CN217278765U - Track circuit high temperature aging testing system - Google Patents
Track circuit high temperature aging testing system Download PDFInfo
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- CN217278765U CN217278765U CN202123439784.2U CN202123439784U CN217278765U CN 217278765 U CN217278765 U CN 217278765U CN 202123439784 U CN202123439784 U CN 202123439784U CN 217278765 U CN217278765 U CN 217278765U
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Abstract
The utility model relates to a track circuit high temperature aging testing system, including first sender circuit, first receiver circuit, second sender circuit, second receiver circuit, communication interface dish and track circuit maintenance terminal, first sender circuit includes the main sender, send the ware ready, the redundant controller of subsides power consumption, lightning protection simulation network dish and harmonious matching unit, first receiver circuit includes the receiver, subsides power consumption redundant controller, lightning protection simulation network dish and harmonious matching unit, second sender circuit is including sending the ware, lightning protection simulation network dish, matching transformer and tuning unit, second receiver circuit includes the receiver, gather the ware of subsiding power consumption, lightning protection simulation network dish, matching transformer and tuning unit, be used for ZPW-2000 A.J type and ZPW-2000 A.T type track circuit high temperature aging test. Compared with the prior art, the utility model has the advantages of the function is strong, efficient, guaranteed data integrality, traceability, degree of automation height.
Description
Technical Field
The utility model belongs to the technical field of the track circuit test system and specifically relates to a track circuit high temperature aging testing system is related to.
Background
In recent years, after a plurality of rail circuit devices are abnormal in operation on the whole road, the rail circuit devices are returned to a factory for passing test. The part is that other faults in the system cause the abnormal operation of track circuit equipment; the electrical characteristics of the internal components of the equipment are partially reduced, but the electrical characteristics are recovered after the equipment is electrified again, and the equipment can be electrified again by the test bench when conditions are switched, so that the problems cannot be effectively detected.
In the prior art, only an aging cabinet and a control panel are configured independently to carry out high-temperature aging test on single indoor equipment, and outdoor equipment has no high-temperature aging test system temporarily, so that the prior art cannot carry out high-temperature aging test on the whole track circuit system, great challenge is brought to after-sale repair, time cost is increased, and the root cause of equipment failure cannot be found accurately. And the transmitter, the receiver, the attenuator, the lightning protection simulation network disc, the branching collector, the matching equipment, the tuning equipment and the like belong to railway signal electronic products, are core units for controlling and commanding trains, and the stability of the quality directly influences the safety and reliability of a track circuit system.
The ZPW-2000 A.J type relay coding track circuit is a part of the existing railway signal system and is mainly characterized in that a relay is used for logical coding, single-disk indoor equipment (a transmitter, a receiver, an acquisition attenuator and the like) of the relay coding track circuit system is installed in a track circuit cabinet, a lightning protection simulation network disk and a branching acquisition unit are placed in an interface cabinet, and the cabinet is placed in a signal mechanical room of each station. The outdoor equipment comprises a tuning unit, a matching unit and a double-body protection box placed beside the steel rail.
A ZPW-2000 A.T type communication coding track circuit, a track circuit monitoring subsystem realizes real-time data monitoring by a track circuit monitoring and maintaining terminal, single-disk indoor equipment (a transmitter, a receiver and an attenuation redundancy controller) of the communication coding track circuit system is installed in a track circuit cabinet, a track circuit communication interface board and a maintaining terminal are placed in a diagnosis cabinet, a lightning protection simulation network disk and a branching collector are placed in an interface cabinet, the cabinet is placed in a signal mechanical room of each station, and outdoor equipment comprises a tuning matching unit and a double-body protection box placed beside a steel rail.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a track circuit high temperature aging testing system in order to overcome the defect that above-mentioned prior art exists, overcome current test system and only can carry out the high temperature operation test to single interior equipment, and can't carry out the defect that high temperature operation test and exist according to outdoor equipment.
