CN209910984U - Tester for locomotive anti-collision soil shift device - Google Patents

Abstract

The utility model provides a locomotive anti-collision soil shift device tester, include: the induced voltage simulator is used for being connected with the anti-collision soil shift device of the locomotive to be detected and providing input of a simulated induced voltage signal for the anti-collision soil shift device; the signal detector is used for being connected with the anti-collision soil shift device of the locomotive to be detected and detecting the trigger pulse voltage sent by the anti-collision soil shift device; the alarm device is used for sending out an alarm signal when the signal detector detects the trigger pulse voltage; and the power supply is used for supplying power to the locomotive anti-collision soil shift device to be detected, the induced voltage simulator, the signal detector and the alarm device. The utility model provides a locomotive anti-collision soil shelves device tester can provide signal input under waiting to detect the static condition of locomotive anti-collision soil shelves device, tests the device, and alarm device can show the test result directly perceivedly moreover, compares with artifical test among the prior art, when can effectively detecting locomotive anti-collision soil shelves device, and is more convenient, swift.

Description

Tester for locomotive anti-collision soil shift device

Technical Field

The embodiment of the utility model provides a relate to equipment test technical field, concretely relates to locomotive anti-collision soil shift device tester.

Background

The anti-collision earth guard device for locomotive is characterized by that when some shunting machine is used in some marshalling station in the 80 s to execute night task, the driver can make mistake, and can make the shunting machine collide with end line earth guard, and then can make serious shunting and derailing, and can make serious accident and loss be large! After investigation, such accidents are not rare on the whole road, and in order to prevent the accidents from happening again and to prevent technicians from improving and lifting the anti-collision electronic parking device of the locomotive for many times, the device is loaded with thousands of sets of the anti-collision electronic parking device on each section of the whole road. In the practical use process of many years, a lot of engineering sections propose that the device is lack of scientific, good and convenient detection tools before and during use! The section maintainers can only use mobile phones or handheld radio stations to detect the triggering, unlocking and other functions of the JC-5 locomotive anti-collision soil guard device arranged on a huge, high-temperature and greasy locomotive on the vehicle and under the vehicle correspondingly by experience with conventional multimeters, magnetic test handles, speed generators and the like, and when abnormal conditions are found, the overhauling tasks can only be completed by tentatively replacing the sensors, the information boxes, the unlocking buttons and the like. In view of the above circumstances, a production factory for combining the JC-5 locomotive anti-collision soil barrier device in our section proposes a test apparatus for developing the JC-5 locomotive anti-collision soil barrier device, and the design, research and development aims to provide a test apparatus which can use a commercial power AC 220V power supply in a section inspection workshop before the JC-5 locomotive anti-collision soil barrier device is used, can use a locomotive control system power supply DC 45V/75V/110V on a locomotive, can be conveniently carried and used, and aims at the function detection of the JC-5 locomotive anti-collision soil barrier device system and the confirmation of fault parts [ including similar types of JC-5 which can also be suitable for being distributed in all regions of the country: JC-5(+) anti-collision soil-shift alarm device for industrial and mining locomotives without LKJ locomotive monitoring equipment and containing derivative products (DC45V) of single-end JC2000 type (a broken sensing input unlocking mode), Hangzhou section double-end new JC2000 type (a broken sensing input unlocking mode) and JC-5. The tester is provided with a trigger signal of an analog sensor, a direction conversion handle of an analog cab, an unlocking button of a terminal I/II, and various locomotive power supply voltage selection knobs, wherein the marks of various function selection switches, buttons and indicator lamps are clear, and the tester has the functions of linkage and error prevention.

