34results about How to "Avoid readjustment" patented technology

The invention provides a method and an apparatus for updating a connection parameter of a Bluetooth device with low power consumption. The method comprises the following steps: when detecting that aremote control mode is switched locally, sending a prompt message indicating that a Bluetooth remote control device switches the remote control mode to a controlled device, for enabling the controlled device to generate a connection parameter updating request according to the prompt message and send the connection parameter updating request to the Bluetooth remote control device, wherein the connection parameter updating request carries an effective time point of the connection parameter, and the effective time point is prior to a default effective time point; monitoring whether the connection parameter updating request sent by the controlled device is received locally at each connection interval after the remote control mode is switched locally; when monitoring the connection parameter updating request, sending response used for agreeing to update the connection parameter to the controlled device; and when reaching the effective time point of the connection parameter, updating the connection parameter of the local and the controlled device. In summary, the method and the apparatus provided by the technical scheme of the invention can be used for improving the updating speed of the connection parameter by improving the response speed of the Bluetooth remote control device.

The invention belongs to the technical field of hardware tool manufacturing, and particularly relates to an adaptive adjustment machining platform for clamp body machining. The adaptive adjustment machining platform comprises a shell, transporting tracks are arranged on the inner walls of the pair of parallel edges of the shell and provided with machining stations, the ends of the transporting tracks are connected with falling devices, sliding blocks are slidably arranged on the inner walls of the other pair of parallel edges of the shell, the sliding blocks are connected with pushing rods through sliding block limiting devices, the pushing rods conduct reciprocating lifting movement along the sliding block limiting devices, clamp body limiting devices are arranged on the upper parts of the pushing rods, the sliding blocks are movably connected with positioning devices, the positioning devices conduct reciprocating lifting movement along with movement of the sliding blocks, the pushingrods are arranged on the lower parts of the transporting tracks, and the pushing rods are connected with reciprocating driving mechanisms. According to the adaptive adjustment machining platform, through mechanical linkage between the devices, falling, feeding and positioning are integrated, the structure is simple, the cost is low, the function is complete, and the adaptive adjustment machiningplatform is easily applied and promoted.

The invention discloses a fuel injection advance angle assembling tool of a diesel engine fuel injector. The fuel injection advance angle assembling tool of the diesel engine fuel injector comprises a base board on which an idle gear is fixed. The base board outside the idle gear is provided with a positioning shaft on which an oil pump gear connector is mounted. The positioning shaft is movably connected with the base board. The positioning shaft is provided with an adjusting handle. The base board at the periphery of the positioning shaft is provided with a reference hole. The base board at the periphery of the reference hole is provided with a plurality of angle positioning holes. The deflection angle of the positioning shaft is fixed through pins which are inserted between the angle positioning holes and the adjusting handle. According to the fuel injection advance angle assembling tool of the diesel engine fuel injector, a fuel injection pump advance angle can be preset according to a technological requirement for a diesel engine, and re-adjustment of the fuel injection pump advance angle in a thermal test is prevented. Not only is a problem of low production efficiency settled, but also consistency and reliability of a product are improved. Furthermore production cost is greatly reduced.

Disclosed is a real time self-adapting measuring method based on the network flow in a permanent storage space, comprising: setting a duration of the interval to be measured, a network flow storage space and a sample measurement parameter; establishing a threshold for defining the storage space size of the network flow as a reference of measurement loop end in the measuring process, thus, if the fluxion of the storage space network flow exceeds the threshold, the present measurement interval is end, subsequently, outputting all the flow record information estimation value; calculating the sample measurement parameter of the next measurement interval according to the period of the present measurement interval, the duration of the interval to be measured and the present sample measurement parameter. The invention can save consumption of the measuring resources in the self-adapting process and maintain the accuracy of the network flow information; intercomparsion and calculation can be achieved directly in different measurement intervals by the measuring results of different sample parameters.

The invention belongs to computer hardware, and provides an external sound card with a false contact prevention cover. The external sound card comprises a shell with a control panel, wherein a cover is arranged on the control panel, and a rotary knob is protected through covering, so that the parameter variation caused by false contact of the rotary knob is prevented, secondary adjustment is avoided, and the defect that an existing external sound card is free of a false contact prevention cover is overcome.

The invention relates to the technical field of metal machining, in particular to a machining table for metal machining. The machining table comprises a base and a fixing frame. A second fixing columnis vertically arranged on the top of the base, and a first fixing column is horizontally in sliding connection to the top of the base. A rotation mechanism is arranged in the fixing frame and comprises a first gear, a worm, a second gear, a first rotation motor and a third gear. A supporting table is arranged on the top of the fixing frame, and the top of the supporting table is rotationally connected with a fixing base. Displacement mechanisms are arranged at the two side positions of the top face of the base. The face, opposite to the fixing base, of the second fixing column is provided with a lifting mechanism. A rack and a third rotation motor are arranged on the top of the first fixing column. The face, deviating from the fixing frame, of the base is provided with a transmission mechanism. The provided machining table for metal machining has the advantages that operation is convenient, usage is flexible, and various parts of a workpiece can be conveniently machined.

