50results about How to "Guaranteed reliable performance" patented technology

The invention discloses a display panel and a display device. The display panel comprises an array substrate, a colored film substrate and an alignment mark structure. A lower alignment mark and an upper alignment mark in the alignment mark structure both comprise at least two marking units, the number of the marking units is the same, the marking units are a 0 marking unit, a 1 markingunit and an N marking unit respectively in the first direction, and after the array substrate is aligned with the colored film substrate, the 0 marking unit in the lower alignment mark is aligned with the 0 marking unit in the upper alignment mark; the width of the projection of the n marking unit in the lower alignment mark on the array substrate in the first direction is samewith that of the projection of the n marking unit in the upper alignment mark on the colored film substrate in the first direction, the distance between two projection centers of two adjacent marking units on the array substrate in the lower alignment mark is X, the distance between two projection centers of two adjacent marking units on the colored film substrate in the upper alignment markis Y, and X is not equal to Y. The device can achieve a suitable alignment function and ensure the reliability of the display panel performance.

The invention discloses a battery cell of a thermal battery for a carrier rocket. The battery cell of the thermal battery for the carrier rocket comprises an isolating powder, a heating powder, a positive electrode powder and a negative electrode powder, wherein the isolating powder consists of LiF-LiCi-LiBr ternary all-lithium electrolyte molten salt and a molten salt adsorbent; the molten salt adsorbent accounts for 50-65% of the total mass of the isolating powder. A performance characteristic that the pulse voltage drop change rates of the thermal battery in three working time periods of 5-20s, 45-55s and 65-75s are lower than 2% is achieved, and the performance reliability of load equipment on the rocket is guaranteed. Raw materials and a component preparation technology of the batterycell of the thermal battery provided by the invention are the same as those of the conventional thermal battery, so that large-scale production can be carried out under the premise of not restructuring the conventional production line and the production process is high in universality; the cost pressure is low and the economic benefits are good while model development and production tasks of a new-generation solid carrier rocket are met.

The invention relates to a pneumatic rubber scraper and a method for producing an automotive coating rubber performance test board. A linear guide rail, two brackets, a scraper cylinder and a slider cylinder are fixed on a rack, a pushing magnetic switch II, a pullback magnetic switch II, a pullback magnetic switch I and a pushing magnetic switch I are respectively fixed on the scraper cylinder and the slider cylinder, a slider on which a test board seat is fixedly arranged is placed on the linear guide rail, the slider is connected with the slider cylinder, a scraper frame is connected with the two brackets, pull ears are respectively connected with the scraper frame and the scraper cylinder, a scraper holder on which a high-speed steel scraper head is fixedly arranged is connected with the scraper frame, and a spring is arranged between the inclined plane of the scraper frame and the surface of the scraper holder. The test board is fixed on the test board seat and is coated with a layer of coating rubber, an electric switch of a slider electromagnetic valve is started, the slider electromagnetic valve moves, and the slider cylinder is pulled back at a certain speed, so that the coating rubber on the test board can be scraped by the high-speed steel scraper head. The pneumatic rubber scraper and the method for producing the automotive coating rubber performance test board are characterized in that the standardization and the consistency of the scraped coating rubber performance test board can be guaranteed.

The invention discloses an automobile gear signal structural member and an electronic gear shifter. The automobile gear signal structural member comprises a circuit board, a rotating support frame, aslide block, a sliding magnet, a fixed support frame and a rotating magnet, wherein the fixed support frame is arranged on the circuit board; the rotating magnet is rotatably arranged at the lower endof the fixed support frame; the slide block is arranged on the fixed support frame in a vertically slidable way; the sliding magnet is fixed on the slide block to slide along with the slide block; one end of the rotating support frame is connected with the rotating magnet and is used for pulling the rotating magnet to rotate, and the other end of the rotating support frame is glidingly connectedwith a position limiting type slide groove formed in the upper end of the slide block; the third end of the rotating support frame is rotatably connected with a gear sliding rod; and a rotating Hall sensor and a switch Hall sensor are arranged on the circuit board. The automobile gear signal structural member provided by the invention has the advantages of simple structure, high reliability degree, and high stability and consistency degree of gear shifting operation. By using the electronic gear shifter, the gear shifting comfort of the whole automobile, and the stability and reliability of signals are high.

