Mine positioning system based on multiple linear regression and positioning method thereof

The invention discloses a mine positioning system based on multiple linear regression and a positioning method thereof. The positioning system comprises an anchor node module, a mobile node module, a positioning formula parameter calculation module, an RSSI value filtering module and an RSSI value positioning module, and a mobile node collects the RSSI value of the broadcast information of an anchor node, carries out regression analysis on data and obtains a positioning formula and parameters; when the system normally works, the mobile node captures the RSSI values of the broadcast information of a plurality of anchor nodes in certain cycle time, the data with relatively low reliability are filtered out by substituting all RSSI values in the filtering module when the cycle time is up, and finally own position is calculated by using a regression equation and parameters and the position is sent to an aboveground monitoring center through the forwarding-direct transfer of the anchor node.

Method for real-time detecting bearing shell vibration by image analysis

The invention discloses a method for analyzing and detecting bearing pad vibration by images, comprising steps as follows: (1) an image acquisition device is installed; (2) based on displayed images, the image acquisition device is fine-tuned until the image effect is the best; (3) correction is carried out on a distortion parameter of the stored images; (4) a computer works out the amplitude of bearing pad vibration by real-time identification and recording of the position of the bearing pad. The method for analyzing and detecting bearing pad vibration by images of the invention automatically record the whole process of bearing pad vibration, gives a warning when vibration amplitude exceeds safety range, shoots the bearing pad by the image acquisition device and adopts a non-contact measurement method without having to make major changes on an original mechanical device or leading detection personnel to approach the device. Compared with the traditional detection device, the invention ...

Automatic recording method for recognising chess manual by image

Device and method for detecting position of object

The invention discloses a device and a method for detecting the position of an object. The device comprises a bracket, an image acquiring device and a video projecting device, wherein the bracket, the image acquiring device and the video projecting device are arranged above an object to be detected; the video projecting device is arranged on the bracket and is adjustable in projecting angle; and the image acquiring device is used for acquiring a projected image on the surface of the object to be detected and is arranged on the bracket and connected with a computer through a communication cable. The method comprises the following steps: using the video projecting device to project a concentric circle or other figures on the object to be detected; using the acquired projecting image to adjust the angle of lenses of the projecting device and the image acquiring device and making the angle perpendicular to the object to be detected; because the size of the image projecting on the object changes ...

Ground combined type rapid drainage system for underground garage opening

The invention provides a ground combined type rapid drainage system for an underground garage opening. The problems that an existing garage drainage system is poor in drainage effect and has potential safety hazards are solved. A ground combined type rapid drainage system for an underground garage opening comprises an intercepting ditch arranged in front of a garage door, a bottom plate is arranged at the lower end of the intercepting ditch, a vegetation layer, a soil layer, a filtering layer, a drainage layer and a drainage channel are sequentially arranged on the bottom plate from top to bottom, a jet pump is arranged in the drainage layer, and a water collecting tank is arranged at the upper end of the garage door. Water guide buckets are arranged on the two sides of the garage door, rotating wheels are rotationally arranged in the water guide buckets, the water collecting tank is communicated with the side faces of the water guide buckets through flow guide pipes, the lower ends of ...

Pipe jacking construction vertical shaft opening grouting structure and using method thereof

The invention discloses a grouting structure for a vertical shaft opening in pipe jacking construction. An annular space is formed between a hole formed by jacking when a machine head of a jacking pipe advances and a pipe joint of the jacking pipe; a grouting pump is arranged on the ground outside the vertical shaft, and an outlet of the grouting pump is connected with a grouting hose; a soil body reinforcing area is arranged at the rear part of the annular space around the annular space; an annular pipe is pre-embedded in the front end of the soil well wall area around the annular space and provided with a slurry outlet, and the slurry outlet communicates with the annular space. The annular pipe is connected with a grouting connector through a connecting pipe, the grouting connector is fixed to the shaft wall of the vertical shaft and connected with a grouting hose, and a hole annular sealing device is arranged at the hole around the annular space. By arranging the soil body reinforcing ...

Mine positioning system based on multiple linear regression and positioning method thereof

The invention discloses a mine positioning system based on multiple linear regression and a positioning method thereof. The positioning system comprises an anchor node module, a mobile node module, a positioning formula parameter calculation module, an RSSI value filtering module and an RSSI value positioning module, and a mobile node collects the RSSI value of the broadcast information of an anchor node, carries out regression analysis on data and obtains a positioning formula and parameters; when the system normally works, the mobile node captures the RSSI values of the broadcast information of a plurality of anchor nodes in certain cycle time, the data with relatively low reliability are filtered out by substituting all RSSI values in the filtering module when the cycle time is up, andfinally own position is calculated by using a regression equation and parameters and the position is sent to an aboveground monitoring center through the forwarding-direct transfer of the anchor node. The ...

Method for real-time detecting bearing shell vibration by image analysis

The invention discloses a method for analyzing and detecting bearing pad vibration by images, comprising steps as follows: (1) an image acquisition device is installed; (2) based on displayed images, the image acquisition device is fine-tuned until the image effect is the best; (3) correction is carried out on a distortion parameter of the stored images; (4) a computer works out the amplitude of bearing pad vibration by real-time identification and recording of the position of the bearing pad. The method for analyzing and detecting bearing pad vibration by images of the invention automatically record the whole process of bearing pad vibration, gives a warning when vibration amplitude exceeds safety range, shoots the bearing pad by the image acquisition device and adopts a non-contact measurement method without having to make major changes on an original mechanical device or leading detection personnel to approach the device. Compared with the traditional detection device, the invention ...