39results about How to "Avoid occlusion effects" patented technology

The present invention relates to a system for improving a user's hearing and more particularly to a receiver system used in the system. In one embodiment, the receiver system has a housing and a plurality of arms extending from the housing for positioning and suspending the receiver within the ear canal of a user. Each of the arms may be formed from a flexible, plastic material or a bendable wire. In a second embodiment, the receiver system is surrounded by a disc formed from a sound filtering material. When installed in a hearing aid system, the receiver is separated from the microphone. When installed in a tinnitus / hyperacusis device, the receiver is separated from the body of the instrument.

An earplug (7) for a hearing aid (1), in particular for a BTE-type hearing aid, has a front end (8) and a rear end (9). The front end (8) is adapted to be inserted into an ear canal of a wearer. The earplug (7) comprises a main body part (10) comprising a longitudinal bore (11) extending along a centrally arranged axis (A-A) of the earplug (7), and at least one sound output passage (17) in communication with said longitudinal bore (11) and leading to a sound output opening (18). The earplug also has a collar (19), which is adapted to engage the wall of an ear canal and surrounds the main body part (10). The output opening (18) has at least one edge part (18a) located in a retracted manner with respect to said front end (8).

The invention relates to the field of medical apparatus and instruments, and discloses a laser positioning system and a laser positioning method used for radiation therapy. The laser positioning system is mounted in a treatment room provided with an accelerator, and comprises a collimating laser positioning module and an auxiliary laser positioning module, wherein laser emitted by the collimating laser positioning module is used for locating an irradiation area of the accelerator; the auxiliary laser positioning module is used for carrying out auxiliary positioning on a positioning area. The laser positioning method comprises the following steps: moving a bed surface of a treatment bed to the positioning area; by virtue of the collimating laser positioning module and the auxiliary laser positioning module, adjusting the position of the bed surface of the treatment bed in the horizontal direction and the angle of the bed surface of the treatment bed relative to the horizontal plane, thus completing positioning; and by virtue of the collimating laser positioning module, translating the bed surface of the treatment bed to the irradiation area. With the system adopting the positioning method, the angle of the bed surface of the treatment bed can be easily adjusted.

The invention discloses a medical adjustable lip opening device. The device comprises an annular base plate, wherein an outer ring body and an inner ring body are concentrically fixed on the base plate; the outer ring body is positioned at the outer ring of the base plate; the diameter of the inner ring body is equal to the average value of the diameters of the inner ring and the outer ring of thebase plate; the inner ring of the outer ring body is provided with an outer groove; the outer ring of the inner ring body is provided with an inner groove; the outer groove and the inner groove are jointly and slidably connected to a plurality of movable blocks; and each movable block is fixedly connected to a plastic rod parallel to the axis of the base plate. The device has the advantages that:in the invention, the lips of a patient are opened by a soft bag, and the pressure of the soft bag to each position of the oral cavity of the patient is equal so as to reduce discomfort; when the opening size is proper, the inner lead is electrified, so that the shapes of the plastic rod and the slide blocks cannot be continuously changed; and in the invention, partial structures such as a rubberhead are arranged, so that the extrusion force of the soft bag to each point is fully ensured to be equal.

The invention discloses a fisheye camera shadow correction parameter determination method, a fisheye camera shadow correction method, a fisheye camera shadow correction parameter determination device,a fisheye camera shadow correction device, a storage medium and a fisheye camera. The fisheye camera shadow correction parameter determination method comprises the steps of: acquiring an original image of the fisheye camera, wherein the original image is shot when the fisheye camera is not provided with an outer shell; counting luminance information and chrominance information of the original image in each block; and calculating correction parameters of the fisheye camera according to the luminance information and chrominance information of each block. By adopting the methods and the devicesdisclosed by the invention, the correction effect of the fisheye camera in shadow correction can be improved.

A standard attachment for a standard earpiece insertable into an ear canal in a direction of insertion, by which, compared to customary attachments, an improved adaptation of the corresponding standard earpiece to an ear canal is achieved, and therefore improved audio perception, and also improved wearing comfort of the respective hearing aid is ensured. The standard attachment contains a headpiece at one end and, adjoining the latter, a wing portion. The outer contour of the headpiece is configured to allow the headpiece to bear on the wall of the ear canal at several points or on several lines.