The purpose of the utility model can be realized through the following technical scheme:
a high-temperature aging test system for a track circuit comprises a first sending end circuit, a first receiving end circuit, a communication interface disc and a track circuit maintenance terminal, wherein the first sending end circuit comprises a main sender, a standby sender, a first sending end attenuation redundancy controller, a first sending end lightning protection simulation network disc and a sending end tuning matching unit, the main sender and the standby sender are connected into the first sending end circuit through switching, the first sending end attenuation redundancy controller is respectively connected with the main sender and the standby sender, and the first sending end attenuation redundancy controller is also sequentially connected with the first sending end lightning protection simulation network disc and the sending end tuning matching unit and then connected into the track circuit;
the first receiving end circuit comprises a first receiver, a first receiving end attenuation redundant controller, a first receiving end lightning protection simulation network disc and a receiving end tuning matching unit which are sequentially connected, the receiving end tuning matching unit is connected to the track circuit, and the first receiving end attenuation redundant controller is also connected with a first relay;
the first receiver, the main transmitter and the standby transmitter are all in communication connection with the communication interface disc, and the communication interface disc is further connected with the track circuit maintenance terminal.
Furthermore, the track circuit high-temperature aging test system further comprises a first branch collector and a second branch collector, wherein one end of the first branch collector is connected to a connecting circuit between the first sending end lightning protection analog network disc and the sending end tuning matching unit, and the other end of the first branch collector is connected to a connecting circuit between the first receiving end lightning protection analog network disc and the receiving end tuning matching unit;
one end of the second branch collector is connected to a connecting circuit between the first transmitting end attenuation redundancy controller and the first transmitting end lightning protection analog network disc, and the other end of the second branch collector is connected to a connecting circuit between the first receiving end attenuation redundancy controller and the first receiving end lightning protection analog network disc;
and the first branch collector and the second branch collector are both in communication connection with the track circuit maintenance terminal.
Furthermore, the first transmitting end line and the first receiving end line are used for accessing a ZPW-2000 A.T type communication coding track circuit, the models of the main transmitter and the standby transmitter are ZPW.F-K types, the model of the first receiver is ZPW.J-K type, the models of the first transmitting end attenuation redundancy controller and the first receiving end attenuation redundancy controller are ZPW.RS-K types, the models of the first transmitting end lightning protection simulation network disk and the first receiving end lightning protection simulation network disk are ZPW.ML-K types, the models of the transmitting end tuning matching unit and the receiving end tuning matching unit are ZPW. 2 types, the models of the first branch collector and the second branch collector are ZPW. 2 types, and the model of the communication interface disk is ZPW.TC 2 type.
Further, the communication interface board is respectively connected with the first receiver, the main transmitter, the standby transmitter and the track circuit maintenance terminal through CAN line communication.
Further, the main transmitter and the standby transmitter are switched into the first transmitting end line through FBJ switching.
Further, the track circuit high-temperature aging test system further comprises a second transmitting end circuit and a second receiving end circuit, wherein the second transmitting end circuit comprises a second transmitter, a second transmitting end lightning protection simulation network disc, a transmitting end matching transformer and a transmitting end tuning unit which are sequentially connected, and the transmitting end tuning unit is connected into the track circuit;
the second receiving end circuit comprises a second receiver, a collecting attenuator, a second receiving end lightning protection simulation network disc, a receiving end matching transformer and a receiving end tuning unit which are connected in sequence, the receiving end tuning unit is connected to the track circuit, and the collecting attenuator is also connected with a second relay;
the acquisition attenuator is also in communication connection with the track circuit maintenance terminal.
Furthermore, the track circuit high-temperature aging test system also comprises a third branch collector and a fourth branch collector, wherein one end of the third branch collector is connected to a connecting circuit between the second sending end lightning protection simulation network disc and the sending end matching transformer, and the other end of the third branch collector is connected to a connecting circuit between the second receiving end lightning protection simulation network disc and the receiving end matching transformer;
one end of the fourth branch collector is connected to a connecting circuit between the second transmitter and the lightning protection analog network disc of the second transmitting end, and the other end of the fourth branch collector is connected to a connecting circuit between the collecting attenuator and the lightning protection analog network disc of the second receiving end;
and the third branch collector and the fourth branch collector are both in communication connection with the track circuit maintenance terminal.
