13 results about "Disadvantage" patented technology

The invention relates to an uncalibration machine vision-based intelligent navigation control system and an uncalibration machine vision-based intelligent navigation control method, and belongs to the technical field of automation and detection. In order to overcome the disadvantage that whether a technical effect is good or bad depends on uncalibration parameters in a conventional scheme, in vision system-based mobile robot real-time obstacle avoidance and a navigation control method in the technical scheme of the invention, an image is automatically acquired and analyzed for the purpose of realizing the control of a mobile robot platform; the image is processed rapidly from image feedback information obtained directly by utilizing the principal of machine vision; and feedback information is given in a time as short as possible for participating in the generation of a control decision so as to form the position closed-loop control of an end effector of the mobile robot. The scheme improves the adaptability and the work efficiency of a robot, effectively maintains the speed and the precision in an image processing process, enhances the robustness and the stability of a robot control system, and reduces cost input and energy consumption in an implementation process of the technical scheme.

The invention discloses compound antibacterial gel. The compound antibacterial gel is formed by mainly compounding benzalkonium bromide or benzalkonium chloride and oxidized graphene, wherein the weight ratio of the benzalkonium bromide or the benzalkonium chloride to the oxidized graphene is 1-10:2-6. The invention also discloses a preparation method of the compound antibacterial gel and applications of the compound antibacterial gel. The preparation method is simple. Characteristics of the benzalkonium bromide and the oxidized graphene are combined, and disadvantages that the benzalkonium bromide and the oxidized graphene individually are not antibacterial in a wide range at a certain concentration and are not easily recovered are remedied. The compound antibacterial gel has antibacterial activity for Gram-negative bacterium and Gram-positive bacterium simultaneously, and can be applied widely.

A disclosed separation apparatus for iron-filing waste slag comprises a motor base, a conveying belt and a motor driving the conveying belt to operate, and is characterized in that a position, at the initial position of the conveying belt, of the motor base is provided with a feeding bin, a discharging port at the bottom of the feeding bin is provided with a sensor; the rear of feeding bin is provided with a plurality of electromagnet rods installed on the motor base through a support, a material distribution bin is arranged at a position corresponding to the end of the conveying belt and below the motor base and is installed on support legs of the motor base through a rail, and the material distribution bin is connected with a servo motor through a gear and a rack. The separation apparatus overcomes the disadvantages of the prior art, and is reasonable in designed structure. According to the separation apparatus, the electromagnet is arranged on the conveying belt for adsorbing iron filings in iron-filing waste slag, after the sensor senses that conveying of the iron-filing waste slag in the feeding bin is finished, the electromagnet is power-off and iron filings fall on the conveying belt and are conveyed out, so that the purpose of separating iron filings from waste slag is realized. The separation apparatus helps to save labor, and is high in efficiency, high in separation rate for iron filings from iron-filing waste slag and wide in application scope.

The invention discloses a technology for producing potassium sulphate by a liquid-phase grouting method. The technology comprises the steps of adopting concentrated sulfuric acid or dilute sulphuric acid and industry waste acid and potassium chloride as a raw material; carrying out double decomposition reaction on sulfuric acid and potassium chloride in a liquid phase; producing potassium sulphate through concentrating and grouting processes, cooling the potassium sulphate, and simultaneously neutralizing a free acid by adopting calcium carbonate powder; and finally obtaining agricultural potassium sulphate meeting the GB20406-2006 standard. The potassium chloride is high in conversion rate and short in reaction time, and a potassium sulphate product is high in quality. Furthermore, the disadvantages of serious corrosion and high energy consumption of a Mannheim method are overcome; and the problems that other double decomposition methods are complicated in potassium sulphate production procedure and the product is low in quality are solved.

The invention discloses a new energy vehicle energy storage optimization control method based on a multi-objective genetic algorithm, which comprises the following steps: establishing a control strategy database of the vehicle-mounted energy storage system; establishing characteristic data module of vehicle energy storage system; establishing the evaluation module of multi-factor coupled energy storage system to evaluate the advantages and disadvantages of the current control strategy in the whole life cycle; a multi-objective genetic algorithm is used to optimize the energy-saving control strategies. By comparing and analyzing the effect of each control strategy, the optimal control strategy of new energy vehicle energy storage is obtained under the coupling of multiple factors. Under thecondition that the passenger comfort degree is ensured, the speed command designed by the invention can realize traction energy saving. The speed command obtained from the final design meets the requirements of non-dominated standards, which is very beneficial to the decision-making based on the time uniform distribution standard and the energy consumption sensitivity standard. Aiming at the energy-saving optimization of speed commands under various control strategies of energy storage system, the optimal control strategy of vehicle-mounted energy storage system can be obtained through the comparative analysis of its effects.

