and ensures vehicle and personnel body safety under the emergency condition.

The invention relates to a system for sharing and accessing a power grid encryption machine based on Remoting software architecture and intelligent electric meter parameter updating method for the system for sharing and accessing the power grid encryption machine based on the Remoting software architecture. The system comprises a front-end processor, the encryption machine, a client-side and an intelligent electric meter, wherein the front-end processor is connected with the encryption machine and communicated with the encryption machine and is interactive with the client-side to finish the identity safety certificate process of the intelligent electric meter. The client-side is connected with the intelligent electric meter and performs on-line reading and programming to the intelligent electric meter. The front-end processor and the client-side invoke a remote object interface through the Remoting software architecture and share and use the encryption machine. Resources provided by Chinese electric power research institute in state power grid construction are maximally shared. A power supply network electric quantity information acquiring system safely enciphers data and interactively processes and uses the data and enables state power netlist production to get rid of the difficulty lack of the encryption machine, the operation is convenient, and production, operation and asset management are facilitated.

The invention provides a assessment method of lithium battery health status, the method including: confirming the assessment factor of lithium battery health status, computing initial value of assessment factor weight value for the lithium battery health status and actual value of assessment factor weight value for the lithium battery health status, assessing the health status of lithium battery. This invention synthesizes the terminal voltage change rate, ohmic internal resistance and polarize internal resistance of lithium battery as the assessment factors which improving the assessment accuracy of lithium battery health status, using the method of measuring and computing terminal voltage change rate, ohmic internal resistance and polarize internal resistance of lithium battery after the pulse finishing discharging at the same time, so as to ensure the state identity and time consistency of lithium battery state measurement and improve the assessment factor accuracy of lithium battery health status, synthesizing the effect of standard deviation and average number indicators of assessment factor, and reflecting better overall sign changes of assessment factor in different levels, realizing the fast and precise measuring for lithium battery health status.

The invention discloses a torque coordinated control method and a torque coordinated control system for a hybrid electric vehicle. The method includes the steps: receiving a torque increase target value and a torque increase effective sign; acquiring failure levels of an engine, a motor and a power battery of the vehicle and the temperature of the power battery; comparing the failure levels of the engine, the motor and the power battery of the vehicle with preset failure levels, and comparing the temperature of the power battery with a preset temperature value; and increasing torque by selecting different torque increase response modes according to comparison results. As compared with the prior art, when the torque needs to be increased during slippage of the vehicle, torque of the engine and torque of the motor can be controlled in a coordinated manner, and the shortcomings of an existing control method can be improved, so that the requirements of a vehicle stability control system on torque increase are met. Besides, by the aid of the method, driving comfortableness, safety and economy can be improved, and emission is reduced.

The invention relates to a liquid die forging and rolling compound formation method for a GH4033 high-temperature alloy irregular-section large ring piece. The method comprises the following steps of: 1) smelting; 2) performing liquid die forging, namely fixing a liquid die forging mold on an indirect extrusion casting machine, pouring a quantitative amount of alloy solution into the liquid die forging mold at the pouring temperature of between 1350 and 1450 DEG C, pressurizing at the speed of 40 to 50 mm / s, filling for 1 to 6 seconds at the specific pressure of 300 to 400 MPa, keeping the pressure for 50 to 90 seconds, and thus obtaining a similarly final section ring blank; 3) homogenizing; 4) performing afterheat isothermal rolling, namely cooling the homogenized similarly final section ring blank to the temperature of between 1100 and 1140 DEG C, and performing afterheat isothermal rolling on a radial shaft compound ring rolling machine; 5) performing thermal treatment, namely performing solid solution instant thermal treatment, keeping the ring blank at the temperature of between 900 and 1000 DEG C for 1 to 2 hours, performing air cooling, then heating to the temperature of 1080 DEG C, keeping the temperature for 8 hours, performing air cooling to the temperature of 750 DEG C, keeping the temperature for 16 hours, and performing air cooling; and 6) finishing.

