64results about How to "Realize dissemination" patented technology

The invention discloses an afterburner integrated with a stabilizer and a worm wheel rear rectification support plate. A combustion part in the afterburner is integrated with a worm wheel rear load-bearing framework; the worm wheel rear rectification support plate is integrated with an inner culvert flame stabilizer, and cooling air is fed; a fuel oil supply pipe and a fuel oil nozzle are arranged in the rectification support plate; main fuel oil is transversely sprayed out from two sides of the support plate; and duty fuel oil is sprayed out from a groove on the rear surface of the stabilizer to form a duty flame. A pneumatic appearance of an outer culvert flame stabilizer is designed as a V-shaped bluff body, and the cooling air is fed into the outer culvert flame stabilizer; a fuel oil pipeline is arranged in the outer culvert flame stabilizer; the main fuel oil is transversely sprayed by a baffle plate nozzle; and the duty fuel oil is sprayed out from a groove on the rear surface of the outer culvert flame stabilizer. An annular flame stabilizer is arranged between the inner culvert flame stabilizer and the outer culvert flame stabilizer, so that functions of the stabilizer and a flame coupler are realized in a circumferential direction. The internal parts of the afterburner are integrated, so that the part utilization efficiency is improved, and the engine thrust-weight ratio is increased.

The embodiment of the disclosure discloses a video information sharing method and device. The method includes the following steps: a server receives description information, sent by a first client, of a video; and the description information is sent to a second client which has a friend relation with the first client so that the second client plays the video according to the received description information. In the method, the server is capable of sending description information, sent by a last terminal, of a video to another terminal so as to realize spread of the description information from one terminal to another terminal and thus spread of the video information is no longer limited between the server and the terminals and playing conditions of videos can also be timely shared by the terminals so that a pushing and sharing mechanism of the video information between the terminals is formed, a faster spreading speed is brought for the video information and the utilization rate of video resources is improved significantly.

An interrupt-tolerant traffic information spreading prototype system based on Android is divided into three layers. Firstly, the hardware interface layer is responsible for point-to-point communication between vehicles and used for collecting traffic information and geographic information. V2V communication is achieved by adopting the Wifi-Direct technology, and then a self-organizing network is built. Secondly, a network layer is responsible for forwarding and caching traffic messages and analyzing and repackaging the messages. The DTN technology is introduced in, the traffic information is spread in a vehicle network through a storage-carrying-forwarding routing strategy, and the communication interrupt problem caused by link topological structure dynamic changes of the vehicles is effectively solved. Thirdly, an application layer is used for packaging, analyzing and displaying the traffic messages. On the basis of a subscription and publication mechanism of message content, a message delivery destination is selected more reasonably, network loads caused by message copy are reduced, and user experience is optimized through message filtering.

The invention relates to a photo bomb transmission method without time-space widening using photon crystal, which comprises following steps: determining aperture size, the aperture is needed which can superpose self-collimation area of equifrequency graph and zero group velocity dispersion area of group velocity dispersion graph according to photon crystal dispersion relation equifrequency graph and group velocity dispersion graph; perforation, adopting monocrystalline silicon material, perforating the monocrystalline silicon using electron beam exposure and ICP etching technology, to form periodically arranged air round aperture array of square crystal lattice or triangular crystal lattice, the aperture being above-mentioned size. The invention provides a convenient, energy-saving and brand-new means for accomplishing photon bomb transmission, also provides a basic medium material for optical signal transmission and processing, which will be widely used in field of optical integration, optical transmission and optical chip and signal processing.

The invention discloses a video instance segmentation method and system based on an inter-frame relationship, and belongs to the field of video processing, and the method comprises the steps: obtaining a target Mask R-CNN network and a target FlowNet network through end-to-end training; sequentially acquiring each frame of image in the to-be-processed video, judging the type of each frame of image, if the type of each frame of image is a key frame, performing instance segmentation by utilizing the target Mask R-CNN network, otherwise, acquiring a corresponding key frame, and performing instance segmentation by utilizing the video instance segmentation model; wherein the video instance segmentation model is used for performing instance segmentation on the key frame by using a target Mask R-CNN network, and the video instance segmentation model also uses a target FlowNet network to calculate a flow field and a scale field between the key frame and the non-key frame, propagates pyramid features of the key frame to the non-key frame according to the flow field and the scale field, and performs instance segmentation on the non-key frame according to the features of the non-key frame. According to the method, the speed of video instance segmentation can be increased while high-quality instance segmentation is completed.

