78results about How to "Meet the job" patented technology

The invention relates to a thermal management system for a pure electric vehicle, which is characterized in that it includes an electric drive system and a charger cooling circuit, a power battery cooling circuit, a power battery charging heating circuit, a passenger compartment heating circuit and a passenger compartment refrigeration circuit; The electric drive system and charger cooling circuit includes radiators, fans, kettles connected by pipelines, the electric drive system and charger cooling water pump installed in the circuit, as well as the motor controller and DCDC, as well as the charger and motor. The radiator realizes liquid-gas heat exchange to cool the heat dissipation components. Improve the environmental adaptability of electric vehicles, the power performance in high-temperature environments, the durability of key components, and the energy utilization efficiency of the entire vehicle.

The invention relates to a cloud server based method and system for delivering and receiving express as well as a cloud server based intelligent express locker. A Bluetooth 4.0 module is integrated on the intelligent express locker; when a courier arrives to the intelligent express locker, the intelligent express locker recognizes a hand-held terminal of the courier through Bluetooth positioning, arrival of the courier is affirmed, and the courier operates the intelligent express locker through the hand-held terminal and completes express storage work; when a receiver reaches the intelligent express locker, the intelligent express locker affirms arrival of the receiver through a location identification code, and the receiver operates the intelligent express locker through the hand-held terminal and completes pick-up of the express. According to an express operation method, express storage and pick-up can be operated on the hand-held terminal, no key is arranged on the intelligent express locker, and multiple couriers / receivers can store and pick up express simultaneously at the location of the same the intelligent express locker without interference.

A multifunctional binocular vision sensor of welding robot and relative marking method comprise a camera, a dimming filtering system, an aerating system, a reflector system, and a mounting support, while the camera, aerated system and the dimming filtering system and the reflector system are all fixed on the mounting support, the camera, aerated system, a dimming filtering system, and reflector system are vertically arranged at one side of a welding gum from up to down, the camera and the dimming filtering system are coaxial. The invention also provides relative marking method, while the invention can meet the demands of guiding, welding seam track and quality control in welding process, with high accuracy and effect.

The invention relates to an intelligent express delivery and receiving method and system and an intelligent express cabinet. A Bluetooth 4.0 module is integrated to the intelligent express cabinet. When a courier reaches the intelligent express cabinet, the intelligent express cabinet identifies the handheld terminal of the courier through Bluetooth positioning and confirms that the courier reaches the intelligent express cabinet, and the courier operates the intelligent express cabinet through the handheld terminal to complete the storage of to-be-delivered objects. When a recipient reaches the intelligent express cabinet, the intelligent express cabinet identifies the handheld terminal of the recipient through Bluetooth positioning or location identification codes and confirms that the recipient reaches the intelligent express cabinet, and the recipient operates the intelligent express cabinet through the handheld terminal to complete object taking. The intelligent express delivery and receiving method and the intelligent express cabinet have the advantages that storage of the to-be-delivered objects and object taking can be operated on the handheld terminals, no buttons are disposed on the intelligent express cabinet, multiple couriers / recipients can perform storage of to-be-delivered objects and object taking at the intelligent express cabinet at the same time without mutual influence.

The invention discloses a differential dual-band dual-polarized filtering antenna applied to a 5G Sub 6GHz base station system. The antenna comprises upper-layer and lower-layer dielectric substratesand four metal columns connecting the upper-layer and lower-layer dielectric substrates; the upper-layer dielectric substrate 1 is provided with a metal radiation patch, and a metal floor 2 is arranged on the upper surface of the lower-layer dielectric substrate and a metal feeder is printed on the lower surface of the same; the dual-band filtering property of the gain is acquired through slottingthe metal radiation patch and introducing a stepped impedance type open circuit branch knot into the metal feeder. The differential dual-band dual-polarized filtering antenna has the advantages of being simple in structure, easy to machine, relatively wide in resonant bandwidth within radiation band, relatively good in dual-band filter response, stable in gain and directional diagram, relativelylow in cross polarization, relatively high in port isolation, and easy to be integrated with the differential circuit. The differential dual-band dual-polarized filtering antenna can be applied to the5G Sub 6GHz base station communication system, and is particularly suitable for + / -45 degree dual-polarized base station antenna system of two bands: 3.3GHz-3.6GHz and 4.8GHz-5.0GHz.