The invention discloses a direct analysis device of solid samples, wherein a sample pool is installed on a three-dimensional moving platform, a microscopic imaging system is aligned to a solid sample in the sample pool, a laser beam emitted by a picosecond laser is focused onto the surface of the sample in the sample pool through a laser optical system, particles generated by laser ablation enter an inductively coupled plasma source mass spectrometer through an aerosol transmission system, the direct analysis device has the advantages that the laser wavelength can be selected from 1064 nm, 532 nm, 355 nm and 266 nm, the pulse width is 30 ps, the pulse frequency is 20 Hz, the pulse energy is continuously adjustable, and the maximal pulse energy of 266 nm reaches 3.0 mJ; the position of the sample pool is three-dimensional controllable, and the transmission pipeline of the aerosol transmission system switched by a tee solenoid valve is short; a non-coaxial system is adopted to quickly focus and position the sample ablation position. As shown in analysis, basically no element fractionation effect exists in the elements of low alloy steel, pure copper, pure aluminum and the like, and basically no matrix effect exists in the elements of iron base, copper base, aluminum base and the like.

The invention discloses silicone-oil-free folic acid shampoo and a preparation method thereof. The silicone-oil-free folic acid shampoo comprises raw materials in percentage by mass as follows: 30%-60% of an amphoteric surfactant, 6%-10% of a nonionic surfactant, 0.1%-5% of a conditioning agent, 0.005%-0.10% of folic acid, 0.30%-3% of a plant extract, 0-0.50% of an anti-corrosion agent, 0-0.30% of essence and the balance of deionized water. The shampoo does not contain silicone oil, has good conditioning performance, can reduce hair breaking and alopecia, can be used for washing hair safely, and is suitable for pregnant and after-delivery women.

The invention provides a freezing and unfreezing integrated cabinet which comprises an incubator body and closed containers. The incubator body comprises a freezing chamber and an unfreezing chamber,and box-type frameworks are fixed in the freezing chamber and the unfreezing chamber correspondingly. Sealing plates are fixed on the upper and lower portions and the front and rear portions of each framework. An air exhaust channel plate is fixed to the left side of each framework, and an air return channel plate is fixed to the right side of the framework. The closed containers are in a flat shape and can be erected in the frameworks of the freezing chamber and the unfreezing chamber in a layered mode. Heat conduction fins are welded or riveted on the upper surface and the lower surface of each closed container in rows. One end of a channel formed by a gap between every two adjacent rows of heat conduction fins is aligned at a corresponding air exhaust hole of the corresponding air exhaust channel plate, and the other end of each channel is aligned at a corresponding air return hole of the corresponding air return channel plate; the air exhaust channel plates are provided with the air exhaust holes; the bottom of the framework in the freezing chamber is provided with a cold air generating device; and the bottom of the framework in the unfreezing chamber is provided with a cold and hot airflow generating device. According to the freezing and unfreezing integrated cabinet, the freezing speed and the unfreezing speed are high, breeding of microorganisms can be effectively restrained, the quality of food is better ensured, and moreover, resources can be greatly saved. The invention further provides a method for freezing and unfreezing meat by adopting the integrated cabinet.

The invention provides a spiral pyrolysis reactor comprising a shell, a material inlet, a pyrolysis gas outlet, a heat carrier outlet and a powdered carbon outlet. The spiral pyrolysis reactor is characterized in that a vertical shaft is fixed in the center of the shell; a spiral baffle plate whose diameter becomes larger gradually is sleeved on the vertical shaft; a spiral bottom plate is fixed and sealed between the bottom of the spiral baffle plate and the vertical shaft from the middle-upper part of the vertical shaft; a spiral sieve mesh in fixed between the bottom of the spiral baffle plate and the vertical shaft from the middle-lower part of the vertical shaft; a spiral slideway is formed by the spiral baffle plate, the spiral bottom plate and the spiral sieve mesh; the upper end of the spiral slideway is supported at the bottom of the material inlet; the heat carrier outlet is arranged on the inner end of the shell and is supported on the tail end of the spiral slideway whose bottom is not sealed; a spiral supporting plate which rotates in the same direction as the spiral baffle plate is sleeved and fixed on the middle part of the spiral slideway whose bottom is not sealed, wherein the vertical shaft is arranged the on the middle part of the spiral slideway; the edge of the spiral supporting plate is slightly larger than the spiral baffle plate which is arranged on the spiral supporting plate and keeps a certain distance with the spiral slideway which is arranged above and below the spiral supporting plate. The spiral pyrolysis reactor integrates the biomass powder reaction with the separation device, has simple structure, good sealing performance and excellent working performance.

