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Railway signal external power grid monitoring device based on DSP chip

A railway signal and monitoring device technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve problems such as lack of functions, and achieve the effect of large range

Pending Publication Date: 2021-03-16
HENAN SPLENDOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing railway signal system does not have the above functions

Method used

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  • Railway signal external power grid monitoring device based on DSP chip
  • Railway signal external power grid monitoring device based on DSP chip

Examples

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Effect test

Embodiment 1

[0021] This embodiment provides a DSP chip-based monitoring device for the external power grid of railway signals, such as figure 1 , figure 2 As shown, it includes DSP chip unit, voltage acquisition circuit module, current acquisition circuit module, power supply module, CAN bus and monitoring station machine;

[0022] The power supply module is used to supply power to the DSP chip unit; the DSP chip unit communicates with the monitoring station machine through the CAN bus;

[0023] The voltage acquisition circuit module is used to collect the phase voltage signals input by the two-way three-phase external power grid I and II roads and transmit them to the DSP chip unit; The current signal is transmitted to the DSP chip unit;

[0024] The DSP chip unit is used to process the collected phase voltage signal and current signal and calculate the effective value of the phase voltage, the effective value of the fundamental wave of the phase voltage, the effective value of the ha...

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Abstract

The invention provides a railway signal external power grid monitoring device based on a DSP chip. The railway signal external power grid monitoring device comprises a DSP chip unit, a voltage acquisition circuit module, a current acquisition circuit module, a power supply module, a CAN bus and a monitoring station machine; the DSP chip unit processes the collected phase voltage signals and current signals and calculates a phase voltage effective value, a phase voltage fundamental wave effective value, a phase voltage harmonic wave effective value, a phase current effective value, a phase current fundamental wave effective value, a phase current harmonic wave effective value, phase power, a phase power factor, phase frequency, total power, an AB line voltage, a BC line voltage, a CA line voltage, an AB voltage phase difference, a BC voltage phase difference and a CA voltage phase difference; a calculation result is compared with an alarm threshold value, and open-phase, wrong-sequence,power-off and instantaneous power-off alarm information is generated according to an abnormal external power grid state; and finally, the real-time parameters and alarm information of the external power grid are uploaded to the monitoring station machine. The device can give an alarm in time when the railway signal external power grid is abnormal, thereby ensuring the safety of a railway system.

Description

technical field [0001] The invention relates to the field of railway power grids, in particular to a DSP chip-based external power grid monitoring device for railway signals. Background technique [0002] A safe external grid power supply is the basic guarantee for the normal operation of the railway signal system and monitoring equipment. Therefore, real-time monitoring of the quality of the input power supply of the external grid, and timely alarm when abnormalities are found, are especially important for ensuring the safe operation of the railway system, preventing accidents, and analyzing the causes of accidents. necessary. And do not possess above-mentioned function in the existing railway signaling system. [0003] In order to solve the above existing problems, people have been seeking an ideal technical solution. Contents of the invention [0004] In order to achieve the above object, the technical solution adopted in the present invention is: a kind of monitoring...

Claims

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Application Information

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IPC IPC(8): G05B19/042G01R31/00
CPCG05B19/0423G01R31/00G05B2219/24215
Inventor 丁磊刘伟江海
Owner HENAN SPLENDOR SCI & TECH
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