The invention relates to a load increasing container flat wagon body applicable to running on a Thailand meter-gage railway. The load increasing container flat wagon body is characterized by comprising a middle beam assembly, two side beams, two end beam assemblies, two sleeper beam assemblies, four single-lock cross beam assemblies and two double-lock cross beam assemblies, wherein the two side beams are arranged in parallel on the left side and the right side of the middle beam assembly respectively and form a longitudinal beam of the body together with the middle beam assembly; the two end beam assemblies are arranged at the two ends of the longitudinal beam respectively and are transversely connected with the longitudinal beam respectively; the two sleeper beam assemblies are arranged on the longitudinal beam inside the two end beam assemblies respectively and are connected with the longitudinal beam respectively; and the four single-lock cross beam assemblies and the two double-lock cross beam assemblies are divided into a left group and a right group which are symmetrically arranged between the middle beam assembly and the side beams on the inner side of the sleeper beam assemblies respectively, and are transversely connected with the middle beam assembly and the side beams respectively. Through the load increasing container flat wagon body, the dynamic performance of a vehicle at the running speed of 100Km / h can be improved, the manufacturability can be improved, the hidden trouble in manufacturing quality can be reduced, the cross beams, the side beams and a locking device can be rationally arranged, the stressing condition of the body can be improved, and the service life of the vehicle can be prolonged.

The invention provides a non-contact intelligent distribution device based on WebService and a design method of the device. The non-contact intelligent distribution device comprises local intelligent distribution terminal equipment and remote portable equipment, wherein the local intelligent distribution terminal equipment comprises a microprocessor, a WebService module, a wireless communication module and peripheral equipment; the remote portable equipment comprises a WebService client terminal and a network communication module; and the local intelligent distribution terminal equipment and the remote portable equipment share data through a wireless network between the wireless communication module and the network communication module. The requirements of easiness in operation, high efficiency in working, safety in implementation, data accuracy and the like in the process of polling and maintaining the intelligent distribution terminal equipment by operators are satisfied. The difficulty of developing application programs on different operation system platforms is lowered, the product development cycle is shortened, the possibility of creating more benefits for enterprises is improved, and the stability of a system is enhanced.

The invention discloses an automatic assembling and rivet pressing method for a cupboard hinge. By arranging a rotating plate part, a triangular plate installing part, a stacked piece installing part, a pull strip installing part, a long nail installing part, a hydraulic pipe installing part, a short nail installing part, a rivet pressing part and a control part and controlling the other parts to act coordinately through the control part, all parts of the hinge can be automatically assembled and pressed in a riveting manner, the production cost is saved, and quality and efficiency are improved. The invention further discloses an automatic assembling and rivet pressing device for the cupboard hinge, and the automatic assembling and rivet pressing device for the cupboard hinge implements the method. The overall structure is reasonable in design, maintenance is easy, the needed operational capacity and the ergonomics requirement are met, and work has the characteristics of being fast, stable and accurate. Defects of a traditional machining manner are compensated for, mechanical and automatic scientific and technological production is achieved for an original complicated manual operation manner, the production efficiency is substantially improved, the production cost is effectively controlled, and the product quality is powerfully guaranteed.

The invention discloses a set-top box and a standby control method thereof. The set-top box comprises a switch, a power supply unit and a converting circuit, wherein the switch comprises a master chip with a plurality of units; the power supply unit is used for directly outputting voltage to the units, which are related to the standby state, in the master chip and used for outputting voltage to the units, which are not related to the standby state, in the master chip through the switch; the converting circuit is used for changing the voltage output by the power supply unit according to the width of an output impulse of the master chip; the master chip is used for switching off the switch when the set-top box is to be standby and for adjusting the width of the output impulse; and when the system is aroused, the switch is switched on, and the width of the output impulse is restored. The invention can further reduce the power consumption of a main board in the standby state under the premise that the functions of normal working and standby arousing of the set-top box are met.