An embodiment of the invention relates to the technical field of wireless communication, in particular to a simulation method and a simulation device, which are used for reflecting time-variation characteristic of signal channels on the premise of efficiency improvement and are capable of reflecting processing gain of transmission modes and algorithms such as detection algorithm. The simulation method includes: by means of dynamic pre-simulation, determining corresponding relation between a dynamic index value and a static index value which correspond to simulated scenes; according to the determined corresponding relation between the dynamic index value and the static index value, determining the dynamic index value, corresponding to the static index value, obtained by means of static simulation. By the simulation method and the simulation device, both simulation efficiency and performance of systems can be considered. Simulation efficiency is improved greatly since the simulation process is simplified and loss of the simulation performance is low. Assessment performance of dynamic simulation can be acquired according to the static simulation efficiency, so that the assessment performance is improved on the basis of guaranteeing performance reliability.

The invention discloses a rivet sleeve for titanium self-plugging rivet and a preparation method of the rivet sleeve, and solves the problems that titanium self-plugging rivets for aerospace in China rely on imports for a long time, are high in cost and are controlled by others, and breaks through the monopoly of an individual manufacturer. The titanium self-plugging rivet for aerospace is composed of a plastic deformation part and a bearing part and is made from high-strength titanium alloy, and the plastic deformation part is made from industrial pure titanium of which an alloy designation is TA1-TA4 or the alloy designation is TA5-TA10. The preparation method comprises the following steps: firstly, designing the position and length of the plastic deformation part of the rivet and the bearing part as required; secondly, calculating and weighing material powder; thirdly, paving horizontally; and fourthly, hot pressed sintering in vacuum. The preparation method provided by the invention is used for manufacturing the titanium self-plugging rivets for aerospace which is used for the field of aerospace.

The invention provides a vehicle body height sensor. The vehicle body height sensor comprises a shell and a rotor, wherein a Hall chip and a bearing are arranged in the shell; the rotor comprises a rotating shaft, a swing arm and a magnetic ring; the swing arm is connected with the rotating shaft and is connected with a vehicle body; the magnetic ring is placed on the rotating shaft; the rotating shaft penetrates in the bearing; a torsional spring which keeps the posture of the swing arm sleeves the rotating shaft; one end of the torsional spring is fixed on the rotor; and the other end of the torsional spring is fixed on the shell. The torsional spring is arranged in the shell, the normal posture of the swing arm can be always kept through the torsional spring, the posture of the swing arm includes the position and the direction of the swing arm in space, even if the swing arm is impacted and the posture of the swing arm is changed when the vehicle body height sensor is mounted, the swing arm can be reset to be in the original state through the torsional spring, the reliability of the using performance of the vehicle body height sensor can be ensured after the vehicle body height sensor is mounted, and the vehicle body height sensor has high vibration resistance.

The invention discloses a display panel, a manufacturing method thereof and a display device. The display panel comprises an array layer, a light emitting device layer, a package structure and an adhesive layer; the light emitting device layer is located on the array layer; the package structure is located at one side of the light emitting device layer which is far away from the array layer and comprises a metal oxide layer; and the adhesive layer is located at one side of the package structure which is away from the light emitting device layer; the orthographic projection of the package structure in the array layer is located in the orthographic projection of the adhesive layer on the array layer; and the orthographic projection of the adhesive layer on the array layer is greater than theorthographic projection of the package structure on the array layer. The edge of the adhesive layer does not contact with the metal oxide layer produced by an atomic layer deposition process, and therefore, the upwarp and falling off of a corresponding position due to poor bonding performance can be avoided, and the reliability of the performance of the display panel can be ensured.

