79results about How to "Flexible installation" patented technology

The invention discloses a simulating device for fluid flow safety evaluation of oil-gas pipelines. The device comprises a multiphase flow circulating system, a separating system, a fluid injecting system and a waste gas recovery system. The device disclosed by the invention emerges on the basis of fully considering the current fluid flow safety hotspot problem and is capable of simulating a low-temperature high-pressure environment to carry out the fluid flow safety evaluation of the oil-gas pipelines, wherein the evaluation content comprises oil-gas pipeline blockage caused by problems such as hydrate and wax deposit and the oil-gas transmission safety problem caused by pipeline corrosion. The device disclosed by the invention is not limited to the evaluation content and can also be used for exploring the research on the evaluation of multi-phase fluid flow regularity, hydrate inhibitor performance and the like. The device disclosed by the invention has the characteristics of reasonable structure, ingenious design, operational flexibility, accuracy in measurement and the like.

The invention provides a warehouse roadway automatic guided vehicle navigation device based on swing single-line laser radar. The device comprises a laser radar swing control module, a three-dimensional point cloud data collection module and a vehicle navigation control module, the three-dimensional point cloud data collection module comprises the single-line laser radar, a motor and a rotating mechanism, the single-line laser radar serves as collection equipment for point cloud data, the motor and the rotating mechanism provide power for swinging of the single-line laser radar to realize a function of splicing planar point cloud to form three-dimensional space point cloud, the laser radar swing control module is responsible for receiving a control instruction of the vehicle navigation control module and a control task of the motor, and the vehicle navigation control module sends a swing control order to the laser radar swing control module according to current working state, receives and processes point cloud data and calculates according to current visual field point cloud to acquire position of an automatic guided vehicle so as to realize automatic positioning. The warehouse roadway automatic guided vehicle navigation device is simple in realization, high in performance-cost ratio, high in practicability and suitable for automatic guiding of warehouse roadways of various types.

The invention relates to an additional elevator foundation structure of an old building and a construction method of the additional elevator foundation structure, and belongs to the technical field of seismic hardening. The additional elevator foundation structure comprises an external elevator upper structure and an additional elevator foundation structure, wherein the external elevator foundation structure comprises a new pile foundation, a new pile foundation bearing platform, a new bearing platform cushion layer, a new retaining wall and a waterproof protecting layer arranged between the new pile foundation bearing platform and the new bearing platform cushion layer; the upper structure is a steel structure and is connected with the foundation conveniently; the dead load is low; the foundation is simple; the site operation period is short; influences on the foundation of the original structure are low; the position of the original underground pipeline is not required to be changed; the daily life of the original residents is not affected during construction of the additional elevator foundation structure; and an elevator is mounted freely and flexibly. The new elevator is used safely and reliably; the residents go upstairs and downstairs conveniently; the problem that old people and handicapped persons go out inconveniently is solved; in modification of an old housing estate, a mode of bearing an additional elevator by using the additional elevator foundation structure can be widely used in modification of a building which needs the external elevator for improving life convenience; and the additional elevator foundation structure has a wide application prospect.

The invention relates to a technique method of sea removing the sulphur dioxide of gas in the film absorption method, which belongs to the air pollution control technology domain. Its characteristic lies in that the gas cools down through the dust removal and sea water cycle cooling system into the cavity of the hydrophobicity hollow-fibre membrane absorber. After the sea water filters thickly, enters the membrane absorber shell as desulphurization absorption liquid by the flow control part. This method controls the fluid two pressure differences, uses the pore on the sparse water film to cause the fluid and gas separately flow inside and outside the membrane without having the interaction mix, which avoides the shortcoming of traditional aqueous desulphurization method. This invention's effect and the profit are having high efficiency, flexible to install, small floor space, easy to adjust the size, and invariably current control. The membrane absorption method has the very good application prospect in the coast, the islands, and the ships and other place which has rich seawater resource.

