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66results about How to "Widely used" patented technology

Measuring method and electronic measuring device for oil-water content in oil storage tank

A method for measuring the oil-water content in an oil storage tank and an electronic measuring device, the measurement method is: according to the relationship between the total liquid level height and the static pressure of the liquid column in the oil storage tank to be tested, and the relationship between the density and temperature of oil and water, and at the same time Measure three parameters such as liquid level, hydrostatic column pressure, temperature, etc., calculate the oil and water density according to the measured temperature value compensation, and then calculate the oil and water content; the measuring device is mainly composed of a cane cylinder, a liquid level sensor, Liquid level measurement float, temperature sensor, pressure sensor, electronic device, operation and indication device, battery pack, handle, data interface, etc. The measurement parameters are sampled and stored in the electronic memory of the measurement device, which can be connected and transmitted to the computer The system is convenient for batch and daily calculation processing and data management. Combined with supporting computer software, the historical trend curves of oil well fluid production and oil production can be drawn conveniently by using these data.
Owner:XI'AN PETROLEUM UNIVERSITY

Bluetooth and two-dimensional code-based ticket checking system and method

The invention relates to the ticket checking field for public transportation and particularly provides a Bluetooth and two-dimensional code-based ticket checking system and a method. According to the technical scheme of the invention, firstly, a mobile intelligent terminal acquires a pull-in consumption certificate via a request support platform to generate a two-dimensional code, and a ticket-checking POS machine scans the two-dimensional code to obtain the consumption certificate. After that, through the decryption and the business logical judgment, a processing result is broadcasted in the Bluetooth manner. At the same time, the mobile intelligent terminal acquires the broadcast data through the Bluetooth canning process and then generates a reply in the form of a two-dimensional code based on the acknowledgement information after the analytic judgment process. Finally, the ticket-checking POS machine scans the new two-dimensional code to obtain the replay information and then judges weather to open a ticket barrier or not. In this way, a reliable communication mechanism is formed based on the cooperation of the two-dimensional code and the Bluetooth broadcasting manner. The system and the method can be applied to the ticket checking process in subways, public transportation and the like, wherein the flow rate of visitors is large.
Owner:咪付(广西)网络技术有限公司

Coin distinguishing apparatus and its method for distinguishing

The invention relates to a coin identifying or discriminating device and method, especially relating to the discrimination of the true coins from the false coins. The method vertically slides the tested coin along a guiding groove down onto a substrate, collects a sound signal emitted by the coin as striking the substrate through sound sensor, directly sends the sound signal or sends the sound signal amplified by a power amplifier to a frequency spectrum analyzing device for making frequency spectrum analysis so as to obtain an inherent frequency of the tested coin, and compares the inherent frequency with a standard data in a frequency spectrum standard memory for making frequency spectrum discrimination; then uses a pressure sensor to measure the weight of the tested coin and sends the generated force signal amplified by a power amplifier into a weight analyzing device and calculates to obtain the weight of the tested coin and compares it with a standard data in a weight standard memory for making weight discrimination; then by an operational policy maker, synthetically analyzes and obtains the final discrimination result. The discriminating device has simple structure, lower manufacturing cost, and high identifying accuracy, applied to identification of various coins and having a wide application prospect.
Owner:UNIV OF SCI & TECH OF CHINA

Three-dimensional vegetable planting device and planting method thereof

The invention relates to a three-dimensional vegetable planting device and a planting method thereof. The three-dimensional vegetable planting device comprises planting bags and a planting frame. Each planting bag is made from nylon net, and in the shape of a cylinder, a cone or a hollow cylinder, planting belts made from non-woven fabrics are uniformly arranged at the outer layer of each planting bag, the planting belts and the outer layer form sowing grooves, a hollow cylinder body is arranged in the center in the inner layer of each planting bag, a shading cover is arranged on the upper portion of the hollow cylinder body, a spray nozzle is arranged in the middle portion of the shading cover, a hook is arranged to the top, and a water absorbing layer is arranged in the bottom of the hollow cylinder body. A vegetable planting matrix is injected between the outer layer of each planting bag and the inner layer of each planting bag, and a hard base is arranged under the matrix and provided with soil humidity sensors. The hollow cylinder body is an inverted cone, and the bottom is open. The planting bags are hanged to the planting frame through hooks in order. By adopting the three-dimensional vegetable planting device and the planting method thereof, the number of vegetables in unit area can be raised, and the vegetables can well absorb sunlight to carry out photosynthesis and are in ventilation because the vegetables are hanged in the air.
Owner:宁波江北卉秾现代农业专业合作社

