90results about How to "Guaranteed change" patented technology

The invention discloses a mobile terminal as well as a system and method for realizing access point name setting, wherein, the system is implemented as the following steps: the mobile terminal sends a request for querying access point names (APN) to an APN server when APN information needs to be set; and after the APN server receives the request of the mobile terminal for querying the APN, the APN information corresponding to the mobile terminal is carried in a response for querying the APN and returned to the mobile terminal. In the invention, the APN can be automatically set by the mobile terminal conveniently, and the great convenience is brought to the user of the mobile terminal; and when an operator needs to change the APN information of the mobile terminal, the served mobile terminal can change the APN information only by interacting the APN server with the mobile terminal, thereby bringing great convenience for the operators for developing and changing services.

The invention discloses an adjustable high-flexibility low-pressure and stable-pressure pressure reducing valve, which comprises a valve body and a valve core component, wherein the valve body is provided with an inlet and an outlet; the valve core component is arranged in the valve body; a medium passage for communicating the inlet with the outlet is formed in the valve body; a throttling port is formed in the medium passage; the valve core component corresponds to the throttling port and is used for changing the medium pressure in front of and behind the throttling port; the valve core component comprises a valve core rack, a valve rod and a valve flap; the valve core rack is fixedly arranged in the valve body; the valve rod is arranged in the valve core rack; the valve flap is arranged at the lower end of the valve rod to change the flow rate of the medium passage; a sealing device is arranged between the valve rod and the valve core rack to isolate the upper part of the valve core rack from the lower part of the valve core rack; a pressure chamber in front of the valve is formed between the lower part of the valve core rack and the sealing device; the upper end of the valve core rack has a thin film structure, and a pressure chamber after the valve is formed between the upper end of the valve core rack and the upper part of the valve core rack; and a pressure adjusting structure is also arranged above the thin film structure. The valve has a simple and rational structure, is convenient to manufacture and mount, has high flexibility in pressure adjustment and has certain pressure stability, and the pressure adjustment range is adjustable.

The invention relates to a portable self-adjustment wheel type probe bracket for a rail flaw detecting car, which belongs to the technical field of rail flaw detecting cars. The invention aims to provide a portable self-adjustment wheel type probe bracket for a rail flaw detecting car, which can enable the probe to be kept on the central line of the rail all the time and detect the rail state accurately. The portable self-adjustment wheel type probe bracket comprises front rail traveling wheels, rear rail traveling wheels, wheel axles, a chassis and a probe bracket, wherein the wheel axles are used for respectively connecting the front rail traveling wheels and the rear rail traveling wheels; the chassis is connected with the front and rear wheel axles; the probe bracket is connected between the front and rear wheel axles on the chassis, and provided with front and rear wheel axle connecting plates, a cantilever, an adjusting plate and a fixed plate; one front end and one side of the cantilever are respectively fixedly connected with the front and rear wheel axle connecting plates; the other ends of the front and rear wheel axle connecting plates are respectively connected with axial sleeves on the front and rear rail traveling wheels; both ends of the rear side of the cantilever are respectively fixedly connected with the adjusting plate and the fixed plate; the probe is installed between the adjusting plate and the fixed plate; and the front and rear wheel axles on the flange sides of the front and rear rail traveling wheels are respectively sheathed with a spring.

The invention relates to a method and a device for the chain velvet making of a multi-crystalline solar cell. The invention adopts an overflow mode from four sides of a groove body to enable liquid to quickly overflow after reaction, and adopts a top spray mode that medical liquid is directly replenished to the periphery of silicon chips from the upper part so that the medical liquid can sufficiently contacts with the silicon chips, the temperature of the medical liquid is more beneficial to control and can be kept uniformly and velvet making effect can be improved. The invention adopts a liquid feeding mode from the groove bottom in the groove body, an liquid inlet faces downward, a liquid feeding pipeline is processed to control regulated flow, the upper part of an internal groove is provided with a weir crest, liquid entering from the liquid feeding pipeline upward overflows to the weir crest and flows into an external groove, the bottom of the external groove is provided with a liquid return opening which is connected with a medical liquid circulation supply groove through the pipeline, and the medical liquid flows back to the medical liquid circulation supply groove by gravity. The invention has the advantages of more easily controlling the temperature, effectively improving velvet making effect and product quality and reducing reflectivity, the temperature control accuracy can reach within + / -1 DEG C, and the reflectivity after velvet making can reach below 20 percent.

The invention discloses a control method of bored concrete pile impact holing and belongs to the technical field of bored concrete pile machines. A bored concrete pile comprises a percussion bit and a motor. The method includes the steps of firstly, selecting one point on the percussion bit, and recording the initial coordinates of the point on an X axis and a Z axis; secondly, detecting the current coordinates of the point on the X axis and the Z axis; thirdly, comparing the current coordinates with the initial coordinates to obtain varied coordinates, and comparing the varied coordinates with preset coordinate thresholds; fourthly, relating the current coordinates when the varied coordinates are larger than the preset coordinate thresholds to allow the current coordinates to be equal to the initial coordinates. The control method has the advantages that the impact positions of the percussion bit are detected in real time, the deviation coordinates of the percussion bit are regulated, and holes can be formed precisely.

