CN113184012A - Electronic receiver for 480 track circuit and 480 track circuit - Google Patents
Electronic receiver for 480 track circuit and 480 track circuit Download PDFInfo
- Publication number
- CN113184012A CN113184012A CN202110586619.5A CN202110586619A CN113184012A CN 113184012 A CN113184012 A CN 113184012A CN 202110586619 A CN202110586619 A CN 202110586619A CN 113184012 A CN113184012 A CN 113184012A
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- transformer
- electronic receiver
- track circuit
- track
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- 239000011159 matrix material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004382 potting Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
- B61L1/181—Details
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The electronic receiver comprises a matching unit and a board card unit, wherein the matching unit is used for realizing impedance matching with other circuits in the 480 track circuit, and the board card unit is used for collecting track voltage. The invention has the advantages of small circuit modification, cost saving, high reliability and high safety.
Description
Technical Field
The invention relates to an electronic receiver for a 480 track circuit and the 480 track circuit.
Background
As shown in fig. 1, the original 480-track circuit mainly includes a track transformer BG disposed in a transformer box5A relay transformer BZ arranged in the cable box4And a receiver, wherein the receiver of the traditional 480-track circuit adopts a JZXC-480 type relay and is connected with a cable box BZ of a power receiving end through a cable4And connecting to realize the state acquisition of the track circuit. The receiver has the defects of low shunt sensitivity, poor lightning protection performance and the like, can not avoid industrial and modular interference, and has more and more urgent requirements on safety, reliability and advancement of a high altitude system along with improvement of the knowledge of an owner on the interlocking system.
Disclosure of Invention
The invention aims to provide an electronic receiver for a 480-track circuit and the 480-track circuit, which are small in circuit modification, cost-saving, high in reliability and high in safety.
To achieve the above object, the present invention provides an electronic receiver for a 480-track circuit, comprising:
the circuit comprises a matching unit and a board card unit which are connected through a circuit, wherein the matching unit is used for realizing impedance matching with other circuits in a 480 track circuit, and the board card unit is used for collecting track voltage.
The matching unit includes:
a primary coil of the transformer is used as an input end and connected with a secondary coil of a relay transformer in the 480 track circuit, and the secondary coil of the transformer is used as an output end and connected with the board card unit;
a resistor matrix including at least one resistor connected in series across the transformer primary coil.
And the turn ratio of the secondary coil to the primary coil of the transformer is less than or equal to 1.
The transformer adopts air gap adding and encapsulating measures.
The resistor is a wire-wound resistor.
The series impedance of the primary winding of the transformer and the resistor matrix remains constant.
The board card unit includes: and the two board cards are connected in parallel at the output end of the matching unit.
The board cards are connected to the same detection device.
The present invention also provides a 480 track circuit, comprising:
the primary coil of the track transformer is connected in series with two ends of an external power supply as an input end, and the secondary coil of the track transformer is connected in series between two steel rails as an output end;
a relay transformer, the primary coil of which is used as the input end and is connected in series between the two steel rails, and the secondary coil of which is used as the output end and is connected with the input end of the electronic receiver;
and the electronic receiver is connected with the output end of the relay transformer.
The invention has the following advantages:
1. the matching unit adaptive electronic board card can adapt to the original 480 track circuit environment, the circuit is little modified, and the cost is saved.
2. The electronic receivers with different impedances can be realized by changing the transformation ratio of the transformer, the parallel acquisition of track signals is realized, and the reliability is high.
3. Any device of the matching unit fails, the system cannot be guided to a dangerous side, and the safety is high.
Drawings
Fig. 1 is a circuit diagram of a conventional 480-track circuit in the background art.
Fig. 2 is a circuit diagram of a 480-track circuit provided by the present invention.
Fig. 3 is a circuit diagram of the electronic receiver in fig. 2.
Detailed Description
The preferred embodiment of the present invention will be described in detail below with reference to fig. 2 to 3.
Aiming at the problems of the traditional 480 track circuit, a brand-new electronic 480 track circuit can be adopted for overcoming, but the transformation into the brand-new electronic 480 track circuit means higher transformation cost for an owner, and preferably, the local transformation can be carried out on the basis of the traditional 480 track circuit so as to adapt to the original system and match with original external track circuit equipment, thereby reducing the transformation cost.
As shown in fig. 2, the present invention provides a 480-track circuit, comprising:
rail transformer BG5The primary coil is used as an input end and connected in series with two ends of an external power supply, and the secondary coil is used as an output end and connected in series between two steel rails;
relay transformer BZ4The primary coil is used as an input end and connected in series between the two steel rails, and the secondary coil is used as an output end and connected with the input end of an electronic receiver;
electronic receiver connected to the relay transformer BZ4To the output terminal of (a).
