1929results about How to "Easy to use and maintain" patented technology

The method comprises: using a sensor to collect the characteristic signals; the collected signals about each kind of running state are sent to the data processing module; after processed, the signals are sent to the computer system; said computer system comprises a device database, a symptom event database, a diagnosis knowledge database; a device database and signal analysis module, a symptom acquiring module, a diagnostic reasoning module, and a diagnosis explaining module; the software of the data processing module makes data exchange; the symptom event database exchanges data with the diagnostic module, data processing module; the diagnostic knowledge exchanges the data with the failure processing module, knowledge acquiring module and data processing module.

The invention relates to a real time tracking and monitoring method of cargo based on a logistics management platform, which comprises the following procedures: the system reads the information on a bar code corresponding to the cargo via a bar code reading terminal; then, the information of bar code and other kinds of information form a cargo transportation information that can be sent to a logistics management server; the cargo transportation information is saved;, the bar code reading terminal is tracked and monitored in real time via a wireless data communication link; the time for the arrival of the cargo is predicated and calculated; and real time tracking status information related to cargo transportation is output. By adopting the real time tracking and monitoring method of cargo based on the logistics management platform, the invention realizes the real time tracking and monitoring of the cargo in the logistics system, enhances the service efficiency, ensures simple and easy operation, realizes simple application and maintenance and wide application scope, thus laying solid foundation for the further development of the logistics system.

The invention discloses a control system for direct drinking water equipment, and the control system can perform remote monitoring and operation, and is convenient to use and maintain. According to the system, a user can remotely monitor and manage the direct drinking water equipment, and a manufacturer can remotely monitor and maintain the direct drinking water equipment. The control system comprises a plurality of local equipment control modules and a remote monitoring platform module, wherein the local equipment control modules are used for monitoring the operating conditions of the direct drinking water equipment in real time, outputting data of the operating conditions, transmitting an operation control instruction to the electrically controlled execution element of the direct drinking water equipment so as to perform switching and local control on different operating conditions and can receive a remote signal instruction for operational control; and the remote monitoring platform module is used for receiving the data acquired by monitoring the local equipment control modules so as to remotely monitor the operating conditions of the direct drinking water equipment and transmitting data or instructions to the local equipment control modules so as to remotely operate and control the direct drinking water equipment. The control system can be widely applied to the field of control over the direct drinking water equipment.

A hay feeder allows a horse to eat from the feeder at a controlled speed in order to help prevent choke as well as overeating. The feeder uses a receptacle that has one or more guide posts extending between a closed bottom and an open top. A plate has first openings that each receive a respective post in order to allow the plate to slide up and down within the receptacle, the plate also having a series of second openings. Hay is placed into the receptacle and the plate is positioned on top of the hay. The horse eats the hay through the series of second openings and the plate gravitationally falls with the depleting stock of hay guided downwardly along the posts.

The invention discloses an environment-friendly water-based cleaning agent which is characterized by comprising the following components in percentage by weight: 15-60% of antirust agent, 5-20% of surfactant, 0.1-0.5% of nonferrous metal corrosion inhibitor, 0-0.5% of bactericide and the balance of water. The environment-friendly water-based cleaning agent disclosed by the invention has the beneficial effects of no toxicity or phosphorus, excellent antirust performance, favorable inter-process antirust effect, wide application range, suitability for cleaning various metals including black metal, aluminum alloy and copper alloy, no corrosion to nonferrous metal, excellent cleaning capability for oil stain with higher viscosity, long service cycle and effective range, simplicity and practicability in use and maintenance, multiple functions for efficiently removing oil, preventing rusting and the like, no harm to body health and no adverse effect on the environment.

