46results about How to "Block connection" patented technology

The invention relates to the field of wireless network application and discloses a false-AP detecting and blocking method, a wireless device and a router. By broadcasting a Beacon message carrying a specific encrypted field and receiving Beacon messages broadcast by peripheral APs, whether SSIDs carried in the received Beacon messages are identical with an SSID of a self AP or not is judged; when the SSIDs carried in the received Beacon messages are identical with the SSID of the self AP, whether the encrypted field is carried in the Beacon messages or not is judged, it is detected that the AP sending the corresponding Beacon message is a false AP when the encrypted field does not exist in the corresponding Beacon message, and a De-Authentication message for canceling identity authentication is sent to a client side to block connection between the client side and the false AP. The false AP is effectively identified, and the client side is blocked and protected against the risk that personal information is stolen due to the fact that the client side is connected with the false AP.

The invention discloses a preparation method of a carbon fiber and silicon dioxide nanosphere synergically filled ultra-high molecular weight polyethylene wear-resistant material and relates to the field of nanotribology, in particular dispersion of a nano material in high molecular resin and tribological properties thereof. The preparation method comprises the following steps: firstly, modifyingthe carbon fibers with nitric acid to obtain nitric acid modified carbon fibers; loading silicon dioxide nanospheres on the surfaces of nitric acid modified carbon fibers by means of a sol-gel processto obtain a composite material of silicon dioxide nanospheres and carbon fibers, and performing surface coupling treatment to obtain coupled composite packing; and finally, mixing the coupled composite packing with ultra-high molecular weight polyethylene, and performing hot pressing and sulfidizing to obtain the carbon fiber and silicon dioxide nanosphere synergically filled ultra-high molecularweight polyethylene wear-resistant material. The composite material has relatively good mechanical property, frictional wear-resistant property, mortar wear property and machine shaping property.

The present invention provides a network flow detection method, and comprises the following steps: a) adopting a flow control system to calculate the average rate of protocols according to the historical information of the protocol of the data packet and the information carried by the data packet; b) judging whether the data packet of the protocol should be controlled according to the average rate of protocols, which is calculated in the step a); and c) controlling the data packet which satisfies the control condition. Compared with the prior art, the method has the following advantages: the rate estimation algorithm based on the historical time window is adopted to accurately calculate the rate of the current protocol flow; the flexible and convenient configuration can be used for simultaneously controlling a plurality of protocols which are combined freely; the efficiency of the system is improved; only the protocol to be controlled needs processing, while others need no processing; the bypass type access brings convenience and can not form network bottlenecks; the system is simple and can be easily realized; and the system can achieve the accurate flow control.

The invention discloses an efficient lime powder sprayer, belongs to powder sprayers in the technical field of powder spraying and aims to provide an efficient lime powder sprayer. The efficient lime powder sprayer comprises a material barrel, a feeding adjusting hopper is arranged in an inner cavity of the material barrel, a feeding port of the feeding adjusting hopper penetrates out of the top of the material barrel, the bottom of the material barrel is connected with a driving motor, and a vibration stirring device is arranged in the material barrel and connected with the driving motor. One end of the bottom of the material barrel is connected with a discharging pipe, one end of the discharging pipe is communicated with a blowdown pipe, the middle of the blowdown pipe is communicated with the discharging pipe, and the other end of the blowdown pipe is connected with a fan. A secondary smashing device for protecting high-speed air flow from reverse flowing is further arranged between the material barrel and the blowdown pipe, the two ends of the secondary smashing device are communicated with the material barrel and the blowdown pipe through the discharging pipe, and the discharging pipe between the secondary smashing device and the material barrel is connected with an air inlet adjusting valve.

The invention relates to an energy-saving electric control valve and an electric control fuel system. The energy-saving electric control valve comprises a shell, a driving source, a guide rod, a firstvalve element, a second valve element and a compressible component. The electric control fuel system comprises a fuel tank, a liquid level sensor, a pressure sensor, a carbon tank and a controller. The liquid level sensor, the pressure sensor and the energy-saving electric control valve are all in electric signal connection with the controller. A first connecting port in the energy-saving electric control valve is connected with an exhaust port in the fuel tank, a second connecting port is connected with an air inlet in the carbon tank, a third connecting port is connected with an atmosphericpipeline, and a fourth connecting port is connected with an exhaust port in the carbon tank. According to the energy-saving electric control valve and the electric control fuel system, with the energy-saving electric control valve, communication between the fuel tank and the carbon tank is cut off, it is avoided that oil vapor enters the carbon tank and causes overlarge load of the carbon tank, and less environmental pollution is caused; and the opening degree of a channel can be controlled by controlling the moving distance of a driving source, and the volume is accurately controlled in theprocess of filling and supplementing fuel oil.