The invention provides a novel archives intelligent management system. The system is characterized by comprising an information collecting device, an access control sensor, an alarming device, a customer service prompting module, and a control host. The system is provided with a credit recording module. When a user is about to borrow, the host will evaluate the credit of the customer; if the credit of the customer is low, the system will turn down the request of the customer; the borrowing request is turned down, and the safety of the archives is guaranteed. The access control sensor will scan the people go in or out of the archives and send the information. If a person borrows out archives without permission, the alarming device will give an alarm to alert the staffs so as to ensure the safety of the archives.

The invention provides a preparation method of a clinical-grade human umbilical cord mesenchymal stem cell complex factor and lyophilized powder for repairing. The preparation method comprises preparation of a clinical-grade stem cell complete culture medium, extracting and culturing human umbilical cord mesenchymal stem cells, preparing the human umbilical cord mesenchymal stem cell complex factor, lyophilizing the human umbilical cord mesenchymal stem cell complex factor and the like. The prepared human umbilical cord mesenchymal stem cell complex factor and lyophilized powder do not containallogeneic serum components; the components of the culture medium are determined and the human umbilical cord mesenchymal stem cells have a rapid cell multiplication speed when being cultured by utilizing a culture medium system and have a strong bioactive substance secretion capability; the production cost is extremely reduced, so that the human umbilical cord mesenchymal stem cell complex factor and the lyophilized powder are suitable for industrialized large-scale production and can be applied to clinical wound healing and repairing type biomedicine products.

The invention discloses an umbilical cord mesenchymal stem cell preparation and a preparation method and application thereof. Through exploration and verification by a large quantity of experiments, the 3rd-10th-generation umbilical cord mesenchymal stem cells are selected as raw materials, and by a method of dispersing tissue by a mechanical method and then performing treatment with mixed enzymes containing collagenase I, collagenase II and trypsin for a short time for many times, the vitality of the separated umbilical cord mesenchymal stem cells is guaranteed. A culture medium special for the umbilical cord mesenchymal stem cell preparation, containing DMEM / F12 (without phenol red), 10% FBS, 20 kinds of amino acids and 8 kinds of vitamins, is adopted, mixed liquor of repeated cell culture supernatant and cell lysate supernatant is collected, more umbilical cord mesenchymal stem cell active protein and active factors are obtained, the preparation cost is reduced, and industrial requirements for a stem cell product preparation are met. The prepared umbilical cord mesenchymal stem cell preparation can promote proliferation of epidermic cells and skin fibroblast, is safe and is free from toxic and side effects, an allergy does not exist, and when the umbilical cord mesenchymal stem cell preparation is applied to feature-beautifying skin-care products, the effects are notable.

The invention provides children yogurt and a preparation method thereof, wherein per 1000 parts by weight of the children yogurt comprises following raw materials, by weight: 80-90 parts of white granulated sugar, 5-10 parts of milk protein powder, 3-5 parts of physically-modified starch, 5-10 parts of sweet condensed milk and 885-907 parts of milk. The preparation method comprises following steps: (1) dissolving the milk protein powder in the milk and performing circulation to obtain dosing milk, and allowing the dosing milk to stand for hydration; (2) performing temperature increasing to the hydrated dosing milk, adding the physically-modified starch and the white granulated sugar and performing circulation; (3) performing homogenization to the circulated dosing milk; (4) sterilizing the homogenized dosing milk; (5) decreasing the temperature of the sterilized dosing milk, adding a bacterial strain for performing fermentation to obtain fermented milk; (6) performing demulsification to the fermented milk, cooling the demulsified fermented milk and filling the demulsified fermented milk into bottles to obtain the children yogurt. The children yogurt is free of food additives, can be stored for a long period, and is fine and refreshing in taste.

The invention relates to a grading farming method of a specific pathogen free seed shrimp of penaeus vanmamei. The method comprises the following steps of: (1) secondary seedling cultivation; (2) three-stage cultivation, and (3) secondary seed shrimp cultivation. The method disclosed by the invention is simple and convenient to operate, and suitable for large-scale production of the seed shrimp of the penaeus vanmamei.

