36results about How to "Avoid frequent jumps" patented technology

The invention provides a battery pack residual charging time estimation method. The method comprises the steps of calculating the pre-heating charging time, detecting the real-time temperature of eachbattery cell in the battery pack, and if the minimum value Tmin in the real-time temperature of the battery cell is detected to be lower than the set minimum charging temperature, carrying out the pre-heating to heat the battery cell to a set target temperature Ttarget, and heating according to a preset heating temperature rise rate delta T, the pre-heating charging time TIME1 being equal to delta T*(Ttarget)-Tmin); if the real-time temperature of the battery pack is larger than the set charging minimum temperature, the TIME1 being equal to 0; calculating the constant-current charging time TIME2 needed by the constant-current charging stage of the battery pack; calculating the constant-voltage charging time TIME3 required by the constant-voltage charging stage of the battery pack; and calculating the residual charging time of the battery pack T=TIME1+TIME2+TIME3.

The invention provides a shooting control method for a terminal, a shooting control device for the terminal and the terminal. The shooting control method for the terminal comprises the following steps of detecting current ambient brightness of the terminal through a ray sensor of the terminal when a preview image is collected by a front camera of the terminal; counting a brightness histogram of the preview image if detecting that the current ambient brightness is greater than preset ambient brightness; computing the current backlight degree of the terminal according to the brightness histogram; and deciding whether to open a shooting function of a high dynamic range image of the terminal according to the current backlight degree. When the front camera is utilized to shoot, the technical scheme of the invention can accurately and quickly determine whether the terminal is under the backlight environment, so that the quality of an image shot under the backlight environment is improved.

The invention provides an HDFS (Hadoop Distributed File System)-based small file combination tool and method, which is applied to a server which can carry out information interaction with each node contained in the HDFS in a cluster. The HDFS-based small file combination tool comprises a setting unit, a catalogue generation unit, a transmission unit and a reading combination unit, wherein the setting unit is used for setting a small file combination rule; the catalogue generation unit is used for determining catalogue parameters and generating an input/output catalogue according to the catalogue parameters; the transmission unit is used for setting a small file threshold value, determining the small file in each external node according to the small file threshold value and storing the determined small file into the input catalogue generated by the catalogue generation unit; and the reading combination unit is used for traversing the input catalogue, reading at least two small files which conform to the combination rule set by the setting unit in the input catalogue, combining the at least two small files into at least one data file and storing the at least one data file into the output catalogue generated by the catalogue generation unit. File processing efficiency can be effectively improved.

The invention discloses a power battery charge heating control method and a power battery charge heating control system of electric vehicles, wherein the method comprises following steps: (1) when the power battery needs to heat, determining whether the lowest temperature of a front battery box and/or the lowest temperature of a back battery box is lower than a first preset temperature; (2) if the lowest temperature of the front battery box and/or the back battery box is lower than the first preset temperature, heating the front battery box and/or the back battery box, or otherwise, comparing a difference between the lowest temperatures of the front battery box and the back battery box with a second preset temperature; (3) if the temperature difference is higher than the second preset temperature and the lowest temperature of the front battery box is higher than that of the back battery box, heating the back battery box for reducing the temperature difference, or otherwise, if the temperature difference is higher than the second preset temperature and the lowest temperature of the back battery box is higher than that of the front battery box, heating the front battery box. In the invention, according to the temperature change of the front and back battery boxes, a waiting-and-running-after control method is employed so that the temperature difference of the two battery boxes is in a reasonable range, thereby ensuring high-effective and quick charging.

A device for recording records information in blocks having logical addresses at a physical address (52) in a track on a record carrier. The logical addresses are translated into the physical addresses in dependence of defect management information, such as remapping tables, maintained in defect management areas. For avoiding remapping of real time information, such as video, a series of blocks (42) having a continuous logical address range is recorded in a corresponding allocated physical address range. In the event of a defect interrupting the allocated physical address range local offset information is generated for adding an offset to a local range of physical addresses in said address translation for skipping (61) the defect. The blocks logically following the last block before the defect are written at physical addresses following the defect, and an end portion (62) that extends beyond the allocated physical address range due to the defect, is accommodated elsewhere.

