CN204536442U - Cab signaling equipment anti-traction current harmonic wave disturbed test device - Google Patents
Cab signaling equipment anti-traction current harmonic wave disturbed test device Download PDFInfo
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Abstract
Cab signaling equipment anti-traction current harmonic wave disturbed test device, belongs to railway signals equipment field tests, solves the problem of the anti-traction current interference test of cab signaling equipment.The PXI multi-function data acquisition card modulating output of this device is connected with transmitting terminal coupling device, receiving end coupling device mid point through power amplifier; Rail I, II current sensor is arranged on one end of simulation rail I, II; The two ends of transmitting terminal coupling device are attempted by the other end of simulation rail I, II; Rail I, II current sensor exports and is connected with the analog input port of PXI multi-function data acquisition card; Receiving end coupling device two ends are attempted by rail I, II; Interface board relay tip is connected with the digital input port of PXI multi-function data acquisition card.This device can export the humorous wave interference of multiple superposition simultaneously, can accurately catch the transient process of equipment under test critical jamming, tests without the need to manual intervention at every turn, and measuring accuracy improves and shortens Measuring Time.
Description
Technical field
The utility model belongs to the railway signals equipment field tests based on virtual instrument, for carrying out anti-traction current harmonic wave disturbed test accurately and efficiently to cab signaling equipment.
Background technology
Railway signals equipment is the equipment be easily disturbed in the railway system, and especially at electric propulsion section, traction current very easily forms strong jamming to ground and vehicle-mounted signal device.Heavy duty, high-speed railway are used on a large scale in China, but the event that traction interference current affects railway signals equipment work occurs repeatedly.At present, cab signaling equipment is being carried out in the disturbed test of anti-traction current harmonic wave, utilize signal generator, signal analyzer etc. independently surveying instrument combination build, test process has following deficiency.1) signal generator once can only export a kind of harmonic wave, and multiple harmonic wave depositing in a certain band in on-the-spot reality.2) in test process, realize fixing harmonic wave ratio, the uneven traction current of applying needs manually repeatedly to adjust.3) duty of equipment under test needs manual observation, easily causes erroneous judgement, and in critical conditions test process, transient process can not catch.4) rely on artificial successive test and record result, having that tester is many, the test duration is long, repeatability and data processing poor synchronization, test result precision be low.In test, can not express-analysis and diagnosis to produced problem.
Utility model content
Technical problem to be solved in the utility model is: solve Problems existing in existing cab signaling equipment anti-traction current harmonic wave disturbed test technology.
The technical solution of the utility model is:
The anti-traction current interference proving installation of track circuit based on virtual instrument, comprises PC, PXI multi-function data acquisition card, PXI cabinet, power amplifier, simulation rail I, simulation rail II, rail I current sensor, rail II current sensor, rail I, rail II, transmitting terminal coupling device, receiving end coupling device, connection cable, general-purpose locomotive code sender, interface board; Equipment under test is cab signaling equipment, comprises locomotive coil I, locomotive coil II, cab signal main frame.
Simulation rail I, simulation rail II, rail I, rail II, connection cable, transmitting terminal coupling device, receiving end coupling device are used for simulated field test environment, and wherein connection cable is used for simulating train shunt; PC, PXI multi-function data acquisition card, PXI cabinet are used for realizing the output of the humorous wave interference of traction current, the collection of rail current information, the collection of signal light for locomotive state; Rail I current sensor, rail II current sensor are used for measuring rail current information; Interface board is made up of relay array circuit, the light on and off state realizing signal light for locomotive is changed to relay energized and full state, realized the collection of PC LabVIEW software platform docking oralia relay status by PXI multi-function data acquisition card digit input function, and then realize the collection to cab signaling equipment duty under the humorous wave interference of traction current.