The invention discloses a plant stereo cultivation device for a family, which comprises at least one cultivation tray which is parallelly arranged in turn in the vertical direction to form a tray group; the cultivation tray comprises a tray bottom, a tray body arranged on the tray bottom and at least one plant growing port arranged on the tray body; and the inside of the cultivation tray is provided with a cultivation medium space which is communicated with the plant growing port. The household plant stereo cultivation device adopts cultivation tray structures which can be combined in stereo mode, can fully utilize narrow space on a balcony of a family in a high-rise to plant plants such as green vegetables without pesticide residue and so on, meet the demands of domestic children and old people on the green vegetables, create amusement and recreation and housework conditions for the old people, achieve the environment-friendly aim of purifying air and keeping the prior state of the space and floor, simultaneously provide good sight for an apartment, achieve decorative effect, beautify family environment, eliminate the crowding feeling of the narrow space on the balcony of the family and improve the balcony utilization rate.

The invention discloses a preparation method of a tungsten-based high-gravity alloy material. The preparation method is characterized in that quinary amorphous bonded-phase powder of which the proportion of Co to Ni to Cu to Cr to Fe is 1:1:1:1:(0.5 to 1.5) is prepared first by adopting an intermittent mixing ball mill; then the quinary amorphous bonded-phase powder is mixed with W powder; and finally, the powder is put into a die for SPS sintering, the amorphous bonded phase is crystallized by adopting quick heating and short-term insulating processes, and finally, the tungsten-based high-gravity alloy of which the bonded phase is high-entropy alloy of a face-centered cubic structure is prepared. According to the preparation method, the problems of difficulty in keeping bonded-phase components when polynary complex alloying or prealloying treatment is performed on the bonded phase and grain growth and low relative content of the W hard phase due to solid solution of W in the bonded phase when the tungsten-based high-gravity alloy is prepared at present are solved, and the preparation method can be used for preparing the tungsten-based high-gravity alloy used in the fields of aerospace, national defense and military industry, mechanical engineering and the like.

The invention discloses a high-load file robot based on a flexible manipulator. The invention belongs to the field of file robots, and particularly relates to the high-load file robot based on a flexible manipulator and a using method of the high-load file robot. The high-load file robot device based on the flexible manipulator comprises a file box, a cooperation arm, an intelligent moving platform, a mechanical clamping jaw, a lifting mechanism and a temporary storage bin. The high-load file robot based on the flexible manipulator and the using method thereof have the beneficial effects that the defect that in the prior art, management is disordered, the management efficiency is lower, the size is larger, the field construction strength is high, a grabbing mechanism is not flexible enough, and the precision cannot meet the current file storing and taking requirements are overcome. Reasonable integration with dense files is achieved, automatic grabbing, checking and inspection of the files are completed, the maximum grabbing quality of the files is 5 kg, and high-load grabbing of the files can be achieved.

The invention belongs to the field of plant specimen preparation, and particularly relates to a method for preparing cured specimens of a citrus leaf disease. The preparation method provided by the invention comprises the following steps: collecting specimens; adding solid copper oxide to 50% glacial acetic acid solution to obtain a copper acetate saturated solution, and diluting the solution withsterile water for 1 to 2.5 times to obtain a color retention liquid; adding the color retention liquid into the collected specimens after being heated for color retention treatment, and taking out the specimens after the leaves are changed from green to yellow-green or brown and to green again; evenly coating colorless nail polish on the surfaces of the specimens after the specimens through the color retention are pressed and dried, placing the specimens in a neat by resins after drying for embossing, and obtaining cured specimens of the citrus leaf disease after drying. The cured specimen ofthe citrus leaf disease prepared by the preparation method provided by the invention can be preserved for a long time, and can completely and truly reflect the characteristics of the citrus leaf disease, which is convenient for repeated use and observation, and has important significance in teaching and research.

The invention relates to a preparation method of cold-resistant, soft and down-proof coating adhesive for textile. The preparation method is characterized by comprising the steps of stirring 80-90 parts by weight of polyurethane binder and 0.3-0.5 parts by weight of defoaming agent for 10-30min at room temperature, adding 1.5-2.0 parts by weight of associated polyurethane rheological assistant, stirring for 30-45min, adding 5-10 parts by weight of hand feeling agent, stirring for 20-30min, and filtering and discharging to obtain the product. The adhesive is applicable to pure cotton, dacron and chinlon shell fabrics.

