| 摘要 |
FIELD: sports.SUBSTANCE: system of fixing a goal at the football gates comprises football gates having vertical tubular racks connected by the tubular crossbar, a frame structure mounted on the ground, consisting of two longitudinal elements coupled at the lower part with the vertical racks, and the transverse element connecting the longitudinal elements, the mesh fixed in the vertical plane to the vertical racks and the crossbar and horizontally on the frame structure and turned using the additional elements into the horizontal area of the gate, the gate line, the sensors in the form of optoelectronic pairs mounted in the gates area with the distance between the parallel beams less than the diameter of the game ball and interacting with the control unit connected to the optoelectronic pairs, sound and light signals mounted on the additional elements. The sensors of the optoelectronic pairs are made in the form of a pair of photoemitter ad photocollector in one sensor and mounted in pairs inside the vertical tubular racks. The first pairs of sensors are located in the vertical plane of the goal line, and the second pairs of sensors are located behind the first on the border vertical plane of the goal line and the horizontal area of the gates. On the outer surface of the game ball the reflective elements are made in the form of interwoven metal threads, and between the sensors of the optoelectronic pairs and the control unit the time relay is mounted.EFFECT: increased accuracy of determining achievement of the gates.4 dwg |
