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30results about How to "No false triggers" patented technology

Electric lifting platform control method capable of realizing rollback when meeting resistance

The invention relates to the technical field of electric lifting platforms, in particular to an electric lifting platform control method capable of realizing rollback when meeting resistance, The electric lifting platform control method comprises the following steps: S1, detecting the state of the lifting platform at a time interval of X, if the lifting platform is in the static state, skipping toS2, and if the lifting platform is in the moving state, skipping to S3; S2, reading the magnitude of angular velocity and/or acceleration magnitude of a multi-axis motion sensor, taking the magnitudeof angular velocity and/or acceleration magnitude of the multi-axis motion sensor as reference values, and then returning to S1; and S3, reading the magnitude of angular velocity and/or accelerationmagnitude of the multi-axis motion sensor, comparing the read values with the reference values, if the changing value after comparison exceeds the set threshold value, judging that the platform meetsresistance, controlling the lifting platform to stop or carry out rollback action, if the changing value after comparison does not exceed the set threshold value, judging that the lifting platform does not meet resistance, and returning to S1. The false triggering rate of the lifting platform controlled through the control method is lower and the judgement precision rate is higher.
Owner:宁波乐歌信息技术有限公司

Man-machine interaction ring by capacitance touch and interaction method of man-machine interaction ring

The invention discloses a man-machine interaction ring by capacitance touch. The man-machine interaction ring comprises a ring body, a first capacitance touch key, a second capacitance touch key, a third capacitance touch key, a touch sensing chip, a main control chip and a wireless data transmission module, the first capacitance touch key, the second capacitance touch key and the third capacitance touch key are arranged on the surface of the ring body, the touch sensing chip, the main control chip and the wireless data transmission module are arranged in the ring body, signal output ends of the first capacitance touch key, the second capacitance touch key and the third capacitance touch key are connected with a signal input end of the touch sensing chip, a signal output end of the touch sensing chip is connected with a signal input end of the main control chip, and a signal output end of the main control chip is connected with a signal input end of the wireless data transmission module. The invention further discloses an interaction method of the man-machine interaction ring by capacitance touch. The man-machine interaction ring completely solves false triggering problems and adapts ring shells of different sizes, the size of an inner circuit board can be adjusted, and low-cost and mass production is achieved.
Owner:四川创一智慧科技有限公司

Gas cylinder type pressure-stabilizing dual-mode oxygen supply device

The invention discloses a gas cylinder type pressure-stabilizing dual-mode oxygen supply device. The gas cylinder type pressure-stabilizing dual-mode oxygen supply device comprises a gas cylinder, a nasal oxygen tube and an integrated valve mounted on the gas cylinder, wherein a nasal suction joint on the nasal oxygen tube is inserted into a nasal cavity of a user; a gas outlet outer joint and a gas suction outer joint of the integrated valve are connected with a gas inlet of the nasal oxygen tube; the integrated valve comprises a valve body, a valve cover, a filling module, a flow regulatingmodule and a pulse oxygen supply module, wherein the filling module, the flow regulating module and the pulse oxygen supply module are mounted on the valve body and the valve cover; oxygen in the gascylinder passes through the filling module and the flow regulating module and then is output by the pulse oxygen supply module; the pulse oxygen supply module comprises a gas inlet unit, a gas outletunit and a gas suction unit; and the gas inlet unit comprises a sixth gas channel and a seventh gas channel which are used for feeding gas through the same gas inlet source. According to the gas cylinder type pressure-stabilizing dual-mode oxygen supply device, all mechanical parts are adopted to realize continuous and pulse dual-mode oxygen supply, and a pressure stabilizing module and the filling module are integrated inside, so that the device structure and gas guide tube connection are simplified, and therefore, use of the user is convenient.
Owner:AEROSPACE JINPENG TECH EQUIP (BEIJING) CO LTD

Eye movement interaction method, head-mounted device and computer readable medium

The present invention provides an eye movement interaction method for a virtual reality and/or augmented reality head-mounted device, a head-mounted device, and a computer readable medium, the eye movement interaction method comprising: displaying a virtual reality scene on a screen without displaying a menu; tracking the sight of the user; judging whether the user performs a menu triggering eventthrough eye movement or not according to the tracked sight line; and under the condition that the user performs the menu triggering event, displaying the menu. The eye movement interaction method canalso comprise the following steps: judging whether a user performs a menu selection event or not according to the tracked sight line under the condition of displaying a menu; and under the conditionof determining that the user performs the menu selection event, executing a command corresponding to the selected menu item, and hiding the menu. The menu in the eye movement interaction method of thehead-mounted device is invisible at ordinary times, the view of the user is not occupied, the menu appears only when the user wants to call out the menu, and the effectiveness, accuracy and robustness of the menu triggering technology and the selection technology are verified through experiments.
Owner:TSINGHUA UNIV

Flow-adjustable continuous and pulsed dual-mode oxygen supply module

The invention discloses a flow-adjustable continuous and pulsed dual-mode oxygen supply module. The module comprises a flow adjusting unit, an air inlet unit, an air outlet unit and an air suction unit. The flow adjusting unit comprises a valve body and a check ring, the valve body synchronously rotates around a valve rod, a plurality of throttling holes and a bypass hole are formed in the valve body, a first air channel corresponding to the throttling holes is formed in a decompression chamber cover plate, and the first air channel and a second air channel communicate with an air inlet sourcethrough the throttling holes and the bypass hole respectively. The air outlet unit comprises an air outlet outer joint, an air outlet valve plate and an air outlet cavity which are arranged on the valve body. The air suction unit comprises an air suction outer joint, an air suction valve plate and an air suction cavity which are arranged on a valve cover, an air inlet convex nozzle communicatingwith the air outlet cavity is arranged on the air suction valve plate, and an air inlet diaphragm used for opening and closing the air inlet convex nozzle is arranged above the air inlet convex nozzle. According to the module, pure mechanical parts are adopted to realize oxygen supply in pulsed and the continuous modes, the flow is adjustable, power supply is not needed in use, and requirements ofspecial occasions are met.
Owner:AEROSPACE JINPENG TECH EQUIP (BEIJING) CO LTD

