Unlock instant, AI-driven research and patent intelligence for your innovation.

Portable track signal detection device integrated with standard shunt resistor and detection method

A detection device and track signal technology, applied in the direction of measuring devices, measuring electrical variables, measuring current/voltage, etc., can solve the problems of single function, increased workload, increased cost, etc., and achieve high detection efficiency, convenient detection, and portability Effect

Pending Publication Date: 2021-07-27
LIUZHOU CHENTIAN TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The function is very single, it is used as a bypass resistor, and it can only measure the shunt residual voltage measurement and inlet short-circuit current of the railway track circuit;
[0006] (2) To measure the rail surface voltage and track circuit frequency shift signal (including carrier frequency, base frequency, frequency offset and track circuit information code), it is necessary to use a special instrument for measurement, which not only increases the cost, but also increases the work quantity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Portable track signal detection device integrated with standard shunt resistor and detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A portable track signal detection device integrating standard shunt resistors, including rail joint I1, rail joint II2, switching relay 3, standard shunt resistance 4, current sensor 5, current signal conditioning circuit 6, current signal ADC 7, and voltage measurement Circuit 8, voltage signal conditioning circuit 9, voltage signal ADC 10, microcontroller 11, keys 12, display drive circuit 13, display screen 14, switching relay control circuit 15 and power supply circuit;

[0039] The rail joint I and the rail joint II are used to connect the rail to be tested with the detection device; the switching relay 3 is used to switch the connection state of the rail to be tested and the detection device under the control of the switching relay control circuit 15: open circuit or short circuit through the standard shunt resistor 4; the current sensor 5 is used to obtain the shunt current signal of the rail to be tested flowing through the standard shunt resistor 4 in the short ...

Embodiment 2

[0045] A detection method of a portable track signal detection device integrating standard shunt resistance, including the detection method of rail surface voltage, shunt current, shunt residual voltage measurement and inlet short-circuit current;

[0046] (1) The detection of rail surface voltage and shunt current includes the following steps:

[0047] S11: Start the detection device by pressing button 12;

[0048] S12: Pull out the rail joint Ⅰ1 and the rail joint Ⅱ2, and press them on the two adjacent positions of the two rails by hand; the microcontroller controls the switching relay to be in the rail open state (setting state), and the detection device enters the open state The automatic detection process:

[0049] S121 The voltage measurement circuit measures the rail surface voltage of the rail in the open state → S122 The voltage measurement circuit transmits the rail surface voltage to the voltage signal conditioning circuit → S123 The voltage signal conditioning cir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A portable track signal detection device integrated with a standard shunt resistor is characterized in that a switching relay is used for switching the connection state of a steel rail to be detected and the detection device under the control of a switching relay control circuit: an open circuit or a short circuit; a current sensor is used for acquiring a shunt current signal flowing through the standard shunt resistor in a short-circuit state, transmitting the shunt current signal to the current signal conditioning circuit to convert the current signal into a voltage signal, amplifying and filtering the voltage signal, finally transmitting the voltage signal to the current signal ADC for analog-to-digital conversion, and transmitting the voltage signal to the microcontroller for processing; a voltage measuring circuit is used for measuring rail surface voltage in an open circuit state, an obtained voltage signal is transmitted to a voltage signal conditioning circuit to be conditioned, amplified and filtered, then the voltage signal is transmitted to a voltage signal ADC to be subjected to analog-to-digital conversion, and then the voltage signal is transmitted to a microcontroller to be processed. The device not only has the bypass resistor function, but also can measure the track voltage, the shunt current and the track circuit frequency shift signal, the detection is convenient, and the result is accurate and reliable.

Description

technical field [0001] The invention relates to a ZPW2000A railway track signal detection device and a detection method, in particular to a portable track signal detection device and a detection method integrating standard shunt resistors. Background technique [0002] The track circuit reflects the occupied section of the train (rolling stock) by short-circuiting the rails on both sides of the line by the wheel pair and cutting off the electrical circuit. If the rail surface is seriously rusted, the vehicle wheel set is corroded or dirt is adhered, the rail surface is adhered to a special non-metallic material insulation isolation layer, etc., resulting in poor track circuit shunting, resulting in the control of the track section when the train or train occupies the track. If the track relay cannot be dropped normally, the signal interlock will fail, which may lead to receiving and dispatching trains or shunting trains to the section occupied by cars. This is very dangerous...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/00G05B19/042
CPCG01R19/00G05B19/042
Inventor 陈宝琳黄飞
Owner LIUZHOU CHENTIAN TECH