187results about How to "Reduce the probability of leakage" patented technology

The embodiment of the invention discloses a right management method for user identification card and a terminal unit, which relates to the filed of communication, and solves the problem of the prior art that the safety of the SIM unlocking method is low and availability is poor. The technical of the invention comprises: acquiring the fingerprint information inputted by the user; comparing the inputted fingerprint information and the fingerprint template; extracting the personal identification code corresponding to the fingerprint template through the correspondence relationship of the inputted fingerprint information and the fingerprint template; and unlocking the user identification card thorough the corresponding personal identification code. The technical scheme provided by the embodiment of the invention can be applied to various electronic products such as cellphones containing SIM card, data card and the like.

The embodiment of the invention provides an information processing method and electronic equipment. The method comprises the following steps: receiving information; judging whether the information is private information or not; if the information is private information, storing the private information into a private information database, wherein received non-private information is stored in a common information database, and the private information database is different from the common information database. According to the information processing method and the electronic equipment, the probability of leakage of the private information can be reduced, and the storage security of the private information in the electronic equipment can be improved.

The invention relates to a dynamic password identity authentification method on the basis of a random character group, which includes the steps that: (1) a user password is selected and set up from a cipher character group composed of K characters; (2) a memory matrix of M multiplied by N is set up and each square of the memory matrix has a different character; (3) when an authentification request is transmitted, a computer or server generates a generator matrix corresponding to the memory matrix randomly, the cipher character group is arranged in the square of the generator matrix randomly, all the characters contained in the squares are all different to each other; (4) according to the specific position MN of the first digit character of the user cipher in the generator matrix, the user can find a character from the MN square of the memory matrix corresponding to the generator matrix and use the character as a first digit character of the dynamic password; thus a dynamic password can be formed in the similar way; (5) the authentification is finished: the computer or server judges if the dynamic password input by the user is correct. The invention has the advantages of simple principle, higher safety performance and easy generalization and so on.

The invention discloses a user terminal network authentication method and device, which are used for solving the problems that equipment operation and maintenance cost is high and that the authentication efficiency and the authentication safety are not high in an authentication process of the user terminal access network. The method comprises the steps as follows: a first terminal encrypts identity information of the first terminal based on a physical layer sharing secret key generated through a channel characteristic parameter between the local and a base station and sends the encrypted identity information to a network server; a user authentication vector generated by the network server based on the identity information is received; network authentication is completed based on the user authentication vector; and the network server is triggered to notify other user terminals of the same group as the first terminal to perform network authentication by adopting the user authentication vector. By the adoption of the method, the terminal can encrypt the identity information of the terminal based on the physical layer sharing secret key generated through the channel characteristic parameter between the local and the base station and transmit the identity information; thus, the probability of terminal identity information leakage is reduced.

The invention discloses a data transmission method and device based on key authentication. The method comprises the following steps: sending digital certificate information to a client by a server, and sending summary information of the digital certificate information and a combined unique identifier value including a handshake information context information identifier and a digital certificate information identifier to a key server; determining a private key corresponding to the digital certificate information by the key server according to the summary information, signing the combined unique identifier value by using the private key, sending a signature value to the server, and sending the signature value to the client by the server; and after the client verifies that the signature value is valid by using a public key corresponding to the digital certificate information, carrying out data interaction by the client and the server. According to the data transmission method provided bythe invention, the problem of the server that the private key must be deployed at the front end and the client executes TLS 1.3 handshaking is solved, and the private key and a certificate are deployed on different equipment, so that the server cannot read private key contents, thus the probability of private key leakage is reduced, and the safety of the private key is guaranteed.

The invention relates to a liquid propellant conveying system of a blow-down rocket engine, belonging to the field of the conveying system of the rocket engine. The conveying system comprises a conduit head (1), an electric explosion valve (2), an orifice (3), a flow control valve (4), a pressure increasing valve (5), a filling valve (6), a connecting pipeline and an electric explosion valve control circuit. The manipulation gas of the flow control valve (4) is the gas in the conduit head (1); the flow control valve is in the closing state before being started; the flow control valve (4) is started by the electric explosion valve (2); and the flow control valve (4) can control the flow after being started; when the pressure of the conduit head (1) falls, a valve core (8) is controlled to move by the pressure of the conduit head (1) so as to increase the valve opening and regulate the orifice size of the valves, thereby achieving the goal of flow stability; the orifice can prevent the valves from being opened, thereby improving the system reliability. The propellant conveying system has simple structure and low cost.

