30results about How to "Acquisition impact" patented technology

The invention provides a multi-parameter distributed optical fiber sensing system. When the system transmits a detection signal to an optical fiber, an acousto-optic modulator is used to modulate an optical signal generated by a light source into a periodic pulse light. The magnitude of pulses in the periodic pulse light is different. External vibration information is collected when the pulse amplitude is large. When the pulse amplitude is small, the external temperature and strain information are collected. When the external vibration information is collected, the light intensity change of a Rayleigh scattered light generated by the optical fiber is obvious. Non-linear noise introduced by a stokes light generated by the optical fiber can be avoided when the external temperature and strain information are collected. The accuracy of information collection can be improved. A single information acquisition channel can be used to realize distributed multi-parameter acquisition of vibration, temperature and strain. The structure is relatively simple. The production cost of the system can be reduced.

The invention relates to a water quality detection intelligent sampling system based on Internet of Things. The water quality detection intelligent sampling system comprises a sampling frame; a roundhole is formed in the middle of the sampling frame; a lifting device is arranged in the round hole; a sampling device is installed at the lower end of the lifting device; and a control device is installed on the front side of the upper end of the sampling frame. According to the invention, the following problems in the existing water quality detection sampling process can be solved: a when the water quality of rivers and lakes is sampled, aquatic plants such as aquatic plants and the like are easily wound to cause that a sampling tool cannot work smoothly, the aquatic plants in a specified area need to be cleaned in advance before sampling, and when water quality of different depths is sampled, the purity of extracted samples is easily not high due to excessive impurities in the water, sothat the accuracy of a water quality detection result is influenced..

The invention relates to the field of geological survey, and discloses a soil layer survey device and a survey method. The soil layer survey device comprises a fixing frame provided with a driver anda survey structure connected with the fixing frame and driven by the driver. The soil layer survey method comprises the following steps of: determining a survey site and the position of a soil layer to be surveyed, then starting the driver to put down a survey main sleeve, pushing an inclined block to incline and protrude out of the survey main sleeve through a pneumatic push rod by the equipment,and thus, realizing operation of sampling a large number of specific soil layers. In particular implementation, only the survey main sleeve needs to be inserted into a soil layer to be surveyed, gasis then injected into the survey main sleeve, the inclined block inclines and is attached to the soil, the soil sample of the soil layer needing to be surveyed can be swept into the survey main sleeveby rotating the survey main sleeve, the operation is simple and convenient, the sample of a specific soil layer can be taken out without digging out the soil above the soil layer needing to be surveyed, and therefore a large amount of manpower and material resources are saved.

The invention discloses an electric power whole course video visual monitoring system. The invention relates to the technical field of visual monitoring. The system comprises a host control terminal,a main power supply and a power case, a master control CPU, an information compression module, an information storage module, an information comparison module, a time comparison module, a display processing module, an alarm control module and a camera comprehensive processing module are arranged in the host control terminal, and the connecting end of the master control CPU is bidirectionally and electrically connected with the connecting end of the information compression module. According to the invention, information acquired by the monitoring system can be compressed and stored through theinformation storage module and the information compression module; the camera is simple in structure and convenient to find and record information, when the camera is damaged or abnormal, maintenancepersonnel can be prompted through the alarm, so that the maintenance personnel can maintain the camera in time to prevent too long time from influencing collection of information of a monitoring system, and the information recorded by the camera can be displayed through the display screen to facilitate inquiry.

The invention discloses a weighing transportation device, which comprises a top bracket, a middle bracket and a bottom bracket; The connected automatic centering assembly; the automatic centering assembly includes the lower support column fixedly connected with the load cell, the upper support column fixedly connected with the middle bracket and the steel ball between the lower support column and the upper support column; the lower support column is set There are lower accommodation holes for accommodating steel balls, and the upper support column is provided with upper accommodating holes for accommodating steel balls. The steel balls are located in the lower accommodating holes and the upper accommodating holes and freely rotate in the lower accommodating holes and the upper accommodating holes. Its advantage is that the self-aligning component can effectively prevent the shaking of the bottom frame and reduce the error caused by shaking the data collected by the load cell; the driver is located at the center of gravity of the middle bracket, which reduces the impact on the data of the load cell due to the center of gravity being biased to one side collection.