The invention discloses a cage type multi-shaft optical system mounting rack and relates to an optical system mounting and adjusting mechanism, for solving the problem that the conventional optical element mounting rack is not applicable to multi-optical axis systems. When the mounting rack is used, guide rods, optical element mounting racks and support columns are assembled together as required; the guide rods sequentially pass through guide rod mounting holes of a plurality of optical element mounting racks, so as to achieve the multi-shaft optical system structure; when 45 degrees reflection is formed in a light path, the support columns can be fixed on one optical platform and penetrate through optical element mounting holes of one or more optical element mounting racks, and spreading of the light along the direction perpendicular to the optical platform is realized. As the heights and the direction of all the shafts of the mounting rack can be flexibly adjusted, the mounting rack can be easily used together with other devices or systems of different heights, the optical system is compact in structure; establishment of the multi-shaft optical system in a plane and the establishment of the multi-shaft optical system in a space are achieved. The mounting rack is applicable to establishment of multi-shaft optical systems.

A composite graphite material comprises 70-100wt% of expandable graphite, 0-30wt% of a graphene-like material and 0-30wt% of carbon nanotube, wherein the bulk density of the graphene-like material is 0.15-0.3g / cm<3>, and the granularity of the graphene-like material is 50-300 meshes. The invention also relates to an application of the composite graphite material as a heat wave conversion material. The composite graphite material has a very high heat wave conversion efficiency at a low temperature of 10-50DEG C, uses the directional heat conduction performance of graphite, and also has the advantages of high heat conduction efficiency, fast speed and low cost; and the composite graphite material can realize bidirectional low temperature conversion of infrared ray wave and heat energy as a heat wave conversion material, and realizes heating and refrigeration in spaces.

The invention discloses an on-chip integrated cascade amplification semiconductor laser. The on-chip integrated cascade amplification semiconductor laser comprises a ridge type area, an on-chip DBR grating structure, a tapered type area and an epitaxial waveguide; the DBR grating structure is arranged on the ridge type area, the ridge type area is a ridge type waveguide structure, the tapered typearea is a gain waveguide structure; the epitaxial waveguide has a first-order ladder thickness; the ridge type area is arranged at a thin side of the epitaxial waveguide, the tapered type area is arranged at a thick side of the epitaxial waveguide, and the ridge type area and the tapered type area are cascaded. The laser of the design can more sufficiently utilize the tapered type area gain in comparison with a laser amplification way of traditionally utilizing the tapered gain structure; the base model feature is maintained when the mode volume is extended based on the iso-luminous flux principle, the optical quality of the near diffraction limit laser is guaranteed, and the brightness is greatly improved.

The present invention provides a massage system for a vehicle seat comprising a plurality of inflatable air cells arranged in a series of subsequent air cells (1, 2, 3), a supply line structure (10, 12; 10a, 12a) from and to each of the plurality of air cells, a pump (14) for supplying air under pressure to the supply line structure, a control or switch unit for controlling the operation of the pump, venting means for venting the supply line structure, means for controlling air flow to and from the air cells to provide a sequential inflation / deflation along said series of air cells, characterized in that said means for controlling air flow are provided by a plurality of flow restrictors (R1, R2, R3) having reduced flow cross-sections, said flow restrictors are arranged in such a manner that between each pair of subsequent air cells (1, 2, 3) in said series of air cells (1, 2, 3) a flow restrictor is disposed in the supply line structure such that the flow resistance from the pump and the venting means to any air cell in said series of air cells (1, 2, 3) is increasing along said series of air cells such that the air cells are inflated in sequence along said series of air cells upon the pump supplying air under pressure to the supply line structure, wherein the flow restrictors are dimensioned such that the delay time between a cell reaching 80% of its volume fill capacity to the next subsequent cell in the series of air cells reaching 80% of its volume fill capacity is between 0,5 s to 30 s, and are deflated in sequence along said series of air cells when venting said supply line structure by said venting means.

