35results about How to "Save hardware space" patented technology

The invention discloses a face identification method, a face identification device and a mobile terminal, and belongs to the field of identification of biological features. The face identification method comprises the following steps of acquiring a visible light face image set through a double-light-ray induction camera according to a preset acquisition rule; acquiring an infrared face image set through the double-light-ray induction camera according to the preset acquisition rule; judging whether a face template image matched with any one of face images in the visible light face image set and the infrared face image set exists on a home terminal; and when the face template image exists on the home terminal, passing through the face identification. According to the face identification method, due to the face identification by the double-light-ray induction camera, face image acquisition and face identification can be realized under different environment light ray conditions, and the accuracy of face identification is improved; and furthermore, the mobile terminal does not need to be provided with a plurality of cameras, so that the hardware space is saved, the performance-to-cost ratio is improved, and a user can carry and operate the mobile terminal conveniently.

The invention discloses an electric device with a hidden antenna comprising a metal frame, a substrate, an upper casing and a lower casing, wherein the upper casing, the metal frame and the lower casing form a cavity to store the substrate. The lower surface of the metal frame has a groove, wherein the hemline of the groove has a feed-in end, and both sides of the groove form a first short circuit end and a second short circuit which electrically connects to a metal surface of the substrate. Thereby, the metal frame uses the first short circuit end and the second short circuit end and feed-inend to form a half wave cycle antenna. Thus the electric device can use the metal frame to receive and transmit an electromagnetism signal.

The invention relates to the field of mobile communication, and provides a multi-frequency antenna for a mobile terminal. The multi-frequency antenna comprises a metal floor, a first antenna loop and at least one second antenna loop. The embodiment of the invention further provides electronic equipment. According to the multi-frequency antenna, sharing utilization of an optimal radiator is achieved through a plurality of antenna loops; the hardware space is saved; meanwhile, the problem that a plurality of frequencies cannot coexist when an antenna switch is adopted is solved; the multi-band compatibility is achieved; and a good radiation effect is reached.

A display device having an on-screen display (OSD) menu function is provided, which includes a touch display panel, a touch screen controller, a display circuit, and a multiplexer. The touch display panel includes a display layer and a touch layer. The touch screen controller detects the touch layer and outputs a first detection result. The display circuit displays a first image of a first image source on the display layer, and the display circuit has the OSD menu function. In a normal display mode, the multiplexer transmits the first detection result of the touch screen controller to the first image source. If the first detection result complies with a predetermined pattern, the OSD menu function of the display circuit is triggered, and the display circuit enters a screen adjustment mode, and the multiplexer transmits the first detection result of the touch screen controller to the display circuit.

The system and method capable of performing pinyin romanization-phonetic notation conversion of polyphones is used in mutual conversion between simplified font Chinese character pinyin romanization and complex font Chinese character phonetic notation. By means of the "Chinese character pinyin romanization-phonetic notation conversion table" of the present invention and in the internal conversion data base mode, several conversion functions, such as Chinese character pinyin romanization-phonetic notation conversion and Chinese character-phonetic notation conversion, may be realized by only providing one Chinese character data base with phonetic marks. The key of the present invention is its polyphone processing method based on the "Chinese character pinyin romanization-phonetic notation conversion table".

The invention relates to a wearable vital sign monitoring device. A laser light source of the wearable vital sign monitoring device is used for emitting laser to a sensing optical fiber; two ends of the sensing optical fiber are respectively connected with a laser light source and a photoelectric conversion module; the sensing optical fiber is bent after bearing the pressure of pulse or breathingor heartbeat movement of a human body, and a laser signal transmitted in the sensing optical fiber is lost at a bent part and is modulated based on a bending loss principle; the photoelectric conversion module is used for converting the modulation signal of the laser bending loss output by the sensing optical fiber into an electric signal representing the pulse or breathing or heartbeat movement of the human body; and a vital sign signal extraction module is used for extracting the corresponding human body pulse or breath or heartbeat frequency from the electric signal representing the human body pulse or breath or heartbeat movement. According to the invention, the vital sign information of the human body can be accurately monitored in real time.

The invention discloses a safety control system of an intelligent air conditioner. The safety control system comprises an indoor unit and an outdoor unit. The indoor unit is provided with an indoor main control board. The outdoor unit is provided with an outdoor main control board and a variable frequency board. The variable frequency board is provided with an IGBT module driving unit and a communication unit of the outdoor main control board. The outdoor main control board comprises a power circuit connected with an electric supply. The power circuit comprises a bridge rectifier circuit composed of a triode and a diode, a single-chip microcomputer, a capacitance program control voltage reducing circuit and a switch circuit. The switch circuit comprises two sets of switches, wherein the first set of switches are connected with the output end of the bridge rectifier circuit, the second sets of switches are connected with the output end of a capacitor C2 and the output end of the triode Q4, and the two sets of program control synchronous switches are not closed at the same time. The safety control system improves the power factor of the electric supply and saves more electric energy.

