533results about How to "Achieve normal startup" patented technology

The invention provides an intelligent automobile-key system based on bluetooth communication, which comprises a PEPS (Passive Entry & Passive Start) controller, a vehicle-mounted bluetooth module, an electronic terminal and a door-handle switch, wherein the PEPS controller is connected with the vehicle-mounted bluetooth module and the door-handle switch, the PEPS controller is used for controlling a vehicle antitheft system and an engine system, the vehicle-mounted bluetooth module is used for realizing bluetooth communication with the electronic terminal, the electronic terminal has an intelligent automobile-key application program, and the door-handle switch is used for the input of user unlocking and locking requests. Because the vehicle-mounted bluetooth module exists, a vehicle is controlled to actively send out a bluetooth signal for actively identifying and authenticating the electronic terminal, such as a mobile phone, so that complicated operation is avoided.

The invention provides a method and device for controlling speech recognition. The method comprises the steps of obtaining behavior images of a user through an image collecting device, and starting the speech recognition function to begin to obtain speech input by the user if the behavior images of the user meet starting conditions of the speech recognition function. According to the method and device, the speech recognition function can be started in a non-contact mode, the user is not required to click an appointed button, and the speech recognition function is conveniently achieved.

The invention relates to a square wave injected method for estimating the rotor position, after time delay compensation, of a PMSM. A PI current regulator controls the magnitudes of output Ud and Uq voltage vectors, square-wave voltage signals are injected to an estimation d axis when the motor is static, initial positioning is completed in a closed-loop manner, and an N pole is converged rapidly to the real d axis. After that the motor is started smoothly, that rapid change of a load component in the dynamic process generates a high frequency component is taken into consideration, and thus, the bandwidth of a position observer is limited, the position estimating precision is influenced, a BPF is used to eliminate the high-frequency component of the load, a q-axis high-frequency response current is obtained, and the rotor position and speed are estimated via the position observer. At the same time, high-frequency response current distortion caused by lagging of PWM signals is eliminated on the basis of q-axis current error time-delay compensation algorithm.

The invention provides an intelligent car key system based on the internet and a controlling method. The intelligent car key system comprises a mobile terminal, a server, a controller and an execution unit, wherein the server is used for storing car identity information and recognizing identities, the controller is arranged in a car, and the execution unit is used for opening or closing car doors according to instructions of the controller. The mobile terminal comprises a fingerprint recognition module used for unlocking the car doors by means of fingerprint verification, and a communication module. A smartphone is utilized for installing a corresponding APP, fingerprint recognition authentication to the car is achieved, and car door opening and car starting are achieved; the system can replace an existing intelligent key completely, all functions of an intelligent key are achieved, and therefore the trouble caused when a car owner forgets to carry the key can be avoided; moreover, control over multiple cars can be achieved, all members in a family owning multiple cars can use the cars only by adopting mobile phones, and restriction of the number and carrying of the keys is avoided.

The invention discloses a system capable of realizing bootload, a bootload control device and a bootload control method. A bootloader is stored in a first non-volatile memory device which does not support execute in place (XIP) and has an automatic reading characteristic; a first part of codes capable of being automatic read of the bootloader are backed up in a second non-volatile memory device, and a second residual part of codes of the bootloader are backed up in the first non-volatile memory device; a logic chip reads the backup of the first part of codes to a built-in random access memory(RAM), and switches connection between the boot chip selection output of a central processing unit (CPU) and the chip selection input of the first non-volatile memory device and the connection between the boot chip selection output of the CPU and the chip selection input of the built-in RAM for the CPU to acquire the first part of codes from the first non-volatile memory device or acquire the backup of the first part of codes from the built-in RAM; and the logic chip also can provide the second part of codes or the position information of any backup of the second part of codes in the first non-volatile memory device for the CPU, thereby realizing the backup boot of the second part of codes.