Wherein, for traction current harmonic wave interfere generation, utilize sinusoidal signal subfunction in the signal Core Generator bag of LabVIEW on PC LabVIEW software platform, generate dissimilar, that amplitude is adjustable harmonic wave.Exported by PXI multi-function data acquisition card modulating output port AO0, again by entering transmitting terminal coupling device mid point, receiving end coupling device mid point after power amplifier power amplification respectively, be coupled in cab signal main frame by locomotive coil I, locomotive coil II; Rail I current sensor, rail II current sensor are used for measuring rail current information, and AI0, AI1 port of rail current information conveyance to PXI multi-function data acquisition card, through PXI multi-function data acquisition card analog to digital conversion (ADC), digital signal is transported to PC LabVIEW software platform again, by making automatic adjustment with setting value comparative result, humorous wave interference is met the demands.
Connection between the device of described this device of formation is:
PXI multi-function data acquisition card is arranged in PXI cabinet groove, its modulating output AO0, GND port is connected with input IN0, IN1 port of power amplifier respectively, and output OUT0, OUT1 port of power amplifier is connected with the mid point of receiving end coupling device, transmitting terminal coupling device respectively.
Rail I current sensor is arranged on one end of simulation rail I, and one end of simulation rail I is connected with one end of rail I; Rail II current sensor is arranged on one end of simulation rail II, and simulation rail II one end is connected with one end of rail II.
Analog input AI0, GND port of PXI multi-function data acquisition card is connected with output S-OUT0, S-OUT1 port of rail I current sensor respectively; Analog input AI1, GND port of PXI multi-function data acquisition card is connected with output S-OUT2, S-OUT3 port of rail II current sensor respectively.
Numeral input DI0 ~ DI7 port of PXI multi-function data acquisition card is connected with output L-II, LU-II, U-II, U2-II, HU-II, U-II, H-II, B-II port of interface board respectively.
L, LU, U, U2, HU, U, H, B, 50VGND port of X27 or the X28 socket of cab signal main frame is connected with input L-I, LU-I, U-I, U2-I, HU-I, U-I, H-I, B-I, 50VGND-I port of interface board respectively.
The fixed juncture of the first to the 8th relay tip of interface board is connected with GND through the 9th to the 16 resistance respectively, and output L-II, LU-II, U-II, U2-II, HU-II, U-II, H-II, B-II port of interface board is connected with the fixed juncture of the first to the 8th relay tip of interface board respectively; The movable contact of the first to the 8th relay tip of interface board is connected with VCC respectively.
The two ends of transmitting terminal coupling device are attempted by simulation rail I, the simulation rail II other end; The two ends of receiving end coupling device are attempted by rail I, rail II.
PC is connected with the MXI-Express director port of PXI cabinet by MXI-Express cable.
PC installs Window operating system and LabVIEW software platform and driver.
During test, the cab signal output terminal of general-purpose locomotive code sender is connected with simulation rail I, the other end of simulating rail II respectively; Connection cable is connected with the other end of rail I, rail II respectively; Locomotive coil I, locomotive coil II are vertically fixed on rail I, rail II respectively.
Simulation rail I by simulating rail I resistance, simulation rail I inductance is serially connected in, simulation rail II by simulating rail II resistance, simulation rail II inductance is serially connected in; Resistance, the inductance value of simulation rail I and rail I are equal respectively, and resistance, the inductance value of simulation rail II and rail II are distinguished equal.
Receiving end coupling device, transmitting terminal coupling device are choke transformer or air core coil, when equipment under test is station equipment, adopt choke transformer, when equipment under test is system, adopt air core coil.
The beneficial effects of the utility model are: cab signaling equipment anti-traction current harmonic wave disturbed test device, and test operation interface adopts Virtual Instrument, easy and simple to handle; Multiple harmonic superposition simultaneously exporting, reaches and the approaching of on-site actual situations; The humorous wave interference closed loop of out-of-balance current adjusts automatically, eliminates the link of artificial adjustment, improves testing efficiency; Equipment under test critical conditions transient process accurately catches, and finds the interference threshold limiting of science; PXI cabinet, PXI multi-function data acquisition card, antijamming capability is strong, precision is high, speed is fast; Each rahmonic disturbed test, without the need to manual intervention, avoids personal error, shortens Measuring Time and improves measuring accuracy.
