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27results about How to "Improve the induction effect" patented technology

A sensor capable of simultaneously detecting direct current and arc current

The present application discloses a sensor capable of simultaneously detecting direct current and arc current, comprising: a shell, comprising an inner wall and an outer wall, a gap being arranged between the inner wall and the outer wall; a magnetic core, being located in the gap, and having an open-loop gap of a preset size on a preset side wall; a PCB board, comprising a first part and a second part, the second part being connected to the first part, the second part being embedded between the two side walls of the gap, the first part being located outside the magnetic core and abutting against the side where the gap is located; a direct current detection chip, being attached to the first surface of the second part; an arc current detection chip, being attached to the second surface of the second part; a signal processing module, being respectively connected to the direct current detection chip and the arc current detection chip, and processing and outputting the detected direct current signal and arc current signal; the present solution can simultaneously detect direct current and arc current, and has a small volume, which is conducive to on-board installation.
Owner:NING BO SINOMAGS ELECTRONICS TECH CO LTD

Treadmill internal rotation brushless motor system and treadmill adopting same

The invention relates to the technical field of motors, and discloses a running machine internal rotation brushless motor system and a running machine adopting the system.The running machine internal rotation brushless motor system comprises a motor module and a magnetic induction module, the motor module comprises a middle shaft, and a permanent magnet is coaxially fixed to one end of the middle shaft; the magnetic induction module performs non-contact induction sampling on the permanent magnet, the magnetic induction module comprises a shell, a magnetic excitation body and an induction chip, the magnetic excitation body is rotationally arranged in the shell, the induction chip is fixedly arranged in the shell, and the permanent magnet, the magnetic excitation body and the induction chip are sequentially matched. The invention provides a non-contact induction sampling method on the application level of the treadmill motor, the sampling resolution precision is improved, the foot feeling during running start and stop is optimized, absolute and incremental output signals are provided in the magnetic induction module, different application requirements are met, high-precision position and speed feedback is realized, and the application range of the treadmill motor is widened. The control precision of the motor is improved, and the application range of the motor is widened.
Owner:KUNSHAN HENGJU ELECTRONIC CO LTD

Design method of bending detonation combustion chamber with V-shaped passivated front edge

The invention discloses a design method of a bending detonation combustion chamber with a V-shaped passivated front edge, and belongs to the field of hypersonic velocity detonation engines of aircrafts. The oblique detonation engine aims at solving the problems of an existing oblique detonation engine in the aspects of detonation, standing, mixing and the like. According to the method, by determining the temperature increasing amplitude of the V-shaped front edge, the distance and flow parameters of a detached shock wave are determined by using a two-dimensional detached shock wave theory, the geometrical shape and interference type of a bent shock wave are determined based on a bent shock wave theory, and the crotch shape of the passivated V-shaped front edge is determined. And finally, constructing a geometric model and a combustion chamber geometric model according to the passivation angle and curvature of the V-shaped front edge. According to the method, the length of the engine can be effectively shortened, the formation and stability of detonation waves are improved, effective standing of the detonation waves is achieved, and normal work of the engine is guaranteed. The combustion chamber has the advantages of saving space, being easy to detonate, compact in structure and the like, and is suitable for a propelling system of a hypersonic aircraft.
Owner:XIAMEN UNIV

Method for amplifying and inducing CD8 + T cells into CD8 + tissue settled T cells in vitro

The invention provides a method for amplifying and inducing CD8 + T cells into CD8 + tissue settlement T cells in vitro, which comprises the following steps: (1) sorting mouse spleen CD8 + T cells by magnetic beads, and activating for 2 days under the stimulation of an anti-mouse CD3 monoclonal antibody and an anti-mouse CD28 monoclonal antibody, and (2) adding 10ng / mL TGF-beta and 20ng / mL IL-25 to induce the generation of the CD8 + tissue settlement T cells. According to the invention, IL-25 is innovatively used for in-vitro induction of CD8 + T cells into CD8 + tissue settlement T cells, the formation proportion of CD8 + tissue settlement T cells and expression of killer molecules are effectively improved, and the induction effect is better than that of single use of TGF-beta or combined use of TGF-beta and IL-15.
Owner:AFFILIATED HOSPITAL OF JIANGSU UNIV

Method for producing soluble humanized acetaldehyde dehydrogenase 2 in escherichia coli