The invention discloses a ceramic body defect detection device and method based on acoustics. The device comprises a base, a support, a mallet (with a ferromagnetic adsorption sheet), an electromagnet, a motor, a computer system and the like. Before electrification, a ceramic body to be detected is placed on the plane where the base is located, the electromagnet is fixed to the support with the adjustable height, and the mallet can freely and repeatedly swing; after electrification, the stepping motor pulls the mallet to rise to a specific height, and one surface of the mallet adsorption sheetis in contact with the electromagnet and is adsorbed; after a power failure, the mallet falls down to knock the ceramic body, and a microphone collects a knocking sound signal. Furthermore, the system forms a fixed-height and timing control and sound wave collection and detection device for knocking porcelain, solves the problems that a nondestructive detection device for ceramic body structure defects is high in cost and knocking sound signals cannot be collected regularly and quantitatively for digital analysis, reduces the experience dependence on operators, and has the advantages of beingsimple to operate and high in objective consistency of detection results.

The invention discloses a data acquisition device for an unmanned aerial vehicle for geological exploration. The data acquisition device comprises a bottom plate, an outer housing fixed on the bottom plate and a soil sampling device. The telescopic soil sampling device is located on one side of the outer housing, a stepping positioning device is arranged in the outer housing, a plurality of soil storage tanks are placed in the stepping positioning device, a conveying hopper connected with the output end of the soil sampling device is fixedly arranged on one side of the top of the outer housing, an overturning driving mechanism for driving the soil sampling device to overturn is arranged on one side of the conveying hopper; and a drilling positioning device is arranged on one side of the top surface of the bottom plate. According to the data acquisition device for the unmanned aerial vehicle for geological exploration, during geological exploration, soil samples in different geological environments can be obtained and stored in a classified mode, it is guaranteed that sample data is sufficient, the analysis result of geological exploration is more accurate, and the working efficiency of the geological exploration data acquisition device for the unmanned aerial vehicle is improved.

The invention discloses an agricultural environment information collection controller which structurally comprises a positioning support column, a triangular support, a rotating handwheel, a slide button, a solar cell panel, a wind speed sensor, a wind direction sensor and a temperature sensor; and the positioning support column is composed of a main body, a driving mechanism, a transmission mechanism, a push mechanism, a positioning mechanism and a telescoping mechanism. According to the controller, the rotating handwheel drives the driving mechanism to work, the driving mechanism drives thetransmission mechanism to further drive the push mechanism to work, the push mechanism transmits a kinetic energy to the positioning mechanism, the positioning mechanism is inserted into soil and doesnot fall off, the triangular support reinforces the positioning support column to support environment information collectors, and the telescoping mechanism is used to improve the accuracy of data collected by the wind speed sensor and the wind direction sensor.

The invention relates to the technical field of medical devices, and further discloses a blood collection device for detecting tumor patients. The device comprises a placing frame, a supporting frameand a bearing frame; a placing groove is formed in the placing frame; a supporting groove is formed in one end, close to the placing frame, of the upper surface of the supporting frame; the bearing frame is arranged above the supporting frame; the supporting frame consists of an arc-shaped plate and mounting rods, wherein the number of the mounting rods is two; the two mounting rods are respectively arranged at two ends of the arc-shaped plate; and the arc-shaped plate is fixedly connected with the support frame through the mounting rods. According to the blood collection device for detectingtumor patients, an arm of a patient subjected to blood sampling passes through a space between two lacing belts; the upper wall of the arm of the patient subjected to blood sampling is placed in the placement groove in the placement frame; meanwhile, the elbow of the patient subjected to blood sampling are placed in the supporting groove, and the forearm of the patient subjected to blood samplingis placed on the arc-shaped plate of the bearing frame, so that the arm of the patient can be naturally relaxed, a situation that blood collection is affected due to tension of the patient during blood sampling is avoided, and the using effect of the device is improved.

The invention discloses a cloud server-based geological parameter monitoring system and a monitoring method thereof, and relates to the technical field of geological parameter monitoring. The system includes a data acquisition unit, a data transmission unit, a data analysis unit, a central processing unit, a timing unit, a database, a cloud storage unit, an intelligent terminal, an alarm unit, anda display unit. The data transmission unit is connected with the data analysis unit through the GPRS network. The system can collect the geological parameters in real time through the data acquisition unit, and perform real-time analysis through the data analysis unit. When an abnormality occurs, the timing unit automatically starts the timing, and when the timing is over, the automatic alarm isactivated; and if it returns to normal before the end of the timing, the alarm is canceled to avoid sudden factors from affecting the data acquisition unit's data collection, thereby ensuring the accuracy of the system. The cloud storage unit stores the geological parameters in real time for future inquiry and grasps the geological information at any time through the intelligent terminal.

