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Phase simulation equipment

A technology for simulating equipment and phases, applied in measuring devices, instruments, measuring electrical variables, etc., and can solve problems such as hazards and health hazards of experimenters

Active Publication Date: 2021-06-04
BEIJING RAILWAY SIGNAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When using a network analyzer to actually measure CAU, the physical antenna transmits power as high as 20-50W, which has already constituted a certain degree of harm to the human body, so it will cause harm to the health of the experimenters

Method used

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Examples

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Embodiment

[0057] figure 1 It is a circuit diagram of a phase simulation device in the embodiment of the present application.

[0058] Such as figure 1 As shown, the phase simulation device provided by this embodiment is used for simulating a real CAU when the CAU needs to be measured and modulated by a network analyzer, and the phase simulation device includes a two-port network 10 and a load network 20 .

[0059] The two-port network includes a network input terminal 11 and a network output terminal 12. The network input terminal is connected to the coaxial connector 100 connected to the signal output terminal of the network analyzer, and the network output terminal is connected to the load network.

[0060] The input impedance of the two-port network is equal to the output impedance and is the same as the output impedance of the signal output terminal of the network analyzer, and the output impedance of the two-port network is the same as the impedance of the load network.

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Abstract

The invention discloses phase simulation equipment. The phase simulation equipment comprises a two-port network and a load network. The two-port network comprises a network input end and a network output end, the network input end is used for being connected with a signal output end of the network analyzer, and the input impedance of the two-port network is equal to the output impedance of the two-port network and is the same as the output impedance of the signal output end; the load network is connected with the network output end, and the impedance of the load network is the same as that of the signal output end. Through configuration of the two-port network, the two-port network can meet the requirements of different impedances and attenuations, so that the phase simulation device can be used for simulating a physical CAU when the CAU is measured and adjusted, and the phase simulation device does not emit high-power radiation, so that the measurement and adjustment requirements are met, and no harm is caused to the health of experimenters.

Description

technical field [0001] The present application relates to the technical field of trains, and more specifically, to a phase simulation device. Background technique [0002] The ATP (Automatic Train Protection) system is an important system on the train, used to ensure the safety of the train, it is used to read the line information of the ground transponder, such as altitude, slope, kilometer mark, front limit Speed ​​information, etc., in order to generate a train speed curve based on these line information, so that the train can run safely according to the curve. [0003] When a train carrying the ATP system passes by, the CAU (Compact Antenna Uint, vehicle-mounted compact antenna unit) at the bottom of the car sends out a downlink microwave of a specific frequency f1 MHz to activate the swept transponder, and the activated transponder The line information of f2 MHz is transmitted reversely through the uplink, and the line information is then transmitted to the BTM (Balise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/10
CPCG01R29/10G01R27/06
Inventor 王天友贾泳杰张磊赵伟张浩
Owner BEIJING RAILWAY SIGNAL
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