The invention relates to a current source stabilizing circuit which is used for stabilizing a current value output by a current source under the condition that temperature is changed. The current value of the current source can rise with the rising of temperature. The current source stabilizing circuit comprises a current source circuit used for providing current which rises with the rising of temperature, a correction circuit which is coupled with the current source circuit and used for providing input current which rises with the rising of temperature; wherein, the current of the current source circuit becomes the current of the current source after being subtracted by the input current; the current of the current source does not change with the temperature. The current source stabilizing circuit can effectively save cost and the space of hardware.

The invention provides a method and a system for driving the rotation of a stepping motor. The method comprises the steps that a total number N of the times of acceleration needed by the stepping motor from starting to constant-speed running is set, and time tn needed for the nth time of acceleration is set, wherein n is an integer, 1<=n <= N, and simultaneously, tn< tn-1; the stepping motor is driven according to the total number N and the time tn needed for each time of acceleration; and when the number of the times of acceleration is equal to the total number N, the motor is driven to run at a constant speed. When the control method is adopted to drive the stepping motor, only acceleration and constant-speed processes are included, so that the control process is simple; in addition, the total number N of the times of acceleration and the time tn needed for each time of acceleration are respectively adjustable, so that the stability of the running of the stepping motor is facilitated, and that is to say, the stepping motor is enabled to stably and rapidly to rotate to a constant-speed period.

The invention relates to a current source stabilizing method which is used for stabilizing a current value output by a current source when temperature is changed. The current value of the current source can rise with the rising of temperature. The method comprises the steps: a correction circuit is provided; the output current of the circuit rises with the rising of temperature; the coefficient of the current rising with the rising of temperature is equal to the coefficient of the current source rising with the rising of temperature; a connection method is provided, which causes the current value of the current source to be subtracted by the output current before being output; wherein, the current value of the current source does not change with the temperature during output after being subtracted by the output current. The current source stabilizing method can effectively save cost and the space of hardware.

The invention discloses a wireless communication apparatus, comprising a shell, a base plate and an antenna, wherein, a first guide hole is arranged on the edge of the base plate, and the antenna includes a body part. Herein, the antenna utilizes the body part to receive or transmit an electromagnetism signal. On the other hand, the body part of the antenna can penetrate through the first guide hole and be locked in the shell, so the base plate can be fixed in the shell.

A portable electronic device includes a battery, a metal element, a control circuit and a plurality of impedance elements. The battery is disposed in a carrier. The metal element receives a feeding signal through a feeding point to generate at least one radio-frequency signal. An orthogonal projection of the metal element on the carrier is overlapped with an orthogonal projection of the battery on the carrier. The control circuit is configured to control the battery so that a plurality of operation signals are transmitted between the battery and the control circuit. The plurality of impedance elements are electrically connected between the battery and the control circuit, and the plurality of impedance elements transmit the plurality of operation signals and block the at least one radio-frequency signal.

The invention discloses a millimeter wave short-range target detection method based on composite frequency modulation continuous waves. The method is high in efficiency and good in real-time performance. The method comprises the following steps: (10) millimeter-wave radar signal transmission: constructing frequency-modulated continuous waves of four target waveforms, and transmitting the frequency-modulated continuous waves as millimeter-wave radar transmission signals; (20) echo signal frequency mixing and filtering: carrying out frequency mixing, sampling and filtering on echo signals and the transmitted signals; (30) difference frequency signal spectrum peak value detection: performing fast Fourier transform and peak value detection on discrete signals, and obtaining echo difference frequency signal peak value frequency corresponding to each segment of target waveform through peak value search; and (40) composite waveform target detection: synthesizing the echo difference frequency signal peak frequency corresponding to each segment of target waveform to obtain a combined target distance velocity matrix, a velocity matrix and a distance matrix; removing false targets in the combined target distance velocity matrix; removing false targets in the combined target distance velocity matrix; and obtaining distance and speed information of a real target.

The invention provides a dipole type antenna which comprises a first radiating body and a second radiating body, wherein the first radiating body comprises a first radiating arm and a first extending arm, and the second radiating body comprises a second radiating arm and a second extending arm. During entity configuration, the first extending arm and the second extending arm are not mutually adjacent, and the first radiating arm and the second radiating arm are mutually parallel.

