56results about How to "Meet portability requirements" patented technology

The invention discloses OCT-based in-situ three-dimensional printing skin repairing equipment and an implementation method thereof. The implementation method comprises the following steps: scanning a skin injury region by adopting an OCT technology to acquire a high-resolution three-dimensional skin injury OCT image; carrying out three-dimensional bionic structural design and modeling on the skin injury part based on the OCT image so as to ensure the reconstruction requirements of skin repair to layered interfaces and vascular networks in tissues; and then, transmitting the modeled skin injury repair model data to a 3D biological printer to carry out model layering and printing, thereby implementing quick, accurate and in-situ repair on the injured part. The OCT-based in-situ three-dimensional printing skin repairing equipment has the advantages of no contact, no injury and real-time imaging, meets the requirement of skin in-situ printing on high-resolution imaging of internal micro-structures, and can acquire distribution and density information of blood vessels in the skin corium layer so as to be convenient for constructing a three-dimensional model closer to real skin structures and functions.

The invention provides a wearable assistance finger based on myoelectric control. The wearable assistance finger comprises an under-actuated simulated human finger, a magnetic coupling interface, a rehabilitation assistance connector, a myoelectric collecting array, a servo motor and a control system, wherein the under-actuated simulated human finger adopts a mixed driving mode of connecting rod driving and driving tendon driving, and the requirement of moving the patient finger joints is sufficiently met. Meanwhile, a control method of the wearable assistance finger based on myoelectric control is provided. The wearable assistance finger has the advantages of simple structure, light weight and good reliability. A force sensor and a position sensor are connected onto a driving tendon, the force and the position for driving the finger to move can be obtained through the telescopic movement of the driving tendon, and the quantification index can be provided for the rehabilitation process. The wearable assistance finger has the advantages that the structure is simple, the cost is low, the operation and the wearing are convenient, the man-machine interaction performance is good, the obstruction caused by muscle and joint rigidity can be effectively overcome, the patient can obtain effective rehabilitation treatment, and better application prospects are realized in the fields of finger rehabilitation and the like.

The invention relates to a monocular vision box body volume measuring method based on multi-line structural light image recognition. The monocular vision box body volume measuring method comprises thefollowing steps that (1) a camera is calibrated, and multi-line laser plane parameters are acquired; (2) calculation of mapping of two-dimensional coordinates to three-dimensional spatial coordinatesis conducted; (3) the box edges are detected and the laser central line is extracted by using a deep learning method; and (4) structural light with a well shape, structural light with a dual-parallel-line and structural light with a cross shape are correspondingly used for measuring different box bodies to obtain the volumes of inerratic box bodies. According to the monocular vision box body volume measuring method based on multi-line structural light image recognition, the multi-line structural light (the well shape, the cross shape and the parallel line shape) is casted on the measured boxbody plane, intersection points of the line structural light and the edges of the boxed are detected through imaging processing, the points are converted from the two-dimensional coordinates to three-dimensional spatial coordinates according to a structural light triangulation measuring theory to calculate the lengths, the widths and the heights of the inerratic box bodies, and the volumes are further calculated. According to the monocular vision box body volume measuring method based on multi-line structural light image recognition, the complexity of the algorithm is low, the method can be greatly applied to PC terminals and mobile terminal devices, real-time on-line measuring can be conducted, and the requirement of portability is met.

The invention relates to a traffic information communication system, which comprises a data collecting module which is used to obtain road traffic information of each road section and a data processing module which is used to store a database of the road traffic information of each road section, wherein each road section is respectively marked, the road traffic information can be processed into a data packet which accords with a transmission protocol, the road traffic information of each road section can be corresponding to a label of the road section in the data packet, the traffic information communication system also comprises a data sending unit which is used to modulate the data packet into a simulation radiofrequency signal to transmit and an information obtaining terminal which comprises a data receiving unit which is used to receive the data packet and a storage unit which is used to store an electronic map, wherein each road section in the electronic map is respectively marked with the label, the label is same with the label which represents same road section in the database of the data processing module, the information obtaining terminal also comprises a processing unit which is used to decode the data packet which is received by the data receiving unit and to reflect the road traffic information on a corresponding road section of the electronic map, and an information output unit which is used to output the electronic map which reflects the road traffic information.

