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57results about How to "Clear connection" patented technology

Indoor WLAN signal map drawing and mapping method based on image edge detection signal correlation

The invention relates to an indoor WLAN signal map drawing and mapping method based on image edge detection signal correlation. The method includes the step that firstly, RSS sequences collected by a random user are utilized to construct clustering charts of received signal strength (RSS) sequences through spectral clustering; secondly, a signal logic diagram of the random user in a located object area is constructed by the utilization of the image edge detection method; next, mapping between RSS clustering nodes in the signal logic diagram and area position nodes in a physical environment diagram is established according to corresponding mapping rules; finally, position estimation on a target user is achieve by the utilization of the mapping relation between the signal logic diagram and the physical environment diagram, and meanwhile the signal logic diagram and the physical environment diagram are drawn by the utilization of drawing techniques. The method has the advantages that the readability of the diagrams is improved, and the connection relation between the nodes in the signal logic diagram and the nodes in the physical environment diagram are clearer.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Movable-type static synchronous compensator with compact structure design

The invention discloses a movable-type static synchronous compensator with a compact structure design. The compensator has high compensation capacity and rapid adjusting speed and compact structure, is convenient for transportation, and can be rapidly transferred, installed and put into operation at the urgent place needs reactive power support, thus the planning, the arrangement and the operation of a dynamic reactive power compensation device of a power grid are more flexible and effective. The movable-type static synchronous compensator comprises three functional module containers with the same structure, an auxiliary equipment container and a movable base, wherein, the functional module container comprises a single-phase converter chain and a converter chain arrester; the auxiliary equipment container comprises a control protective system, a water-cooling system and a three-phase starting loop; and the movable base comprises a connection reactor, a main breaker, an isolation switch and an earthed switch. The compensator provided by the invention has the obvious advantages of rapid response speed, wide adjustment application, low harmonic output content, adoption of compact design, mobility, less occupation area and the like.
Owner:CHINA EPRI SCIENCE & TECHNOLOGY CO LTD +2

Transceiving switch antenna array module for active millimeter wave imaging system

The invention provides a transceiving switch antenna array module for an active millimeter wave imaging system. The transceiving switch antenna array module comprises a transmitting antenna array, a receiving antenna array, an isolation strip, a transmitting switch array and a receiving switch array; the transmitting antenna array, the receiving antenna array and the isolating strip are structurally integrated into a whole module, and comprise a 24-path transmitting antenna unit and a 24-path receiving antenna unit; the shape of the transmitting switch array and the structure of the receivingswitch array are consistent, wherein each of the transmitting switch array and the receiving switch array is provided with a 24-path transmitting channel and a 24-path receiving channel separately; the transmitting antenna array, the receiving antenna array, the transmitting switch array and the receiving switch array are fixedly assembled to form a radio frequency transceiving front-end basic function module; a power amplifier PA is arranged at the front stage of a single-pole three-throw switch SP3T in the transmitting switch array, and the saturation output power is 20 dBm; and a low-noiseamplifier LNA is arranged between a single-pole eight-throw switch SP8T and the single-pole three-throw switch SP3T in the receiving switch array.
Owner:西安恒帆电子科技有限公司

Water purifier performance testing bench

The invention discloses a water purifier performance testing bench used for testing performance of water purifiers before delivery. The water purifier performance testing bench comprises a stand, which is provided with a pure water flow meter, a waste water flow meter, a booster pump pressure test meter, a raw water pressure test meter, a raw water inlet valve, a waste water outlet valve, a pure water outlet valve, and four adapters. The second adapter is connected with the water inlet of the pure water flow meter, and the water outlet of the pure water flow meter is connected with the pure water outlet valve. The fourth adapter is connected with the water inlet of the waste water flow meter, and the water outlet of the waste water flow meter is connected with the waste water outlet valve. The first adapter and the third adapter are connected with the booster pump pressure test meter by a tee. A raw water box is disposed in a cabinet disposed in the lower part of the stand, and is connected with an inlet of a raw water pump. The outlet of the raw water pump is connected with the raw water inlet valve and the raw water pressure test meter at the same time. The testing bench is advantageous in that the testing meters, the valves, and the adapters are integrated into one body, and by simple pipe connection, the performance tests of a plurality of water purifiers are carried out at the same time, and in addition, operation is easy, and efficiency is high.
Owner:安徽省泽业环保科技有限公司