The scheme relates to a method for producing soluble human acetaldehyde dehydrogenase 2 in escherichia coli in the field of enzyme engineering, and the method comprises the following steps: firstly, inserting a human ALDH2 gene into a pET30a (+) plasmid through Nde I and Xho I restriction enzyme cutting sites to form a recombinant expression vector; then, transforming the recombinant vector into escherichia coli by utilizing a heat shock method, and screening out recombinant engineering bacteria which are correctly sequenced; and finally, inoculating and culturing the engineering bacteria under proper conditions, adding lactose as an inducer (the final concentration is 0.2-0.3 mM), inducing for 4-8 hours under the conditions of 25-35 DEG C and 100r / min, and then collecting thalli. The thalli are suspended by a buffer solution, treated by a cell crusher and centrifuged to obtain crude enzyme, and the crude enzyme is further purified to obtain the soluble recombinant human-derived ALDH2. According to the method disclosed by the invention, the production of the soluble humanized acetaldehyde dehydrogenase 2 from the escherichia coli is realized.
Owner:MOUTAI INST

Panel controller for controlling lamp

The panel controller comprises an installation box body, a panel, a rear cover plate, a control panel and an installation support, the panel is installed on the front face of the installation box body, the control panel is installed in the installation box body, the rear cover plate is installed on the rear face of the installation box body, a magnet groove is formed in the rear cover plate, a magnet is arranged in the magnet groove, and the installation support is installed on the installation box body. The mounting bracket is matched with the magnet to be magnetically connected with the rear cover plate, the mounting bracket is mounted on a wall surface, the control panel is connected with the panel, the control panel is in communication connection with a controlled lamp, a charging interface is formed in the side surface of the mounting box body, the charging interface is connected with the control panel, and the control panel is connected with the lithium battery. According to the utility model, the rechargeable lithium battery is used for endurance, the mounting bracket is used as a fixing plate part, the mounting bracket is mounted by adopting two mounting modes of gum or screws, and the body of the controller is fixed by adopting a magnetic attraction mode so as to adapt to different decoration environments.
Owner:JIANGSU XGL OPTOELECTRONICS

An inducer for improving female flower differentiation of xanthoceras sorbifolia bunge and its preparation method and application

PendingCN122498514AIncrease the number of differentiationsIncrease the proportionGrowth plantFruit set
This invention belongs to the field of plant growth regulator technology, and relates to an inducer for improving female flower differentiation in *Xanthoceras sorbifolium*, its preparation method, and its application. The inducer, calculated per liter of aqueous solution, comprises 150-1200 mg of 6-benzyladenine, 10-50 mg of salicylic acid, 100-300 mg of choline chloride, 1.0-5.0 g of urea, 2.0-3.0 g of potassium dihydrogen phosphate, 0.5-2.0 g of boric acid, and 0.5-1.0 mL of emulsifier. This invention constructs a multi-component synergistic system for the directional regulation of flower bud sex differentiation, significantly increasing the number and proportion of female flowers in *Xanthoceras sorbifolium*, and reducing the flower bud abortion rate. Simultaneously, it improves the receptivity of the stigma of female flowers and the subsequent fruit setting rate, increasing yield per unit area, solving the industrial problem of "one fruit per thousand flowers" in *Xanthoceras sorbifolium*, and meeting the core needs of high-yield and high-efficiency cultivation and large-scale industrial development of *Xanthoceras sorbifolium*.
Owner:XINJIANG ACADEMY OF FORESTRY SCI

Fingerprint identification module with fillet

The utility model discloses a fingerprint identification module with a fillet, which comprises a capacitive fingerprint chip, decorative ink and a substrate, the capacitive fingerprint chip is arranged on the upper surface of the substrate, the capacitive fingerprint chip is provided with at least one side fillet, and the decorative ink covers the side fillet of the capacitive fingerprint chip. The side edge of the fingerprint identification module adopts the fillet design, so that the phenomenon of oil accumulation at the fillet can be avoided.
Owner:TRULY OPTO-ELECTRONICS TECH LTD

Interactive intelligent environment quality sensor based on artificial intelligence and system thereof

