18results about How to "Shorten start time" patented technology

The embodiment of the invention provides a cache data management method and device, a medium and equipment, and the method comprises the steps: receiving a playing request for target multimedia, and obtaining target source data corresponding to the target multimedia according to the playing request; analyzing the target source data to obtain GOP data; judging whether the current data cache space for GOP data cache supports GOP data writing or not; if the data cache space does not support GOP data writing, target historical position information located at the head of a queue structure is removed from the queue structure associated with the data cache space, and meanwhile historical GOP data corresponding to the target historical position information in the data cache space is released until the data cache space supports GOP data writing. And writing the GOP data into the data cache space. By utilizing the cache data management method provided by the embodiment of the invention, the problem that the multimedia playing process is stuck or audio and video are asynchronous due to unreasonable setting of a current data cache mechanism can be solved.

The invention relates to a vehicle starting control method and device, electronic equipment and a vehicle. The vehicle starting control method comprises the steps that a vehicle is controlled to run in a rapid starting mode; calculating a first torque of an engine required to meet a vehicle starting condition in the rapid starting mode; when the brake release signal is received, the engine is controlled to output first torque, and meanwhile the clutch is controlled to be engaged to a first engagement process; under the condition that the brake loosening duration is smaller than the set starting duration and an accelerator opening signal is received, the vehicle is controlled to execute the rapid starting action; and under the condition that the accelerator opening signal is not received and the brake loosening duration is longer than or equal to the set starting duration, the vehicle is controlled to execute the automatic starting action. According to the vehicle starting control method, after the brake is released, the engine is controlled to output the first torque immediately, the clutch is controlled to be engaged immediately, the starting speed of the automatic transmission vehicle is effectively increased, and the automatic transmission vehicle can meet the application requirement for multi-scene rapid starting.

The convenient-to-adjust double-motor starting device comprises a cross beam plate which is arranged on a public engine base and located on the right side of a flywheel at the output end of a diesel engine, two supports are installed on the cross beam plate in a position-adjustable mode, a pneumatic motor is installed on the supports in a height-adjustable mode, and a motor gear is fixed to the output end of the pneumatic motor. The motor gear is meshed with a flywheel at the output end of the diesel engine, and simultaneous starting and stopping of the two pneumatic motors are controlled through an electromagnetic valve arranged on a main air path. The pneumatic motors supported by the support in a height-adjustable mode are simultaneously arranged on the two sides of the output end of the diesel engine, the starting capacity and efficiency of the diesel engine are greatly improved, the starting time is shortened, and smooth and stable starting of the diesel engine is guaranteed. On the premise that the height of the pneumatic motor is adjustable, the support is fixed on the position-adjustable cross beam plate in a position-adjustable manner, so that the position of the pneumatic motor can be adjusted in three directions when the pneumatic motor is mounted and fastened, the assembly backlash is quickly ensured, the meshing consistency of a double-motor gear and a flywheel is ensured, and the backlash adjustment requirement is met.

The invention relates to a startup catalyst for a catalytic cracking unit and a preparation method and application thereof, the startup catalyst contains 15-95% of a first catalyst and 5-85% of a second catalyst by taking the dry basis weight of the startup catalyst as a reference, and the content of the first catalyst is 5-95%, and the content of the second catalyst is 5-85%. Wherein the main active component of the second catalyst is a modified small-grain Y-type molecular sieve material. The preparation method of the startup catalyst comprises the step of physically and uniformly mixing the first catalyst and the second catalyst. The start-up catalyst has excellent physical and chemical properties, can be used in a start-up stage of a catalytic cracking device, can realize efficient and stable start-up of the device, and can also be used in industrial scenes such as start-up after shutdown maintenance of the device, rapid replacement after poising agent poisoning, supplement during abnormal agent running and the like.

The application discloses a circuit breaker mechanical characteristic test and diagnosis algorithm verification device with a waveform editing function, which comprises a signal acquisition and communication module, a man-machine interaction interface, a drag-type waveform editing unit, a waveform feature self-adaptive reconstruction unit and a format storage and reading unit. The signal acquisition and communication module synchronously acquires four types of key signal waveforms during circuit breaker opening and closing operations; through graphical operation of the man-machine interaction interface, a user can drag and edit waveform feature points, the waveform feature self-adaptive reconstruction unit generates a corrected waveform according to the adjusted feature points, the format storage and reading unit stores the adjusted waveform into a standard format file, and the signal acquisition and communication module sends the standard format file to an external diagnosis system. The application integrates mechanical characteristic test and diagnosis algorithm verification functions, and solves technical problems, such as dependence of diagnosis algorithm verification on field test data, insufficient fault sample coverage and non-reproducibility in the prior art.

