558results about How to "In line with the development trend" patented technology

A manufacturing method of an LED array device uses LED devices with a vertical structure and a mother board, wherein the LED device is provided with a first magnetic part composed of soft magnetic metal; the mother board is provided with a second magnetic part composed of a hard magnetic material, and a base layer without magnetic insulation is arranged on a first plate surface; a driving circuitlayer including a plurality of welding pads arranged on the base layer, and the welding pads are corresponding to the second magnetic part; the LED devices are distributed on the driving circuit layer, the first magnetic part of the LED device is subjected to the acting force of the magnetic field of the welding pad on the second magnetic part, so that the LED device is arranged on the welding padin a positioning way; so that the LED device and the welding pad are bonded with each other; the base layer and the mother board are separated from each other to obtain an LED array device. This approach can quickly and efficiently transfer large amounts of LED devices to the driving circuit layer.

The invention discloses an embedded satellite-borne fault-tolerant temperature control system and a verification method thereof. The system comprises a satellite management computer, an on-satellite temperature control system and a ground monitoring and fault injection computer; the on-satellite temperature control system comprises a temperature control calculation host machine, a temperature control calculation standby machine and an environmental simulation computer; and the temperature control calculation host machine and the temperature control calculation standby machine are temperature control computers. The verification method comprises the following steps of: 1, initializing a file allocation; 2, initializing the system; 3, beginning simulation; 4, injecting and executing a fault; 5, processing redundant fault tolerance; 6, monitoring the ground and evaluating the fault; and 7, evaluating a fault model and a redundancy strategy of the temperature control system. The fault injection and the verification process of the whole running stage of the real satellite-borne temperature control system are completely realized; and the method is simple, convenient and reliable, and greatly reduces the test time and expense for the practical system.

The invention discloses a dynamic polymer material. The dynamic polymer material comprises a product obtained through reaction of the following components: at least one polyol compound containing two or more 1,2-diol motifs or 1,3-diol motifs as well as at least one phenylboronic acid compound containing two or more phenylboronic acid motifs provided with aminomethyl groups in ortho-positions. Dynamic reversible phenylborate bonds are formed through the reaction of the components and then constitute a dynamic cross-linked polymer. The polymer material has reusability and recoverability because of the dynamic reversibility of the special phenylborate bonds; besides, when the polymer material adopting a specific formula receives external force, dynamic bonds break preferentially to have energy dissipation and stress elimination functions, so that the material has good toughness. The material has broad application prospect in the fields of military space equipment, functional paint and coatings, biomimetic materials, biomedical materials and the like.

The invention discloses a composition and an application thereof in regulating intestinal flora of animals. The composition contains aloe, probiotics and prebiotics, wherein the mass ratio of the aloe to the probiotics to the prebiotics is (6 to 3 to 1)-(6 to 1 to 3). The inventor discovers that the composition disclosed by the invention can effectively promote the proliferation of useful bacteria such as bifidobacterium and lactobacilli in animal intestines, so as to effectively regulate the intestinal flora of animals; therefore, the composition can be used for preventing or treating diabetes on the basis of the effect of the intestinal flora.

The invention relates to an enzymolytic lactoprotein ferrous complex, a microcapsule iron supplement and a preparation method thereof. In the preparation method, ferrous salt is complexed with an enzymolysis product of lactoprotein, which can improve solubility of iron salt under an alkalescent intestinal condition, improves absorptivity and availability of iron and ensures a safe and pollution-free preparation process; a proper coating material is adopted for microencapsulating the enzymolytic lactoprotein ferrous complex to prepare the microcapsule iron supplement agent of the enzymolytic lactoprotein ferrous complex; the iron supplement agent can mask self-odor of the ferrous salt, prevent the ferrous iron from oxidation, gradually release Fe under the alkalescent intestinal condition to ensure high biological absorptivity and biological availability of the Fe, and has no toxic and side effect; and the enzymolytic lactoprotein can prevent and treat iron-deficiency anemia, and has physiological functions of resisting oxidation, adjusting immunity, lowering blood pressure and the like.

