CN213633664U

CN213633664U - Detection equipment for low-voltage cabinet of electric locomotive

Info

Publication number: CN213633664U
Application number: CN202022760563.4U
Authority: CN
Inventors: 宋耀荣; 梁瀚之; 杨浩; 潘新虎; 何廷豹; 冯思杰
Original assignee: CRRC Lanzhou Co Ltd
Current assignee: CRRC Lanzhou Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-06
Anticipated expiration: 2030-11-25

Abstract

The application provides a check out test set of electric locomotive low-voltage cabinet, this equipment includes: the first signal transmission device outputs a plurality of target signals to be detected corresponding to the low-voltage cabinet of the electric locomotive to be detected from N preset signals to be detected to the low-voltage cabinet of the electric locomotive to be detected according to the type of the low-voltage cabinet of the electric locomotive to be detected, the N preset signals to be detected comprise signals to be detected of the low-voltage cabinet of the electric locomotive to be detected in different types, the second signal transmission device receives a plurality of target feedback signals which are output by the low-voltage cabinet of the electric locomotive to be detected and respectively correspond to the plurality of target signals to be detected and outputs the signals to the processing device, the processing device processes each target feedback signal to obtain a detection result of the target signal to be detected and outputs the result to the result output device, and the result output device outputs the detection result. Therefore, the low-voltage cabinet of the electric locomotive can be flexibly detected.

Description

Detection equipment for low-voltage cabinet of electric locomotive

Technical Field

The application relates to the technical field of electric locomotive detection, in particular to detection equipment for a low-voltage cabinet of an electric locomotive.

Background

The low-voltage cabinet of the direct-current electric locomotive has the advantages that a plurality of electrical components are arranged in the low-voltage cabinet, the lines are complex, the low-voltage cabinet needs to be detected before being installed on the locomotive, so that the control lines and the electrical components in the low-voltage cabinet after loading are guaranteed to act normally, the detection efficiency of the whole locomotive is improved, and secondary repair is avoided.

At present, when detecting a low-voltage cabinet of a direct-current electric locomotive, low-voltage cabinet detection equipment corresponding to the model of the locomotive needs to be used for detection, for example, to detect an SS7E low-voltage cabinet of the direct-current electric locomotive, low-voltage cabinet detection equipment corresponding to an SS7E low-voltage cabinet needs to be used for detection. Therefore, the flexibility of detection of the low-voltage cabinet of the electric locomotive is low.

SUMMERY OF THE UTILITY MODEL

The application provides a check out test set of electric locomotive low-voltage cabinet to the solution detects the problem that the flexibility is low to electric locomotive low-voltage cabinet.

In a first aspect, the present application provides a detection device for a low-voltage cabinet of an electric locomotive, including: the device comprises a first signal transmission device, a second signal transmission device, a processing device and a result output device, wherein the processing device is respectively connected with the first signal transmission device, the second signal transmission device and the result output device, and the first signal transmission device and the second signal transmission device are used for being connected with a low-voltage cabinet of the electric locomotive to be tested.

The first signal transmission device is used for outputting a plurality of target signals to be detected corresponding to the low-voltage cabinet of the electric locomotive to be detected from N preset signals to be detected according to the type of the low-voltage cabinet of the electric locomotive to be detected, the N preset signals to be detected comprise the signals to be detected of the low-voltage cabinet of the electric locomotive to be detected in different types, and N is an integer greater than or equal to 2.

The second signal transmission device is used for receiving a plurality of target feedback signals which are output by the low-voltage cabinet of the electric locomotive to be tested and respectively correspond to the plurality of target signals to be tested, and outputting the target feedback signals to the processing device.

And the processing device is used for processing each target feedback signal to obtain a detection result of the target signal to be detected and outputting the detection result to the result output device.

And the result output device is used for outputting the detection result.

Optionally, the first signal transmission device includes N first pins, the N first pins are connected to the low-voltage cabinet of the electric locomotive to be tested, and the N first pins correspond to the preset N signals to be tested one to one; each first pin is used for outputting a signal to be tested corresponding to the first pin.

Optionally, the system further comprises N switching devices, wherein the N switching devices are connected with the N first pins in a one-to-one correspondence manner; and the switch device is used for controlling the first pin connected with the switch device to output a corresponding signal to be detected when the switch device is in a closed state.

Optionally, the switch device includes a toggle switch and an indicator light, and the toggle switch is connected with the first stitch and the indicator light; when the toggle switch is in the first position, a first pin connected with the toggle switch is controlled to output a corresponding signal to be detected and an indicator lamp is controlled to be lightened; when the toggle switch is in the second position, the first pin connected with the toggle switch is controlled to stop outputting the corresponding signal to be detected and the indicator light is controlled to be turned off.

Optionally, the second signal transmission device includes M second pins, the M second pins are connected to the low-voltage cabinet of the electric locomotive to be tested and the processing device, and M is an integer greater than or equal to N; the second pin is used for receiving the feedback signal and outputting the feedback signal to the processing device; and the processing device is used for determining the detection result of the corresponding signal to be detected according to the model of the low-voltage cabinet of the electric locomotive to be detected.