The invention relates to a frequency conversion air conditioner for new energy passenger car. A frequency conversion compressor is arranged at the middle part of an air conditioner, the two sides of the compressor are provided with a control unit and a power system; a condensation component is arranged at the front end of the air conditioner, the middle part is a condensation fan, and condensers are arranged at the two side in an inversed V shape; an evaporation component is arranged at the rear end of the air conditioner, the middle part is a return air inlet, the two sides are provided with an evaporation fan, and an evaporator is arranged between the evaporation fan and the return air inlet; the front end of the frequency conversion compressor is communicated with a four-way change valve by virtue of a check valve, the rear end is communicated with the four-way change valve by virtue of a gas-liquid separator, the four-way change valve is respectively connected with the condenser and the evaporator, and the condenser is connected with the evaporator by virtue of a drier and a bidirectional expansion valve; all pipelines are connected by adopting a welding way, all the electric components are connected and arranged in an overhead type structure, and only a power supply is externally connected with a control cable. The invention has the advantages that structure is compact, occupying space is small, and energy consumption is low, thus being applicable to new energy passenger car.

The invention discloses a novel cast iron plate-type air preheater. The air preheater provided by the invention is mainly characterized in that a cast iron heat transfer plate comprises a center plate, an upper fin, a lower fin, a connecting plate, four quadrangular prisms, two upper shift sideboards and two sinking sideboards, the upper shift sideboards are connected with the sinking sideboards by virtue of the quadrangular prisms, the vertical direction and horizontal direction of each quadrangular prism are respectively provided with a drawbar hole, and the two drawbar holes are not communicated; paired drawbar holes at the horizontal direction of the four quadrangular prisms are coaxial, and multichip cast iron heat transfer plates are laminated up and down; and the laminated positionof the two adjacent cast iron heat transfer plates is horizontally rotated 90 degrees, and multiple drawbars are connected with the cast iron heat transfer plates into a whole in series by virtue of the drawbar holes of the multichip cast iron heat-transferring plate. The air preheater provided by the invention is suitable for being used in flue gas waste heat recovery systems of various industrial furnaces and boilers, thereby ensuring the leakage rate of the air preheater to be less than 1%.

The invention belongs to the field of medicament synthesis, and relates to Danshensu derivatives with a structure in the following formula, a synthesis method thereof, and application thereof in pharmacy. The synthesis method adopts a chiral synthesis method to synthesize the Danshensu derivatives with stable structures in high yield, in particular derivatives of dextrorotatory Danshensu with high optical purity. Through experiments of animal models with hypoxic myocardial cells, results show that the Danshensu derivatives can reduce LDH leakage of the hypoxic myocardial cells, improve the activity of hyperoxide dismutase in the cells, inhibit generation of a product of lipid peroxidation, promote the expression of anti-apoptotic gene bcl-2 mRNA and inhibit the expression of pro-apoptosisgene bax mRNA and apoptotic gene caspase-3mRNA; and the results prove that the Danshensu derivatives have an effect of protecting hypoxic cardiac muscle and can be used for preparing medicaments for treating ischemic heart disease.

The invention discloses a method and equipment for controlling information activation detection. The method comprises the following steps: determining a detection signal and a modulation constellation point of the detection symbol and control information; and according to the detection signal and the modulation constellation point of the detection symbol and the control information, judging whether control information is borne or not. According to the method and the equipment, the virtual detection probability of the control information can be effectively lowered.

Disclosed are an integrated electro-hydraulic steering actuating unit and a control method thereof, wherein an externally inputted control signal controls a rotation direction and a rotational speed of a bi-directional servo motor, and the bi-directional servo motor drives a protruding direction and a protruding speed of an actuating cylinder. The control valve block assembly is used for maintaining the movement position of the oil cylinder when the two-way servo motor is stopped, and can be used for dissipating heat from the oil returning side oil to the closed oil tank when the oil cylinderis extended, so as to reduce the temperature of the oil. The control valve block assembly is capable of limiting the working pressure of the actuating cylinder when the temperature or load of the actuating cylinder changes suddenly, and is used for setting the maximum working pressure of the bidirectional gear pump, limiting the output power of the bidirectional gear pump, and preventing the bidirectional servo motor from being overloaded. The control valve block assembly can realize the communication between the two chambers of the actuating cylinder to be in the floating working state, whichimproves the safety of the integrated electro-hydraulic steering actuating unit under the emergency working condition.

