WO2023169601A1 - 入口电流模拟器装置和预调试方法 - Google Patents

入口电流模拟器装置和预调试方法 Download PDF

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Publication number
WO2023169601A1
WO2023169601A1 PCT/CN2023/090038 CN2023090038W WO2023169601A1 WO 2023169601 A1 WO2023169601 A1 WO 2023169601A1 CN 2023090038 W CN2023090038 W CN 2023090038W WO 2023169601 A1 WO2023169601 A1 WO 2023169601A1
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WIPO (PCT)
Prior art keywords
contact
selection switch
variable resistor
switch
common contact
Prior art date
Application number
PCT/CN2023/090038
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English (en)
French (fr)
Inventor
赵云雷
原海清
肖拓
李焕利
安璐
蒋伟
任洪江
王新刚
尹培栋
尹晶磊
廖兴伟
李跃
张洪涛
衣玉光
Original Assignee
中铁九局集团电务工程有限公司
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Application filed by 中铁九局集团电务工程有限公司 filed Critical 中铁九局集团电务工程有限公司
Priority to JP2024501254A priority Critical patent/JP2024527747A/ja
Publication of WO2023169601A1 publication Critical patent/WO2023169601A1/zh

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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
    • B61L1/02—Electric devices associated with track, e.g. rail contacts
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Definitions

  • the invention relates to the technical field of railway signaling, and in particular to an inlet current simulator device.
  • the upgrading and transformation of coded equipment is particularly important in existing line construction. It is necessary to ensure the installation quality standards of coded equipment, ensure the operation safety of trains during the equipment installation process, and ensure The smooth opening and use of coded equipment.
  • the inlet current test is the most critical step. During the construction test, it is necessary to dismantle the existing coded equipment and install and connect the new coded equipment. The installation process takes a long time, and the inlet current test is not one section, but all sections of the entire train approach are replaced at the same time. , and then conduct testing. The construction time of skylights on existing lines is short, and it is generally difficult to complete the test.
  • the existing equipment must be tested after restoration, especially the effective operation time during skylight hours on busy trunk lines is very short.
  • the workload of the line transfer test during the existing line signal interlocking construction is very large.
  • the inlet current adjustment cannot be carried out simultaneously with other interlocking tests.
  • the debugging of other signaling equipment needs to be completed before the test can be carried out. This takes up a lot of time for line transfer, which is usually about 1 hour at a station. When the time is completed, the inlet current debugging fails, which even affects the entire construction line transfer.
  • This application provides an inlet current simulator device for simulating the pre-debugging of indoor and outdoor inlet currents to solve or alleviate the problems existing in the above-mentioned prior art.
  • the technical solution is as follows:
  • An inlet current simulator device including:
  • Test port first switching device, second switching device, first variable resistor, second variable resistor, matching box, isolation box, track voltage transformer, and ammeter;
  • test ports There are two test ports shown, used to connect the object under test;
  • the first switching device, the first variable resistor and the ammeter are electrically connected to form a first simulation circuit for simulating an outdoor test inlet current circuit
  • the second switching device, the second variable resistor, the matching box, the first variable resistor, and the ammeter are electrically connected to form a second simulation circuit for simulating testing of a four-wire system indoors.
  • the second switch device, the first variable resistor, the isolation box, and the ammeter are electrically connected to form a third simulation circuit for simulating indoor testing of a two-wire coded inlet current circuit;
  • the first analog circuit is connected to the two test ports
  • the second analog circuit is connected to the two test ports
  • the third analog circuit is connected to the two test ports
  • the first switch device includes a first selector switch and a second selector switch, both of the first selector switch and the second selector switch include a common contact, a first contact and a second contact;
  • the second switch device It includes a third selector switch and a fourth selector switch.
  • the third selector switch and the fourth selector switch each include a common contact, a first contact and a second contact; the first contact of the first selector switch and The common contact of the third selection switch is electrically connected, and the first contact of the second selection switch is electrically connected with the common contact of the fourth selection switch;
  • the first variable resistor simulates track resistance
  • the second variable resistor simulates cable resistance
  • an inlet current simulator device is provided. It can simulate indoor and outdoor working section test circuits, pre-adjust the inlet current, reduce the use of existing line construction skylights, shorten the adjustment time of the inlet current during the construction line transfer process, reduce the workload of operators, and improve the efficiency of blockade line transfer tests. , to ensure the safety and punctuality of line transfer during signal interlocking reconstruction construction. At the same time, reading data through the series ammeter is more intuitive. It can simulate four-wire and two-wire systems according to test needs to meet different test needs. It is widely used and is not restricted by test sites. It can be used indoors and outdoors.
