31results about How to "Easy and intuitive adjustment" patented technology

The invention discloses a robust broadband beamformer design method based on a probability constraint, and belongs to the technical field of array signal processing. The method comprises the followingsteps of firstly, converting a probability problem into a convex optimization problem by inequation deformation; secondly, calculating a robust parameter when it is assumed that the known microphonemismatch error prior information is the uncertain maximum boundary of respective mismatch error expectations and variances; then, determining a probability selection range according to the feature ofthe convex function varying with parameters; finally, obtaining a robust far-field broadband beamformer weighted value with good pass-band frequency invariant performance by appropriate probability parameter selection. Under the same error condition, the method not only has good robustness, but also has better pass-band consistency gain, thereby ensuring that a signal does not produce significantdistortion.

The invention provides a microscope with adjustable illuminating color temperature and brightness. The microscope is characterized in that a condenser component and an illuminating and dimming device are arranged on a mirror bracket component of the microscope, wherein the illuminating and dimming device comprises a light-emitting diode (LED) module, an illumination adjusting panel, an illumination control circuit board, a power conversion component and a power socket; an illumination control circuit is arranged on the illumination control circuit board; and the condenser component is arranged above the LED module. When the microscope is used, light emitted from the LED module is mixed and provides illumination for an observed specimen through the condenser; and by operating the illumination adjusting panel, the illumination control circuit responds to operation of the illumination adjusting panel, so that current flowing through the LED is controlled, and the brightness or color temperature of the illuminating mixed light is correspondingly adjusted. The color temperature or brightness of the mixed light irradiating the observed specimen can be conveniently adjusted, so that the microscope can adapt to different service environments, different service requirements are met, and a good observation effect is achieved.

The invention relates to an automatic solder robot comprising a soldering bit, an X-axis module, a Y-axis module, a Z-axis module, a carrying board, a wire feeding mechanism and an electric control box as well as a soldering bit motion mechanism and an accurate solder wire positioning mechanism. The soldering bit motion mechanism comprises a moving device which is connected with the soldering bitand comprises a connecting block, an air cylinder, a sliding plate and a linear sliding rail; the connecting block is used for connecting the upper end of the soldering bit with the cylinder body of the air cylinder together and connected with the sliding plate which is glidingly connected with the linear sliding rail; a solder wire nozzle of the accurate solder wire positioning mechanism is connected with the connecting block through a connecting rod, the connecting block is connected with a connecting shaft which is fixedly connected with a deflection block and is in rotating connection with an elevation block, a clamping block is connected with the elevation block and fixed at the upper end of the soldering bit, a horizontal adjusting screw is in rotating connection with the deflectionblock, and the front end of the horizontal adjusting screw is glidingly connected with the elevation block. The invention can accurately solder melted tin solder in a needed position and improve the efficiency, the product quality consistency and stability.

The interference instrument includes light source with one first driving power source and temperature controller, collimation light source and excitation light source with different wavelegnth. The full light beam transmitting path is in optical fiber, wave synthesizing element and fiber coupler. Two photoelectronic elements respond only to the light beam emitted by the first mentioned light source and do not respond to the light beam of the last two light sources. There is a phase controller connected between the first driving power source and the A / D converter to control the initial phase. Compared with available technology, the present invention has the advantages of compact structure, small volume, strong anti-jamming capacity, capability of eliminating error caused by drift wavelength, and high measurement precision.

The invention discloses a damping desk. The damping desk is characterized by comprising a desk frame and a desk body, wherein the desk frame comprises a base and supporting legs at two sides of the base; vertical cylindrical sliding bases are fixed at the top ends of the supporting legs; the desk body has a smooth desk top and sliding blocks fixedly connected to the two sides of the desk top; the sliding blocks are in sliding fit with the sliding bases; screw rods and fastening mechanisms are respectively arranged between the sliding blocks and the sliding bases along a sliding direction; the fastening mechanisms are used for fastening the sliding blocks and the sliding bases; a drawer-shaped structure is under the desk body; each of the supporting legs comprises two oppositely bent hard pipes; middle sections of the hard pipes are fixedly connected in parallel, thereby forming a fixedly connected section; two pipes under the fixedly connected section go downwards and are forked to be fixedly connected with the base to form an upright stable triangular structure; two pipes above the fixedly connected section go upwards and are forked to be fixedly connected with a transverse fixed block to form an inverted stable triangular structure; and the sliding bases are fixedly connected with the fixed blocks. The upper part of the desk can deform, thereby absorbing the impact of a dropping article, and meanwhile, an excellent nether shielding form is kept. The damping desk has an excellent damping capability and can greatly maintain the safety of hiding people.

