45results about How to "Easy to view data" patented technology

The invention discloses a multifunctional cardiovascular medicine department monitoring device which comprises a table plate. Vertical support plates are fixedly installed on both sides of the bottomsurface of the table plate, a transverse plate is arranged on one side of the top surface of the table plate, and a circular groove is formed in one side of the top surface of the table plate. A plurality of sliding rods are fixedly installed on the bottom surface of the transverse plate, and the lower ends of the sliding rods are located in the circular groove and can slide along the circular groove. A through hole is formed in the bottom surface of one side of the table plate, the through hole communicates with the interior of the circular groove, a vertical rod is arranged in the through hole, and the upper end of the vertical rod is fixedly connected with the bottom surface of the transverse plate. A vertical fixed plate is fixedly installed on the bottom surface of the table plate, and guide sleeves are fixedly installed at the front and rear ends of one side of the vertical fixed plate. A rack penetrates through the interiors of the two guide sleeves, the rack can move along theguide sleeves, a gear is arranged on one side of the rack, and the gear meshes with the rack. According to the multifunctional cardiovascular medicine department monitoring device, a placement grooveof an oxygen mask can be opened while an electrocardiograph monitoring device is adjusted well, one-step-in-place is achieved, the operation is simple, and the time of treating patients is saved.

The invention relates to a vehicle-mounted RFID environment monitoring system and method. The vehicle-mounted RFID environment monitoring system comprises an RFID reader (1), an intelligent mobile terminal (2), environment monitoring sensors (2) and RFID labels (4); the RFID reader (1) and the intelligent terminal (2) are arranged inside a mobile monitoring vehicle; the RFID reader (1) is connected to the intelligent mobile terminal (2); the quantities of the environment monitoring sensors (3) and the EFID labels (4) are more than one; the environment monitoring sensors (3) and the RFID labels (4) are connected in one-to-one correspondence and distributed at various environment monitoring points; when the mobile monitoring vehicle moves, the RFID reader (1) is automatically connected to the RFID label (4) within a recognition range of the RFID reader (1), obtains position data and environment data in the RFID label (4) and transmits the position data and the environment data to the intelligent mobile terminal (2) in real time. Compared with the prior art, the vehicle-mounted RFID environment monitoring system is concise in system architecture, easy in operation, reliable in data transmission and low in total cost and can realize instant collection and display.

The invention provides a management method, system and device for a private parking space. The method comprises the following steps that: receiving parking space occupation request information sent from a request terminal, and sending the parking space occupation request information to an appointed terminal; when the feedback of the appointed terminal that parking information is allowed is received, closing parking lock equipment installed on the parking space so as to bring convenience to a rental car in being driven into the parking space; detecting whether the car is driven into the parkingspace or not, and if the car is driven into the parking space, beginning to time, and starting the parking lock equipment; when leaving information sent from the request terminal is received, according to timing duration and preset unit price, carrying out calculation to obtain parking fees, carrying out settlement, and closing the parking lock equipment after settlement is finished; and detecting whether the rental car leaves the parking space or not, and if the rental car leaves the parking space, starting the parking lock equipment. When the permission of the appointed terminal is obtained, the rental car which is driven into the parking space is automatically subjected charging management, after the fee is settled, the parking lock equipment is controlled to enable the rental car to leave the parking space, and the private parking space can be favorably managed after a car owner leaves the private parking space.

The invention relates to an intelligent distributed air disinfection purification system. The intelligent distributed air disinfection purification system comprises a terminal air disinfection machineand an intelligent cloud background, wherein the terminal air disinfection machine is deployed in a public indoor place and communicates with the intelligent cloud background through a wireless communication module, the intelligent cloud background comprises an intelligent strategy subsystem, an AI intelligent learning subsystem, a deployment maintenance subsystem, a data visualization subsystemand a user permission subsystem, the intelligent strategy subsystem comprises an intelligent strategy module based on attribute characteristics, an intelligent strategy module based on indoor air quality, an intelligent strategy module based on outdoor air quality, an intelligent strategy module based on human body induction, an intelligent strategy module based on time and an intelligent strategymodule based on light induction. According to the intelligent distributed air disinfection purification system, centralized intelligent management of multiple air disinfection machines in the publicindoor place can be realized.

