4results about How to "Reduce write operations" patented technology

The invention relates to a diagnostic data dump method and device, equipment and a medium. The method comprises the steps that diagnosis data of a single fault event are stored in a target buffer area in an event buffer area array, the target buffer area is only used for storing the diagnosis data of the single fault event, and the event buffer area array is located in a running memory; when a dump indication signal is monitored, the diagnostic data stored in the target buffer area is written into a corresponding target storage block in a nonvolatile memory, and each storage block in the nonvolatile memory corresponds to each buffer area in the event buffer area array in a one-to-one mode. According to the invention, the write-in operation during the dump of the diagnostic data can be reduced, and the dump performance of the diagnostic data is improved.

The embodiment of the invention discloses a metering error compensation method and device based on a post-stage load of an electric energy meter, and the method comprises the steps: obtaining configuration parameters preset in a storage of the electric energy meter, the physical state of a relay, and the metering data of each phase; setting a reactive compensation value of a metering loop to be zero and then sending the reactive compensation value to a metering chip, if the relay is in a closed state, calculating to obtain capacitive reactive power based on configuration parameters in the electric energy meter memory and the metering data of each phase, and sending the capacitive reactive power to the metering chip; and reactive offset compensation is carried out based on the data received by the metering chip. According to the application, the physical state of the relay is taken as a judgment basis of compensation enabling, so that the power utilization condition of a user side can be reflected more intuitively, invalid compensation on a no-load capacitor in a power-off state is further avoided, and the accuracy of power factor assessment, reactive compensation strategy and transformer area line loss analysis is improved.

The invention relates to a list reordering method and device, computer equipment and a computer readable storage medium. Comprising the steps that a reordered element list is received, the reordered element list comprises a plurality of elements arranged in sequence, and each element corresponds to an element identifier and an original ordering value; adding a sorting state value for each element in the element list, wherein the initial value of the sorting state value is consistent with the original sorting value corresponding to the element; based on the element list, correcting the sorting state value of at least one element, and determining a target sorting state value of each element in the element list; target elements with the original sorting values inconsistent with the target sorting state values are screened out; and according to the element identifier of the target element, taking the target sorting state value of the target element as an updated sorting value, and writing the updated sorting value into a database. By adopting the method, the submission times of the back-end request can be reduced, and the network pressure is relieved; the number of times of updating data in the database can be reduced, and database resources are saved; and the sorting value adjustment efficiency is improved.

This invention discloses a drag-and-drop sorting method for list elements based on multi-level grouping in a device management platform. Specifically, it includes: receiving a drag-and-drop sorting request initiated by a client; parsing the request to obtain the object to be inserted (element), the target group (group), the preceding sorting value (a), and the following sorting value (b); determining whether the target group is empty; if empty, initializing the sorting value of the object to be inserted to a preset baseline value; determining the insertion type based on the existence of the preceding and following sorting values ​​(a and b); performing precision detection based on the preceding and following sorting values ​​(a and b); generating a new sorting value for the object to be inserted using the corresponding sorting value calculation model according to the determined insertion type; assigning the new sorting value to the object to be inserted and updating its group to the target group; and writing the updated sorting value and group information into a database to complete the drag-and-drop sorting process.