Accompanying drawing explanation
Fig. 1 is cab signaling equipment anti-traction current harmonic wave disturbed test apparatus structure schematic diagram.
Fig. 2 is PXI chassis interface terminal electrical circuit connection layout.
Fig. 3 is interface board circuit schematic diagram.
Fig. 4 is cab signaling equipment anti-traction current harmonic wave disturbed test device to test process flow diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Cab signaling equipment anti-traction current harmonic wave disturbed test device, as shown in Figure 1, Figure 2, Fig. 3.This device comprises PC 1, PXI multi-function data acquisition card 2, PXI cabinet 3, power amplifier 4, simulation rail I 5-1, simulation rail II 5-2, rail I current sensor 6-1, rail II current sensor 6-2, rail I 7-1, rail II7-2, receiving end coupling device 9, transmitting terminal coupling device 10, connection cable 11, general-purpose locomotive code sender 12, interface board 14; Locomotive coil I 8-1, locomotive coil II 8-2, cab signal main frame 13 form equipment under test, and the connection between the device of described this device of formation is:
PXI multi-function data acquisition card 2 is arranged in PXI cabinet 3 groove, its modulating output AO0, GND port is connected with input IN0, IN1 port of power amplifier 4 respectively, and output OUT0, OUT1 port of power amplifier 4 is connected with the mid point of receiving end coupling device 9, transmitting terminal coupling device 10 respectively; Receiving end coupling device 9, transmitting terminal coupling device 10 are choke transformer or air core coil, when equipment under test is station equipment, adopt choke transformer, when equipment under test is system, adopt air core coil.
Rail I current sensor 6-1 is arranged on one end of simulation rail I 5-1, and one end of simulation rail I 5-1 is connected with one end of rail I 7-1; Rail II current sensor 6-2 is arranged on one end of simulation rail II 5-2, and simulation rail II 5-2 one end is connected with one end of rail II 7-2.
Analog input AI0, GND port of PXI multi-function data acquisition card 2 is connected with output S-OUT0, S-OUT1 port of rail I current sensor 6-1 respectively; Analog input AI1, GND port of PXI multi-function data acquisition card 2 is connected with output S-OUT2, S-OUT3 port of rail II current sensor 6-2 respectively.
Numeral input DI0 ~ DI7 port of PXI multi-function data acquisition card 2 is connected with output L-II, LU-II, U-II, U2-II, HU-II, U-II, H-II, B-II port of interface board 14 respectively.
L, LU, U, U2, HU, U, H, B, 50VGND port of X27 or the X28 socket of cab signal main frame 13 is connected with input L-I, LU-I, U-I, U2-I, HU-I, U-I, H-I, B-I, 50VGND-I port of interface board 14 respectively.
The fixed juncture of first to the 8th relay tip K1 ~ K8 of interface board 14 connects through the 9th to the 16 resistance R9 ~ R16 and GND respectively, and output L-II, LU-II, U-II, U2-II, HU-II, U-II, H-II, B-II port of interface board 14 is connected with the fixed juncture of first to the 8th relay tip K1 ~ K8 of interface board 14 respectively; The movable contact of first to the 8th relay tip K1 ~ K8 of interface board 14 is connected with VCC respectively; Wherein VCC is 5V power supply.
The two ends of transmitting terminal coupling device 10 are attempted by simulation rail I 5-1, the simulation rail II 5-2 other end; The two ends of receiving end coupling device 9 are attempted by rail I 7-1, rail II 7-2.
PC 1 is connected with the MXI-Express director port of PXI cabinet 3 by MXI-Express cable;
PC 1 installs Window operating system and LabVIEW software platform and driver.