This invention discloses a kind of wood-plastic composite materials for construction template and its preparation methods and purposes. It belongs to building materials area. Against poor toughness, small strength and high cost defects of existing technologies, the main materials of this invention are PVC resin and / or plastic (new materials or waste materials) and wood fiber powder, the second materials are calcium power PE resins, short glass fiber, then adds the assistant, through mixing, heating, agitating, extrusion to matrix and cooling to shape, cutting steps to made into templates. It can increase the strength of plate by increasing various forms of reinforced structure in the process of preparation. It can be used for construct template of concrete processing. This invention can be recycled for several times, environmental protected, save resources and of low cost; the template are wear resistant and defend worms, non-absorbent, and hard to deform, with good mechanical properties, low coefficient of thermal conductivity, anti-acid and alkali.

The invention provides a method for determining an indicator diagram of electrical parameters of a rod-pumped well and belongs to the technical field of oil production of oil fields. The method aims at achieving convenient and practical measurement of the indicator diagram of the electrical parameters of the rod-pumped well on site. The method is characterized in that top dead center moments and bottom dead center moments are determined periodically, active powers of electrical parameters of up strokes and down strokes of the rod-pumped well are processed in a decomposition mode, and input end active power of the up strokes and the down strokes is obtained respectively and are calculated and converted into wellhead loading force; adjustment is conducted through balance blocks for operation balance of a pumping unit, actually measured data are used for further correcting the weights of the crank balance blocks of the oil pumping unit or retrieving the weights of the crank balance blocks after adjustment, actually measured active power is converted into wellhead loading force F<upper force i>, wellhead loading force F<lower force i> and superposed wellhead loading force F<upper and lower force i>, the wellhead loading force F<upper force i>, the wellhead loading force F<lower force i> and the superposed wellhead loading force F<upper and lower force i> are calculated, superposed and converted into wellhead loading force, and the indicator diagram of trends of the electrical parameters is determined before and after superposition with the crank balance blocks. According to the method, on-site testing is convenient and practical, and online automatic measurement is achieved.

The invention discloses a variable-gradient fractal lattice sandwiched reinforcement phase change heat sink and aims to provide an efficient phase change heat sink which is high in heat exchange efficiency, has certain universality and can be developed in a serialization mode. The variable-gradient fractal lattice sandwiched reinforcement phase change heat sink is realized according to the following technical scheme: reinforcement heat transfer structures are distributed in a phase change heat sink shell in an array; each variable-gradient fractal lattice sandwiched unit takes a variable-gradient V structure as a first-stage reinforcement heat transfer structure (4) according to the heat transfer and heat exchange characteristics of the phase change heat sink; on this basis, at variable-gradient V-shaped ends of the first-stage reinforcement heat transfer structures, the variable-gradient V structures in the same shape are gradually increased to form multiple stages of reinforcement heat transfer structures, and the specific surface areas of the multiple stages of reinforcement heat transfer structures are multiplied in sequence; the first-stage reinforcement heat transfer structures can transfer heat to an area far away from a heat radiation bottom plate rapidly in a reinforcement mode, and the second-stage reinforcement heat transfer structures (5) and the third-stage reinforcement heat transfer structures can transfer heat to phase change material far away from the heat radiation bottom plate rapidly to complete heat exchange.

The invention discloses a spreader stabilizing mechanism of a container gantry crane, comprising a drum group, a pulley block, a spreader upper frame and a steel wire rope group wound on the drum group and the pulley block; the steel wire rope forms four congruent inverse triangles at the space between the spreader upper frame and a pulley frame; the bottom points of the four inverse triangles are distributed at the four corners of the spreader upper frame symmetrically; included angles which are formed by the planes of the four inverse triangles and the moving direction of a cart and a trolley are all acute angles. Therefore, in the moving direction of the cart and the trolley, the motion damping of the four space triangles exists, thus reducing the swing of the spreader; when the load of the spreader is not balance and the swing of opposite angles is generated, namely, twisting and vibration are generated, the space triangle forms the motion damping in the diagonal direction of the upper surface of the spreader upper frame and forms damping component in three directions of the space, thus offsetting the swing of the opposite angles. The invention has simple structure, convenient maintenance and use and high safe reliability.

