139results about How to "Strong field adaptability" patented technology

The invention discloses a camera on-field calibration method in a measuring system, belonging to the field of computer vision detection, in particular to an on-field calibration method for solving inside and outside parameters of cameras in a large forgeable piece size measuring system. Two cameras and one projector are provided in the measuring system. The calibration method comprises the following steps of: manufacturing inside and outside parameter calibration targets of the cameras; projecting inside parameter targets and shooting images; extracting image characteristic points of the images through an image processing algorithm in Matlab; writing out an equation to solve the inside parameters of the cameras; processing the images shot simultaneously by the left camera and the right camera; and measuring the actual distance of the circle center of the target by using a left theodolite and a right theodolite, solving a scale factor and further solving the actual outside parameters. The invention has stronger on-field adaptability, overcomes the influence of impermeable and illegible images caused by the condition that a filter plate filters infrared light in a large forgeable piece binocular vision measuring system by adopting the projector to project the targets, and is suitable for occasions with large scene and complex background.

The invention discloses an intelligent continuous insect killer which comprises a support. A support plate is arranged on the support, an insect detecting sensor assembly, a gas type power component, an insect blower component, an insect trapper assembly, an insect collecting tank, a control system and an insect killer component are arranged on the support plate, the insect trapper assembly is arranged at an air outlet end of the insect blower component, the gas type power component is connected with a push rod of the insect blower component and provides power for the push rod, the insect killer component is arranged at the front end of the insect trapper assembly, the insect collecting tank is arranged at the lower end of the insect killer component, and the insect detecting sensor assembly is arranged in the insect trapper assembly. Detected insect density is transmitted to the control system by the insect detecting sensor assembly, the gas type power component works under the control of the control system, an insect killing system only starts to work when insect killing is necessary, accordingly, electric energy can be saved, electric fields generated by high-voltage power grid can be prevented from affecting insects when the insects approach the power grids, and insect killing effects can be improved. The intelligent continuous insect killer has the advantages of energy conservation, environmental protection, convenience in use, simple structure, easiness in manufacture and low cost.

The invention relates to the technical field of molecular markers, and particularly relates to an SNP molecular marker related to pod and seed size on a peanut A06 chromosome and application thereof.The SNP molecular marker related to the pod and seed size on the peanut A06 chromosome is A06-107901527, and contains a nucleotide sequence with G/T polymorphism at the 12 site of the sequence shown in SEQ ID NO. 1. In the SNP molecular marker A06-107901527, the genotype of the site with the polymorphism is GG, the character value corresponding to the peanut pod and seed size is high, the genotype is TT, and the character value corresponding to the peanut pod and seed size is low. The SNP molecular marker is used for identifying the character phenotype of the peanut pod and seed size, theproduction cost can be greatly saved, and the selection efficiency can be improved.

The invention discloses a portable elemental analyzer applicable to field exploration, comprising a sample feeding system, an electrolyte discharge plasma generation system, a light path collecting and light filtering sorting system, a data processing system and a control system; the sample feeding system diverts a sample into the electrolyte discharge plasma generation system to emit an elemental spectrum by glow discharge, the light path collecting and light filtering sorting system acquires and transmits the spectrum to the data processing system, and the control system performs displaying and acquiring finally; the control system controls the sample feeding system, the electrolyte discharge plasma generation system, the light path collecting and light filtering sorting system and the data processing system. The invention provides a metal element analyzer free of advanced sample acidifying or gas carrying, more stable in discharge, simple to operate, low in price and small in size. A detection method of the invention enables automatic detection, and is simple to perform and high in field adaptability so that field detection speed and precision are greatly improved.

The invention discloses a measuring method for mud-rock flow's impact force which adopts a concrete reinforcement structure contact fiber grating mud-rock flow monitoring device. In this method, first, the maximal arm (Lmax) of impact force is determined. Second, by experiments, a fitting equation F= f(Epsilon) is established between the impact force and the strain of aprimary strain fiber grating sensor under the maximal arm(Lmax) of impact force . The strain characteristics of the strain fiber grating sensor under an arbitrary impact force (FX)are determined again to further determine the arm (Lim) of impact force. Through lever arm equivalent transformation, the arbitrary impact force (FX) and the strain value Epsiloneq of the primary strain fiber grating sensor under the maximal arm (Lmax) of impact force can be obtained. Finally, the value of impact force FX can be solved through the fitting equation. According to the invention, the principle of the method is reliable; the computing process is scientific and convenient; the impact force of a highly disruptive mud-rock flow can be measured; and the magnitude of damage energy of the mud-rock flow to channels and houses can be reflected directly. The method is practicably suitable for field use and can be widely applied.