The invention relates to a titanium alloy mounting ring and molybdenum grid welding tool and an electron beam welding technology. The welding tool comprises a base, an annular base plate, an upper pressing ring and a plurality of pressing sleeves. The annular base plate is fixed to the upper end face of the base. A plurality of pressing blocks used for clamping a molybdenum grid are distributed in the inner circumferential face of the upper pressing ring at intervals. The pressing sleeves which are the same as the pressing blocks in number and correspond to the pressing blocks in position are distributed in the portion, along the circumference of the upper pressing ring, of the base, and comprise brackets and pressing bolts. The brackets are fixedly arranged on the base, and the head ends of the pressing bolts can penetrate through screw holes in the brackets and tightly jack the pressing blocks correspondingly. According to the titanium alloy mounting ring and molybdenum grid welding tool and the electron beam welding technology, a titanium alloy mounting ring and the molybdenum grid are welded through the electron beam welding technique with concentrated energy density and small heat input, the connecting quality and size precision between the mounting ring and the molybdenum grid can be ensured, the bonding strength between the mounting ring and the molybdenum grid is improved, the service lives of the mounting ring and the molybdenum grid can be obviously prolonged, and the weight of a whole aviation component can be obviously reduced.

The invention provides a wheelchair curling motion state detection and target tracking system, and belongs to the technical field of special devices for sports. The system comprises: a motion state detection device, an image acquisition device and a central control computer which is respectively connected with the two devices, wherein the central control computer comprises a curling motion state resolving module, a curling motion state data display module, a curling motion state data storage module and a curling motion video image processing module. The curling motion video image processing module comprises a curling motion track prediction sub-module, a target tracking sub-module, an ice rink reconstruction sub-module and a curling motion track reproduction sub-module. The influence of shielding on curling target tracking can be effectively prevented, the calculation time is shortened, and a scientific and effective training means and a replaying method are provided for wheelchair curling athletes and coaches in the training and competition process.

The invention discloses a specific vehicle intersection priority radar detection method and a system thereof. The method includes the following process that: the vehicle-mounted host machine of a vehicle sends distance measurement signals to a roadside host machine, performs vehicle distance and vehicle speed calculation, and sends a first data packet to the roadside host unit; after receiving thefirst data packet sent by the vehicle-mounted host machine, the roadside host machine correspondingly sends an induction data packet to the vehicle-mounted host machine; and the roadside host machineperforms vehicle distance calculation, and sends a vehicle-to-vehicle cooperative data packet containing distance measurement information to the vehicle-mounted host machine. The specific vehicle intersection priority radar detection method and the system thereof of the invention is compatible with a communication function when realizing the real-time positioning of the vehicle; the specific vehicle intersection priority radar detection method and the system thereof of the invention can improve the travel efficiency of people, exert a maximum effect, and save a lot of costs for the work and later maintenance of a system; and the method and the system of the invention are not affected by occlusion situations above a road and are easy to maintain in later stages.

The invention discloses a backlight module and display equipment. The backlight module comprises a back plate, a light bar, a supporting structure and a reflecting part, the back plate comprises a bottom plate and a side plate, the side plate is connected with the bottom plate, and a flange is formed; the light bar is arranged on the bottom plate, and the projection of at least part of the light bar on the bottom plate does not coincide with the projection of the flange on the bottom plate; the supporting structure is arranged on the side, away from the bottom plate, of the turned-over edge, extends to the position above the lamp strip and is used for supporting the display panel. The reflecting piece is connected to the side, facing the lamp strip, of the supporting structure. The part, where the projection of the light bar on the bottom plate does not coincide with the projection of the flanging on the bottom plate, is defined as an exposed part, and at least part of the reflecting piece is arranged above the exposed part. According to the technical scheme, the reflecting part, the supporting structure and the light bar are free of more interference in the installation process, and therefore automation can be conveniently achieved in the assembly process of the whole backlight module.