The invention belongs to the field of environmental protection equipment, and particularly relates to manufacturing and usage methods of a membrane taking device for a TSP (Total Suspended Particulates) collector with PM5 and PM2.5 sampling heads. The membrane taking device is mainly composed of an annular filter membrane support plate and two tweezers ears integrated with the annular filter membrane support plate, wherein the shape and size of the annular filter support plate coincide with the shape and size of the bottom plane of an annular groove of the TSP collector with the PM5 and PM2.5sampling heads; the annular filter support plate is made of a film with the thickness of 0.2 to 0.4 mm; the two tweezers ears are extension parts of the annular filter support plate, and are symmetrically arranged on the outer-circle arc edge of the annular filter membrane support plate. By using the device, a filter membrane can be taken conveniently and completely from the annular groove of theTSP collector, an annular filter membrane is prevented from breaking in a membrane taking process, and the accuracy of sampling data is ensured.

The invention discloses a consumer palmprint recognition system based on big data technology, and the system is characterized in that the system comprises a memory, a palmprint collection device and a processor, the memory, the palmprint collection device and the processor are electrically connected, the processor is electrically connected with a power supply, and the interior of a housing is provided with a cleaning device; the system also comprises a disinfection device. The invention relates to the technical field of palmprint recognition. The consumer palmprint recognition system based on the big data technology achieves the purpose of cleaning the palmprint collection device before use, can prevent pollutants on the surface of the device from causing secondary pollution to the palm of a consumer in the palmprint collection process, can disinfect the palm of the consumer in the use process. The use safety degree of the device is improved, the palm of a consumer can be cleaned, it is avoided that contaminants on the surface of the palm of the consumer reduce the palm print collection accuracy degree, and the invention has the capacity of drying water stains on the surface of the palm of the consumer.

The invention relates to a high-pressure heater hydrophobic liquid level control auxiliary device, comprising: a high-pressure heater, a water pipe is arranged on the outer wall of the high-pressure heater, and an installation part is arranged on the inner wall of the high-pressure heater, and the installation part includes a first installation part and a second installation part. The installation part, the first installation part is connected with the water pipe; and the floating plate, the floating plate is arranged inside the high-pressure heater, and the two sides of the floating plate are respectively provided with a first matching part and a second matching part, and the first matching part and the first The installation part is matched, and the second fitting part is slidingly connected with the second installation part; a cavity is provided in the floating plate, and the cavity is connected with the water pipe; the top of the floating plate is provided with more than one water hole, and the water hole is connected with the cavity connected. The beneficial effect is that the device can make the water level in the high-pressure heater more stable and the measured data more accurate.

The invention discloses a main body and an electronic atomization device. The main body is used in cooperation with an atomizer provided with an identification pattern. The main body comprises an optical sensor and a control circuit which are electrically connected. The optical sensor is used for identifying the identification pattern of the atomizer to obtain identification information when the main body is matched with the atomizer. The control module is used for controlling the atomizer according to the identification information. The optical sensor comprises a lens used for collecting an image of the identification pattern and a light-transmitting piece located in the collecting direction of the lens, and when the main body is matched with the atomizer, the identification pattern of the atomizer is located on the side, away from the lens, of the light-transmitting piece and located in the collecting direction. By means of the mode, the atomizer can be recognized at low cost, and dust can be effectively prevented from entering the lens.

The invention discloses a four-rotor aircraft stability augmentation system and a four-rotor aircraft stability augmentation method based on multiple images. Three controllable cameras are mounted on the aircraft and are distributed on three coordinate axes of the aircraft, so that multi-direction image acquiring is realized; multiple images which are taken, at certain moment, by all cameras are taken as a reference image, a frame image, which is obtained within each shooting period after three selected areas are selected on fixed coordinate positions in each image by virtue of image processing, is compared with a target specified in the reference image; and coordinate positions of the target in each frame are compared and analyzed to obtain posture changes and position changes of the aircraft, so that stability augmentation of the aircraft is realized by virtue of gesture feedback and position feedback. According to the four-rotor aircraft stability augmentation system and the four-rotor aircraft stability augmentation method based on multiple images, keeping of a permanent position, in farmland regional operation, of the aircraft can be realized, and spraying precision and reliability of pesticides are improved.