The invention discloses an interactive intelligent environment quality sensor based on artificial intelligence and a system thereof, and relates to the technical field of environment detection, the upper end of a sensing box is connected with a temperature adaptation cover, the rear wall of a temperature adaptation bin is connected with a positive clamping plate and an auxiliary clamping plate through a clamping mechanism, and sensing equipment is fixedly connected between the positive clamping plate and the auxiliary clamping plate; the upper end of the temperature adaptation cover is connected with a guide mechanism, the rear end of the telescopic baffle is provided with a telescopic hole, and the inner wall of the telescopic hole is slidably connected with the outer wall of the telescopic column. The temperature adaptation device has the advantages that heat can be stored through the temperature adaptation bin, the sensing device is in a temperature range suitable for use through the heat, and the sensing effect of the sensing device is improved; and through the arrangement of the positive clamping plate and the auxiliary clamping plate, the convenience of the sensing equipment during installation can be improved, the size of the heat dissipation opening can be adjusted in a more novel manner by utilizing the telescopic baffle plate and the telescopic column, and the heat dissipation efficiency is improved.
Owner:GUANGZHOU TIANLING INTELLIGENT TECHNOLOGY CO LTD

An NFC double-sided wiring parallel connection structure

This application discloses an NFC double-sided trace parallel connection structure, belonging to the field of near-field communication applications. The NFC double-sided trace parallel connection structure effectively reduces the overall antenna DCR, thereby reducing energy loss during signal transmission. The NFC module consumes less power during operation, helping to extend the device's battery life and making communication between the NFC device and external reading / writing devices more stable and efficient, improving data transmission speed and accuracy. The lower resistance enhances the antenna's sensing capability, increasing the effective sensing distance between the NFC device and other devices, making operation more convenient and flexible for users. Furthermore, the improved signal transmission enhances the compatibility of the NFC device with various types and brands of reading / writing devices, ensuring normal operation in more scenarios. In addition, the antenna thickness under this structure is not significantly different from that of conventional double-sided boards, thus requiring no special antenna space and exhibiting good applicability in practical applications.
Owner:HOLYPAO

Components that enable 3D sensing in a single Hall zone

The present invention provides a component for realizing 3D sensing in a single Hall region, and relates to the technical field of Hall effect sensors. The component for realizing 3D sensing in a single Hall region includes a substrate, a buffer layer, a functional layer, a sensing layer, a magnetic core and a plurality of electrodes, wherein the buffer layer, the functional layer and the sensing layer are formed in sequence; two groups of electrodes are arranged on the sensing layer, and each group includes at least 4 electrodes distributed along the same circumference, and the two groups of electrodes are arranged staggered in the circumferential direction and are centrally symmetrical; the magnetic core is arranged on the sensing layer; the cross section of the magnetic core is a symmetrical structure, and the projection center overlaps with the distribution center of the plurality of electrodes. Compared with the prior art, the present invention has a compact structure, can effectively save space, is compatible with conventional planar processes, reduces production difficulty and cost, and has high symmetry in design, good sensing performance, high directional uniformity, extremely convenient and simple calibration, and the output voltage has high linearity in three directions.
Owner:SUZHOU JUZHEN PHOTOELECTRIC

Sulfonium salts and acid generators comprising same

Provided is a novel light-sensitive compound which quickly decomposes and generates an acid when irradiated with light having a wavelength of 20 nm or less. A sulfonium salt according to the present invention is represented by formula (1). In the formula, Rf1, Rf2, Rf11 and Rf12 may be the same or different and each represents a fluorine atom or a fluoroalkyl group. R1, R2, R3, R11, R12, R13, R21, R23, and R25 may be the same or different and each represents a hydrogen atom, a hydroxyl group, an alkyl group, or an iodine atom. R22 and R24 may be the same or different and each represents a hydrogen atom, a hydroxyl group, an alkyl group, an iodine atom, a fluorine atom or a fluoroalkyl group. And X-represents a monovalent counter anion. (In the formula, at least one element selected from the group consisting of R1, R2, R3, R11, R12, R13, and R21 to R25 represents an iodine atom. # imgabs0 #
Owner:SAN APRO LTD

Resist composition and pattern forming method

The invention relates to a resist composition and a pattern forming method. The invention provides a resist composition of a photosensitive onium salt having a cation with high photosensitivity, which has good sensitivity, small edge roughness and dimensional deviation, excellent resolution and good storage stability, and a pattern forming method. A resist composition characterized by containing a resin (A) having an increased alkali solubility due to the action of an acid, a carboxylic acid (D) represented by general formula (1), and a photoacid generator (B) and / or a photodisintegrating base (C). [In the formula, R1 is an organic group having 1-30 carbon atoms, and R2 is an organic group having 1-8 carbon atoms and optionally containing fluorine atoms.
Owner:SHIN ETSU CHEMICAL CO LTD

