1645results about How to "Achieve output" patented technology

The invention discloses a system and method for processing an unmanned aerial vehicle polling image. The system comprises an unmanned aerial vehicle polling image processing system body which comprises a human-computer interaction module. After the human-computer interaction module obtains a user instruction, a main control panel analyzes the user instruction and transmits the analyzed instruction to a data receiving and transmitting controller, the data receiving and transmitting controller sends a parameter configuration instruction to corresponding peripheral equipment according to the instruction and transmits an instruction execution result back to the main control panel, and the main control panel processes the execution result of the parameter configuration instruction and then sends processed information to the human-computer interaction module so that the information can be displayed to a user. The main control panel is respectively communicated with a secondary controller, a power supply module, a wireless communication module, a data storage module, a locating module, a distance measuring meter and a height gauge. The system and the method improve the automation degree and the informationization degree of polling image processing, improve the efficiency of searching for and processing the polling result, and lower the cost of processing the polling result.

The invention relates to a GOA (Gate Driver on Array) circuit. The GOA circuit includes a plurality of cascaded GOA units, wherein n is set as a natural number, and the nth level of GOA unit in charge of outputting the nth level of horizontal scanning signal includes a pull up unit (10), a pull up control unit (20), a download unit (30), a pull down unit (40), a pull down maintenance unit (50) and a bootstrap capacitor (Cbt); the pull up unit (10) is connected with the nth level of horizontal scanning signal output end (G(n)), the first node (Q), the second node (K) and the first clock signal (CLKB); and the pull up control unit (20) is connected with the first node (Q), the second node (K), the third node (N), and the second clock signal (CLK), the current-level level-transmission signal output end (Cout(n)), and the previous-level level-transmission signal output end (Cout(n-1)) or a start pulse (STV). The GOA circuit can effectively solve the Q point potential maintenance problem, and can realize broad pulse GOA signal output.

The invention relates to the technical field of storage, in particular to an NVMe (Non-Volatile Memory Express) data read-write method and NVMe equipment. The method comprises the following steps that: a transceiver receives an NVMe command which is written into an SQ (Submission Queue) by a host; when the SQ control module detects that the SQ changes in an SQ cache, the NVMe command in the SQ issent to an SSD (Solid State Drives) controller; the SSD controller executes the NVMe command and writes the generated NVMe command response into a CQ (Completion Queue) through a CQ control module; and the SSD controller notifies the host to read the CQ through trigger interruption to enable the host to process the NVMe command response in the CQ. Since the SQ and the CQ are both positioned in theNVMe equipment, the CPU (Central Processing Unit) can directly read the NVMe response command in the CQ or directly writes the NVMe command into the SQ so as to further lower the consumption of CPU resources. In addition, a way designed by the NVMe equipment can support CCIX (Cache Coherent Interconncet for Acceleration) on hardware, and therefore, the heterogeneous calculation of software memoryunification and an I / O operation can be realized.

The invention provides a GOA circuit applied to an In Cell type touch display panel. In a black screen period, a thirteenth N-type thin film transistor is controlled to be connected through a first global signal, all grades of scanning driving signals rise to high potential at the same time, a twelfth N-type thin film transistor is controlled to be connected through the first global signal to lower the potential of a second node, meanwhile, the potential of a first node is lowered, and the All Gate On function is prevented from failing. The second node is reset through a reset signal and a fourteenth N-type thin film transistor, and normal output is achieved after a black screen is awakened. In an intermediate stopping period, negative potential is set to be a pulse signal with the amplitude, the phase and the frequency the same as those of a touch signal, a fifteenth N-type thin film transistor is controlled to be connected through a second global control signal to output the negative potential in a pulse form, and crosstalk between the touch signal and a scanning output end is reduced.

The invention provides an intelligent waste cellphone battery recycling device. The intelligent waste cellphone battery recycling device comprises a battery recycling box and a control system, a battery inlet is arranged on the right side of the middle of the front side of a box body, a coin outlet is arranged on the left side of the middle of the front side of the box body, a liquid crystal display is arranged on the upper side of the front side of the box body, a loudspeaker is arranged on the left side of the liquid crystal display, indicating lamps are arranged below the liquid crystal display, a battery collecting device is arranged on the lower side of the interior of the box body, a battery voltage detecting device is arranged between the battery inlet and the battery collecting device, and a coin output mechanism is arranged on the right side of the upper portion of the box body and connected with the coin outlet. By the battery collecting device, the coin output mechanism and a control system are integrated. Waste cellphone battery recycling is realized by means of incentive measures, the intelligent waste cellphone battery recycling device is simple in structure, high in practicability, intelligent and humanized, and a new idea for large-scale recycling of cellphone batteries is provided.