When the anti-collision soil guard device is detected, the information box can only be subjected to factory detection in a device manufacturer before being installed. After arriving at a maintenance base of a locomotive depot, the coil resistance value, an unlocking button, the on-off state of a cable and the like of a vehicle-mounted sensor in a device can only be detected by a common multimeter at present. The detection of the anti-soil-collision device (system) on the locomotive can only be carried out by using a mobile phone or a handheld radio station by section maintainers at unlocking buttons (front I and rear II end driver rooms), an information box device (locomotive-mounted equipment room), front (I) and rear (II) end sensor installation places under the locomotive, using a direct current power supply (45V/75V or 110V) on the locomotive, a conventional universal meter, a special magnetic test bar, a speed generator, a monitoring device combined with an LKJ locomotive, an LED indicator lamp on an observation information box, a display screen of the monitoring device of the LKJ locomotive and the like at present, the triggering function and the unlocking function of the anti-collision soil-blocking device arranged on a large, high-temperature and greasy-dirt locomotive are correspondingly checked on the upper part and the lower part of the locomotive, when abnormal conditions are found, only the sensor, the information box, the unlocking button and the like can be disassembled and replaced to complete the maintenance task. Therefore, it is very inconvenient!

Therefore, how to provide a locomotive anti-collision soil-lock device tester, when can effectively detect locomotive anti-collision soil-lock device, more convenient, swift is the technical problem that technical staff in the field need to solve urgently.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a locomotive anti-soil-collision gear device tester, when can effectively detecting the locomotive anti-soil-collision gear device, it is more convenient, swift.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the utility model provides a locomotive anti-collision soil-shifting device tester, includes:

the induced voltage simulator is used for being connected with the anti-collision soil shift device of the locomotive to be detected and providing input of a simulated induced voltage signal for the anti-collision soil shift device;

the signal detector is used for being connected with the anti-collision soil shift device of the locomotive to be detected and detecting the trigger pulse voltage sent by the anti-collision soil shift device;

the alarm device is used for sending out an alarm signal when the signal detector detects the trigger pulse voltage;

and the power supply is used for supplying power to the locomotive anti-collision soil shift device to be detected, the induced voltage simulator, the signal detector and the alarm device.

Preferably, the method further comprises the following steps:

the ammeter is used for measuring the total current of the power supply;

the voltmeter is used for measuring the trigger pulse voltage;

and the indicator light is used for displaying whether the power supply works normally.

Preferably, the first and second electrodes are formed of a metal,

the power supply is a 220V alternating current power supply or a locomotive control system power supply;

the plug of the power supply is a reverse connection prevention and error prevention plug of the power supply.

Preferably, the method further comprises the following steps: the power supply selection module is connected with the power supply;

the power selection module comprises:

the alternating current selection module is used for selecting an alternating current power supply;

and the direct current selection module is used for selecting the direct current power supply.

Preferably, the method further comprises the following steps:

and the voltage grade selection module is connected with the power supply module and is used for selecting different voltage grades.

Preferably, the first and second electrodes are formed of a metal,

the alarm device comprises: a buzzer and/or a warning light.

Preferably, the method further comprises the following steps: and the unlocking button is used for releasing the simulated induced voltage signal sent by the induced voltage simulator or the induced voltage signal of the vehicle-mounted sensor.

Preferably, the method further comprises the following steps:

and the output interface is used for outputting the trigger pulse voltage to LKJ locomotive monitoring equipment.

Preferably, the method further comprises the following steps: the sensor interface is used for connecting a receiving sensor of the locomotive anti-collision soil-guard device to be detected;

and the resistance meter is used for measuring the resistance value of the receiving sensor.

Preferably, the first and second electrodes are formed of a metal,

the signal detector is a voltage comparator and is used for comparing whether the trigger pulse voltage reaches a preset threshold value when detecting the trigger pulse voltage.

The utility model provides a locomotive anti-collision soil-shifting device tester, includes: the induced voltage simulator is used for being connected with the anti-collision soil shift device of the locomotive to be detected and providing input of a simulated induced voltage signal for the anti-collision soil shift device; the signal detector is used for being connected with the anti-collision soil shift device of the locomotive to be detected and detecting the trigger pulse voltage sent by the anti-collision soil shift device; the alarm device is used for sending out an alarm signal when the signal detector detects the trigger pulse voltage; and the power supply is used for supplying power to the locomotive anti-collision soil shift device to be detected, the induced voltage simulator, the signal detector and the alarm device. The utility model provides a locomotive anti-collision soil shelves device tester can provide the simulation and induce voltage signal to can provide signal input under waiting to detect the static condition of locomotive anti-collision soil shelves device, test the device, alarm device can show the test result directly perceivedly moreover, compares with the mode of artifical test among the prior art, when can effectively detecting locomotive anti-collision soil shelves device, and is more convenient, swift.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of a structure of a tester for a locomotive anti-collision device according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a test example of a tester for a locomotive anti-collision gear device according to an embodiment of the present invention;