Furthermore, the second transmitting end line and the second receiving end line are used for being connected with a ZPW-2000 A.J type relay coding track circuit, the model of the second transmitter is ZPW.F type, the model of the second receiver is ZPW.J type, the model of the collecting attenuator is ZPW.SC type, the models of the second transmitting end lightning protection simulation network disk and the second receiving end lightning protection simulation network disk are ZPW.ML type, the models of the third branching collector and the fourth branching collector are ZPW.CE 2 type, the models of the transmitting end matching transformer and the receiving end matching transformer are ZPW.BPL type, and the models of the transmitting end tuning unit and the receiving end tuning unit are ZPW.T type.
Furthermore, the collecting attenuator, the third branch collector and the fourth branch collector are all in communication connection with the track circuit maintenance terminal.
Furthermore, the pull-in voltages of the first relay and the second relay are within the range of 19-21V and are respectively used for indicating whether a train occupies a track or not according to the track voltages of the first receiver and the second receiver.
Compared with the prior art, the utility model discloses can carry out automatic test and record test result through track circuit maintenance terminal to keep the result in the maintenance terminal. And the fault point of the product in the test process is accurately positioned, so that the fault can be quickly eliminated conveniently, and the working efficiency is improved. Has the following advantages:
(1) the function is strong: the existing test system can only carry out high-temperature test on single equipment and cannot carry out high-temperature operation test on outdoor equipment, and the track circuit high-temperature operation test system comprises the whole 2000A and 2000K series products, comprises two sections of 2000A and 2000K respectively, and can carry out systematic test on fault products by using a control variable method according to actual requirements;
(2) the efficiency is high: the problem of abnormal work of products caused by other faults in the system is thoroughly solved, the after-sale repair work efficiency of track circuit products is improved, and a large amount of time and labor cost are saved;
(3) data integrity: the test data is more accurate, the database server can automatically store the test data, and each test record of each tested fault single disk is completely reserved;
(4) traceability: after the system finishes testing, the test information is automatically stored on the track circuit maintenance terminal, so that information gathering and query in the later period are facilitated;
(5) the automation degree is high: the utility model discloses a maintenance terminal carries out data monitoring, and the user only needs to be surveyed the track circuit product and installs on the corresponding position of this system, and the system provides automatic test function, and easy operation has reduced artifical the participation, has improved work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a track circuit high-temperature aging test system provided in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example 1
The embodiment provides a high-temperature aging test system for a track circuit, which comprises a first sending end circuit, a first receiving end circuit, a communication interface disc and a track circuit maintenance terminal, wherein the first sending end circuit comprises a main sender, a standby sender, a first sending end attenuation redundancy controller, a first sending end lightning protection simulation network disc and a sending end tuning matching unit;
the first receiving end circuit comprises a first receiver, a first receiving end attenuation redundant controller, a first receiving end lightning protection simulation network disc and a receiving end tuning matching unit which are sequentially connected, the receiving end tuning matching unit is connected to the track circuit, and the first receiving end attenuation redundant controller is also connected with a first relay;
the first receiver, the main transmitter and the standby transmitter are all in communication connection with a communication interface disc, and the communication interface disc is also connected with a track circuit maintenance terminal.
As a preferred embodiment, in order to realize the acquisition and processing of the analog quantities of the cable side and the equipment side of the cable simulation network equipment, the track circuit high-temperature aging test system further comprises a first branch collector and a second branch collector, wherein one end of the first branch collector is connected to a connecting line between the first sending end lightning protection analog network disk and the sending end tuning matching unit, and the other end of the first branch collector is connected to a connecting line between the first receiving end lightning protection analog network disk and the receiving end tuning matching unit;
one end of the second branch collector is connected with a connecting circuit between the first transmitting end attenuation redundancy controller and the first transmitting end lightning protection simulation network disc, and the other end of the second branch collector is connected with a connecting circuit between the first receiving end attenuation redundancy controller and the first receiving end lightning protection simulation network disc;
the first branch collector and the second branch collector are both in communication connection with the track circuit maintenance terminal.
In the embodiment, a first transmitting end line and a first receiving end line are used for accessing a ZPW-2000 A.T type communication coding track circuit, models of a main transmitter and a standby transmitter are both ZPW.F-K types, a model of a first receiver is ZPW.J-K type, models of a first transmitting end attenuation redundancy controller and a first receiving end attenuation redundancy controller are both ZPW.RS-K types, models of a first transmitting end lightning protection simulation network disk and a first receiving end lightning protection simulation network disk are both ZPW.ML-K types, models of a transmitting end tuning matching unit and a receiving end tuning matching unit are both ZPW.PT 2 types, models of a first branch collector and a second branch collector are both ZPW.CE 2 types, and a model of a communication disk is ZPW.TC.TC interface 2 type.
