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66results about How to "Applicable to different needs" patented technology

Full-digital real-time noise measurement and analysis method and system thereof

The invention discloses a full-digital real-time noise measurement and analysis method and a system thereof. The noise measurement and analysis system provided with a noise measurement and analysis software PDA is connected with a noise collection system by a USB port. The method and system realize the digitization of frequency weighting, time weighting, octave and 1 / 3 octave processing, and can display time domain waveform and frequency domain waveform and provide system settings; and a user can select settings of sampling frequency and sampling time of the noise collection system, select L linearity, A and C types of frequency weighting and select time average, fast gear and slow gear of time weighting. In a graphic display mode, the user selects a frequency domain analysis method of signals and displays a corresponding frequency spectrogram according to needs, wherein the functions of FFT frequency spectrogram analysis, octave frequency spectrum analysis, 1 / 3 octave frequency spectrogram analysis and the like realize the measurement and analysis to real-time noise. The method and system utilize a PDA computer system to realize the full-digital real-time noise signal measurement and analysis with low cost and high quality.
Owner:ZHEJIANG SCI-TECH UNIV

Manual and electric integrated screwdriver

ActiveCN111376201AApplicable to different needsMeet the requirements of different preloadSpannersWrenchesEngineeringElectric drive
The invention provides a manual and electric integrated screwdriver. The manual and electric integrated screwdriver comprises a screwdriver portion, a gripper mechanism, a pretightening force applyingmechanism, a state switching mechanism and an electric drive mechanism. The electric drive mechanism is mounted in the gripper mechanism, the electric drive mechanism is connected with the pretightening force applying mechanism, and the screwdriver portion is mounted in the pretightening force applying mechanism. The state switching mechanism is slidingly mounted on the outer side of the screwdriver portion. A push ring is controlled by manually controlling a push button, then outer clamping blocks and inner clamping blocks are controlled to be clamped with the screwdriver portion and the pretightening force applying mechanism correspondingly, and therefore manual operation and electric operation are switched. The outer clamping blocks and the inner clamping blocks of the state switchingmechanism are clamped with clamping grooves of the pretightening force applying mechanism and clamping grooves in a contact manner or are not in contact with the clamping grooves of the pretighteningforce applying mechanism and the clamping grooves correspondingly, the screwdriver is switched between the three states of electric work, manual work and manual work under pretightening force, and therefore the screwdriver can meet different requirements.
Owner:巫山县牧禾畜禽专业合作社

Induction cooker with electromagnetic leakage reminding function and radiation protection method

The invention discloses an induction cooker with the electromagnetic leakage reminding function and a radiation protection method. The induction cooker comprises an induction cooker shell, a coupling coil, magneto-dependent sensors and an infrared sensor, wherein the magneto-dependent sensors are arranged on the periphery of the induction cooker shell, and the infrared sensor is arranged on the induction cooker shell and faces operators. An output end of a controller is connected to an alarm device, a display and the coupling coil. When the numerical value of the electromagnetic intensity is detected to be greater than the set value, the controller can select to execute the safety priority mode or the cooking priority mode. The magneto-dependent sensors and the infrared sensor are arranged on the periphery of the induction cooker and are used for detecting the numerical value of electromagnetic leakage and the distance between people and the induction cooker respectively, and the numerical value and the distance are compared with an electromagnetic intensity-distance array stored in the controller. Thus, whether electromagnetic leakage of the environment where people are located goes beyond the limit at a certain distance can be determined, the automation degree and the humanization degree are high, and the injury of electromagnetic radiation to the human body can be reduced.
Owner:SHANGHAI DIANJI UNIV

Adjustable folding table and vehicle

The invention discloses an adjustable folding table and a vehicle, which belong to the technical field of vehicles. The adjustable folding table comprises a table plate, a support plate, a turnover mechanismand a sliding rail assembly, wherein one end of the support plate is provided with a chute; the turnover mechanism comprises a fixed part, a rotating part and a limiting part, the fixed part isconnected with the support plate, the rotating part is rotatably connected with the fixed part, the rotating part is connected with the table plate, and the limiting part is connected with the fixedpart; the sliding rail assembly is fixedly connected with a cab of the vehicle and comprises a protruding structure and a baffle structure, the protruding structure can be located in the chute, and when the protruding structure is located in the chute, the baffle structure is located outside the chute, and the support plate can horizontally slide on the protruding structure; the locking mechanismis fixed to one end of the support plate and used for locking the support plate to the baffle structure. According to the adjustable folding table, the stability, practicability and comfort of the adjustable folding table can be improved, the current situation that a practical table plate is lacked in a cab of a commercial vehicle is effectively solved, convenience is provided for daily use of a driver and passengers, and the driving and riding comfort is improved.
Owner:FAW JIEFANG AUTOMOTIVE CO