The invention discloses an inertial positioning method for real estate field measurement. The method comprises: by acquiring and storing the static measurement process data of a point with a known position and a to-be-measured point, performing twice initial alignment , further performing two-way time strapdown calculation of ongoing dynamic measurement process data, carrying out position fusion on the basis of inverse strapdown calculation of the position information, and obtaining the coordinate of the to-be-measured point; for the to-be-measured point which cannot be vertically aligned with the measurement center of an inertial positioning device, transmitting the measuring basis located at the cabinet center to the cabinet edge so as to finish the measurement. By means of the invention, the positioning error of the to-be-measured point which is caused by the inertial positioning device is well modified, the measurement precision is improved, and it is possible to measure the to-be-measured point which cannot be vertically aligned with the measurement center of the inertial positioning device.

The invention discloses a novel traffic signal lamp, and relates to the technical field of signal lamps. The novel traffic signal lamp comprises a fixed box, a circuit box is fixedly connected to the rear side of the inner wall of the fixed box, a shielding cover is fixedly connected to the front side of the outer wall of the fixed box, a signal lamp is arranged on the front side of the circuit box, and a cleaning mechanism is arranged on the outer side of the signal lamp. A drainage channel is arranged between the inner wall of the fixing box and the outer wall of the circuit box, a drainage pipe is arranged on the lower side of the fixing box, and the upper side of the drainage pipe communicates with the interior of the fixing box. According to the novel traffic signal lamp, when the novel traffic signal lamp is used, rainwater flows downwards through a gap between a fixed box and a circuit box, so that a rotary glass cover rotates, and meanwhile, the fixed box is lifted up, and a brush can clean the surface of the rotary glass cover; and the surface of the rotating glass cover is cleaned under the condition that the influence on the surface of the rotating glass cover is minimum.

The invention discloses a learning table capable of carrying out three-dimensional posture correction and a method for three-dimensional posture correction. The learning table comprises a table and achair, wherein a tracking device for detecting a sitting posture of a human body and a positioning device used for detecting position information of the chair are arranged on the table; and the chairis a six-degree-of-freedom seat which at least comprises a first detection point, a second detection point and a third detection point. According to the method, a bending angle of a human skeleton isobtained through Kinect, the influence of ambient illumination conditions and shielding is avoided to the greatest extent, and whether the human body belongs to the wrong sitting posture is accuratelydetermined; a situation that the correct posture cannot be reached after the sitting posture of the human body is adjusted can be discovered timely, and the relative position of the chair can be adjusted in combination with the ultrasonic positioning device and the assorted six-degree-of-freedom chair, so that the chair quickly returns to the correct height difference and distance, and thus the most comfortable learning environment of the human body is ensured.

The invention discloses a GPS / SINS (Global Positioning System / Strapdown Inertial Navigation System) based town cadastre map control point rapid measuring and off line data processing method, which comprises the steps of: distributing map control points in a region with unstable GPS signals by using GPS / SINS town cadastre map control point measuring equipment according to first net information, obtaining initial information of the work of the GPS / SINS town cadastre map control point measuring equipment by using the known control points and the special transposition operation through the GPS / SINS town cadastre map control point measuring equipment to form a navigation positioning coordinate system; obtaining coordinates of the map control points in a hiding region by using the GPS / SINS towncadastre map control point measuring equipment in a process of distributing the map control points; and integrating stored measured data of an inertia core part in the external operation with the GPSinformation by using off line data processing software, realizing high-precision positioning of the map control points in the region with unstable GPS signals and evaluating the positioning precision. The invention can favorably improve the efficiency of distributing the map control points and the positioning precision.