  • Figure 1 is the system structure diagram of the inlet current simulator device
  • Figure 2 is a schematic structural diagram of the first switching device and the second switching device
  • Figure 3 is a schematic diagram of the inlet current test circuit during outdoor measurement
  • Figure 4 is a schematic diagram of the four-wire coded inlet current circuit for testing indoors
  • Figure 5 is a schematic diagram of the two-wire coded inlet current circuit for testing indoors.
  • An inlet current simulator device characterized in that the device includes:
  • Test port first switching device, second switching device, first variable resistor, second variable resistor, matching box, isolation box, track voltage transformer, and ammeter;
  • test ports There are two test ports shown, used to connect the object under test;
  • the first switching device, the first variable resistor and the ammeter are electrically connected to form a first simulation circuit for simulating an outdoor test inlet current circuit
  • the second switch device, the second variable resistor, the matching box, the first variable resistor, and the ammeter are electrically connected to form a second simulation circuit for simulating indoor testing of the four-wire coded inlet current circuit;
  • the second switch device, the first variable resistor, the isolation box, and the ammeter are electrically connected to form a third simulation circuit, which is used to simulate testing the two-wire coded inlet current circuit indoors;
  • the first analog circuit is connected to the two test ports
  • the second analog circuit is connected to the two test ports
  • the third analog circuit is connected to the two test ports.
  • Figure 1 is a schematic diagram of the simulator structure.
  • the second contact 12 of the first selection switch 1, the first variable resistor RX1, and the ammeter are connected in series with each other and are electrically connected to the second contact 22 of the second selection switch 2 to form a first analog circuit;
  • the first contact 31 , the second variable resistor RX2 , the matching box HBP-T, the first variable resistor RX1 and the ammeter are connected in series and are electrically connected to the first contact 41 of the fourth selection switch 4 to form a second analog circuit. ;
  • the second contact 32 of the third selection switch 3 After the second contact 32 of the third selection switch 3, the first variable resistor RX1, the isolation box WGL-T, and the ammeter are connected in series, they are electrically connected to the second contact 42 of the fourth selection switch 4 to form a third analog circuit .
  • the first analog circuit is used to simulate testing the inlet current circuit outdoors
  • the second analog circuit is used to simulate testing the four-wire coded inlet current circuit indoors
  • the third analog circuit is used to simulate testing the two-wire coded inlet current circuit indoors.
  • the three analog circuits are independent of each other and do not affect each other.
  • the corresponding analog circuits can be selected and connected into paths according to actual work needs for inlet current testing.
  • Each analog circuit is connected with an ammeter in series. When measuring the inlet current, the current data can be displayed intuitively, and the operation is simple and fast.
  • the three analog circuits simulate the inlet current test circuits required for different work. They are integrated into one device, which is easy to carry and has a wide range of applications. It can meet different needs to improve work efficiency, shorten test time, and reduce work intensity.
  • Figure 2 is a schematic structural diagram of the first switching device K1 and the second switching device K2.
  • the first switching device K1 includes a first selection switch 1 and a second selection switch 2.
  • the first selection switch 1 includes a common contact 10, a first contact 11 and a second contact 12.
  • the second selection switch 2 includes a common contact. 20.
  • the second switch device K2 includes a third selector switch 3 and a fourth selector switch 4.
  • the third selector switch 3 includes a common contact 30, a first contact 31 and a third selector switch 3.
  • the two contacts 32, the fourth selection 4 switch include a common contact 40, a first contact 41 and a second contact 42; the first contact 11 of the first selection switch 1 and the common contact of the third selection switch 3 30 is electrically connected, and the first contact 21 of the second selection switch 2 and the common contact 40 of the fourth selection switch 4 are electrically connected.
  • the public contacts of the selector switch can be connected to different contacts according to the needs of use.
  • Figure 3 is a schematic diagram of the simulator simulating the outdoor test inlet current circuit.
  • the first analog circuit is composed of the second contact 12 of the first selector switch 1, the first variable resistor RX1, and an ammeter connected in series and electrically connected to the second contact 22 of the second selector switch 2.
  • the common contact 10 and the second contact 12 of the first selection switch 1 are connected, the common contact 20 and the second contact 22 of the second selection switch 2 are connected, and the common contact 30 of the third selection switch 3
  • the common contact 40 of the fourth selector switch 4 is not connected with the first contact 31 and the second contact 32, the first switch device K1 and the second contact 42 are not connected.