The invention discloses a real estate transaction system and method based on a super account book. The transaction system comprises a login / registration module, a transaction release / revocation application module, a transaction module, a transaction information query module and a control module. The control module is connected with the login / registration module, the transaction release / revocationapplication module, the transaction module and the transaction information query module separately, so that the situation that the real estate information of other real estate transaction platforms isnot real can be fundamentally solved, and the authenticity and effectiveness of real estate data on the platforms are ensured; information is shared with a real estate department database, real-timeinformation of real estate is interacted, and the real-time performance and effectiveness of transaction are ensured; the whole real estate buying and selling process is completely communicated by thebuyer and the seller, the addition of an intermediary agency is avoided, and the contract signed through the intelligent contract is safe and irreversible.

The invention belongs to the field of laser initiating explosive devices, and particularly relates to an optical window based on a double-self-focusing lens structure. The optical window comprises anignition laser, a detection laser, an optical switch, a photoelectric detector, a first self-focusing lens, a second self-focusing lens and a sapphire transparent window, wherein the ignition laser isconnected to the optical switch through an ignition input fiber and a detection input fiber correspondingly, the optical switch is connected with the first self-focusing lens through the ignition optical fiber, the photoelectric detector is connected with the first self-focusing lens through the detection optical fiber, the second self-focusing lens and the sapphire transparent window are sequentially placed behind the first self-focusing lens, and optical axes of the first self-focusing lens, the second self-focusing lens and the sapphire transparent window are coaxial. According to the optical window, the technical defects of an existing laser initiating explosive device optical window are overcome, the laser radiation power density is avoided, a certain proportion of detection light isguaranteed to enter the detection optical fiber, the consistency of the reflectivity of the initiating explosive devices is improved, and the capability of the chamber pressure resistance of the optical window is improved.

The invention provides an electronic water pump and a casing assembly. The casing assembly of the electronic water pump comprises a stator assembly, a rotating shaft, a shaft base and a casing injection body, wherein the stator assembly is formed by overall injection molding, the casing assembly is formed by secondary injection molding, the rotating shaft and the shaft base are both embedded intothe casing injection body, and the stator assembly is wrapped in the casing injection body to form self-sealing. According to the casing assembly of the electronic water pump, the stator assembly is formed by overall injection molding and then subjected to secondary injection molding with the casing and realizes the self-sealing action with a rotor, a distance sleeve in the middle of an air gap ofthe stator and the rotor is omitted, cost of a casing material is reduced, meanwhile, the assembling process of the electronic water pump is simplified, rigidity of the stator assembly is improved, noise improvement of the electronic water pump is facilitated, operating reliability of the electronic water pump is improved, and therefore, the casing assembly of the electronic water pump in the scheme has obvious advantages in aspects of mounting process, cost and properties.

The invention provides a double-stage air replenishing compressor, a freezing and cold storage refrigerating system and a control method. The double-stage air replenishing compressor comprises a low-pressure-stage compression cavity, a high-pressure-stage compression cavity and a middle air replenishing cavity. The low-pressure-stage compression cavity is provided with a low-pressure-stage suctionport and a low-pressure-stage exhaust port. The high-pressure-stage compression cavity is provided with a high-pressure-stage suction port and a high-pressure-stage exhaust port. The middle air replenishing cavity is provided with an air replenishing port and a mixing exhaust port. The low-pressure-stage compression cavity is connected with the middle air replenishing cavity through the low-pressure-stage exhaust port in a communicating manner. According to the double-stage air replenishing compressor, the freezing and cold storage refrigerating system and the control method, when the external environment temperature is low, the system is switched into the state that a high-pressure-stage air cylinder and a low-pressure-stage air cylinder run in parallel, thus, the operating frequency ofthe compressor can be reduced while the requirements of the refrigerating capacity are met, then the phenomenon that a slip sheet and a roller in the high-pressure-stage air cylinder disengage to generate collision noise is effectively eradicated completely, and the performance reliability of the compressor is guaranteed.