The invention discloses a shell resonator with impact resistance. The shell resonator comprises a hemispherical resonator body, a substrate for packaging and vertical interconnection, a plurality of non-planar electrodes embedded in the substrate, and a glass packaging shell cover for vacuum packaging. The hemispherical resonator body is composed of a shell body and a self-aligning column located at the central axis in the shell body. The inner surface of the hemispherical resonator body is coated with a conductive layer, and the conductive layer is connected with a lead-out structure for leading-out through a conductive wrapping layer. The non-planar electrodes are embedded in the substrate. The lead-out structure and the non-planar electrodes conduct leading-out on the back face of the substrate through a lead of a conductive lead-out layer. Vacuum packaging is achieved for the substrate and the glass packaging shell cover through bonding. The diameter of the hemispherical resonator body is 1-30 mm. The vacuum packaging and vertical interconnection of the shell resonator can be achieved, and meanwhile the environment robustness and impact resistance are improved.

The invention belongs to the technical field related to a submersible, which discloses a buoyancy regulation system based on a two-way seawater pump, The buoyancy regulating system comprises an adjustable ballast tank, two valve groups and a two-way seawater pump, wherein the two valve groups are a first valve group and a second valve group respectively; the two-way seawater pump is formed with anI port and an II port; the first valve group is connected with the adjustable ballast tank and the I port; the second valve group is connected with the II port and is communicated with seawater; Thebuoyancy regulation system adjusts the volume of sea water in the adjustable ballast tank adaptively through the positive and negative reversal of the two-way seawater pump, thereby realizing the buoyancy regulation; the valve group includes a one-way valve and balance valve connected in parallel; The one-way balance valve comprises a valve body, a one-way valve assembly and a balance valve assembly, wherein the one-way valve assembly and the balance valve assembly are respectively embedded at opposite ends of the valve body, and the one-way valve assembly and the balance valve assembly are mutually valve seats. The invention simplifies the structure, reduces the volume, and further reduces the complexity and cost of the buoyancy regulation system of the submersible.

The invention discloses a stop valve. The stop valve comprises a valve body provided with a first valve port and a second valve port; the two valve ports are communicated through a medium channel inside the valve body. The stop valve also comprises a valve rod which is arranged in a valve body inner cavity of the valve body and is used for disconnecting or connecting the medium channel and a sealing part used for circumferentially sealing the valve rod and the valve body; the sealing part is fixedly arranged on the valve body. The sealing part between the valve rod and the valve body is fixedly arranged on the valve body, so that when the valve rod moves in the valve body inner cavity in the valve body, the sealing part is always positioned in the stationary state and cannot move together with the valve rod in the moving process of the valve rod, the problem that the sealing part and the valve rod move spirally together to cause abrasion and flanging in the prior art is solved, the leakage of a refrigerating medium in the moving process of the sealing part is avoided, and the refrigerating capacity of refrigerating equipment is improved.

The invention discloses a metal organic framework composite nanomaterial with targeting property and pH responsiveness as well as a preparation method and application of the metal organic framework composite nanomaterial. The metal organic framework composite nanomaterial is prepared from protein-loaded ZIF-8 metal organic framework nano-particles, calcium carbonate structures wrapping the ZIF-8 nano-particles and aptamers fixed to calcium carbonate structures. The preparation method is simple and convenient to operate, and damage to protein activity is avoided. The composite nano material provided by the invention has good protein loading capacity and targeting performance, and can gradually release contents in a low pH environment. The metal organic framework composite nanomaterial disclosed by the invention can also target T cells to increase the number of intracellular anti-tumor active substances, and can be developed into a novel anti-tumor biological therapy.

The invention discloses a prefabricated laminated slab and a prefabrication process thereof, relates to a building technology, and is used for solving the problem that a common laminated slab is easyto loosen in connection. The laminated slab comprises a slab body and a connecting structure. The connecting structure comprises an embedded block arranged on the slab body, an embedded groove formedin the slab body, a connecting hole formed in the slab body, a connecting block inbuilt in the embedded block and a connecting piece used for matching with the connecting block, the embedded block andthe embedded groove of two adjacent slab bodies are embedded with each other, and the connecting piece penetrate through the connecting hole and then is in threaded connection to the connecting block. The process comprises the following process steps of: building a frame, pouring and forming, demoulding and trimming, and building and maintaining. The prefabricated laminated slab has the followingadvantages and effects that the connecting structures can be used for being connected with each other in the process that two adjacent laminated slabs are spliced with each other, so that when the laminated slabs are subjected to the action of transverse force, the laminated slabs are not prone to being separated from each other, a pouring layer poured on the laminated slabs is not prone to beingseparated, and the purpose of reducing the leakage occurrence probability is achieved.