The invention discloses a daylight source based indoor communication modulation device, communication method and system. First of all, through a voltage signal module, an electrode and an electro-optical effect module connected in sequence, to-be-transmitted data are generated into a voltage signal according to set modulation depth and bias; then, the voltage signal is applied to the electro-optical effect module, and modulation is performed on daylight emitted into a room or an indoor illumination source via the electro-optical effect module; and a photosensitive device, a trans-impedance amplifier and a signal processing module at a receiving device end receive and process; according to the scheme provided by the invention, as the modulation can be performed on natural light emitted intothe room directly via the electro-optical effect module arranged on a door and a window, the daylight can be directly used in indoor communication; and thus, while illumination is implemented in an intelligent adjustment room, daylight used as a ground noise in an existing wireless visible light communication scheme is utilized as a communication light source, thereby improving the communicationefficiency; and the daylight source based indoor communication modulation device, communication method and system can be compatible with the existing wireless visible light communication scheme.

The invention provides a method for preventing coal mine tunnel floor type rock burst and belongs to the technical field of coal mine safe mining. The method for preventing coal mine tunnel floor typerock burst comprises the following steps that impact-hazard areas of different grades are divided, and prevention areas where rock burst prevention needs to be conducted are determined; a number of drilled holes are formed along the longitudinal direction in two sides of prevention area tunnel floors respectively; explosive charge is conducted in bottom-breaking blasting explosive segment, and blasting is conducted; expansive cement is injected into a first hole-sealing cement segment, and holes are sealed; yellow mud is poured to a yellow mud buffering zone; shearing deformation-resistant components are put into a shearing deformation-resistant component segment; and cement is injected into a second hole-sealing cement segment, and hole are sealed. By means of the method for preventing coal mine tunnel floor type rock burst, continuously increasing stress on bottom coal or soft rocks is lowered; the phenomenon of ultralow friction slippage in bottom coal or soft rock layer is reduced; the risk of occurrence of floor type rock burst is lowered; occurrence of floor rock burst can be effectively prevented; and the prevention effect of rock burst is improved.

The embodiment of the invention provides an information resource push and release method, applied to a server. The method comprises the following steps: receiving information resource push requirements from information resource providers, generating information resource release tables of corresponding release areas, and sending the information resource release tables to public mobile devices in the corresponding release areas; obtaining the information of the i area and the information of a known starting point close to the position of the public mobile device according to the information resource request received the public mobile device in the i area, determining the address information of at least one node in at least one travel departing from the known starting point, and returning the address information to the public mobile device in the i area so as to screen a release destination matched with the address information from the information resource release table, and then obtaining and displaying the information contents according to information content ID and according to the screened release destination. By adoption of the information resource push and release method, the unified display of intranets of information resources in a plurality of public places of a plurality of countries and regions in the world is realized.

The invention belongs to the technical field of medical apparatuses and instruments used in the otolaryngology department and particularly relates to a slippery object extractor used in the otolaryngology department. The slippery object extractor comprises a transparent cylinder and an elastic wire, wherein the transparent cylinder is in a shape of a transparent hollow tube, the elastic wire is made of a transparent material, the end, close to the elastic wire, of the transparent cylinder is provided with a hinge flare angle control tube, the end, away from the elastic wire, of the transparentcylinder is rotatably connected with a flare angle adjusting barrel. The front end of the transparent cylinder is provided with a flare angle control tube controlled through a flare angle control sleeve. When the slippery object extractor is used, the angle of the flare angle control tube can be changed by turning the flare angle adjusting barrel, flare angle change of the elastic wire can be achieved, the length of the elastic wire is changed through cooperation with a tightness adjusting nut, and certain support is provided through the flare angle control tube, so that the extractor is easyto control, the foreign matter taking reliability is improved, light for a treatment point is easy to supplement, outside light adjustment is not needed, and the treatment convenience and treatment accuracy are greatly improved.

The invention discloses a server and a resource sending method of the same. The resource sending method includes the steps: receiving a first data packet sent from first equipment by means of a server, wherein the first data packet at least includes resource information; according to the first data packet, generating a resource packet, and sending the resource packet to at least one second equipment or sending to the resource packet to the first equipment, wherein the source packet at least includes the resource information and the preset conditions which should be satisfied for acquiring the resource; when receiving an acquiring request sent from the second equipment through the resource packet, determining whether the acquiring request can satisfy the preset conditions; and when the acquiring request can satisfy the preset conditions, sending the resource corresponding to the resource packet to the second equipment sending the acquiring request. The resource sending method can realize platform-crossing resource broadcasting, can expand the resource broadcasting range, can improve the resource broadcasting efficiency, and can realize diversification of resource acquiring modes.

