35results about How to "Consistent working status" patented technology

The invention provides a device for seamless switching of a host and a standby of a communication management machine. The device comprises the host and the standby of the communication management machine. The communication management machine comprises a plurality of physical communication interfaces, a communication media equipment management unit, a message transceiving cache region unit, a downlink communication media protocol processing unit, a real-time database unit and an uplink communication media protocol processing unit. The invention further provides a method for seamless switching of the host and the standby of the communication management machine. By the seamless switching of the host and the standby of the communication management machine, the standby of the communication management machine is under working status of the analog host so as to keep the working status of the host and the standby in the same pace. In addition, the host only sends the information received on the existing uplink or downlink communication media link to the standby, so the data volume is small, realtime transmission can be realized, the purpose of seamless switching of the host and the standby of the communication management machine is achieved, and the invention has the great significance for communication reliability and continuity of the important monitoring occasion system.

The invention discloses a system and a method for achieving wireless power transmission through ferromagnetic resonance. The system for achieving the wireless power transmission through the ferromagnetic resonance comprises a transmitting terminal power frequency alternating current power supply, a transmitting terminal ferromagnetic resonator primary side coil, a transmitting terminal resonance capacitor, a receiving terminal ferromagnetic resonator vice side coil, a receiving terminal resonance capacitor and a receiving terminal load and the transmitting terminal ferromagnetic resonator primary side coil is connected with the receiving terminal ferromagnetic resonator vice side coil in a coupling mode. The method for achieving the wireless power transmission through the ferromagnetic resonance includes that a transmitting terminal and a receiving terminal utilize a non-linear relationship between the ferromagnetic material magnetic field intensity and the magnetic flux density to generate the ferromagnetic resonance or chaotic oscillation, magnetic coupling between the transmitting terminal ferromagnetic resonator primary side coil and the receiving terminal ferromagnetic resonator vice side coil is utilized to achieve resonance synchronization, and accordingly the resonance can be achieved in a whole frequency domain and the wireless power transmission is achieved. According to the system and the method for achieving the wireless power transmission through the ferromagnetic resonance, the interference to communication equipment is discarded in the principle due to consistency of self-oscillation resonance or the chaotic oscillation to achieve an efficient, high power and remote wireless power transmission purpose.

The invention relates to the field of tire molding, in particular to a tire molding capsule device and a preparation method thereof. The tire molding capsule device comprises a capsule body and a fixed base; the capsule body is arranged on the fixed base, and includes an outer capsule body, a first reverse capsule body and a second reverse capsule body integrally molded through vulcanization; the first reverse capsule body and the second reverse capsule body are respectively connected with the two ends of the outer capsule body, and are reversely folded; when the capsule body is molded through vulcanization, molds are bonded on the outer surfaces of the outer capsule body, the first reverse capsule body and the second reverse capsule body; the inner surfaces of the outer capsule body, the first reverse capsule body and the second reverse capsule body are inflated by 2-10 bar; the vulcanization time is 30-120 min; and the temperature is 120-180 DEG C. The surface levelness of the capsule body can be controlled and guaranteed by dint of the smoothness of a mold cover. The thickness uniformity of the capsule body is mainly influenced by the thickness fluctuation of a semi-finished film under the condition of stable mold cavity size and inflation inner pressure.

The invention relates to an MMC control method under unbalanced power grid voltage based on a Lyapunov function. The method comprises the following steps: (1) an MMC mathematical model is built; (2) according to the MMC mathematical model, the steady-state value of an MMC switching function is acquired; (3) based on the Lyapunov function, the fluctuation quantity of the MMC switching function is determined; and (4) according to the steady-state value of the MMC switching function and the fluctuation quantity of the MMC switching function, the control value of the MMC switching function is determined, and according to the control value of the switching function, the MMC is controlled to work. Compared with the prior art, the method has the advantages that the response speed is quick, the robustness is strong, the system has a simple structure, the physical meaning is clear, the cost is low, realization is easy and the like.

The invention discloses a thrust bearing durability test device, and belongs to the technical field of bearing test devices. The device comprises a supporting frame, a sliding column assembly, a pressure applying mechanism, a rotating shaft and a driving mechanism. The sliding column assembly comprises an upper suspension structure connected to the pressure applying mechanism, a sliding column connected to the rotating shaft and a spring arranged on the sliding column in a sleeving mode. A spring tray is arranged on the sliding column; one end of the spring is propped against the upper suspension structure, and the other end of the spring abuts against the spring tray; the thrust bearing is connected between the upper suspension structure and the sliding column; the thrust bearing, the sliding column and the rotating shaft are coaxial; the rotating shaft can be rotatably arranged on the supporting frame; the pressure applying mechanism is configured to apply axial pressure to the thrust bearing in the axial direction of the thrust bearing; and the driving mechanism is configured to drive the rotating shaft to drive the thrust bearing to rotate around the axis of the rotating shaft.Compared with the prior art, the device can make the test state of the thrust bearing to keep consistent with the actual working state, so that the test accuracy of the thrust bearing is improved.