The invention relates to a telescopic conveyor with automatic belt length adjustment. The telescopic conveyor includes a main frame, a telescopic frame is slidably accommodated inside the main frame,the lower part of the telescopic frame is connected to an adjustment assembly fixed on the surface of the main frame in a meshing mode, the telescopic frame telescopically slides inside the main frameand drives a winding wheel group in the adjustment assembly through a toothed plate to rotate to adjust the tightness of a conveyor belt automatically. A supporting arm is pushed to move outwards inan accommodating groove of a supporting frame by an air cylinder so as to enable the length of an entire conveyor to be extended, the supporting arm drives a first winding wheel and a second winding wheel to rotate through the toothed plate during the outward movement, a conveyor belt on the first winding wheel and the second winding wheel are released, so that when the conveyor is extended, the conveyor belt is further released, overall linkage and mutual cooperation are achieved, manual readjustment is avoided, fully automatic setting is achieved, the operation is convenient, and simplicityand practicality are achieved.

The present invention belongs to the field of image processing technology, and relates to a human face detection method with combination coefficient of weak classifier. Said method includes the following steps: first step: extracting characteristics of human face image, calling it human face image characteristic vector and forming sample set; second step; utilizing sample set to construct cascade detector; for every node of cascade detector adopting lifting method to select weak classifier based on characteristics and construct integrated classifier; for integrated classifier utilizing combination coefficient to further raise classification efficiency; and third step: finally, utilizing above-mentioned cascade detector to implement automatic human face detection.

The present invention is an intelligent control system and method for small and medium-sized hydropower stations. It is provided with a remote control layer, a station control layer, and at least one single unit control layer, wherein the single unit control layer is provided with an LCU layer and a sensor layer. The LCU layer is composed of at least two functional LCU controllers, each of which is connected to a sensor group at the input of the functional LCU controller. network, forming the LCU layer, the first communication end of the station control layer is connected to the EtherCAT real-time Ethernet, and the second communication end is connected to the remote control layer; the control method of the intelligent control system of the small and medium-sized hydropower station It is an intelligent control system for small and medium-sized hydropower stations that adopts a publish / subscribe mechanism to establish a unified information platform for the whole station to realize the sequential logic control and synchronous chain adjustment control functions of the intelligent hydropower station control system.

The invention discloses a workpiece clamp and a knife grinding machine. The workpiece clamp comprises a machine base, a collet, a regulation mechanism and a drive mechanism. The machine base is provided with a guide hole. Multiple installation holes are formed in the hole wall of the guide hole. The multiple installation holes are distributed in the circumferential direction of the guide hole. Thecollet is arranged in the guide hole and can reciprocate along the guide hole. Multiple axial telescopic seams are formed in the clamping end of the collet. The clamping end of the collet is segmented into multiple clamping petals through the multiple axial telescopic seams. A wedge-shaped protrusion is arranged on the outer side of each clamping petal. The regulation mechanism comprises multipleregulation parts which are connected with the installation holes and can be used in cooperation with the collet to regulate the roundness of the collet. The drive mechanism can drive the collet to reciprocate along the guide hole. The knife grinding machine comprises the workpiece clamp. The workpiece clamp is adjustable in precision and good in retainability, good precision is still kept under the repeated knife releasing and pulling actions, it is avoided that regulation is conducted again, the production efficiency is improved, and therefore the negative phenomenon that the precision retainability is poor is improved.

The invention discloses a fuel injection advance angle assembling tool of a diesel engine fuel injector. The fuel injection advance angle assembling tool of the diesel engine fuel injector comprises a base board on which an idle gear is fixed. The base board outside the idle gear is provided with a positioning shaft on which an oil pump gear connector is mounted. The positioning shaft is movably connected with the base board. The positioning shaft is provided with an adjusting handle. The base board at the periphery of the positioning shaft is provided with a reference hole. The base board at the periphery of the reference hole is provided with a plurality of angle positioning holes. The deflection angle of the positioning shaft is fixed through pins which are inserted between the angle positioning holes and the adjusting handle. According to the fuel injection advance angle assembling tool of the diesel engine fuel injector, a fuel injection pump advance angle can be preset according to a technological requirement for a diesel engine, and re-adjustment of the fuel injection pump advance angle in a thermal test is prevented. Not only is a problem of low production efficiency settled, but also consistency and reliability of a product are improved. Furthermore production cost is greatly reduced.

The invention relates to a multi-user television and a management method thereof, wherein the multi-user television management method comprises: displaying a user access interface; receiving user access information; loading the user setting corresponding to the user access information into the television. The method provides a multi-user access mechanism for the television, and user can refer to self user access information and download suitable display setting parameters to avoid readjustment in watch. Additionally, the invention can distribute different application rights for users according to the user access information to support the management on the television.