The invention relates to an annular sound field loudspeaker, being characterized in that annular magnets are arranged on the upper end face and the lower end face of a shell; and the annular sound field loudspeaker also includes an annular rail, vibrating tubes and a vibrating cavity; a conducting ring is arranged close to each of the inner ring wall and the outer ring wall of the annular rail; aconducting bar made of ferromagnetic materials is arranged in the annular rail in a sliding mode, and the two conducting rings are electrically communicated through the conducting bar; the vibrating tubes are arranged in the shell and are distributed along the radial direction of the shell; permanent magnets are arranged in the vibrating tubes in a sliding manner, and the permanent magnets are kept in airtight contact with the tube walls of the vibrating tubes during reciprocating sliding; the vibration cavity is arranged on the outer ring wall of the shell and comprises a vibrating diaphragmmade of an elastic material; and one end of the each vibrating tube is close to the annular rail, and the other end of the vibrating tube is communicated with the vibrating cavity. The annular sound field loudspeaker is novel in structure and unique in principle, can provide a balanced and full sound field in a wide range, and can effectively improve the auditory experience of the loudspeaker.

The invention relates to a lysozyme derived from phases and a gene and application of the lysozyme. The amino acid sequence of the lysozyme is shown in SEQ ID NO:1. The gene encoding the lysozyme is derived from the phages WP3 collected from deep sea. The lysozyme is subjected to heterologous expression and purification. As is detected, the optimum temperature of the lysozyme is 40 DEG C, more than 50% of vitality can be maintained within the temperature range of 20-60 DEG C, and the lysozyme has a wide acting temperature range; the optimum pH value is 6.0, more than 50% of vitality can be maintained within the pH range of 4.0-10.0, and the lysozyme has a wide acting pH range. The lysozyme has a broad-spectrum bactericidal activity, and can efficiently kill various Gram-positive bacteria and Gram-negative bacteria, excellent gene resources and enzyme resources are provided for developing lysozyme-type antibacterial products, and the lysozyme has a wide application prospect.

The invention discloses a method for tracking a call chain in a micro-service environment, which comprises the following steps of: obtaining a written byte stream in response to the start of a JAVA application program; identifying the byte stream through an HTTP Output Stream Wrapper; if the byte stream is identified as an HTTP byte stream, adding a Trace Id request header into the HTTP byte stream; and transmitting the HTTP byte stream added with the Trace Id request header to a callee. According to the method, the HTTP byte stream is identified by intercepting the java bottom TCP output datastream, and the Trace Id request header is added to the HTTP byte stream, so that the Trace Id is transmitted to a callee, and the propagation of the Trace Id is realized; and the persistence characteristic of TCP / IP is fully utilized, the identification result is stored, and the data transmission efficiency of a non-HTTP scene is not influenced.

The invention discloses an anti-pollution small-sized air purifying device for photocatalytically decomposing toxic gases. The small-sized air purifying device comprises a purifying device container, an upper cover plate, a lower cover plate, photocatalytic quartz glass fibers, an ultraviolet LED light source, a chargeable battery and a conducting wire, wherein the sizes of the upper cover plate and the lower cover plate correspond to the sizes of a top surface and a bottom surface of the container, holes are uniformly formed in the upper cover plate and the lower cover plate, the photocatalytic quartz glass fibers are distributed in the container, the ultraviolet LED light source is positioned in a central area of the upper cover plate, the chargeable battery is additionally arranged on the purifying device and provided with a switch, and the conducting wire is connected with the ultraviolet LED light source and the chargeable battery; a slot hole which is suitable for storing the ultraviolet LED light source is formed in the central area of the upper cover plate; and the ultraviolet light source is bonded with the tail ends of all photocatalytic quartz glass fibers in the container by virtue of encapsulation silica gel or photoresist and fixed in the slot hole in the central area of the upper cover plate. By utilizing inner conduction photocatalysis, the propagation process of the light is not affected by the pollution of the catalyst, the high-efficiency and long-service-life photocatalytic toxic gas decomposition and air purification can be realized, and the application prospect is wide.