The invention discloses an intelligent water meter, which comprises a lower box, an upper cover, an IC jack and a liquid crystal circuit board, wherein the upper cover is mainly used for covering and protecting the upper surface of the lower box; the upper cover is connected with the lower box in a rotating way; and a rotating axis is vertical to the upper surface of the lower box. The intelligent water meter of the invention can make the upper cover horizontally rotate in parallel with the upper surface of the lower box, occupies a small space, is convenient to use, maintain and detect, particularly convenient to view data and insert a card, is favorable for preventing a foreign material from entering the IC jack and separating a mechanical part from an electric appliance part, and expands the space for the further development of the water meter.

The invention relates to a flowmeter with a protective structure. The flowmeter comprises a fluid pipeline, a flowmeter body arranged on the fluid pipeline and a protective cover arranged outside the flowmeter body, the protective cover is detachably connected with the flowmeter body, an observation window is formed in the surface of the protective cover, and an observation plate is arranged at the position, located on the observation window, of the protective cover. The top of the protective cover is fixedly connected with an air supply cavity, the air supply cavity is communicated with an air outlet assembly, the air supply cavity extends out of the front side of the protective cover and extends outwards to form an extending part, the bottom face of the extending part is provided with an air outlet slope, the surface of the air outlet slope is provided with air outlet holes, and the air outlet holes face the observation window. The protective cover is arranged outside the flowmeter body, the flowmeter is protected, faults caused by the fact that an external object collides with the flow meter are avoided, the waterproof and dustproof effects are good, workers can check data conveniently through the observation window, in addition, the air outlet holes blow air to the surface of the observation window, and reading is prevented from being affected by dust falling on the observation plate.

The invention relates to a swinging ball experiment demonstration device, and especially relates to a swinging ball experiment demonstration device for a classroom experiment. A technical problem to be solved is to provide the swinging ball experiment demonstration device for the classroom experiment. In order to solve the above problem, the invention provides the swinging ball experiment demonstration device for the classroom experiment. The device comprises a demonstration box, a first stay wire, a swinging ball, a placement box, and a display board. The top of the interior of the demonstration box is connected with the first stay wire, and the bottom end of the first stay wire is connected with the swinging ball. The internal bottom of the demonstration box is provided with a placement box, and the placement box is located below the swinging ball. The center of the top of the placement box is provided with an opening, and the internal bottom of the placement box is connected with a lifting deice. The upper end of the lifting device is connected with a rotating device, and the upper end of the rotating device is connected with the display board. Through the linkage of the lifting device and the rotating device, the device completes the demonstration of the classroom experiment, can demonstrate a swinging ball experiment, and also brings convenience to a teacher for the classroom teaching.

The invention discloses an intelligent management system for medical equipment. The system comprises a server, a cloud database, a storage module, a display module, an emergency alarm module, a working time management module, a fault information emergency module, a control module, a sensor detection module, an operation training module, a synchronous viewing module, an equipment module, a maintenance personnel information module, an environment information detection module, an equipment automatic adjustment module and an income and expenditure module. The server is connected with the cloud database, the storage module, the display module, the emergency alarm module, the working time management module, the fault information emergency module, the control module, the sensor detection module,the operation training module, the synchronous viewing module, the equipment module, the maintenance personnel information module, the environment information detection module and the equipment automatic adjustment module through cables and a network. The medical equipment intelligent management system has the advantages of working based on big data, hierarchical control, automatic fault adjustment in the working process and fault emergency.

The invention discloses a riverway water flow velocity monitoring device. The device comprises a measuring rod, a fixing device and a triangular baffle; a signal converter is arranged at the upper endof the measuring rod; a wire is arranged at one side of the signal converter; a counter is arranged at the lower end of the wire; a water temperature measuring device is arranged above the fixing device; a sonar is arranged on the outer surface of the measuring rod; a rotating device is arranged to one side of a signal transmitter; and a tail wing is arranged at one side of the fixing device. Theriverway water flow velocity monitoring device of the invention is provided with an anti-scratching film, the triangular baffle and the water temperature measuring device; and therefore, the surfaceof a display screen can be prevented from be scratched after being used for a long time, and therefore, the definition of the display screen is protected; the impact force of water flow on the measuring rod can be reduced, the measuring rod is effectively protected, and the service life of the measuring rod is greatly prolonged; and therefore, the riverway water flow velocity monitoring device iseconomically efficient and practical, can measure the water temperature of a water area, and has a bright use prospect.