A transponder satellite communication navigation positioning system relates to the field of space technology. The system is equipped with a high-precision atomic clock at a ground communication navigation reference station, and the satellite orbit data is given by the satellite orbit determination system; the satellite integrity is given by the monitoring system The data forms the navigation message, and the ranging code composed of pseudo-random codes forms an integrated baseband signal, which is modulated by spread spectrum to form a navigation signal carrier, which is transmitted through the antenna and forwarded by 3 to 9 satellites in a certain geometric distribution in space The device converts the frequency and forwards the downlink, and broadcasts the signal to the coverage area; the ground user terminal receiving device receives the navigation signal carrier, and despreads and demodulates it to obtain the navigation data, thereby determining the position, speed and time of the user terminal receiving device. The invention has the advantages of low investment, guaranteed accuracy, convenient and flexible system maintenance and management, and dual functions of navigation and communication, so that the navigation and positioning accuracy can reach meter-level precision or be better than meter-level precision.

The invention discloses a harmless gasification treating process for a medical waste. By the process, the water content of a biomass gasification auxiliary material is less than 40 percent, and the particle diameter is controlled to be between 0 and 10mm. The treating process comprises the following steps of: mixing the medical waste with the biomass gasification auxiliary material in volume ratio into a mixture, wherein metal and glass are removed from the medical waste and the medical waste is subjected to solid-liquid separation, adding the mixture into a medical waste treating gasification furnace at the speed of 1 to 50kg / h, operating a balance wheel to compress the mixture, covering a top cover, opening an exhaust pipe and a valve which is arranged on a primary air supply pipe, closing a valve on a secondary air supply pipe, starting a fan, and adjusting the temperature of the medical waste treating gasification furnace; and when flue gas which contains much and steam is exhausted, closing a valve on an exhaust pipe, opening a valve of the secondary air supply pipe, filtering crude gas generated by the medical waste treating gasification furnace through a silk bamboo net in a purified gas conveying pipe, and conveying purified gas into a gas burning tower. The treating process for the medical waste can perform harmless gasification treatment on the medical waste, saves transportation cost and treatment cost, and is obvious in social benefit and environment-friendly benefit.

The invention relates to a system and method for achieving metadata analysis based on distributed cache. The system comprises a metadata analysis client-side, a metadata analysis server-side, a distributed cache framework server and a distributed cache server. The method comprises the steps that the distributed cache framework server loads data in a metadatabase into the distributed cache server and creates a connection pool; the metadata analysis client-side sends a corresponding metadata analysis message to the metadata analysis server-side; the metadata analysis server-side inquires the distributed cache server according to a metadata analysis task which is analyzed and sends a corresponding analysis result message to the metadata analysis client-side; the metadata analysis client-side analyzes the analysis result message and displays a metadata analysis result. By means of the system and method for achieving metadata analysis based on distributed cache, data access performance is improved, the response speed of metadata analysis is increased, user experience is improved, and the system and method have a wider application range.

The invention discloses a low-altitude target detecting system of a three-coordinate continuous wave one-dimensional phase sweeping unmanned aerial vehicle, and is aimed at providing a detecting device high in data detecting rate and anti-interference capacity. By means of the technical scheme, the system measures a target distance through a frequency modulation continuous wave ranging system, anantenna feedback subsystem converts radio frequency signals into electromagnetic wave signals to be radiated to the space, a receiving subsystem conducts amplifying, frequency varying and SFC controlprocessing on echo signals output by an emission and wave control subsystem, a signal processing subsystem generates the working time sequence of the whole system, measures the three-coordinate vectors of the distance, direction and pitching of a target position and calculates frequency modulation continuous wave ranging data of target signals, and a data processing and communication control subsystem parses the target angle, establishes the trajectory of target movement, controls the working mode of a radar and detects three-coordinate target information according to the target signals calculated by the signal processing subsystem and the antenna angle information output by the antenna control subsystem.