The invention discloses an energy-saving low-radiation glass vertical-type magnetron sputtering production device. The energy-saving low-radiation glass vertical-type magnetron sputtering production device comprises multiple film-coating cavity units connected in series. A process isolation cavity is arranged between each adjacent two of the multiple film-coating cavity units. An isolation valve is arranged between each one of the multiple film-coating cavity units and the process isolation cavity adjacent with the film-coated cavity unit. Each one of the multiple film-coating cavity units comprises a base, a target material frame, a backboard seat and a glass frame. The target material frame and the backboard seat are installed on the base and form a film-coating cavity. The target material frame is provided with a target material cathode. An opening/closing device is arranged between the target material frame and the base. The glass frame is arranged in the film-coating cavity, has a vertical structure and forms an angle of 0-10 degrees with a vertical plane. The opening/closing device is driven by hydraulic pressure or air pressure. The glass frame is provided with a glass conveyer. According to the energy-saving low-radiation glass vertical-type magnetron sputtering production device, in energy-saving low-radiation glass production, glass is arranged vertically so that impurities deposited on the surface of the glass are reduced, the damage produced by impurities on a film is reduced, film adhesion is improved, and arc discharge caused by deposition of impurities on the target material cathode is reduced.

The invention discloses an air-conditioner. The air-conditioner comprises a machine shell (1) and a metal fastening piece (2) mounted on the machine shell (1); the inner end of the metal fastening piece (2) is connected with a metal component (4) in the machine shell (1) in a penetrating mode; and the outer end of the metal fastening piece (2) is exposed out of the machine shell (1) and further sleeved with aheat insulation protective sleeve (3). According to the air-conditioner, the heat insulation protective sleeve is additionally arranged, and heat insulation and protection are conducted so as to interdict direct contact between the metal fastening piece and the metal machine shell. Under the refrigerating condition, the environment temperature in a machine cavity is lower than that of the outside, and connecting of the internal environment and the external environment through the metal fastening piece can be interdicted in the mode that the outer end of the metal fastening piece is covered with the heat insulation protective sleeve, so that the situation that the metal fastening piece forms a cold bridge in a lap joint mode to form congealed dewdrops, and thus the water dropping phenomenon occurs is prevented. Therefore, according to the air-conditioner, the water dropping phenomenon does not occur to the metal fastening piece on the machine shell, and the experience degree of a user is greatly increased.

The invention belongs to the technical field of gas springs, and particularly relates to a balanced gas spring. The balanced gas spring comprises a cylinder barrel, a front seal, a rear seal, a piston and a piston rod; the front seal and the rear seal are located at two ends of the cylinder barrel correspondingly, and the piston rod is sleeved with the front seal; the piston is located in the cylinder barrel and is in threaded connection with the piston rod, and the end, penetrating through the piston, of the piston rod is in threaded connection with a nut; an outer edge ring groove is concavely formed in the middle of the outer circumferential face of the piston; a sealing ring is arranged in the outer edge ring groove; and an end face ring groove is formed in the end face of the end, facing the front seal, of the piston. According to the invention, under the condition that the gas spring is not disassembled, a working spring can be rapidly adjusted, the adjusting efficiency is high, and the process is convenient and fast.

The invention discloses a balance control device of the spray boom of a high ground clearance boom sprayer and a control method of the balance control device. The balance control device comprises a balance control system, wherein the balance control system comprises components such as a controller, an electromagnetic damper and sensation equipment. When the controller judges that the spray boom moves downwards according to detection signals of the sensation equipment, the electromagnetic damper is controlled to generate damping force for obstructing the rotor of the spray boom to rotate, and according to movement states of the spray boom, the damping force of the electromagnetic damper is adjusted in a soft stopping mode, so that vibration of the spray boom tends to be stable; and when thecontroller judges that the spray boom moves upwards, power supply current of the electromagnetic damper is cut off, and then the electromagnetic damper does not generate the damping force till the speed that the spray boom moves upwards is turned into zero. By adopting the device and the control method of the device disclosed by the invention, the balance stability of the spray boom of the high ground clearance boom sprayer in operation can be effectively improved, and the device is precise in control, reasonable in structure planning, easy to manufacture, implement and maintain and applicable to popularization and application.