The invention belongs to the technical field of mineral processing, and relates to a uniform feeding device for an oblique shallow sedimentation thickener with a half-type slag separator, which includes two or more feeding units, and the pulp of the upper feeding unit passes through two One or more feeding points enter the next-level feeding unit, and the first-level feeding unit connected to the settlement module of the inclined shallow layer thickener sets several feeding points to guide the ore slurry into the inclined shallow layer thickening The designated ore feeding area of ​​the settlement module of the machine, the first-level feeding unit connected to the settlement module of the inclined shallow settlement thickener sets the feeding point according to the number of settlement modules; the first-level feeding of the uniform feeding device The material unit is equipped with a sieve-type slag separator, which is composed of two half-type slag separators. The sieve-type slag separator receives the pulp and enters the uniform feeding device, which is used for pulp energy dissipation and Retain coarse slag or sundries in the pulp. The invention solves the problem of uniform material distribution of the thickener through multi-point feeding.

The invention relates to the field of tire building, in particular to a vulcanizing die and a vulcanizing method for a bladder body of a tire building bladder. The vulcanizing die for the bladder body of the tire building bladder is characterized by comprising a first bladder tube, a third bladder tube, an external bladder tube, a bottom cover and an upper cover; an outer ring of the first bladder tube is a first surface; a rotating shaft is arranged in the middle of the first bladder tube in a connecting way; an outer ring of the third bladder tube is a second surface; the bottom cover is fixedly connected with the third bladder tube; a third surface is arranged on an outer ring of the bottom cover; the external bladder tube is arranged on the outer ring; an inner ring of the external bladder tube is a fourth surface; the first surface, the second surface, the third surface and the fourth surface form a die cavity of the bladder body; the external bladder tube and the bottom cover are matched to close the left side end of the die cavity; the right side end of the die cavity is closed by the upper cover; and an inflating channel is radially arranged on the third bladder tube and is connected to the die cavity. By using the bladder body of the vulcanizing die disclosed by the invention, the density of sizing materials is improved, and the bonding strength of the sizing materials and anti-sticking fabric is greatly improved.

The invention belongs to the technical field of piston ring profile design, and specifically relates to a dynamic test device for radial elastic force of piston ring circumference, which includes a fixed component consisting of a piston and a cylinder, and a force applying component composed of a first spring and a second spring. The components are divided into a static measurement component for the circumferential radial elastic force of the piston ring and a dynamic measurement component for the circumferential radial elastic force of the piston ring. The invention is easy to process and manufacture, the principle is simple, and the cost of each component is low; during detection, the piston ring is installed in the ring groove to ensure the stability of the piston ring during detection; the principle of leverage is used in the measurement process to measure the The pressure value in the piston ring is amplified, which reduces the measurement error caused by the accuracy of the sensor itself. The spherical contact between the pin shaft and the lever can improve the measurement accuracy; the stress state and working state of the piston ring can be guaranteed during the measurement process. Consistent, improve the measurement accuracy; can simultaneously measure the radial elastic value at multiple points when the piston ring is working under dynamic conditions.

The invention relates to the field of tire molding, in particular to a tire molding capsule device and a preparation method thereof. The tire molding capsule device comprises a capsule body and a fixed base; the capsule body is arranged on the fixed base, and includes an outer capsule body, a first reverse capsule body and a second reverse capsule body integrally molded through vulcanization; the first reverse capsule body and the second reverse capsule body are respectively connected with the two ends of the outer capsule body, and are reversely folded; when the capsule body is molded through vulcanization, molds are bonded on the outer surfaces of the outer capsule body, the first reverse capsule body and the second reverse capsule body; the inner surfaces of the outer capsule body, the first reverse capsule body and the second reverse capsule body are inflated by 2-10 bar; the vulcanization time is 30-120 min; and the temperature is 120-180 DEG C. The surface levelness of the capsule body can be controlled and guaranteed by dint of the smoothness of a mold cover. The thickness uniformity of the capsule body is mainly influenced by the thickness fluctuation of a semi-finished film under the condition of stable mold cavity size and inflation inner pressure.