The invention provides a microscope system. The microscope system comprises: a beam splitter assembly which is used for separating and projecting light in different light paths; a lens assembly whichis used for projecting light generated during observation of an observed sample after the light enters different light paths through an objective lens; a camera assembly which is used for photographing a to-be-observed sample in the field of view of a microscope, so that the camera assembly photographs a clear focused image through a first light path; an auxiliary focusing device which is used fordetermining a focal length matched with the camera assembly; and a focusing device which is configured to adjust the focal length of the image light entering the camera assembly according to the defocusing amount of a to-be-observed sample image determined by the auxiliary focusing device. The invention further provides a microscope automatic focusing method, medical equipment and a storage medium, automatic focusing can be carried out on the microscope system, a clearly focused image is shot through the first light path and is formed and output, the focusing time of the microscope system issaved, and the focusing accuracy is improved.

The invention provides a high-speed three-dimensional two-photon fluorescence imaging system and an imaging method and application thereof. The high-speed three-dimensional two-photon fluorescence imaging system comprises a two-photon microscope, a near-infrared femtosecond laser, an X-axis scanning device, a Y-axis scanning device, a Z-axis scanning device and an image recognition device; the X-axis scanning device is configured to include a resonance scanning mirror; the Y-axis scanning device is configured to include a galvanometer scanning mirror; the Z-axis scanning device is configured to include a high-speed piezoelectric scanning device, and the high-speed piezoelectric scanning device is used for achieving movement of high numerical aperture focused light spots in the Z-axis direction by vibrating an objective lens. The system is adopted and is simple and practical. Through mutual cooperation among the Z-axis high-speed scanning device, the X-axis resonant scanning mirror andthe Y-axis galvanometer scanning mirror and by means of a method for conducting three-dimensional imaging twice and optimizing a three-dimensional imaging space, the three-dimensional imaging speed isfurther increased, the problem of too low scanning speed is correspondingly solved, and the use of an acousto-optic deflection device is avoided.

The invention discloses an internet-based SaaS rural broadcasting system and method. A user terminal sends a multi-media file to be broadcasted to a management centre device; the playing priority of the multi-media file is set; a broadcasting terminal used by the multi-media file is selected; the format type of the sent multi-media file is judged; a text audio conversion module converts a receivedtext into an audio file; an image conversion processing module performs slide video processing on a received image; mixed audio configuration processing is carried out through an audio configurationprocessing module; a priority comparison module compares the playing priority of the received multi-media file; the file is coded / decoded according to the playing priority of the multi-media file; andthe coded / decoded multi-media file is sent to the broadcasting terminal selected by a user to play. By means of the internet-based SaaS rural broadcasting system and method disclosed by the invention, the rural broadcasting construction cost can be reduced; resources can be reduced; content services can enrich rural broadcasting information contents; and thus, rural broadcasting plays a due positive role.

The invention discloses a constant-temperature stereoscopic planting factory. The constant-temperature stereoscopic planting factory comprises a planting unit and a watering unit. The planting unit comprises at least one planting wall, and each planting wall comprises containers and a wall body. The watering unit comprises water outlet devices and a water supply device. The planting unit is arranged in a closed space. The water outlet devices are spray devices for spraying mist into the closed space. The closed space is filled with mist, and the mist makes full contact with matter in the closed space as a heat exchange medium, so that the temperature in the closed space is maintained suitable for plant growth; the mist makes full contact with the stems and leaves of plants surrounded by the mist and generates condensed droplets on the stems and leaves of the plants, and the droplets fall to the roots of the plants as moisture to water the plants. The stereoscopic planting mode is adopted to save the planting area, and the mist is generated to maintain the temperature in the closed space constant and supplement moisture to the plants.

The invention provides a firmware upgrading method, a firmware upgrading device, electronic equipment and a storage medium. The method comprises the steps that: equipment identity information transmitted by equipment of the same kind is obtained; whether a firmware provider exists in the corresponding equipment of the same kind is determined according to the equipment identity information; and ifit is determined that the firmware provider exists, firmware upgrading data are obtained from the firmware provider. According to the embodiments of the invention, the firmware provider is selected from the equipment of the same kind, the propagation of firmware upgrading data between the equipment of the same kind is realized; by means of a mutual propagation mode, the firmware upgrading is moreflexible, and the upgrading efficiency and the automation degree of the firmware upgrading are improved.