The invention relates to a portable wireless laser communication terminal machine which belongs to the technical field of communication. The portable wireless laser communication terminal machine comprises a pickup, a sound reproducer, an audio-frequency voltage / power amplifier, a coder-decoder, a microcontroller, a modulation drive circuit, a semiconductor laser, an emission optical system and asignal back-end processing circuit, wherein the signal back-end processing circuit is sequentially connected with a photoelectric detector, a front-end processing circuit and a receiving optical system; the semiconductor laser is a pulse semiconductor laser; the emission optical system collimates light beams emitted by the semiconductor laser, and the value selection range of the divergence angleof the collimated light beams is greater than or equal to 1.5 degrees and smaller than or equal to 12 degrees; and the photoelectric detector and the front-end processing circuit are provided with silicon four-quadrant detectors or indium-gallium-arsenic four-quadrant detectors. The invention realizes signal optical detection and collimation integration, does not need an independent collimation passage for accurately collimating the light beams, does not need an independent beacon optical tracking system and a stabilized platform and enables the volume and the weight of the terminal machine tomeet the portable requirement.

The invention provides a micro electromechanical device and a manufacturing method thereof. The manufacturing method comprises the following steps of: providing a base plate and a semiconductor substrate, wherein a control circuit is formed on the semiconductor substrate; forming a base plate sacrificial layer on the base plate; forming a semiconductor material layer on the base plate sacrificiallayer; forming an interlayer dielectric layer covering the control circuit on the semiconductor substrate, wherein an interconnection structure electrically connected with the control circuit is formed on the interlayer dielectric layer; performing a bonding process to bond the interlayer dielectric layer and the semiconductor material layer together; removing the base plate sacrificial layer, and separating the base plate and the semiconductor material layer; and manufacturing the micro electromechanical device electrically connected with the interconnection structure on the semiconductor substrate by using the semiconductor material layer. The embodiment of the invention improves the integration level of the micro electromechanical device to meet the requirement on portability in application.

A Reed Solomon code decoder hardware multiplexing method and a low hardware complexity decoding device thereof belong to the technical field of digital information transmission technique. The hardware resource multiplexing method complexes a finite field adder, a finite field multiplier and a register to complete syndrome calculating, syndrome storing, error position polynomial calculating, error value polynomial calculating and error code correcting in the Reed Solomon decoding calculation. The hardware resource multiplexing method is universal to various Reed Solomon decoders with different code rates and parameters. The decoding device comprises the following components: a finite field adder, a finite field multiplier, a register, a receiving sequence memorizer, a syndrome memorizer and the like. The Reed Solomon decoding calculation is realized according to the multiplexing method. The multiplexing method and decoding device disclosed in the invention can evidently reduce the complexity of the hardware for decoding Reed Solomon code.

The invention relates to a low-power-consumption portable Bluetooth intelligent lock and belongs to the technical field of wireless communication. The low-power-consumption portable Bluetooth intelligent lock comprises a user terminal and an intelligent lock body; the user terminal is communication with the intelligent lock body through Bluetooth. The user terminal is an intelligent terminal suchas an intelligent mobile phone or a tablet computer, and a user can install special intelligent unlocking software in the user terminal and uses the intelligent unlocking software to complete the functions such as starting and connection of the Bluetooth and sending of unlocking codes; the intelligent lock body comprises a lock body and a lock control assembly; the lock body comprises a lock shell, a bearing and a lock beam. The lock control assembly comprises a DA14580 control and communication module, a key module, an LED lamp module, an alarm module, a spring bolt control module, a batteryrear cover opening module and a power module. Compared with the prior art, the low-power-consumption portable Bluetooth intelligent lock has the advantages of being low in power consumption, small insize, portable, safe, convenient to operate and the like.

The invention provides an electromyographic signal-based portable real-time lower limb behavior pattern recognition system and method. The system particularly comprises an electromyographic signal acquisition module, an electromyographic signal preprocessing module, a multichannel AD data sampling module, an embedded main control module, a power module and a display device. electromyographic signal features for the lower limb behavior pattern are subjected to real-time recognition and output, the single decoding time for the electromyographic signal features is less than 300 microseconds, andthe real-time performance requirement is met; the total weight of a hardware system is about 100 g, the overall hardware control board size is 90 mm * 90 mm, and the portability requirement is met; the research purpose of the system is to be used in fields such as prosthesis or exoskeleton, real-time discrimination and recognition on the motion state can be realized through the system, and the system is further used as a basis for motion control on prosthesis / exoskeleton devices and a basis for providing motion control on prosthesis / exoskeleton.