During test, the cab signal output terminal of general-purpose locomotive code sender 12 is connected with simulation rail I 5-1, the other end of simulating rail II 5-2 respectively; Connection cable 11 is connected with the other end of rail I 7-2, rail II 7-2 respectively, simulation train shunt; Locomotive coil I 8-1, locomotive coil II 8-2 are vertically fixed on rail I 7-1, rail II 7-2 by 155 ± 5mm distance respectively.
Simulation rail I 6-1 by simulating rail I resistance RI, simulation rail I inductance L I is serially connected in, simulation rail II 6-2 by simulating rail II resistance RII, simulation rail II inductance L II is serially connected in; Resistance, the inductance value of simulation rail I 6-1 and rail I 7-1 are equal respectively, and resistance, the inductance value of simulation rail II 6-2 and rail II 7-2 are distinguished equal.
PXI multi-function data acquisition card 2 adopts NI PXI 6229, there are 16 difference or 32 single ended input passages, ADC resolution is 16bits, sampling rate can reach 250kS/s, 4 separate analogue output channels, DAC resolution is 16bits, sampling rate 833kS/s, the digital input and output passage of 48 road Transistor-Transistor Logic level compatibilities.
PXI multi-function data acquisition card 2 analog input function is mainly to input analog signal sampling and analog to digital conversion (ADC), and modulating output function mainly carries out digital-to-analog conversion (DAC) to output digit signals.Digit input function, mainly gathers equipment under test state relay junction voltage (judging 0 or 1 state), and then as judging the foundation of equipment under test duty.
PXI cabinet 3 adopts NI PXI-1033,3U, 5 grooves, and integrated MXI-Express controller, is connected with PC by MXI-Express controller, thus realizes PC and control PXI cabinet 3 and PXI multi-function data acquisition card 2.
Fig. 4 is cab signaling equipment anti-traction current harmonic wave disturbed test method flow diagram.
Comprise the following steps:
Step one: traction current harmonic parameters is set.
In this step, according to TB3073 traction current each harmonic ratio, arrange traction current harmonic parameters, as harmonic frequency, amplitude, and harmonic wave single exports, harmonic wave multiple stacking exports.Such as, when being 1700-1 frequently, when carrying out anti-traction current harmonic wave disturbed test according to TB3073, arranging harmonic frequency is 1650Hz, 1700Hz, 1750Hz, and harmonic amplitude is 308mA, 90mA, 249mA, and three rahmonics can arrange and successively export or export simultaneously.
Step 2: traction current harmonic wave.
In this step, traction current harmonic wave passes through PC LabVIEW software platform output digit signals, through PXI multi-function data acquisition card digital-to-analog conversion (DAC), from modulating output terminal outputting analog signal, after-applied at coupling device mid point through power amplification, and then be coupled in equipment under test.
Step 3: current sensor Real-time Collection is transferred to the traction current harmonic information in rail.
In this step, rail I current sensor, rail II current sensor are in one end Real-time Collection rail current information of simulation rail I, simulation rail II.
Step 4: image data process is stored.
In this step, the simulating signal of current sensor collection is transported to PXI multi-function data acquisition card analog input port, through PXI multi-function data acquisition card analog to digital conversion (ADC), digital signal is transported to PC LabVIEW software platform again, and PC LabVIEW software platform stores these data.
Step 5: judge whether to meet the requirements to harmonic wave interference value in the rail gathered.
By comparing with the first setting value of step one in this step, such as, carrier frequency is 1700-1, the traction current harmonic information that current sensor detects is 1650Hz, 1700Hz, 1750Hz with the frequency arranged according to TB3073, amplitude is that each harmonic of 308mA, 90mA, 249mA compares, and when meeting the requirements, directly exports, get back to time undesirable and link is set readjusts, make traction current harmonic wave meet TB3073 requirement.
Step 6: interface board relay tip voltage acquisition.