The invention provides a method for measuring capacitance value in a high-voltage environment, which belongs to the technical field of capacitance measurement. Firstly, the parameters of the high-voltage environment where the capacitor to be tested is obtained are obtained, and then a high-voltage DC bias unit, a high-frequency transformer unit, and a voltage transformer unit to be tested are constructed. A voltage and current measurement circuit in which the discharge units connected in parallel are connected in series; an adjustable capacitor is connected to the voltage and current measurement circuit as the capacitor to be measured to obtain a reference working curve; after the capacitor to be measured is connected, the discharge unit is disconnected to start the high-voltage DC voltage regulator Power supply to high voltage output, start the high-frequency transformer unit to measure the voltage and current of the primary side, turn off the high-voltage DC stabilized power supply and high-frequency transformer unit, and connect the discharge unit; according to the corresponding voltage and current of the capacitor to be measured in the reference working curve Find the optional capacitance value as the capacitance value of the capacitor under test in a high voltage environment. The invention ensures that the working state of the circuit is consistent when obtaining the reference working curve and measuring the capacitance to be measured, and realizes high-precision capacitance value measurement in a high-voltage environment.

The invention belongs to the field of wove bag machining, and particularly discloses a woven bag raw material primary crushing device. The woven bag raw material primary crushing device comprises a rack. A pair of reversely-arranged rotating rollers is suspended at the top of the rack in a sliding manner. A spline segment, a sawtooth segment and a thread segment are sequentially arranged on each rotating roller. Nuts cooperating with the thread segments are fixedly connected to the bottom of the rack. Spline sleeves cooperating with the spline segments are rotationally connected to the bottomof the rack, and each spline sleeve is connected with a rotating motor. A cavity is formed in each rotating roller, a piston is in sliding connection in each cavity, a column rod is connected to the end, close to the corresponding spline segment, of each piston, and the other end of each column rod is fixed to the rack. The end, close to the corresponding thread segment, of each cavity communicates with a cold air inflation device, and an air inlet one-way valve is arranged in each cavity. Air outlet holes are formed in the sawtooth segments at intervals, air outlet one-way valves are arrangedin the air outlet holes, and guide covers facing the engagement positions of the sawtooth segments are arranged outside the air outlet holes. According to the scheme, the requirement of carrying outprimary crushing on large woven bag raw materials is met, and the woven bag raw material primary crushing device is most applied to a woven bag machining assembly line.

The invention discloses a two-way rotatable involute tooth profile internal meshing gear pump, which belongs to the technical field of hydraulic transmission. The involute tooth profile is accurately realized through the symmetrical arrangement of a crescent plate, a ring gear and a gear in a seat hole. The two-way rotation of the internal gear pump improves the functionality and scope of application of the involute tooth profile internal gear pump; and through the "displacement" setting of the ring gear in the seat hole and the corresponding setting of the seat plate in the seat hole, it can Effectively avoid the interaction between the ring gear and the inner wall of the seat hole due to the radial load generated by the rotation. The bidirectionally rotatable involute tooth profile internal meshing gear pump of the present invention has a compact structure and is easy to install, and can accurately realize the bidirectional rotation of the involute tooth profile internal meshing gear pump, avoiding the outer periphery of the ring gear and the inner peripheral wall of the seat hole. The wear and tear of the internal meshing gear pump prolongs the service life of the components in the internal meshing gear pump, improves the comprehensive performance of the internal meshing gear pump, and has a good application prospect and promotion value.

The invention discloses a calibration device and method for a laser displacement measurement system, and the device and method are used for carrying out on-site calibration on the laser displacement measurement system on a high-precision rigidity measurement instrument, and belong to the field of measurement and test standards. According to the invention, a gauge block is reliably positioned and conveniently placed on the three beads through a workbench tool and a three-bead measuring mechanism with magnetism, so that the problem that the measurement precision is influenced by the gas film generated between the gauge block and the three-bead measuring mechanism due to installation, repeated positioning of the gauge block and the like is solved, and the field calibration of the laser displacement measurement system is realized.