The invention discloses a fan lamp with a good lighting effect. The fan lamp comprises a fixed seat, a telescopic rod, a rear cover and a fan body, wherein the fan body sequentially comprises a rear net cover, a surrounding frame, a ring cover, a front net cover and an end cover from top to bottom; the fan lamp further comprises a rotating shaft, fan blades fixedly arranged on the rotating shaft,a main motor arranged in the rear cover and capable of driving the rotating shaft to rotate; a plurality of mounting screw holes are uniformly distributed in the outer side wall of the surrounding frame; and a lamp holder structure is fixedly arranged on the mounting screw holes; and the fan lamp further comprises a luminous body, wherein the luminous body is embedded in the lamp holder structurein a clamping connection mode and capable of rotating and adjusting the lighting angle by 360 degrees. The fan lamp integrates various functions of a fan, illumination, air purification, health care and the like and has a simple structure, reasonable design, unique shape and various functions, the luminous body is arranged outside the fan body and can adjust the illumination angle by 360 degrees,the illumination effect is good, the flexibility is high, the structural design and light distribution mode are novel and unique, the practicability is high, installation and disassembly are convenient and quick, and the later maintenance is simple.

A standard attachment for a standard earpiece insertable into an ear canal in a direction of insertion, by which, compared to customary attachments, an improved adaptation of the corresponding standard earpiece to an ear canal is achieved, and therefore improved audio perception, and also improved wearing comfort of the respective hearing aid is ensured. The standard attachment contains a headpiece at one end and, adjoining the latter, a wing portion. The outer contour of the headpiece is configured to allow the headpiece to bear on the wall of the ear canal at several points or on several lines.

The invention provides an autonomous separation universal controlled projectile body for a 40mm rocket launcher. A control cabin, an electric steering engine, a guidance guiding or receiving assembly,an autonomous separation mechanism and a foldable skirt tail mechanism are additionally arranged; the control cabin, the electric steering engine and the autonomous separation mechanism are connectedin sequence and located on a super-caliber cabin section, and the super-caliber cabin section is fixedly connected with the projectile body located in the rocket launcher through the autonomous separation mechanism; the guidance guiding or receiving assembly is located in the autonomous separation mechanism, the foldable skirt tail mechanism is installed at the front end of the autonomous separation mechanism, and the foldable skirt tail mechanism is limited by the autonomous separation mechanism to be in a folded state before the projectile body is launched; after the projectile body is launched, the super-caliber cabin section is separated from the projectile body located in the rocket launcher through the autonomous separation mechanism, the guidance guiding or receiving assembly is exposed, and the foldable skirt tail mechanism is unfolded; and the control cabin completes calculation and generates a control instruction to drive the electric steering engine so as to control the controlled projectile body to fly. According to the autonomous separation universal controlled projectile body for the 40mm rocket launcher provided by the invention, the shielding influence of a rear-section projectile body structure on a guidance signal in the subsequent flight process of a guided missile can be avoided.

The invention relates to the technical field of engineering surveying equipment and especially relates to a total station device and a detection method. The total station device comprises an operation device and a reflecting prism device, wherein the operation device comprises a handle, a shell, an observation device, a triangular base and a base plate; the handle, the shell, the triangular base and the base plate are successively arranged from top to bottom; the handle is in rotating connection with the shell; the shell is fixedly connected with the triangular base; the triangular base is in rotating connection with the base plate; the observation device comprises an objective lens; a focusing ring is arranged on the outer side of the objective lens; the focusing ring is in driving connection with the objective lens; an observation lens is arranged under the objective lens; a diagonal eyepiece is arranged at the lower end of the observation lens; the diagonal eyepiece is detachably connected with the observation lens. The whole device has a simple structure, is convenient in operation and can realize accurate measurement for the interlayer spacing of high-rise buildings, especially ultrahigh-rise buildings.

An ear piece for use by an individual having an external auditory canal includes an earpiece housing configured for placement at, on or within the external auditory canal of the individual, a processor disposed within the ear piece housing, at least one microphone disposed at the earpiece housing wherein the at least one earpiece is positioned to detect ambient environmental sound, and at least one speaker disposed within the earpiece housing at a position to direct sound towards a tympanic membrane of the individual. The ear piece is configured to detect ambient environmental sound proximate the external auditory canal of the individual using the at least one microphone and reproduce the ambient environmental sound at the at least one speaker within the earpiece housing. The ear piece may include a spectrometer for detecting ambient environmental lighting. The earpiece may include a number of biological sensors. The ear piece may include a magnetic induction electrical conduction electromagnetic field transceiver for linking the device to personal area networks or other devices.