The invention discloses a portable high frequency electric knife controller which comprises a central control module, a driver module, a power output module, a signal acquisition module and a power supply nodule. For the central control module, (A) is used to provide a PWM driving signal for the driver module; (B) is used to detect a system power supply signal feed backed by the power supply nodule; (C) is used to control the working model of an inverted rectifying circuit in the power supply nodule; (D) is used to scan and detect an electric knife handle and a patient counter electrode; (E) is used to provide a man machine interface connected with an external parts; the combined application of the controller and the high frequency accessory of the invention is wider than the application scope of the common high frequency electric knife. The invention is particularly suitable for the first aid of field wounded personnel, the first aid of war wounded personnel and the first aid of traffic accident wounded personnel, suitable for the first aid of field engineer wound personnel, suitable for the first aid of offshore wounded personnel, suitable for all occasions without a power supply condition, suitable for the cutting and the arrest bleeding of open wounded personnel, and suitable for the first aid of an accident event, such as the first aids of earthquake wounded personnel, water flood wounded personnel, typhoon wounded personnel, war wounded personnel and traffic accident wounded personnel.

The invention provides a safety shield, and a digital-certificate management system and method. The safety shield includes a communication interface and an intelligent chip. The intelligent chip includes a storage unit which is connected with the communication interface and receives and stores an activation data subkey (ADK) subkey and a certificate public key (CPK); an activation unit which is connected with the communication interface so as to receive the activation data and use the ADK subkey to decipher the activation data so as to activate the intelligent chip; and a processing unit which is connected with the communication interface so as to receive an application installation certificate AIC and a public key infrastructure (PKI) application and verify the AIC according to the CPK and install the PKI application under a condition that the verification of the AIC is passed. Through use of the safety shield, and the digital-certificate management system and method, management of at least one digital certificate can be realized.

The invention belongs to the technical field of integrated circuits, in particular to an adaptive current detection circuit applied to a wide-conversion ratio boost converter. The circuit comprises a single-period double-sampling circuit, a reference level generating circuit and an adaptive gain circuit, wherein the single-period double-sampling circuit is used for generating two sampling signals, namely an inductive current signal and an output voltage signal, and providing the signals for the self-adaptive gain circuit; the reference level generating circuit is used for generating a reference level and providing the reference level for the self-adaptive gain circuit; and the adaptive gain circuit generates a needed inductive current sampling signal which is adaptive to the output voltage by using the signals provided by the single-period double-sampling circuit and the reference level generating circuit. The adaptive current detection circuit avoids a method for implementing different conversion ratios by selecting an off-chip compensating network. Therefore, the adaptive current detection circuit has the advantages of making the compensating network become simple and integrated inside a chip, reducing the number of off-chip elements, meeting the requirement on portability, reducing the cost and having good application prospect.

The invention discloses a miniaturized integrated ultrasonic cell disruptor. The disruptor comprises a main box body, the main box body is further internally provided with a circulating cooling tank and a refrigeration mechanism, and the circulating cooling tank comprises a hollow cooling tank body; the cooling tank body is internally provided with an inner cavity wall, the inner cavity wall separates a cavity of the cooling tank body into an inner part and an outer part, wherein the tops of the inner part and the outer part are communicated with each other; the inner cavity wall is provided with a water inlet, the outer wall of the cooling tank body is provided with a water outlet, and the water inlet and the water outlet are communicated with a cooling water outlet pipe and a cooling water inlet pipe of the refrigeration mechanism respectively; a reaction container is installed in the cavity of the inner part of the cooling tank body and is cooled by cooling water provided by the refrigeration mechanism. The ultrasonic cell disruptor achieves the integration of an ultrasonic cell disruptor; moreover, when the integration is achieved, the size of a cooling system is greatly reduced, and therefore the miniaturization of the entire ultrasonic cell disruptor is achieved.

The invention discloses a surgical auxiliary instrument, and the instrument comprises a first power assembly and a second power assembly; the first power assembly comprises a first driving unit and a first transmission part, the first driving unit and the first transmission part are arranged in a transmission mode, and the first transmission part is driven by the first driving unit, so that the first transmission part is provided with an extending working state and a retracting working state, and the first transmission part can transmit torque; the second power assembly comprises a second driving unit and a second transmission part, the second driving unit and the second transmission part are arranged in a transmission mode, and the second transmission part is driven by the second driving unit in adaptive transmission with the second transmission part, so that the second transmission part has an outward extending working state and a retracting working state; and the electric control unit is electrically connected with the first driving unit and the second driving unit, so that the first driving unit and the second driving unit are controlled by the electric control unit. The operation auxiliary instrument has the advantages of being simple in structure, complete in function, convenient to carry and control and the like.