The communication interface disc is respectively connected with the first receiver, the main transmitter, the standby transmitter and the track circuit maintenance terminal through CAN line communication. The main transmitter and the standby transmitter are switched into the first transmitting end line through FBJ switching.
As a preferred embodiment, the track circuit high-temperature aging test system further includes a second transmitting end circuit and a second receiving end circuit, the second transmitting end circuit includes a second transmitter, a second transmitting end lightning protection simulation network disk, a transmitting end matching transformer and a transmitting end tuning unit, which are connected in sequence, and the transmitting end tuning unit is connected to the track circuit;
the second receiving end circuit comprises a second receiver, a collecting attenuator, a second receiving end lightning protection simulation network disc, a receiving end matching transformer and a receiving end tuning unit which are sequentially connected, the receiving end tuning unit is connected to the track circuit, and the collecting attenuator is also connected with a second relay;
the collecting attenuator is also in communication connection with the track circuit maintenance terminal.
Further, as a preferred embodiment, the track circuit high-temperature aging test system further comprises a third branch collector and a fourth branch collector, wherein one end of the third branch collector is connected to a connection line between the second sending-end lightning protection analog network panel and the sending-end matching transformer, and the other end of the third branch collector is connected to a connection line between the second receiving-end lightning protection analog network panel and the receiving-end matching transformer;
one end of the fourth branching collector is connected with a connecting circuit between the second transmitter and the lightning protection analog network disc of the second transmitting end, and the other end of the fourth branching collector is connected with a connecting circuit between the collecting attenuator and the lightning protection analog network disc of the second receiving end;
and the third branch collector and the fourth branch collector are both in communication connection with the track circuit maintenance terminal.
In this embodiment, the second transmitting end line and the second receiving end line are used for accessing a ZPW-2000A · J type relay coding track circuit, the model of the second transmitter is a ZPW · F type, the model of the second receiver is a ZPW · J type, the model of the collecting attenuator is a ZPW · SC type, the models of the second transmitting end lightning protection analog network disk and the second receiving end lightning protection analog network disk are ZPW · ML types, the models of the third branching collector and the fourth branching collector are ZPW · CE2 types, the models of the transmitting end matching transformer and the receiving end matching transformer are ZPW · BPL types, and the models of the transmitting end tuning unit and the receiving end tuning unit are ZPW · T types.
The collecting attenuator, the third branch collector and the fourth branch collector are all in communication connection with the track circuit maintenance terminal. The pull-in voltage of the first relay and the pull-in voltage of the second relay are within the range of 19-21V and are respectively used for indicating whether a train occupies a track or not according to the track voltage of the first receiver and the track voltage of the second receiver.
Preferred embodiments can be obtained by arbitrarily combining the above preferred embodiments, and a preferred embodiment will be specifically described below.
As shown in fig. 1, this example provides a rail circuit high-temperature aging test system for rail circuits of ZPW-2000A · J type and ZPW-2000A · T type, comprising two major systems, a ZPW-2000A · J type (right dotted line) and a ZPW-2000A · T type (left dotted line), respectively. The method is used for high-temperature operation test of the track circuit repair fault product, and comprises the steps of finding and testing a fault point of the product, automatically storing a test record, tracing and inquiring a test result and the like.
ZPW-2000 A.T type:
Lightning protection simulation network device 4 and lightning protection simulation network device 7: the lightning protection simulation network device 4 is a signal sending end device, the lightning protection simulation network device 7 is a signal receiving end device, the total length of the simulation compensation cable and the actual cable is 10Km, and lightning protection is carried out on indoor equipment.
The tune matching unit device 5 and the tune matching unit device 6: the tuning matching unit device 5 is a signal sending end device, the tuning matching unit device 6 is a signal receiving end device, the tuning part of the tuning part realizes the isolation of adjacent sections and the stable output of signals of the sections, and the matching part of the tuning part realizes the matching connection of the steel rail impedance and the cable impedance so as to output signals with higher power to the steel rail.