LED display and LED control system

The invention discloses an LED display and an LED control system. The display comprises an LED display panel and a display drive circuit. The display drive circuit consists of a switching circuit, a drive circuit and a control circuit; a first terminal of one of the switching circuit and the drive circuit is connected to a power terminal of a power supply unit and a first terminal of the other one of the switching circuit and the drive circuit is connected to a grounding terminal of the power supply unit; a second terminal of one of the switching circuit and the drive circuit is connected with an anode of the LED display panel and a second terminal of the other one is connected with a cathode of the LED display panel. The control circuit includes a power supplying control circuit and a drive control circuit; the power supplying control circuit is connected with a third terminal of the switching circuit of a power supplying control port; and the drive control circuit controls conduction or cutting off of the drive circuit. According to the invention, the switching circuit, the drive circuit and the control circuit are integrated to the display drive circuit; and effects that the area of the panel occupied by the control circuit of the LED display is small, the design is simple, and the refresh rate is high can be realized.
Owner:LEYARD

PCR detection system, kit and detection method for detecting vibrio parahaemolyticus

The present invention relates to a PCR detection system, a kit and a detection method for detecting vibrio parahaemolyticus. The PCR detection system comprises a first primer pair and a first detection probe for detecting tlh gene, a second primer pair and a second detection probe for detecting tdh gene, and a third primer pair and a third detection probe for detecting ureR gene. The PCR detectionsystem for detecting the vibrio parahaemolyticus is based on simultaneous detection of three genes of the tlh, tdh and ureR, and can accurately distinguish specific types of the vibrio parahaemolyticus. The PCR detection system has good compatibility, very high specificity and sensitivity, and a detection limit of 15 copies / ml. At the same time, the PCR detection system can directly use cells asa template for detection, and a detection effect is equivalent to that of using DNA as a template. Therefore, a one-step method from samples to detection can be achieved without DNA extraction of thesamples.
Owner:GUANGDONG SHUNDE IND DESIGN INST GUANGDONG SHUNDE INNOVATIVE DESIGN INST +1

Heterogeneous rigid-flexible board and multilayer board card manufacture method based on same

The invention discloses a heterogeneous rigid-flexible board. The heterogeneous rigid-flexible board comprises rigid printed boards, flexible printed boards and inter-board connectors. The inter-boardconnectors for controlling the stacking height between every two adjacent rigid printed boards are welded to one ends of the rigid printed boards. The adjacent rigid printed boards are in signal communication through the inter-board connectors. One ends of the flexible printed boards are connected to the rigid printed boards, and the other ends of the flexible printed boards are connected to board cards detachably. The rigid printed boards and the board cards, which are connected correspondingly, are in signal communication through the flexible printed boards. The heterogeneous rigid-flexibleboard has the advantages that personalized and customized design demands can be met, limited workpieces can be fully utilized for optimal design, and the heterogeneous rigid-flexible board is simplein structure and has high market competiveness. The invention further discloses a multilayer board card manufacture method based on the heterogeneous rigid-flexible board. The multilayer board card manufacture method has the advantages of simple process and high working efficiency.
Owner:CHENGDU GUORONG TECH

Bridging electrical cabinet

The invention discloses a bridging electrical cabinet and belongs to the field of electrical cabinet technologies. The bridging electrical cabinet comprises a cabinet body, wherein the cabinet body isdivided by a transverse plate into an upper cabinet part and a lower cabinet part, a plurality of circuit boards are installed on a backboard of the cabinet body, and a bridging trunking is installedbetween every two adjacent circuit boards; each bridging trunking comprises a bridging trunking part and a trunking part, wherein the two ends of the bridging trunking part are provided with arc-shaped slot frames respectively, the arc-shaped slot frames are installed on the backboard through screws, the trunking part is installed between the two arc-shaped slot frames, and the two ends of the trunking part are installed on the backboard through bolts; and a lateral slot is installed on the periphery of the plurality of circuit boards. According to the bridging electrical cabinet, by arranging the bridging trunkings on the backboard where the circuit boards are densely installed, the density and disorder of connecting wires in a single trunking are reduced, and wiring in the electrical cabinet is clearer.
Owner:彭应贵

Method for controlling microscopic bubble nucleation in fluid polymer material production and its apparatus

