Protective Gray Busbar Positioning System
A Gray busbar and positioning system technology, applied to measuring devices, instruments, and electrical devices, can solve problems such as low reliability, heavy maintenance workload, and high cost, and achieve improved reliability, high magnetic field strength, and simplified structure Effect
Inactive Publication Date: 2015-09-30
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
[0006] The main disadvantages of the above method are: contact measurement, with mechanical action parts, low reliability, inaccurate positioning, and heavy maintenance workload
[0009] The main disadvantage of the above method is: poor anti-interference ability, can not adapt to harsh environment
However, CN1844848 and CN2915813 have the following disadvantages: ①The bus bar itself has a complex structure and high cost, and is not suitable for popular production; ②The bus bar itself is made of insulating materials and conductors. Due to the limitation of the principle, it is impossible to add a metal protective cover, which affects the reliability of the entire system. sex and longevity
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[0025] The present invention will be further described below in conjunction with the examples, and the purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.
[0026] This embodiment is a four-digit Gray code protective Gray bus positioning system. If the basic pitch is 200, the positioning length is 3.2 meters.
[0027] see figure 1 , from top to bottom are the signal lines of R3, R2, R1, and R0 that generate the Gray code position signal. It can be seen that each signal line 1 is transposed up and down according to the Gray code coding law, and the GND line 2 is arranged along the lower position. The magnetic lines of force generated by the walking electromagnet 3 (100×200 electromagnet) are perpendicular to the paper surface. When the electromagnet generates an alternating magnetic field, according to the principle of electromagnetic induction, the signal voltage...
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The invention relates to an automatic control positioning system, in particular to a protected-type Gray bus positioning system based on long-wire positioning of Gray codes. The protected-type Gray bus positioning system comprises signal wires, a Ground (GND) wire, and walking electromagnets. Positions of a change up and down and the plurality of signal wires are respectively arranged on skeletons of the signal wires, wherein the skeletons of the signal wires are manufactured by bar-shaped insulative thin plates. The GND wire is arranged on the lower edge of on independent skeleton. A plurality of skeletons loaded with the signal wires and a skeleton loaded with the GND wire are overlapped and are assembled inside a magnetism-proof protection cover to form a Gray bus structure. The walking electromagnets are arranged along the Gray bus structure in parallel, and magnetic lines of force generated by the walking electromagnets are perpendicular to the side vertical surface of the Gray bus structure. The protected-type Gray bus positioning system is moderate in positioning precision, strong in anti-interference ability, capable of adapting to bad environment, simple to arrange, high in reliability, and applicable to automatic control positioning of rail-type overhead traveling cranes, traveling cranes, cranes and the like in the industries of metallurgy, beneficiation, cement, electricity generation, transport and the like.
Description
technical field [0001] The invention relates to an automatic control and positioning system for a rail crane, a crane and a crane, in particular to a protective Gray bus positioning system for long-line positioning based on Gray codes. Background technique [0002] In industries such as metallurgy, ore dressing, cement, power generation, and transportation, a large number of track-type cranes, cranes, and cranes are used, and a reliable positioning system is required for automatic control. The requirements for the positioning of this type of equipment are: ① one-dimensional positioning, the range is within a few hundred meters; ② the accuracy requirement is not high, it can be within a few centimeters; ③ the reliability is extremely high, anti-electromagnetic interference, and adaptable to harsh environments. [0003] Currently, the most widely used location detection methods are: [0004] ① Travel switch: Installed next to the track, when the vehicle walks over, it will to...
Claims
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IPC IPC(8): G01B7/00
Inventor 郝成梁秀满杨志刚王建民刘振东崔策
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY