85results about How to "Reduce the size of the module" patented technology

The invention relates to a wavelength-selective optical switch which comprises a polarization conversion part, an attenuation reflectance part, a wavelength channel opening and closing unit and a reflecting mirror driving part. The polarization conversion part is arranged between an light inputting / outputting part and an light dividing part; the attenuation reflectance part comprises one-dimensional MEMS (micro-electronic-mechanical) reflecting mirror arrays, is arranged on the surface of the output end of the light dividing part and used for reflecting a part of wavelength channel irradiated in by the light dividing part; the wavelength channel opening and closing unit comprises a liquid crystal assembly and is used for controlling the opening and the closing of the wavelength channel; the liquid crystal assembly is arranged between the MEM reflecting mirror arrays; and the reflecting mirror driving part is used for setting the angels of the reflecting surfaces of MEMS reflecting mirrors in the attenuation reflectance part and outputting the light of each wavelength channel to a set output port. The wavelength-selective optical switch adopts a liquid crystal unit array and the one-dimensional MEMS reflecting mirror arrays to realize the optical path switching and attenuating and the non-interference switching function.

The invention discloses a satellite-borne embedded software module on-orbit updating method, and relates to the technical field of computers. An existing satellite-borne embedded software on-orbit updating method has the problems that the number of codes is large, the injection speed is low, the injection efficiency is low and universality is poor. The satellite-borne embedded software module on-orbit updating method comprises the steps that 1 target files of software modules are generated; 2 the target files are uploaded to a satellite-borne computer; 3 the target files of the software modules to be updated of the satellite-borne computer are renamed as backup files, and every time the satellite-borne computer successfully receives a packet of data, the newly received data are stored into a temporary file, the temporary file is renamed as the target file of the corresponding module and stored into a program storage; 4 satellite-born embedded software is started again, the target files of the software module except for the backup files are loaded into a data storage again to run, and on-orbit updating of the satellite-borne embedded software modules is realized. The satellite-borne embedded software module on-orbit updating method is based on an embedded operation system, the dynamic module loading technology is adopted and changing of a large number of software parameters is supported.

The invention discloses a laser projection display system based on a full-semiconductor laser. The laser projection display system comprises a laser light source module, a light path module, a circuit module and an optical sensor module, wherein the laser light source module is used for providing three required lasers, namely red laser, blue laser and green laser, for the projection display system; the light path module is used for performing light unification and imaging processing on light provided by the laser light source module, making the light illuminated on chips, transmitting the light modulated by the chips to a projection lens, and forming an image for output; the circuit module is used for regulating the chips in the light path module according to external audio and video signals and regulating the power of the three lasers in the laser light source module according to a certain algorithm and a conditioning signal generated by an optical sensor; and the optical sensor module is used for detecting the brightness of an external environment and the brightness of an image output by the system, forming a conditioning signal according to a certain algorithm and transmitting the conditioning signal to the circuit module. By the laser projection display system, manual or automatic regulation of the color gamut and the brightness is realized.

The invention discloses a direct current breaker bridge type module. The direct current breaker bridge type module comprises an IGBT (insulated gate bipolar translator) press fitting unit, a capacitor bank, a stack bus bar, a control unit, an energy supply unit and a support frame, wherein the capacitor bank is electrically connected with the IGBT press fitting unit through the stack bus bar, the capacitor bank is connected with the control unit and the energy supply unit, and the IGBT press fitting unit, the capacitor bank, the stack bus bar, the control unit and the energy supply unit are located on the support frame. By adopting the technical scheme, bursting hidden dangers of a traditional welded module under a failure state are eliminated, the integration level of the direct current breaker bridge type module is greatly improved, the overall size of the direct current breaker bridge type module is reduced, a voltage peak of the direct current breaker bridge type module is effectively reduced when a large current is cut off, and simultaneously a large heat radiating area is further provided to the control unit.