The invention relates to a heating fiber underwear fabric, which is characterized in that the heating fiber underwear fabric is composed of raw materials with following weight percent: heating fiber 3-25%, anti-pilling acrylic fiber 30-52%, lenzing cellulose fiber 35-40%, polyamide fiber 4-6% and lycra elastic fiber 0.5-0.15%. A processing technique of the heating fiber underwear fabric comprises: firstly, spinning the heating fiber, the anti-pilling acrylic fiber and the lenzing cellulose fiber into sirospun union yarn, then, coating the lycra elastic fiber with the polyamide fiber, weaving and forming knitted underwear fabric, dying, soaping with nonionic soft finishing agent, vertically drying, shaping, and forming finished products of the heating fiber underwear fabric. The heating fiber underwear fabric of the invention has the advantages that the heating fiber underwear fabric not only has good skin-friendly property, low pilling tendency and comfortable elasticity, but also has good warmth retention effect.

In the present invention ginkgo leaf, ginkgo epicarp and other parts as raw material are prepared to plant pesticide via drying, crushing, solvent extraction, effective component separation and other steps. The said pesticide is in oil emulsion, water emulsion, microemulsion, wettable powder and other forms. It can be used in killing various pests, including homoptera and lepidoptera pests, such as cotton leafworm, rice stem borer, cabbage moth, plant hopper, etc. and has obvious pesticidal effect, high selectivity, low toxicity, low residue, less drug resistance, etc.

The invention provides an intelligent self-service shopping method, which comprises the following steps of S1, collecting biological characteristic information of a consumer; S2, comparing the difference between the biological characteristic information and pre-stored biological characteristic information so as to determine whether the consumer has registered a shopping account or not; S3, allowing consumers to enter into a shopping area if the shopping account is already registered; S4, acquiring the basic information of the commodities in the shopping cart of the consumer in real time and generating a shopping list; S5, detecting that a consumer leaves the shopping area, and confirming the identity and the shopping account information of the consumer; S6, sending a settlement request toa remote mobile terminal of the consumer, and detecting whether the payment is successful or not; S7, allowing the consumer to leave after the payment is detected to be successful, and automatically updating the pre-stored commodity inventory data. The intelligent self-service shopping method and system can quickly complete commodity settlement, and the shopping experience of consumers is improvedto a certain degree.

The invention provides a novel plane articulated robot structure which comprises a base, a lifting seat, a first mechanical arm, a second mechanical arm and an operation spindle. The base functions in supporting and reducing vibration; the lifting seat vertically moves along a Z-axis direction under the limiting action of a lead screw and a polished shaft; the first mechanical arm is rotatably mounted on the lifting seat by taking an X axis parallel to a Z axis as a rotating center; the second mechanical arm is rotatably mounted on the first mechanical arm by taking a Y axis parallel to the X axis as a rotating center; the operation spindle is rotatably mounted on the second mechanical arm by taking an R axis parallel to the Y axis as a rotating center. The vertically moving Z axis of a plane articulated robot with four degrees of freedom moves to the base of the robot, so that the inertia of the mechanical arms of the industrial robot can be decreased by the design, stress of the mechanical arms serving as cantilever beams is improved, the running speed and control stability of the robot are effectively improved, and the working space of the industrial robot is enlarged.

The invention discloses a chip package body, which comprises a circuit substrate, at least one chip and a packaging colloid. The circuit substrate comprises a conductive pattern layer, a circuit layer, a dielectric layer and a plurality of conductive blind hole structures. The conductive pattern layer comprises a plurality of connecting pads. The circuit layer is configured above the conductive pattern layer. The dielectric layer is configured between the conductive pattern layer and the circuit layer and covers all, except the fully exposed bottom surfaces, of the surfaces of the connecting pads. The dielectric layer has a plurality of blind holes. The conductive blind hole structures are arranged in the blind holes respectively. The conductive pattern layer is connected with the circuit through the conductive blind hole structures. The chip is configured on the circuit substrate, and the packaging colloid covers the chip. The invention also discloses a method for manufacturing the chip package body and a chip package substrate.

The invention discloses a power battery composite heat management system and a method thereof. The power battery composite heat management system comprises a water tank filled with a circulating fluid, a circulating pump, a sealing cover plate of the water tank, and a battery pack array which is fixedly mounted above the sealing cover plate and is composed of a plurality of battery cells, wherein a temperature equalizing plate and a heat pipe are adhered onto the surface of each battery cell respectively, and cooing sections of the heat pipes pass through the sealing cover plate to be arranged in the circulating fluid in the water tank; a circulating fluid inlet is formed in one side end of the water tank, a circulating fluid outlet is formed in the other side end of the water tank, and a circulating fluid turbulent flow structure is arranged inside the water tank, so that the circulating fluid flows into the circulating fluid outlet from the circulating fluid inlet of the water tank in a curve flowing manner. The system and the method thereof can solve the technical problems such as heat dissipation, battery pack temperature difference reduction, battery preheating and heat cyclic utilization under different working conditions of batteries; and meanwhile, the system is compact and simple in structure and convenient in installation and maintenance, accords with the development tendency of battery heat management systems and electric automobiles, and has good application prospects.