The invention relates to an automobile intelligent card positioning system, which is characterized by comprising an emission antenna, an intelligent card and an electronic control unit; the emission antenna is arranged in an automobile carriage; the emission antenna is electrically connected with the electronic control unit and used for transmitting wireless low-frequency signal according to the command; the intelligent card is matched with the emission antenna and the electronic control unit; the intelligent card receives the wireless low-frequency signal and detects the magnetic-field strength of the wireless low-frequency signal, and transmits the detection result to the electronic control unit through the wireless high-frequency signal; the electronic control unit compares the magnetic-field strength data in the received wireless high-frequency signal with the previously stored reference data so as to determine the position of the intelligent card. The automobile intelligent card positioning system has the function of accurately positioning the intelligent card, thereby realizing the passive entrance and starting of the automobile and bringing much convenience to the driver.

The invention discloses a network side processing method during user switching, which is applicable to UE (user equipment) which does not bear the context. The method comprises the following steps that: after a first network receives an attach request message sent by the UE, the first network determines that the UE starts ISR between the UE and a second network, and sends information of instructing the UE to start the ISR (idle-mode signaling reduction) between the UE and the second network to the UE. The technical proposal provided by the invention can start the ISR in attach flow. For an E-UTRAN network, a mobility management network element is MME; and for a GERAN/UTRAN network, a mobility management network element is SGSN.

The invention discloses a control program modularization system for a numerical control machine. The system comprises a human machine interface (HMI). The system is characterized in that: a numerical control machine control program system in a numerical control unit (NCU) is subdivided according to each functional program and reflected in a module form; a function selection parameter number checkmodule is stored and set inside a programmable logic controller (PLC) of the system; a basic function library module contains control logic programs of corresponding sub functions after the function of the numerical control machine is decomposed; a storage data and system start module, an axis control module and an auxiliary function selection module in the PLC are called for data processing and selection and start of corresponding functions; and an input/output signal mapping module is used for logic processing between the internal storage data and the actual input/output signals. The related functional modules are called by function selection on the HMI, so that a certain functional program can be complemented or modified, the production efficiency of the numerical control machine is improved, the fault rate of the numerical control machine is reduced, and the reliability of the numerical control machine in actual use is enhanced.

The invention discloses a testing system for a double-fed motor and a testing method thereof. The system disclosed by the invention comprises a generator unit, a motor unit and a system starting unit, wherein the generator unit comprises a motor A and a double-fed frequency converter A; the motor unit comprises a motor B and a double-fed frequency converter B; the system starting unit comprises astator short circuit contactor A and a stator short circuit contactor B; and the motor A and the motor B are double-fed motors of the same specification and model and are in rigid connection through a coupling. The method disclosed by the invention comprises a stator short circuit rotor frequency conversion operating mode and a double-fed operating mode. In the invention, the short circuit is carried out on a stator assisting to test the motors, and a rotor is controlled by the double-fed frequency converters, thereby realizing the self-starting of a towing system. According to the invention,the problems that the speed regulation range is narrow and the double-fed motors cannot be started in the double-fed operating because of the limit of the rotor output voltage of the double-fed motors are solved; and the starting and low-speed operating of the system are realized by changing the control method of the double-fed motors, and the test cost is greatly saved.

The invention discloses a switching converter with a wide input voltage range, which comprises a main power circuit, an output rectifier filter circuit and a drive control module, wherein the main power circuit is formed by connecting a transformer and a switching tube. The switching converter is characterized by further comprising an auxiliary power supply circuit, wherein the auxiliary power supply circuit is connected between the power input end of the converter and an auxiliary winding of the transformer, realizes the normal starting of the switching converter in the wide input voltage range, and switches a starting circuit in the auxiliary power supply off after the switching converter works normally, thereby eliminating loss produced by the starting circuit in the auxiliary power supply circuit and improving the reliability of the switching converter at the same time of improving the efficiency of the switching converter.