After harmonic wave meets the requirements, start cab signaling equipment to work under humorous wave interference, the high level of its L, LU, U, U2, HU, U, H, B signal lamp light on and off duty corresponding interface plate L-II, LU-II, U-II, U2-II, HU-II, U-II, H-II, B-II output port and low level.By judging that the state of interface board output port passes judgment on the working condition of cab signaling equipment under the humorous wave interference of traction current, thus realize the disturbed test of cab signaling equipment anti-traction current harmonic wave.
Step 7: judge that whether cab signaling equipment work is normal according to interface board relay status.
Output test result according to the duty of interface board L-II, LU-II, U-II, U2-II, HU-II, U-II, H-II, B-II output port condition adjudgement cab signaling equipment under the humorous wave interference of traction current.
When interface board output port is 5V high level, namely interface board relay is for picking up state, then judge that the decoding of cab signaling equipment signal lamp is correct, be normal work, output test result and report generation; When interface board output port voltage is low level, namely interface board relay is full state, then judge cab signaling equipment signal lamp decoding error, operation irregularity, now, recovering and analysis can be carried out to the rail current information data that step 4 stores, by rail current time domain waveform and frequency-domain analysis, determine that cab signaling equipment is to traction current harmonic wave immunity to interference, then output test result and report generation.
The simulating signal that PXI multi-function data acquisition card gathers, can the waveform of simultaneously Dynamic Announce time-frequency domain over the display; PXI multi-function data acquisition card digit input function can to relay status Real-time Collection, and especially in test process, the relay wave process that human eye is not easily discovered catches, and this is to measure and to analyze the critical immunity to interference of equipment under test very convenient.
Claims (3)
1. cab signaling equipment anti-traction current harmonic wave disturbed test device, it is characterized in that: this device comprises PC (1), PXI multi-function data acquisition card (2), PXI cabinet (3), power amplifier (4), simulation rail I (5-1), simulation rail II (5-2), rail I current sensor (6-1), rail II current sensor (6-2), rail I (7-1), rail II (7-2), receiving end coupling device (9), transmitting terminal coupling device (10), connection cable (11), general-purpose locomotive code sender (12), interface board (14), locomotive coil I (8-1), locomotive coil II (8-2), cab signal main frame (13) form equipment under test, and the connection between the device of described this device of formation is:
PXI multi-function data acquisition card (2) is arranged in PXI cabinet (3) groove, its modulating output AO0, GND port is connected with input IN0, IN1 port of power amplifier (4) respectively, and output OUT0, OUT1 port of power amplifier (4) is connected with the mid point of receiving end coupling device (9), transmitting terminal coupling device (10) respectively;
Rail I current sensor (6-1) is arranged on one end of simulation rail I (5-1), and one end of simulation rail I (5-1) is connected with one end of rail I (7-1); Rail II current sensor (6-2) is arranged on one end of simulation rail II (5-2), and simulation rail II (5-2) one end is connected with one end of rail II (7-2);
Analog input AI0, GND port of PXI multi-function data acquisition card (2) is connected with output S-OUT0, S-OUT1 port of rail I current sensor (6-1) respectively; Analog input AI1, GND port of PXI multi-function data acquisition card (2) is connected with output S-OUT2, S-OUT3 port of rail II current sensor (6-2) respectively;
Numeral input DI0 ~ DI7 port of PXI multi-function data acquisition card (2) is connected with output L-II, LU-II, U-II, U2-II, HU-II, U-II, H-II, B-II port of interface board (14) respectively;
L, LU, U, U2, HU, U, H, B, 50VGND port of X27 or the X28 socket of cab signal main frame (13) is connected with input L-I, LU-I, U-I, U2-I, HU-I, U-I, H-I, B-I, 50VGND-I port of interface board (14) respectively;