Attenuation redundancy device 3: the signals received by the track are conditioned and sent to the receiving device 11, which can provide monitoring conditions.
Branching acquisition device 8 and branching acquisition device 9: the branch acquisition equipment acquires and processes the analog quantity of the cable side and the equipment side of the cable simulation network equipment, and then packages and uploads the analog quantity to the track circuit maintenance terminal 15.
The relay 10: when the track voltage of the receiving device 11 is not less than 20V, the relay 10 is attracted, indicating that no train occupies the track.
The reception device 11: the track circuit frequency shift signal is demodulated, the track relay 10 is actuated, whether the track is broken or not and fault alarm conditions of a tuning area can be given, and the idle or occupied state of the track is uploaded to a maintenance terminal monitoring system 15 through a communication interface device 13.
The communication interface device 13: the communication interface device 13 forwards the collected data to the maintenance terminal monitoring system 15 through the CAN DE line 12 and the CAN C line 14, and simultaneously uploads the working state of the communication interface device to the maintenance terminal monitoring system 15.
Track circuit maintenance terminal monitoring system 15: the track circuit monitoring system consists of a forwarding server, a display terminal and a database file. The track circuit monitoring and maintaining terminal software completes data acquisition, data storage and data forwarding to the centralized monitoring and displaying terminal by means of the forwarding server program. And the display terminal software completes the functions of data display, alarm prompt, curve display and the like. The database file belongs to a background support module and stores basic data information of a local station track circuit frequency shift zone, a passenger special distribution line board, an interval line table, alarm configuration and the like.
ZPW-2000 A.J:
a sending device (r): logic coding condition is carried out through a relay, so that the transmitting equipment generates stable frequency shift signals, self-checking is carried out on output signals, and the CAN bus is used for carrying out fault
And alarm information is sent to the monitoring and maintenance terminal 15, and the working state and fault information of the monitoring and maintenance terminal can be uploaded to the maintenance terminal.
Lightning protection simulation network equipment and lightning protection simulation network equipment are as follows: the lightning protection simulation network equipment is signal sending end equipment, and the lightning protection simulation network equipment is signal receiving end equipment, and is used for simulating that the total length of the compensation cable and the actual cable is 10Km and performing lightning protection on indoor equipment.
Matching unit equipment and matching unit equipment are as follows: the matching unit equipment is signal sending end equipment, and the matching unit equipment is signal receiving end equipment, so that the matching connection of the steel rail impedance and the cable impedance is realized, and a signal with larger power is output to the steel rail.
Tuning unit equipment (iv) and tuning unit equipment (v): the tuning unit device is a signal sending end tuning device, and the tuning unit device is a signal receiving end tuning device, so that the isolation of adjacent sections and the stable output of signals of the sections are realized.
Ninthly, a branching acquisition device and a branching acquisition device: after the branch acquisition equipment acquires and processes the analog quantity of the cable side and the equipment side of the cable simulation network equipment, the CAN bus is used for acquiring and processing the analog quantity of the cable side and the equipment side of the cable simulation network equipment
And uploading the packages to a track circuit maintenance terminal.
Collecting decay equipment r: collecting attenuation equipment (R) adjusts frequency-shifted signal received by track, and sends it to receiving equipment
。
Receiving apparatus
: demodulating track circuit frequency shift signal to operate track relay
CAN give out the fault alarm condition of whether the track is broken and the tuning area, and CAN use the CAN bus
Uploading track free or occupancy status to maintenance terminal monitoring system 15State.
Relay device
: when receiving equipment
When the track voltage is not less than 20V, the relay
Suck up, meaning that no train occupies the track.