FIG. 3 is a schematic block diagram of a locomotive anti-collision device applied to a locomotive anti-collision device tester of the present application;

FIG. 4 is a schematic view of a wiring structure of a bumper device and a cable for a motorcycle;

fig. 5 is a schematic view of an internal schematic structure of a tester for a locomotive anti-collision gear device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a panel structure of a tester for a locomotive anti-collision device according to an embodiment of the present invention.

The drawings are identified below: the device comprises a locomotive anti-collision soil-shifting device tester 100, an induced voltage simulator 110, a signal detector 120, an alarm device 130, a power supply 140, a locomotive anti-collision soil-shifting device 200, a locomotive driving wheel 310, a steel rail 320, a magnetic steel ground point type device 330, a vehicle-mounted point type device receiving coil 340, an information conversion device 350, a monitoring device 360, a locomotive power supply 410, a forward and backward switching device 420, an LKJ monitoring device 430, an I-end unlocking button 440, an II-end unlocking button 450, an I-end mechanical sensing coil 460, an II-end mechanical sensing coil 470 and a locomotive point type information conversion device 480.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a tester for a soil impact resistance device of a locomotive according to an embodiment of the present invention; fig. 2 is a schematic view of a test example of a tester for a locomotive anti-collision device according to an embodiment of the present invention.

The utility model relates to an in the detailed implementation manner, the embodiment of the utility model provides a locomotive anti-soil-collision shelves device tester 100, include: the induced voltage simulator 110 is used for being connected with the anti-collision soil shift device of the locomotive to be detected and providing input of a simulated induced voltage signal for the anti-collision soil shift device; the signal detector 120 is used for being connected with the anti-collision soil shift device of the locomotive to be detected and detecting the trigger pulse voltage sent by the anti-collision soil shift device; an alarm device 130, configured to send an alarm signal when the signal detector 120 detects the trigger pulse voltage; and the power supply 140 is used for supplying power to the locomotive soil-impact-resistant gear device to be detected, the induced voltage simulator 110, the signal detector 120 and the alarm device 130.

In a specific practice, the induced voltage simulator 110 may be simulated by connecting a dc power supply to a switch, and the closing time of the switch may be manually controlled, so that a voltage signal of the dc power supply may be transmitted to a signal input terminal of the locomotive anti-collision device 200. A self-healing current limiting element may also be connected in series with the power supply 140 to prevent excessive current, short circuit faults, etc. from flowing through the tester 100. Specifically, the alarm device 130 may be set to an alarm mode of an acoustic, optical, electrical, or the like signal. Of course, after the signal detector 120 detects the trigger pulse voltage, the signal detector 120 may specifically send out a control signal as a switching signal to start a large current to drive the alarm device 130. After the induced signal or the analog induced signal and the direction signal and the signal needing to be unlocked are comprehensively judged by the logic circuit, whether a high potential is output or not is determined, if the high potential exists, the power switch triode is switched on, the relay is switched on, and the voltage of the locomotive control system is transmitted to the LKJ locomotive monitoring device through the current limiting resistor to enter an anti-collision program.

In actual testing, the induced voltage simulator 110 may be replaced by a pulse voltage signal induced by an actual on-board point receiving coil device, that is, not in a simulation manner, but driven by an actual signal.

Referring to fig. 3 and 4, fig. 3 is a schematic diagram of a locomotive anti-collision device applied to a locomotive anti-collision device tester 100 according to the present application; fig. 4 is a schematic diagram of a wiring structure of the information conversion apparatus shown in fig. 3.