The invention discloses a design method of a robust broadband beamformer based on probability constraints, and belongs to the technical field of array signal processing. The method includes the following steps: firstly, the method transforms the probability problem into a convex optimization problem through inequality deformation; secondly, assuming that the known prior information of the microphone mismatch error is the uncertainty of each mismatch error expectation and variance is the largest The robust parameters are calculated under the boundary conditions; then, the probability selection range is determined according to the characteristics of the function of the convex function changing with the parameters; finally, a robust far-field broadband beamformer with good passband frequency invariance performance is obtained through appropriate probability parameter selection weight. Under the same error condition, the present invention not only has good robustness, but also has better passband consistency gain, which ensures that the signal will not be significantly distorted.

The invention provides a coaxiality adjusting structure of a CCD (Charge Coupled Device) camera, comprising a cylindrical dark box, wherein upper and lower ends of a box body are opening ends; upper and lower box covers are respectively configured at the two ends of the box body; a hole is formed in the center of the bottom of the lower box cover; a reaction plate is located rightly below the hole; a plate-shaped CCD fixing frame is distributed below the upper box cover and a hole is formed in the center of the upper box cover; a CCD piece is embedded in the hole; the lower end of the CCD piece is arranged towards the center of the reaction plate; a step vertically and downwards protrudes from a cover plate of the upper box cover; vertical unthreaded holes are formed in the step; a threaded hole is formed in a corresponding position of an annular plate edge of the CCD fixing frame; adjusting bolts are downwards inserted into each pair of the unthreaded holes and the threaded hole from the upper side of the upper box cover; and the CCD fixing frame is fixedly arranged on the upper cover box. According to the structure disclosed by the invention, the upper box cover does not need to be opened and the coaxiality of the CCD piece and the reaction plate can be finely adjusted, so that the operation is convenient and the time is saved; and the adjustment can be directly and conveniently conducted and the best image imaging effect can be obtained.

The invention discloses a method and a device for slidingly controlling the playback speed of text speech. The method includes: obtaining the sliding position and the sliding speed of the sliding control terminal; matching the text content and text voice corresponding to the sliding position according to the sliding position of the sliding control terminal; generating the voice playback speed corresponding to the sliding speed; Voice playback speed to play. By detecting the sliding speed of the finger or the electronic pen, the playback speed of the text voice corresponding to the text pointed by the finger or the electronic pen is controlled according to the detected sliding speed, and the user can conveniently and intuitively adjust the speed according to the text, and the adjusted playback The speed perception is clear, and the playback speed can be adjusted conveniently and quickly according to one's own reading ability and text difficulty.

The invention provides an adjustable rapid searching method for local optimal route, which belongs to the field of rail traffic train signal control systems. The adjustable rapid searching method forlocal optimal route reduces the input amount of program configured data, the work load of engineering test and verification. Full-station route is searched and stored only at the time of system initialization, and route can be selected through table look-up, and time consumed by the method is far less than the scheme adopting dynamic searching in terms of route selection. Through adjusting the searching bias value of the station field branched knot (the knot where the route branch starts), the searching result of a certain route or a certain type of route can be affected, so that the aim of being consistent to the interlocking table input by design can be achieved. The method is convenient and direct in adjusting, and the affecting range is controllable.

The invention discloses a hand-held time relay operating time tester and a method, and relates to the technical field of relay testing. The instrument includes a handheld tester host, which is provided with a liquid crystal display, a contact detection terminal, a voltage output terminal, a power switch, a test switch, and a control panel inside the host; the control panel is provided with a single-chip microcomputer, A boost circuit, a voltage detection module and a contact detection module; the single-chip microcomputer is respectively connected to the boost circuit, the voltage detection module, and the contact detection module, and the boost circuit is also connected to the voltage detection module; The boost circuit is connected to the voltage output terminal, the contact detection module is connected to the contact detection terminal, and the single-chip microcomputer is connected to the test switch and the liquid crystal display. The tester of the invention is easy to operate, fast in test speed, accurate in test results, intuitive and convenient to adjust the time relay, and saves time and manpower.