An automotive radar sensor installation support is used for fixing a sensor on a bumper. The automotive radar sensor installation support comprises a base and a fixing base, wherein the base extends to form the fixing base, the outer diameter of the fixing base is smaller than that of the base, a containing space used for containing the sensor is formed in the fixing base, two clamping grooves and two buckling holes are formed in the fixing base, the two clamping grooves are symmetrically formed, the two buckling holes are symmetrically formed, the two clamping grooves are used for locating the sensor in a matched mode, and the two buckling holes are used for fixing the sensor in a buckling mode. Therefore, a locating step of the sensor can be flush with any one groove to be inserted into the fixing base, the sensor is arranged on two sides of the central surface at a symmetrical angle, the installation type is more flexible, and the automotive radar sensor installation support is particularly suitable for the area where the assembly space is small to cause installation difficulty. In addition, species of installation supports can be fewer, one installation support is shared by the whole automobile, cost is lower, and quality hidden danger caused by multiple species of installation supports is also avoided.

The invention discloses a method for installing and integrating software, which comprises: establishing common information library which comprises each component information and installing tactics, obtaining the needed component of installing software from common information library according to preset mode when installing software, when integrating the third software, it finishes the installment of the software and the integrating process of the component and the third software according to the installing tactics.

The invention discloses a receiving device for bilaterally collecting electric spinning polymer fiber tubes and aims at providing the device for preparing a porous fiber tubular material which is composed of two types of polymer fiber and has the even wall thickness on the radial direction and the axial direction. The bilateral receiving device comprises a receiving frame system which is independent of a host box body, a controllable regulation system for rotation speed of a metal rod, a rotating disc-connecting rod system which drives the metal rod to do the gradient non-uniform motion on the horizontal direction and a controllable pause system of the host box body arranged at two ends of a track. Wherein, the receiving frame system can realize the bilateral simultaneous collection of fiber; the controllable regulation system for the rotation speed of the metal rod can realize the adjustable speed of the received metal rod by over-regulation of the rotation speed of a speed control motor; the rotating disc-connecting rod system can realize the gradient non-uniform motion of a host on the horizontal direction; and the controllable pause system of the host box body arranged at two ends of the track can realize the controllable pause of the host box body at two ends of the track. The receiving device is applicable to preparing tissue engineering blood vessel stents and other porous fiber tubular materials.

The invention relates to an angle-adjustable flexible-to-install photovoltaic power generation device. The power generation device comprises a support column, a rotation shaft, a swinging arm and a solar cell placing plate. A transverse adjusting mechanism is arranged in the support column. A longitudinal adjusting mechanism is arranged in the swinging arm. The transverse adjusting mechanism comprises a first motor, a first straight gear and a second straight gear. The longitudinal adjusting mechanism comprises a second motor, a second bevel gear, a second bevel gear and a second gear shaft. An installation mechanism is arranged on the solar cell placing plate. An installation assembly comprises two installation blocks. One of the installation blocks is fixed on the solar cell placing plate. In the power generation device, through the transverse adjusting mechanism and the longitudinal adjusting mechanism, reliable adjustment of the solar cell placing plate in multiple angles can be achieved and practicability of the device is improved; and in addition, through the installation mechanism, the solar cell placing plate can be quickly and flexibly installed and practicability of the device is further improved.

The invention discloses a white light source based on a laser, an optical fiber and a light-emitting component, and a light-emitting component manufacturing method, and relates to a white light source and the manufacturing method of a light-emitting component thereof. The manufacturing method of the light-emitting component comprises the following steps of: firstly, etching or engraving the optical fiber, and then solidifying and coating fluorescent powder on the surface of the etched or engraved optical fiber. The white light source based on the laser, the optical fiber and the light-emitting component comprises the laser, the transmission optical fiber and the light-emitting component; the laser is connected with the light-emitting component via the transmission optical fiber. The white light source reduces the loss of light beams during the transmission from the transmission optical fiber to the light-emitting component, facilitates the realization of a linear light source, can separately allocate the laser and the light-emitting component, can install the light source flexibly, ensures that the light-emitting efficiency of the light-emitting component will not be affected by the heat dissipated by the laser, solves the problem that heat dissipation affects light-emitting efficiency, and improves the light-emitting efficiency of the light source, thus the light beams emitted by the light source have uniform color temperature and a high color development index.