The present invention provides a non-contact remote optical fiber displacement measurement device and a machine measurement method thereof. The device comprises a photoelectric demodulation module, a transmitting optical cable, a receiving optical cable and a sensing lens. The sensing lens comprises a transmitting lens, a receiving lens, and a reflecting mirror facing the above lenses, wherein the transmitting lens and the receiving lens are arranged in parallel. The transmitting optical cable and the receiving optical cable are respectively and correspondingly connected with the transmitting lens and the receiving lens. The reflecting mirror is used for reflecting the light emitted from the transmitting lens to the rear surface of a target object. The scattered light is reflected by the reflecting mirror to shoot back to the receiving lens. According to the technical scheme of the invention, the positions of each of all the above lenses and a target plane in the sensing lens are set, and each lens is correspondingly connected with the transmitting optical cable, the receiving optical cable and the photoelectric demodulation module. The transmission of optical signals is realized through the optical cables, and an obtained optical fiber phase change amount is effectively deducted by the isolation method. Therefore, the influence of the surface reflection of optical elements on the signal light is avoided, while only the phase change between the lenses and the target plane in optical fibers is calculated to obtain a displacement change amount. Therefore, not only the debris shielding effect in an optical path is avoided, but also the long-distance low-loss transmission and anti-electromagnetic interference effect is realized. The obtained displacement information is high in reliability.

The invention discloses a semiconductor structure forming method. The method comprises the following steps of providing a semiconductor substrate; forming a fin part on the semiconductor substrate surface; forming an isolating layer on the surface of the semiconductor substrate; forming a gate dielectric layer on the surfaces of the fin part and the isolating layer; forming a gate electrode stretching across the fin part on a part of the gate dielectric layer surface; forming a side wall material layer on the gate dielectric layer and the gate electrode surface; performing first-angle plasma etching on the side wall material layer to remove the side wall material layer on the side wall located on one side of the fin part; performing second-angle plasma etching on the side wall material layer to remove the side wall material layer on the side wall located on the other side of the fin part and the remaining side wall material layer on the gate dielectric layer; and forming a side wall located on the gate electrode side wall surface. By means of the above-mentioned method, the side wall is formed on the gate electrode side wall while the side wall material layer on the fin part side wall surface is removed. The performance of a formed fin type field effect transistor is improved.

The invention provides a liquid distribution structure with a shielding avoiding effect and a heat exchanger. The liquid distribution structure comprises a liquid distribution pipe; a heat exchange tube is arranged in the heat exchanger, and the liquid distribution pipe is annularly arranged above the heat exchange tube. According to the liquid distribution structure with the shielding avoiding effect and the heat exchanger, a liquid distribution disc structure in the prior art is replaced with the annular liquid distribution pipe, so that shielding of gaseous refrigerants is reduced under thecondition that the liquid distribution effect the same as that of the liquid distribution disc structure is guaranteed, and the heat exchange performance of the heat exchanger is guaranteed; and meanwhile, spraying holes are formed, the distribution area of the heat exchange tubes can be increased, the problem that a plurality of heat exchange dead zones exist due to the small distribution area of the heat exchange tubes in the prior art is effectively solved, shielding of a liquid distributor to the heat exchange tubes is reduced, limitation of the liquid distributor to the layout of the heat exchange tubes is reduced, the structure of the liquid distributor is simplified, occupied space is small, no liquid distribution dead angle exists, and the space utilization rate of the heat exchanger is improved.

The present invention relates to a system for improving a user's hearing and more particularly to a receiver system used in the system. In one embodiment, the receiver system has a housing and a plurality of arms extending from the housing for positioning and suspending the receiver within the ear canal of a user. Each of the arms may be formed from a flexible, plastic material or a bendable wire. In a second embodiment, the receiver system is surrounded by a disc formed from a sound filtering material. When installed in a combination instrument, the receiver is separated from the microphone.