This invention relates to a current control device of a simplified LED module including: a current control circuit, a first transistor and a current limiting protection circuit, in which, the current control circuit includes a first resistor generating a first current signal to regulate the radiation power of at least one LED, the first transistor controls the operation of the LED with the help of the first current signal and generates a second current signal, and a second transistor in the current-limiting protection circuit can decide open or close of channels based on the second current signal and the second resistor to further control said first current signal, in this way, the module can control the radiation power by the current control circuit and protect it with the help of current limit of the protection circuit.

The invention discloses a rotating shaft torque measurement method and a system based on wireless technology. The method comprises the following steps: 1) collecting a voltage analog signal; 2) performing amplification, filtering and analog-to-digital conversion on the voltage analog signal to obtain a voltage digital signal; 3) transmitting the voltage digital signal to an upper computer througha Bluetooth data transmitting module, and obtaining a torque value of the rotating shaft after being processed by the upper computer; 4) the required power is supplied by wireless power supply. The system comprises a strain gauge torque sensor, an integrated circuit board, an upper computer and a wireless power supply device. The wireless power supply device comprises a power receiving component and a power transmitting component; the upper computer is provided with a Bluetooth data receiving module; the integrated circuit board is integrally provided with a power module, a strain signal processing module, a data processing module, and a Bluetooth data transmitting module. According to the rotating shaft torque measurement method and the system based on wireless technology, the torque measurement accuracy of the rotating shaft is improved by the combined application of wireless power supply and Bluetooth data transmission.

The invention provides a modular intelligent helmet and belongs to wearable devices in industrial plant areas. The modular intelligent helmet includes a helmet shell, an infrared module, a display module, a talkback module, an alarm module, a camera module, a battery module, a charging module, an illumination module, a voltage detection module, a positioning module and a control module; the helmetshell serves as an installation carrier for all the modules above, other modules are installed on the inner and outer sides of a helmet body, partial modules are detachably installed, and more convenience is provided for use. Moreover, an inner cover is also arranged in the helmet body and covered with an electromagnetic shielding layer capable of effectively preventing electromagnetic radiationgenerated by electronic devices from damaging the human body. The functions of the whole helmet are diversified, and the helmet is modular and detachable and can be flexibly deployed and combined freely. The structure is firm, waterproof and anti-collision, and therefore the helmet is not only safe but also intelligent and has a wider application domain.

The invention discloses a stimulating module for testing the universal performance of a serial interface. A system on chip (SOC) is used for controlling the generation of a Baud rate and providing a signal source for forming a serial communication signal; a common-mode signal generating module is used for converting two paths of digital to analogue (D / A) output signals on the SOC to generate a common-mode signal; a different-mode signal generating and amplitude controlling module is used for converting a single-ended signal output by an SOC serial port into a different-mode signal and controlling the amplitude of the different-mode signal; a different-mode signal and common-mode signal superposition module is used for superposing the common-mode signal and the different-mode signal generated by the common-mode signal generating module and the different-mode signal generating and amplitude controlling module so as to obtain an amplitude-adjustable serial communication signal; and a serial protocol chip is used for receiving a corresponding signal for the SOC. The simulating module is SOC technology-based and consists of circuits, such as the SOC, a gate circuit, an operational amplifier, a digitally controlled potentiometer and the like, and programming and offset adjustment, programming of signal amplitude and programming of word format can be realized.

The invention belongs to the technical field of electromechanical control in a high-pressure marine environment, and particularly relates to a position indicator for marine equipment. The position indicator comprises a power supply circuit, a water pressure switch, a single chip microcomputer, a GPS and iridium satellite positioning communication module, and an antenna, wherein the power supply circuit is connected with a battery, the water pressure switch, the single chip microcomputer, the GPS and iridium satellite positioning communication module and the antenna are connected in sequence, and the power supply circuit is connected with the single chip microcomputer and the GPS and iridium satellite positioning communication module. The position indicating method comprises the following steps: when a contact in a switching assembly of the water pressure switch is closed, the single chip microcomputer is brought into a working state, and the GPS and iridium satellite positioning communication module is started to work, and whether GPS information is effective or not is judged; if GPS position information deviates from the last position information by more than 10 meters, the GPS information is judged as effective, and the GPS position information is sent; and if the GPS position information does not deviate from the last position information by more than 10 meters, the GPS information is judged as ineffective, and the last detected position information is used as effective information of positioning and does not need to be resent. The position indicator is not in electrical connection with marine environment to which the position indicator is attached, so that interference to the marine equipment is avoided, and the influence of power failure of the main system of the marine equipment to the work of the position indicator system is avoided.

The invention relates to a Beidou GPS dual-mode positioning method, positioning terminal and positioning system. The method comprises steps of receiving satellite positioning data information, and according to the satellite positioning data information, reading a second pseudo range between the Beidou GPS dual-mode positioning terminal and a positioning satellite; receiving a difference factor broadcast by a base station and correcting the second pseudo range according to the difference factor so as to obtain a second real range between the Beidou GPS dual-mode positioning terminal and the positioning satellite; and according to the second real range and the satellite positioning data information, calculating the precise coordinate of the Beidou GPS dual-mode positioning terminal, thereby finishing positioning. According to the invention, according to the difference between a measurement position and an actual position between the base station and the positioning satellite, the difference factor is generated, and according to the difference factor, the measurement position of the Beidou GPS dual-mode positioning terminal is acquired and corrected, so the precise position of the Beidou GPS dual-mode positioning terminal is obtained, and the high precision positioning of the position is achieved.

In a light source apparatus, a method of manufacturing the light source and a backlight assembly having the same, a light guide plate (LGP) includes an upper surface and a lower surface facing each other and a first side surface and a second side surface. The light source is placed in the LGP adjacent to the first side surface and emits light toward the second side surface. The power supply unit is electrically connected to the light source and partially placed in the LGP. The light source may include a lamp or a light-emitting diode (LED). The power supply unit may include a wire or a power supply substrate. The light source apparatus may be formed by an injection molding process using lower and upper mold frames. Therefore, backlight assembly size, the number of parts and manufacturing steps may be decreased, and the illumination quality may be improved.

The invention provides a small-size, high-sensitivity and high signal-to-noise ratio MEMS (Micro-electromechanical Systems) silicon microphone. The MEMS silicon microphone comprises a metal housing cover, an MEMS device, an ASIC (Application Specific Integrated Circuit) device and a PCB. The MEMS silicon microphone is characterized in that a voice input hole is arranged in the metal housing cover; the MEMS device is adhered to the inner side of the metal housing cover through insulating glue; a cavity is formed in one surface of the MEMS device and abutted with the voice input hole; the PCB is a three-layer PCB; a groove is arranged in the PCB and opposite to the cavity by the position; the groove is positioned at the back of the cavity; the ASIC device is arranged at the central bottom part of the groove; a gap is formed between the top part of the ASIC device and the lower part of a vibration film of the MEMS device, so as to reach the packaging manner that the MEMS silicon microphone is vertically inversely mounted and voice is input from the front. The small-size, high-sensitivity and high signal-to-noise ratio MEMS silicon microphone is high in sensitivity and signal-to-noise ratio; the capacity of a module is reduced; the demand on high circuit integration is met.

The invention provides a wet type electric defogging device. A water pipe supporting beam, an anode bent and big and small beams are arranged in a tower body. Anode pipes are arranged on the anode bent, cathode wires are hoisted on the big and small beams, and a defogging layer is flatly laid on a supporting beam. Backflushing water pipes are arranged on the water pipe supporting beam and provided with nozzles. The wet type electric defogging device is reasonable in structure, no special strict requirements for the project environment and fan models exist, the number of abandoned parts is small, and electric energy is saved; emission of smoke treated by the wet type electric defogging device meets or is even far higher than the national standard; the service life ranges from 5 to 10 years; the size of single modules is small, disassembling is easy, maintenance is convenient, the operation power is small, and energy loss is low; and economic indicators, such as the defogging device, supporting facilities and later project operation maintenance, of the wet type electric defogging device are all superior to those of traditional dust collectors.