The present application relates to the field of printed circuit board processing technology, and more particularly to a colloidal palladium activator and its preparation method and chemical copper deposition process. A colloidal palladium activator, by mass concentration, includes the following preparation raw materials: palladium chloride 2-3g / L, stannous chloride 170-210g / L, hydrochloric acid solution 150-180mL / L, sodium chloride 170-200g / L, wetting agent 3-5g / L, stabilizer 4-7g / L, antioxidant 1-3g / L, and the remainder is deionized water. The colloidal palladium activator of the present application shows excellent performance in terms of stability, degumming, active performance, copper deposition speed and backlight level, which can improve the quality and production efficiency of printed circuit boards, and has significant economic and social benefits.

The invention provides an ex-situ activation method of a bifunctional hydrogenation catalyst, which comprises the following steps: in an ex-situ activation process, an inorganic sulfur compound and an inorganic nitrogen compound are adopted to complete vulcanization and passivation processes of the hydrogenation bifunctional catalyst, so that organic matters are prevented from remaining in micropore channels of the catalyst; the self-heating tolerance of the catalyst is improved; the raw oil can be directly heated and introduced for starting operation, so that the starting time of an industrial device is greatly shortened, and the temperature runaway risk caused by over-high catalyst activity is effectively reduced.

The invention relates to an ex-situ activation continuous production method of an oxidation-state hydrocracking catalyst. The method comprises the following steps: step 1, continuously inputting the oxidation-state hydrocracking catalyst into a moving bed reactor; step 2, arranging an inert activation atmosphere in the moving bed reactor; 3, spraying an inorganic activator solution into the moving bed reactor, and keeping the inorganic activator and the oxidation-state hydrocracking catalyst to move in the same direction; step 4, controlling the pressure, temperature and time of the activation reaction to perform activation treatment: controlling the operation pressure in the moving bed reactor to be 0.01-15MPa and the operation temperature to be 60-360 DEG C to perform activation treatment for 4-12 hours; and step 5, obtaining the activated hydrocracking catalyst. According to the present invention, the oxidation state hydrocracking catalyst can integrally complete the vulcanization and passivation processes in the activation reactor, the operation is simple, the continuous production is achieved, the efficiency is substantially improved compared with the batch reactor of the same scale, and the catalyst has characteristics of high self-heating stability and easy storage, transportation and filling.

The invention relates to the technical field of coke ovens, and discloses a method for shortening the starting time of a coke oven circulating ammonia water system, the coke oven system and the circulating ammonia water system are connected, a steam pipeline is arranged in a coking vertical tar and ammonia water separation tank in the circulating ammonia water system, and before the coke oven is started, steam is introduced into the steam pipeline to heat circulating ammonia water; the heating time for raising the temperature of the circulating ammonia water to the set temperature is shortened by adding a heating node of the circulating ammonia water; by increasing the temperature of the circulating ammonia water, the normal requirement of coaling of the coke oven can be quickly met, the conventional circulating ammonia water system needs 6-7 days of circulating preparation time, and the normal working requirement of the coke oven can be met only by 1-2 days after the fixed steam pipeline is additionally arranged, so that the working time of the circulating ammonia water system of the coke oven is greatly shortened, and the working efficiency is improved. The cost is reduced for enterprises, and the benefits are improved.

The invention relates to the technical field of automotive electronics, in particular to a point cloud pedestrian recognition and tracking method based on speed fluctuation characteristics, a sensing system and a vehicle, and the method comprises the following specific steps: S1, data acquisition and preprocessing; s2, estimating the overall movement speed of the target; s3, speed fluctuation feature extraction; s4, target classification based on multiple features; s5, an improved tracking management strategy; s6, performing tracking management on the classified targets; the sensing system comprises a memory and a processor, computer programs are stored in the memory, and the processor executes the computer programs and instructions of the computer programs; the vehicle is specifically a vehicle carrying the sensing system. A'micro-motion target 'is used as an independent tracking object, so that the problem that a tracking trajectory is lost and then restarted due to the fact that pedestrians are momentarily static is effectively avoided, a smoother and more continuous trajectory is formed, and more reliable information is provided for a downstream prediction and decision-making module.

The present disclosure provides a video playback method, device, electronic device and storage medium. When a first video meets a playback start condition, a player that is recovered from a second video played before the first video and used when the second video is played can be obtained as an initial player, and then a first configuration file of the first video can be obtained. Based on the first configuration file and the initial player, the first video can be played. In this way, through the reuse of the player, the creation of the player in the video playback stage can be omitted, thereby greatly reducing the waiting time during video playback, reducing the consumption of page resources, helping to improve the loading efficiency of the video, reducing the video start time, quickly realizing the video playback, and improving the video playback effect.

The invention belongs to the field of circulating pump motors, and discloses a circulating pump motor with variable starting torque, which consists of a variable-torque double-side induction rotor and a full-closed type starting iron core, and is characterized in that the variable-torque double-side induction rotor consists of an inclined T-shaped starting copper rod, an inclined T-shaped auxiliary starting copper rod and a variable-torque double-side induction rotor iron core; the device is small in size, high in power factor, easy to assemble, convenient to maintain in the later period, capable of effectively shortening the starting time, capable of monitoring the running state of the variable-torque double-side induction rotor in real time, capable of dynamically adjusting the torque and large in power safety margin.