  • the second switch device K2 is in the first connection state, and at this time, the first analog circuit is connected to the test port.
  • the first variable resistor RX1 in the first analog circuit simulates the track resistance of the test section. When outdoor testing is required, use this device to select and connect the first analog circuit, and adjust the first variable resistor RX1 according to the track length of the test section. The resistance of the variable resistor RX1 is adjusted to the same value as the track resistance of the test section, and an outdoor test entrance current circuit can be formed.
  • the test port can be used to perform entrance at the outdoor track box. Current measurement.
  • Figure 4 is a schematic diagram of the inlet current circuit simulating the four-wire coded test indoors.
  • the second analog circuit consists of the first contact 31 of the third selector switch 3, the second variable resistor RX2, the matching box HBP-T, the first variable resistor RX1, and the ammeter, connected in series, and then The first contacts 41 of the four selector switches 4 are electrically connected.
  • the common contact 10 and the first contact 11 of the first selector switch 1 are connected, the common contact 20 and the first contact of the second selector switch 2 21 connected, third choice
  • the common contact 30 of the selector switch 3 and the first contact 31 are connected, and the common contact 40 and the first contact 41 of the fourth selector switch 4 are connected, the first switching device K1 and the second switching device K2 are in the third position.
  • the second analog circuit is connected to the test port.
  • the first variable resistor RX1 simulates the track resistance of the test section
  • the second variable resistor RX2 simulates the cable resistance of the test section.
  • the first variable resistor RX1 and the second variable resistor are adjusted according to the length of the test section.
  • the RX2 resistance can form a circuit for testing the four-wire coded inlet current indoors.
  • the test port can be used to test the indoor four-wire coded inlet current at the indoor distribution board.
  • Figure 5 is a simulation of testing a two-wire coded inlet current circuit indoors.
  • the third simulation circuit consists of the second contact 32 of the third selector switch 3 and the first variable resistor. After RX1, isolation box WGL-T and ammeter are connected in series, they are electrically connected to the second contact 42 of the fourth selection switch 4.
  • the second selection The common contact 20 and the first contact 21 of the switch 2 are connected, and when the common contact 30 and the second contact 32 of the third selection switch 3, the common contact 40 and the second contact of the fourth selection switch 4
  • 42 is turned on, the first switching device K1 and the second switching device K2 are in the third connection state, the third analog circuit is connected to the test port, and the resistance value of the first variable resistor RX1 is adjusted according to the length of the test section track, so that A circuit for testing the two-wire coded inlet current indoors can be formed, and the test port can be used to test the indoor two-wire coded inlet current at the indoor distribution board.
  • This application uses variable resistors to simulate rail resistance, cable resistance, and test load, which solves the problem of heavy measurement workload during actual work and resolves the contradiction between coded test construction and railway transportation.
  • code pattern and inlet current of the coded equipment can be tested in advance.
  • the inlet current simulator can pre-adjust and test the coded code before the existing line is blocked and transferred. type and inlet current, check indoor and outdoor wiring errors, conduct thorough tests in advance on the indoor and outdoor parts of the electronic coding circuit, and ensure the accuracy of the tests.
  • the matching box HBP-T has 4 interfaces, namely the first interface A1, the second interface A2, the third interface A3 and the fourth interface A4.
  • the isolation box WGL-T has 4 interfaces, respectively. They are the first interface I1, the second interface I2, the third interface I3 and the fourth interface I4.
  • the connection of the matching box HBP-T in the second analog circuit is specifically as follows: the third interface A3 is connected in series with the second variable resistor RX2 and the first contact 31 of the third selection switch 3, and the first interface A1 is connected with the first variable resistor RX2 in series. After the resistor RX1 is connected in series with the ammeter, it is then connected to the second interface A2, and the fourth interface A4 is connected to the first contact of the fourth selection switch 4.
  • connection of the isolation box WGL-T in the third analog circuit is specifically: the third interface I3 is connected to the second contact 42 of the fourth selection switch 4, the first interface I1 is connected to the first variable resistor RX1 and the ammeter After being connected in series, it is connected to the second interface I2, and the fourth interface I4 is connected to the second contact 42 of the fourth selection switch 4.
  • the matching box HBP-T is an indoor four-wire coded track circuit equipment.
  • the connection on the second analog circuit adopts a four-wire coded track box wiring method.
  • the isolation box WGL-T is an indoor two-wire coded track circuit equipment.
  • the connection on the third analog circuit adopts the two-wire coded track box wiring method.
  • the track voltage transformer After the track voltage transformer is connected in series with a fixed resistor, it is electrically connected to the non-interface side of the isolation box WGL-T.
