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79results about How to "Reduce subsequent maintenance costs" patented technology

Positioning and navigation method and device based on ground texture

The invention provides a positioning and navigation method and device based on ground texture. The positioning and navigation method comprises: acquiring a ground texture image of a current frame; performing first registration of registration processing on the ground texture image of the current frame and the ground texture image of the reference frame, wherein the registration processing system is used for solving discrete frequency domains corresponding to feature points on frequency spectrums of two ground texture images at least through a discrete phase correlation method so as to obtain relative displacement and a relative angle between the two ground texture images; and in response to the successful first registration, determining the position information of the current frame based on the position information of the reference frame and the relative displacement and the relative angle between the reference frame and the current frame. The invention also provides a positioning andnavigation device for realizing the positioning and navigation method. The positioning navigation method and device provided by the invention have the advantages that the ground texture matching calculation speed is high, the local and global positioning is accurate, and the stability and the adaptability are higher.
Owner:上海懒书智能科技有限公司

Borrowing-and-returning equipment of mobile power source and control method thereof

The invention provides borrowing-and-returning equipment of a mobile power source and a control method thereof. The borrowing-and-returning equipment of the mobile power source comprises a support part and a door opening-and-closing part which are mutually connected, wherein the door opening-and-closing part comprises a door opening-and-closing motor, a rolling shaft provided with gears and a doorprovided with racks, the rolling shaft is arranged on the support part, the door opening-and-closing motor is connected to the rolling shaft and drives the rolling shaft to rotate, and the gears arematched with the racks; the support part comprises a door support, the door is slidingly connected to the door support, and the door support is provided with a through hole capable of being used for the mobile power source to enter and exit. According to the borrowing-and-returning equipment of the mobile power source, through cooperation connection between the gears and the racks, when the gearson the rolling shaft are driven by the door opening-and-closing motor to rotate, the racks conduct linear motion along with the gears on the rolling shaft are driven by the door opening-and-closing motor to rotate, the door provided with the racks moves on the door support, and therefore door opening or door closing is achieved. The door opening-and-closing mode adopts a high-reliability gear-rackcooperation connection mode, the abnormal working condition caused when an electromagnetic valve faults is avoided, user experiences are improved, and meanwhile the follow-up maintenance cost is reduced.
Owner:深圳嘟嘟物联科技有限公司

Long-term forest eco-hydrology water yield automation dynamic measurement method and device

A long-term forest eco-hydrology water yield automation dynamic measurement method and device relate to a forest eco-hydrology water yield measurement method and device. The invention aims at solving the problems that dynamic process research cannot be realized by the existing artificial measurement, the artificial measurement precision is low, and unpredictable data loss is caused by a harsh environment. The method comprises the steps: a measurement point is selected, a sample land is built, and a penetration rain water flow rate, a trunk runoff flow rate and a surface and soil runoff flow rate are obtained by utilizing an eco-hydrology water yield dynamic measurement device and calculating with corresponding flow rate formulas. The device comprises that a plug of a lower end port of a water level measuring tank is drilled to mount an ABS water tank joint, the ABS water tank joint is connected with a normally closed solenoid valve and a liquid level transmitter, water level probes are mounted on a water level measuring barrel, a solar cell panel is erected, and the solar cell panel, the liquid level transmitter, the water level probe I, the water level probe II and the solenoid valve are connected to a controller. The invention is used for long-term forest eco-hydrology water yield automation dynamic measurement.
Owner:NORTHEAST FORESTRY UNIVERSITY