The invention discloses an extraction method of total saponin of Radix Ilicis Asprellae and a quality detection method thereof, and the extraction method comprises the following steps: taking a medicinal material of Radix Ilicis Asprellae root or stem, adding 4-12 times volume of 60% ethanol, extracting for 1.5-2h, adding 2-10 times volume of 60% ethanol, extracting for 1.0-1.5h, filtering and merging filtrate; concentrating under reduced pressure until no alcohol taste exists, adding water, diluting crude drug with the loading concentration of 0.1-0.5g / ml, and loading a pre-treated AB-8 macroporous resin column; washing the resin column to be cleared by water, and eluting by 60-80% of ethanol; and collecting eluent of 60-80% ethanol and concentrating under reduced pressure, drying to obtain the total saponin of Radix Ilicis Asprellae. The quality detection method comprises the steps of TLC chromatograph identification and content determination of ilexoside X XIX in the total saponin of Radix Ilicis Asprellae. By using the refined technology of the invention, the retention rates of the total saponin of Radix Ilicis Asprellae and f ilexoside X XIX are improved greatly, and the obtained extract has higher purity; the obtained total saponin of Radix Ilicis Asprellae has the functions of inflammation resistance, analgesis, koortswerend, antivirus and the like; by using the characteristic saponin ilexoside X XIX as a reference sample, the accuracy is higher and the result has high reliability; and the quality detection method of the total saponin of Radix Ilicis Asprellae extract can provide a reference for quality control of the total saponin of Radix Ilicis Asprellae extract.

A material online moisture detection device comprises a (cylindrical) rotating bin (1), multiple microwave generation devices (2) arranged at the upper part of a rotating bin top cover (101) and multiple weighing devices (3) arranged at the lower part of a rotating bin chassis (102); four chambers are formed in the rotating bin chassis (102); the rotating bin (1) has four stations which are a material feeding station (a), a primary drying station (b), a secondary drying station (c) and a material discharging station (d) in sequence in a clockwise direction, wherein the four chambers are switched between the positions of the four stations in circulation. The material online moisture detection device provided by the invention has the advantages that the four chambers and the four stations work in sequence in circulation so as to guarantee that the moisture detection device can continuously detect the moisture content of materials on line in real time.

The invention belongs to the recycling utilization field of phase change heat storage materials and solid waste, and in particular relates to a mesoporous-aluminosilicate-based shaping phase change material prepared from fly ash and a preparation method thereof. Mesoporous aluminum silicate is used as a carrier of the mesoporous-aluminosilicate-based shaping phase change material, an eutectic phase change material is used as a loading substance, the mesoporous-aluminosilicate-based shaping phase change material is prepared by the following method: 1) mixing the fly ash and additives, then calcining, and quenching the calcined product; 2) performing controlled acid etching; 3) drying solid-liquid separation powder to prepare mesoporous aluminosilicate powder; 4) placing the mesoporous aluminosilicate powder in vacuum conditions, and filling with an excess molten state phase change material to obtain a mixture; 5) performing solid-liquid separation of the mixture to prepare solid powder, cleaning with a solvent, and drying to obtain the mesoporous-aluminosilicate-based shaping phase change material. Channels of the cylindrical or wedge-shaped mesoporous-aluminosilicate-based shaping phase change material prepared by the method are tapered, loading of the phase change material is more continuous, compatibility is increased, and leakage rat is reduced.

The present disclosure relates to a cone-shaped crusher. The cone-shaped crusher includes a main shaft, a mantle core assembly which is coupled to and movable up and down the main shaft, and a crushing gap control support positioned below the mantle core assembly and fixed to the main shaft . In addition, the crushing gap control support has an annular cylindrical unit extending upward therefrom and receiving a piston unit which extends downward from the mantle core assembly so that the piston unit is movable up and down in the cylindrical unit . The whole mantle core assembly formed with the piston unit moves up and down by a pressure of hydraulic oil flowing in and out of an internal space of the cylindrical unit.

An absorbent article having a thin, flexible absorbent pad that can accommodate one or two insults with a low probability of leakage. The absorbent article can be less than about 5 millimeters thick, with the absorbent pad being less than about 3 millimeters thick. The absorbent article has a low absorbent capacity of, for example, less than three times an anticipated single insult volume, or less than twice an anticipated single insult volume. The absorbent article is particularly suitable for use as a toilet training aid.