  • the non-interface side of the isolation box WGL-T is the other direction except the 4 interface ends.
  • the device also includes two circuit breakers, one end of the two circuit breakers is independently electrically connected to the common contacts of the first selection switch and the second selection switch, and the other end is connected to the two test ports respectively.
  • circuit breakers are connected inside the test port.
  • the circuit breakers provide overcurrent protection for the simulator to prevent large current from entering the simulator and causing damage to the simulator when the measurement position is wrong.
  • the fixed resistor short-circuit connection is no longer connected in series with the track voltage transformer on the non-interface side of the isolation box WGL-T; when the track section measured by the device is the power transmitting end, the fixed resistance is normal It is connected in series with the track pressure transformer on the non-interface side of the isolation box WGL-T.
  • the tested track section is divided into a power receiving end and a power transmitting end. Whether the fixed resistor of the third analog circuit is connected to the analog circuit depends on whether the track section is a power receiving end or a power transmitting end.
  • a method for pre-debugging of inlet current includes:
  • the common contact 10 of the first selector switch 1 and the common contact 20 of the second selector switch 2 are both connected to their respective second contacts, and the first analog circuit is connected. According to the test After adjusting the resistance of the first variable resistor RX1 for the length of the section rail, conduct an inlet current test outdoors;
  • the common contact 10 of the first selection switch 1 and the common contact 20 of the second selection switch 2 are both connected to their respective first contacts, and when the third selection switch When the common contact 30 of 3 and the common contact 40 of the fourth selector switch 4 are both connected to their respective second contacts, the third analog circuit is connected, and the resistance of the first variable resistor RX1 is adjusted according to the length of the test section rail. After the value is reached, conduct a two-wire coded inlet current test indoors.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