The invention discloses a step-down integrated circuit and an electronic cigarette, wherein the step-down integrated circuit comprises a power supply module, a step-up charging module, a controller module, a driving module and a feedback operational amplification module which are integrated in an integrated chip, wherein the step-up charging module is used for boosting voltage input by an external power supply and charging batteries; the power supply module is used for supplying power to the controller module and the driving module; the operational amplification module is used for acquiring the sampling voltage of the output end of a peripheral power circuit and feeding the sampling voltage back to the controller module; and the controller module is used for controlling the starting or closing of the step-up charging module and the power supply module and controlling the driving module to output a PWM signal according to the sampling voltage input by the operational amplification module so as to drive the switching-on or switching-off of an external switch tube. The technical scheme disclosed by the invention realizes the step-down integrated circuit applied to the electronic cigarette, little space is occupied, and the interference resistance is high.

The invention provides a portable nuclear instrument system signal detection and fault positioning device. The device comprises a shell, a power supply board, a main control board, a weak current signal acquisition board, a source range pulse signal acquisition board, a high voltage output board and a liquid crystal display board, wherein an accommodating cavity is formed in the shell; the power supply board, the main control board, the weak current signal acquisition board, the source range pulse signal acquisition board and the high voltage output board are all placed in the accommodating cavity; the liquid crystal display panel is fixed on the surface of the shell, and the power panel, the weak current signal acquisition board, the source range pulse signal acquisition board, the high voltage output board and the liquid crystal display panel are all electrically connected with the main control board; the weak current signal acquisition board, the source range pulse signal acquisition board and the high voltage output board are provided with corresponding HN terminals; and the HN terminal is arranged on the surface of the shell. According to the invention, when an abnormal signaloccurs, a fault section can be troubleshot through a segmentation test function of the device, so that troubleshooting and positioning are realized.

The invention discloses a floor type automatic puncture device for tumor radioactive seed implantation treatment. The main functions of the floor type automatic puncture device comprises the positioning of a puncture needle guide module and the automatic puncturing of a puncture module. The floor type automatic puncture device has the advantages that tumor puncture of different parts can be achieved by replacing different guide devices, the guide module and the puncture module implant seeds into the corresponding part in a coordinated manner to achieve precise implantation, and accordingly precise radiotherapy is achieved; when the floor type automatic puncture device is used, the device is placed beside a CT bed, the guide module precisely position the guide device to the treatment part,and the puncture module implant a puncture needle into a human body to achieve precise radioactive seed implantation; the floor type automatic puncture device is stable in structure, precise, efficient and capable of being used as the reference of radiotherapy seed implantation auxiliary equipment; the positioning of the guide module and the puncture module adopts rotation freedom degree, workingspace is increased, the extending part can be folded and retracted after work, space occupation is reduced greatly, and moving is facilitated; key freedom degrees are provided with limit sensors to guarantee moving safety.

A portable mobile power source based on a combination of wind power friction power generation and solar power generation. The portable mobile power source comprises a shell (20) having an accommodating chamber (21); a wind power generation device (30), a solar power generation device (40) and a control circuit module (50) which are arranged inside the accommodating chamber, wherein the wind power generation device comprises a plurality of friction power generators (G), each friction power generator comprising: a first substrate (11) and a second substrate (12); at least one support component (131, 132); a first electrode layer (14) and a second electrode layer (15); at least one layer of macromoleclar polymer insulation layers (161, 162), wherein a friction interface is formed between the first electrode layer and / or the second electrode layer and one or more layers of macromoleclar polymer insulation layers; and / or a friction interface is formed between at least two layers of the plurality of macromoleclar polymer insulation layers; and at least one layer of the two layers forming the friction interface is a free mobile layer. This type of portable mobile power source can not only use wind energy, but can also use solar energy, and is simple in structure and low in manufacturing costs.