The invention discloses a fundus scanning imaging device which is used for fundus examination of a human eye medically. A human eye fundus image is obtained through a confocal scanning technology to judge the fundus pathology and focus. The fundus scanning imaging device adopts laser as a lighting source. A scanning galvanometer achieves two-dimensional scanning of the human eye fundus. A high-sensitivity photodiode is used for detecting light signals returned from the human eye fundus, the collected signals are subjected to signal conversion and image reconstruction to obtain a large-view-field high-resolution fundus retina video image. The fundus scanning imaging device adopts a single galvanometer to replace a traditional orthogonal double-galvanometer module and acquires high-frame-frequency video image outputting through low galvanometer scanning frequency. A single detector is adopted, and a motor is utilized to switch an optical filter to achieve an FFA and ICGA fluorescent radiography function. Two kinds of retina images of light sources with different wavelengths can be utilized to combine a pseudo color image by synchronously controlling the image collection sequence, and two functions of video and camera shooting can be achieved simultaneously.

The invention discloses a large-torque magnetic suspension flywheel, which can be used as an execution mechanism for attitude stabilization and attitude maneuver of spacecrafts such as a satellite, an earth observation platform and the like. The magnetic suspension flywheel mainly consists of a base, a sealing cover, a radial decoupling conical magnetic bearing assembly, a core shaft, a rotor assembly, a Lorentz force magnetic bearing assembly, a motor assembly, a sensor assembly and the like. The core shaft is positioned in the center of the wheel body, a stator assembly is positioned at theradial outer side of the core shaft, the rotor assembly is arranged at the radial outer side of the stator assembly, the rotor assembly consists of a wheel flange and a wheel hub, and the Lorentz force magnetic bearing assembly consists of a magnetic bearing stator part and a magnetic bearing rotor part; an adapter plate is connected with the core shaft, the stator assembly and a motor stator; and the sensor assembly consists of a sensor shell and a sensor. The components of the flywheel are arranged reasonably and compactly, the flywheel can be used for attitude stabilization of the spacecraft, and attitude maneuver of the spacecraft can be realized by using large control torque provided by gyroscopic effect of the magnetic suspension flywheel.

The invention discloses an N-type injection infrared wavelength-to-visible wavelength upconversion device and a manufacturing device thereof. An inverted organic light emitting diode (OLED) is epitaxially grown on an inorganic infrared detector on the lower part. According to a work principle of the device, the infrared detector unit which is reversely biased converts the input infrared signal to an electrical signal, and photoinduced electrons sequentially flow through an N-type spacing layer and a light limiting metal layer and are injected into the OLED which is biased forward, and the OLED is driven to emit visible light, so that the infrared light-to-visible light upconversion can be realized. The provided N-type injection infrared wavelength-to-visible wavelength upconversion device has the characteristics of high conversion efficiency, wide conversion wavelength range, simple manufacturing process, low cost and the like and can be used for fields of infrared night vision, medical detection, industrial fault detection and the like.

The invention relates to an organic Rankin cycle and heat pump cycle coupling system. The organic Rankin cycle and heat pump cycle coupling system comprises an organic Rankin cycle unit and a heat pump cycle unit, which are coupled. The organic Rankin cycle unit and the heat pump cycle unit share the same evaporator and are coupled by the same. During operation, cycle working medium and recovered low-temperature waste heat exchanges heat in the evaporator and are divided into two parts of gaseous working medium, one part enters an expansion machine to be involved in organic Rankin cycle, and the other part enters a compressor to be involved in heat pump cycle. The power of the expansion machine superiorly drives the compressor coaxially connected with the expansion machine, output of high-temperature heat energy of the heat pump cycle is realized, the rest power drives a generator to generate power and heat and power are supplied at the same time. Compared with the prior art, the organic Rankin cycle and heat pump cycle coupling system is energy saving and environment friendly, low-grade waste heat can be effectively recycled and utilized at high temperature, consumption of electric energy or fossil energy is reduced, heat and power can be supplied together, and greenhouse effect and air pollution are reduced.