The invention relates to a displacement and force test integrated sensor, comprising a force sensor, wherein the force sensor is in connection or contact with a tested member; the upper end of the force sensor is connected with a guide post through a guide sleeve; the upper surface of the guide post is connected with an upper end cover; a working spring is arranged between the upper end cover and the guide sleeve, and is used for transmitting force or displacement caused when the working spring is compressed, and working force when the guide post contacts a base of the guide sleeve to the force sensor. According to the displacement and force test integrated sensor, by using the unique structure test principle of the sensor, displacement is combined with the force sensor, so that force and displacement can be detected reliably, conveniently and accurately at the same time and the same point.

The invention discloses a multifunctional personal intelligent bodybuilding system, which comprises a hardware part and a software part, wherein the hardware part comprises a multifunctional intelligent bodybuilding chair and / or a detachable intelligent dumbbell device which can be independently used; and the software part comprises an embedded system module, mobile phone software, desktop software and a cloud system module which are matched with the multifunctional personal intelligent bodybuilding system. The personal intelligent bodybuilding system not only can replace a normal seat and a lounge chair but also can achieve the effective use of fragmented time to conduct various bodybuilding projects without the occupation of an additional space, and moreover, the bodybuilding system can acquire, record, store, analyze, synchronize, share and display bodybuilding data, so as to better adapt to living and learning working environments and modes of modern people.

The invention provides a community health service system. The community health service system comprises a working end and a cloud system platform; the working end is used for providing medical equipment and medical inquiry service for a user; and the cloud system platform is used for controlling the working end to rent and sell medical equipment to the user and communicate with a medical institution for the user to obtain related medical services. The idea of a wireless communication system, terminal equipment, cloud health management and a service mall is introduced, the system collects basic information of a user, objectively collects body indexes of the user through a multi-terminal mode in the using process, builds a private exclusive electronic file, provides online family doctor consulting service through a voice and video mode, and improves the user experience. Disease auxiliary diagnosis and treatment services are provided, a health assessment report is formed and perfected into personal medical records, references are provided for offline treatment, a health management scheme is intelligently provided according to a deep learning algorithm, one-to-one exclusive health management services are provided according to personal requirements, and management intervention is performed on personal health conditions.

The invention discloses a green self-compacting concrete and a preparation method thereof. The preparation method comprises the following steps that: according to a solid particle accumulation way and a compressible accumulation model, calculating the accumulation compactness of a binding material system, an aggregate system and a mixed material system; obtaining a pre-selected binding material combination, an optimal sand ratio and a volume ratio of a pre-selected material system to the aggregate system; according to the compressive strength requirement of the green self-compacting concrete and the accumulation compactness of the binding material system, determining a mass ratio of water to the binding material system, and calculating the specific mixing amounts of the binding material system, the aggregate system and the water; according to the specific mixing amount of the binding material system, determining the mixing amount of water reducing agent; and evenly stirring and mixing to obtain the green self-compacting concrete. By use of the green self-compacting concrete, from the perspective of solid particle accumulation, the property of raw materials which are practically selected is considered, the compressible accumulation model is combined to optimize the accumulation compactness, and the use amount of the binding material is obviously lowered.

