52results about How to "Guarantee adequacy" patented technology

The invention relates to a system for analyzing reliability of flight guidance control software based on a formalized rule. The system comprises a flight guidance control software requirement modelingmodule, a flight guidance control software reliability analyzing rule management module, a flight guidance control software reliability analyzing rule formalized description module and a flight guidance control software reliability automatic analysis module based on the formalized rule. According to the system, automatic traversing failure model effectiveness analysis is performed for a requirement model, potential logic branches which are not defined or considered in the requirement are sufficiently recognized, and existing potential safety hazards are analyzed. The efficiency and quality inthe work of software reliability analysis are improved, the requirement quality and completeness are ensured, the level of the software reliability is guaranteed, and the development requirements ofa flight guidance control system are met.

The invention provides a machining process of a double-metal band saw. A saw back material and a saw tooth material are welded by laser; then, the bright annealing treatment is performed; a two-roller rolling mill is used for welding line leveling, straightening, repeated extrusion and fixed-length material preparation to obtain a coiled band; then, the tooth milling, the tooth material cleaning, the tooth separation, the quenching treatment and the subzero treatment are performed; and the rolling straightening, the sand blasting, the code spraying and the root band butt welding are performed after secondary tempering treatment to obtain the double-metal band saw. Compared with the prior art, the machining process uses carbon, silicon, manganese, chromium, tungsten, molybdenum, vanadium, nickel, cobalt, niobium, sulfur and iron as components of the saw tooth material, and improves the hardness and the toughness of the double-metal band saw through adjusting the contents of all the components. Secondly, the machining process adopts such modes as quenching treatment and subzero treatment to guarantee the tempering sufficient degree, and improves the characteristics of high hardness, high toughness and tidy incision of the double-metal band saw.

The invention discloses a preparation method of higher fatty acid alkaline earth metal salt, which comprises the following steps: pre-mixing and dispersing fused higher fatty acid and micro-powdery alkaline earth metal oxide or hydrate, continuously feeding into a high-speed mixer capable of controlling the pre-mixing time together with a water solution containing a catalyst and a moistening agent, continuously outputting to a heat-insulation tank, keeping for a certain period of time at the proper temperature, and pulverizing to obtain a powdery higher fatty acid alkaline earth metal salt product. The preparation method has the advantages of simple process, simple equipment, mild reaction conditions, energy saving, and higher purity of the product.

The invention discloses a method for preparing n-type CaMnO3-group thermoelectric ceramic. The raw materials of the thermoelectric ceramic comprise graphite and CaMnO3, and the preparation method includes the steps of (1) mixing partial graphite with CaMnO3, and carrying out presintering to obtain sintering materials; (2) breaking the sintered material obtained by the step (1) to add with residual graphite, mixing uniformly, grinding and sieving to obtain micro powder; (3) molding and sintering the micro powder obtained by the step (2) to obtain the prepared n-type CaMnO3-group thermoelectric ceramic. The thermoelectric ceramic has good thermoelectric properties, and the preparation method has the advantages of simple technological operation, low requirements of equipment conditions, environmental-friendly processes and low cost; moreover, the obtained materials have the characteristics of big thermo electromotive force, low resistivity at high temperature and a big power factor.

The invention relates to a direct-current parallel type wind farm active power coordinated control method. A wind farm includes direct-current wind turbine generator sets provided with energy storage systems. The method includes the following steps that: an active power dispatch instruction of a power grid is determined, and the running states of the wind turbine generator sets in the direct-current wind farm are acquired, and the usable maximum active power of the wind turbine generator sets is determined; the running states of the energy storage systems are determined, and the running state of the direct-current wind farm is determined; whether the energy storage systems satisfy the requirements of the active power dispatch instruction of the power grid is analyzed, and therefore, the active power control instructions of the direct-current wind turbine generator sets can be determined. With the direct-current parallel type wind farm active power coordinated control method adopted, power generated by the wind turbine generator sets can change with specified power instructions accursedly, and power generated by the wind farm can satisfy the requirements of the dispatch of the power grid. According to the direct-current parallel type wind farm active power coordinated control method provided by the technical scheme of the invention, the requirements of the power grid, the running states of the wind turbine generator sets and the working states of the energy storage systems are comprehensively considered; power instructions are transmitted to the direct-current wind turbine generator sets; the output power of the generators and the energy storage systems are adjusted, so that the active power outputted by the wind farm can satisfy the requirements of the power grid in a certain range.