The invention discloses a mobile communication terminal with a signal connection device, which is characterized in that: a device capable of connecting signals between a printed circuit board mounted with multiple chips and a functional part such as a screen display device module is provided. In the flip-type mobile communication terminal of the signal connecting device, the above-mentioned signal connecting device includes: a hinge part connecting the body part of the above-mentioned flip-type mobile communication terminal with the flip part; A plurality of fixed terminals for transmitting the above-mentioned signals; a plurality of spring terminals that maintain elastic contact with each of the above-mentioned fixed terminals and perform relative movement with the above-mentioned fixed terminals. The use of the mobile communication terminal with the signal connection device of the present invention can make the internal space of the mobile communication terminal freely available, and can also greatly reduce the risk of physical damage caused by the opening and closing of the hinge part.

The invention discloses a detection device and method for detecting installation head and an air-conditioning system control method. The detection device comprises an exhaust temperature sensor, an exhaust pressure sensor, a compressor detection system, an outlet pipe pressure sensor, an outlet pipe temperature sensor, an inlet pipe pressure sensor and a processor, wherein the exhaust temperature sensor is used for acquiring the exhaust temperature of a compressor, the exhaust pressure sensor is used for acquiring the exhaust pressure of the compressor, the compressor detection system is used for acquiring the running frequency and the suction intensity of the compressor, the outlet pipe pressure sensor is used for acquiring the outlet pipe liquid refrigerant pressure of an outdoor unit heat exchanger, the outlet pipe temperature sensor is used for acquiring the outlet pipe liquid refrigerant temperature of the outdoor unit heat exchanger, the inlet pipe pressure sensor is used for acquiring the inlet pipe refrigerant pressure of an indoor unit, and the processor is connected with the exhaust temperature sensor, the exhaust pressure sensor, the compressor detection system, the outlet pipe pressure sensor, the outlet pipe temperature sensor and the inlet pipe pressure sensor in a communicable manner. Therefore, the installation head between the indoor unit and an outdoor unit can be automatically calculated by the detection device for detecting the installation head.

The invention relates to a production method for a metal coated cable. The production method comprises the following steps: a step of unreeling, namely unreeling a core cable wire and a metal band respectively, a step of coating, namely adopting a method of curling the metal band to be a tube and continuously and lengthways wrapping to enable the core cable wire to be continuously led out, wherein the metal band is continuously and curly wrapped outside the core cable wire, after the curly wrapping is finished, a metal tube is formed on the surface of the cable wire, and a lengthways butt joint is reserved, a step of continuously welding the lengthways joint on line, namely adopting a welding method to carry out continuous on-line lengthways joint welding on the lengthways butt joint, a step of stretching, namely carrying out hole shrinkage stretching on the welded metal coated cable to enable the diameter of the cable to reach a desired size and enable the outer metal tube to be closely attached to the inner cable, a step of washing, namely carrying out degreasing washing on the stretched metal coated cable, a step of on-line annealing, namely carrying out the annealing on the metal coated cable, and a step of compound winding rolling, namely carrying out compound winding rolling on the annealed metal coated cable. The production method is suitable for manufacturing a railway penetration ground wire or a shield cable.

The invention discloses a capacity expansion method for a gigabit-level object storage bucket. The capacity expansion method comprises that: a unified management platform comprising a virtual mapping layer, a metadata center, an entry component and an operation and maintenance component is constructed; and the control planes and the data planes stored by the heterogeneous objects are managed in a unified mode through the unified management platform, and smooth switching in the expansion period is achieved. The capacity expansion method specifically comprises that: 1) the scale risk of a single cluster and a single bucket is avoided, and horizontal capacity expansion can be realized naturally; the service is not perceived during capacity expansion, and the hot switching configuration directly takes effect; 2) the performance bottleneck of a single cluster and a single bucket does not exist, and the performance reliability of the object storage service is ensured by accessing a plurality of heterogeneous object storage clusters and a virtual mapping method; and 3) the performance bottleneck of a single cluster and a single bucket does not exist, and the performance reliability of the object storage service is ensured by accessing a plurality of heterogeneous object storage clusters and a virtual mapping method.

