6results about How to "Fix crash" patented technology

The application relates to the technical field of computer vision, and provides a high-stability virtual object position display method and device. In a mapping stage, the object structure of a virtual scene is acquired, and an exception handling boundary is established; in the exception handling boundary, a virtual object in the virtual scene is regarded as a general engine object, coordinate data corresponding to the general engine object is acquired based on the object structure, and a path graph is drawn according to the coordinate data; the running state of a data processing process in the exception handling boundary is monitored, if running exception is detected in any processing period, the exception data corresponding to the running exception is discarded; in a virtual scene running stage, the position information of the virtual object is acquired in the exception handling boundary, the position information is matched with the path graph, the relative position of the virtual object in the path graph is determined, and the relative position of the virtual object in the path graph is displayed. Runtime exceptions in memory reading or drawing processes are effectively intercepted and isolated.

The invention provides a method for using radar point cloud data on a large scale, and the method comprises the steps: obtaining the point cloud data of laser radars which are arranged in groups in a detection region, and carrying out the splicing and fusion, thereby obtaining the fusion point cloud data of the detection region; and a plurality of detection target data of the corresponding radar in a detection area are obtained through a target detection algorithm, a tracking target database is established, and a final recognition result is formed by combining pre-fusion and post-fusion, so that the problems of algorithm collapse and misjudgment are effectively solved.

The invention relates to the technical field of electronic data processing, in particular to a multi-task real-time operating system scheduling optimization method for a PPEC controller. The method comprises the following steps: constructing a physical time snapshot of interrupt response by using a hardware timer and a direct memory access unit, and collecting entry and exit moments when a rigid control task is interrupted by a non-control task; calculating time debt based on the interruption physical duration, constructing a space-time mapping model in combination with the power grid reference angular frequency, and converting the time debt into a phase lag angle of a voltage space vector; and comparing the time debt with an atomic operation time threshold value, dynamically switching to a compression mode or a fusing mode according to the time debt and the atomic operation time threshold value, and executing task scheduling according to the selected mode. According to the method, the time drift is mapped into the vector phase error of the physical layer, so that the problems of waveform distortion and control divergence caused by sudden interruption are solved, and the physical synchronization of control is ensured.

This application provides a method and apparatus for automatic power-on / off control of industrial computing devices under abnormal power-on / off conditions, belonging to the field of industrial computing device control technology. It includes: generating a power-down event when a change from a powered-on state to a powered-off state is detected; generating a power-on event when a change from a powered-off state to a powered-on state is detected; acquiring the current operating state of the industrial computing device; and scheduling the execution of the power-down or power-on event according to the current operating state. Through a scheduling mechanism based on power events and device operating state, automatic state recovery and safe start-up / stop of the industrial computing device are achieved under abnormally frequent power-on / off environments, ensuring system stability and data integrity.

The invention provides an intelligent medical digital operating room service system and an application method, and relates to the technical field of digital integration, the service system comprises a main server, the main server is connected with a patient information management platform, an equipment management platform, a display platform and a sub-server, and information interaction is carried out through the main server; the patient information management platform stores patient information including a telephone, an operation plan and operation time; an operation task is generated at the operation time, and patient information is called and transmitted to the main server; the equipment management platform obtains intra-operative equipment involved in the operation scheme from the patient information, obtains the state and the intra-operative image of the intra-operative equipment, gives an alarm when the state is abnormal, and transmits the intra-operative image to the main server; the sub-server receives and stores the intraoperative image, and transmits the intraoperative image to the corresponding film and television terminal when receiving the access request; the display platform receives and displays the patient information and the intraoperative image.

The present invention discloses a test system and method for updating test information in real time. The system is designed with a layered architecture, which includes, from bottom to top, a data access layer, a business logic layer, and a presentation layer. The data access layer is used to initialize a data interface board and provide a data input and output interface for the data interface board; the business logic layer is used to encapsulate business logic according to the technical requirements of a single machine, and to perform data interaction with a single machine under test through the data access layer to implement testing of the single machine under test; the presentation layer belongs to the main thread, and is used to create a test tree and a test thread according to the user's test configuration input; the business logic layer belongs to the test thread, and is used to traverse and execute test items through a test class, and to send the test process information and the test result information to the main thread through a blocking message mechanism for storage and display. The present invention can solve the problem in the prior art that multiple threads simultaneously operate test information, causing illegal memory access, thereby causing system crashes.