The embodiment of the invention provides a passive radiator tuning box, which comprises a bracket, a loudspeaker, a passive diaphragm and a limit elastic wave, wherein the bracket forms a cavity withan opening at one end; the loudspeaker at least includes a voice coil and a cone, and the loudspeaker is fixed in the cavity by connecting the passive diaphragm and the limit elastic wave; the passivediaphragm is arranged around the cone and is arranged at the opening end of the cavity together with the cone; and the limit elastic wave is connected between the lower end of the loudspeaker and thebracket and used for supporting the loudspeaker and preventing transverse movement of the loudspeaker. According to the embodiment of the invention, the upper end of the loudspeaker is provided withthe passive diaphragm connected with the bracket, and the loudspeaker and the passive diaphragm are arranged in a two-in-one manner, thereby being capable of designing the overall PR tuning box to besmaller in size so as to be applicable to small-size portable sound boxes, and meeting the requirement of being portable of consumers.

The invention discloses an airtightness detection system through differential pressure. The system includes a central processing module, a data acquisition module, a signal conditioning module, a solenoid valve control module, an acousto-optic alarm module, a power supply module and a man-machine interaction module. The data acquisition module sends an acquired signal that has been processed by the signal conditioning module to the central processing module for processing. The solenoid valve control module controls a solenoid valve to be automatically on and off through an instruction of the central processing module. The acousto-optic alarm module is connected to the central processing module. The power supply module provides power to the whole system. The man-machine interaction module controls the input and the output of the system. The system is easy to operate, exhibits good stability and high precision, enables the detection speed to be increased through adoption of an ARM hardware platform, and also meets the requirement of portability.

The invention discloses a portable optical measuring instrument. The portable optical measuring instrument has high space-time resolution and achieves nondestructive non-contact measurement. The wavelength-division multiplexing technology is adopted, a laser light source serves as both an excitation light source and a detection light source, and the detection light source is supplied to a Fizeau interferomenter of an all-optical-fiber structure to achieve ultrasonic vibration detection. A detection system which generally needs two laser devices to operate can be simplified into a portable structure which needs only one laser device. Constituent elements of the portable optical measuring instrument are small in size, optical fibers are used as connecting parts among the elements, the limitation of a traditional optical structure is broken through, and thus the portable optical measuring instrument can be packaged to form an integrated detection system with only an excitation laser probe and a detection laser probe retaining outside. The system has a compact structure with the weight greatly reduced, can meet the requirements for portability and measuring precision and can be flexibly used in some environments where operation is inconvenient.

The invention discloses a portable light communication terminal applied to electronic equipment. The portable light communication terminal comprises a light signal conversion module used for receiving external light communication signals and converting the signals into first electric signals, a signal processing module used for converting the first electric signals into communication signals capable of being received by electronic equipment, receiving the communication signals emitted by the electronic equipment and converting the communication signals into second electric signals, a light signal sending module used for receiving the second electric signals and converting the second electric signals outwards, and a storing module used for storing programs used for carrying out modulation and demodulation on interaction information between the signal processing module and the electronic equipment, wherein the storing module is arranged on a server and is for call of the electronic equipment. According to the light communication terminal, signal modulation and demodulation can be realized out of the light communication terminal, the light communication terminal structure is simplified, and portability requirement is satisfied.

The invention provides a close-contact wireless speaker, which includes a box body, a U-shaped through groove is opened on the upper surface of the box body, and the two sides of the U-shaped through groove are magnetic induction areas; the two long sides of the box body are provided with speaker areas , one wide side of the box is provided with an external interface area, the external interface area includes a power switch, a Micro USB interface and a 3.5mm headphone jack; there is a circle of LED indicators on the surface of the box, and the LED indicator is located between the speaker area and the external interface area There is a circuit board inside the cabinet, and the circuit board includes a preamplifier module, an equalizer module, a power amplifier module, a processor module and a power management module. The present invention uses near-field magnetic coupling induction technology to transmit audio data so that any mobile device with a built-in speaker can play music as long as it is placed in the U-shaped slot of the speaker without loading any software or making any settings.

The invention relates to a one-dimension metal medium photon crystal, wherein the membrane is formed by metal layer at special thickness and medium layer at special arrangement; said special thickness is same as the metal skin depth; the special arrangement is period structure and quasi-period structure. The invention has high-adsorption band width, adsorption rate, and angle application range decided by the material factors of medium and metal, geometry thickness and repeated unit period number; said parameters based on the demands of adsorption working wavelength range and adsorption rate are selected. The invention has wide incidence angle, wide band, and high adsorption rate to be used to increase adsorption membrane of wideband laser energy meter or power meter receiver; and the narrow-band adsorption type can be used in laser welding or other areas. The invention has simple production and wide application.