The invention relates to the technical field of medical devices, and further discloses a blood collection device for detecting tumor patients. The device comprises a placing frame, a supporting frameand a bearing frame; a placing groove is formed in the placing frame; a supporting groove is formed in one end, close to the placing frame, of the upper surface of the supporting frame; the bearing frame is arranged above the supporting frame; the supporting frame consists of an arc-shaped plate and mounting rods, wherein the number of the mounting rods is two; the two mounting rods are respectively arranged at two ends of the arc-shaped plate; and the arc-shaped plate is fixedly connected with the support frame through the mounting rods. According to the blood collection device for detectingtumor patients, an arm of a patient subjected to blood sampling passes through a space between two lacing belts; the upper wall of the arm of the patient subjected to blood sampling is placed in the placement groove in the placement frame; meanwhile, the elbow of the patient subjected to blood sampling are placed in the supporting groove, and the forearm of the patient subjected to blood samplingis placed on the arc-shaped plate of the bearing frame, so that the arm of the patient can be naturally relaxed, a situation that blood collection is affected due to tension of the patient during blood sampling is avoided, and the using effect of the device is improved.

The invention discloses an unpowered equipment mileage frequency calculation method and system based on driving domain feature points, and the method comprises the steps: calculating the driving mileage and working frequency of unpowered equipment through collecting the passing information of the unpowered equipment passing road feature points or feature regions, and taking the calculated mileage and working frequency as a reference basis for equipment maintenance based on a use load; namely, the passing information of each device can be collected at the same time only by arranging the collection devices at the feature points, and positioning systems such as GNSS and the like and long-distance communication systems do not need to be independently arranged on each motion device, so that the cost is reduced; the passing information is acquired by taking the real telecontrol state of the unpowered equipment as the standard, so that the accuracy of the equipment maintenance reference basis is improved, and the acquisition of the passing information of the unpowered equipment is not influenced under the condition that the traction equipment is frequently replaced; and traction equipment can be replaced at will.

The invention discloses a real-time remote pulse feeling equipment system. The real-time remote pulse feeling equipment system comprises a pulse feeling box; a wrist placing opening is formed in the front face of the pulse feeling box; a detection mechanism is fixedly installed in the pulse feeling box; an information display screen is fixedly installed at the upper end of the front face of the pulse feeling box; operation keys are fixedly installed on the front face of the pulse feeling box; and an anti-skid pad is fixedly mounted at the lower end of the pulse feeling box. when pulse feeling needs to be performed on a patient, a central control unit generates a case report from pulse condition information through a report processing module; the central control unit is connected with mobile equipment through transmission modes such as a Bluetooth module, an infrared module and an NEC module; the mobile device is connected with the patient client, or a WIFI module is connected with the Ethernet, and the Ethernet is connected with the patient client, and the report is transmitted to a server through the patient client, so that a doctor can conveniently extract the pathological report in the server through a doctor client to remotely diagnose the patient to know a pathologic condition and suit the remedy to the case.

The invention provides a multi-parameter distributed optical fiber sensing system. When the system transmits the detection signal to the optical fiber, it first uses an acousto-optic modulator to modulate the optical signal generated by the light source into periodic pulsed light, and makes the periodic pulse The amplitude of the pulse in the light is different. The external vibration information is collected when the pulse amplitude is large, and the external temperature and strain information are collected when the pulse amplitude is small. The light intensity of the Rayleigh scattered light changes more obviously, and it can avoid the Stokes light generated by the optical fiber from introducing nonlinear noise when collecting the external temperature and strain information, thereby improving the accuracy of information collection; using a single The information acquisition channel can realize the distributed multi-parameter acquisition of vibration, temperature and strain, the structure is relatively simple, and the system production cost can be reduced.

The invention relates to the technical field of surveying and mapping unmanned aerial vehicles, and discloses a multifunctional surveying and mapping unmanned aerial vehicle for surveying and mapping geographic information. The multifunctional surveying and mapping unmanned aerial vehicle comprises a rack and a main machine body, and the rack is rotationally provided with multiple sets of wings in transmission connection with the main machine body; a plurality of groups of cover plates opposite to the wings are assembled on the upper cover in a sliding manner, a driving mechanism used for driving the cover plates to move relative to the wings is mounted in the upper cover, and an anemograph is assembled and connected on the driving mechanism; when the driving mechanism drives the cover plate to move towards the wings, the driving mechanism synchronously drives the anemograph to move in the direction away from the upper cover. Equipment for surveying and mapping can be effectively protected, the cover plate can be moved from the upper cover to the wing by starting the driving mechanism, the cover plate covers the wing, the driving mechanism can drive the anemograph to move upwards from the upper cover, the influence of the wing on information acquisition can be avoided by utilizing the cover plate, and the information acquisition is more accurate.