The invention discloses a buffer circuit, an integrated circuit and electronic equipment, the buffer circuit comprises M driving units, M first switches and M second switches, and M is a positive integer greater than 1; the first ends of the M driving units are respectively connected with a power supply through the M first switches and are respectively grounded through the M second switches, the second ends of the M driving units are connected with one another to be used as the input end of the buffer circuit, and the third ends of the M driving units are connected with one another to be usedas the output end of the buffer circuit; and the M first switches and the M second switches are used for controlling the working modes of the M driving units, and the M driving units are used for amplifying signals received by the input end of the buffer circuit so as to output driving signals with the driving capacity corresponding to the working modes at the output end of the buffer circuit, andthe working mode is used for representing the driving capability of the M driving units. According to the embodiment of the invention, the EMI performance of the buffer circuit can be optimized.

The invention discloses a read-write driver circuit based on temperature sensing and a control method thereof, and the method comprises the steps: carrying out the quantification and coding of an obtained temperature signal, and obtaining temperature coding information; receiving test data and acquiring corresponding check coding information; voltage and pulse parameters corresponding to the current temperature coding information are determined according to the temperature coding-voltage-pulse initial corresponding relation; writing test data into a memory according to the determined voltage and pulse parameters; performing verification detection on the test data according to the verification coding information; if the detection is wrong, the test data is repeatedly written until the detection is accurate after the corresponding relation is adjusted according to the setting; and updating the corresponding relation between the current temperature code and the voltage and pulse parameters according to the finally determined voltage and pulse parameters. According to the scheme, the read-write parameters of the memories of the same batch and the same model at different temperatures are obtained through the preset corresponding relation table and real-time test adjustment, and excellent read-write performance is achieved on the premise that low power consumption and long service life are guaranteed.

The utility model discloses a nozzle matching part of a gas fuel injector, which comprises a needle valve and an outer needle valve body, and is characterized in that an annular sealing groove is arranged on the sealing end surface of a gas fuel conveying gas inlet on the outer needle valve body; the upper end face of the outer needle valve body is provided with an annular sealing groove and an oil seepage groove communicated with a high-pressure oil control cavity containing control oil. According to the utility model, the annular sealing groove and the oil seepage groove are ingeniously designed on the outer needle valve body, so that the gas fuel injector is effectively sealed by high-pressure control oil. According to the double-sealing structure, the sealing performance of the ejector is remarkably improved, gas leakage is effectively prevented, the working safety and reliability of the ejector are greatly improved, and a solid guarantee is provided for stable operation of an internal combustion engine. Meanwhile, the innovative design also shows the advancement and the practicability of the gas fuel injector in the technical field of gas fuel injection.

The invention discloses a battery cell of a thermal battery for a carrier rocket. The battery cell of the thermal battery for the carrier rocket comprises an isolating powder, a heating powder, a positive electrode powder and a negative electrode powder, wherein the isolating powder consists of LiF-LiCi-LiBr ternary all-lithium electrolyte molten salt and a molten salt adsorbent; the molten salt adsorbent accounts for 50-65% of the total mass of the isolating powder. A performance characteristic that the pulse voltage drop change rates of the thermal battery in three working time periods of 5-20s, 45-55s and 65-75s are lower than 2% is achieved, and the performance reliability of load equipment on the rocket is guaranteed. Raw materials and a component preparation technology of the batterycell of the thermal battery provided by the invention are the same as those of the conventional thermal battery, so that large-scale production can be carried out under the premise of not restructuring the conventional production line and the production process is high in universality; the cost pressure is low and the economic benefits are good while model development and production tasks of a new-generation solid carrier rocket are met.

The invention discloses a solar photovoltaic panel for efficient utilization of solar energy, which comprises a photovoltaic module and a frame arranged around the edge of the photovoltaic module. Thephotovoltaic module comprises a solar energy collection layer, a toughened glass layer, an anti-aging layer, a cell panel, a backplane layer and a heat dissipation layer which are laminated in turn.By setting the solar energy collection layer, the reflection of sunlight can be well avoided, and the utilization rate of sunlight can be improved. By setting the anti-aging layer, the radiation resistance and aging resistance of the solar photovoltaic panel can be improved. By setting the heat dissipation layer, the heat caused by a large amount of absorbed light energy is greatly evacuated, theperformance reliability of the solar photovoltaic panel is ensured, the degumming and other phenomena of the layers at high temperature are prevented, and the service life is increased.