Chemical reaction purification device

The invention discloses a chemical reaction purification device which comprises a reaction cylinder; a plurality of supporting legs are fixedly connected to the bottom of the reaction cylinder, antiskid bases are fixedly connected to the bottoms of the supporting legs, a sealing cover is fixedly mounted at the top end of the reaction cylinder, a pair of L-shaped liquid inlet pipes are fixedly connected to the surface of the sealing cover, and a driving motor is arranged between the liquid inlet pipes; and the driving motor is fixedly mounted on the surface of the sealing cover, the output end of the driving motor is fixedly connected with a transmission shaft, the inner wall of the reaction cylinder is fixedly connected with a partition plate, and the transmission shaft is rotatably arranged on the surface of the transmission shaft. Compared with the prior art, when chemical raw materials enter from the liquid inlet pipes, the surface of a driving plate can be impacted, the driving plate can deform in the rotating process, the chemical raw materials can be pushed to the outer side in the stirring process, the reaction efficiency of the chemical raw materials is improved, the situation that the chemical raw materials are not fully reacted due to too high feeding speed is avoided, and the waste of the chemical raw materials is reduced.
Owner:樊宗波

Centrifugal self-locking damping mechanism and photovoltaic device

The invention provides a centrifugal self-locking damping mechanism and a photovoltaic device, and relates to the photovoltaic field. The centrifugal self-locking damping mechanism comprises a locking body and a cylindrical rotating body, the middle part of the locking body is provided with a cylindrical slot matched with the rotating body, one end of the rotating body is inserted into the cylindrical slot and is rotatably connected with the cylindrical slot, a lock pin part capable of sliding out outwards is embedded in the rotating body, at least one group of clamping grooves matched with the lock pin part are formed in the upper part of the cylindrical slot, the front end part of the lock pin part slides out and is inserted into the clamping grooves to brake the rotating body, and when sudden change external acting force is applied to the photovoltaic panel, the photovoltaic panel pulls the rotating body to rotate through the steel wire rope, the lock pin part embedded in the rotating body slides outwards under the action of centrifugal force until the front end part of the lock pin part slides out and is inserted into the clamping groove, and then the rotating body is braked, so the damping effect is achieved, the application range is wide, and the follow-up maintenance cost is low.
Owner:晟维新能源科技发展(天津)有限公司

Outer wall leveling putty and preparation method thereof

The invention discloses outer wall leveling putty which is prepared from the following matters in parts by mass: a first component and a second component, wherein the first component is prepared from30 to 35 parts of cement, 30 to 35 parts of pigment filler, 25 to 40 parts of sand, 0.25 to 0.6 part of cellulose, 0.3 to 0.6 part of wood fiber, 0.2 to 0.4 part of PP fiber, 1 to 2 parts of rubber powder and 2 to 4 parts of bentonite; the second component is prepared from 60 to 80 parts of synthetic resin, 20 to 40 parts of water, 0.1 to 0.3 part of bactericide and 0.3 to 0.5 part of a mineral oil defoaming agent; the mass ratio of the first component to the second component is 1 to (0.30 to 0.35). The invention further provides a preparation method of the outer wall leveling putty. The outerwall leveling putty disclosed by the invention has the following advantages of good constructability and filling and leveling performance, large bonding strength, good water resistance, good flexibility and strong crack resistance; follow-up maintenance cost is reduced, engineering construction quality is improved, and engineering construction cost is saved; the preparation method of the outer wall leveling putty has the advantages of simpleness, easiness, practicability and easiness in volume production and popularization.
Owner:重庆兴渝新材料研究院有限公司

A method and device for automatic and dynamic measurement of long-term forest ecological hydrology and water volume

A long-term forest eco-hydrology water yield automation dynamic measurement method and device relate to a forest eco-hydrology water yield measurement method and device. The invention aims at solving the problems that dynamic process research cannot be realized by the existing artificial measurement, the artificial measurement precision is low, and unpredictable data loss is caused by a harsh environment. The method comprises the steps: a measurement point is selected, a sample land is built, and a penetration rain water flow rate, a trunk runoff flow rate and a surface and soil runoff flow rate are obtained by utilizing an eco-hydrology water yield dynamic measurement device and calculating with corresponding flow rate formulas. The device comprises that a plug of a lower end port of a water level measuring tank is drilled to mount an ABS water tank joint, the ABS water tank joint is connected with a normally closed solenoid valve and a liquid level transmitter, water level probes are mounted on a water level measuring barrel, a solar cell panel is erected, and the solar cell panel, the liquid level transmitter, the water level probe I, the water level probe II and the solenoid valve are connected to a controller. The invention is used for long-term forest eco-hydrology water yield automation dynamic measurement.
Owner:黑龙江曲率科技有限公司