The invention discloses a reverse vehicle tracking system and a parking lot management system and relates to the field of intelligent vehicle tracking. The reverse vehicle tracking system comprises avehicle tracking robot, a background server and a vehicle inquire terminal, wherein the vehicle tracking robot comprises a vehicle component and a control acquisition component, the control acquisition component comprises a control module, an information acquisition module and a locating and obstacle avoidance module, the control module detects position information of the vehicle tracking robot based on the locating and obstacle avoidance module and controls the vehicle component, so as to control the vehicle tracking robot to go on patrol, the information acquisition module acquires vehicle information of a vehicle, sends the vehicle information to the control module when the information acquisition module acquires the vehicle information and sends the vehicle information to the background server to be stored, and the vehicle inquire terminal is used for responding to a user operation and acquiring vehicle locating information corresponding to a target vehicle from the background server. The reverse vehicle tracking system disclosed by the invention has the advantages that mounting and maintenance cost is low, mounting is flexible, functions are diversified, and initiative vehicletracking can be completed.

The invention provides an elevator stopping device especially used for an elevator the car of which needs stopping safely in the working area of a well hole with a smaller free space. The elevator stopping device comprises a safety tong arranged on a lift car opposite to a guide rail, wherein the safety tong is connected with a speed limiter cable through a lifting rod, and a speed limiter is connected with a speed limiter tension pulley through the speed limiter cable. The elevator stopping device is characterized by further comprising a fixed seat arranged in the well hole and a progressive clamping device arranged on the fixed seat for acting on the speed limiter cable. With the advantages of flexible installation position, convenient operation, safety and reliability, simple structure and lower cost, the elevator stopping device can be installed at the top, the middle or the bottom of the well hole and can ensure the safety of inspection and maintenance personnel at any working area of well hole pits, car tops, well hole platforms and well hole tops.

The invention discloses a container for bath, in particular a bathtub for an infant. The bathtub for the infant comprises a bathtub body, and a connected stool is arranged on one corner of the lower part of the bathtub body; and the bathtub is characterized in that: a steam bubbler is arranged in a gap separated by the bottom end of the connected stool, and connected with the bathtub body through a steam pipe. The bathtub effectively makes the bath of the infant more interesting, performs steam massage on the infant when fulfilling an aim of the bath, and is favorable for physical and mental health of the infant.

The application discloses a parameter setting method and system of an on-board unit (OBU) and apparatuses. Because the sensitivity or transmitting power of a calibrating device is configured based on the sensitivity or transmitting power of a simulated road-side unit (RSU) as well as the signal attenuation amount caused by the environment where the on-board unit and the calibrating device are located, successful interaction between the on-board unit and the calibrating device represents that the transmitting power or sensitivity set by the on-board unit meets the requirement and communication with the simulated road-side unit can be completed. Therefore, the successful rate of communication between the OBU and the RSU can be ensured. When the OBU is installed at a different position, the transmitting power or sensitivity of the OBU can be set by using the method, so that the OBU installation becomes flexible. Besides, the parameter setting method is simple, rapid and convenient and is suitable for large-scale popularization and application.

The invention discloses an electric automobile charging device with a flexible power distribution function. The electric automobile charging device comprises a charging pile body, L charging terminalsand a micro-processing chip, L is a positive integer larger than 2, the charging pile body and the charging terminals are designed in a distributed manner, the charging terminals are arranged on charging parking spaces, the charging pile body are electrically connected with the charging terminals through power lines, the micro-processing chip is arranged on the charging pile body, the first signal output end of the micro-processing chip is electrically connected with the signal input end of the charging pile body, and the signal input end of the micro-processing chip is in signal connection with signal output ends of the charging terminals. According to the device, power supplies and charging devices are placed in a distributed manner, objective requirements of the charging parking spacesfor positions are reduced, working noise is reduced, a power control module sufficiently call various power supply modules, the use ratio of the device is ensured, the real power of the device reacha rated value, and power waste is avoided.

Provided is a combined medical test solution centrifugal device, belonging to the field of medical instrument. The combined medical test solution centrifugal device is composed of a waste solution tank support baffle board, a centrifugal mechanism, a lifting mechanism, a centrifugal flywheel assembly, a top cover, a mechanical arm stepping motor, a solution injection mechanical arm and a waste solution tank. The combined medical test solution centrifugal device is used for controlling centrifugation of test tubes and extraction of test solutions with four degrees of freedom as well as injection of additives and other motions. Therefore, the device is more flexible. The multiple test tubes can be simultaneously centrifuged by one centrifugation operation so that efficiency is increased. Thesolution injection mechanical arm can perform operation on the different test tubes simultaneously. Additionally, different additives can be injected into the different test tubes so that centrifugation efficiency is improved. Centrifugation and extraction operation are fully-automated. The amount of extraction solutions is strictly controlled by a machine. Therefore, extraction operation precision is improved. Workload of an experimenter is reduced due to high degree of automation while unnecessary errors made by a person are avoided.