A method for controlling microscopic bubble nucleation in fluid polymer material production and its apparatus that utilizes a gas pipe disposed in the conveyance screw shaft of a conventional injection or extraction forming mechanism and, furthermore, a microbubble generating component (such as a microscopic perforation vented metal head or a microscopic perforation ceramic head, etc.) installed at the front extremity of the conveyance screw shaft. At the rear extremity of the gas pipe, a pressurization pump or a high pressure gas storage tank is admitted from an air intake opening, enabling the gas to be indirectly heated by an electric heater on the materials pipe. The high temperature gas is thereafter outputted from the microscopic perforations of the microbubble generating component such that high temperature microscopic bubbles are directly admitted into the section of liquid polymer material which is then uniformly amalgamated by the conveyance screw shaft and then deposited into a forming die. As a result, high pressure gas conveyance or termination is controllable; control is afforded as to whether each section of liquid polymer material is microbubble nucleated and amalgamated. The present invention thereby provides a microbubble nucleation production method in which the non-bubble nucleated is at the surface and the bubble nucleated is at the interior section when the liquid polymer material is poured into a forming die.
Owner:EVERFOCUS WORLDWIDE

Heat dissipation illuminating lamp base convenient to overhaul

The invention belongs to the technical field of illuminating equipment, and discloses a heat dissipation illuminating lamp base convenient to overhaul. The lamp base comprises a dustproof lamp base, the top of the dustproof lamp base is provided with a connection shaft sleeve, a wire burying device and heat dissipation through holes, the wire burying device is arranged among the heat dissipation through holes, an installation support is installed in an inner cavity of the connection shaft sleeve, two sets of limiting clamping plates, an elastic part and a heat dissipation fan are arranged in an inner cavity of the dustproof lamp base, and an LED illuminating lamp installation plate is arranged between the two sets of limiting clamping plates. Since the wire burying device is arranged on the top of the dustproof lamp base, arrangement is convenient when an installation circuit inside the dustproof lamp base is connected to the outside world, connection between a connection circuit inside the dustproof lamp base and the outside world is clear, a circuit maintainer can overhaul and maintain or repair the circuit inside the dustproof lamp base in the later period conveniently, the maintenance or repair difficulty is reduced, the labor cost is reduced, and the later-period maintenance cost is reduced.
Owner:NANJING YA XIN LIGHTING CO LTD

Timer

The invention discloses a timer. The timer comprises a power indicator lamp, a control plate, a regulation and control key, a drawing block, a display screen, a timer main body, an outer wall, a through hole, a buckle, a battery cover plate, a power switch, a supporting leg, a retractable cavity, a supporting plate, a damping sponge, a circuit board, a support frame, a battery box, a cavity and abase, wherein the outer wall is mounted on the outside of the timer main body; the through hole is formed in one side of the outer wall; the drawing block is mounted in the outside of the outer wall in an inlaid manner and is connected with the supporting leg through the retractable cavity; the support frame is mounted on one side of the drawing block and is mounted in the cavity in an inlaid manner; the base is mounted at the bottom of the cavity; the battery box is mounted in the base; the bottom of the battery box is connected with the battery cover plate through the buckle; and the batterycover plate is mounted on one side of the timer main body. The timer is assembled and supported, and has damping and antifogging functions, and use convenience is improved.
Owner:浙江红巨星电气有限公司

Radar alarm safety fence

InactiveCN111080944AAvoid accidental trippingNo fear of the groundBurglar alarmEmbedded systemRadar signals
The invention, which belongs to the field of electronic protection alarm equipment, particularly relates to a radar alarm safety fence comprising a warning device, a supporting rod, a supporting rod connector, a base, a hanging ring and a warning tape. The warning device is movably connected with the top end of the supporting rod through the supporting rod connector based on threads, the base is movably connected with the bottom end of the supporting rod through the supporting rod connector based on threads, the hanging ring is arranged on the supporting rod, the warning tape is connected withthe installed warning device, and the supporting rod and the base form a safety fence. The radar alarm safety fence is simple in structure, flexible to use, reliable in performance, convenient to install, low in requirement for the ground and strong in radar signal; all on-site personnel are reminded through alarm, so that hidden danger of the personnel in work is eliminated, and high safety is guaranteed.
Owner:LUOHE POWER SUPPLY OF HENAN ELECTRIC POWER CORP
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