The invention relates to an automatic bamboo breaking machine. The automatic bamboo breaking machine comprises a feeding device, a clamping and positioning device, a bamboo breaking pushing disk device, a tool rotating disk device, an output device and a control system. The feeding device and the clamping and positioning device are located on the two sides of one end of the bamboo breaking pushing disk device. The tool rotating disk device is located on the front part of the end, close to the feeding device and the clamping and positioning device, of the bamboo breaking pushing disk device, and the output device is located on the tail part of the tool rotating disk device. The control system controls the feeding device, the clamping and positioning device, the bamboo breaking pushing disk device, the tool rotating disk device and the output device to run in a cooperative manner. The automatic bamboo breaking machine has the beneficial effects that the bamboo breaking machine can accurately control cooperative running of the devices, a bamboo tube is conveyed and positioned reliably, the bamboo tube can be accurately cut into bamboo canes, the finally cut bamboo canes can be conveyed out, the automation degree is relatively high, and the production efficiency is improved.

The invention provides a vehicle multimedia interactive terminal for achieving multiscreen interaction through a creative embedded software and hardware architecture. Man-machine interface capacity is widened for the architecture in hardware, so that a plurality of display, speech, touch and key interfaces are supported; and the traditional embedded operation system is reconstructed on software through a virtual machine technique or a multi-window application framework technique, so that multi-user and multi-window independent task response is supported. Through utilizing the novel embedded architecture, a plurality of touch and key independent operations and a plurality of speech inputs as well as a plurality of screen independent displays and a plurality of sound independent outputs are achieved on an automobile, so that different requirements of a driver and a plurality of passengers in the automobile are satisfied, wherein the screen independent displays and the sound independent outputs correspond to the touch and key independent operations and the speech inputs one to one. By using a unified processing core and shared system resources, on one hand, communication requirements among a plurality of clients are reduced to facilitate the system realization, on the other hand, the system cost is saved and the system is improved.

A dynamic blood glucose data acquiring device and a host are provided, wherein the collecting device comprises a portable host and a probe assembly; the probe assembly includes two glucolase micro electrode needles and a first circuit board; a first electrode terminal is provided on the first circuit board; the host includes an outer shell and a second circuit board which is located in the outer shell, and a second electrode terminal is provided on the second circuit board; the outer shell further includes a probe mounting position and a fixing structure; the probe assembly is mounted into the probe mounting position in such a way that the glucolase micro electrode needles are projected out of a lower surface of the outer shell; when the probe assembly is mounted into the probe mounting position, the first electrode terminal is electrically connected to the second electrode terminal.

The invention relates to a ground wall transition robot imitating a wall lizard, which adopts a manner of crawling on all fours and consists of a mechanical part and a circuit part. The mechanical part comprises a body and four legs, is divided into two parts in a completely symmetric manner with interchangeability; the two parts are connected by sliding part; each joint is driven by steering engine; the position of paw is designed into a damping joint, which provides a fixed position for the paw joint when suspending, and angles can be adjusted according to the condition of the wall surface when adsorbing, so as to adapt to varied conditions of the wall surface; the robot realizes the ground wall transition in a transitional walking manner, and the ground wall transition can be realized by the combined of the pitching action of the body and the change of the foothold position of a single foot; the motion control of the robot adopts a master-slave control structure, wherein, a host computer takes charge of the algorithm operation relevant to the gait planning of the robot, and meanwhile sends out orders to a slave computer at certain frequency, then the slave computer receives the orders of the host computer and makes corresponding responses, thus completing the output of the control information of the driver and sending relevant operation state information of the robot back to the host computer; the host computer and the slave computer are communicated by a 232 serial port.

The invention discloses a heterojunction piezoelectric type nano generator and a manufacturing method thereof. The heterojunction piezoelectric type nano generator comprises a semiconductor nano rod array, a semiconductor nano groove array, a conducting substrate, a packaging layer and leading wires, wherein the semiconductor nano rod array is vertically arranged on the conducting substrate whichis used as a lower electrode of the generator; the semiconductor nano groove array and the semiconductor nano rod array form a nested structure; the semiconductor nano groove array serves as an upperelectrode of the generator; the upper electrode and the lower electrode of the generator are led by different leading wires; and the packaging layer is arranged on the periphery of the semiconductor nano groove array and the semiconductor nano rod array. The invention also discloses a manufacturing method for the heterojunction piezoelectric type nano generator. The heterojunction piezoelectric type nano generator is simple and compact in structure, relatively longer in service life, simple in manufacturing process and low in manufacturing cost.