The invention provides a comprehensive energy system parameter determination method based on distributed optimization and a related device, a comprehensive energy system represented by an electric power natural gas comprehensive energy system comprises at least one processor, and the processors correspond to different energy analysis areas respectively. In other words, different energy analysis areas are processed by using different processors, so that a regional management mode can be adopted during management, and when the processors perform area regulation and control, the conditions of equipment in the areas and the conditions of line equipment connected with the different areas are considered, cooperative optimization of the whole comprehensive energy system can still be guaranteed while independent control over the energy analysis area is achieved. Compared with a unified control mode of all areas, only boundary data needs to be shared among different areas, the data sharing content is small, data dispersion processing is achieved, the probability of data leakage of the whole comprehensive energy system can be reduced, and the equipment operation safety of the whole comprehensive energy system is improved.

The invention discloses a method, device and system for obtaining network equipment performance data. The method includes the steps of: sending a first uploading instruction to network equipment in a current caching period, the first uploading instruction including a first time range of a previous caching period; and receiving performance data collected in the first time range in the first uploading instruction uploaded by the network equipment within a first preset time, and when the network equipment is judged to have successfully uploaded the performance data within the first preset time, continuing to execute the step of sending the first uploading instruction to the network equipment in the next caching period till that collection of the performance data by the network equipment needs to be stopped is judged. Through the scheme provided by the invention, after the network equipment is judged to have successfully uploaded the performance data within the first preset time, the first uploading instruction is sent to the network equipment in the next caching period, so that the first uploading instruction is not stacked in the network equipment, thereby lightening the load of the network equipment.

The invention belongs to the technical field of nuclear power safety equipment design, and specifically relates to a reverse pushing type reactor pressure vessel and reactor internals thereof. According to the present invention, a main separation plate and a secondary separation plate are welded on the bottom dome of a reactor pressure vessel, the main separation plate is positioned above the secondary separation plate, a high performance hydraulic jack is positioned on the secondary separation plate, a gradual changing type control rod is positioned on the main separation plate, the lower end of the gradual changing type control rod is inserted into the main separation plate, the upper end of the gradual changing type control rod is inserted into the top dome of the reactor pressure, an inside-reactor structure guide steel column is welded on the bottom dome of the reactor pressure vessel, the upper end of the inside-reactor structure guide steel column is inserted into the top dome of the reactor pressure, a fuel assembly tray is positioned above the main separation plate and is provided with a plurality of holes, the gradual changing type control rod and the inside-reactor structure guide steel column penetrate through the holes, the lower end of the fuel assembly tray and the upper end of the high performance hydraulic jack are connected, and a neutron absorption body is positioned in a cavity formed by the reactor pressure vessel main body, the bottom dome of the reactor pressure vessel, the main separation plate and the secondary separation plate.

The invention belongs to the traditional Chinese medicine pharmacy field, and relates to an application of leonurine SCM198 in preparation of medicines used for preventing and treating parkinson disease. According to the invention, neurotoxin 6-OHDA induces damage of nerve cells in rats, the result shows that leonurine SCM198 is capable of improving behavior changes of PD model rats, increasing the survival rate of damaged nerve cells, raising antioxidant enzyme superoxide dismutase activity, minimizing excessive generation of active oxygen species, stabilizing mitochondrial membrane potential, minimizing apoptotic cells and regulating the change level of Bax and Bcl2 gene and protein. The result proves that the leonurine SCM198 has protection effect on a PD model, and can be used for preparing medicines for preventing and treating PD.

The invention relates to an ultrasonic welding type anti-leakage beverage cup lid which comprises a lid body and a seal cover. A groove is formed in a panel of the lid body; an annular flange is formed among the side wall surface of the groove, the panel and a circumferential outline surface of the lid body; a drinking port is located in one side of the annular flange; a leak receiving cavity is located on the opposite side of the drinking port; an avoiding cavity is further arranged between the leak receiving cavity and the drinking port; the seal cover comprises a first cover plate ultrasonically welded to the edge of an opening part of the leak receiving cavity and used for closing the leak receiving cavity, a second cover plate in turnover connection with the first cover plate and capable of closing the avoiding cavity, a third cover plate extending to the drinking port from the end part of the second cover plate, and a cover plug; and a through hole communicating with an exhaust hole is formed in the first cover plate. According to the ultrasonic welding type anti-leakage beverage cup lid provided by the invention, the leak receiving cavity is closed by adopting ultrasonic welding, so that the leakage probability in the delivery process can be greatly reduced; and meanwhile, the seal cover can repetitively open or close the drinking port, and a placement space is providedfor an upper lip, so that the comfort in drinking is further improved.