Optionally, the processing device includes: the M relay coils are respectively connected with the M second pins in a one-to-one correspondence mode; the relay coil is used for receiving a feedback signal output by a second pin connected with the relay coil, converting the voltage of the feedback signal from a first voltage value to a second voltage value and outputting the feedback signal of the second voltage value to the PLC; and the PLC is used for receiving the feedback signal of the second voltage value and determining the detection result of the signal to be detected corresponding to the feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected and the relay coil outputting the feedback signal of the second voltage value.

Optionally, the processing device further includes: at least one digital Extension Module (EM), the at least one EM being connected to some of the M relay coils; the relay coil is connected with at least one EM and used for receiving a feedback signal output by a second pin connected with the relay coil, converting the voltage of the feedback signal from a first voltage value to a second voltage value and outputting the feedback signal of the second voltage value to the EM; and the EM is used for receiving the feedback signal of the second voltage value and determining the detection result of the signal to be detected corresponding to the feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected and the relay coil outputting the feedback signal of the second voltage value.

Optionally, the result output device includes a touch display screen; and the touch display screen is used for displaying the detection result.

Optionally, the touch display screen and the N switching devices are located on the same operation surface of the detection device of the low-voltage cabinet of the electric locomotive.

Optionally, the first signal transmission device and the second signal transmission device are located on a side surface of a lower portion of the detection device of the low-voltage cabinet of the electric locomotive.

Optionally, the touch display screen is configured to display a detection result of the signal to be detected as a green light when the detection result is no fault, and display a detection result of the signal to be detected as a red light when the detection result is a fault.

Optionally, the touch display screen is further configured to display the types of the to-be-selected multiple electric locomotive low-voltage cabinets, select an operation according to the detected type, and determine the type of the to-be-detected electric locomotive low-voltage cabinet from the types of the to-be-selected multiple electric locomotive low-voltage cabinets.

The application provides a detection equipment of electric locomotive low-voltage cabinet, according to the model of the electric locomotive low-voltage cabinet that awaits measuring through first signal transmission device, from N kinds of signals that await measuring of presetting, to the electric locomotive low-voltage cabinet that awaits measuring a plurality of target signals that await measuring corresponding with the electric locomotive low-voltage cabinet that awaits measuring, N kinds of signals that await measuring of presetting include the signals that await measuring of the electric locomotive low-voltage cabinet that awaits measuring of multiple different models, N is the integer that is more than or equal to 2, a plurality of target feedback signals that second signal transmission device received the electric locomotive low-voltage cabinet that awaits measuring output respectively with a plurality of target signals that await measuring correspond, and output to processing apparatus, processing apparatus handles every target feedback signal, obtain the testing result of target signals, and output to result output apparatus, result output apparatus outputs the testing result. Because this application testing result is accurate and the flexibility is high, can detect the electric locomotive low-voltage cabinet of multiple model, consequently, application scope is wider, can improve the detection efficiency of electric locomotive low-voltage cabinet greatly, has avoided the secondary to repair effectively, has saved the cost.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a view of a low-voltage cabinet of an electric locomotive according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to an embodiment of the present application;

fig. 3 is a schematic diagram of a first signal transmission apparatus according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application;

FIG. 5 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application;

fig. 6(a) is a control electrical schematic diagram of an interface socket of the first signal transmission device according to an embodiment of the present application;

fig. 6(b) is a control electrical schematic diagram of another interface socket of the first signal transmission device according to an embodiment of the present application;

fig. 7 is a schematic diagram of a second signal transmission apparatus according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application;

FIG. 9 is an electrical schematic diagram of the control of a relay coil provided in an embodiment of the present application;

FIG. 10 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application;

FIG. 11 is an electrical schematic diagram of the control of a PLC and EM provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application;

FIG. 13 is a schematic view of a display interface of a touch screen provided in an embodiment of the present application;

FIG. 14 is a schematic diagram of a touch display panel and N switch devices according to an embodiment of the present application;

fig. 15 is a schematic diagram of a first signal transmission device and a second signal transmission device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Before each electric cabinet of the electric locomotive is installed on the locomotive, the action of the electric cabinet is detected, so that the action of a control circuit and electric elements of the electric cabinet after loading is ensured to be normal, the detection efficiency of the whole locomotive is improved, and secondary repair is prevented. Fig. 1 is a schematic diagram of a low-voltage cabinet of an electric locomotive according to an embodiment of the present disclosure, as shown in fig. 1, two low-voltage cabinets 120 are installed on an electric locomotive 110, and the two low-voltage cabinets 120 cooperate with other components of the electric locomotive 110 to participate in control of the electric locomotive 110. The low-voltage cabinet 120 has many electrical components and complex circuits, and the detection of the low-voltage cabinet 120 is an important quality control gate. The working procedure reworking caused by the problem of the low-voltage cabinet of the electric locomotive is more, and the normal operation of the detection of the whole locomotive is influenced, so that the low-voltage cabinet of the electric locomotive needs corresponding detection equipment to be detected.