The invention relates to a power frequency electric field acquisition method based on the periphery of a high-voltage power transmission line, and the method comprises the following steps: S10, enabling the power transmission line to be simplified meeting the engineering precision requirement in order to facilitate the calculation and analysis of the electric field distribution around the power transmission line; S20, calculating a potential coefficient matrix of the power transmission line by resetting analog charges and matching point positions in the simplified model of the power transmission line; and S30, calculating the charges of the wire per unit length according to the potential coefficient matrix and the voltage vector, obtaining an electric field generated by the charges by using a superposition theorem, finally verifying the calculation precision, and repeating the step S20 if the calculation precision does not meet the requirements. Compared with the prior art, the methodhas the advantages of relatively high calculation precision and the like.

The invention discloses a cotton aphid control method. The method is achieved by multiplying natural enemies in the field through sorghum aphid breeding on sorghum and by planting sorghum on the edge of a cotton belt. The ratio of the number of rows of the cotton belt to the number of rows of a sorghum belt is 6-10:1. A row gap of the cotton belt is 30-50 cm, and a row gap of the sorghum is 40-50 cm. The number of rows of the sorghum in the sorghum belt is 1-4, and the sorghum is one or two of sweet sorghum or glutinous sorghum. The adopted sorghum is annual crop and is applicable to diversified cropland cotton regions in Yangtze river and Yellow river basins in our country. Host specificity of the sorghum aphid is high so that the sorghum aphid can not jeopardize local main crops such as cotton and corn. Planting of sorghum is relatively simple, the sorghum is strong in adaptability to the field, and special management is not required. By breeding the sorghum aphid on the sorghum belt, the density of the natural enemies in the field is increased, and an effect of controlling cotton aphid damage to cotton is achieved.

The invention provides a multi-parameter integrated continuous online monitoring system for water quality of underwater. The monitoring system comprises a large barrel fixed on a support, a small barrel is disposed in the large barrel, and the support is provided with a plurality of wheels at the bottom. The large barrel is provided with a water outlet at the bottom, and the small barrel is provided with a water inlet at the bottom. The top of the small barrel is open, top of the small barrel is provided with a barrel cover, and a dissolved oxygen electrode, a conductive electrode, a pH electrode and an ORP (oxidation-reduction potential) electrode penetrate through the barrel cover to extend into the small barrel respectively. Water flow enters from the water inlet at the bottom of the small barrel, overflows from the top of the small barrel and flows out of the water outlet at the bottom of the large barrel. By the design of a flow-through pool of the small barrel sleeved by the large barrel, the electrodes are stretched into the small barrel through the barrel cover of the large barrel, and accordingly water quality to be detected is isolated from the outside so as to reflect truth of water quality. The whole system is designed in a demountable 'handcart' type, so that the monitoring system can move conveniently and flexibly, the handcart can be demounted to conveniently move, and motion operation is facilitated for a user according to the environment.

The invention relates to a shallow-layer seismic prospecting system based on wireless data transmission, comprising a shallow-layer seismic prospecting master station, a shallow-layer seismic prospecting triggering substation, and a plurality of shallow-layer seismic prospecting detection substations. The shallow-layer seismic prospecting master station comprises a data processing host and a wireless access point. The shallow-layer seismic prospecting triggering substation comprises a first wireless boundary device and a first shock sensor for sensing earthquake focus shock signal. Each shallow-layer seismic prospecting detection substation comprises a second shock sensor, a filter, a signal gain controller, an analog-to-digital converter, a processor and a second wireless boundary device.The invention is advantageous in that the anti-interference capability is stronger, and the shallow-layer seismic prospecting result can be more accurate.

The invention discloses a multifunctional hydraulic cleaning filter car. Existing hydraulic oil filter cars cannot provide various filter precision grades and cannot conduct data analysis on hydraulicoil contaminants. Return oil of the multifunctional hydraulic cleaning filter car needs to pass through a return oil detection port, a magnetic filter and a coarse filter. Output oil needs to pass through an output oil detection port, an adjustable filter precision loop, a fine filter and a main oil tank oil suction filter. The return oil detection port and the output oil detection port are eachcomposed of a sampling stop valve, a pressure reducing valve, a flowmeter, a throttling valve and a pressure gauge and are connected with a detection device. The adjustable filter precision loop is composed of a first special fine filter, a second special fine filter, a first two-position three-way reversing valve, a second two-position three-way reversing valve, a second stop valve, a first checkvalve and a second check valve, and three filter precisions can be selected. An oil storage tank is connected with a main oil tank through an oil storage tank oil suction filter, an oil storage tankoil pump and an oil supplement connector in sequence. The three different filter grades are provided by the multifunctional hydraulic cleaning filter car and can be freely switched, and the on-site adaptability is high.

