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Signaling Inspection System


The system employs highly accurate acquisition and real-time analysis technology for CTCS-3 level train-controlling system signals under high-speed conditions to achieve the real-time inspection for ATP operation data, Igsmr interface data, Um wireless environmental data, as well as the inspection and comprehensive intelligent analysis for EMC of vehicle-board train-controlling equipment, transmission features of track circuit, up-link and messages of balise, working status of compensation capacitor.

 

Technical Index

Inspection 
Content

 

Measuring Range

Tolerance

 

Location

Record and analyze

≤1m

 

Message

Record and analyze

Frequency offset: accuracy

 

Measuring range of center 
frequency

4.0M~4.5M

 

better than 5 kHz.

     
 

Frequency bandwidth of uplink

1.0M~8.0M

Frequency resolution better

Balise inspection

signals

than 10kHz.

 
 

Power of uplink signals

1mW~500mW

<0.5dB

 

Average data velocity

564.48±2.5%kbps

Accuracy better than 
100ppm.

 

MTIE1 and MTIE2

0~800ns

Accuracy better than 50ns.

 

Amplitude of uplink signals

±5dB

Accuracy better than 0.2 dB.

 

Bit error rate

0~100%

<1%

 

Signal carrier frequency

0~3000Hz

±0.1Hz

 

Modulation frequency

0~30Hz

±0.02Hz

 

Signal amplitude

-

≤2mV±2%× reading

 

Transmission attenuation

≤50db

-

Inspection of
 track

Insulated section Location

-

≤15m

circuit

Response time

<1.5 seconds

-

Signal interference from 
neighboring

   
 

-

≤2mV±2%× reading

 

sections and neighboring lines

   
 

Unbalanced traction current and

0~4kHz

≤5mV±2%× reading

 

harmonic interference

     
 

Signal Sampling frequency

 

>20kHz

Inspection of

Compensation capacitor Location

-

≤5m

compensation

Working status of compensation

5~100μF

 

capacitor

capacitor

 
   
 

Inspection accurate rate

-

>98%

       

 

轨道电路、补偿电容、轨道电路不平衡电流检测

 

Balise Inspection

 

Intelligent Integrated Analysis of Inspection Data