The invention relates to a temperature detecting device, a temperaure detecting method and a liquid crystal driving device. The temperature detecting device comprises a state machine, a frame frequency selection unit and a frame frequency output unit. When a current temperature value jumps around a certain critical temperature value, the state machine judges whether the difference value of the current temperature value and the critical temperature value is within the preset range; if the difference value of the current temperature value and the critical temperature value is within the preset range, the state machine determines that the current state is the previous state; if the difference value of the current temperature value and the critical temperature value is out of the preset range, the state machine determines that the current state is the state corresponding to the current temperature value. The frame frequency selection unit connected with the state machine is used for selecting the frame frequency corresponding to the current state according to the current state determined by the state machine. The frame frequency output unit connected with the frame frequency selection unit is used for outputting the frame frequency. When the temperature jumps frequently in a smaller range, the temperature detecting device can avoid the frequent jump of the frame frequency and the flicker of a liquid crystal display screen caused by the frequent jump of the frame frequency, and thus the display quality of liquid crystal display screen is enhanced.

The invention provides an HDFS mass small file processing method and system. According to the method, whether all received files currently requested to be uploaded are small files is judged, if yes, the files currently requested to be uploaded are cached respectively, the sum of sizes of all the files which are currently cached and requested to be uploaded is calculated, and the total quantity ofall the files which are currently cached and requested to be uploaded is subjected to statistical analysis; the currently calculated sum of sizes and a preset second threshold value are compared, thetotal quantity currently obtained through statistical analysis and a preset specific quantity threshold value are compared; when any of the comparison relations is established, all the files which arecurrently cached and requested to be uploaded are merged, and a file index list of all the files which are currently cached and requested to be uploaded is created; and next, the currently merged files and the corresponding file index list are uploaded to an HDFS cluster, and then all the files which are cached and requested to be uploaded are removed. In this way, access efficiency of an HDFS onmass small files can be improved.

The invention provides a method and a system of controlling the working mode of an electric vehicle, and the electric vehicle having the same. The method comprises the steps of obtaining target power of a motor at multiple speeds and multiple accelerator pedal openings through adjusting the speed and the accelerator pedal opening of the electric vehicle, and determining a control curve graph of the motor according to the target power of the motor at the multiple speeds and multiple accelerator pedal openings, wherein the control curve graph includes multiple control curves; and detecting the speed and the accelerator pedal opening of the electric vehicle, determining a working point of the electric vehicle in the control curve graph according to the speed and the accelerator pedal opening of the electric vehicle, and adjusting the target power of the motor according to the power of a control curve corresponding to the working point, to control the running of the electric vehicle. According to the method disclosed by the embodiment of the invention, the target power of the motor is adjusted through determining the control curve graph of the motor and determining the position of the working point of the electric vehicle, the manual operation is avoided, the efficiency and the load rate of the motor are improved, and the power consumption of the vehicle is reduced.

The invention discloses a double-mode hybrid vehicle and a five-parameter control method and device of a working mode of the vehicle. The method comprises the steps of obtaining the current vehicle speed of double-mode hybrid vehicle; according to the engine idle rotating speed, the tire size and the final ratio of the double-mode hybrid vehicle, obtaining the idle vehicle speed corresponding to the idle rotating speed; if the current vehicle speed is smaller than or equal to the idle vehicle speed, obtaining a first working mode distribution model; if the current vehicle speed is larger than the idle vehicle speed, obtaining a second working mode distribution model; obtaining current battery charge state and wheel required torque of a power battery of the double-mode hybrid vehicle; according to the current battery charge state, the wheel required torque and the first working mode distribution model or the second working mode distribution model, determining the working mode of the double-mode hybrid vehicle. The frequent jumping problem between the working modes is solved, the comprehensive performance of the double-mode hybrid vehicle is improved, the fuel economy is improved, and the user experience is improved.

The embodiment of the invention provides a webpage opening method and device and a terminal device, and belongs to the technical field of internet. The webpage opening method includes the following steps of generating and sending a webpage opening request for requesting the webpage content according to a triggering operation of a webpage link in a current interface, receiving the webpage content returned according to the webpage opening request, and displaying the webpage content through a floating window based on the current interface. Based on the method, after the link on the current webpage is clicked on, the content of the link is displayed to a user through the floating window of the current webpage, and the current webpage can not be closed; in other applications, after the user sees the link and clicks on the link, there is no need to skip to a browser application, and the frequent skipping between the APPs and the browser application is avoided for the user. Thus, the user experience is improved when the user opens a new link.