The working principle is as follows:
ZPW-2000 A.T type communication coding track circuit:
the main transmitting equipment 1 and the standby transmitting equipment 2 are signal sources of ZPW-2000 track circuits, external input conditions of the main transmitting equipment 1 and the standby transmitting equipment 2 are consistent, when the main transmitting equipment 1 fails, the safety door has no input, and the standby transmitting equipment 2 replaces the main transmitting equipment 1 to work through FBJ switching. The sending equipment can carry out real-time data communication with the track circuit communication interface disc 13, can generate a stable frequency shift signal when receiving a coding instruction of the maintenance terminal 15, carries out self-checking on an output signal, sends alarm information to the monitoring and maintenance terminal when in fault, and can upload self working state and fault information to the maintenance terminal. The signals enter the track through the analog network equipment 4, and the adjacent section isolation and the stable output of the signals of the section are realized by the rail side tuning matching unit, so that the impedance of the steel rail is matched and connected with the impedance of the cable, and the signals with higher power are output to the steel rail. The attenuation equipment 3 adjusts signals received from the track and sends the signals to the receiving equipment 11, the receiving equipment demodulates track circuit frequency shift signals, so that the track relay 10 is actuated, whether the track is broken and fault alarm conditions of a tuning area can be given, information is forwarded to the maintenance terminal monitoring system 15 through the communication interface equipment 13, the branch acquisition equipment acquires and processes analog quantities of a cable side and an equipment side of the analog network equipment, and then the analog quantities are packaged and uploaded to the track circuit maintenance terminal 15, so that the idle or occupied state of the track is known.
ZPW-2000 A.J type relay coding track circuit:
the relay is directly connected with the transmitter coding interface and directly acts on the transmitting equipment, the transmitting equipment reads the port input signal and then codes the signal, the signal enters the track through the analog network equipment, and the rail side tuning unit and the matching unit realize the connection of the steel rail impedance and the cable impedance, so that the signal is effectively and stably transmitted. Collecting decay equipment (R) to regulate frequency-shifted signal received by track and send it to receiving equipment
Demodulating the track circuit frequency shift signal to operate the track relay
The condition of whether the track is broken and the fault alarm condition of the tuning area CAN be given, and the collected analog quantity passes through a CAN bus
And uploaded to the maintenance terminal monitoring system 15 so that the track free or occupied status is known.
The use method of the system comprises the following steps:
the user must first determine whether the system is in a power-off state, and then don't have hot-plugging equipment. And (3) installing the fault equipment to be tested at the corresponding position of the test system by adopting a control variable method, and confirming whether the installation is correct and whether the surrounding environment is safe. After the system is powered on, the circuit breaker of the tested section is opened, the maintenance terminal monitoring subsystem is operated, the tested equipment is tested in all aspects, a special person is not needed to stare at the system, the working state of the equipment can be checked at any time, the maintenance terminal is used for checking and analyzing data, the data analysis is combined, the equipment is maintained in a targeted mode, and the equipment repair working efficiency is greatly improved.
The scheme overcomes the defects that the existing test system can only carry out high-temperature operation test on single indoor equipment and can not carry out high-temperature operation test on outdoor equipment. The test result is accurate, the test result is automatically stored, the test efficiency is high, and the test device is easy to maintain. The device is used for high-temperature operation test of track circuit fault products, thoroughly solves the problem of abnormal equipment operation caused by other faults in a track circuit system, improves the working efficiency, and saves a large amount of time cost and labor cost. The high-temperature test system comprises 2000A and 2000K devices, and is not limited to test devices such as a transmitter, a receiver, a collecting attenuator, a lightning protection simulation network disc, a branching collector, a matching unit, a tuning unit and a communication disc.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A high-temperature aging test system for a track circuit is characterized by comprising a first sending end circuit, a first receiving end circuit, a communication interface disc and a track circuit maintenance terminal, wherein the first sending end circuit comprises a main sender, a standby sender, a first sending end attenuation redundancy controller, a first sending end lightning protection simulation network disc and a sending end tuning matching unit, the main sender and the standby sender are connected to the first sending end circuit through switching, the first sending end attenuation redundancy controller is respectively connected with the main sender and the standby sender, and the first sending end attenuation redundancy controller is further connected to the first sending end lightning protection simulation network disc and the sending end tuning matching unit in sequence and then connected to the track circuit;
the first receiving end circuit comprises a first receiver, a first receiving end attenuation redundant controller, a first receiving end lightning protection simulation network disc and a receiving end tuning matching unit which are sequentially connected, the receiving end tuning matching unit is connected to the track circuit, and the first receiving end attenuation redundant controller is also connected with a first relay;
the first receiver, the main transmitter and the standby transmitter are all in communication connection with the communication interface disc, and the communication interface disc is further connected with the track circuit maintenance terminal.
