CN104408987B - Cable emulation network disk for the Practical training equipment that automatically closes up - Google Patents
Cable emulation network disk for the Practical training equipment that automatically closes up Download PDFInfo
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- CN104408987B CN104408987B CN201410714858.4A CN201410714858A CN104408987B CN 104408987 B CN104408987 B CN 104408987B CN 201410714858 A CN201410714858 A CN 201410714858A CN 104408987 B CN104408987 B CN 104408987B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
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- Mathematical Physics (AREA)
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- Power Engineering (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
A kind of cable emulation network disk for the Practical training equipment that automatically closes up, it is related to a kind of Practical training equipment, including signal connecting terminal, power resistor network, adjustment potentiometer, described power resistor network welds on a printed circuit, and printed circuit board (PCB) is fixed on Practical training equipment enclosure of automatically closing up；Described adjustment potentiometer is fixed on and automatically closes up on Practical training equipment shell, is wired on printed circuit board (PCB), is connected with power resistor network；Described signal connecting terminal is fixed on and automatically closes up on Practical training equipment shell, is wired on printed circuit board (PCB), is connected with power resistor network.The present invention possesses the function of dummycable resistance regulation, on the premise of meeting indoor signal equipment job requirement, significantly reduces the cost of Practical training equipment, improves the efficiency adjusting dummycable resistance in teaching；And it is compact, light, beneficial to installing, safeguard.
Description
Technical field
The present invention relates to a kind of Practical training equipment, particularly a kind of cable emulation network for the Practical training equipment that automatically closes up
Disk.
Background technology
Because the Practical training equipment that automatically closes up for colleges and universities' railway communication signal experience system is placed in real training interior, permissible
Do not consider the requirement of system thunder defending.But this Practical training equipment also has its special demand：（1）Because real training interior can not possibly be laid
The cable of distance, and when carrying out the debugging efforts of signalling arrangement communication between two railway websites, must embody between them
Go out the electrical characteristic that the long-distance cable setting up between website possesses, the i.e. resistance of long-distance cable, make actual cable and compensation
Total distance of cable is 10km.Therefore Practical training equipment must possess cable emulation network disk, provide and can adjust for signalling arrangement
Dummycable resistance.（2）The Standard resistance range that concrete cable emulation network disk can be adjusted corresponds to cable 1km to 15km length
Degree, that is, 23.5 ohm to 352.5 ohm.（3）Meanwhile, the focal points of Practical training equipment of automatically closing up do not include cable emulation
Network disk, thus be accordingly used in Practical training equipment cable emulation network disk must possess again with low cost, conveniently adjust, be conveniently replaceable
Feature.（4）In addition, Practical training equipment finite volume, cable emulation network disk also should possess the features such as compact, lighter in weight.
And the invention that notification number is CN201405881Y is related to a kind of lightning-protection cable simulation network disk.Railway Site uses upper
The purpose stating lightning-protection cable simulation network disk has：1. lightning protection；2., as the extension of outside cable, provide correct for indoor equipment
Load impedance.But it is used for automatically closing up, real training has obvious shortcoming：（1）For the Practical training equipment that automatically closes up, it is no
Need lightning protection function, but the said goods are due to possessing lightning protection function, this product cost is high it is impossible to spread to colleges and universities' railway signal real
In the middle of instruction room, most schools only buy several covering for demonstrating.（2）In the middle of real training of automatically closing up, the user of this equipment
Method is not belonging to emphasis teachings, but because its method of adjustment is complex, often takes a lot of times in the middle of real training,
Have a strong impact on real training efficiency.（3）The said goods volume is larger, very heavy it is most important that it cannot embed city up till now
In the middle of the Practical training equipment stand that automatically closes up on field, hinder the popularization of the Practical training equipment that automatically closes up.
Content of the invention
The technical problem to be solved in the present invention is：There is provided one kind without lightning protection function and with low cost, lighter in weight, volume
Less, method of adjustment is simply to the cable emulation network disk of Practical training equipment of automatically closing up, to meet colleges and universities' railway communication letter
The demand of number professional real training.
Solve above-mentioned technical problem technical scheme be：A kind of cable emulation network for the Practical training equipment that automatically closes up
Disk it is characterised in that：Including signal connecting terminal, power resistor network, adjustment potentiometer, described power resistor network welds
Connect on a printed circuit, printed circuit board (PCB) is fixed on Practical training equipment enclosure of automatically closing up；Described adjustment potentiometer is solid
It is scheduled on and automatically closes up on Practical training equipment shell, be wired on printed circuit board (PCB), be connected with power resistor network；Described
Signal connecting terminal is fixed on and automatically closes up on Practical training equipment shell, is wired on printed circuit board (PCB), with power resistor
Network is connected.