A robot includes: a sound collecting unit collecting and converting a musical sound into a musical acoustic signal; a voice signal generating unit generating a self-vocalized voice signal; a sound outputting unit converting the self-vocalized voice signal into a sound and outputting the sound; a self-vocalized voice regulating unit receiving the musical acoustic signal and the self-vocalized voice signal; a filtering unit performing a filtering process; a beat interval reliability calculating unit performing a time-frequency pattern matching process and calculating a beat interval reliability; a beat interval estimating unit estimating a beat interval; a beat time reliability calculating unit calculating a beat time reliability; a beat time estimating unit estimating a beat time on the basis of the calculated beat time reliability; a beat time predicting unit predicting a beat time before the current time; and a synchronization unit synchronizing the self-vocalized voice signal.

The invention discloses a combined water-cooling high-temperature wedge type single-disc gate valve. The combined water-cooling high-temperature wedge type single-disc gate valve comprises a valve body, a gate plate, a valve rod and a valve cover, wherein the gate plate is arranged in a chute in the middle part of the valve body; the upper end of the gate plate is connected with the valve rod; the upper half part of the valve rod is matched with sealing fillings in a sealing box arranged at the upper part of the valve cover, stretches out from a filling gland arranged at the upper part of the sealing box and then is connected with an actuator through the matching of a T-shaped nut on a support arranged at the upper end of the valve cover; the actuator drives the gate plate to do up-and-down motion so as to realize turning on and off of a valve; the valve cover on the valve body is fixed through a first fastener; a combined annular water-cooling heat-dissipation water tank is arranged on the outer part of the valve cover; circulating water is arranged in the water tank. According to the structure designed by the invention, the neck part of the valve cover is provided with a heat dissipation device, the temperature in the position of a packing box is obviously reduced, the using performance of fillings is directly enhanced, the service life of the fillings is prolonged, the sealing stability of the fillings is increased, and the possibility of causing sealing leakage is obviously reduced.

The present invention provides a switching regulator which does not require a large time constant capacitor as a soft-start circuit, can reduce variation in soft-start time, shortens the time until power supply voltage stabilization control starts, and is suitable for IC. In the present invention, the output voltage of the soft start circuit is used as a step voltage signal that rises or falls at a predetermined rate, and the cycle of the step voltage change is set to a predetermined cycle when the power is turned on, and The output of the PWM pulse is monitored by the detection circuit, and the output signal of the soft start circuit is output according to the timing of changing from "H" to "L" or from "L" to "H" after the initial stage of the power-on. The change period of the step voltage is set to be greater than the prescribed period.

The invention discloses an engineering machinery bucket tooth induction heating structure repairing device and method. The engineering machinery bucket tooth induction heating structure repairing device comprises a folding coil, bucket teeth, supercharging balls, a water spraying cooling bin and the like, wherein a structure repairing layer is formed on the surface of the sharp portion of bucket teeth through induction heating of the folding coil; the upper end face and the lower end face of the folding coil are fixedly connected with positive and negative connection boards capable of making currents; cooling water flows in the water spraying cooling bin; grooves formed in the two end faces of the water spraying cooling bin are correspondingly provided with rotary shafts; each rotary shaftis provided with the two supercharging balls; each supercharging ball corresponds to a protrusive hemisphere ejector; the shaft shoulder position of each rotary shaft is fixedly provided with a rotary sliding bearing; each sliding bearing is installed in the grooves in the horizontal fracture surfaces of two sides of the corresponding supercharging ball and is in rolling connection with the corresponding rotary shaft fixedly; the cooling water inside the water spraying cooling bin flows in the pressure water flow direction; and cooling bin water ports are formed in the upper end face and thelower end face of the water spraying cooling bin. The engineering machinery bucket tooth induction heating structure repairing device and method not only ensure normal changes of the structure of therepairing layer, but also save energy resources.

A wiper control method and a wiper control device which can stabilize wiping rhythm of a wiper while ensuring required wiping and smoothly respond to change of a rainfall situation are provided. An adhesion cycle of a raindrop adhering on a detection surface is detected, a current adhesion cycle to be the basis when determining an intermittence time of a wiper is determined based on the detected raindrop adhesion cycle, the wiper intermittence time is determined based on the current adhesion cycle, a raindrop adhesion cycle shorter than the current adhesion cycle is detected, and when the raindrop adhesion cycle shorter than the current adhesion cycle is detected a predetermined number of times, the current adhesion cycle is changed to a shorter adhesion cycle and the wiper intermittence time is determined based on the changed current adhesion cycle.

The invention relates to a piezoelectric and electromagnetic hybrid variable-frequency micro-power generation assembly and a method for the same. The piezoelectric and electromagnetic hybrid variable-frequency micro-power generation assembly and the method are mainly used for collecting energy of a vibration environment. The piezoelectric and electromagnetic hybrid variable-frequency micro-power generation assembly comprises piezoelectric vibrators, a permanent magnet, coils, support plates, a fixed slider, a side beam and a movable slider. The piezoelectric vibrators vibrate so that piezoelectric energy can be collected; and electromagnetic energy is collected by means of changing the magnetic flux of each coil. The sliders move on the side beam, so that the span of a system is changed, the purpose of adjusting the resonant frequency of the assembly in a wide-range and high-precision manner is achieved, and the micro-power generation assembly is applicable to different working environments within a wide frequency range. Besides, the piezoelectric and electromagnetic hybrid variable-frequency micro-power generation assembly can be combined with a sensor applied to movement sensing, and has self-powered monitoring ability.