When the driving wheel 310 runs on the steel rail 320, the vehicle-mounted point type receiving coil 330 mounted on the locomotive and the ground point type magnetic steel device 330 mounted on the ground form a voltage pulse signal due to cutting magnetic lines of force, the voltage pulse signal is converted into a signal which can be received by the LKJ locomotive monitoring device 360 through the information conversion device 350, and a series of actions such as locomotive deceleration, slow running, emergency braking and the like are performed through the LKJ monitoring device 360, so that the purpose of safe running of the locomotive is achieved.

Specifically, as shown in fig. 4, for the information conversion device, the locomotive power source 410, the forward and backward switching device 420, the LKJ monitoring device 430, the i-terminal unlocking button 440, and the ii-terminal unlocking button 450 are connected to the information conversion device 480 through an X1 interface provided on the information conversion device 480 to perform power supply and signal transmission, and the i-terminal induction coil 460 and the ii-terminal induction coil 470 transmit the sensed pulse signals to the information conversion device 480 through an X2 port provided on the locomotive point-type information conversion device 480 for further processing. Of course, the driving direction of the locomotive also has an influence on the information conversion device, and the driving direction of the locomotive can be specifically set in the tester according to the information device. Accordingly, an i-terminal unlock button indicator light and an ii-terminal unlock button indicator light may be provided to indicate whether the i-terminal unlock button 440 and the ii-terminal unlock button 450 are in an unlocked state, respectively. In addition, an indicator light of the running direction of the locomotive can be arranged.

And in the utility model provides an among the locomotive anti-collision soil shelves device tester 100, through the pulse signal that I end machine induction coil 460, II end machine induction coil 470 produced of the simulation of induced voltage simulator 110, and information conversion device 480 receives the pulse signal after, handles the utility model discloses in, directly with the signal output of output to signal detector 120, with direction signal and whether need the unblock signal after logical synthesis judges, decide whether to export the high potential, if have the high potential time switch on the switch triode of doing work to can further start alarm device 130, and make the relay actuation, with locomotive control system voltage defeated to LKJ locomotive monitoring device entering anticollision procedure through current-limiting resistance. The signal detector 120 uses a voltage comparator, such as a four-operational amplifier voltage comparator, to detect whether the trigger pulse voltage reaches a preset threshold, and if so, activates an alarm device. When the signal detector 120 is a four-operational amplifier voltage comparator, it may be configured to receive the trigger pulse voltage, and the integrated logic determines the input signal voltage, the direction voltage, the unlocking required voltage, and the like, and determines whether to output a high-voltage pulse to the LKJ through the voltage conversion circuit and the relay.

Further, in order to display whether the current voltage and the like in the tester 100 for the anti-soil-collision device of the present vehicle normally work, an ammeter may be further provided for measuring the total current of the power supply 140; a voltmeter to measure the high voltage pulse voltage to LKJ; and an indicator light for displaying whether the power supply 140 works normally, and of course, for other functional modules, corresponding indicator lights with various colors may be provided to indicate whether the functional modules work normally.

When the power supply 140 of the embodiment of the present invention is set, since the tester 100 for the anti-soil-collision device of the present vehicle has various testing environments, the power supply 140 needs to be set specially, for example, when a system or a component in front of a new vehicle is detected or warehoused for inspection after purchase in an inspection base of a service section, a general 220V ac power is easily obtained, so that the power supply 140 can be set to be a 220V ac power input; the dc plug of the power supply 140 is a power supply reverse connection prevention plug. In order to prevent the reverse connection of the power source 140 and the wrong insertion during the use depending on the distance, the number of pins, etc., a three-hole, two-hole asymmetric plug, or another special-shaped plug may be used. Moreover, the tester is provided with a direct current input interface and an output interface, and the direct current input interface and the output interface can be provided with an anti-misplug interface.

Of course, also can directly utilize the direct current control system power supply on the locomotive to be provided the utility model discloses a locomotive anti-soil-shifting device tester 100 supplies power, consequently when specifically designing, still needs to set up: a power supply 140 selection module connected to the locomotive dc control system power supply; the power supply 140 selection module includes: the alternating current and direct current selection is used for selecting an alternating current power supply or a direct current power supply; and the direct current selection module is used for selecting different direct current power supplies of the locomotive direct current control system. Therefore, the conversion and selective use of alternating current and direct current can be realized, and certainly, an alternating current power supply is used, and alternating current needs to be transformed and converted into direct current through a transformer and a rectifying device to be used by the tester 110.