The embodiment of the invention provides a self-adaptive integrated modular platform based on a next-generation train. The self-adaptive integrated modular platform comprises a first subrack, whereinthe first subrack comprises a plurality of computer main boards; each computer main board is provided with a time-sensitive network TSN network card; the computer main boards are connected with one another through the TSN switch; a train subsystem is arranged in each computer main board; and the train subsystems communicate with each other by using a TSN network protocol. According to the adaptiveintegrated modular platform based on the next-generation train provided by the embodiment of the invention, the hardware space is reduced, the system safety and the expansion capability are improved,the full life cycle cost is reduced, and the adaptive integrated modularization of a train computer platform is achieved through the shared network, the shared host / IO, the shared information and theshared service.

The invention discloses a frequency conversion smoke exhaust ventilator. The frequency conversion smoke exhaust ventilator comprises a main control circuit board and a frequency conversion circuit board; the frequency conversion smoke exhaust ventilator also comprises a low-voltage power supply circuit for supplying power for the main control circuit board and the frequency conversion circuit board; the low-voltage power supply circuit comprises a bridge type rectifying circuit, a single chip microcomputer, a capacitive program-controlled voltage-reduction circuit and a switch circuit; the bridge type rectifying circuit comprises triodes Q1 and Q3 and diodes D2 and D3; the capacitive program-controlled voltage-reduction circuit comprises capacitors C2, C3 and C4 and triodes Q4 and Q5; the switch circuit comprises two groups of program-controlled synchronous switches; the first group switches are connected with the output end of the bridge type rectifying circuit; the second group switches are connected with the output ends of the capacitor C2 and the triode Q4; and the two groups of the program-controlled synchronous switches are closed in different time. The frequency conversion smoke exhaust ventilator adopts the bridge type switch structure, so that the purpose of outputting the safe and isolated power supply is realized.

The present disclosure provides an image processing method, device, terminal, and storage medium. The method includes: obtaining an RGB-NIR image sensor replacing a G component in a Bayer RGGB mode with an NIR component; using the RGB-NIR image sensor to obtain an RGB-NIR RAW image; and obtaining an RGB image and a near-infrared (NIR) image by demosaicing the RGB-NIR RAW image based on a vector median method.

The invention discloses a capacitive switch safe isolation program-controlled power supply circuit. The capacitive switch safe isolation program-controlled power supply circuit comprises a bridge type rectifying circuit, a single chip microcomputer, a capacitive program-controlled voltage-reduction circuit and a switch circuit; the bridge type rectifying circuit is composed of triodes Q1 and Q3 and diodes D2 and D3; the base electrodes of the triodes are connected with the single chip microcomputer; the capacitive program-controlled voltage-reduction circuit comprises capacitors C2, C3 and C4 and triodes Q4 and Q5 to form direct current stage-by-stage voltage reduction; the base electrodes of the triodes Q4 and Q5 are connected with the single chip microcomputer; the switch circuit comprises two groups of program-controlled synchronous switches; the first group switches are connected with the output end of the bridge type rectifying circuit, and the input ends of the capacitor C2 and the triode Q4; the second group of switches are connected with the output ends of the capacitor C2 and the triode Q4, and the input ends of the capacitor C3 and the triode Q5; and the two groups of the program-controlled synchronous switches are closed in different time. The capacitive switch safe isolation program-controlled power supply circuit adopts the capacitive program-controlled voltage-reduction circuit instead of a cumbersome power supply transformer, so that the factor power of the mains supply is improved and a large amount of electric energy is saved.

The invention provides a digital instrument stepper motor driving method and a system. through acquiring an operation state of a motor in real time in a control process, the current position and a target position of the stepper motor are judged, the current position and the target position are compared, a program for driving the stepper motor is started when the current position and the target position are not consistent, and according to the current position of the stepper motor, the duty ratio of a driving pulse signal is adjusted to drive the stepper motor to rotate until the current position of the motor is the same as the target position. Thus, according to the above scheme, through determining the operation state of the stepper motor in real time, the operation process of the stepper motor is controlled, and when the method and the system are applied to a pointer-type dashboard, the working state of the vehicle can be accurately reflected in real time.

A dipole antenna includes a first radiator and a second radiator. The first radiator includes a first radiating arm and a first extending arm, and the second radiating body includes a second radiating arm and a second extending arm. In a physical configuration, the first extending arm and the second extending arm are not adjacent to each other, and the first radiating arm and the second radiating arm are side by side.

A phase-locked loop circuit. The phase-locked loop circuit comprises a phase detector, a proportional charge pump, a decimator, an integral charge pimp, and a voltage-controlled oscillator. The phase detector obtains an phase error information according to a phase difference between a reference signal and a clock signal input to the phase detector. The proportional charge pump coupled to the phase detector generates a first voltage according to the phase error information. The decimator generates a decimated version of the phase error information by a decimation factor of N. The integral charge pump generates a second voltage according to the decimated version of the phase error information. The voltage-controlled oscillator generating the clock signal according to a combination of the first and second voltages.