The invention relates to a dual-circuit chopping-wave and voltage-regulating power electronic module. The power electronic module comprises a voltage-regulating signal interface circuit used for receiving two paths of voltage signals, a PWM control circuit used for outputting two paths of PWM control signals, a driving circuit used for outputting four paths of PWM driving signals, a dual-circuit synchronous rectifying BUCK circuit used for outputting two paths of high-frequency chopping-wave PWM voltages, and a voltage and current sampling circuit used for collecting two paths of high-frequency chopping-wave PWM output voltage signals. The power electronic module adopts two-circuit PWM independent control and two-circuit chopping-wave and voltage-regulating circuit integration; the average output voltage is controlled by adjusting duty ratio; the rotary speeds of a vehicle-mounted air conditioner evaporation fan and a condensation fan are regulated flexibly; and in addition, the power electronic module is small in size, compact in structure, efficient, convenient to install, and capable of promoting resource optimization configuration of a vehicle-mounted system.

The invention provides a space gesture control device based on machine vision. The space gesture control device comprises a main control module, a data acquisition module, a data processing module anda communication module, wherein the four modules are integrated and modularized, the control device is built based on an embedded platform, the main control module and the data processing module share a main control chip on a main board of the control device, and the communication module is integrated on the main board; the main control module controls the operation of other modules and monitorsthe operation state of the other modules in real time; the data acquisition module captures a hand image of a user through the monocular camera and transmits the hand image to the data processing module; the data processing module analyzes to obtain a control command and transmits the control command to the communication module, and the communication module sends the control command to controlledequipment; the device is accurate in gesture recognition and smooth in operation. The module is small in size, low in cost, high in integration degree and high in modularization degree, can be independently used for central control of a hardware system, can also be integrated in an overall platform, and is easy to build and maintain.

The invention relates to the technical field of optical devices, in particular to an aspheric high-definition front wide-angle lens which is used for a 2-megapixel camera module of a mobile phone. The aspheric high-definition front wide-angle lens is of a structure with a front diaphragm and three aspheric plastic lenses, is in a special aspheric combination design, and accordingly has the advantages of small module size, wide field angles, high product yield, good imaging effect and low cost.

The invention discloses a stator-free brushless dual-rotor outer ring permanent magnet synchronous motor with a rotating controller. An outer rotor comprises an outer rotary shaft, the inner end of the outer rotary shaft is arranged in an enclosure, permanent magnets are arranged at the inner end of the outer rotary shaft in a staggered manner along the circumferential direction, an end cover is arranged at the end part of the inner end of the outer rotary shaft, and the outer end of the outer rotary shaft extends out of a first end of the enclosure; an inner rotor comprises an inner rotary shaft, the inner end of the inner rotary shaft is arranged in the outer rotor, an inner rotor core and an inner rotor winding embedded in the inner rotor core are arranged at the inner end of the inner rotary shaft, the outer end of the inner rotary shaft is arranged on the exterior of the outer rotor, and the end part of the outer end of the inner rotary shaft extends out of a second end of the enclosure; and an inverter is arranged at the outer end of the inner rotary shaft in the enclosure, close to the end part of the inner end of the outer rotary shaft, an inductor structure is arranged at the outer end of the inner rotary shaft in the enclosure, close to the second end of the enclosure, and a rectifier is arranged between the inverter and the inductor structure. The stator-free brushless dual-rotor outer ring permanent magnet synchronous motor with the rotating controller is simple in structure, breaks through the limitation of only one rotary shaft, omits the stator part and is applicable to various occasions.