The invention provides a method for quickly identifying idioplasm of capsicum frutescrens L. by using an SSR (simple sequence repeat) molecular marker, and belongs to the technical fields of plant molecular marker-assisted idioplasm resource identification and seed breeding. The SSR molecular marker can be obtained by amplifying a primer shown in SEQ ID NO.1 to 2. The SSR molecular marker has theadvantages that the idioplasm of C.frutescens and the idioplasm of C.annuum can be distinguished; the operation is simple, the recurrence is good, and the accuracy is high; the disadvantage of difficulty in distinguishing the idioplasm of C.frutescens and the idioplasm of C.annuum in the phenotype identification method can be effectively overcome; the important function is realized in the pepper idioplasm resource identification and the molecular marker-assisted seed breeding.

The invention discloses a method for synthesizing a cyclooctatrieneindole derivative through manganese catalysis. The method takes cheap and commercial Mn(CO)5Br as a catalyst, and C-H bond activation, allene reaction and intramolecular 1,5-hydrogen migration cascaded reaction of a propargyl alcohol carbonate type compound and 3-alkenyl substituted-N-pyridylindole type compound are realized; undermoderate conditions, a cyclooctatrieneindole type framework can be constructed in a high-yield and high-selectivity manner. The method is simple to operate, low in catalyst dosage, moderate in reaction conditions and wide in substrate applicable range; the disadvantages that traditional synthesis of the compound needs to be carried out through a plurality of steps, a starting raw material is difficult to prepare, the substrate applicable range is limited and the like are overcome and the method has a very good development prospect.

The invention relates to a mixing device, particularly relates to a mixing device for manufacturing a high-reliability cable. The invention aims to provide a mixing device with a high automation degree and a good material mixing effect for manufacturing a high-reliability cable. The device comprises a mixing cylinder, a feeding cylinder I, a feeding pipe I, a valve I, a feeding cylinder II, a feeding pipe II, a valve II and the like. The feeding cylinder I is arranged on the left side of the upper part of the mixing cylinder; the feeding pipe I is connected to the lower end of the feeding cylinder I; the feeding pipe I is provided with the valve I; the feeding cylinder II is arranged on the right side of the upper part of the mixing cylinder; the feeding pipe II is connected to the lower end of the feeding cylinder II; and the feeding pipe II is provided with the valve II. The mixing device overcomes the disadvantages that the structure is complex, the automation degree is low, manpower and material resources are consumed, the material mixing effect is poor, and the like in the prior art, and reaches the effects that the automation degree is high, manpower and material resources are saved, and the mixing effect is good.

The invention relates to the technical field of petrochemical engineering, and especially relates to a method for preparing fuel oil by taking waste lubricating oil as a raw material. The method comprises the following steps: collecting waste lubricating oil as the raw material, distilling and collecting a fraction; mixing the fraction with water and a strong-acidic catalyst, and fully stirring and mixing the above three compositions to form a mixed solution; heating the mixed solution to 60-90 DEG C with stirring, and adjusting pH to 7 to obtain an oil-water mixture; after the oil-water mixture is stirred, standing to form an oil-water separation layer, distilling to obtain a fraction, performing hydrofinishing on the fraction, performing secondary distilling and collecting a fraction to obtain the fuel oil. By employing the method provided by the invention for preparing the fuel oil, multiple distilling is performed, and the reaction product is further subjected to deep hydrotreatment through catalytic hydrogenation, the prepared fuel oil is clarified and transparent, the disadvantages of landfill treatment of waste oil as a waste are solved, and the pollution to environment is reduced.

The invention provides a clamping device for a blanket in a blanket display stand, belongs to the field of daily living articles, and solves the technical problem that the existing clamping device forthe blanket in the blanket display stand completely shows disadvantages of the blanket to a visitor within a finite space. According to the clamping device for the blanket in the blanket display stand, the display stand comprises a base and a turntable arranged on the base. The clamping device comprises a plurality of display assemblies; roller shafts are rotationally connected to the display assemblies; hinge strips parallel to the roller shafts are fixed on the peripheries of the roller shafts; the hinge strips are hinged with clamping sheets; the inner side surfaces of the clamping sheetscan be completely attached to the peripheral surfaces of the roller shafts; fixed strips parallel to the roller shafts are arranged on the roller shafts; two ends of each fixed strip are respectivelyconnected with two ends of each roller shaft; the fixed strips can get close to or keep away from the roller shafts; when the fixed strips get close to the roller shafts, the clamping sheets can be pressed onto the roller shafts. The clamping device provided by the invention can completely show advantages of the blanket to the visitor within the finite space.

The invention discloses a novel panel type electronic socket, and pertains to the field of power socket manufacture. On a wall-type power socket, the distance between a two-jack socket and a three-jack socket is too short, so when a user want to use the two-jack socket and the three-jack socket on the power socket at the same time, the disadvantage of inconvenience can be realized; the novel panel type electronic socket can be used to effectively avoid the disadvantage. The novel panel type electronic socket of the invention is composed of two-jack sockets and a three-jack socket, the housing (1) of the power socket is set to be square, the three-jack socket (2) is arranged on the middle portion of the lower side of the housing (1), one two-jack socket (3) is arranged on the top left corner of the housing (1), and another two-jack socket (4) is arranged on the top right corner of the housing (1). The main objective of the invention is to facilitate the user the use the socket.