The invention provides a charging and discharging control method and device for an automobile electronic double layer super-capacitor. The control method comprises the steps of 1, obtaining voltage and temperature information of the electronic double layer capacitor (EDLC); 2, judging whether the EDLC continues to be used or is stored for a long time, executing the step 3 if the EDLC is stored for a long time, and executing the step 4 if the EDLC continues to be used; 3, controlling the EDLC to be stored with voltage not larger than the storage voltage; 4, according to a vehicle control unit charging and discharging instruction, determining whether automobile starting discharging or automobile load discharging is performed when the EDLC needs to be discharged, and determining whether constant voltage charging or low current pre-charging or high current rapid charging is performed when the EDLC needs to be charged. The using efficiency of the EDLC can be improved on the premise that the service life of the EDLC is ensured.

The invention provides a data correction method for improving measurement precision. The data correction method comprises the steps of a, acquiring to-be-corrected continuous indirect measurement data, and establishing a segmented nonlinear correction model I and a segmented nonlinear correction model II; b, setting a hysteresis interval q-p, wherein critical thresholds satisfy a relation of q<p, and on the condition that the value of the measured continuous indirect data is lower than the critical threshold p, performing correction by means of the segmented nonlinear correction model I, and on the condition that the value of the measured continuous indirect data increase to higher than the critical threshold p, performing correction by means of the segmented nonlinear correction model II, and on the condition that the value of the measured continuous indirect data gradually reduces to lower than the critical threshold q, performing correction by means of the segmented nonlinear correction model I. According to the data correction method, data are corrected by means of a segmented nonlinear mode. Compared with a traditional segmented linear correction, the data correction method is advantageous in that less correction points in segmented nonlinear correction are realized; and furthermore after the hysteresis interval is introduced, high-frequency data jump caused by high-frequency correction model switching at critical points can be prevented.

The invention relates to the technical field of automobile air conditioners, in particular to an automobile air conditioner control system. The automobile air conditioner control system comprises an air conditioner controller, a first relay, a second relay, a third relay, a fourth relay, an air conditioner pressure switch, a compressor, a condenser fan and an ECU. A low-potential signal can be synchronously output through a first terminal and a second terminal of the air conditioner controller, so that the condenser fan and the compressor synchronously work; and the problem that an existing air conditioner system is poor in air conditioner refrigerating effect during engine idling is solved, frequent tripping of the pressure switch is avoided, and the service life of the compressor is prolonged.

The invention discloses an explosion-proof door of a waste heat boiler. The explosion-proof door comprises an explosion-proof door connecting pipe, an explosion-proof door cover and a limiting assembly; an outlet is formed in one end of the explosion-proof door connecting pipe; the explosion-proof door cover seals and covers the outlet in a rotating mode; the limiting assembly comprises a balancing weight rotating shaft, a limiting block and balancing weights; the limiting block is arranged on the explosion-proof door connecting pipe; the balancing weight rotating shaft is connected to the explosion-proof door cover, synchronously rotates with the explosion-proof door cover and is limited on the limiting block after rotating so as to limit the maximum opening angle of the explosion-proof door cover; and the multiple balancing weights are detachably connected to the balancing weight rotating shaft, so that the jump pressure of the explosion-proof door cover can be adjusted. According tothe explosion-proof door, after deflagration occurs in the explosion-proof door and sufficient pressure is accumulated, the explosion-proof door cover and the balancing weight rotating shaft jointlyrotate and are opened under the action of the impact force, and when the explosion-proof door cover rotates to the position where the balancing weight rotating shaft is matched with the limiting block, the explosion-proof door cover is opened to the maximum angle for pressure relief; rapid reset can be realized after pressure relief; and the jump pressure is adjustable, and the use reliability ishigh.

The invention belongs to the technical field of satellite navigation, and discloses a Beidou weak signal capturing method and system.The method comprises the steps that firstly, carrier stripping is conducted on sampled data, chip merging is conducted, then repeated utilization, Doppler stripping and data folding of code merging data are achieved through an overlapping and folding method, and consumption of hardware resources is reduced; and carrying out code parallel coherence on the data block and the local pseudo code through FFT and IFFT to obtain coherence values of all code phases. Performing difference on coherent values of different code phases through an inter-symbol difference algorithm to avoid the influence of NH code hopping and navigation data hopping; performing coherence on the differential data after Doppler compensation, improving the signal-to-noise ratio of the signal, performing incoherence on the data, improving the capture sensitivity, and finally judging whether to capture the satellite signal or not through threshold judgment. According to the invention, Beidou D2 navigation data of-146dBm and D1 navigation data of-145dBm are finally captured.