The invention discloses a vehicle-mounted remote terminal supporting multi-network sharing. The vehicle-mounted remote terminal is composed of a microprocessor module, a 4G wireless communication module, a BD / GPS positioning module, a WiFi module, a Bluetooth module, a radio module, an NFC chip, a six-axis sensor, a battery and management module, a data memory, a mobile TV module, a CAN transceiver, a CAN controller, a voice output / input module, an indicator light, an interface circuit and a button module. The microprocessor serving as a data and information processing core is connected with all sub modules and controls function calling of all sub modules. The battery and management module consists of a built-in battery and a management module; the built-in battery is used for ensuring normal working of the vehicle-mounted terminal when power of the vehicle is interrupted; and when the vehicle is started normally, the power of the vehicle-mounted terminal is provided by a vehicle engine. The CAN transceiver and CAN controller are used for realizing communication between the intelligent vehicle-mounted terminal and the whole vehicle network.

The present invention mainly comprises light signal transceiving component and circuit board. The optical fibre connection end disposed via one side of the light signal transceiving component is connected with optical fibre, a filtering plate is utilized to generate deffection for light signal issued by the optical fibre for it being into input end then the light signal is converted to be electric signal transmitted to the circuit board through photoelectric converting unit. With the same principle as above, the electric signal can be converted to be the light signal which is transmitted to the optical fibre so action of transmitting and receiving light signal can be selected at the same time by setting on optical fibre at an optical connection end.

The invention relates to a vehicle-mounted high voltage insulation detection device which comprises an MCU unit, a high voltage insulation detection circuit, a high voltage diagnostic circuit and an isolating CAN unit, wherein the isolating CAN unit, the high voltage insulation detection circuit and the high voltage diagnostic circuit are connected to the MCU unit; the high voltage insulation detection circuit is connected to two ends of the to-be-detected battery pack; the high voltage diagnostic circuit is connected to two ends of a to-be-detected high voltage apparatus; and the MCU unit collects the voltages of the to-be-detected battery pack and / or the to-be-detected high voltage apparatus and the voltages are transmitted to a BMS master control unit through the isolating CAN unit.

The invention discloses a radar beam forming system, which comprises a plurality of first optical wave combining / dividing devices, a plurality of groups of optical time delay components and a second optical wave combining / dividing device, and is characterized in that one end of each group of optical time delay components is connected with one first optical wave combining / dividing device, and the other end of each group of optical time delay components is connected with the second optical wave combining / dividing device; and each group of optical time delay assemblies comprises an optical dispersion time delay assembly and an optical transmission time delay assembly, the optical dispersion time delay assembly comprises a plurality of dispersion time delay devices and optical switches which are arranged at intervals, and the optical transmission time delay assembly comprises a plurality of transmission time delay devices and optical switches which are arranged at intervals. According to the method, on the premise that the functionality of the radar is kept unchanged, the number of devices, the module size, the power consumption, the cost budget and the like are greatly reduced, and the larger the array plane scale is, the larger the reduction amplitude is.

The automatic vehicle bumper includes front electronic inductor, back electronic inductor, real-time current processor, time relay, contactor, braking motor, braking force transferring line, and power source. The front electronic inductor and the back electronic inductor are connected to the real-time current processor and the time relay; the contactor is connected to the braking motor; and the braking motor pulls via the braking force transferring line the pedal to brake. The automatic vehicle bumper has small size, sufficient control sensitivity, raised reliability and controllable braking time, and can avoid collision accident to both fixed and movable bodies including in foggy day and weak lighting. The present invention is suitable for various kinds of motor vehicle with accumulator.

The invention provides a module topology which is applied to a modular multilever converter (MMC) type flexible direct current transmission system and has improved power density. The module topology comprises four insulated gate bipolar translators (IGBTs) VT1, VT2, VT3 and VT4, wherein the four IGBTs are respectively and reversely connected in parallel with diodes VD1, VD2, VD3 and VD4; a direct-current capacitor C is input or removed by controlling the switch-on or switch-off of the two IGBTs VT1 and VT2 in a first H half-bridge structure so as to generate a required alternating-current voltage; and an extra LC circuit is controlled by the two IGBTs VT3 and VT4 in a second H half-bridge structure to absorb a fundamental frequency on the direct-current capacitor and the frequency fluctuation of a second harmonic frequency, so that the frequency fluctuation is reduced, the capacitance and the volume of the direct-current capacitor are reduced. The capacitance of the direct-current capacitor can be reduced through the introduction of an auxiliary circuit, thus, the module volume is reduced, and the power density is improved.

