37results about How to "To achieve the effect of filtering" patented technology

The invention discloses a method for quickly extracting star points from star images. The method includes: according to a clustering concept, adopting part of star point pixels for coarse positioning of star points so as to realize rough estimation on center coordinates of star point dispersion regions; taking the center coordinates of the star point dispersion regions as seed points to automatically screen star point pixels according to a seed point area region growing method; according to characteristics of star point energy distribution, correcting gray values of the star point pixels; adopting a centroid calculation formula for precision positioning of the star points. Since star point extraction operations are centered in local ranges of the star point dispersion regions by means of coarse positioning of the star points, start point extraction speed can be increased; correction of the gray values of the start point pixels is simple and feasible, and image filtering effects can be achieved while more algorithm time and cost are saved as compared with those of image filtering.

The invention discloses a high-voltage output stage integrated circuit. The integrated circuit comprises a filter circuit and a modulation circuit; the filter circuit is connected with a RC (Resistance-capacitance) circuit in series, so as to filter out medium-high frequency clutters; the voltage is inputted into the modulation circuit after the voltage is stabilized and the proportion is amplified by an operational amplifier; the modulation circuit modulates the amplitude and outputs stable voltage by a thyristor and a three-end voltage-regulator tube; negative electrodes of the thyristor D4 and the thyristor D6 are divided into two paths to receive the voltage of the filter circuit; one path is connected with a capacitor C4 in series, so as to filter out the direct-current voltage in the alternating voltage by using the characteristic of circulating the alternating current and blocking the direct current of the capacitor C4; the other end of the capacitor C4 is connected with a negative electrode of the thyristor D5 and a control electrode of a three-end silicon controlled rectifier Q1; the thyristor D5 protects the circuit; if the potential of the control electrode of the three-end silicon controlled rectifier Q1 is too high, the three-end silicon controlled rectifier Q1 is reversely conducted to be connected with the ground; if the potential is too low, the three-end silicon controlled rectifier Q1 is not triggered to be conducted; in the same way, a same circuit is connected in parallel; the circuit consists of the thyristor D6 and a thyristor D7, a capacitor C5 and a three-end silicon controlled rectifier Q2. The integrated circuit effectively stabilizes the output voltage of the high-voltage integrated circuit, filters the frequency, and effectively regulates the abnormal voltage.

The invention discloses an LED light source device. The LED light source device comprises a cushion plate, an LED driver and an LED light source plate; the LED light source plate and the LED driver are installed on the cushion plate, the overall LED light source device is formed, and overall installing and overall replacing are facilitated. An LED substrate is provided with a plurality of through holes in which magnets are embedded, the upper end face of the LED substrate is provided with a fixing piece made from magnetic metal, the fixing piece covers the through holes, and the fixing piece and the magnets are mutually attracted magnetically; and the cushion plate is made from magnetic metal, the LED substrate is attracted to the cushion plate through the magnets, and installation is convenient. A non-polar thin-film capacitor C2 quite small in capacity is adopted for a driving circuit built in the LED driver to replace an electrolytic capacitor, the thin-film capacitor C2 is the same as the electrolytic capacitor in filtering effect, the thin-film capacitor C2 is good in stability, extremely high in anti-interference capacity and high in reliability, and the service life of a power source is greatly prolonged.

The invention is a vehicle engine twin power, which is arranged between a wire of a high tension coil and a joint of a spark plug. The twin power is provided with a capacitance and an inductance which are arranged in series, corresponding two external ends of the capacitance and the inductance are both provided with conductive batons in an extending way, the external parts of the capacitance and the inductance are coated with an insulating bush which is internally injected with waterproof adhesive to coat the capacitance and the inductance, and two ends of the insulating bush are concavely provided with a caulking groove respectively; so the conductive baton at the external end of the capacitance is inserted into a core of the wire, while the conductive baton at the external end of the inductance is inserted into the joint of the spark plug, when the engine of the vehicle is started, the capacitance stores electric charge so as to reach the effect of voltage regulation and filtration, and the inductance can change power, namely discharges instantly and reinforces electricity, thus enhancing ignition effect, facilitating complete combustion of fuel without carbon deposit, and improving vehicle power.

The invention relates to an ozone generation system with an oil, dust and water removal function. The system mainly comprises an air compressor, an air filter and an ozone generator. Due to the structural design of the air filter, air output by the air compressor produces multiple flows at different flow velocities in the air filter after entering the air filter, water, oil and dust particles in the air can be separated effectively, air almost containing no water, oil or dust particles is obtained by filtering to serve as an air source required for generation by the ozone generator, and the purposes of enhancing the quality of ozone produced by the ozone generation system and prolonging the service life of the ozone generator in the ozone generation system can be achieved really.

The invention provides high-efficiency energy-saving dust collection equipment which is characterized in that water vapor subjected to dust collection by wet dust collection equipment is led into second-stage dust collection equipment for further filtering; the gas pressure at an exhaust passage of first-stage dust collection equipment is less than the gas pressure at an inlet passage of the second-stage dust collection equipment by the action of blower compression; gas pre-filtered by the first-stage dust collection equipment is liquefied into mist at the inlet passage of the second-stage dust collection equipment, and then flows through a dimister in the second-stage dust collection equipment for further filtering. The water vapor can be liquefied into mist under a pressurization condition by taking a residual fine dust impurity as a condensation nucleus, the mist flows though the dimister in the second-stage dust collection equipment, the dimister gathers the fine mist together to become a liquid water drop, the impurity flows out of a second liquid outlet along with the liquid water drop, and filtered clean gas is discharged from a gas outlet, so that a further filtering effect is achieved.

The invention relates to the field of sewage treatment and provides a livestock-poultry slaughter house sewage treating and deodorizing device which comprises a box, a water inlet, top maintenance ports, middle delivery pipes, a water pump, a clear water storage tank and water outlets. The bottom end inside the box is fixedly connected with two layers of netty settling plates which are symmetric with each other, diamond-shaped holes penetrate the surface of each netty settling plate, the left side and the right side inside the box are fixedly connected with two layers of retaining plates in mutual symmetry, and two diversion pipes fixedly penetrate the tops of the retaining plates and are arranged at the top of the retaining plate on the left side inside the box. When a user uses the device, effect of settling dirt and impurities in sewage is realized through the netty settling plates, so that effect of effectively deodorizing the sewage by the device is realized; effects of last purification and tiny substance adsorption of treated sewage are realized through an activated carbon layer.