45results about How to "Efficient control" patented technology

The invention discloses a high-tension transmission line inspection robot based on a multi-rotor aircraft, which comprises a four-rotor aircraft and an inspection system, wherein a double-power module supplies power to the four-rotor aircraft and the inspection system; the four-rotor aircraft comprises a robot body, four rotors, four rotor motors and four rotor motor drivers, the rotors, the rotor motors and the rotor motor drivers are matched, the four rotors are fixedly arranged on respective rotor motors, and the four drivers are respectively connected with respective rotor motors 3; and the inspection system performs shooting and data transmission on high-tension transmission lines. The robot disclosed by the invention performs air flight inspection based on four rotors, and is high in air flight stability and good in inspection speed. Through wireless camera shooting control, a visible light camera can be moved to a position near a suspected fault point so as to realize the emphasized detection of suspected fault points of the high-tension transmission lines.

The invention discloses a method for automatically controlling growth of 85-120kg sapphire crystals. The method comprises the step of sapphire crystal seeding and is characterized in that an electronic weighing device used for measuring the crystal weight is arranged in a single crystal furnace and sends a weight signal to a PLC (programmable logical controller) system; after sapphire crystal seeding is finished, the PLC judges the crystal growth stage in the growth process according to the crystal weight, calls out the process parameter packet of the corresponding stage and adjusts the parameters via PID (proportion integration differentiation); when the crystal net weight measured by the electronic weighing device exceeds 3-5kg, the PLC adjusts the temperature reduction amplitude and controls the sapphire crystals to grow in an isodiametric manner; when the crystal weight measured by the electronic weighing device exceeds 45-70kg, the PLC adjusts the temperature reduction amplitude and controls growth of the sapphire crystals to end; and when the reduction amplitude of the heater powder computed by the PLC exceeds 15-20%, the sapphire crystals are automatically transferred to the cooling and inflating stage and leave from the pot, thus completing growth.

The invention relates to a method for controlling a wind generating set under strong wind, which comprises the following steps of: A, monitoring the state of the generating set, executing a step B when a fan runs normally, and stopping the generating set when the fan fails; B, monitoring the wind speed, stopping the generating set when the wind speed is greater than a maximum running wind speed, and executing the step A when the wind speed is less than or equal to a cut-out wind speed, otherwise, executing a step C; and C, reducing power output. The invention provides a safe and efficient control mode; based on a normal wind generator control strategy, a concept of strong wind control curve is introduced so that the wind generating set still runs normally under a high wind speed working condition and is combined to the grid while reducing the wind load influence; and the method improves the utilization rate and power generation quantity on the premise of ensuring the safety of the fan, meanwhile eliminates a parameter of restarting wind speed, avoids redundant start-stop processes, and prolongs the service life of the fan.

The invention discloses a navigation deviation correction method for a mobile robot, comprising: obtaining a navigation map of the working environment of the mobile robot and a planned movement route; collecting environmental information of the mobile robot during the moving process, and obtaining current pose information of the mobile robot according to the environmental information; According to the mobile planning route and the current position and orientation information of the mobile robot, the navigation deviation correction control information is obtained; according to the navigation deviation correction control information, the deviation generated when the mobile robot moves is corrected in real time. In addition, the invention also discloses a navigation deviation correction device for a mobile robot. Through the present invention, the deviation generated during the movement of the mobile robot can be corrected in real time, so that the mobile robot can accurately arrive at the destination. The navigation deviation correction method and the navigation deviation correction device of the present invention are simple and practical, low in implementation cost and high in accuracy.

The invention provides a wireless router based intelligent device scene control method and system. The wireless router based intelligent device scene control method comprises the steps of identifying an intelligent device to which the wireless router is connected and registering basic information and a service interface of the intelligent device; regarding an event of connecting or disconnecting the wireless router with a control terminal as a triggering condition, associating the triggering condition with operation of the registered service interface of the intelligent device, and configuring a scene strategy; monitoring a connection state of the control terminal and the wireless router, generating event information for indicating connection or disconnection of the control terminal; and operating the service interface of the corresponding intelligent device based on the event information for indicating connection or disconnection of the control terminal and the pre-configured scene strategy, and carrying out scene action. According to the wireless router based intelligent device scene control method and system, scene linkage and automatic control of multiple intelligent devices are realized, the control mode is efficient, simple, convenient and flexible, the control system is safe and reliable, and the user experience of an intelligent home system is improved greatly.

An universal pulse width modulation integrated circuit for electronic current transformer of electric power consists of a set of parameter setting registers , a data interface circuit , a digital tracking circuit of three phase synchronous phase angle , a clock frequency division circuit for sampling , a triggering signal generation circuit for sampling , a calculation circuit of reference voltage , a data format switching circuit of reference voltage , a pulse width modulation calculating circuit , K numbers of the same switch state output time sequence control circuit and K numbers of the same switch state switching circuit .