The embodiment of the invention discloses a method and a system for processing retail oil receipt data. The method comprises the following steps that: a crane position card reading apparatus reads an oil extraction request and a controller corresponding to the crane position uploads the information of the identified oil extraction card to a monitoring server; the monitoring server determines whether the information of the oil extraction card is matched with stored oil extraction order information, if the information is matched, the monitoring server responses to the oil extraction request and issues an oil supply instruction to the controller corresponding to the present crane position according to the information of the oil extraction card; otherwise, the monitoring server sends feedback information of refusing oil supply to the controller corresponding to the present crane position; and the controller corresponding to the present crane position uploads the matching result, the feedback information of the oil supply operation process or the feedback information of refusing oil supply, and the acquired state information of the present crane position to the database of the monitoring server for storage through a serial port thread. Therefore, the state monitoring of the oil supply equipment, as well as the match between the retail oil operation service data and the state data of the oil supply equipment are realized, as a result, the management of the service data and the equipment becomes convenient.

The invention discloses a storage battery protecting device of a solar or wind power generation system. The storage battery protecting device is used for overcoming the defect that the traditional storage battery with higher voltage grade cannot be protected due to overcharge and voltage over-discharge. The storage battery protecting device consists of a storage battery voltage overcharge protection circuit , a storage battery voltage over-discharge protection circuit, a voltage-stabilizing power supply circuit, a storage battery and an LED illumination lamp. The charging voltage is automatically cut off when the charging voltage exceeds the highest tolerant voltage of the storage battery; and the load is automatically cut off when the discharge voltage exceeds the lowest tolerant discharge voltage. The invention is applied to the solar or wind power generation system, ensures that the storage battery works in a normal state, improves the reliability of the system and prolongs the service life of the storage battery to maximum extent.

The invention discloses a method for separating and purifying curdlan by use of a flocculant. The method comprises the steps of dissolving curdlan fermentation broth or a crude curdlan product in an alkaline solution, adding the flocculant to settle microbial bacteria and insoluble impurities, adding acid in supernatant after separation to neutralize to form curdlan neutralization gel, filtering and concentrating by using an ultrafiltration membrane to obtain the curdlan neutralization gel, adding water to wash and desalt, finally dewatering and drying through an organic solvent to obtain a high-quality curdlan product. The dry purity of the product exceeds 95%, the gel strength is increased to 950-1200 g / cm<2>, and the performance is stable. The flocculant is selected from one or several of polyacrylamide, bentonite and chitosan, and is preferably sodium bentonite. Compared with the existing extraction technology, the extraction and purification process disclosed by the invention has the advantages that the product performance is improved, the solvent consumption is decreased by 80%, and the energy consumption is greatly saved.

The invention discloses a radiobiological functional experiment box which comprises a box body and matched fixing supports. The box body comprises a box rear plate structure, a box bottom bin structure, a three-dimensional fixing substrate structure, a sterile sleeve opening structure, a box chamber, box side plates and an incident center point. The matched fixing supports comprise an in-vitro cell experiment fixing support, an insertion piece fixing support, a clamshell type fixing support and a limb end locating type fixing support. Functions of the radiobiological functional experiment box include irradiation, anatomy, injection, temporary rearing and the like, the coverage of use objects is wide, sterile operation and ingenious fixing of irradiated portions can be achieved, and it is guaranteed that experimental subjects keep awake and alive. Multiple animals can be fixed and irradiated at the same time, so that specific operation time of experiments is shortened, and a dose is reduced. The radiobiological functional experiment box is reasonable in design, convenient and safe to operate, environmentally friendly and high in practicality and universality.

The invention provides a production method of porcine transmissible gastroenteritis virus by utilizing a bioreactor. The method comprises the following steps: 1) preparing monolayer subculture cells; 2) preparing virus seed for porcine transmissible gastroenteritis virus production; 3) preparing a cell suspension from the monolayer subculture cells prepared in the step 1), and inoculating into a bioreactor to carry out adsorption culture on the subculture cells in a microcarrier in the bioreactor; 4) inoculating the virus seed prepared in the step 2) at the inoculation amount of 2 to 5 percent when the subculture cells grow to 80-90 percent of the microcarrier, the empty bead rate is lower than 5 percent, the full bead rate is more than 80 percent and the cell count is over 3-5*10<6> per mL, and performing virus adsorption culture; and 5) harvesting virus fluid when over 80 percent of the subculture cells on the microcarrier have pathological changes. The method can be used for solving the problems of low production efficiency, unstable product quality and low virus titer, so that the unit vulture titer of the virus can be improved by 5 to 10 times, the quality and yield of vaccine can be comprehensively improved, and the safety of vaccine is improved.