The method relates to a soft tissue deformation simulation method. The soft tissue deformation simulation method includes the following steps: a biomechanics model of soft tissue is built, and mass points in the biomechanics model are initialized; force feedback equipment exerts action force on the soft tissue to carry out collision detection; motion state information is calculated in an improved Euler algorithm; the state of each time step of the model is output to a display screen, and the deformation process of the soft tissue is displayed in a dynamic mode; feedback force is calculated, and touch feedback is output. By means of the steps, real-time performance, precision and smoothness of the feedback force in virtual operation simulation can be effectively achieved, precision and real-time performance of soft tissue deformation simulation are improved, and accordingly requirements of virtual operation simulation are met.

The invention relates to a nano self-power-generation bionic flapping-wing air vehicle. The nano self-power-generation bionic flapping-wing air vehicle comprises nano self-power-generation bionic wings, a nano self-power-generation bionic tail wing, an intelligent controller, rechargeable batteries, sensors, a global positioning system, a signal receiving and transmitting device and a fuselage, wherein each of the nano self-power-generation bionic wings and the nano self-power-generation bionic tail wing comprises multi-joint driving rods; the multi-joint driving rods comprise wing arm front edge multi-joint driving rods, wing arm central pivot multi-joint driving rods and tail multi-joint driving rods; the multi-joint driving rods comprise joint drivers; each joint driver comprises a micro motor, a brake connection part and a pressure sensor module; the nano self-power-generation bionic wings, the nano self-power-generation bionic tail wing, the rechargeable batteries, the sensors, the global positioning system and the signal receiving and transmitting device are all connected with the intelligent controller. The nano self-power-generation bionic flapping-wing air vehicle has extremely important and wide application prospects in both civil and military fields.

The invention discloses a real-time monitoring method for growth characters of tea trees in intensive cultivation. The method comprises the following steps: performing real-time data acquisition by a tea tree living body growth character data acquisition device based on online location, transmitting the acquired data to an artificial comprehensive management center through a wireless communication way to process, wherein the acquired data comprises current location data acquired by a locating mechanism, fresh tea leaves spectrum data acquired by a high spectrum imaging sensor, and average growth height of fresh tea leaves measured by an ultrasonic wave sensor, and judging the best fresh tea leaf picking time based on that the data and a picking judgment model established off line are combined by the artificial comprehensive management center. The picking judgment model comprises a bud size growth measurement model based on average growth height, a yield correlation model and a quality correlation model based on the high spectrum image data. The real-time monitoring method for the growth characters of the tea trees in intensive cultivation is beneficial to realizing of intensive cultivation and automation in planting of the tea trees.

The invention provides a liquid crystal display device including a first back-light source, a second back-light source and a liquid crystal panel. The first back-light source provides carmine back light and the second back-light source provides the green back light. The first and second back-light sources are periodically alternatively drived to provide the back light display image. The liquid crystal panel includes a liquid crystal layer and a color filter. A plurality of liquid crystal molecules in the liquid crystal layer are controlled for adjusting the penetration of the back light generated by the first and second back-light sources. The color filter includes a plurality of red pixel area, a plurality of transparent pixel area and a plurality of green pixel area for performing the colorful filtering treatment for the back light penetrating the liquid crystal layer.

The response ability to the transient change of the load is an important indicator of the LDO performance of the low dropout voltage regulator. The present invention learns from the loop control method of the charge pump type phase-locked loop, discloses a low output voltage fast response LDO structure based on the current control loop, the feedback voltage is converted into current, and the current signal is used as the carrier in the control loop. Operation, the difference current is integrated by the loop filter to form the control voltage of the power tube. Low-dropout regulators based on current control loops respond well to load transients and can produce voltage outputs lower than typical bandgap reference voltages. The fast-response LDO circuit based on the current control loop disclosed by the invention is composed of a voltage buffer, a transconductance amplifier, a loop filter, a power tube and an off-chip load.

The invention discloses a shift register, a gate driving circuit and a display panel. The shift register comprises a pull-up module, a pull-down module, a reset module, a first control module, a second control module and an output module. By adopting the pull-up module, the pull-down module, the reset module, the first control module, the second control module and the output module, normal output of scanning signals can be realized. The output module of the shift register comprises two output ends which are connected with two adjacent gate lines, thus, one shift register disclosed by the invention can correspond to two gate lines, and the effect of inputting the scanning signals to the two adjacent gate lines by means of one shift register can be further realized. Compared with the situation that one shift register corresponds to one gate line in the prior art, the number of the shift registers can be reduced by half in the invention, thereby reducing the area occupied by the gate driving circuit on the display panel, saving the manufacturing cost and facilitating the implementation of the narrow-bezel design of the display panel.