The invention discloses a method for solving low-carbon workshop scheduling based on an improved whale optimization algorithm. The method comprises the following steps: establishing a mathematical model of low-carbon workshop scheduling; setting algorithm parameters of the improved whale optimization algorithm, and generating an initial population; calculating the fitness value of the scheduling solution in the initial population, and keeping the current optimal scheduling solution; converting the current optimal scheduling solution into a whale individual position vector; carrying out whale individual position vector iteration updating by adopting an improved whale algorithm; performing whale individual position vector iteration updating on the updated whale individual position vector byadopting a self-adaptive adjustment search strategy; and when the number of iterations reaches the maximum number of iterations, converting the whale individual position vector into a scheduling solution, and outputting the scheduling solution. The whale algorithm is optimized, and a two-stage conversion mechanism is applied to initialize a machine part and a process part respectively, so that thenumber of iterations is reduced, and the quality and the operation efficiency of a final solution are improved; an improved whale algorithm is adopted, and the convergence speed and efficiency are improved.

The invention provides a probe set and a reagent kit used for detecting pathopoiesia / susceptibility genes of congenital megacolon and relative syndromes. At most 172 pathopoiesia / susceptibility genes related to diseases can be detected at the same time, and reference can be provided for affected individual molecular genetics diagnosis, mass survey of congenital megacolon high-incidence areas, screening of high-risk affected groups in congenital megacolon family members and corresponding genetic counseling or prenatal intervention.

The invention relates to ecological type water-based synthetic leather which comprises a dry layer, a foaming layer, a bonding layer and a base material, and is characterized in that the dry layer, the foaming layer, the bonding layer and the base material are sequentially compounded in a layered way; and the dry layer, the foaming layer and the bonding layer are made from water-based resin. The product does not change the physical properties of solvent type synthetic leather, the whole leather layer structure adopts the non-toxic, harmless, safe and environment-friendly water-based material, and all the links of the whole production process are maintained to be clean and environment-friendly, so that the ecological type water-based synthetic leather is completely environment-friendly. The ecological type water-based synthetic leather saves a great deal of organic solvent, reduces the production cost of the synthetic leather, and is in accordance with the development tendency of synthetic leather industry, thus having a wide application prospect.

This invention relates to a broadband network structure of the next generation network, which applies a standard SIP to put forward a system and a method for providing multimedia opera browser, in which, said system includes: a soft switch, an applied server, a media resource server(MRS) and a database, the method includes: after the soft switch receives a call request of the calling terminal, it calls a successive called user terminal, when it judges that the called terminal is idle, it triggers the AS color ring service, then the AS gets the multimedia color data information from the database and transfers it to the MRS, which plays the opera browser to the calling user terminal.

The invention discloses a touch screen panel, which comprises a polyethylene glycol terephthalate tablet component and a glass cover plate component, wherein the polyethylene glycol terephthalate tablet component comprises polyethylene glycol terephthalate tablets; lower electrodes are formed on lower surfaces of the polyethylene glycol terephthalate tablets; the glass cover plate component comprises glass cover plates; anti-fingerprint films are coated on upper surfaces of the glass cover plates; printing-ink view windows are printed around the lower surfaces of the glass cover plates; anti-reflection layers are coated on the lower surfaces of the glass cover plates; upper electrodes are formed on the lower surfaces of the anti-reflection layers; and the upper surface of the polyethylene glycol terephthalate tablet component is adhered to the lower surface of the glass cover plate component by using an optical transparent adhesive. The invention also discloses a method for manufacturing the touch screen panel. By the invention, reflection can be reduced, the definition of a display screen is improved, and production cost is low.