The invention discloses an adjustable bevel cutting control mechanism for water cutting equipment. The control mechanism comprises a driving shaft (19) which is arranged on a box body (5) through a driving bearing (22), and is characterized in that: the lower end of the driving shaft (19) is connected with a cambered surface seat (17); the cambered surface seat (17) is sleeved in a cambered surface sliding sleeve (12); an adjusting gear (7) is meshed with the cambered surface sliding sleeve (12); a lower end of a rotating shaft (14) extends out of the cambered surface sliding sleeve (12) and is connected with a high-pressure water switching valve (29); the high-pressure water switching valve (29) is connected with a cutting head (30) and a high-pressure water source respectively; a heightdetection mechanism (28) is arranged on one side of the box body (5) and an inductive switch (41) is arranged on the other side of box body (5); and an induction rod (39) is arranged on the cambered surface seat (17) corresponding to the inductive switch (41). The control mechanism has a simple structure, is convenient to manufacture and install, can be arranged on common water cutting equipment,realizes bevel cutting and has effects of small investment and fast effect.

The invention discloses a machine feeding control method and an implementing device thereof and belongs to the technical field of cutting machines. The conventional typical machine feeding adopts a programmable logic controller (PLC) direct-drive control method which has low anti-interference capability and a low feeding speed and is limited in precision and complicated in operation. In the invention, a feedback indirect-drive control method is adopted; a PLC is connected with a pulse generator through a wire to control the start and stop of the pulse generator; the pulse generator is connected with a driver of a stepper motor through a wire to send a pulse signal to the driver of the stepper motor; the driver of the stepper motor is connected with the stepper motor to drive the stepper motor to rotate; a rotating shaft of the stepper motor is in threaded connection with a screw pair; a feeding slider is arranged on a guide rail; a screw pair slider is fixedly connected with the feeding slider; and two travel switches are arranged on the two ends of the guide rail to sense the position of the feeding slider and connected with the PLC through wires to feed signals back to the PLC. In the invention, feeding speed and precision are high and operation is convenient.

The invention relates to a portable video otoscope CMOS camera focal distance precise adjustment mechanism. The mechanism comprises a shell in the shape of a round tube, arc-shaped windows are formed in the middle of the shell, and rectangular notches are formed in interlayers of the shell. A rotation core sleeve is arranged in the shell, the front position and the rear position of the rotation core sleeve are fixed, threads are arranged on the inner side of the front end of the sleeve, the portion, located at the front end of a rotation core tube inside the shell, of the shell is provided with threads, the rotation core tube is rotated to be sleeved with the rotation core sleeve, and the front end of the rotation core tube is in an open shape with arc-shaped left and right faces and parallel upper and lower faces. A fixed CMOS component is arranged in the rotation core tube and moves on an optical axis frontwards and backwards, the purpose of mechanically adjusting the focal distance by a user is achieved, operation is convenient and time is saved. The thread pitch and the angle rotation range between the rotation core tube and the threads in the rotation core tube are set, so that the displacement distance of a CMOS photoreceptive device is precisely controlled, and the best graph imaging effect is guaranteed.

The invention discloses a sine swing mechanism which comprises a base. The base is provided with a horizontal bearing platform, a first supporting frame is fixed at one end of the bearing platform, the first supporting frame comprises a vertically arranged mounting board which is provided with a motor and a motor reducing gear, an output shaft of the motor reducing gear penetrates through the mounting board and is connected with an eccentric mechanism, and the eccentric mechanism comprises a sliding nut which is connected with a connecting rod mechanism and drives the connecting rod mechanism to move; supporting boards are symmetrically arranged on two sides of the other end of the bearing platform, a working platform is arranged between the two supporting boards, and a sling rod is arranged below the working platform; one end of a connecting rod far away from a rectangular frame is connected with the sliding rod and drives the sliding rod and the working platform to rotate; and a rotating shaft on one side of the working platform penetrates through the supporting boards, and an encoder is mounted at one end of the rotating shaft far away from the working platform. The sine swing mechanism has the advantages of being simple in structure, stable and reliable and high in output accuracy.

The invention relates to a lighting control switch. The lighting control switch comprises a control unit used to control a lighting load, an illuminance setting unit of a manual operation component used to change operation amount in a preset range responding to manual operation of users, and a lower limit illuminance setting unit used to determine lower limit illuminance of the lighting load responding to manual input of users. The control unit is used to choose the illuminance according to operation amount and provide electricity corresponding to chosen illuminance for the lighting load. The control unit is used to choose the illuminance which is defined to be equal or higher than the lower limit illuminance as a regulated illuminance under the condition that the operation amount is lowest.