Connecting after the first to the 8th resistance (R1 ~ R8) respectively in one end of first to the 8th relay coil (J1 ~ J8) of interface board (14), then inputs L-I, LU-I, U-I, U2-I, HU-I, U-I, H-I, B-I port with interface board and be connected; The other end of the first to the 8th relay coil (J1 ~ J8) of interface board (14) is connected with 50VGND-I port respectively;
The fixed juncture of the first to the 8th relay tip (K1 ~ K8) of interface board (14) is connected with GND through the 9th to the 16 resistance (R9 ~ R16) respectively, and output L-II, LU-II, U-II, U2-II, HU-II, U-II, H-II, B-II port of interface board (14) is connected with the fixed juncture of the first to the 8th relay tip (K1 ~ K8) of interface board (14) respectively; The movable contact of the first to the 8th relay tip (K1 ~ K8) of interface board (14) is connected with VCC respectively;
The two ends of transmitting terminal coupling device (10) are attempted by simulation rail I (5-1), simulation rail II (5-2) other end; The two ends of receiving end coupling device (9) are attempted by rail I (7-1), rail II (7-2);
PC (1) is connected by the MXI-Express director port of MXI-Express cable with PXI cabinet (3);
PC (1) installs Window operating system and LabVIEW software platform and driver;
During test, the cab signal output terminal of general-purpose locomotive code sender (12) is connected with simulation rail I (5-1), the other end of simulating rail II (5-2) respectively; Connection cable (11) is connected with the other end of rail I (7-2), rail II (7-2) respectively; Locomotive coil I (8-1), locomotive coil II (8-2) are vertically fixed on rail I (7-1), rail II (7-2) by 155 ± 5mm distance respectively.
2. cab signaling equipment anti-traction current harmonic wave disturbed test device according to claim 1, is characterized in that:
Simulation rail I (6-1) is serially connected in by simulation rail I resistance (RI), simulation rail I inductance (LI), simulation rail II (6-2) is serially connected in by simulation rail II resistance (RII), simulation rail II inductance (LII), simulation rail I (6-1) and the resistance of rail I (7-1), inductance value are equal respectively, and resistance, the inductance value of simulation rail II (6-2) and rail II (7-2) are distinguished equal.
3. cab signaling equipment anti-traction current harmonic wave disturbed test device according to claim 1, is characterized in that:
Receiving end coupling device (9), transmitting terminal coupling device (10) are choke transformer or air core coil, when equipment under test is station equipment, adopt choke transformer, when equipment under test is system, adopt air core coil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520081074.2U CN204536442U (en) | 2015-02-04 | 2015-02-04 | Cab signaling equipment anti-traction current harmonic wave disturbed test device |
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| CN201520081074.2U CN204536442U (en) | 2015-02-04 | 2015-02-04 | Cab signaling equipment anti-traction current harmonic wave disturbed test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228968A (en) * | 2017-06-07 | 2017-10-03 | 中车长春轨道客车股份有限公司 | A kind of three rails of testing are powered the device of subway train Conduction Interference electric current |
| CN111865438A (en) * | 2020-07-14 | 2020-10-30 | 哈尔滨市科佳通用机电股份有限公司 | Locomotive signal code sending method |
| RU203296U1 (en) * | 2019-12-23 | 2021-03-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный университет путей сообщения" (СамГУПС) | INSTALLATION FOR ASSESSMENT AND DEMONSTRATION OF IMMUNITY OF AUTOMATIC LOCOMOTIVE SIGNALING CHANNELS |
-
2015
- 2015-02-04 CN CN201520081074.2U patent/CN204536442U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228968A (en) * | 2017-06-07 | 2017-10-03 | 中车长春轨道客车股份有限公司 | A kind of three rails of testing are powered the device of subway train Conduction Interference electric current |
| RU203296U1 (en) * | 2019-12-23 | 2021-03-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный университет путей сообщения" (СамГУПС) | INSTALLATION FOR ASSESSMENT AND DEMONSTRATION OF IMMUNITY OF AUTOMATIC LOCOMOTIVE SIGNALING CHANNELS |
| CN111865438A (en) * | 2020-07-14 | 2020-10-30 | 哈尔滨市科佳通用机电股份有限公司 | Locomotive signal code sending method |
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