Further, the electronic receiver includes: the circuit comprises a matching unit and a board card unit which are connected with each other through a circuit, wherein the matching unit is used for realizing impedance matching with an external track circuit (all devices except an electronic receiver), and the board card unit is used for collecting track voltage.
As shown in fig. 3, the matching unit includes:
a transformer M with its primary coil connected to the relay transformer BZ as input terminal4The secondary coil is used as an output end and is connected with the board card unit; in this embodiment, the transformer M adopts air gap and potting measures, so that the inductance of the transformer is constant, the overall impedance is kept constant, and poor shunting is reduced;
a resistor matrix including at least one resistor connected in series across the transformer M primary; in this embodiment, three resistors R1, R2 and R3 are connected in series, the number of resistors in series is small, the number of fault points can be reduced, and the resistance value of the resistor is adjusted according to the impedance of the primary coil of the transformer M. Three resistors are connected in series to form a resistor matrix, so that the influence of resistor failure is reduced.
As shown in fig. 3, the board card unit includes: and the two board cards are connected in parallel at the output end of the matching unit and connected to the same detection device.
In this embodiment, in order to realize that the board card is safely collected and is kept apart from the outside, the board card is integrated with an isolation module, a filtering module and a collection module, and the board card also has a BIT detection function, can detect whether the board card passage is abnormal, and a communication module on the board card is used for sending the data collected by the board card to a detection device. The board card CAN realize the output of the track state of 8 sections, the board card is connected with the detection equipment in a CAN bus mode, the two board cards collect the track voltage in parallel, and when one board card breaks down or is pulled out, the output state of the other board card cannot be influenced.
In this embodiment, in order to implement impedance matching and ensure that the difference between the voltage collected by using a single board card and the voltage collected by using a dual board card is small, it is necessary to ensure that the turn ratio of the secondary coil n2 to the primary coil n1 of the transformer M in the matching unit is less than or equal to 1, that is, n2: n1 is less than or equal to 1. Meanwhile, it is necessary to ensure that the series impedance of the primary coil of the transformer M and the resistor matrix remains unchanged (the signal is ac 50 HZ).
On the basis of the traditional 480 track circuit, the invention adopts an electronic receiver to replace a JZXC-480 type relay to realize the state acquisition of the track circuit.
The invention has the following advantages:
1. the matching unit adaptive electronic board card can adapt to the original 480 track circuit environment, the circuit is little modified, and the cost is saved.
2. The electronic receivers with different impedances can be realized by changing the transformation ratio of the transformer, the parallel acquisition of track signals is realized, and the reliability is high.
3. Any device of the matching unit fails, the system cannot be guided to a dangerous side, and the safety is high.
It should be noted that, in the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship shown in the drawings, and are only for convenience of describing the embodiments, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. An electronic receiver for a 480 track circuit, comprising:
the circuit comprises a matching unit and a board card unit which are connected through a circuit, wherein the matching unit is used for realizing impedance matching with other circuits in a 480 track circuit, and the board card unit is used for collecting track voltage.
2. The electronic receiver of claim 1, wherein the matching unit comprises:
a primary coil of the transformer is used as an input end and connected with a secondary coil of a relay transformer in the 480 track circuit, and the secondary coil of the transformer is used as an output end and connected with the board card unit;
a resistor matrix including at least one resistor connected in series across the transformer primary coil.
3. The electronic receiver of claim 2, wherein a ratio of the number of turns of the secondary coil to the primary coil of the transformer is 1 or less.
4. The electronic receiver of claim 2, wherein said transformer employs air-gap and potting.
5. The electronic receiver of claim 2, wherein said resistor is a wire wound resistor.
6. The electronic receiver of claim 2, wherein a series impedance of a primary coil of the transformer and the resistor matrix remains constant.
7. The electronic receiver of claim 1, wherein the board unit comprises: and the two board cards are connected in parallel at the output end of the matching unit.
