CN211979052U - Detection apparatus for track circuit compensation capacitance - Google Patents
Detection apparatus for track circuit compensation capacitance Download PDFInfo
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- CN211979052U CN211979052U CN202020024635.6U CN202020024635U CN211979052U CN 211979052 U CN211979052 U CN 211979052U CN 202020024635 U CN202020024635 U CN 202020024635U CN 211979052 U CN211979052 U CN 211979052U
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Abstract
The utility model discloses a detection device of a track circuit compensation capacitor, which comprises a compensation capacitor and a detection mechanism; the detection mechanism comprises a compensation capacitor induction antenna, an acquisition card and an industrial personal computer, wherein the compensation capacitor induction antenna is positioned right above a compensation capacitor lead, the acquisition card is used for performing analog-to-digital conversion on the output voltage of the compensation capacitor induction antenna, the industrial personal computer is used for receiving the output signal of the acquisition card and judging whether the compensation capacitor is in fault, the induction direction of the compensation capacitor induction antenna is perpendicular to the compensation capacitor lead and parallel to a steel rail, the output end of the compensation capacitor induction antenna is connected to the input end of the acquisition card, and the output end of the acquisition card. The utility model discloses an electromagnetic induction principle detects compensation electric capacity, can realize having saved a large amount of check-out time along with portable track detects the purpose that the car removed the detection, and compensation electric capacity response antenna induction efficiency is very high, can not receive rail current or other forms's interference at the response in-process, has guaranteed the response precision effectively.
Description
Technical Field
The utility model relates to a technical field, especially a track circuit compensation capacitance's detection device are maintained in railway electricity affairs monitoring.
Background
High-speed, safe operation of a railway train requires information transmission of a railway signal system and train information transmission in addition to good railway base lines and train conditions. The high-speed railway signal system consists of a ground signal transmission system and a vehicle-mounted signal receiving control system. The ground signal transmission system is arranged along the running line of the train, and has wide distribution range and severe application environment. In order to extend the transmission distance of signals to the greatest extent, a plurality of compensation capacitors are arranged between the steel rails. However, due to factors such as external environment and weather, the compensation capacitor may have problems such as poor contact, which affects the transmission efficiency of the ground signal transmission system, and therefore, the compensation capacitor needs to be periodically detected.
At present, the compensation capacitance detection of a track circuit mainly depends on a dynamic detection vehicle and a traditional manual portable special frequency shift meter for detection. The same line can be detected only by moving the inspection vehicle for several months, and the manual operation efficiency is low, the labor intensity is high, so that the two modes cannot effectively detect whether the compensation capacitor fails in time.
The Chinese patent with the publication number of CN103777119B discloses a method and a system for detecting a vehicle-mounted compensation capacitor, wherein an analog signal is generated and sent to an electromagnetic loop to form a primary electromagnetic field; the electromagnetic loop consists of two adjacent wheel pairs of the train and steel rails on two sides of the train, and the electromagnetic loop also comprises a compensation capacitor which is positioned between the two wheel pairs and is connected with the two wheel pairs in parallel on the steel rails on two sides of the train; inducing the secondary electromagnetic field on the electromagnetic loop through a receiving antenna to obtain an induction signal of the induction current; comparing the induction signal with a standard induction signal prestored in an industrial personal computer to obtain state information of the compensation capacitor; and the accurate position information of the compensation capacitor is calculated through the positioning module, so that the relative capacitance value of the compensation capacitor and the accurate position of the fault compensation capacitor can be conveniently and quickly judged. Although the device can realize effective detection of the compensation capacitor, because the transmitting antenna and the receiving antenna are jointly arranged on the detection train, a signal shielding device is not arranged between the transmitting antenna and the receiving antenna, and an analog signal sent by the transmitting antenna can generate certain interference on an induced current signal in an induction steel rail-wheel pair loop of the receiving antenna, so that the detection precision is influenced. In addition, the device has a complex structure and higher research and development cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a track circuit compensation capacitance's detection device to solve traditional manual work and carry special frequency shift table and carry out detection efficiency low, intensity of labour is big, and current detection device can produce signal interference, influence the problem that detects the precision when examining, detect with the realization to track circuit compensation capacitance's high efficiency, accurately, reduce intensity of labour, realize the purpose that the high efficiency was patrolled and examined.
In order to solve the technical problem, the utility model adopts the following technical proposal.
A detection device for a track circuit compensation capacitor comprises a compensation capacitor connected with two parallel steel rails which are electrified by a compensation capacitor lead and a detection mechanism which is arranged on a portable track detection vehicle capable of running on the steel rails and is used for detecting the compensation capacitor; the detection mechanism comprises a compensation capacitor induction antenna, an acquisition card and an industrial personal computer, wherein the compensation capacitor induction antenna is located right above a compensation capacitor lead wire and used for sensing current in the compensation capacitor lead wire and converting the current into voltage to be output, the acquisition card is used for performing analog-to-digital conversion on the output voltage of the compensation capacitor induction antenna, the industrial personal computer is used for receiving an output signal of the acquisition card and judging whether the compensation capacitor is in fault or not, the sensing direction of the compensation capacitor induction antenna is perpendicular to the compensation capacitor lead wire and parallel to a steel rail, the output end of the compensation capacitor induction antenna is connected to the input end of the acquisition.