The invention provides a grabbing device for moving wall/floor tiles, which comprises a machine stand, an extraction cylinder, a limit pin, a grasp frame, a grasp cylinder, a grasp claw, a gauge board and a reset spring, wherein the body of the extraction cylinder is fixed in the machine stand; a fish eye joint is arranged on a piston rod of the extraction cylinder and is hinged with a connection block in the grasp frame through a hinging shaft; the limit pin is arranged at the lower end of the machine stand; the connection block is provided with a limit hole matched with the limit pin; one end of the reset spring is connected with the lower end of the machine stand, and the other end of the reset spring is connected with the grasp frame; the grasp cylinder is arranged at two end s of the grasp frame through a grasp cylinder seat; the piston rod of the grasp cylinder is connected with the grasp claw; and the gauge board is positioned on the grasp frame connected with two sides of the connection block. As the grabbing device in the scheme grabs from the upward side of wall/floor tiles and fully utilizes the characteristic that the upper edges of the wall/floor tiles are naturally together and tight when the wall/floor tiles are vertically placed and stacked, the grabbing device does not need to use special tightening devices, greatly simplifies the structure thereof, and is stronger in on-site adaptability in the grabbing process.

The invention relates to an intelligent asparagus harvesting machine and belongs to the technical field of agricultural machinery harvesting. Before green asparagus is harvested, an operation route isplaned; a navigation system controls the self-walking of the machine and sets the forward speed of the machine; during harvesting, the identification and height detection of the asparagus can be completed through an ultrasonic technology and an image recognition technology; sensors can generate signals to transmit to a processor when the heights of the green asparagus meet harvesting heights; theprocessor issues a cutting command so as to make corresponding air cylinders work; cutters are driven to complete the cutting of the asparagus; the cut asparagus is clamped and conveyed through a secondary collection roller, and is sent to a conveyor belt; and the conveyor belt conveys the asparagus to an asparagus collecting box at the rear part so as to accomplish the selective harvesting of the green asparagus. The machining is unmanned, automatic in navigation and flexible in clamping and conveying, can perform self-walking according to the planned route, and selectively harvests the green asparagus met height requirements, therefore, labor force can be liberated, and economic benefits can be enhanced.

The invention discloses a vertical flexible clamping and conveying device for brassica campestris and a harvesting machine. The vertical flexible clamping and conveying device comprises a driving system, and the driving system is connected with two conveying devices which are arranged in parallel and adjacent to each other. Each conveying device comprises a driving chain wheel connected with the driving system, a driven chain wheel connected with the driving chain wheel through an annular chain and a flexible clamping belt fixedly installed on the periphery of the annular chain. Under driving of the driving system, the two conveying devices rotate oppositely, the middles of the flexible clamping belts of the two conveying devices make contact with each other, and a plurality of vertical clamping spaces for the brassica campestris are formed. The vertical flexible clamping and conveying device is small and exquisite in structure, flexible in operation, good in field adaptability and small in damage to brassica campestris stalks, and brassica campestris can be orderly clamped and conveyed.

The invention relates to a field large-scale propagation method for harmonia axyridis. The method is characterized by comprising the following steps: (a) preparing pea aphids; (b) feeding egg laying adults; (c) collecting egg masses; (d) hatching eggs; (e) managing first-instar larvae; (f) inoculating second-instar larvae to fields; (g) carrying out field management on harmonia axyridis; and (h) carrying out field release of harmonia axyridis. The method has the advantages that harmonia axyridis is raised in the fields, so that the artificial culture cost, field transportation cost and field release cost are reduced, and the adaptability of released harmonia axyridis to field climate is improved.

The invention provides a radon thorium daughter fixed energy region proportion coefficient deduction algorithm. The algorithm comprises the following steps of acquiring a spectral line; performing smoothing and spectral drift correction on the spectral line; determining a spectral line energy region; training a support vector regression machine; and performing radon and thorium daughter deductionon the actually measured spectral line by utilizing the trained support vector regression machine. A radon thorium daughter deduction effect is a main factor affecting a minimum detection limit of a manual radioactive aerosol continuous monitor; and the support vector regression machine has high generalization ability, so that the algorithm has the advantages of global optimality, theory for smallsample statistics, good fitting characteristics for nonlinear curves and the like. The radon thorium daughters are deducted by adopting the support vector regression machine; the performance of the algorithm is superior to that of average value, empirical formula and neural network deduction methods adopted at present; and the deduction accuracy of the radon thorium daughters is improved, so thatthe minimum detection limit of the monitor is further reduced.