The invention relates to the technical field of aerospace propulsion, in particular to a repeated starting rocket engine and a starting method. According to the repeated starting rocket engine, an oxidizing agent and fuel are led out of the rear end of a turbopump, a generator is ignited to generate flue gas at a certain pressure so as to drive the turbopump to rotate, and repeated starting of therocket engine is achieved. The turbopump can be started in the mode of pumping media to the fuel gas generator, repeated stable starting of the rocket engine can be realized and the starting structure is simplified.

The invention discloses a smart card positioning method for an automobile wireless access control system. The method comprises the following steps that: 1, a transmitting antenna, a receiving antenna, a smart card and an automobile interior control unit are selected; 2, the transmitting antenna, the receiving antenna and the automobile interior control unit are arranged; 3, the automobile interior control unit sends a command to the transmitting antenna so as to start the transmitting antenna to transmit a signal and the smart card detects the magnetic field intensity of the signal and transmits magnetic field intensity data to the automobile interior control unit through the receiving antenna; and 4, the automobile interior control unit receives the magnetic field intensity data, converts the magnetic field intensity data into a distance value according to a preset transformational relation and compares distance data with prestored reference data so as to determine the position of the smart card and judge whether to respond to an automobile unlocking request or an automobile starting request according to a determination result. By the method, an automobile can be passively accessed and started and great convenience is brought to a driver.

The invention discloses a terminal application starting method and a terminal. The method comprises the steps that the context value of at least one context situation is obtained, the context situation represents an information source available for the terminal and related to man-machine interaction, and the context value represents the value of the context situation; an application corresponding to the context value is determined according to the decision rule; operating parameters of the application are determined according to the context value and the determined application; the application is started, and the application is operated according to the operating parameters. The invention further discloses the corresponding terminal and another corresponding method and terminal. According to the method and terminal, the application of the terminal can be automatically started and operated or the application can be automatically selected and started according to the context value of the context situation, and the user experience is enhanced.

A device for fast realization of shortcut biological denitrification through salinity inhibition combined with fuzzy control and methods thereof pertain to the technical field of sewage biological denitrification of SBR method and are suitable for sewage disposal in nitrogen-containing industry and advanced treatment of town sewage. The invention adjusts the mass concentration of crude salt of inlet water in 5-7.5 g/L (Cond value is 8.92-12.95 mc/cm) to quick realize the accumulation of nitrite in normal temperature above 90 percent by adding crude salt of a certain concentration (the crude salt is obtained directly by basking seawater without any processing) and combining with controlling the time of nitrification and denitrification in real time, the method is designed to solve the problems of long starting time of the existing shortcut biological denitrification technology and difficulty to maintain. The method can not only fast realize the accumulation of nitrite in high proportion stably in reaction system to enable the nitrating types to be fast and long-time stabilized on shortcut nitrification, but also has the advantages of low cost, flexibility in operation and management and seldom causing sludge bulge, etc.

The invention discloses a flexible gyro digital rebalancing device based on DSP. The device comprises a gyro assembly and a digital signal processor; wherein the gyro assembly comprises a gyro, a motor, an X torquer, an X sensor, a Y torquer and a Y sensor; the digital signal processor comprises an A/D convertor, an X-PWM generator and a Y-PWM generator; the gyro is connected with an input circuit, the X sensor and the Y sensor are respectively connected with the A/D convertor inside the digital signal processor through an X error identification circuit and a Y identification circuit; the X-PWM generator and Y-PWM generator inside the digital signal processor are respectively the X torquer and the Y torquer through an X pulse current control circuit and a Y pulse current control circuit; the digital signal processor is connected with the motor in the gyro assembly through a motor power supply control circuit; the digital signal processor is provided with a communication interface. In the invention, signal error of the gyro sensor is directly acquired, thus fundamentally removing non-linear error of the gyro torquer.