The invention discloses a rotary friction generator capable of outputting constant current, which comprises at least one first sub friction piece and at least one second friction piece, wherein the surfaces of the first sub friction piece and the second sub friction piece are provided with a first sub electrode and a second sub electrode respectively; the tail ends of the first sub friction piece and the second sub friction piece are provided with a first conductive component and a second conductive component respectively; the other surface of the first sub friction piece can carry out friction sliding with a constant speed in a clockwise or anti-clockwise direction relative to the other surface of the second sub friction piece. The rotary friction generator enables the two friction pieces to always keep contact friction through constant-speed circumferential motion, thereby generating inductive charge, driving flow of electrons in an external circuit, and realizing output of constant current through using the conductive component as a commutator. The rotary friction generator is simple in structure, convenient to realize and low in cost, can be used for providing power for an electronic device continuously and stably, and can also be used for providing power for a capacitor continuously and stably, and has very good social and economic benefits.

The invention discloses a computer-system-based online handwriting authentication method, which comprises the following steps of: writing and submitting a plurality of groups of registered handwritings through handwriting input equipment by a user, storing the two-dimensional static character pattern position information of display handwritings corresponding to the registered handwritings into a database, and finishing handwriting registration according to the conventional online handwriting authentication method; in the test of a computer system, submitting a generated identification number by the user, randomly selecting a plurality of registered handwritings from the registered handwritings submitted by a corresponding user in a registration stage, and displaying the two-dimensional static character pattern position information of the display handwritings of the selected registered handwritings to the user; and submitting a corresponding test handwriting set at a time within a specified time by the user, finishing test handwriting authentication according to the computer-system-based online handwriting authentication method, and comprehensively making a decision to finish the authentication of the user. The method has the advantages of replay attack resistance, difficulty in the attack of an imitator and active defense; and the neglected shortcomings of dependence on handwriting confidentiality and high imitation rate neglected by the conventional online handwriting authentication method are effectively overcome.

A method for inputting Chinese character by computer includes dividing received phonetic alphabet string as per syllable, forming simple-spelled character string by picking up first letter of each syllable, seeking out all total-spelled character string corresponding to said simple-spelled character string in preset mapping table of simple-spelled character string to total-spelled character string and outputting candidate word corresponding to said all total-spelled character string.

The invention provides a THz wave radiation source with an oval groove grating structure. The oval groove grating with periodicity is adopted as a beam-wave interaction structure of the radiation source. When an electron beam passes through the structure at a certain speed, the electron beam and surface slow waves interact to be clustered and generate an electron beam cluster, then Smith-Purcell coherent radiation is stimulated, radiation is collected through a flat plate or a curved mirror (metal or medium) to generate tunable, compact and high-power THz waves, and therefore the THz wave radiation source can be easily applied to communication, radars, electronic countermeasures, electromagnetic weapons, astronomy, medical imaging, nondestructive detection, safety inspection and other aspects.

The present invention discloses a shale oil and gas integration output analysis method based on a dynamic leakage flow volume. The method comprises: arranging and preparing data; preliminarily estimating a limit leakage flow volume and effective fracture half-length, and calculating a dynamic leakage flow volume, a reservoir average pressure change and pressure correction factors; drawing an output normalization pseudopressure curve, calculating a fluid diffusion coefficient in a fracture reconstruction area, drawing a square root time characteristic curve, calculating the effective fracture half-length, and determining the limit leakage flow volume and the final output degree according to the correction Duong method; if the effective fracture half-length and the limit leakage flow volume calculation value are very different from an input value, substituting the calculation value into the step 2 again to perform circulation until the convergence is consistent so as to obtain the accurate effective fracture half-length and the limit leakage flow volume; substituting a dynamic leakage flow volume formula into a macroscopic material balance model, and performing comparison to obtain the accumulation contribution of the size of the fracture reconstruction area to the shale oil and gas production; and determining an optimal fracture horizontal well fracture interval and an optimal well spacing. The shale oil and gas output dynamic analysis and evaluation accuracy is improved.