A detection system for the boom of construction machinery approaching high-voltage lines; construction machinery

ActiveCN224436480UImprove the induction effectFull Coverage GuaranteedControl engineeringControl theory
This application relates to a detection system for the proximity of a boom to a high-voltage power line on an engineering machinery unit. The engineering machinery includes a boom, which comprises multiple boom sections. The detection system includes a high-voltage power line detection component and a controller. The high-voltage power line detection component is mounted on at least one boom section and is an antenna extending along the length of the boom section. Each boom section's corresponding high-voltage power line detection component is connected to the controller. The technical solution of this application designs the high-voltage power line detection component as an antenna extending along the length of the boom section, using a detection surface instead of a detection point, thereby improving the sensing capability for high-voltage power lines and ensuring that the protection range covers the entire boom section. Furthermore, when high-voltage power line detection components are simultaneously mounted on multiple boom sections, interference between the high-voltage power line detection components and the boom section structure can be reduced or avoided.
Owner:ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD

External infrared induction mounting structure for line lamp

The external infrared induction installation structure comprises a lamp body and a sensor assembly detachably connected with the lamp body, the lamp body is composed of a bottom frame and a lamp panel body connected to one side of the bottom frame, and the lamp panel body is composed of a light source plate and a lampshade connected to one side of the light source plate. A jack communicated with the light source plate is formed in the lampshade, the sensor assembly comprises a sensor body located outside after being connected with the lamp body and a plug connected with one end of the whole sensor body, and the sensor body is connected with the light source plate through matching of the plug and the jack. The line lamp solves the problems that in the prior art, an induction assembly of a line lamp is not convenient to assemble, disassemble, replace and maintain, and the heat dissipation and sensing performance is low.
Owner:TORSHARE

A method for synthesizing β-amino alcohol using 1,2-butylene oxide

The invention discloses a method for synthesizing β-amino alcohol using 1,2-butylene oxide, and relates to the technical field of β-amino alcohol synthesis. The present invention uses amylamine and 1,2-butylene oxide as raw materials, deionized water and alcohol as mixed solvents, and prepares β-amino alcohol through a ring-opening reaction by the protective effect of CO2 on the reaction product without any catalyst. The present invention has the characteristics of high conversion rate and high yield, belongs to the category of "green chemistry", has the characteristics of mild conditions, simple operation, short reaction time, high economic benefits, and is suitable for large-scale production.
Owner:NORTH CHINA INST OF AEROSPACE ENG

A method for liquid fermentation culture of Agaricus oleifera and rapid mushroom production inspection

The invention discloses a method for liquid fermentation culture and rapid fruiting inspection of shimeji mushrooms. The method is characterized by rapid fruiting identification (testing) of the appearance and adaptability of shimeji mushrooms fermented in liquid culture medium and introduced and cultivated new varieties. Corn powder and soybean meal powder, which are abundant in Guizhou Province, are used as the main carbon and nitrogen sources of the liquid culture medium to carry out liquid fermentation culture of mycelium balls, and the liquid culture medium is directly used to solidify the fruiting. During the fruiting process, spraying a suitable fruiting body nutrient solution can make the fruiting effect of the liquid culture medium better. It not only changes the traditional fruiting method, but also can be used for the rapid preliminary inspection of production traits, commercial traits, genetic traits and adaptability of the introduced new varieties of shimeji mushrooms. The method has the advantages of directly fruiting mushrooms using solidified liquid culture medium; shortening the time for making fungus bags, sterilizing, inoculating, culture of fungus bags, post-ripening and fruiting; and being able to culture strains and judge the quality, production performance and efficacy of strains in a relatively short time.
Owner:GUIZHOU UNIV

A testing device and method for the transmission stability of a multi-stage gearbox.