The invention relates to the technical field of medical device, in particularly relates to a clinical fetal heart detector in gynecological and obstetrics, which comprises a first housing, a display screen, a processor, a wireless transmission module, a second housing, a seal cushion, a tiny fan, a detection end, a vent hole, a first connection belt, a fastener, a box body, a shaft, a knob, a fixed coil and a second connection belt. In the process of using, the display screen is capable of displaying the heart rate of a fetus. Moreover, the wireless transmission module is capable of transmitting the data measured by the detection end to an intelligent device connected with the clinical fetal heart detector in gynecological and obstetrics via wi-fi, and then nurses or the family members ofthe pregnant women at remote place are convenient to view the data; furthermore, based on the design of the connection belt of the clinical fetal heart detector in gynecological and obstetrics, the device is convenient to fix on the abdominal of pregnant women, and the connection belt can be adjusted freely via the shaft which brings convenience to pregnant women; moreover, the design of fan withthe vent hole guarantees the ventilation of the skin of pregnant women contacting the detection end, and the blood circulation of the surroundings is accelerated.

The invention discloses a degassing kettle for the production of chlorinated paraffin. A liner is arranged on the inner surface of a shell, a temperature control device is arranged at the bottom end of the liner, a stirrer is arranged above the temperature control device, a coupling is arranged at the upper end of the stirrer, a gas purification layer is arranged above the coupling, a silencer isarranged at one end of the shell, a discharge port is formed in the other end of the shell, a temperature display device is arranged above the silencer, a manual air extraction valve is arranged abovethe discharge port, and a shock absorption cushion layer is arranged at the bottom end of the shell. The degassing kettle is simple in structure, scratches can be prevented from producing on the surface of the temperature display device after long-term use, the clarity of the temperature display device is protected, the internal temperature can be further controlled, so that the chlorinated paraffin does not change due to temperature, in addition, when internal gas is not fully discharged, gas of the degassing kettle can be manually extracted, and the discharged gas can be purified.

The invention discloses an online grid type itinerant detection system for gas components at an SCR outlet. According to the scheme, the system comprises a sampling device, a blowback device, a switching control device, an analysis device and an upper computer, the through-flow cross section of a flue gas channel is averagely divided into M*N detection areas with the same area, and the sampling device comprises M*N probes arranged in the centers of the detection areas; the blowback device comprises an air compression pump, a compressed air tank and a blowback spray head; and an air outlet pipeof the blowback spray head is arranged towards a dustproof filter screen connected to a sampling pipe of the probe. The probes are uniformly distributed in the through-flow cross section of the fluegas channel, the sampled gas is sequentially conveyed into the analysis device through the switching control device according to a preset sequence, the NO concentration and the O2 concentration in thesampled gas are detected so as to improve the measurement accuracy, and the dustproof filter screen is periodically cleaned by arranging the blowback device, so that the reliability and the stabilityof gas detection are further improved.

The invention discloses a recirculating blower and carbon dioxide supply integrated device for seedling culture, comprising a blower drum and vanes; connecting rods are arranged at the lower end of the blower drum, a carbon dioxide generating box is arranged at one ends of the connecting rods, a motor bracket is fixedly mounted inside the blower drum, a motor is fixedly mounted at the upper end ofthe motor bracket and is movably connected with the vanes, and a display screen is fixedly mounted on the outer surface of the carbon dioxide generating box. As the recirculating blower and carbon dioxide supply integrated device for seedling culture is provided with a scratch protective layer, the carbon dioxide generating box and a carbon dioxide concentration detector, the surface of the display screen can be prevented from being scratched after long-term use, definition of the display screen can be protected, carbon dioxide can be generated directly, concentration of carbon dioxide in a seedling culture chamber can be detected for automatic regulation in time; thus, the recirculating blower and carbon dioxide supply integrated device for seedling culture is adaptable to different working conditions and has a good application prospect.

The invention relates to a power line discharge detection system for unmanned aerial vehicle line patrol. The system comprises an unmanned aerial vehicle airborne discharge detection system and a computer operation display system. The unmanned aerial vehicle airborne detection system is used for rapid discharge detection of a power transmission line and local recording of data; the computer operation display system performs reading, analysis operation, data storage and visual display on the recorded data. The power line discharge detection method comprises the following steps that: a photomultiplier in an ultraviolet detection module performs swing detection; when the power transmission line discharges, multiple groups of signals can be detected in one swing period; and when the detectionsignal intensity is maximum in one swing period, the current swing angle of a turntable, the detection position obtained by a position information acquisition module and the voltage of the detection signal are recorded in a data recording module. The power line discharge positioning method comprises the following steps: importing data in the data recording module into the computer operation display system for positioning operation, and outputting successfully located discharge point position information. The system and methods have the characteristics of high detection speed, low omission ratio, accurate positioning and high inspection efficiency.