8. The electronic receiver of claim 7, wherein the cards are connected to the same detection device.
9. A 480 track circuit, comprising:
the primary coil of the track transformer is connected in series with two ends of an external power supply as an input end, and the secondary coil of the track transformer is connected in series between two steel rails as an output end;
a relay transformer, the primary coil of which is used as the input end and is connected in series between the two steel rails, and the secondary coil of which is used as the output end and is connected with the input end of the electronic receiver;
an electronic receiver as claimed in any one of claims 1 to 8, connected to the output of a relay transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110586619.5A CN113184012A (en) | 2021-05-27 | 2021-05-27 | Electronic receiver for 480 track circuit and 480 track circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110586619.5A CN113184012A (en) | 2021-05-27 | 2021-05-27 | Electronic receiver for 480 track circuit and 480 track circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113184012A true CN113184012A (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110586619.5A Pending CN113184012A (en) | 2021-05-27 | 2021-05-27 | Electronic receiver for 480 track circuit and 480 track circuit |
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| Country | Link |
|---|---|
| CN (1) | CN113184012A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056380A (en) * | 2021-12-27 | 2022-02-18 | 卡斯柯信号有限公司 | Receiver for 25HZ phase-sensitive track circuit |
| CN114088433A (en) * | 2021-12-24 | 2022-02-25 | 卡斯柯信号有限公司 | Track circuit analog load equipment |
| CN114104035A (en) * | 2021-12-27 | 2022-03-01 | 卡斯柯信号有限公司 | Receiver for 50HZ phase-sensitive track circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201026890Y (en) * | 2007-04-11 | 2008-02-27 | 西安铁路局西安电务器材厂 | Train shunt modified phase-sensitive track circuit system inside station |
| CN201240392Y (en) * | 2008-07-17 | 2009-05-20 | 北京全路通信信号研究设计院 | High shunt sensitivity 25Hz phase detecting track circuit for electrified sections |
| CN201245161Y (en) * | 2008-07-31 | 2009-05-27 | 北京全路通信信号研究设计院 | High branch path sensitivity 50Hz phase sensitive track circuit |
| CN201525388U (en) * | 2009-09-21 | 2010-07-14 | 上海亨钧科技有限公司 | High-sensitivity electronic receiver of track circuit |
| CN102785680A (en) * | 2012-08-10 | 2012-11-21 | 中国神华能源股份有限公司 | Method for overcoming poor shunting of track circuit |
| CN204184378U (en) * | 2014-11-06 | 2015-03-04 | 中铁二十五局集团电务工程有限公司 | A kind of coding circuit |
| KR101957146B1 (en) * | 2018-10-05 | 2019-03-13 | 벽산파워 주식회사 | Monitoring apparatus for unbalances of track circuit |
| KR102060122B1 (en) * | 2019-03-27 | 2019-12-27 | 주식회사 에스알 | Track circuit device with self-monitoring function |
| CN213168100U (en) * | 2020-09-25 | 2021-05-11 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Track circuit and signal transmission circuit thereof |
-
2021
- 2021-05-27 CN CN202110586619.5A patent/CN113184012A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201026890Y (en) * | 2007-04-11 | 2008-02-27 | 西安铁路局西安电务器材厂 | Train shunt modified phase-sensitive track circuit system inside station |
| CN201240392Y (en) * | 2008-07-17 | 2009-05-20 | 北京全路通信信号研究设计院 | High shunt sensitivity 25Hz phase detecting track circuit for electrified sections |
| CN201245161Y (en) * | 2008-07-31 | 2009-05-27 | 北京全路通信信号研究设计院 | High branch path sensitivity 50Hz phase sensitive track circuit |
| CN201525388U (en) * | 2009-09-21 | 2010-07-14 | 上海亨钧科技有限公司 | High-sensitivity electronic receiver of track circuit |
| CN102785680A (en) * | 2012-08-10 | 2012-11-21 | 中国神华能源股份有限公司 | Method for overcoming poor shunting of track circuit |
| CN204184378U (en) * | 2014-11-06 | 2015-03-04 | 中铁二十五局集团电务工程有限公司 | A kind of coding circuit |
| KR101957146B1 (en) * | 2018-10-05 | 2019-03-13 | 벽산파워 주식회사 | Monitoring apparatus for unbalances of track circuit |
| KR102060122B1 (en) * | 2019-03-27 | 2019-12-27 | 주식회사 에스알 | Track circuit device with self-monitoring function |
| CN213168100U (en) * | 2020-09-25 | 2021-05-11 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Track circuit and signal transmission circuit thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088433A (en) * | 2021-12-24 | 2022-02-25 | 卡斯柯信号有限公司 | Track circuit analog load equipment |
| CN114088433B (en) * | 2021-12-24 | 2024-04-30 | 卡斯柯信号有限公司 | Rail circuit simulation load equipment |
| CN114056380A (en) * | 2021-12-27 | 2022-02-18 | 卡斯柯信号有限公司 | Receiver for 25HZ phase-sensitive track circuit |
| CN114104035A (en) * | 2021-12-27 | 2022-03-01 | 卡斯柯信号有限公司 | Receiver for 50HZ phase-sensitive track circuit |
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