40results about How to "Incentive effect is good" patented technology

The invention relates to a piezoelectric vibration-type pipe flow generator, which belongs to the field of fluid power generation and pipeline monitoring. The inner wall of the pipeline is provided with an inner cylinder; the outer side of the bottom wall of the inner cylinder is embedded with fixed magnets, and ear plates are arranged; the left end cover of the inner cylinder wall is provided with two groups of piezoelectric vibrators and an excitation reed; each piezoelectric vibrator group at least comprises two piezoelectric vibrators whose end parts are loaded with levitated magnets; the excitation reed is loaded with levitating magnets and an excited magnet; the levitating magnets and the levitated magnets are arranged with like magnetic poles arranged oppositely; the substrate of the piezoelectric vibrator is arranged close to the excitation reed; the excited magnet and the fixed magnet are arranged with opposite magnetic poles arranged oppositely; the exciter is arranged on the ear plate through a pin shaft, and an exciting magnet on a swinging arm of the exciter and the excited magnet are arranged with opposite magnetic poles arranged oppositely; and one end of a balance reed is arranged on a ribbed slab and the other end is arranged on the connection plate of the swinging arm. The piezoelectric vibration-type pipe flow generator has the advantages that a multi-degree-of-freedom system is realized, and the frequency band is wide; the piezoelectric vibrators are not contacted with the fluid, a piezoelectric plate only bears compressive stress, the fixed magnet can realize amplification and limiting, the reliability is high, and the power generation amount is large.

The invention relates to a constructing method of an incentive mechanism based on recommended node credibility computation, which is a strategic method and is provided by updating the recommended node credibility of an environment and combining the recommended node credibility with resource node trust value computation. The invention aims to incent resource nodes of a network to evaluate other nodes by updating the credibility of recommended nodes and also can effectively solve the problem of joint cheat between middle nodes in a trusting model of the network. The constructing method comprises the following steps: firstly, introducing a resource node trust value nearness variable; computing the nearing degree of a resource node trust value; then introducing a time decay weighted average variable of the resource node believe value, wherein time decay is taken as a weight factor to average a resource node history believe value in a weighted way; and finally, computing a comprehensive believe value of the resource nodes by combining the resource node believe value nearness variable with the time decay weighted average variable. The method prevents the excessive simpleness of a previous method and has high computation result credibility.

The invention relates to a self-powered device for a river monitoring system and belongs to the technical field of power generation. An end part of a shell body is provided with an end cap, an inner side of a bottom wall of the shell body is provided with a limiting magnet, an outer side is provided with four ear plates, end parts of the four ear plates are connected via crossbeams in a pairwise manner, piezoelectric vibrators and an excitation reed are mounted on a boss of the en cap, and gaskets are connected in a pressed manner between fixed ends of the excitation reed and between fixed ends of two adjacent piezoelectric vibrators; the piezoelectric vibrators are formed by bonding substrates and piezoelectric wafers, butting blocks are mounted on free ends of the piezoelectric vibrators and are butted against the excitation reed, and a free end of the excitation reed is provided with a mass block and an excited magnet; two ends of a pin shaft are respectively fixed on two parallel crossbeams which are parallel to each other; a balance spring, a blunt body and a limiting spring orderly sleeves the pin shaft from bottom to top; an excitation magnet is arranged on the blunt body. Advantages of the device disclosed in the invention are that an energy harvester is a 3 degrees of freedom system, an inherent frequency of each subsystem is easy to adjust, the energy harvester is wide in frequency band, the piezoelectric vibrators are not in contact with fluid, the piezoelectric wafers are only under compressive stress, and high reliability can be realized.

The invention relates to a public welfare undertaking mutual assistance management platform, which comprises an integrated management platform, a volunteer terminal, a salved terminal, a common user terminal and a fund donation terminal, wherein the integrated management platform is provided with a user terminal interface and a donation terminal interface; the user terminal interface is in communication connection with the volunteer terminal, the salved terminal and the common user terminal; and the donation terminal is in communication connection with the fund donation terminal. By use of theplatform, the volunteer terminal, the salved terminal, the common user terminal and the fund donation terminal are arranged to provide a terminal login terminal for population, including volunteers,served objects, charity donation departments and population who participate in public benefit activities but need to employ volunteers to provide salvation service, and the integrated management platform is arranged to link four terminal login platforms so as to realize the ordered and networked management of the whole platform.

The invention discloses an echo displacement detection system based on acoustic radiation force and an echo displacement imaging system thereof, and an invalid echo corresponding to an exciting pulse signal is removed by linear interpolation; a time sampling window is adjusted according to the smoothness index adaptation of the echo; the average displacement speed of the echo is calculated in the time sampling window by adopting two-dimensional self-correlation Loupas algorithm to obtain the specific displacement of the echo in time direction; the interference information of the echo displacement caused by organization movement is eliminated by a motion filtering method such that the displacement detection has higher reliability and stronger noise immunity. The imaging system comprises the displacement detection system and can provide multi-mode acoustic radiation force imaging related with organization viscoelasticity, at the same time, interference generated by electronic noise is removed through relevant frame treatment to steadily display the images, the display resolution of the image is enhanced by a contrast stretching method and the pressure information is supplied for acoustic radiation force imaging under the present operating status, thus a doctor can analyze and safely operate the images.