The invention relates to a bamboo carbon fiber underwear fabric and a manufacture method thereof, belonging to the technical field of textiles. The bamboo carbon fiber underwear fabric consists of a lining layer and an external layer, and is characterized in that the lining layer consists of bamboo carbon fibers and cotton fibers according to the weight ratio of 15-30:70-85; the external layer consists of cotton fibers, Newdal fibers and polyurethane elastic fibers according to the weight ratio of 43-54:40-54:3-6. The manufacture method comprises that: the bamboo carbon fibers and the cotton fibers, the cotton fibers and the Newdal fibers are respectively spun into Sirospun blended yarns; the Sirospun blended yarns are interwoven with polyurethane elastic fibers to form a knitted underwear fabric; and the knitted underwear fabric forms a final finished product, namely the bamboo carbon fiber underwear fabric through dyeing, drying, sanding and shaping treatment. The fabric and the manufacture method have the advantages that the bamboo carbon fiber underwear fabric not only has good skin-friendly property, low pilling tendency and comfortable elasticity, and has functions of good odor decomposition, smell elimination and the like.

The invention discloses a novel four-degree-of-freedom articulated robot structure. The novel four-degree-of-freedom articulated robot structure comprises a base, a lifting seat, a first mechanical arm, a Y-axis cover, a second mechanical arm, and an operation main shaft, wherein the lifting seat vertically moves in the direction of a Z-axis under the limiting actions of a lead screw, a lead screw, and a guide rail pair, the first mechanical arm can rotate around an X-axis parallel to the Z-axis to be installed on the lifting seat, the Y-axis cover is installed on the first mechanical arm, bears a first Y-axis speed reduction device shaft and a second Y-axis speed reduction device shaft, and is provided with through holes for a Y-axis servo motor shaft, the first Y-axis speed reduction device shaft and the second Y-axis speed reduction device shaft to penetrate, the second mechanical arm can rotate around the Y-axis parallel to the X-axis to be installed on the first mechanical arm, and the operation main shaft can rotate around an R-axis parallel to the Y-axis to be installed on the second mechanical arm. The novel four-degree-of-freedom articulated robot structure is simple in structure, low in cost, large in operation space, and high in operation accuracy.

The invention discloses a system and method based on GIS distribution network graphic display. The system comprises a user data information recorder, a data operational unit, an information matching module, a data analyzer and a display module. The user data information recorder, the data operational unit, the information matching module, the data analyzer and the display module are sequentially connected. The method includes the steps of data information input, data operation, building of a new data storage, matching of corresponding data information, data analysis, generation of data information streams and display of the data information streams on the corresponding GIS graphs. By the adoption of the system and method, data size analysis efficiency is remarkably improved, complex chart data are converted into graphic display information easy to understand, and a distribution network is planned through a GIS through virtual image display.

The invention relates to an intelligent household microgrid system based on a technology of internet of things. The intelligent household microgrid system includes an energy system and a control platform thereof. The energy system includes a photovoltaic cell, a chopper module, an energy storage device, a rectifying module and a PCC (point of common connection) switch. The control platform includes a CPU, a storage module, a ZigBee wireless networking device (full-function ZigBee (FFD) main coordinator, a local ZigBee universal remote controller, and a reduced-function (RFD) ZigBee terminal node) and a peripheral interface. The control platform of the intelligent household microgrid system also includes a cloud computation background service system in the broad sense. The intelligent household microgrid combines intelligent grid, microgrid and internet of things technologies and one of great characteristics of the intelligent household microgrid is that a ZigBee wireless technology is introduced to the household microgrid so that the system is capable of networking flexibly. The intelligent household microgrid system is combined with a peak-valley electrovalency system to realize functions such as reliable power supplying through combination of self generation and grid power, intelligent scheduling of distributed photovoltaic power generation, intelligent charging and discharging of the storage device under different states, power bidirectional flowing between the system and the grid, real-time visualization of electricity quantity information and automatic switching of grid connection and grid isolation and the like.

The invention discloses a polyurethane resin for solvent-free crease-free microfiber mirror-surface synthetic leather. The polyurethane resin is prepared from a component A and a component B in a mass ratio of 2:1-1:2 by means of stirring and mixing, wherein the component A comprises 80-95 parts of polytetrahydrofuran glycol, 5-15 parts of chain extenders, 0.01-0.5 part of catalysts, 0.5-2.0 parts of light / heat stabilizers, 0.01-0.2 part of defoaming agents and 0.1-2.0 parts of solvent-free color paste, and the component B comprises 40-50 parts of polytetrahydrofuran glycol, 50-60 parts of isocyanate, 0.001-0.1 part of phosphoric acid and 0.01-05 part of catalysts. The invention further provides a preparation method and application of the polyurethane resin. The solvent-free crease-free microfiber mirror-surface synthetic leather prepared by the preparation method is capable of resisting normal-temperature flexing for 100 thousand times in terms of physical performance and resistant to the temperature as low as -10 DEG C and remains uncracked for 80 thousand times at -10 DEG C.