Amphibious key based on electromagnetic induction principle

The invention provides an amphibious key based on an electromagnetic induction principle. The amphibious key comprises a permanent magnet sheet stress column, a permanent magnet sheet, a permanent magnet sheet cover plate, an arc-shaped sliding groove, an upper nut, an upper gasket, a winding magnetic core column, a cylindrical permanent magnet, an induction coil, a permanent magnet coil bin and asignal contact point. The opposite surfaces of the permanent magnet sheet and the cylindrical permanent magnet are the same in magnetic polarity, the permanent magnet sheet and the permanent magnet sheet are in a suspension state due to the repulsion effect between the cylindrical permanent magnet and the permanent magnet sheet, and the repulsion effect between the same poles is restored to the original state after the key is pressed down; four operations of pressing, bouncing, long pressing and short pressing of the key can be judged by utilizing the positive and negative polarities of the key output signal and the conversion time interval between the positive and negative polarities; certain gaps are reserved among the three groove-shaped connecting pieces, when the key is pressed down,water in the arc-shaped sliding grooves is discharged from the gaps, and it is guaranteed that the inner water pressure and the outer water pressure are consistent. Therefore, the sensitivity of thedevice is irrelevant to the underwater depth of the key, and the device can adapt to a deep water environment.
Owner:750 TEST SITE OF CHINA SHIPBUILDING IND CORP

Self-adaptive control oxygen supply module

The invention discloses a self-adaptive control oxygen supply module which comprises a gas inlet unit, a gas outlet unit and an inspiration unit. The gas inlet unit comprises a first gas channel and asecond channel, wherein gas from the same gas inlet source enters the first gas channel and the second gas channel. The gas outlet unit comprises a gas outlet external joint arranged on a valve body,a gas outlet valve plate and a gas outlet cavity. The inspiration unit comprises an inspiration external joint arranged on a cover, an inspiration valve plate and an inspiration cavity. A gas inlet convex nozzle communicating with the gas outlet cavity is arranged on the inspiration valve plate. A gas inlet membrane used for opening and closing the gas inlet convex nozzle is arranged above the gas inlet convex nozzle. The gas inlet membrane is located in the gas inlet cavity, an adjusting elastic element is arranged above the gas inlet membrane, and the gas inlet cavity communicates with theinspiration external joint through a gas path. By means of the self-adaptive control oxygen supply module, pure mechanical parts are adopted to achieve oxygen supply of a pulse mode and a continuous mode, a inspiration channel and a breathing channel can be opened self-adaptively according to the breathing actions of users in the pulse manner to achieve pulse oxygen uptake, and the aim of saving the oxygen quantity is achieved.
Owner:无锡金都机械装备有限公司

Novel projector key structure

ActiveCN112017891AWith the effect of mechanical touchNo false triggersProjectorsElectric switchesKey pressingEngineering
The invention discloses a novel projector key structure, and belongs to the technical field of projectors. The novel projector key structure comprises: a key board arranged at the top of a case; arrayed key single bodies arranged at the front end of the key board, wherein each arrayed key single body comprises a key section and a deformation section with a concave structure, each deformation section comprises a rear transverse section, a rear vertical section, a bottom transverse section, a front vertical section and a front transverse section which are sequentially connected into a whole, the rear transverse section and the front end of the key board are connected into a whole, and the key section and the front transverse section are connected into a whole, the top surfaces of the key board, the rear transverse section, the front transverse section and the key section are flush with one another, the bottom surfaces of the deformation sections are higher than the top of the case, anda cut-off groove is formed between every two adjacent key single bodies; and a plurality of concave cavities in one-to-one correspondence with the key single bodies, arranged at the front end of the top of the case, wherein key assemblies for receiving key section pressing information are arranged in the concave cavities. The novel projector key structure has a mechanical touch effect, false triggering is avoided, and the consistency is good.
Owner:CHENGDU XGIMI TECH CO LTD

Automatic fusing device and method for safety belt and vehicle

The invention discloses an automatic fusing device and method for a safety belt and a vehicle, the safety belt automatic fusing device comprises a safety belt, a lock pin, a lock catch and a safety belt retractor, a braid hole is formed in the lock pin, and a thrust block is arranged in the lock catch; the device also comprises a heating wire, a safety airbag controller, a power module and a BCM body controller for controlling the power module be on and off. The safety airbag controller is connected with the BCM body controller, a first binding post is arranged at the lower end of a spring bolt of the lock pin, and the two ends of the electric heating wire are connected with the power module and the first binding post. A second binding post used for abutting against the first binding post is arranged on the top face of the thrust block. The BCM body controller and the second binding post are connected with the power module, and the electric heating wire is arranged in the braid hole and used for fusing the safety belt in the braid hole. According to the automatic fusing device for the safety belt, the tied safety belt is automatically electrified, heated and rapidly fused, the restraint of the safety belt on people is rapidly eliminated, and trapped passengers in a passenger compartment are rescued.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD
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