The invention is suitable for the technical field of support structures, and discloses an installation support and a lamp comprising the same. The installation structure comprises a top board, a side board and a supporting component, wherein the side board is hinged with one end of the top board, one end of the supporting component is hinged on the side board or the top board, the other end of the supporting component is provided with a clamp tongue part in a protruded mode, and the top board or the side board is provided with a supporting hole used for inserting of the clamp tongue part. The lamp comprises a shell assembly and a luminescence assembly arranged inside the shell assembly, wherein the shell assembly is connected with the installation support. According to the installation support and the lamp comprising the same, the installation support is rich in function, and good in product generality, and brings convenience to use by users.

The invention provides an ultrahigh frequency food management label. The ultrahigh frequency food management label comprises a label main body 30 and a ribbon 40, wherein the label main body 30 comprises a label mounting platform 35, an RFID (Radio Frequency Identification Devices) electronic label 31 and a through hole 34; the RFID electronic label 31 is mounted on the label mounting platform 35; the RFID electronic label 31 comprises an antenna 32 and a chip 33 with an RFID function; the ribbon 40 comprises a ribbon head 41 and a ribbon body 42; and the ribbon 40 is separated from the label main body 30.

The invention discloses a modularized joint displacement sensor applied to a robot. Mechanical rotation is converted into voltage signal output so as to provide position and speed feedback to automatic equipment. The modularized joint displacement sensor has the advantages of being capable of bearing large axial and radial loads, being compact in structure, light in weight, small in size, reliable in performance and the like. The modularized joint displacement sensor comprises a shell with an opening at one side, and an output shaft which is fixed at the opening of the shell through a bearing; the bearing comprises a bearing block and a bearing cover; one of the shell and the output shaft is fixed on a frame, and the other one of the shell and the output shaft is fixed on a rotary component; a linear potentiometer is arranged inside the shell; a potentiometer shaft of the linear potentiometer passes through the bearing block and is clamped in the output shaft; and a clearance is formed between the output shaft and the tail end of the potentiometer shaft. Therefore, the potentiometer just bears torque and does not bear the axial or radial load; and the shell or the output shaft fixed on the rotary component drives the potentiometer shaft to rotate so as to convert the rotation of the output shaft or the shell into an electric signal.

The invention discloses a modular circuit board. The circuit board comprises a circuit board main body, wherein two sides of the circuit board body are respectively provided with two symmetrical movable clamping plates, one side, far away from the circuit board main body, of each movable clamping plate is fixedly connected with a mounting plate, positioning blocks are vertically connected with themounting plates, limiting end plates are connected with two ends of the circuit board main body respectively, the limiting end plates and the positioning blocks are connected through positioning rods, and the two mounting plates on the same side of the circuit board main body are connected through an adjusting device. The modular circuit board is advantaged in that the limiting end plates and themovable clamping plates are arranged on the periphery of the circuit board, so the periphery of the modular circuit board can be protected during use, damage to edges of the circuit board due to collision in the use process is prevented, and the movable clamping plates can be moved according to the positions where fixed blocks need to be mounted.

The invention relates to an elevator monitoring device and method based on an Internet of things cloud platform. The elevator monitoring device comprises one or more sensors and a universal terminal of the Internet of things, wherein the sensor is attached to elevator equipment and used for collecting operation state data of the elevator equipment; and the universal terminal of the Internet of things is attached to the elevator equipment and is connected with the sensor to obtain output data of the sensor and forwards the output data to a cloud service platform of the Internet of things through a gateway, wherein the sensor and the universal terminal of the Internet of things do not belong to original equipment of an elevator system. The method comprises the steps of collecting monitoringdata of the sensor attached to the elevator equipment at a regular time or by a triggered action; classifying and processing the monitoring data of the sensor, and analyzing abnormal level conditionsof elevator states associated with the monitoring data; and if the abnormal level is confirmed to reach a fault level, informing the related person for overhauling. According to the device and the method, the state of the elevator equipment can be additionally and intelligently detected, so that actively remind of maintenance is achieved before faults occur, and the device and the method are particularly suitable for detection and modification of old elevators.