2. The track circuit high-temperature aging test system according to claim 1, further comprising a first line collector and a second line collector, wherein one end of the first line collector is connected to a connection line between the first transmitting-end lightning protection analog network disk and the transmitting-end tuning matching unit, and the other end of the first line collector is connected to a connection line between the first receiving-end lightning protection analog network disk and the receiving-end tuning matching unit;
one end of the second branch collector is connected to a connecting circuit between the first transmitting end attenuation redundancy controller and the first transmitting end lightning protection analog network disc, and the other end of the second branch collector is connected to a connecting circuit between the first receiving end attenuation redundancy controller and the first receiving end lightning protection analog network disc;
and the first branch collector and the second branch collector are both in communication connection with the track circuit maintenance terminal.
3. The system of claim 2, wherein the first transmitter and the first receiver are used to access a ZPW-2000 A.T type communication coding track circuit, the main transmitter and the backup transmitter are both ZPW.F-K type, the first receiver is ZPW.J-K type, the first transmitter attenuation redundancy controller and the first receiver attenuation redundancy controller are both ZPW.RS-K type, the first transmitter lightning protection simulation network disk and the first receiver lightning protection simulation network disk are both ZPW.ML-K type, the transmitting end tuning matching unit and the receiving end tuning matching unit are both ZPW.PT 2 type, the first branch collector and the second branch collector are both ZPW.CE 2 type, the model of the communication interface disc is ZPW TC 2.
4. The track circuit high-temperature aging test system according to claim 1, wherein the communication interface board is respectively connected with the first receiver, the main transmitter, the standby transmitter and the track circuit maintenance terminal through CAN line communication.
5. The track circuit high-temperature aging test system according to claim 1, wherein the main transmitter and the standby transmitter are switched into the first transmitter line through FBJ switching.
6. The track circuit high-temperature aging test system according to claim 1, further comprising a second transmitting end circuit and a second receiving end circuit, wherein the second transmitting end circuit comprises a second transmitter, a second transmitting end lightning protection analog network disk, a transmitting end matching transformer and a transmitting end tuning unit which are connected in sequence, and the transmitting end tuning unit is connected to the track circuit;
the second receiving end circuit comprises a second receiver, a collecting attenuator, a second receiving end lightning protection simulation network disc, a receiving end matching transformer and a receiving end tuning unit which are connected in sequence, the receiving end tuning unit is connected to the track circuit, and the collecting attenuator is also connected with a second relay;
the acquisition attenuator is also in communication connection with the track circuit maintenance terminal.
7. The track circuit high-temperature aging test system according to claim 6, further comprising a third branch collector and a fourth branch collector, wherein one end of the third branch collector is connected to a connection line between the second sending-end lightning protection analog network panel and the sending-end matching transformer, and the other end of the third branch collector is connected to a connection line between the second receiving-end lightning protection analog network panel and the receiving-end matching transformer;
one end of the fourth branch collector is connected to a connecting circuit between the second transmitter and the lightning protection analog network disc of the second transmitting end, and the other end of the fourth branch collector is connected to a connecting circuit between the collecting attenuator and the lightning protection analog network disc of the second receiving end;
and the third branch collector and the fourth branch collector are both in communication connection with the track circuit maintenance terminal.
8. The system according to claim 7, wherein the second transmitting end line and the second receiving end line are used for accessing a ZPW-2000 a.j relay coding track circuit, the second transmitter is of a model zpw.f, the second receiver is of a model zpw.j, the collecting attenuator is of a model zpw.sc, the second transmitting end lightning protection simulation network panel and the second receiving end lightning protection simulation network panel are of a model zpw.ml, the third tap collector and the fourth tap collector are of a model zpw.ce 2, the transmitting end matching transformer and the receiving end matching transformer are of a model zpw.bpl, and the transmitting end tuning unit and the receiving end tuning unit are of a model zpw.t.
9. The track circuit high-temperature aging test system according to claim 7, wherein the collecting attenuator, the third branch collector and the fourth branch collector are all in communication connection with the track circuit maintenance terminal.
10. The track circuit high-temperature aging test system according to claim 6, wherein pull-in voltages of the first relay and the second relay are within a range of 19-21V and are respectively used for indicating whether a train occupies a track according to track voltages of the first receiver and the second receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123439784.2U CN217278765U (en) | 2021-12-31 | 2021-12-31 | Track circuit high temperature aging testing system |
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