The existing market has devices for detecting the low-voltage cabinet of the direct-current electric locomotive, but the devices are all devices for detecting the low-voltage cabinet of a locomotive of a certain model, and low-voltage cabinet detection equipment suitable for a locomotive model is used for locomotives of the same model which are overhauled in batches. For example: the device is specially used for detecting the low-voltage cabinet of the SS4G locomotive, the device can only carry out Logic Control detection on the low-voltage cabinet of one type, namely three types of SS4G locomotive sub-Logic Control Unit (LCU) devices, non-LCU devices and standard cab modification devices, but the detection device can only carry out electrical Control detection on the low-voltage cabinet of the non-LCU devices. The detection equipment has no related integration and comprehensive design concept, and has single function; secondly, the information display is backward, and the feedback of information data is inconvenient; thirdly, correspond the enterprise of overhauing more motorcycle types, every motorcycle type all has check out test set, and it is great all to purchasing cost and space resource occupy, is unfavorable for depositing the management.

At present, detection equipment aiming at SS3B type, SS7C type and SS7E type direct current type electric locomotive low-voltage cabinets does not exist in the market. For example: if the SS7E electric locomotive low-voltage cabinet needs to be detected, detection equipment aiming at the SS7E electric locomotive low-voltage cabinet needs to be customized, and the detection equipment for the electrical control of the single type electric locomotive low-voltage cabinet is pre-charged to be about 15 ten thousand yuan. If the direct current type electric locomotive low-voltage cabinet of various models needs to be detected by purchasing multiple devices, a part of user technical improvement parts exist, the technical improvement parts easily cause disorder of control input and output signals, a factory which provides detection equipment needs to cooperate with an adjustment program all the time, and the influence on the production cycle of an operation field is large.

Based on the application scenario shown in fig. 1, the present application provides a detection device for low-voltage cabinets of an electric locomotive, which can detect normal actions of two low-voltage cabinets 120 corresponding to electrical components by providing detection signals to two low-voltage cabinets 120 of the electric locomotive at the same time, feed back a feedback signal to a control unit after the two low-voltage cabinets 120 normally act, perform information conversion through a measurement and control system Controller (PLC), and finally display corresponding information on a display screen. The detection equipment for the low-voltage cabinet of the direct-current electric locomotive can detect the actions of the two low-voltage cabinets 120 of the direct-current electric locomotive at the same time, detect the action performance of electrical elements such as a contactor, a breaker, a relay and a knife switch, and check a control circuit. Through the detection equipment, the problem that the direct-current type low-voltage cabinet of the electric locomotive cannot be detected before loading is solved, and the quality of an electric circuit and an electric element of the low-voltage cabinet of the electric locomotive is technically guaranteed. The detection equipment of the application is based on the modularization idea, fully demonstrates the feasibility of implementing the direct current type electric locomotive low-voltage cabinet of various models at present, comprehensively considers the input and the output of the direct current type electric locomotive low-voltage cabinet of various models at present, and is suitable for the detection of the direct current type electric locomotive low-voltage cabinet of various models. Compare in the corresponding check out test set who uses corresponding model of electric locomotive low-voltage cabinet of a model in prior art, the check out test set application scope of this application is wider, and the operation is simpler, and the testing result is accurate reliable.

Fig. 2 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to an embodiment of the present application, and as shown in fig. 2, the detection device 200 for a low-voltage cabinet of an electric locomotive according to the present embodiment includes: a first signal transmission device 210, a second signal transmission device 220, a processing device 230, and a result output device 240.

The processing device 230 is connected to the first signal transmission device 210, the second signal transmission device 220 and the result output device 240, respectively, and the first signal transmission device 210 and the second signal transmission device 220 are used for being connected to the low-voltage cabinet of the electric locomotive to be tested.

The first signal transmission device 210 is configured to output a plurality of target signals to be tested corresponding to the low-voltage cabinet of the electric locomotive to be tested from N preset signals to be tested according to the type of the low-voltage cabinet of the electric locomotive to be tested, where the N preset signals to be tested include signals to be tested of various types of low-voltage cabinets of the electric locomotive to be tested, and N is an integer greater than or equal to 2.

The second signal transmission device 220 is configured to receive a plurality of target feedback signals, which are output by the low-voltage cabinet of the electric locomotive to be tested and respectively correspond to a plurality of target signals to be tested, and output the target feedback signals to the processing device 230.

And the processing device 230 is configured to process each target feedback signal to obtain a detection result of the target signal to be detected, and output the detection result to the result output device 240.

And a result output device 240 for outputting the detection result.

In this embodiment, specifically, N is an integer greater than or equal to 2, for example, N is 40, which indicates that the first signal transmission device 210 presets 40 signals to be tested, and the preset 40 signals to be tested include signals to be tested of low-voltage cabinets of electric locomotives to be tested of different models.

