966results about How to "Avoid harm" patented technology

The invention discloses a robot eye-on-hand system structured light plane parameter calibration device and a method. According to the device, a camera and a laser device are installed at the tail end of a robot to form a robot eye-on-hand system, and on the premise of obtaining camera intrinsic parameters, plane parameters of structured light projected by the laser device are calibrated, and thereby structured light three-dimensional vision measurement can be achieved. The robot eye-on-hand system structured light plane parameter calibration method includes that a plane checkerboard target is placed in a calibration area, laser lights are projected on the target to form a first line structured light stripe, the robot is controlled to move in a constraint mode so as to project the laser lights to another position of the target to form a second line structured light stripe, the camera respectively acquires images of two structured light stripes at two calibration positions, the relation of three-dimensional coordinate of points on stripe straight lines under a camera coordinate system at the two calibration positions is calculated, and thereby the structured light plane parameter calibration with the structured light stripe straight lines serving as calibration elements can be achieved.

The invention belongs to the technical field of building materials, and in particular relates to an environment-friendly alkali-free liquid quick-setting agent used for shotcrete and a method for preparing the same. The alkali-free liquid quick-setting agent is a light green viscous liquid prepared from aluminum sulfate, sodium fluoride, triethanolamine and polyacrylamide, wherein the aluminum sulfate and the sodium fluoride are main quick-setting components, the aluminum sulfate can significantly reduce the initial setting time of cement, while the sodium fluoride can significantly shorten the final setting time of the cement, promote the formation of a hydrate structure, and improve the shear strength of the concrete and the binding power of a reinforcing steel bar. The triethanolamine shortens the setting time of the concrete to csertain extent and greatly improves the 1d compressive strength of mortar, and the polyacrylamide is an organic tackifying component to improve the thickness of a primarily sprayed layer, improve the bond strength between the concrete and a substrate, reduce the rebound loss in the spraying process, and save materials. The environment-friendly alkali-free liquid quick-setting agent has the advantages of wide source of raw materials, low cost, simple production method, and high production efficiency, and is suitable for industrial mass production.

The invention discloses a mechanical self-adaptive auxiliary docking platform which comprises a translational mechanism and a rotary mechanism, wherein the translational mechanism can realize two moving freedom degrees and one rotational freedom degree in a plane, the rotary mechanism can realize two quadrature rotational freedom degrees in a space and is arranged above the translational mechanism and used for controlling the on-off of an electromagnetic brake as well as separation and reunion of a wedged block to realize the functions of deadlocking and unlocking. The invention has the functions of sensitive self-adaptation and self-regulation and can prevent a workpiece from overlarge torsion generated during trace deviation in a coordination process, thereby enabling assembly to be successful and enhancing the assembly efficiency.

The invention discloses a method for detecting a DOS/DDOS (denial of service/distributed denial of service) attack. The method comprises the following steps of: firstly extracting needed flow characteristic parameters from network stream data, determining abnormal time points and constructing a historical time window by analyzing the flow characteristic parameters, and then finding out first N destination IPs (internet protocols) with maximum flows for the abnormal time points, determining an abnormal destination IP by analyzing sub streams including all the selected destination IPs in the horizontal time window, and finally, confirming the attack and recognizing an abnormal stream. The method is different from a conventional packet-by-packet analyzing method, adapts to the characteristic of the huge flow of a backbone network, can meet the requirement on real-time performance in the abnormality detection of the Backbone Network, can detect the DoS/DDoS attack more precisely in the backbone network, and can recognize an attack stream in the backbone network, so that a network manager can set a router in time, filters the flow sent by an attacker, and prevents the flow from harming a destination host.

A system and method for remotely programming a patient medical device (PMD) is presented. Programming instructions specified remotely are translated into commands formatted for a PMD to control functionality thereof. Correctness of the PMD-formatted commands is checked. Patient consent to modify the functionality of the PMD is confirmed. Application of the PMD-formatted commands to the PMD is controlled during a programming session initiated and performed remotely. The application of the PMD-formatted commands is confirmed through interrogation of the PMD to verify the functionality modified.