The invention relates to a metal surface anticorrosion nano-coating for acid environments and a preparation method of the nano-coating, and belongs to the technical field of anticorrosion coatings. The anticorrosion nano-coating comprises a main agent, a curing agent and a diluent and is characterized in that the weight ratio of the main agent to the curing agent is 100:(15-50), the main agent comprises modified phenolic resin, modified epoxy resin with an IPN (interpenetrating polymer network) structure, nano-titanium dioxide, carbon black, barium sulfate, talcum powder, flaky mica powder, nano-aluminum oxide, nano-silicon carbide, polyaniline, rare earth materials, modified zinc phosphate, organic siloxane surface modification agents, wetting dispersing agents, defoaming agents, anti-settling agents, anti-sagging agents, dimethylbenzene and butyl alcohol, the curing agent comprises modified amine and dimethylbenzene, and the diluent comprises dimethylbenzene and butyl alcohol. The anticorrosion nano-coating has excellent acid resistance, corrosion resistance and adhesive force, and the preparation method of the nano-coating is simple, easy to operate, low in device requirement and suitable for industrial production.

The invention relates to the technical field of batteries, and discloses a high-toughness anode support and a preparation method and application thereof. The preparation method of the high-toughness anode support comprises the following steps: mixing nickel oxide, electrolyte powder, starch and rare earth aluminate, and carrying out ball milling treatment to obtain anode powder; anode powder is pressed by adopting a dry pressing method to obtain an anode support body green sheet, and the high-toughness anode support body is obtained after high-temperature calcination. The ferroelastic domain converted rare earth aluminate is added into the anode support body, so that the mechanical strength and the fracture toughness of the anode support body are remarkably improved, the fracture toughness of the cell is improved, and the electrochemical performance and the catalytic activity of the anode of the proton conductor fuel cell are maintained; and the integrity of the whole battery structure and the performance reliability of the electric pile are ensured.

The invention relates to a production test method suitable for WIFI and Bluetooth equipment, and the method comprises the steps: configuring a hot spot of a router, and enabling a WIFI module and a test tool of tested equipment to be connected with the hot spot; the Bluetooth module and the test fixture of the tested equipment are triggered through the hot spot, automatically enter a Bluetooth Mesh network and establish an adaptive network; the tested equipment and the test fixture realize information synchronization in the Bluetooth Mesh network through point-to-point and many-to-many communication mechanisms; the WIFI module of the tested device sends a WIFI test command, and the Bluetooth module of the tested device sends a Bluetooth test command; and after the test is completed, determining a test result through a prompt signal, and ending the test process. The problems of limited device connection number, high operation complexity and the like in a traditional testing method are solved, and a flexible and efficient solution is provided for multi-device parallel testing in large-scale production.

The present invention provides an AOC optical module and a charging aging method thereof. The AOC optical module includes an AOC optical cable assembly and an AOC optical transceiver module that are plugged and fixed to each other. The AOC optical cable assembly includes a housing and an optical cable assembly located in the housing. , the AOC optical transceiver module includes a base assembly, an upper cover assembly and an optical transceiver assembly, the optical transceiver assembly is located in the base assembly, the upper cover assembly includes a first upper cover and a second upper cover, and the first An upper cover and the second upper cover jointly cover the base assembly, the front end of the base assembly has a docking cavity for the housing of the AOC optical cable assembly to be plugged in, and the first upper cover is provided with It is above the docking cavity and locked and fixed with the housing. The AOC optical module of the present invention is highly efficient and high-quality, and does not need to disassemble the main part of the optical module, avoiding the risk of fiber breakage, device damage, and component drop inside the optical module, and ensuring the performance and reliability of the module after reinstalling the case.