The invention discloses an intelligent breeding house for deer species. The intelligent breeding house comprises a breeding house structure part, a detection device, and an extinguishing device. The breeding house structure part is formed by a ceiling a cross beam, walls, and breeding house units. The detection device consists of a temperature sensor, a humidity sensor, spraying heads, fixed columns, and sound sensors. The extinguishing device includes a reservoir, a controller, a connecting line, a connecting pipe, a fixed shell, a touch display screen, a printed circuit board, a microprocessor, a 4G communication module and an actuator. With the sound sensors, fire monitoring inside the breeding house is realized; because the spraying heads are distributed on the upper end of the cross beam at equal intervals, the fire occurring in the breeding house can be extinguished well; the reservoir is used for storing carbon dioxide for long time, so that the carbon dioxide can be used convenient when in demand; and then with the 4G communication module, data transmission is realized, so that the worker can check data inside the breeding house conveniently by using other mobile devices.

The invention discloses an intelligent water meter, which comprises a lower box, an upper cover, an IC jack and a liquid crystal circuit board, wherein the upper cover is mainly used for covering and protecting the upper surface of the lower box; the upper cover is connected with the lower box in a rotating way; and a rotating axis is vertical to the upper surface of the lower box. The intelligent water meter of the invention can make the upper cover horizontally rotate in parallel with the upper surface of the lower box, occupies a small space, is convenient to use, maintain and detect, particularly convenient to view data and insert a card, is favorable for preventing a foreign material from entering the IC jack and separating a mechanical part from an electric appliance part, and expands the space for the further development of the water meter.

The invention provides an energy-saving and environment-friendly information collection device for construction site noise detection, and the device comprises a fixed column, a box body is fixedly installed at the top of the fixed column, a display screen is fixedly installed at the right side of the box body, a moving block is fixedly installed at the right side of the top of the display screen,and a sliding rail is fixedly installed at the bottom of the moving block. According to the energy-saving and environment-friendly information collection device for construction site noise detection,through arrangement of the ball and the light emitting diode, the vibration amplitude generated by the vibration block is different through noise of different degrees so that the vibration amplitude of the ball is different, and then through contact between the ball and the trigger rod during falling, the first electric shock point and the second electric shock point are connected, the light-emitting diode emits light, the collected data are transmitted and stored in the controller through the wire, so that the display screen displays the noise level in time while workers can check the data conveniently, and the workers and nearby residents can check the data conveniently.

The invention relates to an intelligent distributed air disinfection and purification system, including a terminal air disinfection machine and an intelligent cloud background; the terminal air disinfection machine is deployed in a public indoor place, and communicates with the intelligent cloud background through a wireless communication module; The intelligent cloud background includes an intelligent policy subsystem, an AI intelligent learning subsystem, a deployment maintenance subsystem, a data visualization subsystem, and a user authority subsystem; the intelligent policy subsystem includes an intelligent policy module based on attribute characteristics, an indoor air quality based Smart strategy module based on outdoor air quality, smart strategy module based on human body sensing, smart strategy module based on time, smart strategy module based on light sensing. The invention can realize the centralized intelligent management of multiple air sterilizers in public indoor places.

The invention provides a multi-screen display device facilitating data viewing, and belongs to the technical field of display devices.The multi-screen display device facilitating data viewing comprises a base, a main display screen arranged above the base and auxiliary display screens located on the two sides of the main display screen; the base is provided with a sliding assembly for driving the two auxiliary display screens to slide to the rear portion of the main display screen, the main display screen is provided with a guiding assembly for guiding the sliding tracks of the auxiliary display screens, and the base is provided with a reciprocating assembly for driving the sliding assembly to slide in a reciprocating mode. According to the multi-screen display device facilitating data viewing, one auxiliary display screen can be unfolded, the number of the display screens needing to be used can be adjusted, the display screens not needing to be used are folded behind the main display screen, and the problem that the display screens are prone to being damaged due to long-term exposure can be effectively solved.