The further technical scheme of the present invention is：Described power resistor network is divided into two groups of resistance sub-networks：For sending out
Resistance sub-network F sent, resistance sub-network J being used for reception；This resistance sub-network F, resistance sub-network J respectively pass through wire with
Described adjustment potentiometer, signal connecting terminal are connected.
The further technical scheme of the present invention is：Described resistance sub-network F is by high-power resistance RFA, high-power resistance
RFB is in series, and described resistance sub-network J is in series by high-power resistance RJA, high-power resistance RJB, and each resistance all welds
Connect on a printed circuit.
The further technical scheme of the present invention is：Described high-power resistance RFA, high-power resistance RJA adopt RXG20-
50W high power wire wound resistor, resistance is 20 ohm；Described high-power resistance RFB and high-power resistance RJB selects RXG20-
50W high power wire wound resistor, resistance is 360 ohm.
The further technical scheme of the present invention is：Described adjustment potentiometer includes adjustable resistance RVF, adjustable resistance RVJ,
This adjustable resistance RVF, adjustable resistance RVJ are connected in parallel to RFB and RJB two ends respectively.
The further technical scheme of the present invention is：Described adjustable resistance RVF, adjustable resistance RVJ is that accurate multi-turn is adjustable
Resistance.
The further technical scheme of the present invention is：Described signal connecting terminal is divided into two groups：IOF terminal, IOJ end
Son, described IOF terminal is in the pin that Practical training equipment enclosure wire is with high-power resistance RFA that automatically closes up, high-power
The pin of resistance RFB is connected；IOJ terminal draws automatically close up Practical training equipment enclosure wire and high-power resistance RJA's
Foot, the pin of high-power resistance RJB are connected.
The further technical scheme of the present invention is：At least one radiating on the described Practical training equipment shell that automatically closes up
Hole.
Due to adopting said structure, the cable emulation network disk for the Practical training equipment that automatically closes up and the existing skill of the present invention
Art is compared, and has the advantages that：
1. the demand to cable emulation for the Practical training equipment of automatically closing up can be met：
Because the present invention includes signal connecting terminal, power resistor network, adjustment potentiometer, wherein power resistor network divides
For two groups of resistance sub-networks：For resistance sub-network F sending, resistance sub-network J being used for reception；Resistance sub-network F is by big
Power resistor RFA, high-power resistance RFB are in series, and resistance sub-network J is gone here and there by high-power resistance RJA, high-power resistance RJB
Connection is constituted, and wherein high-power resistance RFA, high-power resistance RJA adopt RXG20-50W high power wire wound resistor, and resistance is 20 Europe
Nurse；High-power resistance RFB and high-power resistance RJB selects RXG20-50W high power wire wound resistor, and resistance is 360 ohm；Adjustment
The adjustable resistance RVF of potentiometer, adjustable resistance RVJ resistance are chosen as 10k, they be connected in parallel to respectively high-power resistance RFB with big
Power resistor RJB two ends.Namely high-power resistance RFB, high-power resistance RJB two ends equivalent resistance can be adjusted from 0 ohm
To 347.5 ohm, thus reaching the purpose of the resistance of simulation actual cable 1km to 15km, provide simulation for indoor signal equipment
The cable resistance that actual field uses, meets the demand to cable emulation for the Practical training equipment of automatically closing up.
2. can facilitate, simply adjust resistance, improve the efficiency of parameter testing in real training：
Because the present invention includes signal connecting terminal, power resistor network, adjustment potentiometer, wherein adjustment potentiometer includes
Adjustable resistance RVF, adjustable resistance RVJ, this adjustable resistance RVF, adjustable resistance RVJ are connected in parallel to RFB and RJB two ends respectively.Therefore,
By adjusting adjustable resistance RVF, adjustable resistance RVJ, that is, facilitate, simply adjust resistance thus dummycable, substantially increase
The efficiency of parameter testing in real training.
3. development cost is low, beneficial to the construction of railway communication signal Training Room.
Because the present invention is by a small amount of element structures such as signal connecting terminal, power resistor network, adjustment potentiometer, connectors
Become, on the premise of meeting indoor signal equipment job requirement, significantly reduce the cost of Practical training equipment, comparatively facilitate ferrum
The construction of road signal of communication Training Room.