The invention relates to a high speed image data acquisition and processing card based on a Camera Link interface, belonging to the field of digital image communication processing. The high speed image data acquisition and processing card comprises a Camera Link interface, an acquisition module, a processing control module, a communication module and a display module; after an opening command of a singlechip is received, data are led into a level switching chip through an external interface camera, a TTL level formed through switching enters a double-port RAM under the control of a programmable gate array to realize acquisition and processing, digital signals are switched into analog signals through a VGA switching chip and then displayed on an external display screen through a VGA interface, and communication with external equipment is realized in real time through a serial port and a network port. The high speed image data acquisition and processing card has multiple functions, high integration density, compact structure, high acquisition speed and convenient use and maintenance, and is also convenient to upgrade, maintain and secondarily develop.

The invention discloses an intelligent port logistics system and device based on a third-generation (3G) internet of things application platform and relates to collection and distribution, transit shipment, storage, trading, processing, ports, multimodal transport, cargo agency and device dispatching management of port cargoes. The intelligent port logistics system and device comprises a port logistics system and device and is characterized in that the 3G technology and the internet of things technology are integrated into the port logistics system and device to form the intelligent port logistics system and device. The intelligent port logistics system and device is provided with a real-time remote data collection processing system, a monitoring system and an operation system and device, and improves operation efficiencies in links of port logistics operation, transport service, port management, the port logistics system and device and the like. The intelligent port logistics system has individuality identification and data sharing functions due to internet of things chips arranged on the port logistics device and cargoes, can achieve mutual connection of things, achieves remote control and reduces port logistics cost, and a modern port logistics system which is real-time, accurate, efficient and high-quality in the port service range can be built in future.

The invention relates to a method for preparing anti-hardening granular ceramic iron-carbon micro-electrolysis filler from industrial wastes. The method comprises the steps of mixing iron powder, lignin, red mud and clay, which are used as raw materials, in a mass ratio of (4-5):(2-3):(1-3):3, then pelleting, and burning under a reducing atmosphere. The particle size of the prepared anti-hardening granular ceramic iron-carbon micro-electrolysis filler is 4-6mm. When used for sewage treatment, the anti-hardening granular ceramic iron-carbon micro-electrolysis filler can improve the biodegradability of wastewater in a short time and reduce the CODCr (Chemical Oxygen Demand Cr) and toxicity of the wastewater, and is difficult to be hardened in use, long in service cycle and simple to maintain. The industrial wastes are used as raw materials, so that energy resources are saved, and the treatment of wastes with processes of wastes against one another is realized.

The electronic weighing system includes sensors, automatic measuring and controlling unit, signal processing circuit, computer and processing system, and power source. The lifting force measuring sensors and the bucket position measuring switches as the automatic measuring and controlling unit have outputs connected to the inputs of the signal processing circuit, and the signal processing circuit has output connected via A / D converting module and I / O port to the embedded computer with weighing software. The loaded amount measuring method is to measure the lifting force of the bucket with the said system to measure the mass of the material inside the bucket, and includes the steps of power-on system test, inputting relevant information, reset, automatic weighing, accumulating, reset, re-weighing, etc. The present invention has relatively high weighing accuracy.

The invention discloses an automatic online monitoring method and device for VOCs (volatile organic chemicals) in water, which can be used for automatically and quickly monitoring the contents and concentration of VOCs in water, and transmitting the real-time data to a remote center platform and realizing remote reverse control. The device comprises an automatic water taking device, an automatic sampling device, a purging and gathering concentrator, a gas chromatograph, a tandem type detector, an industrial controller and a data transmission module. The method and the device disclosed by the invention are fit for automatically on-line monitoring 60 volatile organic chemicals published by the method 502.2 of US EPA (Environmental Protection Agency), particularly for 29 volatile organic chemicals stipulated in Sanitary Standard for Drinking water. The method and the device have the advantages of quick speed, high monitoring sensitivity, stable and reliable performance, full-automatic monitoring and data transmission and on the like, can be applied for automatic monitoring stations, mobile emergency monitoring stations and labs.