According to the technical scheme, the compensation capacitor induction antenna comprises an inductor and a capacitor, wherein the induction direction of the inductor is perpendicular to the compensation capacitor lead and parallel to the steel rail, and the capacitor is connected with the inductor in parallel to form a resonant circuit.
According to the technical scheme, the compensation capacitance induction antenna is arranged 25mm-50mm above the compensation capacitance lead.
Further optimizing the technical scheme, the output end of the compensation capacitance induction antenna is connected with the input end of the acquisition card through a twisted cable.
Further optimize technical scheme, the output of collection card is connected with the input of industrial computer through the USB cable.
According to the technical scheme, the industrial personal computer comprises a detection module used for processing output signals of the acquisition card, and the output end of the acquisition card is connected to the input end of the detection module.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses install on portable track detection car, detect compensating capacitor through the electromagnetic induction principle, have light in weight, detect fast, portable characteristics etc. need not the special frequency shift table of manual carrying and detect compensating capacitor one by one, can realize along with portable track detection car move the purpose that detects, saved a large amount of check-out time; just the utility model discloses well compensation electric capacity response antenna induction efficiency is very high, sweep with take the altitude and the direction can from compensation electric capacity lead wire top, and because of compensation electric capacity response antenna's response direction and compensation electric capacity lead wire are mutually perpendicular and parallel with the rail, so can not receive the interference of rail current or other forms in the response process, the response precision has been guaranteed effectively, and then final detection precision has been guaranteed, relevant personnel can be very fast, the state of each compensation electric capacity is held accurately, realized in time maintaining effectively to the railway.
Drawings
FIG. 1 is a schematic view of a part of the structure of the present invention;
FIG. 2 is a front view of FIG. 1;
fig. 3 is a schematic structural diagram of the compensation capacitance induction antenna of the present invention;
FIG. 4 is a schematic block diagram of the present invention;
FIG. 5 is a diagram of the induction strength of the compensation capacitor of the present invention;
fig. 6 is that the utility model discloses draw compensation capacitance induction strength curve according to the mileage.
Wherein: 1. the device comprises a steel rail, 2, a compensation capacitance induction antenna, 21, an inductor, 22, a capacitor, 3, a compensation capacitor, 4, a compensation capacitor lead, 5, a collection card, 6, an industrial personal computer, 61 and a detection module.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
A detection device for a track circuit compensation capacitor is shown in combination with figures 1 to 6 and comprises a compensation capacitor lead 4, a compensation capacitor 3 and a detection mechanism.
The utility model discloses when examining, it has the electric current to lead to on the rail 1, is in the state that does not detect, does not lead to on the rail 1 has the electric current.
The compensation capacitor 3 is connected with the two parallel steel rails 1 which are electrified with current through a compensation capacitor lead 4.
The detection mechanism is arranged on a portable track detection vehicle capable of running on the steel rail 1 and used for detecting the compensation capacitor 3. The detection mechanism comprises a compensation capacitance induction antenna 2, a collection card 5 and an industrial personal computer 6.
The compensation capacitance induction antenna 2 is located right above the compensation capacitance lead wire 4 and used for inducing current in the compensation capacitance lead wire 4 and converting the current into voltage to be output.
The utility model discloses well compensation capacitor induction antenna 2's response direction and compensation capacitor lead wire 4 looks perpendicular and parallel with rail 1, can avoid the influence of rail electric current.
The compensated capacitive sensing antenna 2 comprises an inductance 21 and a capacitance 22. The induction direction of the inductor 21 is perpendicular to the compensation capacitor lead 4 and parallel to the steel rail 1. The capacitor 22 and the inductor 21 are connected in parallel to form a resonant circuit.
The compensation capacitance induction antenna 2 is arranged at a position 25mm-50mm right above the compensation capacitance lead wire 4, and can well realize electromagnetic induction.
The acquisition card 5 is used for performing analog-to-digital conversion on the output voltage of the compensation capacitance induction antenna 2, the output end of the compensation capacitance induction antenna 2 is connected to the input end of the acquisition card 5, and the output end of the acquisition card 5 is connected to the input end of the industrial personal computer 6.
The utility model discloses well compensation capacitance induction antenna 2's output is connected with the input of collection card 5 through the twist cable, the utility model discloses well twist cable adopts two core twist cables.
The utility model discloses well acquisition card 5's output is connected with industrial computer 6's input through the USB cable.
The industrial personal computer 6 is used for receiving the output signal of the acquisition card 5 and judging whether the compensation capacitor 3 has a fault.
The industrial personal computer 6 comprises a detection module 61, the detection module 61 is used for processing the output signal of the acquisition card 5, and the output end of the acquisition card 5 is connected with the input end of the detection module 61.