The invention discloses a high-efficiency and high-precision flow detection device for nozzles. Aiming at the problems that inconvenience exists in disassembly and assembly of flow valves and pipelines fixed by bolts and no protection measures are adopted for flow valves in the prior art, and the following technical scheme is proposed. The device includes a detection device body, the bottom of thedetection device body is welded with a plugged tube, the two sides of the plugged tube are welded with fixation plates horizontally arranged, the sides, away from the plugged tube, of the tops of thefixation plates are welded with limit blocks, the outsides of the fixation plates are movably sleeved with movable plates, the movable plates are internally and movably sleeved with guide tubes, theends, close to each other, of the two guide tubes are fixedly connected with installation tubes, the bottoms of the installation tubes are rotatably connected with screw rods, and outer rings of the screw rods are sleeved with connection blocks through threads. The design is novel, operation is simple, the detection device body is convenient to disassemble and install, meanwhile the detection device body can be protected, and the safety of the device is improved.

The invention discloses an Internet of Things big data management method for an industrial park. The method comprises the following work operation processes: 1, establishment of a park integrated management module; 2, dividing a park integrated management module; 3, carrying out installation and experiments of related equipment according to the drawing, and ensuring normal operation of the equipment; and 4, performing permission division according to the management hierarchy. According to the method, the flow of creating the data index database is set, after authority verification, warehouse management personnel with the authority can input warehouse-in and warehouse-out update data of the warehouse, when verification is passed, the input warehouse-in and warehouse-out data can be transmitted to the index update data set for subsequent processing; and if errors occur in the data input process, the data is input wrongly, so that the verification operation cannot be passed, at the moment, the verification module can return the input data to the step of data input, the input mistakes are displayed, input personnel are reminded to correct the input data, and the correctness of updated data is ensured.

The invention relates to the technical field of data analysis, and discloses a project enterprise economic contribution degree analysis device and a use method thereof.The project enterprise economic contribution degree analysis device comprises a display screen, protection frames are fixedly installed on the two sides of the display screen, a storage box is fixedly connected to the surface of the protection frame on the left side, and a controller is placed in the storage box; and the top of the display screen is fixedly connected with a screen cleaning mechanism. According to the project enterprise economic contribution degree analysis device, by arranging the screen cleaning mechanism, the cleaning effect on a display screen can be achieved, dust attached to the display screen can be wiped off, the surface of the display screen is cleaner, a viewer can see data more clearly, analysis is facilitated, the practicability of the device is enhanced, and the device is worthy of popularization and application. And through the coordination of the metal ball and the limiting hole, the height of the display screen can be conveniently adjusted, the display screen can be conveniently adjusted to a proper height in different occasions, and data can be conveniently watched.

The invention provides a rebound property detector of a movement surface course. The rebound property detector is characterized in that a base is connected to the lower part of a vertically arranged elevation ruler; a bracket is connected to the upper part of the vertically arranged elevation ruler; a height adjusting device is arranged on the elevation ruler; the height adjusting device is connected with the bracket; a ball hook is hinged with the other end of the bracket; the bracket is provided with a pulley; a drawing rope is connected with a fastener through the pulley; the fasten is sleeved on the ball hook; the ball hook is used for clamping the ball body; the ball hook is controlled to hold or release the ball body by drawing or releasing the drawing rope; an infrared probe and a lower computer are installed inside the base; the detection and the calculation on the time difference data when the ball body falls down to the movement surface course are accomplished by the lower computer; the data is transmitted to handheld devices in the hands of testing personnel; and the receiving, processing and display of the data are accomplished through the handheld devices. The rebound property detector is mainly used for measuring the rebound property of the ground of a sport field, and can also be applied to measurement of the rebound property of other grounds.

The invention discloses a monitoring device for water temperature of water conservancy. The monitoring device comprises a temperature sensor, a fixing clamp and a data processing device, wherein a transmission line is arranged above the temperature sensor; a monitoring device main body is arranged at one end of the transmission line; a waterproof sealing rubber ring is arranged below the monitoring device main body; and an electronic display screen is arranged on the outer surface of the monitoring device main body. The monitoring device for the water temperature of the water conservancy is provided with an anti-scratch film, the waterproof sealing rubber ring and a small solar cell panel, so that scratches can be prevented from being generated on the surface of the electronic display screen after the electronic display screen is used for a long time, the definition of the electronic display screen is protected, solar energy can be converted into electric energy to be stored in a storage battery, meanwhile, the monitoring device can be directly fixed on facilities such as a water gate dam for use in a place where a supporting frame is inconvenient to install, and the monitoring device is suitable for different working conditions and brings a better application prospect.