Combination pond and building method thereof

The invention discloses a combination pond and a building method of the combination pond. A pond body entrance and a pond body exit are arranged in the combination pond. The combination pond comprises a plurality of building pond single bodies, each side of the building pond single bodies is provided with a convex structure or a concave structure, each convex structure and each concave structure are identical in length, width and height, and the convex structures and the concave structures of every two opposite sides can be vertically clamped or horizontally clamped in a matching mode. Two adjacent building single bodies are sealed through a single body sealing part. The combination pond is formed by the building pond single bodies in a splicing and combining mode. In a production process, floor area in reproduction of the building pond single bodies is reduced, cost in production forming is reduced, and work loads of production are reduced. In a transportation process, the combination pond is small in size and convenient to transport. In application, the combination pond can be combined into combination ponds of different sizes based on required sizes and can be detached and conveniently and repeatedly utilized. Meanwhile, the shape of a square combination pond can be formed, and a utilization rate is higher.
Owner:太原市凌云志环保节能有限公司

Marine diesel engine starting protection method

The invention discloses a marine diesel engine starting protection method and belongs to the field of diesel engines. The marine diesel engine starting protection method can protect a diesel engine starter against long-time large-current supply, effectively avoid the condition that the starter is burnt down or damaged due to heat emitting, and effectively protect the starter against gear rolling caused by secondary starting; meanwhile, by combining the pre-supply process into the starting process, the starting process of the marine diesel engine is simplified, and it is ensured that the dieselengine is started after being fully lubricated; besides, an emergency starting button (SB2) is additionally arranged, and a starting protection contact is connected in a starting circuit in series, in other words, normal starting can be achieved in the situation of a failure of a staring button or a starting relay; and meanwhile, under the arrangement of a layer variant conduction contact, the situation that conduction of the circuit becomes poor as oxidation caused by conduction heat emitting is effectively relieved, the sensitivity of a whole starting protection logic control unit is effectively improved accordingly, and the effect of starting protection of the diesel engine is achieved.
Owner:JIANGSU ENDA GENERAL EQUIP

Telescopic navigation aid sign display board

The invention provides a telescopic navigation aid sign display board which comprises a sign display board, a controller and a solar cell panel. The sign display board is simultaneously provided with a navigation sign and a restricted navigation sign or is respectively provided with the navigation sign and the restricted navigation sign, and telescopic devices are arranged in the side length of the navigation sign and the side length of the restricted navigation sign. The telescopic devices control the navigation sign and the restricted navigation sign to extend by several meters in the side length direction, and the telescopic devices are connected with the controller. A plurality of lamp beads are mounted on the surfaces of the navigation sign and the restricted navigation sign, and the lamp beads are connected with the controller and the solar cell panel. The controller is connected with a transmission module arranged in the sign display board. According to the navigation aid sign display board, a sleeve design is adopted, the navigation sign and the restricted navigation sign can be prolonged, the navigation aid sign display board is suitable for various marine shipping requirements, shipping accidents can be reduced, the shipping safety can be enhanced, and the navigation aid sign display board can meet different requirements of customers.
Owner:广州智航船舶科技有限公司

Server

The embodiment of the invention provides a server. The server comprises a server body; a connecting plate is connected to the server body; a plurality of sockets are arranged on the connecting plate, and each socket comprises a heat dissipation module recognition part and a power supply module recognition part; a heat dissipation module comprises a first golden finger; a power supply module comprises a second golden finger; a first golden finger and a second golden finger have the same structure. In the installation process of the server, if the requirement of the server for the power supply power is high, the power supply modules can be inserted into the sockets, the number of the arranged heat dissipation modules is reduced, and more power supply modules can be assembled on the connecting plate of the server; and if the server does not have high requirement on the power of the power supply, the heat dissipation modules can be inserted into the sockets, and the number of the arranged power supply modules is properly reduced, so that the heat dissipation effect of the server is improved, the arrangement mode of the power supply modules and the heat dissipation modules is more flexible, the refitability is improved, and different requirements of the server can be met.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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