Face recognition equipment with light interference resisting function

The invention discloses face recognition equipment with a light interference resisting function, which comprises a base, a vertical frame is fixed at the top of the base, and a mounting ball is movably arranged at the top of the inner side of the vertical frame in an embedded manner through a torsional spring; the device further comprises a pedal plate, the pedal plate is installed in a top groove formed in the top of the base, the positioning groove is formed in the top of the base, the top of the pedal plate is located above the base in a protruding mode, the bottom of the first oil tank is connected with a second oil tank through an oil conveying pipe, and a second piston plate is installed in the second oil tank. A reset rod is fixed to the side of the rack, and one side of the rack is meshed with a tooth roller. And the telescopic groove is formed in the top of the inner side of the vertical frame. According to the face recognition equipment with the light interference resisting function, by sensing the treading positions of people of different heights, angle adjustment is achieved, the recognition camera is protected, light is shielded, meanwhile, internal light can be dispersed, and the light supplementing effect is improved.
Owner:CHIZHOU VOCATIONAL & TECHN COLLEGE

Wet chemical treatment equipment for printed circuit board

The invention discloses wet chemical treatment equipment for a printed circuit board. The wet chemical treatment equipment comprises a rack, and a top cover is mounted at the top of the rack; the device further comprises a first motor, the first motor is fixed to the bottom of the rack, a guide column is sleeved with a movable column, the top of the movable column is located above the rack, a second motor is installed in the top of the movable column in an embedded mode, the protruding position of the top of a gear is sleeved with a push strip, and an adjusting plate is located in an adjusting groove. The replacement groove is formed in the bottom of the mounting plate, one end of the first clamping plate and one end of the second clamping plate are located below the mounting plate, an inner groove is formed in the edge of the bottom of the mounting plate, a movable ejector rod is connected to one side of a transverse plate through a rotating shaft, and a spoiler is connected to a cavity in the bottom of a mounting strip through a reset spring. According to the wet chemical treatment equipment for the printed circuit board, continuous operation can be carried out, occupied space is reduced, and meanwhile uniformity and efficiency are improved during deposition.
Owner:东莞塘厦裕华电路板有限公司

Electrical line fire early warning Internet-of-Things sensing terminal and system based on current mutual inductance

PendingCN109166262ASatisfy runningAvoidance of unsustainable gapsBatteries circuit arrangementsElectric powerCapacitanceThe Internet
The invention provides an electrical line fire early warning Internet-of-Things sensing terminal and system based on current mutual inductance. The terminal comprises a sensing unit, a host and a current transformer. The sensing unit comprises three temperature sensors respectively for detecting the temperature of a measuring point and the environment temperature of an incoming binding post and the surface temperature of the incoming line, a humidity sensor and a smoke sensor; the host is used for obtaining temperature, humidity and smoke data collected by the sensing unit and uploading the temperature, the humidity and the smoke data to an upper computer device; the current transformer is used for charging a built-in super-capacitor of the host by inducing current of a firing line of a user and providing electric energy for the host and the sensing unit through the super-capacitor. The terminal can realize electrical fireproof terminals and systems that are simple to install, do not need wiring or have as little wiring as possible; meanwhile, the various sensors of the terminal can provide a data foundation for subsequent data processing and application such as big data analysis based on the Internet of Things.
Owner:上海枫昱能源科技有限公司

Self-cleaning positive pressure ventilation system of industrial factory building

