Abstract: The present application provides a method and system for calibration of structural parameters and construction of an affine coordinate system of a vision measurement system. The method comprises the following steps: S1, for the same image, performing bundle adjustment on front points and corresponding image points to acquire rear intersection point coordinates; S2, acquiring world coordinate of a front principal point corresponding to an intersection point; S3, performing the steps S1 and S2 cyclically by utilizing a plurality of different calibrated images to acquire a plurality of pairs of intersection point coordinates and world coordinates of front projection points; S4, performing tangent co-spherical second intersection adjustment by utilizing the pairs of intersection point coordinate and world coordinate of front projection point to acquire structural parameters and coordinate of rotation center of the pan-tilt of the vision measurement system; and S5, establishing an affine space coordinate system.

Abstract: The disclosure provides a door switch that improves visibility. The door switch includes an actuator and a sensor. In addition, the door switch is installed so that when a door is closed, a surface of the sensor and an opposite surface of the actuator are in contact with or close to each other, and when the door is open, the surface of the sensor and the opposite surface of the actuator are separated from each other. The actuator outputs a detection signal. A display part for indicating a reception state of the detection signal is formed on the surface of the sensor. The surface of the sensor has a non-opposite region, wherein the non-opposite region is at least a part of the display part not opposite to the opposite surface of the actuator in the reception state.

Abstract: The door switch (1) includes an actuator (20) and a sensor (10). When a door is closed, a front surface (S1) of the sensor (10) and an opposite surface of the actuator (20) are in contact with each other, and separated when the door is open. The sensor (10) includes a light source part (150) for emitting detection light according to a reception state of a detection signal outputted from the actuator, a collector (122) for collecting the detection light, a diffuse light guide part (123) formed to be connected to the collector and for diffusing and emitting the detection light collected by the collector, and a back surface display part (121) formed on a back surface (B1) side of the sensor to be in contact with the diffuse light guide part and having a main surface (125) for emitting the detection light emitted from the diffuse light guide part.

Abstract: The door switch (1) includes an actuator (20) and a sensor (10). When a door is closed, a front surface (S1) of the sensor (10) and an opposite surface of the actuator (20) are in contact with each other, and separated when the door is open. The sensor (10) includes a light source part (150) for emitting detection light according to a reception state of a detection signal outputted from the actuator, a collector (122) for collecting the detection light, a diffuse light guide part (123) formed to be connected to the collector and for diffusing and emitting the detection light collected by the collector, and a back surface display part (121) formed on a back surface (B1) side of the sensor to be in contact with the diffuse light guide part and having a main surface (125) for emitting the detection light emitted from the diffuse light guide part.

Abstract: The door switch (1) includes an actuator (20) and a sensor (10). When a door is closed, a front surface (S1) of the sensor (10) and an opposite surface of the actuator (20) are in contact with each other, and separated when the door is open. The sensor (10) includes a light source part (150) for emitting detection light according to a reception state of a detection signal outputted from the actuator, a collector (122) for collecting the detection light, a diffuse light guide part (123) formed to be connected to the collector and for diffusing and emitting the detection light collected by the collector, and a back surface display part (121) formed on a back surface (B1) side of the sensor to be in contact with the diffuse light guide part and having a main surface (125) for emitting the detection light emitted from the diffuse light guide part.

Abstract: The disclosure provides a door switch that improves visibility. The door switch includes an actuator and a sensor. In addition, the door switch is installed so that when a door is closed, a surface of the sensor and an opposite surface of the actuator are in contact with or close to each other, and when the door is open, the surface of the sensor and the opposite surface of the actuator are separated from each other. The actuator outputs a detection signal. A display part for indicating a reception state of the detection signal is formed on the surface of the sensor. The surface of the sensor has a non-opposite region, wherein the non-opposite region is at least a part of the display part not opposite to the opposite surface of the actuator in the reception state.