The invention provides a Method for rapidly detecting a sulfonylomocznik compound added in hypoglycemic medicines, health products and foodstuff and applications thereof. The method comprises selecting a tested sample of once taking amount, adding 3ml dichloromethane, shaking out to dissolve, stewing for a moment, and filtrating; selecting 2ml of filtrate, adding 10mg or 20mg of vanillin solid , then adding 2ml of concentrated sulfuric acid solution, heating for 1min in a micro boiling water bath until an upper dichloromethane layer is completely volatilized; and cooling the solution to room temperature, slowly adding 5ml of ethanol, immediately observing color change of a liquid separation layer and an upper layer solution, slightly shaking up if the liquid separating layer changes purple, and determining that sulfonylomocznik compound is added when the liquid separation layer and the upper layer solution change blue. The method and a used kit have advantages of low analysis cost, strong anti-interference capability, no need of special equipment, high sensitivity, obvious easy observation and judgement of chromogenic result, and high correct rate of examination conclusion, and are suitable for on-site rapid detection.

The invention provides a self-holding solenoid valve and relates to a solenoid valve. The self-holding solenoid valve comprises a valve body, a valve element, a sliding connecting rod and an electromagnetic coil, wherein a connecting rod slide way, a piston slide way and a valve cavity are arranged in the valve body; a fluid outlet output is arranged on a wall body of the piston slide way and a fluid inlet input is arranged on a wall body of the valve cavity; the valve element is in a hollow piston structure; a through hole is formed in the side wall of the upper part of the piston structure; an upper sealing ring and a lower sealing ring are arranged on the outer side of the middle wall body of the piston structure and on the outer side of the lower part wall body of the piston structure; an iron magnet is arranged in the upper end body of the sliding connecting rod; the sliding connecting rod is connected with the upper end of the valve element; the valve element is arranged in the piston slide way; the sliding connecting rod stretches into the connecting rod slide way; an isobaric cavity is formed by a piston slide way space above the upper sealing ring; the valve cavity is communicated with the isobaric cavity by a fluid channel and a through hole in the valve element; the electromagnetic coil is mounted at the periphery of the wall body of the connecting rod slide way. According to the self-holding solenoid valve, valve switching-on / off operation can be smoothly carried out without overcoming the pressure of fluid; a valve seat is not arranged in the valve body so that the structure of the solenoid valve is simple.

The invention discloses a solar energy and wind power combined power generating device, which consists of fan blades, a generator, an accumulator battery pack and a bracket, wherein a plurality of groups of fan blades are arranged on the bracket, which is vertical to a bottom surface, by an outer sleeve and the generator is connected with the outer sleeve; the fan blades are formed by assembling and mounting small fan blades with leaflets, the lateral surfaces of the small fan blades are connected mutually to form a flat-plate fan blade; the small fan blades comprise frames and the leaflets which are connected with the frames by one end of each of rotating shafts; and the surfaces of the leaflets are photovoltaic components and the output ends of the photovoltaic power generating components are connected with the accumulator battery pack. The solar energy and wind power combined power generating device has the following advantages that: the wind direction is not required to be found, the wind power can be used maximally and the solar energy is complementarily used for generating power; the structure is simple, the cost is low, the solar energy and wind power combined power generating device is favorable for production, transportation, manufacturing, installation, maintenance and disassembly, and the using efficiency of the wind force is maximally improved; and the solar energy and wind power combined power generating device can meet the requirements on different working occasions and production, save the energy and reduce the emission and is environmentally friendly and convenient in large-scale production and popularization.

The invention discloses a main and standby equipment intelligent converter including a DC stabilized voltage supply, a state monitor, a single-chip microcomputer and an intermediate relay output control circuit. The DC stabilized voltage supply of the intelligent converter provides a stable working voltage for the intermediate relay output control circuit and a single-chip microcomputer circuit; an input terminal of the intermediate relay output control circuit is in series connection with an output interface of the single-chip microcomputer; an output terminal of the intermediate relay output control circuit is connected to an equipment switch circuit; the single-chip microcomputer obtains equipment fault trigger signals, timed trigger signals and power-off trigger signals in real time to control connection of different contacts of two intermediate relay output circuits so as to further control working state switching between main and standby equipment and realize fault switching, timed switching and power-off switching between the main and the standby equipment; phenomena that the main and the standby equipment can not be used due to fault and aging resulted from being unused for a long time are prevented; and normal and safe operation of the equipment are guaranteed.