Charging methods and electronic devices are provided. According to an embodiment, provided is a charging method for an electronic device having a plurality of operating modes. The method may comprise: detecting an operating mode of the electronic device; utilizing a first charging mode corresponding to a first operating mode to charge the electronic device when the first operating mode is detected; and utilizing a second charging mode corresponding to a second operating mode to charge the electronic device when the second operating mode is detected.

The invention relates to a sulfur tail gas super-gravity desulfurization device and process thereof. The sulfur tail gas super-gravity desulfurization device comprises an alkali liquid storage tank and a super-gravity machine; the device utilizes alkali liquid to desulfurize sulfur tail gas, and a unique super-gravity machine structure is provided; in the structure, a hollow rotary shaft with a fluid channel is formed in a shell in a manner of penetrating through the middle axis of the shell, and a sleeve with a gas channel function sleeves the hollow rotary shaft; meanwhile, a rotary channel, which is communicated with a filling region and is provided with a spiral channel, is also formed on the basis; fluid passes through the hollow rotary shaft and then self rotation of the fluid is realized through the rotary channel, and then the fluid enters the filling region; the liquid is crushed and torn into small liquid drops under the action of a centrifugal force of liquid and is in sufficient contact with liquid reverse-flow small bubbles, and a phase interface, which is rapidly updated, is provided; crushing and tearing mixing of the fluid and gas is further realized by utilizing the self-rotation under a rotary state; the sufficient degree of gas-liquid contact is improved, and furthermore, the better sulfur tail gas desulfurization effect is obtained.

The invention discloses a forced closure construction method for the vault of a steel tube arch bridge mounted in a cable-stayed buckling and cantilevered assembly mode, which comprises the steps thatit is determined that closure is conducted within a time period with the relatively stable temperature by observing the temperature and the change condition of the size of a closure opening for consecutive days; and the size of the closure opening at the set temperature is comprehensively researched and determined through the structural stress state monitored on site in combination with a software simulation calculation result and design requirements. Firstly, the overall line shape before closure is adjusted through a buckling system in a large cantilever state; then a closure opening fine adjustment device is adopted for forcibly and accurately adjusting the size of the closure opening, and a temporary locking device is adopted for locking part of the closure opening in time; then closure short steel pipes are mounted and welded on the unlocked part; and finally, the temporary locking device is detached, and closure short steel pipes are mounted on the rest part. Forced closure canbe achieved through a simple device and field operation, it is guaranteed that the stress state of the arch bridge after closure is matched with a design target, the closure is guaranteed to be in a bridge line shape, and the long-term service life of the bridge is prolonged.

The embodiment of the invention discloses a synchronous control method of an absolute authorization value and a channel state parameter and relevant equipment. The method comprises the steps of calculating a target system frame number and a target subframe number of a channel state parameter in a target channel through a delayed sending offset value introducing the channel state parameter, a timing offset value of the frame of a target channel relative to the frame of a main public control physical channel, and a system frame number and a subframe number of an enhanced special channel absolute authorization channel subframe where an absolute authorization value to be sent to a UE exists, and sending the channel state parameter on the subframe indicated by the target system frame number and the target subframe number of the target channel. As the delayed sending offset value introducing the channel state parameter is low, the transmission delay difference between the target channel and the enhanced special channel absolute authorization channel is reduced, and the synchronous property of the absolute authorization value and the channel state parameter is improved.

The invention provides a liquid drop digital PCR chip, which comprises a chip body. One or more liquid drop generation units are arranged on the chip body and each comprise a liquid injection pond, aliquid drop generation cavity, a liquid drop flat-spreading cavity and an oil injection pond which communicate sequentially, after the liquid drop generation units are fully filled with oil phase reagents, PCR reagents flow out from the liquid drop generation cavities through the liquid injection ponds, then a plurality of liquid drops are formed, and the multiple liquid drops are flat spread in the liquid drop flat-spreading cavities in a single-layer mode. The liquid drop digital PCR chip integrates liquid drop generation and single-layer liquid drop flat-spreading functions, the chip is directly placed in a PCR instrument, thus the liquid drops in the chip can be subjected to PCR reaction, the generated liquid drops do not need to be transferred again, the state of the liquid drops is better maintained, and PCR is facilitated; and the liquid drops are flat spread in thea single-layer mode, the liquid drops are not overlapped, subsequent detection is convenient, the detection efficiency is improved, and the detection accuracy rate is increased.