The invention relates to a production process for PSL-2 grade non-tempered N80 steel grade oil casing pipes, comprising the following processing steps: step (1) of heating pipe blanks in an annular furnace at 1200-1280 degrees centigrade for 3-3.5 h; step (2) of punching the heated pipe blanks with a puncher, and rolling to obtain coarse pipes with required specification, wherein temperature of coarse pipes is not less than 1150 degrees centigrade; step (3) of rolling coarse pipes obtained by punching on a retained mandrel pipe mill until required specification is obtained, wherein final rolling temperature for continuous rolling is not less than 1000 degrees centigrade; and putting rolled coarse pipes on an extracting mill to separate pierced pipes from core rods; step (4) of processing pierced pipes obtained by rolling and detaching with a sizing mill to obtain required outside diameter, wherein inlet temperature of the sizing mill is not less than 880 degrees centigrade, temperature of pierced pipes after sizing is not less than 820 degrees centigrade, and an equivalent dependent variable in a sizing process is not less than 0.4; step (5) of cooling sized pierced pipes in air at 820-800 degrees centigrade for 10-15 s, then atomizing and cooling at 650-800 degrees centigrade, and cooling to room temperature in the air at the last. The process provided by the invention meets demand of API standard PSL-2 grade on impact properties, and prevents pipes bending, deforming and cracking in a re-tempering process.

The invention relates to a drawing method for a power distribution wiring diagram of an energy utilization information collection system. The method comprises the steps of 1, analyzing an XML document to obtain original data of each graphic primitive, recording graphic data of zooming or rotation operation, performing comparative calculation on the original data of the graphic primitives and the graphic data to obtain a zooming coefficient of the graphic primitives, and performing geometric calculation to obtain drawing center point coordinates of the graphic primitives; 2, based on a canvas API, if a graphic primitive rotation angle is 0, calculating absolute coordinates of the graphic primitives; if the graphic primitive rotation angle is not 0, calculating relative coordinates of the graphic primitives; storing new graphic primitive input parameters obtained by calculation in an object array; and 3, traversing the object array, and drawing graphic primitive object elements one by one. According to the method, the defects of high error probability of graph modification, low page loading speed and the like of an existing drawing method are overcome; the page loading speed is increased; and convenience is brought for system maintenance personnel to draw and modify the graph.

The invention provides a device for automatically and synchronously assembling magnetic shoes and a U-shaped spring of a direct-current motor. The device comprises a positioning device, a U-shaped spring closing device, a magnetic shoe vacuum suction device and a motor shell placing device, wherein the positioning device is provided with a vertical straight line main guide rail and a longitudinal supporting straight bearing; with the adoption of the U-shaped spring closing device, the U-shaped spring is forced to be closed through a guide groove of a U-shaped spring closing guide block, so that the closing state of the U-shaped spring is kept by a U-shaped spring closing rod driven by a closing air cylinder before mounting the U-shaped spring in the motor shell; the magnetic shoe vacuum suction device fixes magnetic shoes with an accurate standard at accurate positions; and the motor shell placing device is used for positioning and supporting the motor shell. With the adoption of the device provided by the invention, the U-shaped spring and the magnetic shoes can be automatically and synchronously assembled; furthermore, the U-shaped spring cannot scrap the lateral faces of the magnetic shoes in an assembling process; and a position distance of mounting the U-shaped spring between the two magnetic shoes is precisely controlled by using serve drive accurate positioning properties. Therefore, the operation labor intensity is effectively reduced, and the assembly operation efficiency and the assembly quality of the magnetic shoes and the U-shaped spring are improved.

A method for real-time planning of a maneuvering target of a spacecraft in a moving coordinate system. First, the initial calculation of conventional attitude maneuvering planning is performed to obtain the initial quaternion and maneuvering planning parameters of the target moving coordinate system relative to the satellite orbit system, and then in each control cycle according to Maneuver planning parameter information, carry out real-time planning pre-calculation of conventional attitude maneuver planning, and obtain pre-calculation results. Finally, in each control cycle during the maneuver process, according to the real-time direction cosine matrix of the target moving coordinate system relative to the orbit system, the target moving coordinate Calculate the angular velocity of the real-time planning relative to the inertial system attitude quaternion and the real-time planning relative to the angular velocity of the inertial system, and complete the real-time planning of the spacecraft for the maneuvering target of the moving coordinate system.

The disclosure provides a method and device for updating connection parameters of a Bluetooth low-power device. The method includes: when it is detected that the local remote control mode is switched, sending a prompt message to the controlled device to switch the remote control mode of the Bluetooth remote control device, so that the controlled device The device generates a connection parameter update request according to the prompt message, and sends it to the Bluetooth remote control device. The connection parameter update request carries the effective time point of the connection parameter, which is earlier than the default effective time point; Each connection interval monitors whether the connection parameter update request sent by the controlled device is received locally; when the connection parameter update request is detected, a response for agreeing to update the connection parameters is sent to the controlled device; when the effective time of the connection parameter When arriving, update the connection parameters between the local and the controlled device. To sum up, the technical solution of the present disclosure can improve the update speed of the connection parameters by improving the response speed of the Bluetooth remote control device.