The invention relates to an imidazoline asymmetrical bi-quaternary ammonium salt. The preparation method comprises the following steps that: diethylene triamine and organic acids of octalkyl to heptadecyl react to generate alkyl imidazoline; long chain alkyl tertiary amine, hydrochloride of long chain alkyl tertiary amine and epichlorohydrin react to generate N-(3-chlorine-hydroxypropyl)-N, N-dimethyl long chain alkyl quaternary ammonium salt; and the alkyl imidazoline and the N-(3-chlorine-hydroxypropyl)-N, N-dimethyl long chain alkyl quaternary ammonium salt react. When the salt is used as a carbon steel corrosion protection acid pickling inhibitor, the salt has the advantages of easy synthesis, low-priced and easily-bought materials; because the salt is the organic inhibitor, the salt is nontoxic and unharmful, and has wide biological activity and good water solubility and can effectively inhibit corrosion of metallic matrix in the acid and excessive consumption of acid liquor; moreover, the salt also has the advantages of low consumption, high efficiency, strong sustained action capability and good application prospect.

The invention provides a post-tensioned prestressing underground diaphragm wall. A fixed end anchor plate of a fixed end anchor tool of the underground diaphragm wall is provided with a taper hole and matched with a fixed end clamping piece. A prestressing steel bar is anchored through wedge caulking of the taper hole. A fixed end anchor plate lower stress member is jointly formed by a fixed end anchor backing plate and a fixed end spiral bar. A tension end anchor tool comprises a tension end anchor plate, a tension end anchor backing plate, a tension end clamping piece and a tension end spiral bar. The prestressing steel bar penetrates through a corrugated pipe to be laid and fixed to a steel bar cage, and then the two ends of the prestressing steel bar are fixed to the fixed end anchor tool and the tension end anchor tool respectively, the periphery of the steel bar cage and the periphery of the corrugated pipe are filled with concrete to form the post-tensioned prestressing underground diaphragm wall. Meanwhile, the invention provides a construction method of the post-tensioned prestressing underground diaphragm wall. The post-tensioned prestressing underground diaphragm wall and the construction method of the post-tensioned prestressing underground diaphragm wall have the advantages that the section of the post-tensioned prestressing underground diaphragm wall is reduced by 15 %, the antiknock performance is increased by 20 %, the steel bars are reduced by 30 %, the consumption of concrete is reduced by 15 %, and the post-tensioned prestressing underground diaphragm wall conforms to the development trend of the modern building structure.

The invention discloses a preparation technology for a glass ceramics sheet. The preparation technology includes the steps that 1, SiO2, Al2O3, K2O, Na2O, CaO, MgO, F and a clarifying agent are weighed to obtain batch; 2, the batch is added into a melting furnace, the melting temperature is controlled to be 1510 DEG C-1520 DEG C, and the melted batch is clarified on the stirring condition to generate glass melt; 3, the glass melt enters a three-roll roller press to be rolled and calendered to form a glass plate; 4, the glass plate enters a roller kiln, and a glass ceramics sheet is obtained through primary nucleation, intensified nucleation and crystallization; 5, annealing, cooling, polishing and trimming are carried out on the obtained glass ceramics sheet to obtain the glass ceramics sheet product. The thickness of the glass ceramics sheet prepared through the preparation process according to the component content is 2-10 mm, the technical effect of bending resistance of the sheet in the production technical process is achieved, bending resistance and compressive strength are high, industrialization of the glass ceramics sheet is achieved, and market promotion is easy.

The invention discloses a train operation and scheduling integrated optimization method taking into consideration of subway fast and slow lines. The method comprises the following steps: analyzing regular subway line information, optimizing a plan for switching train control modes among train stations, an optimization result being input to an operation and scheduling integrated model, establishing a train operation and scheduling integrated optimization model taking into consideration of subway fast and slow lines, associating operation and scheduling of a train by using regenerative braking energy and conducting integrated research; and adopting the particle swarm algorithm in solving the model, performing solving and obtaining an operation curve and a timetable of the train, inputting the operation curve and the timetable to a simulation platform for performing simulation, and carrying out later-stage closed loop control. According to the invention, the method, on the basis of the operation and scheduling integrated research, takes actual background of subway fast and slow lines into consideration, and has profound actual significance to research on urban rail transit.