The present invention relates to environmental protection field, it's a kind of processing method of micro-processing biochemistry closestool, including closestool shell body, water saving flushing device, sewage cavity, crushing lifter, solid-liquid separator, sludge oxidation processor, intermediate water room, the biologic membrane purifier, sludge room, input electrical source, microcomputer controller and human body induction type of trigger. The cubage of the present invention is cabinet, it is automation, flexible to install, convenient to use, water-saving, economical and environmental protection, so it has high market promoting value.

The invention provides an offshore multi-habitat mobile ship. The offshore multi-habitat mobile ship is a multi-habitat transport ship. The offshore multi-habitat mobile ship comprises an inner body,an outer body, a lifting mechanism, a moving mechanism and a locking guiding mechanism. The lifting mechanism and the locking guiding mechanism are fixed to the outer side of a ship hull by a cantilever support, and the outer body and the lifting mechanism are connected by a manipulation hydraulic device. The outer body and the locking guiding mechanism are connected through pile legs, and the moving mechanism is disposed outside the outer body. The offshore multi-habitat mobile ship solves the problem that an existing transportation device cannot move continuously on land, silt and shoal. Theoffshore multi-habitat mobile ship can be towed in deep water, can move in water and walk to land in low water and silt zones and can move to a designated location on the land, and the offshore multi-habitat mobile ship has the characteristics of high work efficiency, flexible equipment and the like.

The invention relates to a busbar support device and a busbar transmission system using the support device, The busbar support device comprises at least two support layers arranged in order from top to bottom to respectively support the respective busbars, and each support layer is provided with a support structure for supporting the respective busbars, and the support structure has a sliding support surface for supporting the busbars and sliding fit with the busbars for sliding adjustment of the busbars. When the temperature of the busbar changes and thermal expansion and contraction occur orwhen vibration occurs, As that bus bar can be slip on the sliding support surface, the problem that the bus bar can not be released when the bus bar is thermally expand and cold contracted due to thewelding leg outside the bus bar housing in the prior art is avoided, and the support device can simultaneously support the bus bars arranged in more than two layers, so that the support device is flexible in installation and convenient in use.

The invention relates to the technical field of security and protection, in particular to an installation mechanism, a security and protection monitoring device and a security and protection monitoring system. The installation mechanism is used for installing a displacement detection part, and comprises a first shell (1) and a second shell (2), a first cavity (3) is arranged in the first shell (1), the second shell (2) can arranged in the first cavity (3) of the first shell (1) in a sliding mode, and a second cavity used for installing the displacement detection part is arranged in the second shell (2). According to the installation mechanism, the second shell is driven to slide or roll in the first cavity due to slight moving of the first shell, and displacement detection can be achieved after the displacement detection part is disposed in the second shell. Displacement detection can be achieved as long as the installation mechanism is arranged on an independent monitored object, and accordingly the problem that traditional door sensors have to be installed on two opposite and separated positions to achieve displacement detection is solved.

The invention relates to multifunctional processing equipment for substrates. The multifunctional processing equipment comprises a framework, a carrying mechanism, a plurality of processing functional components, frame lifting mechanisms, a plurality of support frames and a plurality of support rods. The widths of comb-shaped carrying forks are matched with the length of a feed station and the sum of the lengths of various processing stations, and the comb-shaped carrying forks are positioned above the various processing functional components. The multifunctional processing equipment has the advantages that each comb-shaped carrying fork only can translate in two directions, and accordingly the rhythm of production and the production efficiency can be improved; lifting can be omitted in carrying procedures, and the substrates cannot be affected by vibration, so that the quality of products can be improved; the problem that comb-shaped carrying fork penetrating notches are required to be formed in existing processing functional components can be solved, and the selectable processing functional components are diversified; sufficient spaces for mounting the support rods and the support frames are available at the edges of the various functional components, accordingly, the edges of the products can be supported, problems of uneven temperatures and the like due to the fact that existing products are supported from the middles of the existing products can be solved, the quality of the products further can be improved, and increasingly fine processing requirements can be met.