The invention relates to an air relief valve, in particular to an air relief valve for an electrically controlled tire explosion avoiding system. The air relief valve comprises a valve body and a valve core, wherein the valve body is used for fixing the air relief valve onto a tire, and facilitates the arrangement of the valve core at the same time; the valve body is provided with a notch; the valve core has a hollow structure provided with an exhaust channel, and the valve body rotatably sleeves the valve core; a valve core body is provided with a damage piece at the position relative to thenotch; the air relief valve also comprises a thermal sealing plastic packaging cover; the notch and the damage piece are also sealed together by the thermal sealing plastic packaging cover, so that adamage type sealing structure is formed. Under normal circumstances, the air relief valve realizes good air seal by means of the thermal sealing plastic packaging cover; when deflation is needed, thevalve core of the air relief valve is tried to be rotated, so that the thermal sealing plastic packaging cover is destroyed by using a damage head, and the tire pressure is accordingly reduced rapidly; therefore, the working states of wheels at the left and right sides of a car is enabled to be consistent rapidly, and the control ability is recovered.

The invention discloses a calibration device and method for a laser displacement measurement system, and the device and method are used for carrying out on-site calibration on the laser displacement measurement system on a high-precision rigidity measurement instrument, and belong to the field of measurement and test standards. According to the invention, a gauge block is reliably positioned and conveniently placed on the three beads through a workbench tool and a three-bead measuring mechanism with magnetism, so that the problem that the measurement precision is influenced by the gas film generated between the gauge block and the three-bead measuring mechanism due to installation, repeated positioning of the gauge block and the like is solved, and the field calibration of the laser displacement measurement system is realized.

The invention relates to the field of tire forming, in particular to a tire body of a tire forming capsule and a preparing method of the capsule body. The capsule body of the tire forming capsule comprises an outer capsule body, a first reversely-wrapped capsule body and a second reversely-wrapped capsule body, all of which are integrally formed in a vulcanization manner. The first reversely-wrapped capsule body and the second reversely-wrapped capsule body are connected with the two ends of the outer capsule body correspondingly and are folded back to be reversely wrapped. When the capsule body is formed in the vulcanization manner, the outer surface of the outer capsule body, the outer surface of the first reversely-wrapped capsule body and the outer surface of the second reversely-wrapped capsule body are attached to a die, the inner surface of the outer capsule body, the inner surface of the first reversely-wrapped capsule body and the inner surface of the second reversely-wrapped capsule body are inflated by 2 bar-10 bar, the vulcanization time ranges from 30 min to 120 min, and the temperature ranges from 120 DEG C to 180 DEG C. The flatness of the surface of the capsule body can be ensured through control over the smoothness of a die housing, and uniformity of the thickness of the capsule body is mainly affected by fluctuation of the thickness of semi-finished rubber sheets under the condition that the size and the inflation inner pressure of a die cavity are stable.

The present invention relates to a kind of MMC control method under the unbalanced grid voltage based on Lyapunov function, and the method comprises the following steps: (1) establishing MMC mathematical model; (2) obtaining MMC switching function steady-state value according to MMC mathematical model; 3) Determine the fluctuation of the MMC switching function based on the Lyapunov function; (4) Determine the control value of the MMC switching function according to the steady state value of the MMC switching function and the fluctuation of the MMC switching function, and control the work of the MMC according to the switching function control value. Compared with the prior art, the invention has the advantages of fast response speed, strong robustness, simple system structure, clear physical meaning, low cost, easy realization and the like.

The present invention is an asynchronous frequency division circuit with self-refresh function and anti-single event reversal effect, which includes a majority voting circuit and a parallel three-stage counting frequency division module, and the counting frequency division module includes a frequency division number configuration circuit and a counter circuit. The use of redundant structure, majority voting circuit and self-refresh method greatly improves the anti-single event flipping effect of the asynchronous frequency division circuit; the single event flipping event in a single frequency division circuit is suppressed through redundant voting, and the output frequency is output after utilizing the majority voting The signal performs real-time refresh control on the three counting frequency division modules to ensure that the three counting frequency division modules work in the same state, eliminating the accumulation of timing error states caused by the single event flip effect in the counting frequency division module, and greatly reducing the asynchronous frequency division circuit. The single event flip probability improves the reliability of integrated circuits in space application environments.

The invention discloses a QAM (quadratic amplitude modulation) modulation signal emission method based on an array antenna, and relates to the technical field of radio communication. The QAM modulation signal emission method based on an array antenna includes the steps: decomposing a QAM modulation signal into a plurality of independent BPSK modulation signals; and amplifying the BPSK modulation signals through a saturation power amplifier and radiating the BPSK modulation signals to the outside through the array antenna at the same time, and generating a QAM modulation signal in the expected direction through space power synthesis, wherein distortion occurs in modulation constellation diagrams in other directions. The QAM modulation signal emission method based on an array antenna can realize efficiency linear emission of the QAM modulation signal, can reduce thermo loss of the emitter, and has a secret communication function.