The invention discloses an echo displacement detecting method and imaging method based on sound radiation force. Linear interpolation is used for removing the invalid echo corresponding to an drive pulse signal; a time sampling window is adjusted in a self-adaptive mode according to the smoothness index of the echo; a two-dimensional self-correlation Loupas algorithm is used for calculating the average displacement speed of the echo in the time sampling window, and the specific displacement of the echo in the time direction is obtained; a movement filtering manner is used for eliminating the interference information, brought by the tissue movement, on the echo displacement, the reliability of displacement detection is higher, and the noise-resistance capability is higher. The imaging method includes the displacement detecting method, multi-mode sound radiation force imaging correlated to the organization visco-elasticity can be provided, meanwhile, frame correlation processing is adopted for removing the interference generated by electronic noise so that image displaying can be more stable, the display resolution of a stretched and strengthened image is compared, the pressure information in the current working state is provided for sound radiation force imaging, and a doctor can conveniently analyze the image and safely operate.

The invention provides an excitation method and device and electronic equipment. The excitation method comprises the following steps: acquiring basic points issued to each server by an integral service system according to a set period of the integral service system; obtaining a point issuing operation triggered by a user, issuing a target number of points to the account of the user according to the point issuing operation and a second preset point issuing rule of each store so as to add the target number of the account points to the user; updating the basic points of all stores. When the userowns the account points, the user can exchange commodities in the credit service system according to the preset commodity exchange rules through the account points. According to the excitation method,after the user exchanges the commodity in the point service system, the user is promoted to trigger the point issuing operation to obtain more points from the store, so that the business amount of the store is increased, and the excitation method can well stimulate the consumer to perform shopping again, has a good incentive effect and is suitable for customer habits.

The invention relates to a multi-vibrator piezoelectric wind energy capturing device and belongs to the field of fluid power generation. Each side wall of a housing is provided with a flow passage hole; one end of the housing is equipped with a vertical plate provided with a flow passage hole and a raised bench; the raised bench is equipped with piezoelectric vibrators and an elastic reed; and each piezoelectric vibrator is formed by bonding a substrate and a piezoelectric sheet. The non-fixed end of each piezoelectric vibrator is provided with a push block; the non-fixed end of each push block is abutted against the elastic reed; the non-fixed end of the elastic reed is equipped with a mass block and a flow disturbance body; two moving magnets are symmetrically embedded in the flow disturbance body; the side walls of the housing are symmetrically provided with two static magnets; the moving magnets and the static magnets are in same magnetic pole opposite arrangement; and the geometric centers of moving magnets and static magnets are located on the same circumference. The piezoelectric vibrator is in a flat and straight structure before installation and in a bending structure after installation. The advantages are that self-excited vibration power generation is realized; fluid velocity and direction adaptability is high, and the structure is simple; each piezoelectric sheet only bears compressive stress, and reliability is high; and the multiple vibrators work synchronously, and power generating capability is high.

The invention relates to an indirect excitation multi-oscillator piezoelectric aerogenerator, and belongs to the fluid generating field; a hosing side wall is provided with a through-flow hole; one end of the housing is provided with a vertical plate with a through-flow hole and a boss; the boss is provided with piezoelectric oscillator groups and elastic reeds; each piezoelectric oscillator group at least comprises two piezoelectric oscillators with a suspended magnet in the end portion; the elastic reed is provided with a suspending magnet, and same-polarity magnet poles of the suspended and suspending magnets are arranged in opposite; the non-fixed end of the elastic reed is provided with a mass block and a flow-disturbing body; the flow-disturbing body is embedded with two movable magnets; the upper and lower side walls of the housing are provided with two fixed magnets; the same-polarity magnet poles of the movable magnets and fixed magnets are arranged in opposite; the piezoelectric oscillator is a flattened structure before installation, and a bended structure after installation. The advantages are that self excitation vibration generation is realized, the fluid speed and direction are strong in adaptability, and the structure is simple; the piezoelectric patches only bear crushing stress, and are high in reliability; multi-oscillator synchronization work is realized, thus providing strong power generating capability.

The invention discloses a focusing shock wave excitation device for performing non-contact excitation on an MEMS (micro electro mechanical system) micro structure. The focusing shock wave excitation device comprises a base plate, wherein a manual three-axis displacement table and a support seat are arranged on the base plate; a micro structure unit is arranged on a Z-axis slide plate of the manual three-axis displacement table; an ellipsoid cavity with an inner cavity being half of an ellipsoid surface is arranged at the upper end of the support seat; the first focus point of the ellipsoid surface is positioned in the ellipsoid cavity; the micro structure unit is positioned at one side of a second focus point of the ellipsoid surface; a pin electrode unit is arranged on the ellipsoid cavity; two pin electrodes are electrically connected with two electrodes of a high-voltage capacitor; a first air switch is arranged between the high-voltage capacitor and one pin electrode; the distance between the pin points of the second pin electrodes is smaller than the maximum air breakdown gap after the high-voltage capacitor is sufficiently charged; the high-voltage capacitor is electrically connected to positive and negative electrodes of a high-voltage power supply. The focusing shock wave excitation device has the beneficial effects that the interference of the vibration response of the base structure on the test result can be avoided; the non-contact excitation on the MEMS micro structure is realized; the excitation effect is good; the dynamic feature parameters of the micro structure are convenient to obtain.