For example: if the low-voltage cabinet of the electric locomotive to be tested is two low-voltage cabinets of an SS7E direct-current electric locomotive, wherein one low-voltage cabinet has 17 input signals to be tested, and the other low-voltage cabinet has 13 input signals to be tested, the first signal transmission device 210 outputs 30 target signals to be tested to the two low-voltage cabinets of the SS7E direct-current electric locomotive simultaneously from the preset 40 signals to be tested according to the model of the low-voltage cabinet of the electric locomotive to be tested, which is SS 7E. If the low-voltage cabinet of the electric locomotive to be tested is two low-voltage cabinets of an SS7C direct-current electric locomotive, wherein one low-voltage cabinet has 15 input signals to be tested, and the other low-voltage cabinet has 12 input signals to be tested, the first signal transmission device 210 outputs a total of 27 target signals to be tested to the two low-voltage cabinets of the SS7C direct-current electric locomotive from the preset 40 signals to be tested according to the model of the low-voltage cabinet of the electric locomotive to be tested, which is SS 7C. After receiving the target signals to be detected sent by the first signal transmission device 210, the low-voltage cabinet of the electric locomotive to be detected outputs target feedback signals corresponding to the target signals to be detected. For example, 30 target signals to be measured of the two low-voltage cabinets of the SS7E dc electric locomotive correspond to 44 target feedback signals; the 27 target signals to be measured of the two low-voltage cabinets of the SS7C dc electric locomotive correspond to 56 target feedback signals in total. The second signal transmission device 220 receives a plurality of target feedback signals, which are output by the low-voltage cabinet of the electric locomotive to be tested and respectively correspond to a plurality of target signals to be tested, and outputs the target feedback signals to the processing device 230. The processing device 230 processes each target feedback signal to obtain a detection result of the target signal to be detected, and outputs the detection result to the result output device 240. The result output device 240 outputs the detection result.

The application provides a check out test set of electric locomotive low-voltage cabinet, because the testing result is accurate and the flexibility is high, can detect the electric locomotive low-voltage cabinet of multiple model, consequently, application scope is wider, can improve the detection efficiency of electric locomotive low-voltage cabinet greatly, has avoided the secondary to repair effectively, has saved the cost.

On the basis of any of the above illustrated embodiments, the first signal transmission device 210 includes N first pins, where the N first pins are connected to the low-voltage cabinet of the electric locomotive to be tested, and the N first pins correspond to the preset N signals to be tested one to one; each first pin is used for outputting a signal to be tested corresponding to the first pin.

In this embodiment, according to signals to be tested of the low-voltage cabinets of the electric locomotives of various models, it is determined that the preset N kinds of signals to be tested are, for example, 40 kinds, the first signal transmission device 210 includes 40 first pins, the 40 pins correspond to the preset 40 kinds of signals to be tested one to one, and the 40 first pins are used for being connected with the low-voltage cabinet of the electric locomotive to be tested. Each first pin is used for outputting a signal to be tested corresponding to the first pin.

Fig. 3 is a schematic diagram of a first signal transmission device according to an embodiment of the present application, and as shown in fig. 3, the first signal transmission device 210 includes an interface socket 310, an interface socket 311, and pins 312 on each interface socket, each interface socket has 20 pins 312, and the two interface sockets have 40 pins 312, that is, 40 first pins. Each pin 312 on the 2 interface sockets is used for outputting a plurality of target signals to be tested corresponding to the low-voltage cabinet of the electric locomotive to be tested.

Taking two low-voltage cabinets of the SS7E dc electric locomotive as an example, table 1 shows 40 first pins and their corresponding line number codes of the signal to be detected when detecting the low-voltage cabinet. As shown in table 1: the 40 first pins are respectively positioned on the interface socket 310 and the interface socket 311, the interface socket 310 is provided with 20 pins from I1-1 to I1-20, the interface socket 311 is provided with 20 pins from I2-1 to I2-20, each pin is provided with a corresponding signal to be tested, different signals to be tested are represented by corresponding line number codes, 8 pins with the line number codes being empty are spare pins, and the expansion and use are facilitated later.

Line number coding of signals to be tested corresponding to 140 first pins in table

Table 2 shows an example of a part of the wire number codes of the signal to be measured corresponding to a low-voltage cabinet of the SS7E type dc electric locomotive, as shown in table 2, the wire number codes and definitions thereof corresponding to each first pin are included, the electric locomotive determines the wire number code and the definition of the wire number code used correspondingly during design, and the electric locomotive can be obtained by querying an electric control schematic diagram of the electric locomotive.

TABLE 2SS7E example of partial line number codes of DC-type electric locomotive-low voltage cabinet corresponding to signal to be tested

First stitch	Line number coding	Go to	Definition of
				I1-1	350L1	FE11-d	110V control positive of auxiliary grounding relay coil
I1-2	580L1	FE11	Grounding coil recovery
				I1-3	422L1	FA1-1	Primary side overcurrent relay 110V positive
I1-4	351L1	FA1-3	Primary side overcurrent relay 110V positive

In this embodiment, through N stitch with N kind of predetermined signals one-to-one that awaits measuring, can conveniently connect the electric locomotive low-voltage cabinet of multiple model and test.

On the basis of any one of the embodiments shown above, fig. 4 is a schematic diagram of a detection apparatus for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application, as shown in fig. 4, the detection apparatus for a low-voltage cabinet of an electric locomotive further includes N switching devices 250, and the N switching devices 250 are connected to the N first pins in a one-to-one correspondence manner. And the switch device 250 is used for controlling the first pin connected with the switch device to output a corresponding signal to be tested when the switch device is in a closed state. For example: n is 40, and 40 switch devices 250 are connected to the 40 first pins in a one-to-one correspondence. Each switch device 250 is configured to control the first pin connected thereto to output a corresponding signal to be tested when the switch device is in a closed state.