一种入口电流模拟器装置，包括：测试端口、第一开关装置（K1）、第二开关装置（K2）、第一可变电阻（RX1）、第二可变电阻（RX2）、匹配盒（HBP-T）、隔离盒（WGL-T）、电流表；第一开关装置（K1）、第一可变电阻（RX1）和电流表电性连接后形成第一模拟电路；第二开关装置（K2）、第二可变电阻（RX2）、匹配盒（HBP-T）、第一可变电阻（RX1）、电流表电性连接后形成第二模拟电路；第二开关装置（K2）、第一可变电阻（RX1）、隔离盒（WGL-T）、电流表电性连接后形成第三模拟电路；第一开关装置（K1）和第二开关装置（K2）处于第一连接状态时，第一模拟电路与测试端口构成通路；第一开关装置（K1）和第二开关装置（K2）处于第二连接状态时，第二模拟电路与测试端口构成通路；第一开关装置（K1）和第二开关装置（K2）处于第三连接状态时，第三模拟电路与测试端口构成通路。还提供一种入口电流预调试方法。

Description

入口电流模拟器装置和预调试方法 技术领域
本发明涉及铁路信号技术领域，特别涉及入口电流模拟器装置。
背景技术
随着我国铁路列车运行速度的不断提高，人们对列车运行的安全性、舒适性提出了更高的要求，而列车高速、平稳地运行，不仅需要高可靠的列车和高质量的线路，还需要有高可靠、高安全的信号设备来指导列车的运行。
随着ZPW-2000型设备的普及，电码化设备更新改造在既有线施工中显得尤为重要，既要保证电码化设备的安装质量标准，又要保证设备安装过程中列车的运行安全，还要保证电码化设备的顺利开通使用。其中，入口电流试验是其中最为关键的一步。在施工试验时需要拆除既有电码化设备，安装连接新设的电码化设备，安装过程需要很长时间，而且入口电流测试不是一个区段，而是整条列车进路上的所有区段同时更换，然后进行测试，既有线的施工天窗时间短，一般很难试验完成，既有设备恢复后还要进行测试，特别是繁忙干线天窗时间内有效作业时间非常短。既有线信号联锁施工转线试验工作量非常大，入口电流调整不能与其他联锁试验同步进行，需要其他信号设备调试完成才能进行测试，占用转线时间非常多，一般车站都有1小时左右时间完成，入口电流调试出现故障，甚至影响整个施工转线。
发明内容
本申请提供一种入口电流模拟器装置，用于模拟室内和室外入口电流的预调试，以解决或缓解上述现有技术中存在的问题，技术方案如下：
一种入口电流模拟器装置，包括：
测试端口、第一开关装置、第二开关装置、第一可变电阻、第二可变电阻、匹配盒、隔离盒、轨道变圧器、电流表；
所示测试端口有两个，用于连接待测对象；
所述第一开关装置、所述第一可变电阻和所述电流表电性连接后形成第一模拟电路，用于模拟在室外测试入口电流电路；
所述第二开关装置、所述第二可变电阻、所述匹配盒、所述第一可变电阻、所述电流表电性连接后形成第二模拟电路，用于模拟在室内测试四线制电码化入口电流电路；
所述第二开关装置、所述第一可变电阻、所述隔离盒、所述电流表电性连接后形成第三模拟电路，用于模拟在室内测试二线制电码化入口电流电路；
所述第一开关装置和所述第二开关装置处于第一连接状态时，第一模拟电路与两个所述测试端口接通；
所述第一开关装置和所述第二开关装置处于第二连接状态时，第二模拟电路与两个所述测试端口接通；
所述第一开关装置和所述第二开关装置处于第三连接状态时，第三模拟电路与两个所述测试端口接通；
所述第一开关装置包括第一选择开关和第二选择开关，所述第一选择开关和第二选择开关均包含公共触点、第一触点和第二触点；所述第二开关装置包括第三选择开关和第四选择开关，所述第三选择开关和第四选择开关均包含公共触点、第一触点和第二触点；所述第一选择开关的第一触点与所述第三选择开关的公共触点电性连接，所述第二选择开关的第一触点与所述第四选择开关的公共触点电性连接；
所述第一可变电阻模拟轨道电阻，第二可变电阻模拟电缆线阻。
有益效果：
本申请实施例中提供入口电流模拟器装置。能够模拟室内和室外工作区段测试电路，进行入口电流的预调整，减少既有线施工天窗的使用，缩短施工转线过程中入口电流的调整时间，减少作业人员工作量，提高封锁转线试验效率，保证信号联锁改造施工转线安全正点。同时通过串联电流表数据读取更直观。可以根据测试需要，模拟四线制和二线制，满足不同测试需求，应用广泛，不受测试场所限制，室内室外都可使用。
附图说明