The invention relates to the technical field of industrial factory buildings, and discloses a self-cleaning positive pressure ventilation system of an industrial factory building. The self-cleaning positive pressure ventilation system comprises a bottom plate, a shell is fixedly mounted on the top surface of the bottom plate, the shell is of a rectangular frame structure, a right side plate is fixedly mounted on the right side of the shell, the right side plate is of a rectangular structure, a positive pressure ventilation mechanism is arranged on the right side plate, a detachable mass filtering mechanism is arranged on the left side of the bottom plate, a moving mechanism is arranged on the bottom face of the bottom plate, the positive pressure ventilation mechanism comprises right side ventilation holes, five right side ventilation holes are formed in one side of the right side plate, and two driving motors are fixedly installed on the left side of the right side plate. By arranging the right side plate, the driving motors arranged on the right side plate are started, rotating shafts of the driving motors rotate to drive rotating blocks to rotate, meanwhile, rotating plates are arranged on the rotating blocks, the rotating plates are driven to rotate when the rotating blocks rotate, air flow is generated when the rotating plates rotate, then air on the left side of the device is blown to the left side of the device through the acting force of the rotating plates, and thus the positive pressure ventilation effect is achieved.
Owner:DESIGN INST NO 9 MINISTRY OF MECHINE BUILDING

Automobile PU foaming mold cavity surface ceramic plating process

The invention relates to an automobile PU foaming mold cavity surface ceramic plating process. The automobile PU foaming mold cavity surface ceramic plating process includes the following steps that 1), the surface of an automobile PU foaming mold cavity is cleaned and degreased, a mold is heated to 385 DEG C, and then heat preservation is carried out for 30 min; 2), sand blasting is carried out, specifically 70-100-mesh quartz sand is sprayed; 3), after the mold is cooled to 40-60 DEG C, spraying of ceramic plating coating is started, a coating tool is used for uniform spraying, the ceramic plating coating is sprayed to the mold once, and the thickness of a coating formed after spraying is 30-50 micrometers; and 4), after the mold is heated to 120 DEG C after spraying is completed, heat preservation is carried out for 10 min, after the mold continues to be heated to 180 DEG C, heat preservation is carried out for 10 min, finally, after the mold is heated to 220-240 DEG C, enamelation is carried out for 30 min, and after the mold is naturally cooled, ceramic plating is completed. The automobile PU foaming mold cavity surface ceramic plating process has the beneficial effects that the ceramic coating can resist the high temperature of 600 DEG C, and therefore the similar problems can be effectively avoided through the ceramic coating.
Owner:NANTONG CHAODA EQUIP CO LTD

Rear suspension bracket and using method thereof

InactiveCN108790806AMeet the design requirements of low stiffnessImprove buffering effectControl devicesInterference fitVehicle frame
The invention discloses a rear suspension bracket, and further discloses a using method of the rear suspension bracket. The rear suspension bracket comprises a bracket II, a bracket I connected with atransmission, a bushing I and a bushing II, wherein the bushing I and the bushing II are connected to an auxiliary vehicle frame. The bushing I and the bushing II are press-mounted in the auxiliary vehicle frame in an interference fit mode after being spliced and assembled. A cavity connected with the bracket II is formed between the bushing I and the bushing II. One end of the bracket II is connected with the bracket I, the other end of the bracket II is inserted into the cavity and connected in a fastened mode through a fastener, and thus a rear suspension system is connected with the auxiliary vehicle frame. The using method of the rear suspension bracket comprises the following steps that 1, the bushing I and the bushing II are spliced and assembled together and press-mounted in the auxiliary vehicle frame; 2, the bushings are press-mounted in mounting holes I in the bracket I, and the bracket I and the bracket II are connected through a fastener; 3, the bracket II is inserted into the cavity formed between the bushing I and the bushing II and connected through the fastener; and 4, the end, away from the bracket II, of the bracket I is connected to the transmission through a fastener.
Owner:ZOTYE INT AUTOMOBILE TRADING CO LTD
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