6results about How to "Avoid Inaccurate Positioning" patented technology

The application relates to the technical field of self-moving device positioning, and discloses a self-moving device position correction method and device, a self-moving device and a medium, the method comprising: acquiring a working map; the working map comprising initial positioning information of a base station; calculating an offset of the base station according to current positioning information of the base station and the initial positioning information; and when the offset is not greater than a preset threshold, correcting position information of the self-moving device in the working map by using the offset. In the foregoing manner, when the offset of the base station before and after the position change is not greater than the threshold, the position coordinates of the self-moving device are adaptively adjusted by using the offset, the phenomenon of inaccurate positioning of the self-moving device can be avoided after the position of the base station is moved without reconstructing the map, the accuracy of positioning of the self-moving device in the navigation process is ensured, and the application range of the self-moving device is widened.

The invention discloses a power distribution network fault positioning method based on intelligent monitoring terminal topology, and belongs to the technical field of power distribution network fault positioning. The method is characterized by comprising the following steps: step 1, an intelligent monitoring terminal constructs a unified information model; 2, the intelligent monitoring terminal completes an equipment registration process; 3, the master station automatically constructs a topology model reflecting the actual connection relation of the intelligent monitoring terminal; step 4, when a fault occurs, the intelligent monitoring terminal actively reports fault information to the master station; and step 5, the master station determines a fault section. In the power distribution network fault positioning method based on the topology of the intelligent monitoring terminal, the fault section in the power distribution network is judged based on the topology network of the intelligent monitoring terminal, so that the problem that the fault positioning of the power distribution network in the prior art is highly dependent on the primary topology information of the power distribution network line and the switch state of the feeder line is solved. The circuit topology configuration is tedious, the change is frequent, and the main station cannot be updated in time, so that the positioning is inaccurate.

The application provides a positioning and suturing mechanism for meniscus suturing, which comprises a grabbing mechanism, an adjusting mechanism and a limiting mechanism, the adjusting mechanism is arranged on one side of the top end of the grabbing mechanism, the limiting mechanism is arranged on the other side of the top end of the grabbing mechanism, the inside of the adjusting mechanism is provided with a suturing needle structure, and the top end of the limiting mechanism is provided with a positioning mechanism; the suturing needle structure comprises a rotating sleeve, a suturing needle, an extension sleeve, a first extension rod and a second extension rod, the rotating sleeve is movably inserted into the inside of the adjusting mechanism, the suturing needle is movably installed in the inside of the rotating sleeve, the extension sleeve is fixedly installed on the two sides of the surface of the rotating sleeve, the first extension rod is movably installed on the outer end of the extension sleeve, and the second extension rod is movably installed on the outer end of the first extension rod. The device can be adjusted according to the meniscus shape of different patients and accurately position the position to be sutured.

The utility model relates to a portal jib crane amplitude-variable mechanism Beidou positioning detection device, include: main machine, main antenna and from antenna, main antenna and from antenna are connected through a root feeder main machine respectively, main antenna and from antenna are installed in the both sides of mounting support respectively, mounting support is installed on the protective fence of portal jib crane through the connecting support, the protective fence is set up horizontally, the protective fence and mounting support are fixed in the multiple adjustable hole positions on connecting support. The utility model has the beneficial effects that the high-precision positioning directional function of Beidou positioning main machine is utilized, in combination with the setting of double antenna of main antenna and from antenna, the positioning data of gate machine amplitude-variable mechanism can be accurately obtained, and the accuracy and reliability of positioning data are ensured, through the adjustable hole position design on the connecting support, the position and angle of main antenna and from antenna can be conveniently adjusted, and it is ensured that they are fixed in the same plane, same height.

The application discloses a network security vulnerability detection method and system based on cloud security, comprising the following steps: generating a cloud security standard data set; performing heterogeneous hypergraph topology shaping to generate a cloud resource security relationship graph; generating a cloud resource vulnerability feature set; determining the cloud resources and the cloud resource association relationship corresponding to each vulnerability feature to generate a cloud security vulnerability candidate set; performing task collaborative reasoning by using an improved MTLPT model to generate a cloud security vulnerability recognition result; performing cascade instability deduction to generate a cloud security vulnerability association result; calculating a vulnerability risk value and determining a vulnerability risk level to generate a network security vulnerability detection result, and the application improves the accuracy and integrity of network security vulnerability recognition, cloud resource positioning, propagation path analysis and risk classification in a cloud environment.

The application discloses a sound source positioning method, device and equipment and a computer readable storage medium. The sound source positioning method comprises the following steps: collecting a scene image and an audio signal in an environment, and detecting all human body images included in the scene image; determining a current position corresponding to each human body image, and determining a sound source angle of the audio signal; detecting a target position matched with the sound source angle in all the current positions, and outputting a human body image corresponding to the target position. The application improves the accuracy of sound source positioning.