The invention discloses a white light emitting diode (LED) chip and a preparation method thereof. The white LED chip comprises a blue LED chip with a vertical structure and a yellow LED chip from which a substrate is removed, wherein the blue LED chip and the yellow LED chip are bonded together through a transparent conductive adhesive; an N electrode is formed on the lower surface of the blue LED chip with the vertical structure; and a P electrode is formed on the upper surface of the yellow LED chip from which the substrate is removed. The preparation method of the white LED chip comprises the following steps of: preparing the blue LED chip with the vertical structure and the yellow LED chip; connecting the yellow LED chip together with the blue LED chip through the transparent conductive adhesive; removing the substrate and a buffer layer from the yellow LED chip; manufacturing the P electrode on a P-type limiting layer of the yellow LED chip from which the substrate is removed; and evaporating electrode metal on the lower surface of a substrate of the blue LED chip to form the N electrode so as to obtain the white LED chip. The white LED chip prepared by the method can directly emit white light, and has the advantages of long service life, high efficiency, stability and the like.

The invention provides a focusing lamp which comprises a lamp shell, a big reflecting cup, a small reflecting cup coaxially arranged in the big reflecting cup in the same direction, and a light source extending from the axle center of the big and small reflecting cups. An adjusting rod parallel with the axis of the big and small reflecting cups is also fixed on the lamp shell; one end of the adjusting rod extends out of the lamp shell, and the other end of the adjusting rod is provided with an adjusting block in threaded fit with the adjusting rod; when the adjusting rod rotates, the adjusting block can axially move along the thread on the adjusting rod; and the small reflecting cup is fixedly connected on the adjusting block. In the invention, the small reflecting cup is placed on the adjusting block in threaded fit with the adjusting rod, the adjusting rod is rotated so that the adjusting block performs linear transmission on the thread of the adjusting rod and drives the small reflecting cup to linearly move along the axis to change the focusing state of the lights on the inner ring, thus, good condensation and floodlighting effects can be achieved, and the requirements on short-distance work lighting and long-distance projection lighting are met. The focusing structure has the advantages of simple structure, stable transmission and good focusing effect.

The invention discloses a color-temperature-adjustable intelligent electric lamp and an intelligent adjusting method for the color temperature of an electric lamp, and belongs to the technical field of smart home. The technical problem that in the prior art, the color temperature of an intelligent electric lamp cannot be adjusted to meet demands of people in work and life is solved. According to the scheme, the intelligent electric lamp comprises a light emitting module, a temperature sensor, a humidity sensor, a clock and a controller; by arrangement of the temperature sensor and the humiditysensor, the environment temperature and environment humidity can be detected in real time, and the corresponding temperature information and humidity information are provided; by arrangement of the clock and the controller, the current time is called by the controller, color temperature values corresponding to various time periods are calculated, thus, the intelligent electric lamp can output different color temperatures in the various periods in a day, and demands of a user in work and life in the various time periods in a day are met.

The invention discloses a valve core component of an automatic control valve, and relates to a valve component. The valve core component consists of a valve seat, a ring wall, a valve plate, a connection rod and a bottom cover, wherein the valve seat is arranged in the inner cavity of the valve body and adopts a rotating body structure; the lower end opening of the valve seat forms a sealing surface; an upper valve cavity is formed in the inner space of the valve seat and is communicated to a fluid output connection opening; the ring wall is arranged below the valve seat; the upper end opening of the ring wall surrounds the periphery of the lower part of the valve seat; a flow guide opening is formed in a space between the ring wall and the valve seat; a lower valve cavity is formed in the inner space of the ring wall; a fluid input connection opening is communicated to the lower valve cavity through the flow guide opening; the valve plate is arranged in the lower valve cavity and is positioned below the flow guide opening; a sealing corresponding surface matched with the sealing surface on the valve seat is arranged on the upper end face of the valve plate. The valve is switched on by down flow of a fluid medium and is switched off by down pressure of the fluid medium, so that the valve core component can save electric energy, works reliably and is long in service life.