In this embodiment, the N switching devices 250 can flexibly control the first pins connected thereto to output corresponding signals to be tested.

On the basis of any one of the embodiments shown above, fig. 5 is a schematic diagram of a detection apparatus for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application, as shown in fig. 5, a switch device 250 includes a toggle switch 251 and an indicator lamp 252, the toggle switch 251 is connected to a first pin and the indicator lamp 252; when the toggle switch 251 is in the first position, a first pin connected with the toggle switch is controlled to output a corresponding signal to be detected and an indicator lamp is controlled to be turned on; when the toggle switch is in the second position, the first pin connected with the toggle switch is controlled to stop outputting the corresponding signal to be detected and the indicator light is controlled to be turned off.

In this embodiment, specifically, the first position represents a position where the toggle switch 251 is in an on state, and the second position represents a position where the toggle switch 251 is in an off state. When the toggle switch 251 is in an on state, a first pin connected with the toggle switch is controlled to output a corresponding signal to be detected and the indicator lamp 252 is controlled to be turned on; when the toggle switch 251 is in the off state, the first pin connected with the toggle switch is controlled to stop outputting the corresponding signal to be detected and the indicator lamp 252 is controlled to be turned off. Fig. 6(a) is a control electrical schematic diagram of an interface socket of the first signal transmission device according to an embodiment of the present application, as shown in fig. 6(a), 20 toggle switches 251 are connected to 20 indicator lamps 252 in a one-to-one correspondence manner, and when the toggle switches 251 are in an on state, the indicator lamps 252 are turned on and control the first pins to output corresponding signals to be tested; when the toggle switch 251 is in a closed state, the indicator lamp 252 is turned off and the first pin is controlled to stop outputting the corresponding signal to be detected. Fig. 6(b) is a control electrical schematic diagram of another interface socket of the first signal transmission device according to an embodiment of the present application, as shown in fig. 6(b), 20 toggle switches 251 are connected to 20 indicator lamps 252 in a one-to-one correspondence manner, and when the toggle switches 251 are in an on state, the indicator lamps 252 are turned on and control the first pins to output corresponding signals to be tested; when the toggle switch 251 is in a closed state, the indicator lamp 252 is turned off and the first pin is controlled to stop outputting the corresponding signal to be detected.

In this embodiment, through turning round switch 251, can conveniently control which signals of test, through pilot lamp 252, can clearly see which signals are doing the test, and then be convenient for control rather than the corresponding signal that awaits measuring of first stitch output that is connected.

On the basis of any of the above illustrated embodiments, the second signal transmission device 220 includes M second pins, where the M second pins are connected to the low-voltage cabinet of the electric locomotive to be tested and the processing device 230, and M is an integer greater than or equal to N; a second pin for receiving the feedback signal and outputting the feedback signal to the processing device 230; and the processing device 230 is used for determining the detection result of the signal to be detected corresponding to the type of the low-voltage cabinet of the electric locomotive to be detected.

In this embodiment, specifically, M is an integer greater than or equal to N, for example: n is 40, and according to the 40 signals to be tested of the low-voltage cabinets of the electric locomotives of various models, corresponding 60 feedback signals can be determined, that is, M is 60, the second signal transmission device 220 includes 60 second pins, and the 60 second pins are connected to the low-voltage cabinet of the electric locomotive to be tested and the processing device 230. Fig. 7 is a schematic diagram of a second signal transmission device according to an embodiment of the present application, and as shown in fig. 7, the second signal transmission device 220 includes an interface socket 710, an interface socket 711, an interface socket 712, and pins 713 in each interface socket, where each interface socket has 20 pins 713 and 60 pins 713 in total, that is, 60 second pins are provided. Each pin 713 on the 3 interface sockets is used for receiving a feedback signal sent by the low-voltage cabinet of the electric locomotive to be tested and outputting the feedback signal to the processing device 230. Each feedback signal corresponds to a signal to be tested output by a first pin included in the first signal transmission device 210. The processing device 230 determines a detection result of the signal to be detected corresponding to the received feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected.

For example: the low-voltage cabinets of the electric locomotive to be tested are two low-voltage cabinets of an SS7E dc electric locomotive, and table 3 shows that 60 second pins included in the preset second signal transmission device 220 and the line number codes of the feedback signals received by the second pins correspondingly when the electric locomotive is detected. As shown in table 3: the 60 second pins are respectively located on the interface socket 710, the interface socket 711 and the interface socket 712, the interface socket 710 has 20 pins from O1-1 to O1-20, the interface socket 711 has 20 pins from O2-1 to O2-20, and the interface socket 712 has 20 pins from O3-1 to O3-20. Each pin in the 60 second pins has a corresponding received feedback signal, different feedback signals are represented by corresponding line number codes, and 16 pins with empty line number codes are spare pins, so that the expansion and the use are convenient. The processing device 230 determines a detection result of the signal to be detected corresponding to the received feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected, which is SS7E, and the feedback signal received by each second pin in table 3.