The invention discloses a control method and device of a tobacco pneumatic drying air-heating furnace. A CO detector (5) and an O2 detector (6) are installed on a flue gas discharging pipe (7) of the pneumatic drying air-heating furnace (4), an air distribution air door (1) is installed on an air distribution pipeline (8), and a control system is electrically connected with the CO detector (5), the O2 detector (6) and the air distribution air door (1) to establish interlocking control relation. The CO content and the O2 content in flue gas after combustion are adjusted by changing the opening degree of the air distribution air door by means of the control method. By means of the control method and device, combustion control of the tobacco pneumatic drying air-heating furnace can be achieved, accordingly emission of the combustion flue gas is effectively controlled, and energy consumption of the air-heating furnace is reduced. The device is simple in structure and reliable in operation.

The invention discloses a multi-functional multi-arm coordinated operation control system for an emergency rescue vehicle. A first rotary platform is installed on the main body of the vehicle, whereina first working arm is installed on the first rotary platform; a second rotary platform is installed on the first rotary platform, and a second working arm is installed on the second rotary platform;a first arm boom lifting cylinder regulating valve, a first arm telescopic boom lifting cylinder regulating valve, a first arm telescopic boom telescopic cylinder regulating valve, a first arm lifting hook adjustment cylinder regulating valve, a second arm second boom luffing cylinder regulating valve, a second arm telescopic boom luffing cylinder regulating valve, a second arm telescopic boom telescopic cylinder regulating valve, a motor control valve of the first rotary platform, a motor control valve of the second rotary platform, an angle sensor of the first rotary platform and an angle sensor of the second rotary platform are all connected with the multi-arm coordinated operation controller by signals. In this way, multiple arms of the multi-functional emergency rescue vehicle can lift long bar-shaped heavy objects efficiently, harmoniously, stably and safely.

The invention relates to a horizontal oil fuel electric heater comprising a heating cavity which is tubular and is horizontally arranged, the heating cavity is internally provided with an electrical heating pipe which is arranged in the length direction of the heating cavity, and an oil inlet is arranged near the lower end of the heating cavity. An oil outlet is formed in the heating cavity, and a liquid level detecting unit, near the oil outlet, is also arranged on the heating cavity. The liquid level detecting unit is used for detecting liquid level signals in the heating cavity, and transferring the liquid level signals to a controlling unit. The controlling unit is used for controlling the power-on and power-off of the electrical heating pipe, liquid oil enters from a lower position and comes out from a higher position and is guided by the electrical heating pipe in the heating cavity, and outflows from the oil outlet of the heating cavity after the liquid oil is heated up, so that the heating speed and homogeneous degree of the oil fuel can be improved. The liquid level detecting unit is arranged on the heating cavity, so that the height of the liquid level in the heating cavity can be detected. When the height of the liquid level is too low, the electrical heating pipe is powered-off by the control of the controlling unit and a dry combustion phenomenon of the heater is avoided.

The invention discloses a well water source lifting pump intelligent monitoring system. The well water source lifting pump intelligent monitoring system is characterized in that the system comprises an incoming line power switch, a current transformer, a compensation capacitor module, a control box, a fuse module, a three-phase smart meter, a collector, a remote controller, a water level sensor and a terminal; remote start and stop of a water source pump are achieved, fault alarm is achieved, the efficiency of starting and stopping the pump is ensured, the timeliness, accuracy and sufficiencyof fault finding are achieved, scientific and reasonable guarantees of water supply safety are achieved, reasonable and effective water supply control is achieved, pump starting is carried out immediately in a control center, a lot of manpower and material resources are saved, and a person does not need to rush to the scene.

The invention discloses a manufacturing device of high-quality bamboo pulp paper. The device comprises a machine body, wherein a grinding tank is arranged on the top side of the machine body; a grinding device for grinding steamed bamboo chips is arranged in the grinding tank; a drive motor is turned on, and therefore, a penetrating shaft, symmetrical belt pulleys and a cam are driven to rotate. According to the device, the cooked bamboo board can be processed into bamboo powder; the bamboo board can be overturned up and down in the grinding process, so that the grinding sufficiency is guaranteed, meanwhile, the bamboo powder is filtered through a filter screen, so that the yield of the bamboo powder for manufacturing bamboo pulp is increased. When the device is used for manufacturing thepaper, the bamboo pulp is not exposed in the air, and meanwhile, new paper is not exposed in the air during manufacturing.