A portable electronic device includes a battery, metal components, a control circuit and a plurality of impedance components. The battery is arranged on the carrier element. The metal element receives the feed-in signal through the feed-in point to generate at least one radio frequency signal. The orthographic projection of the metal element on the carrier element and the orthographic projection of the battery on the carrier element overlap each other. The control circuit is used for controlling the battery, so that a plurality of operation signals are transmitted between the battery and the control circuit. The plurality of impedance elements are electrically connected between the battery and the control circuit, and the plurality of impedance elements transmit the plurality of operating signals and block at least one radio frequency signal.

The invention discloses a face recognition method, device and mobile terminal, belonging to the field of biological feature recognition. The method includes: according to a preset collection rule, using a dual light sensing camera to obtain a visible light face image set; according to the preset collection rule, using the dual light sensing camera to obtain an infrared light face image set; judging whether the local end There is a face template image matching any face image in the visible light face image set and the infrared light face image set; when the local end exists, the face recognition is passed. The present invention uses dual light sensing cameras for face recognition, which can realize face image collection and face recognition under different ambient light conditions, improves the accuracy of face recognition, and does not require mobile terminals to be equipped with multiple cameras, saving The hardware space improves the cost performance and facilitates the user to carry and operate the mobile terminal.

The present invention proposes a device for arranging data with horizontal segmentation, including a frame memory and a frame data arrangement device. The frame data arrangement device is coupled with the frame memory. The frame memory is used to store frame data with m vertical fields, and each vertical field has n horizontal fields. The frame data arrangement device is used to cover the first data block by the arranged first data block and cover the second data block by the arranged second data block, wherein, the frame data of the first data block with Vstripe line are arranged according to the n values, and the frame data of the second data block with Hstripe line are arranged according to the m values.

The invention provides a method and a system for driving the rotation of a stepping motor. The method comprises the steps that a total number N of the times of acceleration needed by the stepping motor from starting to constant-speed running is set, and time tn needed for the nth time of acceleration is set, wherein n is an integer, 1<=n <= N, and simultaneously, tn< tn-1; the stepping motor is driven according to the total number N and the time tn needed for each time of acceleration; and when the number of the times of acceleration is equal to the total number N, the motor is driven to run at a constant speed. When the control method is adopted to drive the stepping motor, only acceleration and constant-speed processes are included, so that the control process is simple; in addition, the total number N of the times of acceleration and the time tn needed for each time of acceleration are respectively adjustable, so that the stability of the running of the stepping motor is facilitated, and that is to say, the stepping motor is enabled to stably and rapidly to rotate to a constant-speed period.

The invention discloses an alignment adjustment method for a blocking component. The method comprises steps of carrying out alignment adjustment of the blocking component at a drive controller side used for controlling a direct drive motor; according to a deviation value between a first absolute position angle of an output rotating shaft of the direct-drive motor when the blocking component is located at the set position and a second absolute position angle of the output rotating shaft of the direct-drive motor when the blocking component is located at any position, the direct-drive motor is controlled to rotate, and the blocking component is adjusted to the set position from the current any position; the first absolute position angle and the second absolute position angle are determined by capturing pulse width modulation (PWM) signals outputted by a coding disc installed on an output rotating shaft of the direct drive motor. The method is advantaged in that position detection devices such as a travel switch and a detection rod do not need to be additionally installed, hardware cost and the mechanism size space are saved, miniaturization and refinement of a machine core structure can be conveniently achieved through direct drive, and reliability is improved due to the fact that connecting cables of the in-place switch plate are reduced.

The invention relates to a fingerprint identification technology, and aims to provide an identity authentication method and system based on fingerprint sound waves. Comprising the steps that a user puts the finger pulp of a finger on a friction material, the finger pulp slides on the surface of the friction material for multiple times, and a microphone records friction sound in the finger moving process; carrying out noise reduction processing on the collected sound signal, and intercepting a sliding friction audio signal after noise reduction; performing feature extraction on the intercepted audio signal to obtain a third-level audio feature based on a fingerprint feature; fusing, classifying and predicting the extracted audio features by using a plurality of classifiers by using an integrated classification learning method; and voting the prediction result according to the weight to obtain a user identity authentication result, and storing the user identity authentication result with the authentication result. According to the invention, it can be ensured that fingerprint authentication can only be based on field living body identification, and the security is greatly enhanced while the privacy of the user is protected; the fingerprint information of the user can be obtained only through the microphone, the hardware cost and the space can be saved to the maximum extent, and the method has good industrial application prospects.