The invention discloses a network digital multimedia player, which receives a program requested by a code identification pen and sends digital codes so as to obtain multimedia files for playing; the network digital multimedia player comprises a storage module, a playing module, a wireless signal receiving module, a processor and a wireless network connecting module; the storage module stores a control instruction mapping table on which digital codes correspond to operating instructions; the wireless signal receiving module receives wireless digital code signals identified and sent by the code identification pen and then transmits the wireless digital code signals to the processor for processing; and by reference of the control instruction mapping table, the processor sends a control instruction to download information requested by the operating instruction from a specified download platform by a network connecting module, digital decompression processing is carried out on the downloaded and requested information by the processor and the multimedia files are played.

The invention relates to wide-color gamut and multi-primary color image and video display. In order to carry out transmission and storage compatible with a YUV format under three-primary color condition on multi-primary color video signals, sources of YUV signal components are judged through utilization of a blind recognition method, and the multi-primary color video signals of an information source end are restored from propagated YUV image components. A method for identifying YUV signal sources in multi-primary color image signals provided by the invention comprises the steps that S1, the multi-primary color image signals are propagated; S, sources of YUV signals are recognized at a receiving end; S3, compatibility with a current standard color gamut display equipment is ensured; S4, theYUV signals comprise information of a fourth primary color, and two primary colors in R, G and B; S5, the fact a current standard color gamut display can display correctly is ensured; S6, corresponding color signals are accurately displayed; and S7, criteria for recognizing the YUV signal sources are defined. The method is mainly applied to a video display occasion.

The invention discloses a mini round four-core electric connector. The mini round four-core electric connector comprises a plug component and a socket component. The plug component comprises a plug shell. A jack base, a jack and a first cable are mounted in the plug shell. A connection ring and a plug bushing sleeve the plug shell. A clamp ring is arranged at the joint between the connection ringand the plug shell. The socket component comprises a socket shell. A pin base is mounted in the socket shell. A pin is fixed to the pin base. A second cable is connected with the pin. An O-ring is arranged on a waist pad of the socket shell. Locking nuts are mounted on two sides of the socket shell. The mini round four-core electric connector shares the features of high contact density and small size with round connectors, has the advantages of high density, lightweight and microminiaturization, can be applied to severe environments with high vibration and impact, is applicable to occasions with special requirements on space and equipment lightweight, and can be widely applied to aviation and spaceflight fields and environments with large environment temperature change.

The embodiment of the invention discloses a ship body structure capable of achieving rapid quarantine and a ship, and the ship body structure comprises a parking apron which is arranged on a top-layer exposed deck of a stern; a concentrated isolation area is arranged on the top-layer passenger cabin deck in the multiple passenger cabin decks under the top-layer exposed deck, a first main vertical area is located on the stern, a channel is arranged between the concentrated isolation area and the parking apron, and the concentrated isolation area comprises a transition area and a pollution area; the transition area is one or a plurality of adjacent passenger cabin rooms close to the first main vertical area and separated from other main vertical areas in the concentrated isolation area, and a first isolation door is arranged between the transition area and the pollution area. The distance between the concentrated isolation area and the parking apron is reduced, so that epidemic prevention personnel can rapidly boarding through the parking apron and directly reach the concentrated isolation area through the channel to rapidly collect specimens and rapidly transfer materials, meanwhile, gas in the concentrated isolation area can be diffused to the outside of the ship, spreading of epidemic situations on the ship is reduced, and cross infection is avoided.

The invention discloses a smart cloud hospital system with a doctor recommendation function and a use method. The smart cloud hospital system comprises a user evaluation module, a doctor recommendation module, an over-the-counter drug recommendation module, an over-the-counter drug online purchase module and a personal health management center module. The user evaluation module is used for evaluating doctor service by a user; the user illness description module is used for describing illness of a user; the doctor recommendation module is used for calculating the matching degree between the illness state described by the user and the evaluation of the previous user, and recommending a doctor according to the matching degree; the over-the-counter drug recommendation module is used for recommending targeted over-the-counter drugs according to the illness description of the user; and the over-the-counter drug online purchase module is used for the user to purchase over-the-counter drugs online. According to the invention, a user health data management function is realized, so that a user can conveniently check own past medical history and medication details; the system can recommend the non-prescription drugs for the illness state according to the illness state description of the user, the user can directly purchase the over-the-counter drugs online through the system, and convenience is brought to the daily life of the user.