Table 360 second pins and corresponding feedback signal line number codes thereof

Table 4 shows an example of a part of the wire number codes of the feedback signal corresponding to a low-voltage cabinet of the SS7E dc electric locomotive, as shown in table 4, the wire number codes and their definitions corresponding to each second pin are included, the electric locomotive determines the wire number code and its definition used correspondingly during design, and the electric locomotive can be obtained by querying the electric control schematic diagram of the electric locomotive.

TABLE 4 example of partial line number coding of feedback signal corresponding to SS7E type DC electric locomotive-low voltage cabinet

Second pin	Line number coding	Go to	Definition of
				O1-1	470L	KM13-2	1. 3 system fan contactor action feedback signal
O1-2	559L	QA9-14	QA9 feedback
				O1-3	472L	KM15-2	Air compressor contactor action feedback signal
O1-4	483L	FE11	FE11 feedback signal

In this embodiment, the detection feedback signals of the low-voltage cabinets of the electric locomotives in various models can be conveniently obtained through the M second pins, and the feedback signals are output to the processing device 230.

On the basis of any one of the embodiments shown above, fig. 8 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application, as shown in fig. 8, a processing device 230 includes: the M relay coils 231 and the PLC232, wherein the M relay coils 231 are respectively connected with the M second pins in a one-to-one correspondence manner; the relay coil 231 is used for receiving a feedback signal output by a second pin connected with the relay coil, converting the voltage of the feedback signal from a first voltage value to a second voltage value, and outputting the feedback signal of the second voltage value to the PLC 232; and the PLC232 is configured to receive the feedback signal of the second voltage value, and determine a detection result of the signal to be detected corresponding to the feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected and the relay coil 231 outputting the feedback signal of the second voltage value.

In this embodiment, specifically, the first voltage value is, for example, 110V, and the first voltage value is, for example, 24V. The processing device 230 includes M relay coils 231 and a PLC232, and the M relay coils 231 are respectively connected to M second pins included in the second signal transmission device 220 in a one-to-one correspondence manner. M is, for example, 60, the processing device 230 includes 60 relay coils 231, and the 60 relay coils 231 are respectively connected to the 60 second pins in a one-to-one correspondence manner. Fig. 9 is an electrical control schematic diagram of a relay coil according to an embodiment of the present invention, and as shown in fig. 9, 60 relay coils 231 are shown, a normally open contact on the relay coils 231 becomes normally closed, the relay coils 231 receive a feedback signal output by a second pin connected thereto, convert a voltage of the feedback signal from a first voltage value to a second voltage value, and output the feedback signal of the second voltage value to the PLC 232. For example, there are 24 control circuits in the PLC232, each control circuit corresponds to each relay coil 231 one by one, and a feedback signal of the signal to be measured corresponding to the model of the low-voltage cabinet of the electric locomotive to be measured is preset. The PLC232 receives the feedback signal of each second voltage value output by the relay coil 231, and determines the detection result of the signal to be detected corresponding to the feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected and the relay coil 231 outputting the feedback signal of the second voltage value.

In this embodiment, through M relay coils 231 and PLC232, the feedback signals output by M second pins can be accurately obtained, and the detection result of the signal to be detected corresponding thereto is determined according to the feedback signals.

On the basis of any one of the embodiments shown above, fig. 10 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application, and as shown in fig. 10, the processing device 230 further includes: at least one digital Extension Module (EM) 233, for example, 2 EM233, at least one EM233 being connected to a part of the M relay coils 231; the relay coil 231 is connected with at least one EM233 and is used for receiving a feedback signal output by a second pin connected with the relay coil, converting the voltage of the feedback signal from a first voltage value to a second voltage value and outputting the feedback signal of the second voltage value to the EM 233; and the EM233 is configured to receive the feedback signal of the second voltage value, and determine a detection result of the signal to be detected corresponding to the feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected and the relay coil 231 outputting the feedback signal of the second voltage value.

In this embodiment, specifically, the processing device 230 includes, for example, two EMs 233, and at least one EM233 is connected to a part of the relay coils 231 among the M relay coils 231. Each EM233 has, for example, 20 control circuits, each control circuit corresponds to each relay coil 231 one by one, and a feedback signal of a signal to be measured corresponding to the type of the low-voltage cabinet of the electric locomotive to be measured has been preset. Fig. 11 is an electrical control schematic diagram of a PLC and an EM according to an embodiment of the present invention, as shown in fig. 11, the PLC includes one PLC and two EMs 233, since the PLC can only control 24 signal inputs, the EM233 is required to perform extended use of signals, one EM233 has 20 feed signals, and in fig. 9, there are 2 EMs 233, and the PLC and the 2 EMs 233 can provide 64 signal inputs in total. For example: the second signal transmission device 220 includes 60 second pins, so that the feedback signal of the low-voltage cabinet of the electric locomotive to be tested can be sent to the corresponding 60 relay coils 231 through the 60 second pins, the 60 relay coils 231 convert the voltage of the feedback signal from the first voltage value, for example, 110V, into the second voltage value, for example, 24V, and output the feedback signal of the second voltage value to the PLC232 and the 2 EM 233. The PLC232 and the 2 EM233 receive the feedback signals of the 60 paths of second voltage values, wherein the 60 paths of control circuits of the PLC232 and the 2 EM233 processing the feedback signals correspond to the 60 relay coils 231 one by one. The PLC232 and the 2 EM233 determine a detection result of the signal to be detected corresponding to the feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected and the relay coil 231 outputting the feedback signal of the second voltage value, and the PLC232 outputs the detection result to the result output device 240 for displaying the detection result.