The utility model provides an oil consumption reduction control system for a hybrid electric vehicle, and relates to the technical field of hybrid electric vehicles, the oil consumption reduction control system comprises a vehicle control unit, a power battery, and a driving motor and an engine which are connected with the vehicle control unit; the system further comprises a driving mode selection module. The driving mode selection module comprises an SOC obtaining sub-module, an SOC obtaining sub-module and an SOC obtaining sub-module, wherein the SOC obtaining sub-module is connected with the vehicle control unit and the power battery; and the accelerator opening degree acquisition sub-module is connected with the vehicle control unit. The driving motor is used for driving the vehicle to achieve the purpose of reducing energy consumption, meanwhile, the engine can drive the vehicle when the driving motor cannot independently drive the vehicle, the purpose of reducing energy consumption is achieved while the driving quality of the vehicle is guaranteed, and the practicability and the intelligent degree of the hybrid new energy vehicle are improved.

This invention discloses a starter voltage build-up control method, device, and system based on power boundary analysis and compensation, belonging to the field of motor control. The method includes: acquiring the current parameters of the starter during the voltage build-up process, discretizing them to obtain the current time... k The rate of change of current; based on the first voltage boundary and the second voltage boundary, within the preset current safety margin, the compensation value of the current dynamic component is calculated; the maximum current change in the current switching cycle is calculated based on the compensation value of the current dynamic component; based on the maximum current change... k Current rate compensation is performed based on the rate of change of current at any given time. Key factors such as the rate of change of current, motor speed, and load characteristics are considered to achieve rapid and stable voltage establishment under different speed conditions.

The clutch plate type built-in transmission manual control front and back gear shifting self-adaptive electric driving system comprises a motor, a speed change assembly and a differential mechanism, the speed change assembly comprises a main shaft, a shaft sleeve, a frame clutch plate mechanism, a self-adaptive transmission sensing mechanism and a manual control reversing shaft assembly, the reverse gear function is achieved, and meanwhile gear shifting response is rapid. The self-adaptive mechanical transmission has the advantage of self-adaptive mechanical transmission, switching and maintaining of a low-speed gear and a high-speed gear are achieved under the combined action of traction force and running resistance, high driving torque can be provided in a constant torque area, and high rotating speed can be provided in a constant power area; and low-speed, large-torque and high-efficiency requirements of various complex working conditions of vehicle acceleration, climbing and high-speed driving can be met. Each clutch unit axially moves back and forth in the frame clutch disc mechanism in an elastic pressure-equalizing sorting mode under the combined acting force of traction force and driving resistance, and work tasks such as power transmission, non-power transmission, transmission direction change and power distribution are completed.

The biometric authentication system of the present invention comprises a server (2) for storing pre-registered biometric information, i.e., registered biometric information, in correspondence with identification information, and a biometric authentication device (1) for performing biometric authentication. The biometric authentication device (1) comprises a storage unit (15) for storing a plurality of registered biometric information, a sensor (12) for acquiring a user's biometric information as input biometric information, an input device (11) for acquiring the user's identification information, and a checking unit (14) for checking the registered biometric information and the input biometric information. The checking unit (14) determines whether the user's identification information has been acquired. If the user's identification information has not been acquired, the checking unit (14) performs a one-to-many authentication by checking the plurality of registered biometric information stored in the storage unit (15) with the input biometric information. If the user's identification information has been acquired, the checking unit acquires the registered biometric information corresponding to the user's identification information from the server and performs a one-to-one authentication using the acquired registered biometric information. In addition, the checking unit (14) causes a transceiver (16) to receive a plurality of registered biometric information for the one-to-many authentication before the sensor (1) acquires the input biometric information.

The embodiment of the utility model provides a flue gas emission device, and belongs to the technical field of desulfurization and denitrification. The flue gas emission device comprises a first desulfurization and denitrification device which is provided with a first inlet flue gas header pipe; the second desulfurization and denitrification device is provided with a second inlet flue gas header pipe; a flue gas outlet pipeline of the first heating furnace is connected with the first inlet flue gas main pipe; a flue gas outlet pipeline of the second heating furnace is connected with the second inlet flue gas main pipe; a first flue gas cylinder and a second flue gas cylinder; an air inlet of the first flue gas cylinder is communicated with the first desulfurization and denitrification device through a first flue gas discharge pipeline; the air inlet of the second flue gas cylinder is communicated with the second desulfurization and denitrification device through a second flue gas discharge pipeline; and the communicating pipe is communicated with the two inlet flue gas main pipes and is provided with a first valve and a second valve. The flue gas discharge device can ensure that the index of discharged flue gas is qualified, and two desulfurization and denitrification devices are mutually standby.