The invention discloses a light-emitting backboard and a manufacturing method thereof. The method comprises the following steps: providing a substrate; a plurality of light-emitting structures are formed on the substrate, each light-emitting structure comprises a light-emitting part and a first surface active layer covering the light-emitting part, and the side, away from the light-emitting part, of the first surface active layer is provided with a first surface; a reflective film is formed on the substrate and comprises a reflective material layer and a second surface active layer covering the reflective material layer, the side, away from the reflective material layer, of the second surface active layer is provided with a second surface, the reflective film is formed between the adjacent light-emitting structures, and the hydrophilic-hydrophobic property of the second surface is opposite to the hydrophilic-hydrophobic property of the first surface; the first surface active layer and the second surface active layer are separated between the light-emitting part and the light-reflecting material layer; and curing the reflective film to form a reflective layer located between the adjacent light-emitting parts on the substrate, the reflective layer being spaced from the plurality of light-emitting parts. According to the invention, the coverage precision and thickness uniformity of the reflective layer can be improved.

The invention discloses a solar photovoltaic power device which comprises a lifting device, a rotating device, an inverter, a controller, a rotating device and a solar panel. Rollers are arranged at the four corners of the bottom of the lifting device, an L-shaped connecting plate is arranged at the top of the lifting device, and an L-shaped connecting plate is arranged at the bottom of the inverter. A plurality of connecting holes are formed in the L-shaped connecting plate, a groove is formed in the bottom of the inverter, and a through groove is formed on the side surface of the groove. A connecting plate is arranged in the groove, a plug pin is arranged on the lower end face of the connecting plate, and the first buckling pieces and the T-shaped sliding grooves are formed at the four corners of the top of the inverter and the four corners of the top of the controller respectively. A supporting rod and a second buckling piece are arranged at the bottom of the rotating device and thebottom of the controller, the pulley is rotationally connected to the supporting rod, and a solar panel is fixed to the rotating device. The solar photovoltaic power device is convenient to assembleand disassemble, and the light receiving angle of the solar panel can be freely adjusted.

The invention relates to a multilayer water seal device with a top cover. The device comprises at least two layers of water seals, a water seal box, and a top cover, wherein the two layers of the water seals form a sealed connection, and the water seal box is connected with a drain pipe. At least the upper layer water seal of the two water seals is a bell jar type water seal, the position of the bell jar type water seal is flushed with or higher than the position of the lower layer water seal, and the immersion depth of the bell jar type water seal is lower than the immersion depth of the lower layer water seal. The top cover is arranged above the upper layer water seal. The water seal box is provided with at least one layer of a ring groove, wherein the ring groove is around the outer part of the drain pipe, the ring groove is arranged into an inner layer ring groove and an outer layer ring groove, and the position of the outer layer ring groove is higher than the position of the inner layer ring groove. At least one layer of the bell jar type water seal is correspondingly placed on a layer of the ring groove corresponding to the position of the bell jar type water seal. With the technical scheme of the present invention, the blocking effect for prevention of water current impact can be provided, the overtopping and the tight shut caused by pressing can be prevented when exceeding the immersion depth; the process is simple, and is easy to perform, and is suitable for the mass production.

The invention discloses a medical adjustable lip stretching device, which comprises an annular base plate, an outer ring body and an inner ring body are concentrically fixed on the base plate, the outer ring body is located at the outer ring of the base plate, and the The diameter of the inner ring body is equal to the average value of the diameters of the inner and outer rings of the substrate. The inner ring of the outer ring body is provided with an outer groove, and the outer ring of the inner ring body is provided with an inner groove. The outer groove and the inner groove are in common A plurality of movable blocks are slidably connected, and each of the movable blocks is fixedly connected with a plastic rod parallel to the axis of the substrate. The advantage is that: in the present invention, the soft capsule stretches the patient's lips, and the pressure on each position of the patient's oral cavity is equal, thereby reducing discomfort. The shape of the slider cannot continue to change, but in the present invention, some structures such as rubber heads are provided, which fully guarantees that the extrusion force of the soft capsule to each point is equal.