The invention discloses a beam tube sampling head protection device, which comprises a beam tube, a horizontal tube section and a vertical tube section, the horizontal tube section and the vertical tube section are communicated with each other, the beam tube penetrates into the vertical tube section from one end of the horizontal tube section, the beam tube is sleeved with a supporting framework used for keeping the beam tube unblocked, and a dustproof ventilation sleeve is detachably arranged at the tail end of the vertical tube section. According to the beam tube sampling head protection device disclosed by the invention, by arranging the beam tube sampling head in a three-way joint form, accumulated water is prevented from being sucked in the collection process, and meanwhile, by arranging the dustproof ventilation sleeve, large-particle impurities are prevented from entering the beam tube; moreover, a spring is arranged in the three-way connector structure to serve as a framework for supporting the beam tube, so that the bending radius of the beam tube is effectively kept, and the beam tube is prevented from being excessively bent and folded to be blocked to influence gas collection.

The invention relates to the technical field of wind power generation, in particular to a multi-directional microminiature piezoelectric wind energy collector which comprises a collecting body and a collecting body installed at the top of the collecting body, the collecting body comprises a base plate, a middle cylinder is arranged at the top of the base plate, a low rod is arranged in the middle of the bottom in the middle cylinder, and a piezoelectric module is fixed to the top of the low rod. A battery is arranged at the bottom in the middle cylinder, the piezoelectric module is electrically connected with the battery through a wire, a partition plate is arranged above the battery in the middle cylinder, a shaft groove is formed in the middle of the partition plate, the collecting body comprises a top cylinder located at the top of the middle cylinder, a through groove is formed in the top cylinder and is a groove of a partial inverted cone structure, and a top body is connected into the through groove through a support. The top body is of an inverted cone structure, the shaft groove is rotationally connected with an intermediate shaft, the intermediate shaft is symmetrically provided with a plurality of fan blades, and the bottom of the intermediate shaft is in threaded connection with a pressing rod. The device has the advantages that by arranging the piezoelectric module, collected wind energy is converted into electric energy to be stored.

The invention belongs to the technical field of unmanned aerial vehicles, particularly relates to an unmanned aerial vehicle for water sample collection, and provides the following scheme for solving the problems in the prior art: the unmanned aerial vehicle comprises a machine shell, wings are arranged at four corners of the machine shell, a controller is arranged in the machine shell, a rack is arranged on the outer wall of the bottom of the machine shell, and a collection barrel is arranged below the machine shell; the bottom face of the collection barrel is of a spherical surface structure, a middle barrel is fixedly connected to the inner wall of the bottom of the collection barrel, at least six annularly and evenly distributed partition plates are fixedly connected between the outer wall of the side face of the middle barrel and the inner wall of the side face of the collection barrel, and a collection cavity is reserved between every two partition plates. A middle shell penetrating through the machine shell is arranged on the inner wall of the side face, located on the middle cylinder, of the machine shell, and a pressure lifting mechanism is arranged in the middle shell. The unmanned aerial vehicle prevents impurities such as duckweed on the water surface from influencing water sample collection, can ensure that no large impurities exist in the collected water sample, and facilitates subsequent cleaning.

The invention relates to a dewatering liquid level control auxiliary device of a high-pressure heater. The dewatering liquid level control auxiliary device comprises the high-pressure heater and a floating plate, wherein a water introducing tube is arranged on the outer wall of the high-pressure heater; a mounting part is arranged on the inner wall of the high-pressure heater; the mounting part comprises a first mounting part and a second mounting part; the first mounting part is connected with the water introducing tube; the floating plate is arranged inside the high-pressure heater; the twosides of the floating plate are separately equipped with a first matched part and a second matched part; the first matched part is matched with the first mounting part; the second matched part is in sliding connection to the second mounting part; a cavity is arranged in the floating plate; the cavity communicates with the water introducing tube; and more than one water introducing hole is formed in the top of the floating plate, and the water introducing hole communicates with the cavity. The dewatering liquid level control auxiliary device enables water level in the high-pressure heater to bemore stable, so that measured data are more accurate.