The invention discloses a photobioreactor which aims at providing a set of solution scheme for cultivating microalgae with simple production, convenient disassembly and high efficiency. The photobioreactor comprises a buffer/gathering system, a detecting device, a reaction region and a gas exchange device, wherein the buffer/gathering system is a transparent drum with a taper-shaped bottom and is connected with two pipelines respectively used for cycle cultivation and microalgae collection; the detecting device is introduced from the upper part of the buffer/gathering system; the reaction region comprises a plurality of circular transparent photoreaction tubes; and the gas exchange device is connected with the inner part of the reaction region. The photobioreactor realizes the circulation of a cultivation system through a peristaltic pump, adjusts the ventilation of each photoreaction tube through a gas pump and a plurality of gas valves, has simple and convenient operation and high mass transfer efficiency, and is suitable for fast cultivation of microalgae with a large number.

The invention discloses an automatic electric steam iron, which comprises an iron body and a steam sprayer. The automatic electric steam iron further comprises a guide rack, a first vertical guide, a second vertical guide, a horizontal guide and a movement control device, wherein the guide rack is used for hanging clothes hangers, the first vertical guide and the second vertical guide are fixedly connected to two ends of the guide rack, a first vertical slider capable of sliding along the first vertical guide is disposed on the first vertical guide, a second vertical slider capable of sliding along the second vertical guide is disposed on the second vertical guide, two ends of the horizontal guide are fixedly connected with the first vertical slider and the second vertical slider respectively, a horizontal slider capable of sliding along the horizontal guide is disposed on the horizontal guide, the horizontal slider is fixedly connected with the steam sprayer, and the movement control device is used for controlling sliding of the first vertical sider, the second vertical slider and the horizontal slider. The automatic electric steam iron can be used for automatic and intelligent clothes ironing, so that time spent by people to iron clothes is reduced.

The invention relates to an apparatus and a method thereof for finger rehabilitation exercise. The apparatus comprises a first knuckle fixing part, a second knuckle fixing part, a metacarpal bone fixing part and a pressure control device, wherein both the first knuckle fixing part and the second knuckle fixing part comprise knuckle fixing frames and fixed plates, and the knuckle fixing frames are arranged on the fixed parts; the metacarpal bone fixing part comprises a metacarpal bone fixing frame and a fixed plate; the metacarpal bone fixing frame is arranged on the fixed plate; the first knuckle fixing part and the second knuckle fixing part are connected by virtue of a first telescopic connecting part, and the first telescopic connecting part is a hollow structure; the second knuckle fixing part is connected to metacarpal bone fixing part by virtue of a second telescopic connecting part, and the second telescopic connecting parts is a hollow structure; the first telescopic connecting part and the second telescopic connecting part are communicated by virtue of a connecting pipe; and the second telescopic connecting part and the pressure control device are communicated by virtue of a pipe. According to the apparatus disclosed by the invention, the connecting part is driven by gas or liquid, so that the apparatus is quite good in flexibility and adaptability; and moreover, the apparatus is simple in structure and low in cost.

The invention discloses a liquid crystal alignment method includes the following steps: providing a first substrate and a second substrate; providing a liquid crystal layer between the first substrate and the second substrate, wherein the liquid crystal layer includes a liquid crystal composition, a monomer material and a polymerization initiation agent; executing a first exposal proceeding , in order to allow parts of the monomer material to polymerize to form two polymer steadily alignment layers, respectively a first contact face located between the liquid crystal layer and the first substrate, and a second contact face between the liquid crystal layer and the second substrate, in order to allow a plurality of liquid crystal molecules in the liquid crystal composition to align along a pre-inclination angle; and executing a second exposal proceeding , in order to allow the surplus monomer material to polymerize, wherein the second exposal proceeding uses light with the principal wavelength between 290 nanometer to 340 nanometer to irradiate the surplus monomer material. The liquid crystal alignment method can boost the reliability of the liquid crystal display board.

The invention discloses a controlling method, device and system of a robot. The controlling method comprises the following steps: acquiring an actual current value obtained by detecting a target motorby a current sensor, and calculating an actual output torque of the target motor according to the actual current value; acquiring positions, angle speed and angular acceleration of target joints andcalculating theoretical output torques of the target motor according to the positions, the angle speed and the angular acceleration of the target joints, wherein the target joints are mechanical arm joints, controlled by the target motor, of the robot; calculating a difference value between the actual output torque and the theoretical output torques; and controlling the robot to execute a safe andprotective action if the difference value is greater than a torque difference threshold. According to the embodiment of the invention, under a situation of ensuring that the robot is collided, the robot can actively trigger the safe and protective action, so that harm to operators caused by collision can be avoided; and meanwhile, damage to the robot caused by collision is also avoided.