图1是入口电流模拟器装置的系统结构图；
图2是第一开关装置、第二开关装置结构示意图；
图3是在室外测量时入口电流测试电路示意图；
图4是在室内测试四线制电码化入口电流电路示意图；
图5是在室内测试二线制电码化入口电流电路示意图。
具体实施方式
如图1所示，
一种入口电流模拟器装置，其特征在于，装置包括：
测试端口、第一开关装置、第二开关装置、第一可变电阻、第二可变电阻、匹配盒、隔离盒、轨道变圧器、电流表；
所示测试端口有两个，用于连接待测对象；
第一开关装置、第一可变电阻和电流表电性连接后形成第一模拟电路，用于模拟在室外测试入口电流电路；
第二开关装置、第二可变电阻、匹配盒、第一可变电阻、电流表电性连接后形成第二模拟电路，用于模拟在室内测试四线制电码化入口电流电路；
第二开关装置、第一可变电阻、隔离盒、电流表电性连接后形成第三模拟电路，用于模拟在室内测试二线制电码化入口电流电路；
第一开关装置和第二开关装置处于第一连接状态时，第一模拟电路与两个测试端口接通；
第一开关装置和第二开关装置处于第二连接状态时，第二模拟电路与两个测试端口接通；
第一开关装置和第二开关装置处于第三连接状态时，第三模拟电路与两个测试端口接通。
图1为模拟器结构示意图。第一选择开关1的第二触点12、第一可变电阻RX1、电流表彼此串联后与第二选择开关2的第二触点22电性连接形成第一模拟电路；第三选择开关3的第一触点31、第二可变电阻RX2、匹配盒HBP-T、第一可变电阻RX1、电流表串联后，与第四选择开关4的第一触点41电性连接形成第二模拟电路；第三选择开关3的第二触点32、第一可变电阻RX1、隔离盒WGL-T、电流表串联后，与第四选择开关4的第二触点42电性连接形成第三模拟电路。
第一模拟电路用来模拟在室外测试入口电流电路，第二模拟电路用来模拟在室内测试四线制电码化入口电流电路，第三模拟电路用来模拟在室内测试二线制电码化入口电流电路，三条模拟电路相互之间独立，互不影响，可以根据实际工作需要选择对应的模拟电路连接成通路进行入口电流测试。
每个模拟电路都串联有电流表，在进行入口电流测量时，可以直观的显示出电流数据，操作简单、快捷。三个模拟电路模拟了不同工作需要的入口电流测试电路，集成在一个设备上，携带方便，适用范围广，满足不同需求提高工作效率，缩短了测试时间，同时还降低了工作强度。
如图2所示，图2为第一开关装置K1和第二开关装置K2结构示意图。第一开关装置K1包括第一选择开关1和第二选择开关2，第一选择开关1包含公共触点10、第一触点11和第二触点12，第二选择开关2包含公共触点20、第一触点21和第二触点22；第二开关装置K2包括第三选择开关3和第四选择开关4，第三选择开关3包含公共触点30、第一触点31和第二触点32，第四选择4开关,包含公共触点40、第一触点41和第二触点42；第一选择开关1的第一触点11与第三选择开关3的公共触点30电性连接，第二选择开关2的第一触点21与第四选择开关4的公共触点40电性连接。可根据使用需要，选择开关的公众触点接通不同的触点。
如图3所示，图3为模拟器模拟在室外测试入口电流电路示意图。结合图2和图3，第一模拟电路由第一选择开关1的第二触点12、第一可变电阻RX1、电流表串联后与第二选择开关2的第二触点22电性连接构成，当第一选择开关1的公共触点10和第二触点12接通，第二选择开关2的公共触点20和第二触点22接通，第三选择开关3的公共触点30不和第一触点31、第二触点32接通，第四选择开关4的公共触点40不和第一触点41、第二触点42接通时，第一开关装置K1和第二开关装置K2处于第一连接状态，此时第一模拟电路与测试端口接通。其中第一模拟电路中的第一可变电阻RX1模拟测试区段的轨道阻值，当需要进行室外测试时，使用本装置选择接通第一模拟电路，根据需测试区段轨道长度调节第一可变电阻RX1的阻值，将第一可变电阻RX1阻值调整到与测试区段的轨道阻值相同，就可以形成在室外测试入口电流电路，使用测试端口在室外轨道箱处可进行入口电流测量。
如图4所示，图4为模拟在室内测试四线制电码化入口电流电路示意图。结合图2和图4，第二模拟电路由第三选择开关3的第一触点31、第二可变电阻RX2、匹配盒HBP-T、第一可变电阻RX1、电流表串联后，与第四选择开关4的第一触点41电性连接构成，当第一选择开关1的公共触点10和第一触点11接通，第二选择开关2的公共触点20和第一触点21接通，第三选 择开关3的公共触点30和第一触点接通31，第四选择开关4的公共触点40和第一触点41接通时，第一开关装置K1和第二开关装置K2处于第二连接状态，第二模拟电路与测试端口接通。其中第一可变电阻RX1模拟测试区段的轨道阻值，第二可变电阻RX2模拟测试区段的线缆线阻，根据测试区段长度调整第一可变电阻RX1和第二可变电阻RX2阻值，可以形成在室内测试四线制电码化入口电流电路，使用测试端口在室内分线盘位置即可进行室内四线制电码化入口电流的测试。