The invention provides a cold station structure and a central air conditioning system, relates to the technical field of refrigeration, and solves the technical problems that a water chilling unit ina central air conditioner cannot be started and cannot refrigerate due to excessively-low environment temperature in winter. The cold station structure comprises a water chilling unit and a cooling tower which are connected with each other; the cooling tower is connected with an air conditioner terminal, and when the cooling tower communicates with the air conditioner terminal, the cooling tower is used for providing circulating cooling water subjected to heat exchange with the external environment for the air conditioner terminal for refrigeration; the cooling tower and the air conditioner terminal can be blocked when the water chilling unit provides chilled water for the air conditioner terminal for refrigeration. According to the structure, the cooling tower is connected with the air conditioner terminal, and when the water chilling unit cannot be started to refrigerate the air conditioner terminal due to low environment temperature in winter, cooling water in the cooling tower after heat exchange with the external low-temperature environment can be directly supplied to the air conditioner terminal for refrigeration; according to the cold station structure, cold sources can be switched according to different environments, refrigeration can be achieved in summer and winter, the situation that the air conditioner terminal cannot be refrigerated when the water chilling unit cannot be started in winter is prevented, and the energy utilization rate is increased.

The invention relates to the field of home appliances, and discloses a wind control device and a refrigerator. The wind control device (30) comprises a shell (33) and a control part (32); the shell comprises a first air opening (31) and a second air opening (331); and the control part comprises a rotating shaft (32b) which is rotatably arranged in the shell, a radial-protruding retaining block (B)is arranged on the rotating shaft so as to block the second air opening through the retaining block in the rotation process of the rotating shaft, the communication of the first air opening and the blocked second air opening is blocked, and the air volume passing through the second air opening can be controlled by rotating the rotating shaft to the degree that partially block the second air opening to a different extent through the retaining block.

The invention discloses a grafting method of high-quality and high-yield blood-flesh peaches. The invention comprises the following steps of 1, selecting stocks; 2, performing pre-grafting stock processing; 3, performing grafting; 4, performing bud growing processing; 5, performing daily management. The method has the advantages that wild peach trees are adopted as stocks, the disease and pest resistance of the cultivated blood-flesh peach root system is high, the growth capability is good, and the fruit productive age is long; meanwhile, mixed medicament A processing is performed on the stocks and scions, after connection, the stocks and scions are coated with a material B, and the phenomena that oil is generated during grafting of peach trees and connection of the grafted portion is blocked are avoided; the grafting success rate is high.

The invention discloses a tower-shaped composite sleeve of an ultrahigh-voltage cable terminal. The tower-shaped composite sleeve comprises a sleeve main body and is characterized in that the sleeve main body employs a three-segment tower-shaped structure, wherein a lower segment is a first cylinder, an intermediate segment is a cone, an upper segment is a second cylinder, an upper-part fitting and a lower-part fitting are respectively arranged at an upper part and a lower part of the sleeve main body, an umbrella skirt is arranged on an outer surface of the sleeve main body, anti-icing umbrellas are arranged at an intersection part of the intermediate segment and the upper segment and an intersection part of the intermediate segment and the lower segment, and the diameters of the anti-icing umbrellas are larger than the diameter of an umbrella in adjacent umbrella skirt. The tower-shaped composite sleeve has the advantages that 1) the dosage of insulation oil is reduced, and the epoxysleeve material is saved; 2) the equipment stability is improved; 3) the production process difficulty is reduced; 4) rainwater continuity can be effectively prevented, and icing flashover is prevented; 5) the protection effects of self cleaning, dirt prevention, water resistance, oil resistance and the like can be achieved; 6) the appearance has aesthetic appreciation; and 7) the tower-shaped composite sleeve is applicable to voltage classes being 330-550KV very well.

The invention discloses a clean room rotating channel capable of isolating air from communication. The clean room rotating channel comprises a PLC control cabinet, a cylinder machine seat body and a manned rotating unit, wherein the cylinder machine seat body comprises a cylinder body unit and a negative pressure cavity, an air suction pipe is arranged at the top of the negative pressure cavity, the cylinder body unit comprises a cylinder body and an air inlet pipe, the air inlet pipe is integrally sealed and fixedly connected to the upper portions of the left and right cylinder walls of the periphery of the cylinder body, channel openings are formed in the front and rear cylinder walls of the cylinder body, the air inlet pipe communicates with an inner cavity of the cylinder body throughan air inlet air port, the negative pressure cavity communicates with the inner cavity of the cylinder body through an upper air suction port, an air return air port and a lower air suction port, a top rotating middle shaft and a bottom rotating middle shaft are arranged at the top and the bottom of the manned rotating unit respectively, the manned rotating unit is in shaft connection with the inner cavity of the cylinder body unit through the top rotating middle shaft and the bottom rotating middle shaft; and a driving motor is in circuit connection with the PLC control cabinet. The clean room rotating channel has the advantages that air can be isolated from communication, the channel function can be achieved, and the air communication also can be prevented.