The invention discloses a hydraulic superhigh-frequency vibrating power head and belongs to the field of shallow drilling and sampling. The hydraulic superhigh-frequency vibrating power head comprises a rotary motor, a coupler, a coupler box, a vibrator, a vibration damper, a spindle, a power head back plate and a support plate, wherein the rotary motor is connected with the upper end of the spindle via the coupler, and the spindle is vertically penetratingly arranged in the vibrator. The vibrator is connected with a bottom plate of the coupler box via the vibration damper and comprises a vibrator box, two groups of high-speed hydraulic motors, two eccentric shafts, a synchronous belt/ synchronous wheel forced synchronizing mechanism and a high-speed bearing cooling and lubricating device, wherein the two groups of high-speed hydraulic motors are symmetrically arranged on two sides of the spindle, the high-speed hydraulic motors drive the eccentric shafts to rotate via key joint, and the two eccentric shafts can realize synchronous running via the synchronous belt/ synchronous wheel forced synchronizing mechanism. The hydraulic superhigh-frequency vibrating power head is capable of conveniently and effectively realizing shallow drilling and sampling on various overburden layers, drilling speed is improved, and popularization is facilitated.

Provided is an operating method of an electronic device including a first processor, a humidity sensor, a second processor controlling the humidity sensor, and a battery, wherein the second processor and the battery are waterproofed. The method may include: detecting a power supply event from the battery; supplying a power from the battery to the second processor controlling the humidity sensor and not supplying the power to the first processor; determining, by the second processor, a humidity of the electronic device by using the humidity sensor; and when the humidity of the electronic device is greater than a first reference humidity, cutting off power supply from the battery and when the humidity of the electronic device is less than the first reference humidity, supplying the power to the first processor.

The invention discloses putty with the function of absorbing electromagnetic wave and belongs to the field of building material. The putty in each 100 mass portions contains 10 to 50 mass portions of a wave absorbing agent; the wave absorbing agent is one or a combination of nanometer Fe-graphite composite powder, manganese-zinc ferrite powder, manganese dioxide powder and acetylene black powder. The reflectivity of the putty to the electromagnetic wave of between 8 and 18 GHz is less than 5 dB below zero; and the putty can effectively absorb energy to attenuate the energy of reflected wave. When the putty is used as an inner wall coating material, the putty can effectively absorb the electromagnetic wave produced by indoor electrical appliances and the like and remove the influence of the electromagnetic wave on personnel; when the putty is applied to the outer wall, the putty can obstruct and absorb the electromagnetic radiation of a television, a mobile phone and other signal towers, protect personnel in a building from being suffered from the electromagnetic radiation, can also directly absorb the electromagnetic wave and avoid that the reflected electromagnetic wave causes harm to the personnel outside the building.

The invention discloses a preparation method of a high-performance repair adhesive tape for a photovoltaic module backboard. The high-performance repair adhesive tape for the photovoltaic module backboard comprises a fluorine coated layer, a base material layer, a functional adhesive layer and a release material layer which are sequentially arranged from top to bottom, wherein the fluorine coated layer is prepared from organic resin, a curing agent and an inorganic filler, and the base material layer is made from a plastic film material. By specially modifying acrylic acid pressure-sensitive adhesive, namely introducing an antioxidant and an ultraviolet absorbent in an adhesive system, the weather resistance, high temperature resistance and yellowing resistance properties can be greatly improved, and the adhesive tape is high in bonding strength and is not likely to shed. In addition, the back side of the base material layer is coated with the fluorine coated layer, a base material can be protected against yellowing, the adhesive tape is convenient to adhere and convenient to construct.