The invention relates to a speed-reduction one-way clutch, which comprises: a spindle axle (17), a hollow axle (14), and a large spring (13), wherein the hollow axle (14) and the large spring (13) sheathes the spindle axle (17); one end of spindle axle (17) extrudes outside the hollow axle (14), while another end is arranged with external screw spindle axle to match the internal screw spindle of hollow axle (14); said hollow axle (14) via axle linear (15) is arranged with gear spindle sheath (12) whose outer ring at one end is the external gear while the inner ring at another end has five rolling rooms (19), and each room (19) has at least one group of rollers (18) and flat springs (10); the outer end of rolling room (19) is arranged with clamp plate (9) and cover (8). The invention has simple structure, low cost, low noise, large transmission torque and stable operation.

The invention discloses an NVRAM (Non-Volatile Random Access Memory) data recovery method and an NVRAM data recovery device. The device comprises a data obtaining unit, an unlocking unit, an erasing unit, a write-in unit and a locking unit. The method comprises the following steps that: 1, when a recovery instruction is received, an NVRAM factory default of a terminal is read; 2, the read-write property of the NVRAM is set to be readable and writable; 3, current BIOS (Basic Input/Output System) configuration parameters stored in the NVRAM are erased; 4, if the erasing is successful, the read NVRAM default is written into a region, for storing the current BIOS configuration parameters, in the NVRAM; and 5, the read-write property of the NVRAM is set to be read-only. A terminal user is allowed to determine whether to clear the current BIOS configuration parameters stored in the NVRAM or not according to the actual demands; the NVRAM factory default of the terminal is loaded; the operation is simple; the efficiency is high; and the cost expenditure and the labor cost are reduced for both the terminal user and a manufacturer.

The invention provides a well cover with an anti-theft function. The well cover comprises a well cover body and a monitoring module, wherein the well cover body comprises a well cover shell as well as a sensing unit, a signal generating unit and a processing unit which are packaged in the well cover shell; the sensing unit and the signal generating unit are respectively connected with the processing unit; the monitoring module comprises a seal shell as well as a well cover detecting unit, a control unit, a signal transceiving unit and an alarm unit which are packaged in the seal shell; the well cover detecting unit, the signal transceiving unit and the alarm unit are respectively connected with the control unit; the signal generating unit is coupled with the signal transceiving unit; and the signal generating unit adopts a preset identification code for identification. The well cover has the following advantage: when the well cover body is stolen or is subjected to displacement change, and the alarm unit is started for alarming, thus on the basis, the well cover body is quickly and accurately found out via the identification code.

Disclosed are a processor start-up method and a device. The method includes the steps of a receiving processor sending start-up address and mapping the start-up address of the process to a first flash BOOTROM, the processor executing Boot Strap program in the first BOOTROM to carry out internal initiation, copying the Boot Strap program to DDR SDRAM low-end memory to continuously executing the Boot Strap program; unpacking the packed first BOOTROM program to DDR SDRAM high-end memory and executing the unpacked program, and loasing formal mapping of Flash file system zone onto a formal mapping zone of the DDR SDRAM and executing the formal mapping. The flash has at least two BOOTROMs, and each BOOTROM has packed program and a Boot Strap program. The invention improves the reliability of processor start-up.

The invention relates to a mechanical brake energy regeneration bicycle. A transmission mechanism is connected with a rear axle of the bicycle via a first chain wheel and a first overriding chain wheel and is connected with a spring energy accumulator through the engagement of a first bevel gear and a second bevel gear with a third bevel gear; and a control mechanism comprises an energy storage type damper brake, a forward boosting brake and a backward assisting brake installed on a handlebar, and the brakes are respectively connected with corresponding cam draw bars in the transmission mechanism via brake cables. The bicycle regenerates brake energy in a mechanical way and releases the energy during starting or acceleration, and the purposes of energy saving and environmental protection are achieved. Four-stage transmission is adopted as input, symmetrical four-stage transmission is adopted as output, and the energy utilization efficiency is high; the mechanical control mechanism has simple structure, low cost and easiness in operation and conforms to the riding habit; the spring energy accumulator has light weight and small size and is used as a bicycle beam, and the appearance of the bicycle body is not changed; and the bicycle also has backward function.