The invention relates to a vehicle-mounted RFID environment monitoring system and method. The vehicle-mounted RFID environment monitoring system comprises an RFID reader (1), an intelligent mobile terminal (2), environment monitoring sensors (2) and RFID labels (4); the RFID reader (1) and the intelligent terminal (2) are arranged inside a mobile monitoring vehicle; the RFID reader (1) is connected to the intelligent mobile terminal (2); the quantities of the environment monitoring sensors (3) and the EFID labels (4) are more than one; the environment monitoring sensors (3) and the RFID labels (4) are connected in one-to-one correspondence and distributed at various environment monitoring points; when the mobile monitoring vehicle moves, the RFID reader (1) is automatically connected to the RFID label (4) within a recognition range of the RFID reader (1), obtains position data and environment data in the RFID label (4) and transmits the position data and the environment data to the intelligent mobile terminal (2) in real time. Compared with the prior art, the vehicle-mounted RFID environment monitoring system is concise in system architecture, easy in operation, reliable in data transmission and low in total cost and can realize instant collection and display.

The invention discloses a three-dimensional model data display method and electronic equipment, and belongs to the technical field of image processing. A first display area is configured on a first surface to obtain first data information corresponding to a three-dimensional model; the first data information is rendered into the first display area; the first display area with the first data information is rendered into the three-dimensional model, so that a technical problem that the three-dimensional model and corresponding data are weakly relevant in the prior art is solved, and the technical effects of convenience in checking data and good realistic user experience immersion are realized.

The invention discloses a dehydration detection system of a cylinder washing machine. The system comprises a data detection module, the data detection module consists of an effect detection module, awear detection module and an abnormality detection module, the effect detection module consists of a quality comparison module, a rotation speed detection module and a flow speed detection module, theflow speed detection module consists of a water inlet flow speed detection module and a water outlet flow speed detection module, the wear detection module consists of a side edge pressure detectionmodule and a bottom pressure detection module, the data detection module is connected with a data processing module, the data processing module is connected with a data uploading module and an alarm module, the alarm module realizes alarm operation through an alarm, the data processing module is connected with user software through the data uploading module, the user software is connected with a data storage module, and the data storage module consists of a local storage module and a cloud storage module. According to the system, the dehydration quality judgment error of the cylinder washing machine is smaller.

The invention discloses a multifunctional cardiovascular medicine department monitoring device which comprises a table plate. Vertical support plates are fixedly installed on both sides of the bottomsurface of the table plate, a transverse plate is arranged on one side of the top surface of the table plate, and a circular groove is formed in one side of the top surface of the table plate. A plurality of sliding rods are fixedly installed on the bottom surface of the transverse plate, and the lower ends of the sliding rods are located in the circular groove and can slide along the circular groove. A through hole is formed in the bottom surface of one side of the table plate, the through hole communicates with the interior of the circular groove, a vertical rod is arranged in the through hole, and the upper end of the vertical rod is fixedly connected with the bottom surface of the transverse plate. A vertical fixed plate is fixedly installed on the bottom surface of the table plate, and guide sleeves are fixedly installed at the front and rear ends of one side of the vertical fixed plate. A rack penetrates through the interiors of the two guide sleeves, the rack can move along theguide sleeves, a gear is arranged on one side of the rack, and the gear meshes with the rack. According to the multifunctional cardiovascular medicine department monitoring device, a placement grooveof an oxygen mask can be opened while an electrocardiograph monitoring device is adjusted well, one-step-in-place is achieved, the operation is simple, and the time of treating patients is saved.

The invention discloses a teaching demonstration device for wisdom education, belongs to the technical field of wisdom education teaching, and can realize that in the education demonstration work of wisdom education, teaching personnel project teaching data onto a projection screen panel, and then the teaching data can be displayed on the projection screen panel. The height adjusting mechanism can be operated to adjust the height and angle of the projection screen panel according to the arrangement of the position of a person, so that students can watch data more conveniently, and when light is reflected on the surface of the projection screen panel due to sunlight rays, teaching personnel can pull open the shading mechanism to adjust the position of the projection screen panel. Meanwhile, the limiting mechanism is operated to limit the shading mechanism, so that the shading mechanism shields light rays on the side face, the phenomenon of light reflection caused by the fact that the light rays irradiate the surface of the projection screen panel is avoided, and after teaching work is finished, teaching personnel can cover the projection screen panel by pulling the shading mechanism; dirt on the surface of the projection screen panel caused by dust and dirt is prevented, and the surface of the projection screen panel is prevented from being cleaned during teaching.