The embodiment of the invention discloses a method for visiting a server operation system and a device for visiting the server operation system; a safety verification device is installed in a server operation system, and contact information of an administrator is prestored in the safety verification device; after receiving the first login request sent by the client for visiting the server operation system, the first login request carries with a user name and a password; the user name and the password in the first login request are verified; after passing the verification, the verification code is sent to the corresponding device of the contact information according to the contact information of the administrator; after receiving the second login request sent by the client for re-visiting the operation system, the second login request carries with the user name, the password and the verification code; the user name, the password and the verification code carried in the second login request are verified; if the verification is successful, it is allowed to visit the server operation system. Through the safety verification twice, the safety of visiting the server operation system by the administrator is effectively promoted.

The invention relates to the technical field of textile machinery and discloses an automatic dust removing device for textile fabrics. The device includes a box body, a fabric uncoiling mechanism a fabric coiling mechanism. The box body is therein provided with a rough processing zone and a fine processing zone. The rough processing zone is therein provided with a first fan, a collection box, a first fabric conveying roller and a fabric support roller. The fine processing zone is divided into a dust removing area and a recycling area. The dust removing area is therein provided with a second fabric conveying roller and a brush roller. The recycling area is therein provided with a second fan connected with a second dust suction shade and a dust collection box. When dust removing operation isperformed on the fabrics, through preliminary processing in the rough processing zone and dust removing operation in the fine processing zone in the box body on the fabrics, cloth scraps, yarn, fluffand a large amount of dust and the like sticking to the surface of the fabrics are cleaned completely and the fabrics are coiled onto the fabric coiling mechanism.

The present invention discloses one kind of mechanical flexible spatial butt-jointing platform, and features that the mechanical flexible spatial butt-jointing platform has one mechanical flexible assembling platform comprising one pedestal, one joint body and one floating body. The pedestal has one circular groove in the upper end and balls distributed homogeneously inside the groove; the joint body is one truncated sphere, whose bottom plane is located inside the circular groove and contacted with the balls in the groove and spherical crown possesses homogeneously distributed balls; and the floating body covering the joint body has arced groove in the bottom surface to contact with the balls in the joint body. The present invention has the obvious effect of self-adaptive regulating function to ensure successful spatial butt-jointing with high quality and small torsional force.

The invention discloses an electric car charging collision control method and system; when the collision strength cannot reach the detonation threshold of airbags but battery security is affected, power can be cut off. The system comprises a plurality of collision sensors, a plurality of pressure sensors, an entire car controller, a power battery managing system, a power-off protector, a power battery, an airbag control unit, a dashboard, an alarming device, an airbag control unit and a security airbag system. The collision sensors and the pressure sensors are connected with the entire car controller, the entire car controller is connected with the power battery managing system, the airbag control unit, the dashboard and the alarming device, the power battery managing system is connected with the power battery through the power-off protector, and the airbag control unit is connected with the security airbag system. The system has the advantages that when the collision strength cannot reach the detonation threshold of the airbags but battery security is affected, power can be cut off; security risks result from failures of high-voltage power supply of a car can be avoided effectively, and security of the car and passengers can be protected effectively.

The invention discloses a flashlight control method and a flashlight control device based on age estimation. The flashlight control method comprises the following steps: performing face recognition according to the current captured preview camera data, and obtaining a recognized face image; performing age estimation on the face image, judging whether the face image is an infant face image according to age estimation results, automatically switching off the flashlight if the face image is the infant face image. Parents do not need to worry about forgetting to switch off the flashlight during photographing, so that the harms of hard light emitted by the flashlight on eye retina of the infant are avoided.

The invention provides an anti-static LED display screen and a manufacturing method thereof. The display screen comprises a PCB, a plurality of LED particles, a plastic frame and an anti-static layer, wherein the plurality of LED particles are arranged on the PCB; the plastic frame is arranged on the PCB; the plastic frame comprises a plurality of bulge parts which are arranged at intervals in the direction vertical to the PCB; the bulge parts and the PCB form a plurality of grooves; the LED particles are arranged in the plurality of grooves; and the anti-static layer covers the upper surface of the plastic frame. The anti-static LED display screen has the advantages that the anti-static layer attached to the surface of the anti-static LED display screen can play a shielding effect, increases the contrast and can avoid the damage of static electricity to the LED particles.