The invention discloses a flexible circuit board, a flexible LED lamp bar and a manufacturing method of the flexible LED lamp bar. The flexible circuit board comprises a first insulation layer, a second insulation layer and a circuit layer. The first insulation layer and the second insulation layer are attached to the two sides of the circuit layer respectively. The first insulation layer and the second insulation layer are respectively provided with a folding portion in the length direction. The folding portion of the first insulation layer corresponds to the folding portion of the second insulation layer in position. The circuit layer comprises a set of power lines and at least one light source line. The light source lines and the power lines are arranged on the two sides of the folding portions in a separable mode. The width of the folded flexible circuit board is smaller, so that more occasions where the flexible circuit board with the smaller width is needed are met, and the power lines and the light source lines are not bent when the flexible circuit board is folded. Due to the existence of the folding portions, folding face layers of the power lines and folding face layers of the light source lines can be prevented from tilting up along the folding portions, the folding face layers of the power lines and the folding face layers of the light source lines are easily attached together, and the wrinkling phenomenon is reduced.

The invention relates to an encapsulation structure of a fingerprint identification sensor and an encapsulation method thereof, and belongs to the technical field of semiconductor encapsulation. The encapsulation structure of the fingerprint identification sensor is characterized in that a groove is formed in the edge position of the top of a silicon substrate body, a sensor chip is arranged at the top of the silicon substrate body, and comprises a sensing element and chip electrodes arranged around the sensing element, an insulation layer I covers the surface of the silicon substrate body and an uncovered face of the groove, an insulation layer II covers the insulation layer I from the top down until an upper corner area I, a re-wiring metal layer enables electrode signals to drop to the bottom of the groove, a metal lead wire is connected with the re-wiring metal layer and a substrate, a dielectric layer is filled in an opening of the insulation layer I, a plastic seal layer seals all uncovered surface space of the silicon substrate body on the substrate, and a metal film layer is arranged on the surface of the plastic seal layer. The encapsulation structure of the fingerprint identification sensor can improve product insulating performance and reliability. The encapsulation method of the encapsulation structure of the fingerprint identification sensor uses a wafer level technology, is simple in encapsulation process, improves production efficiency, and conforms to a development trend of encapsulation industry.

A human-computer cooperative robot tooth-implant method based on augmented reality includes the following steps: (1) acquiring data; (2) carrying out three-dimensional reconstruction to obtain an oraltissue model; (3) designing a implanting scheme; (4) designing and manufacturing a positioning marker; (5) generating a manipulator off-line program instruction according to the implanting scheme; (6) allowing a patient to wear the positioning marker, and calibrating the position of a manipulator; (7) carrying out surgical operation by the manipulator according to an instruction, and adjusting according to a real-time micro motion position of a patient; and (8) allow a doctor to observe the correspondence condition between a three-dimensional implanting scheme and the actual position in the patient oral cavity from worn AR spectacles, and interfering adjustment by the man-machine fusion technique. The invention provides the human-computer cooperative robot tooth-implant method and a human-computer cooperative robot system based on augmented reality, wherein the method and the system can realize superposition of the three-dimensional implanting scheme and the patient oral cavity and automatic tracking and positioning, realize surgical operation by a robot and allow the doctor to intervene timely.

The invention provides a dielectric medium of a ceramic capacitor, which is prepared from the following raw materials in percentage by weight: 54 to 91 percent of BaTiO3, 2 to 13 percent of SrTiO3, 2 to 15 percent of BaZrO3, 0.05 to 1 percent of Nb2O5, 0.03 to 1.0 percent of CeO2, 0.1 to 1.0 percent of ZnO, 0.03 to 1.0 percent of Co2O3, and 2 to 15 percent of BaSiO3. The invention also provides apreparation method of the dielectric medium of the ceramic capacitor. The dielectric medium of the ceramic capacitor has high dielectric constant and high withstand voltage, generates no pollution tothe environment in the process of preparation and use, and can reduce the cost of the ceramic capacitor, so the dielectric medium is suitable for preparing monolithic ceramic capacitors and multilayer chip ceramic capacitors.