The invention discloses electronic equipment. The electronic equipment comprises a frame body; the circuit board is arranged on the frame body; the key is movably arranged on the frame body, a first conductive part and a second conductive part are arranged on the key, and the first conductive part and the second conductive part are insulated from each other; one end of the first vibrating needle is electrically connected with the first area of the circuit board; one end of the second vibrating needle is connected with the second area of the circuit board; when the key is in a first state, the other end of the first vibrating needle is electrically connected with the first conductive part, and the other end of the second vibrating needle is electrically connected with the second conductive part; and when the key is in the second state, the other end of the first vibrating needle and the other end of the second vibrating needle are electrically connected with the second conductive part, and when the key is in the first state and the second state, the levels of the second vibrating needle are different. The use state of the key can be judged through the level of the second elastic needle, different responses can be made according to the state of the key, metal fatigue of the metal elastic sheet can be avoided, and the performance of the ECG is guaranteed.

The utility model relates to the technical field of imaging equipment, and particularly discloses handheld equipment and a focusing device, which comprise a shell, a focusing lens and a focusing component. Wherein the shell is provided with a through hole; the focusing lens is telescopically arranged on the shell along the optical axis direction; the focusing component is movably arranged in the shell, at least part of the focusing component is exposed out of the through hole, and the focusing component is connected with the focusing lens and used for driving the focusing lens to stretch out and draw back in the optical axis direction so as to adjust the focal length. According to the handheld device and the focusing device provided by the utility model, the internal space of the shell is fully utilized, the occupation of the external space of the shell is reduced, the overall size is further reduced, and thinning of the device is facilitated. Besides, the focusing component is hidden in the shell, and the focusing lens does not need to protrude out of the shell, so that the focusing lens is not easy to touch when falling off, and the performance reliability of the equipment is ensured. The integrality is high, no protruding special shape exists, the harmony and the visual sense are better, and the competitive advantage of the product is increased.

The invention discloses an auxiliary device for vascular disease treatment and relates to the technical field of vascular diseases. The auxiliary device comprises a horizontal supporting plate, wherein a base hard box is fixedly connected to the top of the horizontal supporting plate, auxiliary grooves are formed in the surface of the base hard box, supporting wheels are rotatably connected to theinner surfaces of the auxiliary grooves, a bracket supporting device is movably connected to the surfaces of the supporting wheels, a limb fixing device is fixedly connected to the right side of thetop of the bracket supporting device, and the bracket supporting device comprises an arc-shaped plate and a driving friction wheel. According to the auxiliary device for vascular disease treatment, through the arrangement of the bracket supporting device, a worker can adjust the overall treatment angle of the device only by rotating a manual handle, meanwhile, the device can be clamped and fixed in cooperation with extension of a positioning telescopic rod, the overall stability of the device is high, meanwhile, through supporting of the supporting wheels in the auxiliary grooves, the reliability of the device during operation is guaranteed, related structures are simple, and the device is easy to operate by the worker.

The invention discloses a redundancy time difference positioning method and a redundancy time difference positioning system. Piezoelectric transducers are fixedly arranged on a truncated-cone-shaped cabin section in advance for receiving redundancy signals, and a signal processing device determines signal source positions of the redundancy signals in the time difference positioning method. The redundancy time difference positioning method and the redundancy time difference positioning system can help detectors to determine specific positions of redundancy in the cabin section, facilitate removing of moving redundancy, and can help the detectors to distinguish signals of some moving parts in the cabin section and reduce analyzing time of moving redundancy signals.

The invention discloses a non-contact nuclear-grade limit switch which comprises a reed bouncing module, a socket arranged at the top of the reed bouncing module and a magnetic driving module arranged at the bottom of the reed bouncing module. The whole non-contact nuclear-grade limit switch is triggered through in and out of a magnet, manual triggering is not needed, the false triggering or non-triggering phenomenon is avoided, the requirement of the reed bouncing module for the deformation of the reed is very small, the service life of the elastic element can be very long under the condition of very small deformation, and the limit switch is of a pure mechanical structure and is convenient to use. The switching frequency can reach more than ten millions, and the linear bearing of the magnet driving module is arranged, so that the low-damping characteristic of axial movement is ensured, and the performance reliability of the product is effectively ensured.