The invention belongs to the technical field of railway tunnel lining construction, and discloses a railway tunnel lining construction method based on medium and high fluidity concrete. The railway tunnel lining construction method based on the medium and high fluidity concrete specifically comprises the steps of firstly clearly knowing working performance requirements of the medium and high fluidity concrete; then proposing performance requirements of raw materials; then proposing requirements of equipment and facilities of a mixing station; then proposing requirements for transportation of the concrete; and finally proposing requirements for pouring, vibration and maintenance of the concrete. The railway tunnel lining construction method based on the medium and high fluidity concrete caneffectively overcome the technical defect caused by the poor pumpability of pumped concrete, not tight compaction, poor dispersion of the concrete, the high strength fluctuation, low internal reinforcement density and restriction of a formwork working window in the prior art.

The invention discloses a telephone recording method and a telephone recording system. The telephone recording method comprises the steps that: if a mobile switching center emulation MSCe determines that at least one of a calling user and a called user has subscribed to a telephone recording service, the MSCe triggers a service-to-service control point SCP intelligent platform and connects a callto the SCP intelligent platform; the SCP intelligent platform returns the call to the MSCe after inserting an access code before a called number; the MSCe sends the call to a recording platform by means of the access code; the recording platform triggers an interactive voice response IVR recording process; the recording platform changes a calling number and / or the called number; and the recordingplatform sends the call to an IMS domain of an IP multimedia system, and a called route is completed by the IMS domain. The telephone recording method and the telephone recording system can provide bidirectional telephone recording preservation service for contracted customers, so as to meet the needs of an enterprise for recording management and recording evidence preservation of work phones or mobile phones of employees, thereby avoiding telephone contradiction and telephone default risk.

The invention is suitable for the technical field of motors, and discloses a motor and a manufacturing method thereof. The aforementioned motor comprises a rotor which comprises a rotor iron core and magnetic steel. There are multiple sets of magnetic steel arranged at the external side of the rotor iron core. The rotor iron core is provided with groove positions which are inwardly recessed from the external surface of the rotor iron core to a rotor. The groove positions are arranged between adjacent magnetic steel. The bottom part of the groove positions is closer to the center of the rotor in a way of being relative to the bottom surface of magnetic steel. The aforementioned manufacturing method comprises the following steps that a stator and the rotor iron core with the groove positions arranged at the external side surface are prepared; positioning strips are arranged in the groove positions; and magnetic steel is adhered at the external side of the rotor iron core, and the side surface of magnetic steel and the side surface of the positioning strips are enabled to be adhered. According to the motor and the manufacturing method thereof, the groove positions are arranged on the rotor iron core, and relatively high magnetic resistance is generated at the groove positions so that resistance to demagnetization of magnetic steel can be substantially enhanced when high current is inputted to the motor at high temperature. Besides, the motor is great in performance and long in the service life.

The invention relates to a video-recording switching component of a microscope. The video-recording switching component comprises a spacing ring, a bridging ring A and a bridging ring B which are arranged concentrically and are connected in sequence, wherein one end of the spacing ring is sleeved and fastened on the periphery of the root of an eyepiece inserting slot of the microscope, and the other end of the spacing ring is sleeved with an inner side end A of the bridging ring A; an eyepiece of the microscope is placed into the bridging ring A through the inner side end A of the bridging ring A; an outer side end A of the bridging ring A and an inner side end B of the bridging ring B are sleeved together and can rotate relative to each other; an outer side end B of the bridging ring B is provided with a hollow stud capable of being connected with video recording equipment or a video recording equipment fixing device; and after the hollow stud is connected with the video recording equipment or the video recording equipment fixing device, an opening of the hollow stud is over against a camera of the video recording equipment and forms an optical positioning relationship with the camera, so that the camera can conveniently record images in the eyepiece. The switching component disclosed by the invention adopts an afocal light path design, does not contain any lens component, totally obtains light reflection of a shot target from the eyepiece, and has the advantages of simple structure, low cost and clear imaging.