When a locomotive control system power supply is directly used, a proper locomotive control system power supply is set through a voltage selection knob, a power supply 140 interface carried by equipment on a locomotive is connected with a locomotive power supply with different system control power supply values, and the triggering and transmission functions of a cable-containing part of a vehicle-mounted sensor of a DC75V or DC110V information box can be detected by using a specification of a locomotive anti-collision soil shift device tester 100; the device comprises an analog sensor (without a cable part) triggering function when the vehicle-mounted sensor is not used, a front and rear direction change-over switch, a corresponding front and rear sensor triggering function and a corresponding front and rear unlocking button function. Therefore, it is necessary to design a voltage class selection module connected to the power supply 140 module in the vehicle bumper tester 100 for selecting different voltage classes.

Further, for the alarm device 130, it may include: a buzzer and/or a warning light. Of course, when the locomotive needs to directly pass through the alarm point and the function of the locomotive anti-collision bumper device 200 needs to be released, an unlocking button needs to be arranged for releasing the induced voltage signal of the vehicle-mounted sensor.

Of course, the tester 100 for the anti-soil-collision gear device of the local locomotive may also be provided with an output interface for outputting the trigger pulse voltage to the LKJ locomotive monitoring equipment. That is, when the present tester 100 is used directly on a locomotive, an LKJ locomotive control device may be connected for more comprehensive testing

It is worth to be noted that, since the locomotive soil guard device 200 includes: in this embodiment, in order to further test the locomotive anti-collision device, a sensor interface for connecting a receiving sensor of the locomotive anti-collision device to be detected may be further arranged in the locomotive anti-collision device tester 100; and the resistance meter is used for measuring the resistance value of the receiving sensor.

Referring to fig. 5 and 6, fig. 5 is a schematic view illustrating an internal schematic structure of a tester for a soil-impact-resistant device of a locomotive according to an embodiment of the present invention; fig. 6 is a schematic diagram of a panel structure of a tester for a locomotive anti-collision device according to an embodiment of the present invention.

On the basis of the above-mentioned embodiments, in the present embodiment, the panel of the tester for the anti-collision device of the locomotive and the internal principle structure thereof are mainly described.

The following table I: panel label name and action description table:

table one: panel label name and function instruction table

The main technical expected effects of the tester for the anti-collision soil-shift device of the locomotive provided in the embodiment are as follows:

1. provide scientific and correct judgment information for field maintenance in time, thereby improving the maintenance efficiency and the fault judgment accuracy!

2. The on-site carrying of various tools and spare parts is avoided, the calling contact of the maintainers on and off the vehicle is avoided, the damage of the parts can be correctly judged by adopting the tester, the overhaul time and cost of the locomotive are saved, and the labor intensity is reduced.

3. Maintenance management has a data value reference, e.g. triggering LKJ input voltage value!

4. Ensure the driving safety!

5. Can be used as an acceptance tool for delivering products by a manufacturer, and kicks off defective products before entering a segment warehouse.

6. Portable, full-function, suitable for all kinds of known anti-collision devices,

7. AC/DC dual-purpose, DC/DC wide voltage conversion module, self-recovery current-limiting protection,

8. the vehicle is used as a vehicle and a base; iron road and industrial and mining locomotive are used,

9. anti-reverse connection of power supply and anti-misplug measures when in use according to the distance, the limitation of the number of pins and the like,

10, the electromagnetic induction type/Hall sensor is dual-purpose, only a single I-end sensor can be used for replacing a II-end sensor,

11. triggering output of triple prompts of sound, light and voltmeter values!

12. Lithium battery analog triggering, lithium battery self-charging, optical fiber conduction charging (red), discharging (white light button) indication,

13. outputting a trigger signal voltage to an LKJ device: the voltage value is the value of the locomotive operating power supply V minus 25 (+/-5V), the vehicle speed or the vehicle speed generator value must reach >3km/h, LKJ can enter the normal working state! (including the linear speed of shaking the test handle), but when a Hall type receiving sensor is adopted, the triggering speed can be 0!