4. prevent the artifical resistance that maloperation causes to be equal to zero ohm of phenomenon, it is to avoid frequency-shift signaling short circuit, ensure reality
The safety of instruction equipment：
Because the present invention adopts 2 power resistor series connection, and adjust each adjustable resistance and wherein of potentiometer
Power resistor circuit form in parallel, avoids from structure and is equal to zero Europe due to the cable emulation network disk that maloperation causes
Nurse（Frequency-shift signaling short circuit）Phenomenon.
5. small volume, lightweight, can easily embed in the middle of the Practical training equipment that automatically closes up：
The present invention adopts receiving terminal cable emulation network disk and transmitting terminal cable emulation network disk integrated design, Ke Yifang
Just embed Practical training equipment, its operation and maintenance is convenient and swift, also further increase practice-training teaching efficiency.
Below, in conjunction with the accompanying drawings and embodiments to the present invention for the cable emulation network disk of the Practical training equipment that automatically closes up
Technical characteristic is further described.
Brief description
Fig. 1：The structural frames of the cable emulation network disk for the Practical training equipment that automatically closes up of the present invention described in embodiment one
Figure.
Specific embodiment
Embodiment one：
A kind of cable emulation network disk for the Practical training equipment that automatically closes up, including signal connecting terminal, power resistor net
Network, adjustment potentiometer, described power resistor network welds on a printed circuit, and printed circuit board (PCB) is fixed on reality of automatically closing up
Inside instruction device housings；Described adjustment potentiometer is fixed on and automatically closes up on Practical training equipment shell, is wired to printing
On circuit board, it is connected with power resistor network；Described signal connecting terminal is fixed on and automatically closes up on Practical training equipment shell, uses
Wire connects to printed circuit board (PCB), is connected with power resistor network.On the described Practical training equipment shell that automatically closes up at least
One louvre.
Described power resistor network is divided into two groups of resistance sub-networks：For resistance sub-network F of transmission, for receive
Resistance sub-network J；Wherein resistance sub-network F is in series by high-power resistance RFA, high-power resistance RFB, and described resistance is sub
Network J is in series by high-power resistance RJA, high-power resistance RJB, and each resistance all welds on a printed circuit.Described
High-power resistance RFA, high-power resistance RJA adopt RXG20-50W high power wire wound resistor, and resistance is 20 ohm；Described is big
Power resistor RFB and high-power resistance RJB selects RXG20-50W high power wire wound resistor, and resistance is 360 ohm.This is high-power
Resistance RFA carry 1., 2. number pin, high-power resistance RFB carry 3., 4. number pin, high-power resistance RJA carries 1 ', 2 ' numbers
Pin, high-power resistance RJB carries 3 ', 4 ' numbers pins, the wherein 2. number pin of high-power resistance RFA and high-power resistance RFB
3. number pin be connected constitute series circuit；3 ' numbers pin phases of 2 ' numbers pins of high-power resistance RJA and high-power resistance RJB
Even constitute series circuit.
Described adjustment potentiometer includes adjustable resistance RVF, adjustable resistance RVJ, this adjustable resistance RVF, adjustable resistance RVJ
It is connected in parallel to high-power resistance RFB and high-power resistance RJB two ends respectively；This adjustable resistance RVF, adjustable resistance RVJ are accurate many
Circle adjustable resistance.
Described signal connecting terminal is divided into two groups：IOF terminal, IOJ terminal, this IOF terminal adopts 1, No. 2 pins of band
2 foot connectors, IOJ terminal adopts 2 foot connectors of 3, No. 4 pins of band；Wherein：
No. 1 pin of IOF terminal in automatically close up Practical training equipment enclosure wire and high-power resistance RFA 1. number
Pin is connected, and with high-power resistance RFB 4. No. 2 pins of IOF terminal are automatically closing up Practical training equipment enclosure wire
Number pin is connected；
No. 3 pins of IOJ terminal are at 1 ' number of automatically close up Practical training equipment enclosure wire and high-power resistance RJA
Pin is connected, and No. 4 pins of IOJ terminal are in the Practical training equipment enclosure wire and the 4 ' of high-power resistance RJB that automatically closes up
Number pin is connected.
Claims (8)
1. a kind of cable emulation network disk for the Practical training equipment that automatically closes up it is characterised in that：Including signal connecting terminal,
Power resistor network, adjustment potentiometer, described power resistor network welds on a printed circuit, and printed circuit board (PCB) is fixed on
Automatically close up Practical training equipment enclosure；Described adjustment potentiometer is fixed on and automatically closes up on Practical training equipment shell, uses wire
Connect to printed circuit board (PCB), be connected with power resistor network；Described signal connecting terminal is fixed on real training of automatically closing up and sets
On standby shell, it is wired on printed circuit board (PCB), is connected with power resistor network.