This invention relates to the field of gearbox condition detection technology, specifically to a detection device and method for multi-stage gearboxes with transmission stability. The device includes a fault feature extraction component as the core of an intelligent sensor. The fault feature extraction component comprises an insulating carrier, a signal pickup coil wound on the insulating carrier, and an upstream detection sensitivity gain unit. The detection sensitivity gain unit has a rectifier channel that constrains dispersed wear products to the insulating carrier. An adaptive stabilizer is arranged around the fault feature extraction component to form a flow bypass. The adaptive stabilizer performs axial compensation displacement in response to fluid pressure fluctuations in the monitoring environment. This invention utilizes fluid acceleration and inertial sorting. When the sleeve pressure senses and opens the bypass to drain oil, the inertial difference propels high-momentum abrasive particles into the central detection area, thereby achieving oil bypass but not abrasive particle bypass, ensuring accurate capture of weak fault features under all operating conditions.
Owner:JIANGSU KANGBAISI MASCH TECH CO LTD

A method for inducing callus and regenerating adventitious buds from Acer truncatum stem segments

The invention discloses a method for inducing callus of Acer truncatum stem segments and regenerating adventitious buds, and relates to the technical field of plant rapid propagation. The invention inoculates Acer truncatum stem segments into callus induction medium for callus induction culture to obtain Acer truncatum callus; inoculates callus into adventitious bud differentiation medium for adventitious bud differentiation culture to obtain Acer truncatum callus differentiated with adventitious buds; cuts off the adventitious buds and transfers them to rooting medium for rooting culture until adventitious roots grow out of the base of the adventitious buds, thereby obtaining Acer truncatum regenerated plants. The results show that the combination of ①2,4-D and BA or ②IBA and BA in the callus induction medium has the best induction effect on the callus of Acer truncatum stem segments; CPPU is a key factor in inducing Acer truncatum callus to differentiate adventitious buds; and solves the problem of the difficulty of Acer truncatum callus differentiation in the prior art, which is of great significance for promoting the breeding and industrialization development of Acer truncatum.
Owner:JIANGSU ACAD OF AGRI SCI

Magnetic sensor preparation method and magnetic sensor

The invention relates to a magnetic sensor preparation method and a magnetic sensor, after an inclined structure is manufactured on a substrate, a first TMR magnetic multilayer film pattern is formed on a plane / inclined structure of the substrate, and a second TMR magnetic multilayer film pattern is formed on the inclined structure / plane of the substrate. And etching the first TMR magnetic multilayer film pattern and the second TMR magnetic multilayer film pattern to form a first metal layer and magnetic tunnel junctions on the plane of the substrate and the inclined surface of the inclined structure, and performing metal coating and etching on the substrate to form a second metal layer connected with the magnetic tunnel junctions. By respectively forming the first TMR magnetic multilayer film pattern and the second TMR magnetic multilayer film pattern, the thickness of the generated TMR magnetic multilayer film can be controlled according to the actual deposition requirement of the plane / inclined structure of the substrate, so that the overall thickness of the TMR magnetic multilayer film is consistent or the thickness requirements of the plane and the inclined plane on the TMR magnetic multilayer film are respectively met; and the induction performance of the magnetic sensor is improved.
Owner:QST CORP

Configuration of all-terrain vehicles

This utility model relates to the configuration structure of an all-terrain vehicle. The all-terrain vehicle includes at least a frame unit and a body cover unit covering the outer periphery of the frame unit. The frame unit is connected to a steering mechanism, which includes a steering handle. The body cover unit includes at least a steering handle cover covering the steering handle and a maintenance cover located in front of the steering mechanism. A keyless controller is installed on the frame unit, along with a long-range antenna and a short-range antenna electrically connected to the keyless controller. The keyless controller and the long-range antenna are housed within the maintenance cover. This improves the usability of the all-terrain vehicle and facilitates maintenance of the keyless controller and the long-range antenna by housing them within the maintenance cover.
Owner:KWANG YANG MOTOR LTD

Dynamic mechanical structure type wind vane landing landscape tower

This invention provides a dynamic mechanical structure wind vane ground-mounted landscape tower, relating to the field of communication landscape towers. It includes a landscape column, a flipping guide rod, a marker head, a marker tail, and an extension plate. The landscape column has two annular sub-tower structures on its upper and lower sides of its outer end face, symmetrically positioned. The landscape column's outer end face has four outward-facing adjustment cavities. This design uses a threaded connection to move a telescopic connecting cylinder outward, which in turn moves the connecting guide plate, and then, through transmission, moves the directional marker outward. As the directional marker moves outward, it makes it easier for pedestrians to understand the wind direction, providing a direct visual representation of the wind's direction. This design also deforms the extension plate, increasing the wind-receiving area of ​​the marker tail, thereby expanding the wind-sensing area and improving the wind vane's sensing accuracy. This facilitates adjustment and sensing of the wind direction angle, and the change in the dynamic mechanical structure enhances the wind vane's sensing effect.
Owner:8TELECOM INT HLDG CO LTD