In this embodiment, at least one EM233 connected to the M relay coils 231 can process more feedback signals output by the second pins, and further can determine test results of the low-voltage cabinets of electric locomotives to be tested of various models.

On the basis of any of the embodiments shown above, fig. 12 is a schematic diagram of a detection device for a low-voltage cabinet of an electric locomotive according to another embodiment of the present application, as shown in fig. 12, a result output device 240 includes a touch display screen 241. And the touch display screen 241 is used for displaying the detection result.

In this embodiment, the touch display screen 241 displays the detection result output by the PLC 232. For example: and determining corresponding 60 feedback signals according to 40 signals to be tested of the low-voltage cabinets of the electric locomotives of various models, and displaying detection results corresponding to the 60 feedback signals by the touch display screen 241. Fig. 13 is a schematic view of a display interface of a touch screen provided in an embodiment of the present application, and as shown in fig. 13, the touch screen 241 includes models SS7C, SS7E, and SS3B of 3 electric locomotives, and if a current test is a model SS7E, a corresponding test result is displayed in a test result display area on the right side. Table 5, table 6, and table 7 show the corresponding display contents of the detection feedback signals corresponding to the SS7C, SS3B, and SS7E electric locomotive low-voltage cabinets on the touch display screen 241, each vehicle type has its own corresponding relationship, and the related information contents of the respective display interfaces can be determined according to the respective corresponding relationships. As can be seen from table 5, the SS7E type has 44 detection results, as can be seen from table 6, the SS7C type has 50 detection results, and as can be seen from table 7, the SS3B type has 54 detection results, wherein the feedback signal is an empty input point and is reserved for standby and convenient for later expansion. Taking the type SS7E in table 5 as an example, after the feedback signal of the 1 st path is output, it is equivalent to that the X000 input point on the PLC232 receives the feedback signal after the 24V low-voltage cabinet electrical component KM13-2 operates, and the touch display screen 241 correspondingly displays the detection result of the feedback signal, where the input point X000 corresponds to the second pin O1-1 in table 4, and the KM13-2 corresponds to the destination information in table 4 where the second pin is O1-1 and the line number code is 470L.

Table 5 display contents corresponding to SS7E type

Table 6 display contents corresponding to SS7C type

Table 7 display contents corresponding to SS3B type

In this embodiment, the user can conveniently input and view information by touching the display screen 241.

Based on any of the above-mentioned embodiments, fig. 14 is a schematic diagram of a touch display screen and N switching devices provided in an embodiment of the present application, and as shown in fig. 14, the touch display screen 241 and the N switching devices 250 are located on the same operation surface of the detection equipment of the low-voltage cabinet of the electric locomotive.

In this embodiment, the touch display screen 241 and the N switch devices 250 are located on the same operation surface of the detection device of the low-voltage cabinet of the electric locomotive, so that a user can input information, control the N switch devices 250, and view information conveniently.

On the basis of any of the above-mentioned embodiments, fig. 15 is a schematic diagram of the first signal transmission device and the second signal transmission device provided in an embodiment of the present application being located on the same side, and as shown in fig. 15, the first signal transmission device 210 and the second signal transmission device 220 are located on a side of a lower portion of the detection equipment of the low-voltage cabinet of the electric locomotive.

In this embodiment, the first signal transmission device 210 and the second signal transmission device 220 are located on a side surface of a lower portion of the detection device of the low-voltage cabinet of the electric locomotive, so that a user can conveniently connect the low-voltage cabinet of the electric locomotive to be detected.

On the basis of any of the above-mentioned embodiments, the touch display screen 241 is configured to display the detection result of the signal to be detected as a green light when the detection result is no fault, and display the detection result of the signal to be detected as a red light when the detection result is a fault.

In this embodiment, the touch display screen 241 receives the detection result output by the PLC232, taking an SS7E electric locomotive low-voltage cabinet as an example, referring to table 5, after the 1 st feedback signal is output, the touch display screen 241 receives the detection result output by the PLC232 and corresponding to the KM13-2 feedback signal, the detection of the signal is qualified, and no fault exists, the lamp corresponding to KM13-2 is displayed as a green lamp, otherwise, the detection result is represented as a fault, and the lamp corresponding to KM13-2 is displayed as a red lamp.

In this embodiment, different detection results are indicated by different colored lights through the touch display screen 241, so that a user can conveniently and intuitively check the detection results.

On the basis of any one of the embodiments, the touch display screen 241 is further configured to display the types of the to-be-selected multiple electric locomotive low-voltage cabinets, select an operation according to the detected type, and determine the type of the to-be-detected electric locomotive low-voltage cabinet from the types of the to-be-selected multiple electric locomotive low-voltage cabinets.