2. the cable emulation network disk for the Practical training equipment that automatically closes up according to claim 1 it is characterised in that：Described
Power resistor network be divided into two groups of resistance sub-networks：For resistance sub-network F sending, resistance sub-network J being used for reception；
This resistance sub-network F, resistance sub-network J are connected with described adjustment potentiometer, signal connecting terminal by wire respectively.
3. the cable emulation network disk for the Practical training equipment that automatically closes up according to claim 2 it is characterised in that：Described
Resistance sub-network F in series by high-power resistance RFA, high-power resistance RFB, described resistance sub-network J is by high-power
Resistance RJA, high-power resistance RJB are in series, and each resistance all welds on a printed circuit.
4. the cable emulation network disk for the Practical training equipment that automatically closes up according to claim 3 it is characterised in that：Described
High-power resistance RFA, high-power resistance RJA adopt RXG20-50W high power wire wound resistor, resistance be 20 ohm；Described
High-power resistance RFB and high-power resistance RJB selects RXG20-50W high power wire wound resistor, and resistance is 360 ohm.
5. the cable emulation network disk for the Practical training equipment that automatically closes up according to claim 1 it is characterised in that：Described
Adjustment potentiometer include adjustable resistance RVF, adjustable resistance RVJ, this adjustable resistance RVF, adjustable resistance RVJ are connected in parallel to greatly respectively
Power resistor RFB and high-power resistance RJB two ends.
6. the cable emulation network disk for the Practical training equipment that automatically closes up according to claim 5 it is characterised in that：Described
Adjustable resistance RVF, adjustable resistance RVJ be accurate multi-turn adjustable resistance.
7. the cable emulation network disk for the Practical training equipment that automatically closes up according to claim 4 it is characterised in that：Described
Signal connecting terminal be divided into two groups：IOF terminal, IOJ terminal, described IOF terminal is in Practical training equipment inside the shell of automatically closing up
Portion's wire is connected with the pin of high-power resistance RFA, the pin of high-power resistance RFB；IOJ terminal sets in real training of automatically closing up
Standby enclosure wire is connected with the pin of high-power resistance RJA, the pin of high-power resistance RJB.
8. the cable emulation network disk for the Practical training equipment that automatically closes up according to claim 1 to 7 any claim,
It is characterized in that：At least one louvre on the described Practical training equipment shell that automatically closes up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714858.4A CN104408987B (en) | 2014-11-29 | 2014-11-29 | Cable emulation network disk for the Practical training equipment that automatically closes up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714858.4A CN104408987B (en) | 2014-11-29 | 2014-11-29 | Cable emulation network disk for the Practical training equipment that automatically closes up |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104408987A CN104408987A (en) | 2015-03-11 |
| CN104408987B true CN104408987B (en) | 2017-03-01 |
Family
ID=52646613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410714858.4A Expired - Fee Related CN104408987B (en) | 2014-11-29 | 2014-11-29 | Cable emulation network disk for the Practical training equipment that automatically closes up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104408987B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2426830Y (en) * | 1999-12-03 | 2001-04-18 | 哈尔滨瑞兴自动化设备有限公司 | 18 information noninsulate frequency shift automatic blocking equipment |
| CN2555210Y (en) * | 2002-05-24 | 2003-06-11 | 北京全路通信信号研究设计院 | Railway signal digital cable analog network appts. |
| US20050106549A1 (en) * | 2003-11-18 | 2005-05-19 | Parija Gyana R. | Optimization of class scheduling under demand uncertainty |
| CN201405881Y (en) * | 2009-06-05 | 2010-02-17 | 固安信通铁路信号器材有限责任公司 | Lightning-protection cable simulation network disk |
| CN102372013A (en) * | 2010-08-11 | 2012-03-14 | 上海中铁通信信号国际工程有限公司 | Frequency-shift automatic block system |
| CN102310870A (en) * | 2011-05-16 | 2012-01-11 | 铁道部运输局 | ZPW-2000A track circuit system |
| CN103236204B (en) * | 2013-04-14 | 2015-05-06 | 柳州铁道职业技术学院 | ZPW-2000A frequency-shift comprehensive training platform |
| CN204348124U (en) * | 2014-11-29 | 2015-05-20 | 柳州铁道职业技术学院 | For the cable emulation network disk of the Practical training equipment that automatically closes up |
-
2014
- 2014-11-29 CN CN201410714858.4A patent/CN104408987B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104408987A (en) | 2015-03-11 |
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Granted publication date: 20170301 Termination date: 20201129 |