An object of the present invention is to provide an optical modulator having a plurality of optical modulators, which can be configured with a simple structure, and can appropriately set the DC bias of each optical modulator during the normal operation of the optical modulator. A bias control method of a corrected optical modulator and an apparatus thereof. For an optical modulator (1) having a plurality of optical modulation sections, the bias control device (B) of the optical modulator for controlling the DC bias in the plurality of optical modulation sections includes: a DC bias applying mechanism (3) for applying a DC bias to the plurality of optical modulators; a low frequency signal (fB) superimposed on a modulation signal (b) applied to the plurality of optical modulators with a low frequency signal (fB) having a specific frequency A signal superimposition circuit (2); a photodetection mechanism (9) for detecting the light quantity change of the light wave passing through the wave superposition part; extracting the light quantity change corresponding to the low-frequency signal from the light detection mechanism, and simultaneously based on the extracted light quantity Change, a bias control mechanism (4) that controls the DC bias application mechanism.

The invention discloses an intelligent cooperative control method of multiple contaminants in coal-fired industrial source flue gas. The intelligent cooperative control method comprises the followingsteps: (1) enabling to-be-processed flue gas to enter into an SCR (Selective Catalytic Reduction) denitration system to remove NOx, wherein the denitration system adopts a honeycomb type catalyst, anda denitration reducing agent is fully mixed with the flue gas by adopting a spraying form; (2) enabling the gas processed in the step (1) to enter into an electric-bag integrated dust removal system,and improving charged quantity of particles by adopting a critical pulse power technology to purify smoke dust in the gas; (3) enabling the flue gas processed in the step (2) to enter into a wet process desulfurization system, performing desulfurization by adopting an improved lime/ limestone-gypsum process desulfurization absorbent; mixing the desulfurized absorbent sprayed and atomized by a flue gas ejector with the flue gas to carry out adsorption removal of heavy metal mercury. According to the intelligent cooperative control method of the multiple contaminants in the coal-fired industrial source flue gas disclosed by the invention, the removal efficiency of the multiple contaminants can be effectively improved, operation energy consumption is reduced, and a system error ratio is reduced; moreover, remote centralized operation, maintenance and fault diagnosis on the system can be achieved.

The invention discloses a fast transit charging method for vehicles with multiple benefits based on a credit system. The fast transit charging method for vehicles with multiple benefits based on the credit system comprises the following steps: 1) vehicle information identification is performed when the vehicle enters or leaves a charging area; 2) the vehicle information after successful identification is transmitted to a cloud server; 3) a charging platform matches the vehicle information data on the cloud server, calculates according to a charging rule to obtain the toll fee combining the vehicle charging related data, and sends the fee information to the vehicle owner to prompt the vehicle owner to pay the fee in a limited time; and 4) if the fee is not paid successfully within the payment time limit, the charging platform sends information of penalty payment to the vehicle owner; and if the fee is not paid during a period of default, the transit information is recorded in a dishonesty blacklist. The fast transit charging method for vehicles with multiple benefits based on the credit system can ensure that the vehicle owner pays the fee after a certain period of time while ensuring the rapid transit of the vehicle, therefore, the influence on the transit speed caused by situations such as the expense or pre-stored fee of the account is insufficient is avoided; and the fast transit charging method for vehicles with multiple benefits based on the credit system has various economic and social benefits and has a wide application range.

Embodiments of the present invention are generally directed towards providing systems and methods for grouping and updating of security key chains. In particular, embodiments of the present invention are configured to allow users to easily and automatically analyze, group and update keychains and associated applications with such keychains.

The invention discloses a control system of an intelligent logistics transfer robot for teaching competition, and the control system comprises a main control module which is connected with a visual detection module, a walking control module, a transfer control module, a start control module and a power supply control module. By means of the robot, in a set competition field, according to competition rules, the functions of target position recognition, autonomous path planning, autonomous movement, two-dimensional code reading, carrying task display, material color recognition, material shape recognition, material grabbing and carrying control of the robot can be achieved.

The invention discloses a composite premix for controlling alcohol positive milk, and a preparation method and an application thereof. The composite premix comprises the following raw materials in weight percentage: 37 to 47% of sodium citrate, 11 to 21% of sodium propionate, 11 to 21% of potassium iodide, and 21 to 31% of yeast cell wall polysaccharide. The composite premix for controlling alcohol positive milk, prepared by the preparation method disclosed by the invention, can effectively adjust and control the ion metabolism in the dairy cattle, so that the alcohol positive milk can be effectively controlled; and the composite premix can be massively applied to industrial production and actual operation.