In this embodiment, as shown in fig. 13, the touch display screen 241 displays 3 types of low-voltage cabinets of the electric locomotive, which are: SS7C, SS7E and SS3B, after the user selects the model of the low-voltage cabinet of the electric locomotive to be tested and confirms the operation, the touch display screen 241 confirms the model of the low-voltage cabinet of the electric locomotive to be tested from the models of various electric locomotive low-voltage cabinets to be selected according to the confirmation operation, so that the first signal transmission device 210 outputs a plurality of target signals to be tested corresponding to the low-voltage cabinet of the electric locomotive to be tested from N preset signals to be tested according to the determined model of the low-voltage cabinet of the electric locomotive to be tested.

In this embodiment, the touch display screen 241 displays the types of the multiple electric locomotive low-voltage cabinets to be selected, so that a user can conveniently select the type of the electric locomotive low-voltage cabinet to be detected for detection.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A detection device for a low-voltage cabinet of an electric locomotive is characterized by comprising: the system comprises a first signal transmission device, a second signal transmission device, a processing device and a result output device, wherein the processing device is respectively connected with the first signal transmission device, the second signal transmission device and the result output device, and the first signal transmission device and the second signal transmission device are used for being connected with a low-voltage cabinet of the electric locomotive to be tested;

the first signal transmission device is used for outputting a plurality of target signals to be detected corresponding to the low-voltage cabinet of the electric locomotive to be detected from N preset signals to be detected according to the type of the low-voltage cabinet of the electric locomotive to be detected, wherein the N preset signals to be detected comprise the signals to be detected of the low-voltage cabinet of the electric locomotive to be detected in different types, and N is an integer greater than or equal to 2;

the second signal transmission device is used for receiving a plurality of target feedback signals which are output by the low-voltage cabinet of the electric locomotive to be tested and respectively correspond to the plurality of target signals to be tested, and outputting the target feedback signals to the processing device;

the processing device is used for processing each target feedback signal to obtain a detection result of the target signal to be detected and outputting the detection result to the result output device;

and the result output device is used for outputting the detection result.

2. The apparatus according to claim 1, wherein the first signal transmission device includes N first pins, the N first pins are connected to the low-voltage cabinet of the electric locomotive to be tested, and the N first pins are in one-to-one correspondence with the preset N signals to be tested;

each first pin is used for outputting a signal to be tested corresponding to the first pin.

3. The apparatus of claim 2, further comprising N switching devices, the N switching devices connected in one-to-one correspondence with the N first pins;

and the switch device is used for controlling the first pin connected with the switch device to output a corresponding signal to be detected when the switch device is in a closed state.

4. The apparatus of claim 3, wherein the switch device comprises a toggle switch and an indicator light, the toggle switch being connected to the first pin and the indicator light;

when the toggle switch is in the first position, a first pin connected with the toggle switch is controlled to output a corresponding signal to be detected and the indicator light is controlled to be lightened;

and when the toggle switch is at the second position, controlling the first pin connected with the toggle switch to stop outputting the corresponding signal to be detected and controlling the indicator lamp to be turned off.

5. The apparatus according to claim 1, wherein the second signal transmission device comprises M second pins, the M second pins are connected with the low-voltage cabinet of the electric locomotive to be tested and the processing device, and M is an integer greater than or equal to N;

the second pin is used for receiving a feedback signal and outputting the feedback signal to the processing device;

and the processing device is used for determining the detection result of the signal to be detected corresponding to the type of the low-voltage cabinet of the electric locomotive to be detected.

6. The apparatus of claim 5, wherein the processing means comprises: the M relay coils are respectively connected with the M second pins in a one-to-one correspondence manner;

the relay coil is used for receiving a feedback signal output by a second pin connected with the relay coil, converting the voltage of the feedback signal from a first voltage value to a second voltage value, and outputting the feedback signal of the second voltage value to the PLC;

and the PLC is used for receiving a feedback signal of a second voltage value and determining a detection result of the signal to be detected corresponding to the feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected and the relay coil outputting the feedback signal of the second voltage value.

7. The apparatus of claim 6, wherein the processing means further comprises: at least one digital quantity Extension Module (EM) connected with some of the M relay coils;

the relay coil is connected with the at least one EM and used for receiving a feedback signal output by a second pin connected with the relay coil, converting the voltage of the feedback signal from a first voltage value to a second voltage value and outputting the feedback signal of the second voltage value to the EM;

and the EM is used for receiving the feedback signal of the second voltage value and determining the detection result of the signal to be detected corresponding to the feedback signal according to the model of the low-voltage cabinet of the electric locomotive to be detected and the relay coil outputting the feedback signal of the second voltage value.

8. The apparatus of claim 3, wherein the result output device comprises a touch display screen;

and the touch display screen is used for displaying the detection result.

9. The apparatus of claim 8, wherein the touch screen display and the N switching devices are located on a same operating face of the detection equipment of the electric locomotive low voltage cabinet.

10. The apparatus according to any one of claims 1 to 9, wherein said first signal transmission means and said second signal transmission means are located on the side of the lower part of the detection device of the low-voltage cabinet of the electric locomotive.