The utility model discloses install on portable track detects the car when in-service use, detect compensation capacitance through the electromagnetic induction principle. When detection is carried out, weak current is introduced to the steel rail 1, the portable track detection vehicle is started, and the compensation capacitance induction antenna 2 carries out movement detection along with the portable track detection vehicle. When the compensation capacitance induction antenna 2 moves to the position right above the compensation capacitance lead wire 4, the current in the compensation capacitance lead wire 4 is induced and converted into voltage to be output to the acquisition card 5. The utility model discloses 2 induction efficiency of well compensation electric capacity induction antenna are very high, from 4 tops of compensation electric capacity lead wire with take the altitude and the direction sweep can, and can not receive rail current or other forms's interference at the response in-process, guaranteed the response precision effectively.
The acquisition card 5 performs analog-to-digital conversion on the output voltage of the compensation capacitance induction antenna 2 according to the speed of 10ksps, and transmits the output voltage to the industrial personal computer 6 for processing through the USB cable. The detection module 61 in the control machine 6 processes the acquisition card data according to the period of 100 ms/time, converts the time domain sampling to the frequency domain by adopting the FFT algorithm, then calculates the amplitude spectrum, selects the frequency shift range frequency band to display, and the compensation capacitance induction intensity graph is shown in fig. 5. Finally, the industrial personal computer 6 draws a compensation capacitance induction intensity curve according to the mileage, as shown in fig. 6.
Claims (6)
1. A detection device for track circuit compensation capacitance is characterized in that: the device comprises a compensation capacitor (3) connected with two parallel steel rails (1) which are electrified through a compensation capacitor lead (4) and a detection mechanism which is arranged on a portable rail detection vehicle capable of running on the steel rails (1) and is used for detecting the compensation capacitor (3); the detection mechanism comprises a compensation capacitor induction antenna (2) which is located right above a compensation capacitor lead (4) and used for inducing current in the compensation capacitor lead (4) and converting the current into voltage to be output, an acquisition card (5) used for performing analog-to-digital conversion on output voltage of the compensation capacitor induction antenna (2) and an industrial personal computer (6) used for receiving output signals of the acquisition card (5) and judging whether the compensation capacitor (3) is in fault, the induction direction of the compensation capacitor induction antenna (2) is perpendicular to the compensation capacitor lead (4) and parallel to a steel rail (1), the output end of the compensation capacitor induction antenna (2) is connected to the input end of the acquisition card (5), and the output end of the acquisition card (5) is connected to the input end of the industrial personal computer (6).
2. The apparatus for detecting compensation capacitance of track circuit according to claim 1, wherein: the compensation capacitance induction antenna (2) comprises an inductor (21) and a capacitor (22), wherein the induction direction of the inductor is perpendicular to the compensation capacitance lead wire (4) and parallel to the steel rail (1), and the capacitor (22) and the inductor (21) are connected in parallel to form a resonant circuit.
3. A track circuit compensation capacitance detection device according to claim 1 or 2, wherein: the compensation capacitance induction antenna (2) is arranged at a position 25mm-50mm above the compensation capacitance lead wire (4).
4. The apparatus for detecting compensation capacitance of track circuit according to claim 1, wherein: the output end of the compensation capacitance induction antenna (2) is connected with the input end of the acquisition card (5) through a twisted cable.
5. The apparatus for detecting compensation capacitance of track circuit according to claim 1, wherein: the output end of the acquisition card (5) is connected with the input end of the industrial personal computer (6) through a USB cable.
6. The apparatus for detecting compensation capacitance of track circuit according to claim 1, wherein: the industrial personal computer (6) comprises a detection module (61) for processing the output signal of the acquisition card (5), and the output end of the acquisition card (5) is connected with the input end of the detection module (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020024635.6U CN211979052U (en) | 2020-01-07 | 2020-01-07 | Detection apparatus for track circuit compensation capacitance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020024635.6U CN211979052U (en) | 2020-01-07 | 2020-01-07 | Detection apparatus for track circuit compensation capacitance |
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| CN211979052U true CN211979052U (en) | 2020-11-20 |
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| CN202020024635.6U Active CN211979052U (en) | 2020-01-07 | 2020-01-07 | Detection apparatus for track circuit compensation capacitance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116449258A (en) * | 2023-04-24 | 2023-07-18 | 中铁武汉电气化局集团上海电气有限公司 | Compensation capacitance detection system applied to track circuit detection trolley |
-
2020
- 2020-01-07 CN CN202020024635.6U patent/CN211979052U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116449258A (en) * | 2023-04-24 | 2023-07-18 | 中铁武汉电气化局集团上海电气有限公司 | Compensation capacitance detection system applied to track circuit detection trolley |
| CN116449258B (en) * | 2023-04-24 | 2024-02-23 | 中铁武汉电气化局集团上海工程建设有限公司 | Compensation capacitance detection system applied to track circuit detection trolley |
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