The invention discloses a special long-acting organic compound fertilizer for angelica sinensis, and a preparation method thereof, and belongs to the technical field of fertilizers, wherein the special long-acting organic compound fertilizer is prepared from the following raw materials by weight: 20-30 parts of chicken manure, 25-34 parts of corn straw, 30-40 parts of edible fungus residue, 5-8 parts of potassium humate, 1-5 parts of a high water absorption resin, 1-2 parts of a BM bacterial agent-fermenting agent, 1-3 parts of zeolite, 0.3-0.4 part of a urease inhibitor, 2-5 parts of oxalic acid, 1-5 parts of attapulgite powder, 12-17 parts of Banlong and 5-10 parts of chitin. According to the invention, the special long-acting organic compound fertilizer can effectively provide nutrientsrequired by the growth of angelica sinensis so as to improve the fertility of saline-alkali soil and effectively inhibit viruses and insect pests.

The invention provides an air high-temperature treatment device. The air high-temperature treatment device comprises a main body, an air inlet pipeline, a plurality of air guide pipes, an air outlet pipeline, an air extraction device and a temperature control assembly; a cavity is formed in the main body; the multiple air guide pipes are vertically arranged in the cavity at intervals, and the lower end of each air guide pipe penetrates through a bottom plate of the main body to communicate with the outside of the main body; the upper ends of the air guide pipes extend to the top of the cavity; the air inlet pipeline communicate with the interior of the cavity at the bottom of the cavity; the air extraction device and the air outlet pipeline are arranged below the main body; the air extraction device communicates with the lower ends of the air guide pipes; the air outlet pipeline communicates with the air extraction device; the temperature control assembly is arranged in the cavity; and all the air guide pipes penetrate through the temperature control assembly. According to the air high-temperature treatment device, air is sterilized through high temperature, no harmful substance is left, no harm is caused to human bodies, people do not need to leave in the using process, and using is very convenient.

The invention discloses a roadbed device for relieving urban inland inundation, which comprises a kerb roadbed and a bottom roadbed. A waterlogging drainage mechanism comprises an upper supporting plate, a side groove plate, a side sliding plate, a lifting rod and a waterlogging drainage plate, the upper supporting plate is flush with the surface of the kerb roadbed, and a groove hole allowing thewaterlogging drainage plate to be clamped is formed in the upper supporting plate; the side groove plate is installed on the side wall of the cavity, the side sliding plate is in sliding fit with theside groove plate, a lifting rod is further rotationally connected to the side sliding plate, the other end of the lifting rod is rotationally connected to the waterlogging drainage plate, and the waterlogging drainage plate is in sliding fit with the sliding groove plate. When continuous rainfall suddenly occurs, the power box is driven, the power box drives the telescopic rod to do contractionmotion, then the lifting rod drives the waterlogging drainage plate to descend, accumulated water on a roadbed can be drained through a gap between the waterlogging drainage plate and the upper supporting plate, and then the accumulated water accumulated on the roadbed is reduced.

The invention discloses a reaction kettle for carbon aerogel production, relates to the technical field of carbon aerogel production, and aims to solve the problems that in the prior art, the reaction kettle is relatively closed during working, and the reaction condition cannot be observed. According to the technical scheme, the system comprises an image acquisition unit which is located on the top wall of a reaction kettle and acquires an acquired image in a tank body in real time; an image analysis unit which is used for learning and analyzing the acquired image through a neural network and outputting an abnormal result and an abnormal position when an abnormality exists; a display unit which is in communication connection with the image acquisition unit and the image analysis unit and is used for acquiring and displaying the acquired image, the abnormal result and the abnormal position; a controller which controls the stirring device to process the abnormal position corresponding to the abnormal result according to the abnormal result. An image in the reaction kettle can be shot and returned to the display unit, and therefore a worker can conveniently observe the reaction state.

The invention discloses a rapid pathogenic microorganism detection method. The method comprises the following steps: untwisting an aptamer into a single chain, preparing a magnetic bead-aptamer-targetmicroorganism, preparing a magnetic bead-aptamer target-microorganism-coated Ag, drawing a standard working curve, and detecting a to-be-detected sample. A rapid and efficient magnetic capture and separation technology is combined with an Ag nanoparticle in-situ enhanced pathogenic microorganism intrinsic Raman signal synthesized by aptamer mediation, and rapid detection of pathogenic microorganisms is realized by virtue of a portable Raman spectrometer. The construction process and the detection process of the sensor do not need large instruments, the operation is simple, the whole process can be completed within 1 hour, the sensitivity is high, and the selectivity is good.