14. The on-off condition of the laid cable system of the shunting machine can be tested,

the main technical indexes of the tester for the locomotive anti-collision soil-shift device provided by the embodiment are as follows:

A. a working power supply: AC 220V (+/-10%); DC 45/75/110V (+/-10%) various supply voltages can be selected for use,

B. the current of 0-150 mA and the voltage of 0-150V are measured by a pointer meter,

C. the resistance value of the sensor is measured by a digital meter of 0-2000 omega,

D. the use temperature range is as follows: 30 ℃ below zero to 60 ℃,

E. the humidity range used: 30 to 90 percent of the total weight of the mixture,

F. under normal atmospheric pressure: the pressure of the mixture is 1 atmosphere,

G. the tester consumes <10W of power by itself,

H. the tester outputs power: DC45V, 10-20W (only used for industrial and mining locomotives JC-5 (+)),

I. outputting to LKJ trigger voltage: locomotive operating power (V) value minus 25 +/-5V

J. The external dimension is as follows: the length is 26cm, the width is 18cm, the height is 11cm,

K. basically conforms to the relevant clauses of GB/T25119-2010 rail transit locomotive vehicle electronic device,

l, basis weight: 2.3 kg.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. The utility model provides a locomotive soil-impact prevention shelves device tester which characterized in that includes:

the induced voltage simulator is used for being connected with the anti-collision soil shift device of the locomotive to be detected and providing input of a simulated induced voltage signal for the anti-collision soil shift device;

the signal detector is used for being connected with the anti-collision soil shift device of the locomotive to be detected and detecting the trigger pulse voltage sent by the anti-collision soil shift device;

the alarm device is used for sending out an alarm signal when the signal detector detects the trigger pulse voltage;

and the power supply is used for supplying power to the locomotive anti-collision soil shift device to be detected, the induced voltage simulator, the signal detector and the alarm device.

2. The locomotive anti-crash soil-shifting device tester as recited in claim 1, further comprising:

the ammeter is used for measuring the total current of the power supply;

the voltmeter is used for measuring the trigger pulse voltage;

and the indicator light is used for displaying whether the power supply works normally.

3. The locomotive anti-crash soil-shifting device tester as recited in claim 1,

the power supply is a 220V alternating current power supply or a locomotive control system power supply;

the plug of the power supply is a reverse connection prevention and error prevention plug of the power supply.

4. The locomotive anti-crash soil-shifting device tester as recited in claim 1, further comprising: the power supply selection module is connected with the power supply;

the power selection module comprises:

the alternating current selection module is used for selecting an alternating current power supply;

and the direct current selection module is used for selecting the direct current power supply.

5. The locomotive anti-crash soil-shifting device tester as recited in claim 1, further comprising:

and the voltage grade selection module is connected with the power supply module and is used for selecting different voltage grades.

6. The locomotive anti-crash soil-shifting device tester as recited in claim 1,

the alarm device comprises: a buzzer and/or a warning light.

7. The locomotive anti-crash soil-shifting device tester as recited in claim 1, further comprising: and the unlocking button is used for releasing the simulated induced voltage signal or the voltage signal of the vehicle-mounted sensor sent by the induced voltage simulator.

8. The locomotive anti-crash soil-shifting device tester as recited in claim 1, further comprising:

and the output interface is used for outputting the trigger pulse voltage to LKJ locomotive monitoring equipment.

9. The locomotive anti-crash soil-shifting device tester of claim 7, further comprising: the sensor interface is used for connecting a receiving sensor of the locomotive anti-collision soil-guard device to be detected;

and the resistance meter is used for measuring the resistance value of the receiving sensor.

10. The locomotive soil guard device tester as claimed in any one of claims 1 to 9,

the signal detector is a voltage comparator and is used for comparing whether the trigger pulse voltage reaches a preset threshold value when detecting the trigger pulse voltage.

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