Calcium fluoride composite inducer and calcium fluoride induction purification system and method

The invention discloses a calcium fluoride composite inducer and a calcium fluoride induction purification system and method.The calcium fluoride composite inducer is prepared from 50-100 parts of styrene, 100-150 parts of formaldehyde polymer, 0.1-0.5 part of polyacrylamide, 2-4 parts of tetrafluoroethylene resin and 300-400 parts of water; fluorine-containing wastewater enters the calcium fluoride induction purification system to be treated through a calcium fluoride induction purification method, on the basis of a two-stage fluorine removal process, calcium fluoride in a first-stage fluorine removal reaction tank is adsorbed through a calcium fluoride composite inducer, and the calcium fluoride composite inducer is separated from other impurity sludge through a first-stage hydraulic separator; the calcium fluoride is separated from the calcium fluoride composite inducer through a first-stage hydraulic separator, a high-purity calcium fluoride product is formed through filter pressing, the calcium fluoride composite inducer can be reused, the calcium fluoride obtained through the method is high in purity, the induction process is simple and safe, and the treatment cost is low.
Owner:SUZHOU ZHANQING ENVIRONMENT PROTECTION TECHCO LTD

Capacitive foot sensor and intelligent pedestal pan

The capacitive foot sensor comprises a circuit board, a component, a sensing metal and an electric connecting wire, the electric connecting wire is electrically connected with the circuit board, the component is arranged on the circuit board, the sensing metal is of a flexible sheet structure, the circuit board is an FPC board, the sensing metal is arranged on the circuit board, and the circuit board is electrically connected with the component. Or the circuit board is a PCB (Printed Circuit Board) and is electrically connected with the induction metal through a flexible connecting piece. According to the utility model, the circuit board of the flexible sheet-shaped structure or the induction metal is used as an installation main body matched with the ceramic curved surface of the pedestal pan, so that large-area fitting between the sensor and the ceramic curved surface of the pedestal pan can be realized, a better induction effect can be formed, and the installation adaptability is improved; the possibility of gap generation or separation between the two parts in the transportation process is reduced, and the induction effect during use is ensured.
Owner:HENGCHEN INTELLIGENT TECHNOLOGY (FOSHAN) CO LTD

Background suppression bathroom inductor and inductive self-starting device

The invention discloses a background suppression bathroom inductor and induction self-starting equipment, and the background suppression bathroom inductor comprises a base which is installed on a bathroom device; the transmitting module is mounted on the base, the receiving module is mounted on the base, and the receiving lens is used for focusing light reflected by a shielding object in a first distance range in front of the light transmitting element and transmitting the light to the first position sensitive element so as to communicate with the bathroom device and drive the bathroom device to run and start; the receiving lens is used for focusing light reflected by a shielding object in a second distance range located on the rear side of the first distance range and emitting the light to the second position sensitive element so as to interrupt communication with the bathroom device and drive the bathroom device to be kept closed. Through optimized optical design and structural layout, high adaptability to objects of various colors and different illumination environments is realized, and the problems of unstable sensing distance, frequent false triggering, poor waterproof performance and the like in the prior art are effectively solved.
Owner:JIANGMEN IRAY OPTICS TECHN

Double-PIR lens structure applied to doorbell

The utility model belongs to the technical field of smart home, and discloses a double-PIR lens structure applied to a doorbell, which comprises a lens main body and two lens body parts, the two ends of the lens main body are respectively provided with an arc-shaped bending part, the two lens body parts are arranged on the left side and the right side of the lens main body, and the two arc-shaped bending parts are arranged on the lens main body. One end of each lens body part, which is far away from the center of the lens main body, is arranged on the corresponding arc-shaped bending part, one lens body part is focused on the sensing position of one PIR sensor of the doorbell, and the other lens body part is focused on the sensing position of the other PIR sensor of the doorbell. The left and right detection angles can reach 180 degrees, the upper and lower detection angles are 55 degrees, the detection range is greatly expanded, the two mirror body parts are symmetrically distributed and accurately matched with the double-PIR sensor layout of the doorbell, left and right partition independent focusing is achieved, detection blind areas are avoided, and the sensing ability of the doorbell to people approaching in different directions is effectively improved.
Owner:TIANJIN AISHI KAI RUI TECH DEV CO LTD