如图5所示，图5为模拟在室内测试二线制电码化入口电流电路，结合图2和图5，第三模拟电路由第三选择开关3的第二触点32、第一可变电阻RX1、隔离盒WGL-T、电流表串联后，与第四选择开关4的第二触点42电性连接构成，当第一选择开关1的公共触点10和第一触点11，第二选择开关2的公共触点20和第一触点21接通，且当第三选择开关3的公共触点30和第二触点32，第四选择开关4的公共触点40和第二触点42接通时，第一开关装置K1和第二开关装置K2处于第三连接状态，第三模拟电路与测试端口接通，根据测试区段轨道长度，调整第一可变电阻RX1阻值，就可以形成在室内测试二线制电码化入口电流电路，使用测试端口在室内分线盘位置可以进行室内二线制电码化入口电流测试。
本申请运用可变电阻，模拟钢轨阻值和线缆线阻，模拟测试负载，解决了实际工作过程中测量工作工作量大的问题，解决了电码化测试施工和铁路运输之间的矛盾。利用电子元件等设备模拟电码化电路设备终端，使用不同的模拟电路，可以提前试验电码化设备的码型和入口电流，入口电流模拟器能在既有线封锁转线前预先调整和试验电码化码型及入口电流、检查室内外配线错误，对电码化发码电路的室内、室外部分提前进行彻底的试验，并保证试验的准确率。
如图1所示，匹配盒HBP-T，有4个接口，分别为第一接口A1、第二接口A2、第三接口A3和第四接口A4，隔离盒WGL-T有4个接口，分别为第一接口I1、第二接口I 2、第三接口I 3和第四接口I4。匹配盒HBP-T在第二模拟电路中的连接具体为：第三接口A3与第二可变电阻RX2和第三选择开关3的第一触点31串联，第一接口A1与第一可变电阻RX1和电流表串联后，再与第二接口A2连接，第四接口A4与第四选择开关4的第一触点 41连接；隔离盒WGL-T在第三模拟电路中的连接具体为：第三接口I3与第四选择开关4的第二触点42相连，第一接口I1与第一可变电阻RX1和电流表串联后，再与第二接口I2连接，第四接口I4与第四选择开关4的第二触点42连接。
匹配盒HBP-T为室内四线制电码化轨道电路设备，在第二模拟电路上的连接采用四线制电码化轨道箱配线方式，隔离盒WGL-T为室内二线制电码化轨道电路设备，在第三模拟电路上的连接采用二线制电码化轨道箱配线方式。
轨道变圧器与一个固定电阻串联后，电性连接于隔离盒WGL-T的非接口侧。
隔离盒WGL-T的非接口侧，是除了4个接口端以外的其他方向。
装置还包括两个断路器，两个断路器一端分别与第一选择开关和第二选择开关的公共触点独立电性连接，另一端分别与2个测试端口相连接。
如图1所示，2个断路器3A连接在测试端口内侧，断路器为本模拟器提供过流保护，防止测量位置错误时，大电流进入模拟器造成模拟器损坏。
装置测量的轨道区段为受电端时，固定电阻短路连接不再与轨道变圧器串联连接于隔离盒WGL-T的非接口侧；装置测量的轨道区段为送电端时，固定电阻正常和轨道变圧器串联连接于隔离盒WGL-T的非接口侧。
测试的轨道区段分为受电端和送电端，第三模拟电路的固定电阻接入模拟电路与否取决于轨道区段为受电端还是送电端。
一种入口电流预调试的方法，方法包括：
当进行室外入口电流测试时，将第一选择开关1的公共触点10和第二选择开关2的公共触点20均和各自的第二触点接通，第一模拟电路接通，根据测试区段钢轨长度调整第一可变电阻RX1阻值后，在室外进行入口电流测试；
当进行室内四线制电码化电流测试时，将第一选择开关1的公共触点10和第二选择开关2的公共触点20均和各自的第一触点接通，且将第三选择开关3的公共触点30和第四选择开关4的公共触点40均和各自的第一触点接通时，第二模拟电路接通，根据测试区段钢轨长度和线缆长度分别调整第一可变电阻RX1和第二可变电阻RX2阻值后，在室内进行四线制电码化入口电流测试；
当进行室内二线制电码化电流测试时，将第一选择开关1的公共触点10和第二选择开关2的公共触点20均和各自的第一触点接通，且当第三选择开关3的公共触点30和第四选择开关4的公共触点40均和各自的第二触点接通时，第三模拟电路接通，根据测试区段钢轨长度调整第一可变电阻RX1阻值后，在室内进行二线制电码化入口电流测试。
该方法上述步骤的具体实现可以参照上述入口电流模拟器装置的相关内容，此处不再赘述。

Claims (9)

  1. 一种入口电流模拟器装置，其特征在于，所述装置包括：
    测试端口、第一开关装置、第二开关装置、第一可变电阻、第二可变电阻、匹配盒、隔离盒、轨道变圧器、电流表；
    所示测试端口有两个，用于连接待测对象；
    所述第一开关装置、所述第一可变电阻和所述电流表电性连接后形成第一模拟电路，用于模拟在室外测试入口电流电路；
    所述第二开关装置、所述第二可变电阻、所述匹配盒、所述第一可变电阻、所述电流表电性连接后形成第二模拟电路，用于模拟在室内测试四线制电码化入口电流电路；
    所述第二开关装置、所述第一可变电阻、所述隔离盒、所述电流表电性连接后形成第三模拟电路，用于模拟在室内测试二线制电码化入口电流电路；