Energy substitution type self-power generation airplane of using electricity to substitute for fuel oil

The present invention discloses an energy substitution type self-power generation airplane of using the electricity to substitute for the fuel oil. The energy substitution type self-power generation airplane is characterized in that an uninterrupted power supply (UPS) is installed on an airplane body, a commercial power charger, a super capacitor, a battery pack, an AC-DC rectifier, a DC-AC inverter and a static bypass switch are connected according to a circuit mode to form the UPS, and the UPS is also in parallel connection with a Laval power system; the Laval power system is formed by installing a plurality of gas turbine generator sets in at least one Laval pipe, the Laval pipe is formed by connecting a contracted pipe (1), a throat pipe (2) and an expanding pipe (3) in series, and thegas turbine generator sets (4) are installed at the expanding pipe (3) having the maximum speed in the Laval pipe. The energy substitution type self-power generation airplane of the present inventionis a technology of generating the power based on the relative airflow of the Laval pipe for the airplane, different flow velocities generate the power, the efficiency is high, the power is large, theloading capacity is strong, and the great dreams of the people of using the electricity to substitute for the fuel oil are realized.
Owner:李士明

Induction cooker and pot detection method

The invention provides an induction cooker and a pot detection method. The induction cooker comprises a pot detection circuit. The pot detection circuit comprises a controller, an IGBT control circuit and a resonance circuit which are sequentially connected with one another, wherein the controller controls the resonance circuit through the IGBT control circuit so that the resonance circuit generates two paths of resonance signals, and the controller obtains the two paths of resonance signals and detects whether a pot is arranged on the induction cooker according to the two paths of resonance signals. The pot detection circuit further comprises a current detection circuit between the controller and a power supply; and the controller judges whether the pot is qualified according to the working current of the current detection circuit. According to the induction cooker and the pot detection method provided by technical schemes of the invention, the pot is detected through control signals sent by the controller and the current magnitude of the current detection circuit, and therefore, the accuracy of the detection of the pot can be ensured, the service life of the induction cooker can be prolonged, and the induction cooker will not be easily damaged during a subsequent use process.
Owner:ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD

Binaural hinge support

The invention discloses a binaural hinge support. The binaural hinge support comprises a horizontal fixed plate, a first vertical fixed plate, a second vertical fixed plate and four hornblocks with the same structure, wherein the first vertical fixed plate and the second vertical fixed plate are symmetrically welded on the center of the lower surface of the horizontal fixed plate; two sides of the horizontal fixed plate are provided with multiple threaded holes, the four hornblocks are square, a rounded corner is formed in a vertex angle, two hornblocks taken as a group in four hornblocks are symmetrically distributed on the upper and lower surfaces of the horizontal fixed plate, and two vertical surfaces of each hornblock are welded on the horizontal fixed plate and the corresponding vertical fixed plate; shaft holes are formed in the four hornblocks, the shaft holes of the two hornblocks in the same group are homocentric, the other sides of the first vertical fixed plate and the second vertical fixed plate are respectively provided with two stiffeners, each shaft hole is internally provided with a wear-resistant coating. The binaural hinge support adopting the structure is capable of ensuring the strength requirement under a heavy load condition, and meanwhile the welding type is adopted, so that the whole processing cost is lower, and the binaural hinge support can be widely used.
Owner:LIUZHOU CHAOLIN MACHINERY

Adsorption mechanism

The invention discloses an adsorption mechanism. The adsorption mechanism is used for adsorbing to position workpieces and comprises a substrate, wherein the substrate is used for placing workpieces; the substrate comprises an adsorption surface in which a plurality of air suction holes are formed; an air duct is formed in the substrate; the air duct penetrates through at least one side surface of the substrate to form a main air hole; the main air hole is used for being connected with an external vacuum device so that the air duct can present negative pressure; a plurality of holding holes are alternately formed in the side surface of the substrate; each holding hole is communicated with a corresponding air suction hole in the adsorption surface; and the plurality of holding holes are communicated with the air duct; the adsorption mechanism furthermore comprises operating rods which can be rotatably held in the holding holes; first air holes are formed in the operating rods along the length direction; the first air holes are communicated with the air duct; a plurality of second air holes which are communicated with the first air holes are alternately formed in the circumferential surfaces of the operating rods; and the second air holes are communicated with the corresponding air suction holes along with the rotation of the operating rods.
Owner:FU DING ELECTRONICSAL TECH JIASHAN +2
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