10results about How to "Implement update" patented technology

According to the multi-source information fusion robot positioning method and system for the unstructured environment provided by the invention, fusion processing is carried out on multi-source information data such as laser point cloud, environment image information and acceleration which are acquired in real time, so that the multi-source information fusion robot positioning method and system for the unstructured environment can be realized in a severe weather state and a dynamic unstructured environment. Carrying out high-robustness real-time positioning under the condition of violent illumination change; in a geometrically degraded roadway area, registration positioning of laser point cloud emission fails due to lack of enough external characteristics, and at the moment, the visual positioning module can still work normally and complete robot repositioning by detecting matched image information; in an environment lacking enough illumination, the laser point cloud and acceleration information can still provide enough positioning fusion data input for the computing unit.

This application discloses a page display method, apparatus, device, and computer-readable storage medium. The method includes: acquiring a target event task, wherein the target event task is triggered by a change in the state information of a target component of the page; the target event task includes N computational tasks, where N is an integer greater than 1; determining M worker threads with the minimum resource consumption in a worker thread pool using a Dinic algorithm, where M is an integer greater than 1 and less than or equal to N; executing the N computational tasks using the M worker threads to obtain the execution result of the target event task; and updating the target component displayed on the page using the execution result. This application can improve the efficiency of event task processing.

The application provides a road slope measurement method and system based on mobile crowd sensing, comprising the following steps: S1: dividing a to-be-predicted area and a predicted area, assigning a data collection task, and collecting data to the cloud; S2: after the cloud multi-modal sensing data is time-space aligned, performing frame-by-frame correlation matrix operation, fusing the coordinate and the attitude vector of the mobile device, and dividing the space position into a training set and a test set after removing data noise; S3: extracting time-domain features and frequency-domain features from the training set and the test set data, and calculating individual independent features; S4: training and testing the model by using the individual independent features, and further performing data aggregation and result optimization on the preliminary prediction result. The application is beneficial to efficiently and low-costly realizing large-scale road slope sensing, beneficial to establishing a city three-dimensional map, further enriching the content of the current digital map, and shortening the data updating cycle.

This application discloses a method, device, terminal, and storage medium for simulating the electrical characteristics of integrated circuits. The method includes acquiring a model of the integrated circuit to be simulated; meshing the model to obtain an integrated circuit mesh dataset composed of multiple mesh cells; constructing corresponding charge basis functions and current basis functions based on the mesh cells; using the charge basis functions as the fusion object, progressively merging and updating the charge basis functions; simultaneously, merging and updating the current basis functions through geometric mapping; after all fusion and updates are completed, acquiring the integrated circuit basis function dataset; and performing electrical characteristic simulation on the integrated circuit to be simulated based on the integrated circuit basis function dataset. This achieves rapid updating and low-order representation of complex coupling capacitance matrices, reducing the theoretical complexity from O(n^2) to O(n^2) of traditional back-end order reduction methods. 3 The time complexity is reduced to O(n), while the model accuracy and order reduction effect are maintained, and the efficiency of model order reduction is greatly improved.

This application discloses a cooling tower cleaning device, which includes a connecting pipeline with interconnected components: a first port extending into and communicating with the interior of the cooling tower; and a second port, the height of which is lower than that of the first port, connected to a water source interface. The second port is configured to be sequentially set to a first state and a second state during normal operation of the cooling tower. In the first state, the second port is connected to the water source interface to replenish water to the cooling tower and expel gas from the connecting pipeline. In the second state, the second port is disconnected from the water source interface and connected to the external environment to discharge liquid carrying impurities from the cooling tower based on a negative pressure siphon effect. The aim is to solve the technical problem of how to effectively clean a cooling tower while ensuring normal equipment operation.

The application discloses a data processing method, related equipment, a storage medium and a program product. When responding to an update request for target data, the method determines a target index of the target data, an update strategy of the target index, and an index tree associated with the update request. Different nodes in the index tree contain indexes stored in different storage spaces. Based on the target index and the update strategy, the target index belonging to the target node can be determined from the index tree, the to-be-updated index of the node layer and the new node layer corresponding to the to-be-updated index are required in the process of updating the target index. The to-be-updated index is moved and stored in the storage space corresponding to the new node layer, the target index is updated in the storage space corresponding to the node layer where the target node is located, and the target data is updated in the storage position indicated by the target index. The consumption of I / O resources and CPU resources in the request response process can be effectively reduced, thereby reducing the business deployment cost and improving the request response efficiency.

The application relates to an optical path difference calculation method and device of a convolution acceleration system, equipment and a storage medium, comprising the following steps: acquiring a first current amplitude output by a real convolution acceleration system in a state where the optical path difference of two light paths is not 0, the real convolution acceleration system realizing convolution acceleration through an IQ modulator, a frequency mixer and a balanced detector; acquiring a theoretical current amplitude output by a simulation convolution acceleration system with the same structure as the real convolution acceleration system in a state where the optical path difference of two light paths is 0; based on the corresponding waveform similar state between the first current amplitude and the theoretical current amplitude, adjusting the optical path in the simulation convolution acceleration system to different degrees to update the theoretical current amplitude until a second current amplitude with a minimum difference value is obtained; and taking the optical path difference corresponding to the second current amplitude as the actual optical path difference existing in the real convolution acceleration system, so that the real convolution acceleration system can accurately complete convolution calculation.

This invention relates to an online parameter identification method for UAV fuel cells based on rolling convex optimization, belonging to the field of UAV energy management. The method involves: establishing a fuel cell model; constructing a nonlinear model convexification method; and achieving convexification of the fuel cell model through equivalent transformation and convexification processing. Based on the fuel cell voltage and current measurement data collected during UAV flight, a finite-time window rolling mechanism is designed. Within this time window, an online identification dataset is constructed. Physical boundaries and power constraints are introduced to construct rolling convex optimization sub-problems, decomposing the UAV fuel cell model parameter identification problem under the entire flight mission profile into a series of convex optimization sub-problems within a finite-time window. Solving the UAV fuel cell model parameter identification problem within a single finite-time window yields the fuel cell model parameters at that moment. Based on the designed finite-time window rolling mechanism, continuous online identification of the fuel cell model parameters is achieved.

The embodiment of the present application discloses a kind of nonvolatile memory data structure updating method and electronic control unit.Therein, the updating method includes: the nonvolatile memory block in nonvolatile memory is loaded to volatile memory;First version information in the nonvolatile memory block is extracted;The extracted first version information is compared with the second version information of current firmware;According to the comparison result, the nonvolatile memory block is updated;And the updated nonvolatile memory block is written back from the volatile memory in the nonvolatile memory.This embodiment embeds version information in nonvolatile memory block, and updates nonvolatile memory block based on this, so as to improve the updating efficiency.

The application provides a working method of a self-air-supply type artificial muscle wearable auxiliary device, which comprises a flexible artificial muscle mechanism, a leg "electric-gas" path control mechanism and a foot energy supply mechanism connected in sequence through a hose. The application uses the hose as a connecting pipeline of the flexible artificial muscle mechanism, the leg "electric-gas" path control mechanism and the foot energy supply mechanism, and the shoe pad of the foot energy supply mechanism and the flexible artificial muscle mechanism of the driving device are also flexible devices, so that the overall device has good flexibility, and the coordination and safety of human-computer interaction are ensured.