The invention provides a disposable specimen cup, a blood analyzer and a use method. The disposable specimen cup is characterized in that electrodes are arranged in a front chamber and a rear chamber; counting pores are formed in a partition plate; a front plate of a specimen cup base is used as a port panel of the specimen cup; a positioning hole, a rear chamber hose port, a front chamber electrode socket and a rear chamber electrode socket are formed and arranged in the port panel; a compressing block handle between the front walls of the front and rear chambers and the front plate is inserted into the positioning hole; a compressing block flattens and cuts off the hoses of the front and rear chamber; an agent is packaged into the front chamber. The blood analyzer is characterized in that a specimen cup port plate is arranged on a panel; a positioning plug, front and rear chamber electrode plugs and a rear chamber negative pressure connecting plug are arranged on the specimen cup port plate, which are respectively inserted into the sockets on the front plate of the specimen cup base and connected with the specimen cup. The use method comprises the following steps: selecting the disposable specimen cup with proper pore aperture and agent according to the test demand; injecting a blood specimen into the front chamber through an injector; uniformly mixing; connecting with the flood analyzer; starting the flood analyzer; producing pressure difference between the front and rear chambers; then detecting the read. The disposable specimen cup and the blood analyzer are free of liquid channels, simple in structure, high in reliability, low in failure rate, and low in cost.

The invention relates to the technical field of self-service financial devices, particularly to a self-service deposit and withdrawal machine and a banknote discharging door structure with a self-locking structure and a self-locking method of the self-service deposit and withdrawal machine. The banknote discharging door structure includes a banknote door, a banknote door frame body, racks, a driving mechanism of the banknote door and a self-locking structure. The racks slide along a sliding groove, the driving mechanism drives the banknote door to move through the racks, a connecting rod, a connecting rod support and a banknote door power shaft, a combined structure is adopted, the banknote door, the banknote door power shaft and the connecting rod support are fixed together and can be seen as a whole, the requirement for module portability is effectively satisfied, the connecting rod support drives a self-locking rod to slide in the sliding groove, after the self-locking rod falls into a self-locking groove, self-locking of the banknote door is realized, the banknote door cannot be pushed open from outside, and thus the safety is improved. The self-locking method can realize banknote door movement and banknote door self-locking only by controlling the driving mechanism, an electrical part is simplified, and a failure rate is low.

The invention discloses a portable optical measuring instrument. The portable optical measuring instrument has high space-time resolution and achieves nondestructive non-contact measurement. The wavelength-division multiplexing technology is adopted, a laser light source serves as both an excitation light source and a detection light source, and the detection light source is supplied to a Fizeau interferomenter of an all-optical-fiber structure to achieve ultrasonic vibration detection. A detection system which generally needs two laser devices to operate can be simplified into a portable structure which needs only one laser device. Constituent elements of the portable optical measuring instrument are small in size, optical fibers are used as connecting parts among the elements, the limitation of a traditional optical structure is broken through, and thus the portable optical measuring instrument can be packaged to form an integrated detection system with only an excitation laser probe and a detection laser probe retaining outside. The system has a compact structure with the weight greatly reduced, can meet the requirements for portability and measuring precision and can be flexibly used in some environments where operation is inconvenient.

The invention relates to the technical field of testing of fatigue of an operation spring of a circuit breaker and in particular discloses a testing device for the fatigue of an operation spring of a high-voltage circuit breaker. The testing device comprises an intelligent handheld collection probe, a testing module which is connected with the intelligent handheld collection probe through an automatic electronic switching circuit, communication interfaces connected with an upper computer and a storage module, wherein the testing module is connected with the upper computer through a filtering and amplifying circuit, a multi-way switch and an A / D (Analogue / Digital) converter in sequence; the testing module comprises a magnetic memory sensor and a plurality of sensors which are used for detecting vortex and have different frequencies; the multi-way switch is connected with a power supply through a DC / DC (Direct Current / Direct Current) converter; the intelligent handheld collection probe is further connected with a temperature sensor and a reversible photoelectric encoder; the temperature sensor and the reversible photoelectric encoder are connected with the multi-way switch; the communication interfaces comprise a USB (Universal Serial Bus) interface and an RS232 interface. The testing device provided by the invention has the advantages of light equipment, high sensitivity and simplicity for operation, can be used for detecting a fatigue index of the spring and can provide data analysis.