The invention provides an outdoor isolated point video acquisition device with a solar power supply function. The outdoor isolated point video acquisition device with the solar power supply function comprises a placement plate; the bottoms of the two supporting plates are fixed on the placing plate; the bottom of the mounting box is fixed on the placing plate; and the acquisition camera is arranged at the top of the mounting box. According to the outdoor isolated point video acquisition device with the solar power supply function, an acquisition camera on the video acquisition device can be mounted and dismounted, when the acquisition camera is damaged, a pull ring is pulled to drive a clamping block on a sliding plate to be separated from a clamping groove, and then dismounting is completed; and after replacement and maintenance, the acquisition camera is quickly mounted, so that the influence on video acquisition due to too long delay time is avoided, and the practicability of the device is further embodied.

The invention discloses gas detection equipment based on Internet of Things information identification, and belongs to the field of gas detection. The gas detection equipment comprises a bearing table, a detection mechanism for collecting gas for detection and a telescopic mechanism for adjusting the height of the detection mechanism are mounted on the bearing table, the telescopic mechanism is fixedly mounted on the bearing table, and the detection mechanism is mounted at the upper end of the telescopic mechanism; and the telescopic mechanism comprises an air pressure type telescopic rod communicating with the detection mechanism, and the detection mechanism exhausts detected air into the air pressure type telescopic rod to drive the air pressure type telescopic rod to extend so as to adjust the height. The height of the detection mechanism can be automatically adjusted, a large amount of gas at different height positions can be sampled and detected, and the detection accuracy is improved; and the gas is not discharged after being detected, so that the situation that the detection result is influenced by the flowing of the gas around an exhaust port caused by the discharged gas is avoided, and the detection accuracy is improved.

The invention relates to the technical field of water intaking, in particular to a portable non-disturbance water intaking device and a water intaking method thereof. The portable non-disturbance water intaking device comprises an air bag, a telescopic rod, an inflating device, a four-way joint and a water intaking pipe; the air bag is provided with a vertically-through penetrating hole, the bottom end of the telescopic rod penetrates through the penetrating hole of the air bag, and the top end of the telescopic pipe is communicated with the bottom end of the four-way joint; the output end of the inflating device is provided with a first air supply pipe and a second air supply pipe, the output end of the first air supply pipe is communicated with the left end of the four-way joint, the output end of the second air supply pipe is communicated with the air bag, and the first air supply pipe and the second air supply pipe are each provided with a switch valve; and the bottom end of the water intaking pipe sequentially penetrates through the four-way joint and the telescopic pipe from the top end of the four-way joint, an exhaust pipe is arranged at the right end of the four-way joint, and an exhaust valve is arranged at the exhaust pipe. When the water intaking device is used for taking water, the water intaking device can adapt to a complex in-well environment, disturbance to a water sample is reduced, and particularly, the loss of organic matters in a volatile organic water sample collection process can be effectively avoided, and therefore the accuracy of detection data is ensured.

The invention relates to the field of finger vein image acquisition, and discloses a miniature portable finger vein real-time image acquisition and recognition device, which includes a housing and a finger vein image acquisition authentication component for acquiring finger vein images and performing finger vein image recognition; The finger sensing component is used to detect the presence of a finger and output a control signal to the finger vein image acquisition authentication component; the prompt component is used to receive the control signal and output a prompt signal. The invention has the effect of improving the accuracy of image acquisition.

The invention discloses a large-scale high-cleanness fan direct-current motor data acquisition gateway which comprises a data acquisition gateway body and a cover plate, a plurality of access ports are formed in the data acquisition gateway body, two fixing boxes are fixedly connected to the data acquisition gateway body, and two mounting plates are fixedly connected to one side of the cover plate. And one side of the mounting plate penetrates through the fixing box and extends into the fixing box, and a magnet block is slidably connected between the two sides of the interior of the fixing box. The invention discloses a large-scale high-cleanness fan direct-current motor data acquisition gateway, which is characterized in that a fixed box is arranged on the data acquisition gateway, then acover plate is arranged, and idle access ports are subjected to dust prevention, so, the situation that a large amount of dust enters the gateway due to long-time exposure in an external environment,and accordingly in the next time usage, poor contact between the access port and an external transmission line joint is easy to occur, so that data acquisition is influenced is avoided.