Foreign invasion double-power-grid sensor coiling and connector structure and realization method thereof
A joint structure and foreign object intrusion limit technology, which is applied in the direction of railway signal and safety, can solve the problems of weak anti-interference and high false alarm rate, so as to save purchase cost and maintenance cost, prolong service life, and solve the problem of core wire to ground insulation effect
Active Publication Date: 2012-12-12
中铁电化(西安)通号设备有限公司
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[0007] The invention provides a foreign matter invasion limit dual grid sensor winding and joint structure and its realization method to solve the technical problems of weak anti-interference and high false alarm rate in the prior art
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[0032] The winding structure of the dual grid sensor of the high-speed rail disaster prevention system of the present invention adopts a four-wire connection method to form two non-interfering loops, and the lines are arranged in a cross shape. In addition, the present invention adopts the method of sealing and pouring glue at the joint.
[0033] The double grid of the present invention applies the principle of non-inductive coils, and two independent loops are formed by parallel winding of two wires, and the two independent loops are distributed in a cross grid on the dual grid, such as figure 1 shown. When the lead-out ends of A network and B network are cross-connected, the induced potential of A network and B network is offset to zero, achieving the effect of anti-interference. The condition for triggering the train control and interlocking system is that both independent circuits are disconnected. Such as figure 2 , 3 As shown, the two pairs of cable core wire connec...
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The invention provides a foreign invasion double-power-grid sensor coiling and connector structure and a realization method thereof, which solve the problem in the prior art that the anti-interference performance is weak, the misinformation rate is high and the like. According to the coiling and connector structure disclosed by the invention, a power grid A and a power grid B of the double power grids adopt double wires and are coiled into two independent circuits; the two independent circuits are distributed in a crossed grid manner on the power grid A and the power grid B; leading-out terminals of the power grid A and the power grid B are crossly connected and conditions of triggering a row controlling and linking system are that the two independent circuits are powered off; connectors of two groups of four cable core wires corresponding to the two independent circuits are respectively screwed and folded and are sealed in a terminal box through a nipple connector cap; and the terminal box is formed by an inner layer terminal box, a storing box and a stainless steel protective box. According to the foreign invasion double-power-grid sensor coiling and connector structure and the realization method thereof, the misinformation faults are greatly reduced and the safety operation of a train is guaranteed; and when the leading-out terminals of the power grid A and the power grid B are crossly connected, induction potentials of the power grid A and the power grid B are offset to be zero, so that the anti-interference effect is achieved.
Description
technical field [0001] The invention relates to a foreign matter invasion limiting dual grid sensor winding and joint structure and a realization method thereof, which can be applied to high-speed rail disaster prevention systems. Background technique [0002] The high-speed rail disaster prevention system generally installs a vertical monitoring network on both sides of the railway bridge or other places where foreign objects are prone to intrusion to block foreign objects. The train control and interlocking system make the train produce an emergency stop. [0003] There are following problems in prior art: [0004] 1. The foreign object invasion limit dual power grid currently used by high-speed rail adopts a loop, the inductive effect cannot be avoided, and the anti-interference ability is weak. [0005] 2. Although the dual-grid cable in the prior art has a shielding layer, the inductive effect on the outside cannot be eradicated, and the interference phenomenon is ine...
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IPC IPC(8): B61L23/00
Inventor 张健
Owner 中铁电化(西安)通号设备有限公司