The invention discloses human body lubricating fluid. The human body lubricating fluid comprises, by weight, 18-25% of aloe extracts, 8-12% of pitaya flower extracts, 10-20% of euphorbia royleana, 8-12% of okra extracts, 8-12% of ginseng fruit extracts, 10-20% of matrine extracts, 3-8% of safflower extracts, 13-14% of dandelion extracts, 0.5-1% of food grade preservative and 0.5-0.8% of food grade essence. After the above extracts are prepared, the above components are mixed according to the proportion to be stirred evenly and fully and then subpackaged, and the human body lubricating fluid is obtained. The human body lubricating fluid is a pure natural plant extract and free of spermicide, has the functions of lubricating, moistening and caring of the human body and also has the diminish inflammation and bacteriostasis functions. The lubricant is free of sensitization, capable of being cleaned conveniently after being used, not oily, more hygienic and safer, and a user feels comfortable.

The invention discloses a rope-driven wearable upper limb rehabilitation training robot and a using method thereof. A flexible armor is worn on a trunk part of a user, corresponding shoulder belts, awaist belt and a chest belt are arranged at the portion, on the corresponding portions of the human body, on the flexible armor separately, a shoulder module is fixed to the shoulder part of the flexible armor, upper arm modules are worn on the upper arm portions of the user, and front arm modules are worn on the front arm portions of the user; the upper arm modules are connected with the front arm modules through rope assemblies, a driving backpack is arranged on the flexible armor and internally provided with a power control module and several motors, and all motor rotation shafts are provided with driving wheels for collecting or releasing the corresponding rope assemblies. By means of the rope-driven wearable upper limb rehabilitation training robot, rehabilitation training of the degree of freedom of adduction/abduction and flexion/extension of the shoulder joints and flexion/extension of the elbow joints can be achieved, and the robot can also be used for assisting in upper limbmovement in daily life, and has the advantages of being portable, lightweight and the like.

A process for preparing candles from soybean wax and paraffin wax includes such steps as proportional mixing, smelting in stainless steel container at 90+/-10 deg.C, pouring in stainless steel mould, cooling, and demoulding. Its advantages are no poison, and less pollution.

The invention provides a method for recovering precious metal from waste circuit boards and belongs to the field of waste resource utilization. The method comprises the following steps that (1) the circuit boards are pretreated, (2) silver is recovered, (3) chloridizing leaching is carried out, (4) gold is reduced through nitrite, and (5) palladium is reduced through hydrazine hydrate. Compared with the prior art, the method is advantageous in that the recovery cost is lower, the process is short, environmental friendliness is achieved, and the recovery rate of the precious metal is high.

An enclosed daylight greenhouse cooling apparatus comprises a spraying atomizing system and a condensation heat-radiation system. The spraying atomizing system comprises a water conveying pipe, a condensate water storage tank, a high-pressure water pump, a condensate water collection pipe, condensate water collectors, a spraying pipe, atomizing nozzles, greenhouse built-in separation films and film pressing lines. Condensation heat-radiation system comprises a gravity heat pipe heat exchanger, a cold water tank, a water pump, a hot water storage tank, an axial flow draught fan, an exhaust pipe and a backwind pipe. By the use of the enclosed daylight greenhouse cooling apparatus, problems of large water and heat resource waste due to the employment of ventilating cooling and wet curtain draught fan cooling in the prior facility agriculture, and pest and disease occurrence due to the entrance of germs and pests to the greenhouse through the ventilating port and the draught fan port can be solved; and the enclosed daylight greenhouse cooling apparatus can be simply operated, possesses safety and high efficiency and integrates functions of energy and water conservation, temperature reduction and moisture reduction.

The invention relates to a method for manufacturing a halogen-free flame retardant nylon sticky buckle strap, which comprises the following steps of: cleaning, dyeing, dehydration, sizing finishing, drying, retardant finishing, hot melt adhesive finishing and the like of the nylon sticky buckle strap. In the halogen-free flame retardant nylon sticky buckle strap manufactured by the method, dyes, a sizing finishing agent, a flame retardant finishing agent and a hot melt adhesive finishing agent which used in the production process do not contain halogen or heavy metal, adopt a water-based finishing agent and has zero release and no environmental pollution; compared with the prior art, the halogen-free flame retardant nylon sticky buckle strap improves the flame retardant effect, prevents the burning process from releasing toxic gas, has high visibility and meets the fireproofing safety standard of the American Boeing company and German rail vehicles; and when the halogen-free flame retardant nylon sticky buckle strap is used for sticky buckle straps of vehicles, the safety of persons and the vehicles is improved.

The invention discloses a radioactive aerosol sampling device, which is suitable to be fixed on an aircraft. The radioactive aerosol sampling device comprises a sampling tube, a sampling assembly, a detecting assembly, a processor assembly and a power supply, wherein a sampling cavity is arranged in the sampling tube; the sampling assembly is used for acquiring aerosol in air flowing through the sampling cavity; the detecting assembly comprises a temperature and humidity sensor, an air pressure sensor, a flow sensor and a GPS (global position system) antenna; the processor assembly is connected with the detecting assembly, and used for converting analog signals into digital signals and storing the digital signals; and the power supply is respectively connected with the processor assembly and the detecting assembly, and used for supplying power to the processor assembly and the detecting assembly. The radioactive aerosol sampling device disclosed by the embodiment of the invention has the advantages of small volume, short sampling time, wide sampling area, unrestricted sampling positions, large acquisition quantity, comprehensive data acquisition, and capability of improving the security of workers in accident areas, and the like.

The invention discloses a corrugation self-check double-protection compensator. The compensator comprises an operating corrugated pipe, both ends of the operating corrugated pipe are provided with aninlet end pipe and an outlet end pipe respectively, a draft tube and an external protection tube are provided in and outside the corrugated pipe respectively. The compensator is characterized in that:a connection flange is welded between the operating corrugated pipe and the outlet end pipe, a protective corrugated pipe is connected between the connection flange and the external protection tube,and the protective corrugated pipe is sheathed on the outlet end pipe, and the external protection tube is fixedly provided with a leak detection device. The compensator has the advantages of being capable of ensuring flow quantity and flow rate of media, the protective corrugated pipe act sealing effect to protect the operating corrugated pipe from corrosion by external sewage and impurities, thus prolonging service life of the compensator; the compensate can continue work even the operating corrugated pipe present leakage, thus providing double protection; the protective corrugated pipe hasprotection and compensation effect, thus being capable of avoiding environment hazards caused by media leakage, so the compensator is especially applicable to pipes for conveying toxic and harmful dangerous media.

The invention provides a technical method for rapid gas extraction standard reaching in broken soft, low-permeability and outburst coal seam by replacing roadways with holes. The method comprises thefollowing steps that S10, a large-diameter super-long directional drilling hole is constructed on the basic top layer of a coal seam roof or the old bottom layer of a coal seam floor; S20, the spacingd of small-curvature-radius branch drilling holes arranged in a penetrating mode in the coal seam to be excavated and the number n of the small-curvature-radius branch drilling holes are determined according to the drilling hole gas extraction influence radius r of coal seam to be excavated and extraction standard reaching time; S30, a retreat branch method is used for constructing the small-curvature-radius branch drilling holes; S40, a special permeability improvement device for underground coal mine is used for performing gas phase fracturing permeability improvement or combination of hydraulic fracturing and gas phase fracturing permeability improvement on the small-curvature-radius branch drilling holes until a plurality of sections of three-dimensional fissures are formed; and S50,connecting pipelines extracts the gas in the coal seam until the gas content of the coal seam meets extraction standard reaching. The construction method can achieve low-cost, long-distance, dense, controllable, high-efficiency extraction of the gas from the coal seam.

The present invention discloses one kind of air floated flexible spatial butt-jointing platform including one self-regulating mechanical butt-jointing platform, and features that the self-regulating mechanical butt-jointing platform has one air floated flexible assembling platform comprising one pedestal, one air bag, one floating body set on the pedestal, one locating pin and one locating spring. The pedestal has in the upper end one circular groove to hold the air bag and locating hole to hold the locating spring and the locating pin, which stretches beyond the locating hole and into the position-limiting hole in the lower end of the floating body. The present invention has the obvious effects of the flexible contact between the pedestal and the floating body and the self-adaptive regulating function of the butt-jointing platform to ensure successful spatial butt-jointing with high quality and small torsional force.