37results about How to "No transition" patented technology

The invention provides a control method and device of a whole vehicle controller and a whole vehicle control method and system. The control method of a whole vehicle controller comprises a step of storing the driving parameter of a vehicle in a driving process, a step of judging whether whole vehicle controller is normally powered and initialized or is failed to trigger the initialization after controller reset according to the stored driving parameter when the whole vehicle controller of the vehicle is initialized to run, and a step of controlling the whole vehicle controller to switch to an operation state before reset when the condition that the whole vehicle triggers the controller reset due to a failure is judged. Through the control method and device of a whole vehicle controller and the whole vehicle control method and system, the stable operation of the whole vehicle controller can be ensured, at the same time the continuity of a controller operating state can be ensured, and thus the drivability of the vehicle is not affected.

The invention relates to a hierarchical virtual closed-loop control method and system for a turntable. The method comprises: writing a closed-loop function of each loop in the closed-loop system, wherein the closed-loop functions are hierarchically independent, and each loop comprises a position loop, a speed loop and a current loop; and determining a closed-loop mode and selecting a closed-loop function according to the corresponding closed-loop mode for closing loops, wherein the closed-loop mode comprises a position loop closed-loop mode, a speed loop closed-loop mode and a current loop closed-loop mode. The hierarchical virtual closed-loop control method and system for the turntable solve the problem of complex multi-loop function nested debugging in the prior art.

The invention relates to a correction method of an LED display screen based on a reference object. The method includes: manufacturing a correction reference object, forming new to-be-corrected displayscreens by a plurality of to-be-corrected display screens and the reference object in sequence, performing independent acquisition and correction on the plurality of new to-be-corrected display screens in sequence, correcting correction coefficients of the plurality of to-be-corrected display screens based on a correction coefficient of the reference object, and regarding the corrected correctioncoefficients as final correction coefficients of the to-be-detected display screens. According to the method, each time of independent correction has the same effective optical reference object, theoptical transfer characteristic is achieved, random splicing of multiple corrected display screens can be realized, the problem of poor splicing effect after single-box correction is solved, the correction efficiency is greatly improved, and the method is applicable to engineering application.

The invention discloses a dynamically adaptive Beidou sub-meter location service comprehensive coverage method. The method comprises the steps that reference stations distributed in an area are used to calculate the pseudorange correction number of a single base station; the area is divided into several sub-areas; the pseudorange correction number of the center and four vertices of each sub-area is calculated; the gradient surface of the pseudorange correction number of the area is constructed; the change rate of the pseudorange correction number gradient of the area is analyzed; the pseudorange correction number of the uncovered area of the base station is estimated; whether the change rate of the pseudorange correction number gradient of two sub-areas is greater than 1 / 24000 is judged; the automatically adjusted sub-area division size is used to divide the area into a number of small areas; and the pseudorange correction number gradient value of the area is used as the pseudorange correction number of the sub-area and is sent to a user for positioning. According to the invention, the user is prevented from abrupt change of positioning accuracy during use, and sub-meter location service comprehensive coverage is realized.

The invention discloses a method for improving the flow measurement error consistency of a time difference type ultrasonic heat meter. The method comprises the steps that the moment of valve opening or closing is accurately judged by monitoring the change of original sampling data delta T of the propagation time difference of ultrasound at the moment of valve opening or closing in fair current and adverse current in water during measuring; meanwhile, main cumulative flow data and temporary cumulative flow data are introduced, only temporary cumulative flow which is really measured through judgment will be supplemented into main cumulative flow, or else, the temporary cumulative flow is abandoned, in this way, the accuracy of the cumulative volume which is metered in the whole measuring process is guaranteed, and additional metering is avoided. According to the method, it can be guaranteed that metering errors will not jump, and therefore the flow error consistency is improved. Besides, the problem that the flow errors are prone to jump on different detection tables, and that is, the error consistency is poor due to the influence by the detection tables is solved.

The invention relates to a construction method of tower transmission iron tower foundation large-diameter underwater cast-in-place piles. The method comprises, during mud retaining wall drilling and pile casting, constructing a mud retaining wall, wherein the inside of mud retaining wall forms a pile hole, and coaxially mounting a shaft casing on the ground at the top end of the pile hole. The method comprises the steps of (1) exploring the position of a drift sand layer; (2) mounting the spliced type casing on a steel reinforcement cage of the position where the drift sand layer is formed; (3) mounting steel reinforcement cages; (4) isolating the drift sand layer; (5) performing construction of concrete cast-in-place piles. The construction method of the tower transmission iron tower foundation large-diameter underwater cast-in-place piles is applicable to field processing, economical and practical, guarantees the effect of no influence of the drift sand layer on any process as well as the construction progress. The construction method of the tower transmission iron tower foundation large-diameter underwater cast-in-place piles has the advantage of obviously enhancing construction rapidity, practicality, sociality and economical efficiency.

The invention discloses a BBU capacity restoration method used in a storage system. The BBU capacity restoration method comprises the steps of charging a BBU until the BBU is in a cut-off state to obtain a charged BBU; performing standing on the charged BBU until the battery core activity of the BBU reaches a stable state to obtain a first BBU after standing; performing discharging on the first BBU after standing at a constant current of 800mA until the discharging current of the first BBU after standing is zero to obtain a discharged BBU; performing standing on the discharged BBU to obtain asecond BBU after standing, and reading the electric quantity value of the second BBU after standing in the standing process; and when the electric quantity value of the second BBU after standing is equal to an electric quantity rated value of the BBU, stopping standing on the second BBU after standing to obtain a recovered BBU. Through the method, it is ensured that when the system is in power down, the BBU capacity is not jumped, thereby avoiding loss to a user caused by failure data dump in system power down. Correspondingly, the invention discloses a BBU capacity restoration system used inthe storage system, wherein the capacity restoration system has the abovementioned beneficial effects.

The invention provides a panorama-based outdoor movement augmented reality method for accurately marking a POI. A panorama is generated on line at the current site where a user is located, and a POI template image which is placed in a server side in advance is matched to the panorama generated on line through a template matching algorithm; meanwhile, the POI template image is roughly positioned in the panorama by calculating the azimuth angle between the current position and the POI in the process, and the searching range of the template matching algorithm is effectively decreased; after recognition is finished, the user can select an interesting area in the generated panorama, personalized augmented reality labels such as words, sounds and a GPS are added to the interesting area, and the interesting area is uploaded to a server to be used as POI information base expansion. According to the panorama-based outdoor movement augmented reality method for accurately marking the POI, the brand-new implementation way is provided for outdoor movement augmented reality, and the user can visually obtain the augmented reality information and deepen the understanding of the surrounding environment by accurately marking POI information on the panorama of the current position where the user is located.