The invention discloses a hydraulic speed reducing device. The hydraulic speed reducing device comprises a shell, a first rotating shaft, and a rotor impeller, a stator impeller, a second rotating shaft and a speed adjusting mechanism integrated in the shell; a working cavity is formed between the rotor impeller and the stator impeller; the second rotating shaft is connected with the rotor impeller; the first rotating shaft is connected with the second rotating shaft through the speed adjusting mechanism; one end of the first rotating shaft is connected with an output shaft of a vehicle gearbox, and the opposite end is connected with an input shaft of a vehicle drive axle; or one end of the first rotating shaft is directly connected with the input shaft of the vehicle drive axle. The speedadjusting mechanism is integrated in the shell of the hydraulic speed reducing device to achieve the speed adjusting function; and meanwhile, through change of the mounting mode, the speed adjustingmechanism can be independently mounted on a vehicle girder without improving the structure of the vehicle gearbox to achieve the advantage of flexible installation.

The invention relates to a medical gas connector device. The medical gas connector device comprises a body connected with a medical device, a base connected with the body, an air inlet part connected with the base and an air outlet part arranged in the body. The air inlet part is movably connected to the base. The air inlet part can rotate by 360 degrees at will relative to the base. According to the medical gas connector device, a locking ring is arranged between a connector of the air inlet part and the base, the air inlet part is connected with the base through the locking ring and can rotate by 360 degrees at will relative to the base, installing is flexible, and using is convenient. The functions that ventilation is unavailable when a secondary connector is not connected, and ventilation is immediately conducted when the secondary connector is installed can be effectively achieved by simplifying and optimizing a mechanical structure, opening and closing can be achieved at any time, and the using safety and real-time performance are ensured. Barbs are arranged on an air inlet pipe of the air inlet part and can prevent the air inlet pipe and a hose of an air supply system from disengaging. A clamping ring is arranged at the joint of the air inlet pipe and the connector and can lock the hose of the air supply system, air leakage is prevented, and the air tightness during air inflow is guaranteed.

The embodiment of the invention discloses a long and straight wire current measurement method and system. The method comprises the steps: arranging at least four multi-axis magnetic field sensors in a preset distance range around a wire, calculating the magnetic induction intensity generated by an interference magnetic field according to the magnetic induction intensity measured by the multi-axis magnetic field sensors; and further calculating the magnetic induction intensity generated by the wire current and the distance between the wire and the multi-axis magnetic field sensors, and finally obtaining the current value of the wire. According to the method, the influence of the sensor installation mode on a measurement error is small, the positions of the multi-axis magnetic field sensors do not need to be limited on the same straight line as the projection points of the positions of the multi-axis magnetic field sensors on the cross section plane of the wire are not overlapped, the installation mode is flexible, and by calculating the magnetic induction intensity generated by the interference magnetic field, the influences generated by the interference magnetic field can be clearly removed, a calculation method is simple and convenient, and measurement accuracy is high.

The invention discloses a corrugation removal device for rolling of a battery pole plate. The corrugation removal device comprises a main body installation framework and a pole plate, wherein the mainbody installation framework comprises a side plate A, a side plate B and a bottom plate, the side plate A and the side plate B are respectively arranged at two sides of the bottom plate, a tension roller is arranged at an edge position between the side plate A and the side plate B, an auxiliary roller is arranged between the side plate A and the side plate B and is arranged at a position of the same plane with the tension roller, a floating roller is arranged at a position obliquely above the tension roller between the side plate A and the side plate B, and floating roller swinging arms are arranged at positions, arranged at two ends of the floating rollers, on the side plates A and the side plate B. The corrugation removal device for rolling of the battery pole plate is compact in structure, is flexible to install and can be arranged at a feeding hole or a discharging hole of a rolling machine, rolling and corrugation removal are completed in one time, the process time of the whole production line is not occupied, the production rate is high, the normal production of a subsequence process is ensured, dual-closed loop control is employed, a tension force is stable, the pole plateis uniformly extended, and stable production is achieved.

The invention provides a method and a detection system for diagnosing a potential failure of a pump system. The method comprises the following steps of establishing a healthy motor-pump model by collecting the voltage and current of a motor; training the healthy motor-pump model by using any phase of current and voltage as the input of the healthy motor-pump model and using a fault indicator FDI as the output of the healthy motor-pump model; obtaining a model estimator per unit time through the trained healthy motor-pump model according to the voltage and current values in unit time, obtaininga FDIC value according to the model estimator per unit time and the fault indicator FDI calculated in a measured signal in unit time; determining whether the pump system is faulty according to the FDIC value; and if the pump system is faulty, detecting the phase relationship between the current harmonic components of the motor through a high-order spectrum, and determining whether the motor is faulty. The invention can determine whether the motor or the pump is faulty by analyzing the current and voltage signals of the motor.