The invention provides a cascade type time-interval variable-order multi-level static converter, which can be modularized; a previous-stage four-way isolation DC-DC (Direct-Current-Direct-Current) converter (1) is connected to a subsequent-stage four-unit cascade inverter (2); a novel time-interval variable-order multi-level control circuit (3) is connected between the previous stage and the subsequent stage; the converter is characterized in that the previous stage is adopted with four ways of mutually independent, staggered and parallel double-tube forward direct-current converters; the subsequent stage is a cascade structure composed of four single-phase H bridges; a carrier phase-shifting frequency-doubling SPWM (Sinusoidal Pulse Width Modulation) technology is adopted; the time-interval variable-order multi-level control circuit is connected between the previous stage and the subsequent stage; the previous stage of the static converter is beneficial to reducing input current ripple and reducing the volume of a filter; the subsequent stage is low in voltage stress of a power switch device, high in circuit modularization degree and low in loss; and, by means of the time-interval variable-order multi-level control circuit, on the premise of not increasing the number of independent sources of the previous stage, the more level number of output can be realized, and the THD (Total Harmonic Distortion) of the harmonic wave is low.

The invention discloses an antenna device and an antenna array. The main content is that the antenna device includes three antenna oscillators fixed onto a supporting part, wherein a vertical distance between the radiation center of each antenna oscillator fixed onto the supporting part and a mirroring reflection ground plate is 1 / 5[lambda] to 2[lambda]; any two antenna oscillators fixed onto the supporting part mutually intersect at right angles; and an angle value of an included angle formed by a polarization direction and a horizontal direction of any different antenna oscillator is identical. Each antenna oscillator is connected with a feed network board through a core wire of a coaxial cable. The feed network board is used for independently adjusting amplitude and phase of a transceiving signal on each antenna oscillator. The three-polarization antenna device is applied to a communication network built by using MIMO technology, is convenient for address site selection and installation, and can help to improve the covering capability of network signals, raise broadband data service processing level and increase spectrum resource utilization rate.

The invention discloses a current internal-model decoupling controller of an open-winding permanent-magnet synchronous motor. A common three-phase permanent-magnet synchronous motor stator winding is subjected to circuit opening, so that six end leads are led out and respectively correspondingly connected with a first inverter and a second inverter; only one direct-current power supply supplies power for the current internal-model decoupling controller of an open-winding permanent-magnet synchronous motor, so that after a, b and c-phase sampling currents ia, ib and ic of a motor stator winding pass through the current internal-model decoupling controller, a d-axis modulation voltage u*d and a q-axis modulation voltage u*q are obtained, and then the motor is controlled by using a voltage space vector pulse-width modulation strategy. The open-winding permanent-magnet synchronous motor enables the harmonic content of an output voltage to be reduced under a lower switching frequency, and under the condition that the space is small and the battery capacity is limited and under the limitation of the voltage / current capacity of a power switch device, the total power and loading capacity of a system can be enhanced. On the basis of keeping the structure advantages of the novel motor, the influence on the system caused by mismatch errors arising from system parameters is reduced, the robustness of the system is improved, and the controller is easy to adjust.

A Mach-Zehnder optical switch structure based on coupling of double resonant cavities comprises a pair of input waveguides, a front coupler, a rear coupler, a pair of output waveguides and a pair of optical resonant cavities, wherein the input end of the front coupler is connected with the input waveguides and is used for dividing a path of light into two paths of light, and the two paths of light enter an upper interference arm and a lower interference arm respectively; the rear coupler combines the two paths of light into one path of light to be coupled into a certain optical waveguide of the input waveguides; one end of each output waveguide is connected with the output end of the rear coupler; the two ends of the upper interference arm and the two ends of the lower interference arm are connected with the front coupler and the rear coupler respectively; the optical resonant cavities are coupled with the upper interference arm and the lower interference arm respectively. According to the Mach-Zehnder optical switch structure, the advantage of drastic phase changes of wave lengths near resonance points is utilized, the two-arm interference characteristic of the Mach-Zehnder interference structure is combined, the refractive index of one resonant cavity only needs to be changed, and light signals are output from different ports.

The invention provides a device for obtaining camera posture data. The device comprises a global positioning system, an acceleration sensor, a gyroscope and a core processor, wherein the global positioning system is used for obtaining the longitude and latitude of the camera position and the time; the acceleration sensor is used for measuring the speed of camera motion and the position of a camera in cooperation with the global positioning system; the gyroscope is used for measuring the direction of camera motion, a shooting angle and the rotation angular speed of the camera in cooperation with the global positioning system; the core processor is used for reading data of the global positioning system and data of each sensor corresponding to each frame of video, based on frame synchronizing pulse, further performing fusion and filtering treatment on the data to obtain position and posture data of the camera, and then outputting the position and posture data. The invention also discloses a method for obtaining camera posture data. The camera provided in the invention not only can shoot video and acquire voice, but also can obtain information on state, time and location of video shooting of the camera, which facilitates reproduction of the shooting scene in future.