    所述第一开关装置和所述第二开关装置处于第一连接状态时，第一模拟电路与两个所述测试端口接通；
    所述第一开关装置和所述第二开关装置处于第二连接状态时，第二模拟电路与两个所述测试端口接通；
    所述第一开关装置和所述第二开关装置处于第三连接状态时，第三模拟电路与两个所述测试端口接通；
    所述第一开关装置包括第一选择开关和第二选择开关，所述第一选择开关和第二选择开关均包含公共触点、第一触点和第二触点；所述第二开关装置包括第三选择开关和第四选择开关，所述第三选择开关和第四选择开关均包含公共触点、第一触点和第二触点；所述第一选择开关的第一触点与所述第三选择开关的公共触点电性连接，所述第二选择开关的第一触点与所述第四选择开关的公共触点电性连接；
    所述第一可变电阻模拟轨道电阻，第二可变电阻模拟电缆线阻。
  2. 如权利要求1所述的入口电流模拟器装置，其特征在于，所述第一模拟电路由所述第一选择开关的第二触点、所述第一可变电阻、所述电流表串联后与所述第二选择开关的第二触点电性连接构成，当所述第一选择开关的公共触点和第二触点接通，所述第二选择开关的公共触点和第二触点接通，所述第三选择开关的公共触点不和第一触点、第二触点接通，所述第四选择 开关的公共触点不和第一触点、第二触点接通时，所述第一开关装置和所述第二开关装置处于第一连接状态。
  3. 如权利要求1所述的入口电流模拟器装置，其特征在于，所述第二模拟电路由所述第三选择开关的第一触点、所述第二可变电阻、所述匹配盒、所述第一可变电阻、所述电流表串联后，与所述第四选择开关的第一触点电性连接构成，当第一选择开关的公共触点和第一触点接通，第二选择开关的公共触点和第一触点接通，第三选择开关的公共触点和第一触点接通，第四选择开关的公共触点和第一触点接通时，所述第一开关装置和所述第二开关装置处于第二连接状态。
  4. 如权利要求1所述的入口电流模拟器装置，其特征在于，所述第三模拟电路由所述第三选择开关的第二触点、所述第一可变电阻、所述隔离盒、所述电流表串联后，与所述第四选择开关的第二触点电性连接构成，当第一选择开关的公共触点和第一触点，第二选择开关的公共触点和第一触点接通，且当第三选择开关的公共触点和第二触点，第四选择开关的公共触点和第二触点接通时，所述第一开关装置和所述第二开关装置处于第三连接状态。
  5. 如权利要求1所述的入口电流模拟器装置，其特征在于，所述匹配盒和所述隔离盒各有4个接口，分别为第一接口、第二接口、第三接口和第四接口；
    所述匹配盒在所述第二模拟电路中的连接方式为：所述第三接口与所述第二可变电阻和所述第三选择开关的第一触点串联，所述第一接口与所述第一可变电阻和所述电流表串联后，再与所述第三接口连接，所述第四接口与所述第四选择开关的第一触点连接；所述隔离盒在所述第三模拟电路中的连接方式为：所述第三接口与所述第四选择开关的第二触点相连，所述第一接口与所述第一可变电阻和所述电流表串联后，再与所述第三接口连接，所述第四接口与所述第四选择开关的第二触点连接。
  6. 如权利要求5所述的入口电流模拟器装置，其特征在于，所述轨道变圧器与一个固定电阻串联后，电性连接于所述隔离盒的非接口侧。
  7. 如权利要求1所述的入口电流模拟器装置，其特征在于，所述装置还包括两个断路器，两个所述断路器一端分别与所述第一选择开关和第二选择开关的公共触点独立电性连接，另一端分别与2个所述测试端口相连接。
  8. 如权利要求6所述的入口电流模拟器装置，其特征在于，所述装置测量的轨道区段为受电端时，所述固定电阻短路连接不再与所述轨道变圧器串联连接于所述隔离盒的非接口侧；所述装置测量的轨道区段为送电端时，所述固定电阻正常和所述轨道变圧器串联连接于所述隔离盒的非接口侧。
  9. 一种应用于权利要求1～8任一所述的入口电流模拟器装置的预调试方法，其特征在于，包括：
    当进行室外入口电流测试时，将所述第一选择开关的公共触点和所述第二选择开关的公共触点均和各自的所述第二触点接通，所述第一模拟电路接通，根据测试区段钢轨长度调整所述第一可变电阻阻值后，在室外进行入口电流测试；
    当进行室内四线制电码化电流测试时，将所述第一选择开关的公共触点和所述第二选择开关的公共触点均和各自的所述第一触点接通，且将所述第三选择开关的公共触点和所述第四选择开关的公共触点均和各自的所述第一触点接通时，所述第二模拟电路接通，根据测试区段钢轨长度和线缆长度分别调整所述第一可变电阻和第二可变电阻阻值后，在室内进行四线制电码化入口电流测试；
    当进行室内二线制电码化电流测试时，将所述第一选择开关的公共触点和所述第二选择开关的公共触点均和各自的所述第一触点接通，且当所述第三选择开关的公共触点和所述第四选择开关的公共触点均和各自的所述第二触点接通时，所述第三模拟电路接通，根据测试区段钢轨长度调整所述第一可变电阻阻值后，在室内进行二线制电码化入口电流测试。
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