40results about How to "Reduce positioning time" patented technology

The invention discloses a method and device for positioning a touch point, and belongs to the technical field of touch. The method comprises the following steps: determining at least one candidate region in an infrared touch screen; determining related regions of the candidate region from a touch region in multiple scanning directions for each candidate region from at least one candidate region; judging whether the related regions in at least two scanning directions are designated related regions in the related region of the candidate region or not; intersecting center lines of related regions in any two scanning directions in at least two scanning directions to obtain at least one candidate intersection point when related regions in at least two scanning directions in the related regions of the candidate region are designated related regions; and determining a true touch point in the infrared touch screen from at least one candidate intersection point. The method can be used for shortening the time consumption for positioning the touch point and improving the response speed of the touch point.

The invention provides a method and device for determining the position of an access point, and the method comprises the steps: obtaining signal intensities detected by a plurality of network signal detection devices in a preset access point signal coverage at the same time; obtaining the distances from the network signal detection devices to a preset access point according to the signal intensities; constructing a plurality of spherical surfaces according to the distances, and obtaining the connection lines among intersection points of the plurality of spherical surfaces; obtaining detected signal intensities at the same time after the network signal detection devices moves along the connection lines; and determining the position of the preset access point according to the detected signal intensities after the network signal detection devices moves along the connection lines. The method carries out two-time simultaneous obtaining of the signal intensities of the preset access point through the plurality of network signal detection device, so as to determine the position of the access point. The method achieves the quick and accurate positioning of the access point, gets rid of the limits from the inaccurate description of marks and files of construction drawings, is less in positioning time, and improves work efficiency.

The invention discloses a fast fingerprint positioning method based on PQ and CNN. First, an ADCPM fingerprint matrix for subsequent fingerprint matching is designed. When the scale of the fingerprint database is small, a fast positioning algorithm based on PQ is used to calculate the physical location corresponding to the fingerprint. When the scale of the fingerprint database is large, the output obtained by the fast positioning algorithm based on CNN is the two-dimensional coordinates of the vector to be positioned. The invention is not only beneficial to improve the online positioning speed under the large-scale fingerprint database, but also maintains high positioning accuracy.

The invention provides a WLAN (wireless local area network) positioning method and a positioning server for positioning a third part. The positioning server receives a positioning request launched by the third part, searching an MAC (media access control) address corresponding to a WLAN networking account of a terminal to be positioned, inquiring an IP (internet protocol) address corresponding to the WLAN networking account; inquiring the corresponding relation between the IP address and the MAC address of an AP (access point), acquiring an MAC address list of the AP; acquiring a list of WLAN terminals related to the AP currently in the MAC address list of the AP; searching the list of the WLAN terminals according the MAC address of the terminal to be positioned, and finding out the MAC address of the AP related to the terminal to be positioned, searching longitude and latitude of the MAC address of the AP according to the corresponding relation between the longitude and the latitude and the MAC address of the AP, and acquiring the position of the terminal to be positioned, wherein the MAC address list of the AP includes the MAC address of an AP into which the terminal to be positioned accesses. Positioning time length is reduced and operation complexity of positioning of the third part is reduced.

The invention provides a positioning tool and an electrical box assembly line provided with the same. The positioning tool comprises a tool plate, a plurality of first positioning structures which arearranged on the tool plate and are arranges at a radiator in a penetrating mode to position the radiator, a plurality of second positioning structures which are arranged on the tool plate and encircle a positioning space used for positioning an electrical box. Limiting concave portions used for limiting the electrical box are arranged on one sides, away from the tool plate, of the second positioning structures, and therefore part of the electrical box can be limited in the limiting concave portions, and electrical box positioning by the second positioning structure can be achieved. The problem in the prior art of low assembly efficiency of radiators and electrical boxes is effectively solved.

The invention relates to the technical field of automobile manufacturing, in particular to a chassis and vehicle body assembly system and a process thereof. The chassis and body assembly system comprises a bottom frame and a main tray. The main tray comprises a front tray, a middle tray and a rear tray. The front tray, the middle tray and the rear tray are sequentially arranged on the top of the bottom frame along the front-rear direction of the total tray. The distance between the front tray and the rear tray can be adjusted along the front-rear direction of the total tray. The height of therear tray can be adjusted along the height direction of the total tray. The front tray, one or more of the middle tray and the rear tray are provided with a combined positioning tip. The chassis and body assembly process adopts the chassis and body assembly system. The purpose of the invention is to provide a chassis and body assembly system and a process thereof, so as to solve the technical problem that the collinear production adjustment period of different vehicle types in the prior art is longer.

The application discloses a method and device for starting a set-top box. The method includes: creating several middleware thread functions in response to a start-up instruction of the set-top box; The file access mark corresponding to the data file, and save the file access mark; only when it is determined that the middleware thread function successfully accesses the initialization data file, delete the saved file access mark corresponding to the initialization data file. This application saves the file access marks corresponding to the data files that have not been successfully accessed, so that it is easy to know the initialization data files that have problems later, without having to check the partition data one by one, which greatly reduces the time-consuming locating wrong data.