The invention discloses an integrated adaptive intelligent traffic warning sign comprising an intelligent controller, a weather collection unit, a visibility detection unit, an event detection unit and an LED screen display unit; the weather collection unit, the visibility detection unit, the event detection unit and the LED screen display unit are integrated. The weather collection unit comprises a weather information collection controller and a sensor. The visibility detection unit comprises a visibility viewer. The event detection unit comprises a people and vehicle information collection module. The intelligent controller receives data from the weather collection unit, the visibility detection unit and the event detection unit, analyzes the collected data through a special software algorithm, independently adjusts indexes such as information release contents, forms and brightness without dependence on communication and control of a background center, and outputs corresponding output signals to the LED screen display unit. The integrated adaptive intelligent traffic warning sign allows warning for traffic safety on roads, especially expressways, and thus, fatal traffic accidents on the roads and expressways are effectively prevented or decreased.

A wire-stripping machine for a medium-high voltage cable comprises a frame, a speed reducer, a motor, a coupler, a gear, a bearing block, a bearing saddle, pressing wheels, blades, clamping devices and a frame cover plate. Two groups of pressing wheels are arranged on the frame side by side, each group of pressing wheels includes an upper pressing wheel and a lower pressing wheel which are oppositely mounted, a space for penetrating the cable is reserved between each upper pressing wheel and the corresponding lower pressing wheel, the working surface of each upper pressing wheel is semicircular, the working surface of each lower pressing wheel is umbrella-shaped, the blades are clamped in the middles of the working surfaces of the upper pressing wheels in the wire outlet direction, one clamping device is arranged above each group of pressing wheels, one of the lower pressing wheels of the two groups of pressing wheels is mounted on a driving shaft, the other one of the lower pressing wheels of the two groups of pressing wheels is mounted on a driven shaft, the driving shaft is connected with the speed reducer and the motor through the coupler, the gear is mounted on the driving shaft and transmits power to a transmission gear through an intermediate gear, and the transmission gear is mounted on the driven shaft and drives the other lower pressing wheel. By the aid of the wire-stripping machine, a wire insulating layer can be automatically separated from metal, wire-stripping efficiency is improved, labor cost is saved, and loss is furthest reduced.

A full-automatic spiral edible mushroom cultivating material bagging machine comprises a rack, a loading motor, a power transmission mechanism, a spiral conveyer mechanism and a sliding trolley provided with a material bag model barrel, as well as a minitype motor which can rotate forwardly and reversely, wherein the sliding trolley is installed on a guide rail of the rack through front and rear guide wheels at the bottom; the power of the minitype motor is transmitted to the sliding trolley to move back and forth along with the guide rail of the rack through a belt and a chain wheel and chain transmission mechanism; the material bag model barrel comprises two upper and lower semi-circle groove-shaped frameworks which can be opened and closed; when in bagging, the sliding trolley can drive the material bag model barrel to move forwardly to be sheathed with a discharging barrel; the upper and lower two semi-circle groove-shaped frameworks of the material bag model barrel can clamp a material bag fully filled with a cultivating material, and retreat to the slope at the tail end of the guide rail of the rack; and the lower semi-circle groove-shaped framework can be unfolded downwards to loosen the material bag to slide on the floor automatically. With the material bagging machine, the degree of tightness and loading height of the material bag can be effectively controlled, the labor intensity can be lightened, and the bagging efficiency can be doubled.

The invention discloses a simulated interface adapter of an aircraft engine control system. The simulated interface adapter comprises an interface configuration management and signal monitoring module, a signal switching module, a signal wiring module, a fault injection module, a signal conditioning module and an interface control module. The interface configuration management and signal monitoring module is connected with the signal switching module, the signal wiring module, the fault injection module, the signal conditioning module and the interface control module. The signal switching module, the signal wiring module, the fault injection module, the signal conditioning module and the interface control module are sequentially connected. The signal switching module is connected with a controller of the aircraft engine control system. The interface control module is connected with an external real-time hardware platform. The open and modularized overall simulated structure is adopted for separating all the modules from one another, the real-time simulated platform of various interfaces is supported, and expansibility and maintainability are remarkably improved.