The invention discloses a root key generation and isolation method for multiple systems and a root key module. The method comprises the following steps: firstly, combining feature information corresponding to a system needing to generate a key with a chip root secret key to form secret key source data corresponding to the system, and then carrying out key generation operation on the key source data to obtain system root key data corresponding to the system. In this way, the obtained root keys corresponding to all the systems can be kept independent of one another due to the fact that the generated feature information is different. By applying the virtualization design of the invention, different system root keys can be generated for different systems, and security key isolation between different systems can be effectively realized. Because each system does not need to separately call the chip root key for encryption, the usage scenario of the chip root key is almost limited to the situation that the chip root key needs to be used when only the system root key is generated. Therefore, the probability of leakage of the root key information of the chip can be reduced.

The invention discloses an air chute, relating to material conveying equipment. The air chute comprises an upper chute, a lower chute and a material cut-off device, wherein the upper chute is a trough, the lower chute is an air drain, a ventilation layer is arranged between the upper chute and the lower chute, the material cut-off device comprises a cut-off plate, a cut-off plate supporting frame and an air cylinder, the cut-off plate supporting frame is arranged at the upper end of the upper chute, the cut-off plate is arranged in the cut-off plate supporting frame in a vertical moving way, and the air cylinder is used for driving the cut-off plate to vertically move to open and close the upper chute; and a horizontal through chute is arranged on the ventilation layer on the same vertical plane with the cut-off plate, a rubber layer is covered on the upper end surface of the through chute, and the lower end surface of the through chute is provided with a baffle. The air chute is provided with the rubber layer and the baffle for double sealing, and flexible sealing and rigid sealing are combined, so that the leakage rate of products in a cut-off state is lower than 1%; and the air chute is simple in structure and lower in cost.

The invention discloses a gas-liquid vibration damping device. The gas-liquid vibration damping device comprises an inner oil storage cylinder, an outer oil storage cylinder, a piston rod and an oil hydraulic piston. An inner cavity of the inner oil storage cylinder is divided into an upper pressure cavity and a lower pressure cavity through the oil hydraulic piston. A partition plate of a lower cylinder opening of the inner oil storage cylinder is provided with a compensating valve and a circulating valve, wherein the compensating valve guides hydraulic oil between the inner oil storage cylinder and the outer oil storage cylinder into the lower pressure cavity, and the circulating valve guides hydraulic oil in the lower pressure cavity into the position between the inner oil storage cylinder and the outer oil storage cylinder. The oil hydraulic piston is connected to the position, in the inner oil storage cylinder, of the lower end of the piston rod. The oil hydraulic piston is provided with a compression valve and an extension valve, wherein the compression valve guides the hydraulic oil in the lower pressure cavity into the upper pressure cavity, and the extension valve guides hydraulic oil in the upper pressure cavity into the lower pressure cavity. The lower pressure cavity is internally provided with an upper air pressure piston and a lower air pressure piston and is divided into an upper oil cavity, a middle floating air pressure chamber and a lower oil cavity. According to the gas-liquid vibration damping device, the floating air pressure chamber is arranged additionally on the basis of a traditional double-barrel-type hydraulic damper, and impact exerted on the oil hydraulic piston can be effectively relieved.

The invention discloses a splitting box, a multi-connected air conditioning system and an operation method of the multi-connected air conditioning system, relates to the technical field of air conditioners, and aims to improve comfort during refrigeration and heating. The multi-connected air conditioning system comprises an outdoor unit, a floor heating tube set and at least one indoor unit, the multi-connected air conditioning system further comprises a liquid pipe splitter which is connected between the liquid pipe end of the outdoor unit and the floor heating pipe set, and between the liquid pipe end of the outdoor unit and at least one indoor unit, an air pipe splitter which is connected between the air pipe end of the outdoor unit and the floor heating pipe set, and between the air pipe end of the outdoor unit and at least one indoor unit, and control valves each of which is arranged on a pipeline between the air pipe splitter and at least one indoor unit, and is used for limitinga refrigerant to flow from the air pipe splitter to at least one indoor unit during heating of the floor heating pipe set. According to the multi-connected air conditioning system provided, independent refrigeration of the indoor units and independent heating of the floor heating pipe set are realized, and the comfort during refrigeration and heating is improved.