The present invention discloses a focused shock wave excitation device for the dynamic feature testing of the microstructure of an MEMS (micro-electromechanical system). The device includes a substrate, a manual tri-axial displacement table and a supporting seat; the Z-axis slide plate of the manual tri-axial displacement table is provided with a microstructure unit; the upper end of the supporting seat is provided with an ellipsoidal cavity of which the inner cavity is half of an ellipsoidal surface; the first focus of the ellipsoidal surface is located in the ellipsoidal cavity; two sides of the ellipsoidal cavity are symmetrically provided with two pin electrode units; the tips of the two pin electrode units are located at the cross section of the first focus and point to the first focus; the microstructure of the MEMS is located at the second focus of the ellipsoidal surface; the two pin electrodes are electrically connected with the two poles of a high-voltage capacitor; a first air switch is arranged between one pin electrode and the high-voltage capacitor; the two poles of the high-voltage capacitor are electrically connected with a high-voltage power source; and the connection and disconnection of the high-voltage capacitor and the high-voltage power source are controlled by a second air switch. With the focused shock wave excitation device adopted, interference on a testing result caused by the vibration response of a base structure can be avoided, the non-contact excitation of the microstructure of the MEMS can be realized, an excitation effect is good, and the testing of the dynamic feature parameters of the microstructure can be facilitated.

The invention specifically provides a low-power-consumption high-precision electromagnetic heat meter. The low-power-consumption high-precision electromagnetic heat meter comprises a mechanical rectifier body, an electromagnetic drive signal collecting structure and a control and display structure. The electromagnetic drive signal collecting structure is fixed to the front end of the mechanical rectifier body through a flange, the control and display structure is arranged outside the mechanical rectifier body and the electromagnetic drive signal collecting structure, and the control and display structure is electrically connected with the electromagnetic drive signal collecting structure. The low-power-consumption high-precision electromagnetic heat meter has the following advantages that the magnetic field intensity is large, strength is large, power consumption is low, and the overall efficiency of the low-power-consumption high-precision electromagnetic heat meter is improved; it can be effectively guaranteed that an excitation coil is stably fixed to the outer wall of a pipe, the arousal effect on liquid is better, and the measuring precision of the heat meter is improved; an integral structure is adopted, and therefore the pipeline liquid tightness is effectively improved; the Reynolds coefficient of fluid is reduced.

The invention relates to a water current vibrating multi-oscillator piezoelectric energy accumulator, and belongs to the fluid power generating field; a housing is provided with a flow passage hole; the end portion is provided with a vertical plate having a flow passage hole and a boss; the left side and right side of the boss are provided with piezoelectric oscillators of the same number; when the piezoelectric oscillator number arranged on one side of the boss is >1, a pad is pressed between fixed ends of two adjacent piezoelectric oscillators; the piezoelectric oscillator is formed by bonding a substrate and piezoelectric patches; the substrates of the piezoelectric oscillators on two sides of the boss are arranged nearby; the other end of the piezoelectric oscillator is provided with a push block; the push block is arranged on one side of the piezoelectric oscillator substrate, and the other end abuts against an exciter swing arm; the ear plate of the exciter with a hollow turbulent flow body is provided with a shaft hole; a guide pillar penetrates the shaft hole and is fixed on the housing side wall; the exciter is fixed on the top and bottom side walls through the ear plates, guide pillars, and springs; the piezoelectric oscillator is a flattened structure before installation and a bending structure after installation.

The invention belongs to the field of mechanical vibration and testing, and particularly relates to a non-contact electromagnetic vibration exciter with a surface morphology memory function and application thereof. According to the technical scheme, the non-contact electromagnetic vibration exciter comprises a platform, an auxiliary positioning frame, a mechanical gripper and an excitation structure, wherein the auxiliary positioning frame is arranged on the platform through a bearing; the mechanical gripper comprises a connecting rod, an upper end fixing plate, outer arms, inner arms, a lowerend fixing plate and a gripper end surface, the connecting rod is connected with the auxiliary positioning frame, the upper end fixing plate and the lower end fixing plate are correspondingly connected at the two ends of the connecting rod in a clamped mode, the two ends of each outer arm are correspondingly installed on the upper end fixing plate and the gripper end surface, one end of each inner arm is connected with the lower end fixing plate, and the other end of each inner arm is installed in the middle of the corresponding outer arm; and the excitation structure is arranged in the mechanical gripper. According to the non-contact electromagnetic vibration exciter, the morphology of the electromagnetic vibration exciter can be accordingly changed according to metal blades with different surface morphologies so that a better excitation effect can be obtained, and then vibration and the strength test can be carried out more accurately.