The invention relates to a portable mapping unmanned plane. A mapping task is executed by the unmanned plane instead of a manned plane, and visible image data and video data can be acquired. The unmanned plane comprises a main body, wherein the main body is configured aerodynamically and provided with an H-shaped fixed wing and comprises a body, a wing, a horizontal tail wing, a vertical tail wing and a tail boom which are connected with one another through inserted pins; the main body is a lifting body main body, and the interior of the main body is sequentially divided into four cabins, namely an equipment cabin, a loading cabin, a parachute cabin and a power cabin from front to back according to functions; an airborne data transmission radio station and a loading part are respectively arranged in the equipment cabin and the loading cabin; an engine and a propeller are arranged at the back end of the power cabin, and an autopilot is arranged on the upper part of an oil tank in the power cabin; and a flap, an auxiliary wing, and steering engines of an elevating rudder and a yaw rudder are arranged in the tail boom. The unmanned plane has the characteristics that the unmanned plane is convenient to carry, easy to maintain and use, low in cost, reusable and the like, has great advantages in the aspect of emergency rescues and broad market demands and is easy to popularize and apply.

The invention relates to a method for preparing anti-hardening granular burning-free iron-carbon microelectrolysis filler. The method comprises the following steps of: using scrap iron, charcoal, coal ash, cement, quick lime and clay as materials, mixing the materials respectively according to the mass fraction of 32-26%, 8-10%, 32-35%, 9-12%, 5-7% and 5-7%, granulating and curing to obtain the anti-hardening granular burning-free iron-carbon microelectrolysis filler. The particle diameter of the prepared anti-hardening granular burning-free iron-carbon microelectrolysis filler is 5-7mm. The method has the advantages that when a product is used for sewage treatment, the CODCr and the chromaticity of waste water can be reduced in shorter time, the toxicity of the waste water can be reduced and the biodegradability can be improved; in the use process, the hardening is not easy to occur, the maintenance cost is low and the usage period is long; in the preparation process, waste resources are fully utilized and a burning-free process is adopted, so that the purposes of saving energy, reducing emission and treating wastes with wastes are achieved.

The invention relates to a movable operating platform type floating net-cage fish culturing accessory facility. The facility comprises a fish culturing net cage, an inserting and connecting combined type floating fish culturing net cage frame, an automatic feeding machine, an oxygenation device support, an air floating power water circulation oxygenation device and a floating bridge type net-cage fish culturing operating platform. The movable operating platform type floating net-cage fish culturing accessory facility is formed by applying the net-cage fish culturing basic principle, serving the inserting and connecting combined type floating fish culturing net cage frame as a basis and being matched with the related devices suitable for net-cage culturing, namely, the facility is formed by organically combining the air floating power water circulation oxygenation device, the net-cage fish culturing automatic feeder, the floating bridge type net-cage fish culturing operating platform and other facilities. The movable operating platform type floating net-cage fish culturing accessory facility has the advantages of being complete in function, simple in structure and easy to manufacture and saving raw materials. The movable operating platform type floating net-cage fish culturing accessory facility can be used by designing the appropriate culturing loads to determine the number of placed fish culturing cages according to the culturing water environment volume, the movable operating platform type floating net-cage fish culturing accessory facility is easy and convenient to use and operate, and the combined mode is flexible. The net cages are used in a pond for carrying out culturing, and multi-species and multi-types of fishes can be accurately cultured at the same time and do not interfere with one another.

The invention discloses a vertical grinding mill, wherein a vertical grinding mill body is fixed on a concrete foundation; a grinding table is driven by a rotary power source and horizontally placed at the bottom of the vertical grinding mill; a discharging clearance exists between the grinding table and the inner wall of the vertical grinding mill; a non-grinding region in the center of the grinding table is of an upwards-raised cone; an edge grinding region is of an arc surface which is gradually raised upwards; and a grinding roller extends from the side of the vertical grinding mill to the upside of the grinding region of the grinding table and obliquely fixed downwards. The vertical grinding mill provided by the invention has the advantages of small grinding table diameter, high grinding table rotating sped, high work efficiency, low energy consumption and the like.