The invention relates to a bactericidal composition in the field of pesticide compounding. The active ingredients of the bactericidal composition are fluopyram and iprodione in a mass ratio of 1-40:40-1, preferably 1-20:20-1, further preferably 1-15:15-1; the total active ingredients account for 1 to 90 percent, 20 to 60 percent preferably in the bactericidal composition, and the rest is acceptable auxiliary components allowed to be used in the pesticide; and the bactericidal composition is prepared into emulsifiable concentrate, wettable powder, water dispersible granules and a suspending agent. The bactericidal composition compounded by the fluopyram and iprodione serving as the active ingredients according to a certain ratio has obvious synergy for controlling diseases such as powdery mildew and downy mildew of vegetables, fruit trees and the like.

The invention provides a method for controlling main insect pests such as citrus psylla, leaf miners, aphids, whiteflies and red spider mites by combining root application and predatory mite release.According to the method, systemic pesticides are applied under crown water drips during spring shoot, summer shoot and autumn shoot germination, predatory mites (amblyseius barkeri) are released by spreading in the first ten days of June and first ten days of September, and at least 1000 predatory mites are released to each tree averagely. Chemical control and biological control can be organicallycombined, leaf spraying is replaced by root application, the predatory mites cannot be killed by pesticides, the technology of 'using predatory mites to control pest mites' can be used while citrus pests are controlled by chemical pesticides, so that usage of the pesticides is decreased, the use frequency of the pesticides can be decreased by 7-10 times every year, control cost is reduced, and pest control efficiency is improved.

The invention relates to a dry-wet separation combined mining belt conveyor transshipment dust remover and a dust removal method. The dust remover comprises a dry type dust isolation device, a power supply device and a wet type dust removal device which are sequentially communicated. The dry type dust isolation device comprises a dust isolation cavity and a dust collection flow guide cavity whichare communicated with each other; the dust isolation cavity is an L-shaped cavity with four closed sides and four opened sides; dry-wet separation of dust can be realized, and the process is independent and closed; the influence of the spraying process on the physicochemical properties of coal and rock materials and the air humidity of a working space can be effectively avoided, the spraying waterconsumption and the sewage recycling amount can be greatly reduced through centralized spraying, and the beneficial technical effects of small negative influence, high dust removal efficiency, low operation cost, good environment-friendly performance and the like are achieved.

The invention relates to the technical field of communication, in particular to a secure private call system of intelligent voice equipment, which comprises a docking module used for accessing a PSTN(Public Switched Telephone Network) through an SIP (Session Initiation Protocol) so as to enable voice data of a fixed-line telephone to be transmitted in a VoIP (Voice over Internet Protocol) transmission mode; a media server used for acquiring the data of the docking module and sharing the voice data to a local area network; intelligent voice equipment used for accessing the Internet and a localarea network through a network port, wherein the intelligent voice equipment is in butt joint with the media server through the network port; a service platform used for controlling and managing theintelligent voice equipment; wherein the service platform can also provide a private number, so that the intelligent voice equipment can dial through the virtual number. According to the invention, asecure private call can be carried out in a manner of combining the Internet with the intelligent voice device, so that the fixed-line telephone is not restricted by a telephone line, and a fixed-linetelephone user is prevented from being disturbed.

The invention discloses a compound rhizobium inoculant as well as a preparation method and application thereof. The preparation method of the compound rhizobium inoculant comprises that turfy soil is taken as a carrier, ammonium molybdate, peanut seedling powder, gamma-polyglutamic acid, cane sugar, calcium carbonate and organic silicon are taken as synergist auxiliaries, and bradyrhizobium sp arachis (BASWS) and bacillus thuringiensis BtR05 fermentation liquor are made into powder, wherein effective bacterial count of the BASWS in the powder is 0.1-0.4 billion/g, and the effective bacterial count of the BtR05 is 0.6 billion/g. The compound rhizobium inoculant can be used for effectively preventing and controlling white grubs and can also be used for obviously increasing peanut yield.

The invention belongs to the technical field of agricultural biology, and particularly relates to Beauveria brongniartii BRNS50206 and an application thereof. The Beauveria brongniartii BRNS50206 is taken as a biological insecticide, has high toxicity on target pests, can realize good control effect and facilitates reduction of use of chemical pesticides in plant protection, and meanwhile, a strain is non-toxic and harmless to people and livestock, is environmentally friendly and pollution-free and guarantees crop safety and ecological safety.

The invention discloses a traditional Chinese medicine composition for preventing and treating duck colibacillosis and a preparation method and application thereof. The composition is mainly preparedfrom the following components in parts by weight: 2-4 parts of humifuse euphorbia herb, 2-4 parts of radix fici simplicissimae, 2-4 parts of radix berberidis, 2-4 parts of calyx seu fructus physalis,1-1.5 parts of pericarpium granati and 1-1.5 parts of liquorice root. The composition is compounded according to the traditional Chinese medicine compatibility theory, is safe and effective, and can effectively prevent and treat waterfowl diarrhea and duck colibacillosis.