The invention discloses a quickly cooled long-life conical rotor motor, belongs to the technical field of motors, and solves the problem that in the prior art, a conical rotor motor is prone to generating a large amount of heat, so that the conical rotor motor is difficultly quickly cooled. The quickly cooled long-life conical rotor motor comprises a shell and a rotating shaft. The rotating shaftis arranged inside the shell. A stator is connected onto the inner wall of the shell. The inner cavity of the stator is conical. A rotor is mounted on the rotating shaft, and is conical. A front end cover is mounted at the front end of the rotating shaft. The quickly cooled long-life conical rotor motor is characterized in that a fan brake wheel is connected with the rear end part of the rotatingshaft; an angle end heat conduction head is connected to the shell around the fan brake wheel; a brake cooling device is connected with the rear end of the shell; ventilation blades are mounted in thebrake cooling device; and a liquid cooling pipe is connected with the brake cooling device. The quickly cooled long-life conical rotor motor is good in cooling effect, fast to cool, stable and reliable in operation, and long in service life.

The invention discloses a quartz tuning fork gyroscope gauge outfit screening and testing device, which comprises a tool shell structure (2), a gauge outfit installation support (12), a measurement and control circuit (4), a vibration reduction assembly, a locking assembly, a round hole socket and a flexible metal belt. The quartz tuning fork gyroscope gauge outfit (1) is installed on the gauge outfit installation support (12) through the locking assembly, and the gauge outfit installation support (12) is in signal connection with a power supply of the measurement and control circuit (4) through a metal belt (6). The gauge outfit installation support (12) is fixedly connected with the tool shell structure (2) through the vibration reduction assembly. A hole is formed in the position, corresponding to the gauge outfit outer lead, of the meter head installation support (12), a round hole socket is arranged in the hole, the gauge outfit lead is inserted into the round hole socket, and thelead end of the round hole socket is connected with the measurement and control circuit (4) through a flexible metal belt. The device is used for screening the quartz tuning fork gyroscope gauge outfit, interference errors of testing are effectively restrained, and the testing efficiency is improved.

The invention discloses self-compacting concrete based on an ultrasonic concussion technology and a preparation method of the self-compacting concrete. According to the method, stone powder byproducts generated in the machining process of a quarry are selected; sisal fibers and stone powder are applied to the self-compacting concrete; the working performance and the mechanical strength of the self-compacting concrete can be remarkably improved through the synergistic effect of the sisal fibers and the stone powder after the sisal fibers are modified through ultrasonic oscillation. Surface treatment is performed on the sisal fibers, ultrasonic oscillation, is performed; water and an additive are added to prepare a mixed solution; the mixed solution is stirred and oscillated, so that particles can be uniformly dispersed, so that the characteristics of the material are exerted to the greatest extent; and the finally obtained sisal fiber-stone powder self-compacting concrete can meet the flowability required by application to engineering, and the excellent mechanical property and strength are also ensured.

The invention discloses an activation device and method for a long-term-storage and human intervention-free maintenance-free device battery. The activation device comprises an alternating activating circuit, a safety protection circuit and a single-chip microcomputer; the alternating activating circuit comprises a plurality of groups of activating circuits; each activating circuit group comprisesat least one activating circuit; each activating circuit comprises a switch tube, a bias resistor, a load resistor and a battery to be activated; the grid electrode of the switch tube is connected with the single-chip microcomputer; the bias resistor is connected between the grid electrode of the switch tube and the source electrode; and the drain electrode of the switch tube is connected with theload resistor and the battery to be activated in series. The single-chip microcomputer controls the activating circuits of each group to perform timing conversion so as to realize alternating activation, so that the activation of the to-be-activated batteries is realized. The device is reasonable in design and ingenious in concept, the load capacity of the battery is improved, and on the premisethat the normal work of the single-chip microcomputer is not affected, the problem in activation of the long-term-storage and human intervention-free maintenance-free device battery is solved.