The invention relates to solid phase-free drilling-in liquid, belonging to the technical field of petroleum drilling engineering chemical agents. The solid phase-free drilling-in liquid is characterized in that: the solid phase-free drilling-in liquid is formed by the following ingredients in percentage by weight: 0.5-1 percent of tackifier, 0.1-0.6 percent of pH regulator, 1-4 percent of fluid loss additive, 3-30 percent of inhibitor, 1-5 percent of lubricant and the balance of sea water. The drilling-in liquid has dual biological and chemical degradation functions, has high viscosity and can meet the requirements of a horizontal well, and particularly a large-displacement horizontal well on the viscosity of low shearing rate; the drilling-in liquid is the solid phase-free drilling-in liquid and does not contain solid phase, the metal ion invading resisting capacity is strong, the shale inhibition is strong, the lubrication is high, the system performance is stable, the maintenance and usage are convenient, thereby having better oil-gas layer protecting effect; the oil field exploitation efficiency can be improved and the normal exploitation life of the oil field can be prolonged.

The invention discloses a detecting device of control time sequence of a non-contact initiating explosive device and a method thereof, relating to an automatic detecting device and a method for the energization time sequence of a control system of the initiating explosive device. The detecting device mainly comprises a signal collecting unit, a central processing unit, a data storage unit, a man-machine interactive unit and an automatic detecting unit. The method utilizes the device and the image processing and pattern recognition technology to conduct automatic detection by programs. The invention has the characteristics of capability for detecting various types of equivalent machines and various time sequence status, good commonality, high testing efficiency and reliability, high accuracy and reliability of testing results, and the like. The invention can be widely applied to industries which have demands on the accurate control of detonation of initiating explosive device, such as spaceflight, aviation, engineering, building, manufacturing, medical treatment and the like, and can ensure the reliable and safe application of the initiating explosive device.

A brake control valve of an airplane is characterized in that two ends of a jet nozzle of a torque motor are communicated with those of a slide valve control cavity through an outlet of an orifice; the brake port of the brake control valve of the airplane is communicated with that of the slide valve through an oil line; a brake port oil filter is serially connected between the brake port of the slide valve and that of the brake control valve of the airplane; the oil inlet of a brake port pressure sensor is connected to the oil line between the brake port of the slide valve and the oil inlet of the brake port oil filter; the oil inlet is communicated with that of a change-over valve through the oil line; a solenoid valve is serially connected to the oil line between the oil inlet and that of the change-over valve; an inlet filter is serially connected between the solenoid valve and the oil inlet; the oil inlet of a flow controller is communicated with the oil outlet of the change-over valve through the oil line; and the oil inlet of the pressure sensor is communicated with the oil line at the outlet of the flow controller through a pipeline. The brake control valve has good working stability and reliability, and provides inlet pressure and outlet pressure signals.

The invention relates to a method for producing biogas through the high-efficiency anaerobic fermentation of an organic waste resource in an intensive vegetable area. According to the method, an acidification-inhibiting microbial agent is directly added in crushed vegetable wastes to be mixed with the crushed vegetable wastes. Or, one or more than two components selected from fresh cow manure, fresh swine manure and straws processed by a fungicide are added in crushed vegetable wastes to be mixed with the crushed vegetable wastes. After that, water is added and stirred evenly and the C / N ratio and the water content of the obtained mixture are adjusted to be (20-30):1 and 88-90% correspondingly. In this way, a mixed material is obtained. Then an inoculum is added. The TS and the pH value of the obtained material are adjusted to be 8-12% and 7.7-8.0 correspondingly, so that a fermentation material is obtained. The fermentation material is subjected to anaerobic fermentation at the temperature of 35-38 DEG C. According to the technical scheme of the invention, vegetable wastes, adopted as a resource, are subjected to anaerobic fermentation to generate biogas. In this way, the problem that vegetable wastes are randomly piled to pollute the environment can be avoided. Meanwhile, the biogas production efficiency through the anaerobic fermentation process of vegetable wastes can be improved at the same time.