The invention relates to a wavelength selecting optical blocker. The wavelength selecting optical blocker comprises a light polarization transformation assembly arranged between a light input / output assembly and a condensation / polarization lens assembly; a light splitting assembly arranged between the condensation / polarization lens assembly and a wavelength channel control assembly and used for spatially separating different wavelengths of incident light signals. The wavelength channel control assembly is composed of two rows of one-dimensional liquid crystal arrays, arranged on the end face of a polarization light transposing assembly and used for controlling the opening, attenuation and closing of wavelength channels; and the polarization light transposing assembly is used for making the incident polarized light deviate to a certain degree and outputting the light from each wavelength channel to set output ports. By means of a liquid crystal unit array, dual-light-path selective wavelength blocking and attenuation functions are realized.

The invention discloses a wireless general module circuit for a smart home, comprising a microprogrammed control unit (MCU) master control chip, an external input and output (I / O) control circuit, a clock oscillation circuit, a power filter circuit and a radio frequency (RF) transceiver chip circuit, which are all connected with the MCU master control chip. The RF transceiver chip circuit is connected with a high frequency resonance transceiving matching output circuit and a base frequency oscillation circuit. The MCU master control chip and the RF transceiver chip can program to control RF and external trigger. The wireless general module circuit is encapsulated by a module chip element, has low cost and high performance, allows the module volume to be small and exquisite so as to be applied to smart home products with high requirement on volume and power consumption, and is more convenient for flexible design of products. The wireless general module circuit has complete functions, can save more power, has a small volume, low cost, good stability, high transmission speed and long transmission distance, has higher use value and economic value, and makes link and communication between smart homes and between the smart home and a webmaster and smart cloud and control thereof more convenient.

The invention discloses a stacking structure and method for chips with central bonding points, and the structure effectively solves the lowest assembly problem of the chips with the central bonding points in an insulating glue stacking mode, enables the assembly density of a module to be greater than or equal to 200%, and reduces the size of the module. Due to the fact that the stacking mode can be compatible with processes such as bare chip welding, chip bonding, pressure welding and packaging, the method can solve the problem of stacking of chips with center bonding points, the chips can beeffectively integrated in a high-density mode, model selection of the chips with module function integration of the same function is richer, and the method is an effective integration method for system integration.

The present invention discloses a high frequency high voltage transformer module, comprising: a transformer and a rectifying filter; wherein the transformer comprises: a U-shaped magnetic core, a transformer skeleton, a primary winding and a secondary winding; the transformer skeleton comprises: two hollow inner skeletons and two outer skeletons; the two inner skeletons respectively wrap two vertical portions of the U-shaped magnetic core; the two outer skeletons respectively wrap two inner skeletons; the two inner skeletons are respectively wound with primary windings; the two outer skeletonsare respectively wound with secondary windings; the secondary winding is connected to the rectifying filter. The high-frequency high-voltage transformer module of the transformer module has small volume, small distributed capacitance and low loss.

The invention relates to the technical field of an optical device, and especially relates to a photographic lens. By utilizing a structure of a front-placed aperture stop and four aspheric surface plastic lenses, and through a special aspheric surface combination design, the photographic lens has the advantages of small pixel unit, small module size, short total lens length, high product yield, good imaging effect, and low cost.

The invention provides an automatic detection system for a rail vehicle air conditioner. The system comprises a measuring unit, a network coordinator and an upper computer, wherein the measuring unitcomprises a measuring body and a shell; the shell is used for protecting the measuring body, and the part of the measuring body is arranged outside the shell and is in direct contact with the air; andthe measuring body is in wireless signal connection with the network coordinator, and the network coordinator is in signal connection with the upper computer. The automatic detection system for the rail vehicle air conditioner solves the problems that a wired transmission system is large in occupied space and inconvenient to use and cannot meet the requirements for enclosed space testing.