CN209707610U - The test equipment that a kind of pair of track traffic signal control equipment is tested - Google Patents
The test equipment that a kind of pair of track traffic signal control equipment is tested Download PDFInfo
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- CN209707610U CN209707610U CN201822275648.6U CN201822275648U CN209707610U CN 209707610 U CN209707610 U CN 209707610U CN 201822275648 U CN201822275648 U CN 201822275648U CN 209707610 U CN209707610 U CN 209707610U
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Abstract
The embodiments of the present invention disclose the test equipment that a kind of pair of track traffic signal control equipment is tested, including the test module for being tested the test signal acquired from equipment under test, the light-coupled isolation module and input interface being connect with test module, and the optical signal module and output interface that are connect with test module.The on-off that input interface and test module are controlled by light-coupled isolation module controls the on-off of test module and output interface by optical signal module.It is electric insulating state between equipment under test and test equipment when switch disconnects since light-coupled isolation module and optical signal module are the switch controlled by optical signal, realizes dry contact connection.The connection type structure of this dry contact by light-coupled isolation module and optical signal module is simple, and due to enabling to realize electrical isolation between equipment under test and test equipment, avoids influence of the equipment under test electric signal to test equipment, improve safety.
Description
Technical field
The utility model embodiment is related to train apparatus technical field of performance test, more particularly, to a kind of pair of rail traffic
The test equipment that signal control equipment is tested.
Background technique
With the rapid development of embedded system and chip technology, track traffic signal equipment tends to miniaturization and height collects
Cheng Hua, but the test equipment that is mated with need to meet acquisition to a large amount of various forms of digital signals and analog signal and
The demand of driving.Interface relatively common in signal system is to be designed to dry node (passive switch) using elements such as signals at present
Mode carry out the acquisition and driving of signaling switch amount, such mode has opening and closing of two states, and two nodes do not have
Polarized can be interchanged, and this design method can effectively be isolated power-supply system mutual between distinct device, make
Signal acquisition and driving not will receive the influence of electric voltage exception interference signal of public power or ground terminal etc., be a kind of safe and reliable
Signal drive acquisition mode.
The mode of rail traffic signal system especially Vehicle Controller majority dry contact is driven and is acquired.Separately
Outside, the analog signals such as pulse signal, current signal, PWM can be also related in rail traffic signal system to be controlled, this is just
It needs test equipment while also there is the ability for being acquired and driving with such signal.At present generally using support pci interface
The analog signals control such as pulse signal, current signal, PWM expansion board clamping and data acquisition Driver Card etc. be integrated into platform
In formula computer, the driving acquisition mode of such mode is the wet contact output of active switch.
However, on the one hand because the board and analog quantity spread board of driving acquisition are wet contact output, therefore need external
The device of a set of signal condition is converted into dry contact output, also needs integrated multiple analog amount signal Control card, so that system is multiple
Miscellaneous huge, software development workload estimate is big, and device is inconvenient to carry to carrying out test job on field vehicle.On the other hand, mesh
The preceding method detected to equipment under test is that the signal for the output switching value that will be devices under is introduced directly into, and will be tested
Equipment is connected with the mode of selection altogether is devices under, although this mode simply easily connects, if event occurs in analog input card
Barrier or ground wire generate crosstalk information, can not only damage the function of signal acquiring board itself, while may also be to being devices under
It damages.
In actual application, inventor has found that existing test equipment needs are external and wet node is converted to dry node
Circuit after connected again with equipment under test so that the circuit structure for test is complicated, and signal will be tested in existing test
It is introduced directly into test equipment, test equipment is easy that failure is influenced or caused by equipment under test electric signal, and safety is lower.
Utility model content
The utility model will solve existing test equipment and need after the external circuit that wet node is converted to dry node again
It is connected with equipment under test, so that the circuit structure for test is complicated, and test signal is introduced directly into survey in existing test
Equipment is tried, test equipment is easy that failure, the lower problem of safety are influenced or caused by equipment under test electric signal.
Against the above technical problems, the embodiments of the present invention provide a kind of pair of track traffic signal control equipment into
The test equipment of row test, including test module, input interface, output interface, light-coupled isolation module and optical signal module；
The light-coupled isolation module is arranged between the input interface and the test module, for the input to be connected
Interface and the test module, with the test signal by the input interface from the acquisition of the equipment under test of connection for test；
The optical signal module is arranged between the output interface and the test module, connects for the output to be connected
Mouth and the test module, are output to the equipment under test by the output interface for the driving signal of generation；
The test module obtains the survey tested the equipment under test for testing the test signal
Test result.
The embodiments of the present invention provide the test equipment that a kind of pair of track traffic signal control equipment is tested,
Including the test module for being tested the test signal acquired from equipment under test, the light-coupled isolation being connect with test module
Module and input interface, and the optical signal module and output interface that are connect with test module.Test equipment passes through output interface
To equipment under test output drive signal, by input interface from equipment under test collecting test signal.Pass through light-coupled isolation module control
The on-off of input interface processed and test module controls the on-off of test module and output interface by optical signal module.Due to light
Coupling isolation module and optical signal module are the switch controlled by optical signal, when switch disconnects between equipment under test and test equipment
For electric insulating state, dry contact connection is realized.The connection of this dry contact by light-coupled isolation module and optical signal module
Mode structure is simple, and due to enabling to realize electrical isolation between equipment under test and test equipment, avoids equipment under test electricity
Influence of the signal to test equipment, improves safety.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the survey that a kind of pair of track traffic signal control equipment that the utility model one embodiment provides is tested
Try the structural schematic diagram of equipment；
Fig. 2 is more specifically carrying out to track traffic signal control equipment for another embodiment of the utility model offer
The test equipment structural schematic diagram of test；
Fig. 3 is the partial circuit schematic diagram for the signal acquiring board that another embodiment of the utility model provides；
Fig. 4 is the part circuit structure schematic diagram for the signal driving plate that another embodiment of the utility model provides；
Fig. 5 is the direct electrical connection signal of the test equipment that another embodiment of the utility model provides and equipment under test
Figure；
Fig. 6 is the electrical isolation principle signal for the signal I/O mode that another embodiment of the utility model provides
Figure.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Fig. 1 is the structure for the test equipment that a kind of pair of track traffic signal control equipment provided in this embodiment is tested
Schematic diagram, referring to Fig. 1, which includes test module 101, input interface 102, output interface 103, light-coupled isolation module 104
With optical signal module 105；
The light-coupled isolation module 104 is arranged between the input interface 102 and the test module 101, for leading
Lead to the input interface 102 and the test module 101, to adopt by the input interface 102 from the equipment under test 106 of connection
Test signal of the collection for test；
The optical signal module 105 is arranged between the output interface 103 and the test module 101, for being connected
The driving signal of generation is output to by the output interface 103 and the test module 101 by the output interface 103
The equipment under test 106；
The test module 101 obtains surveying the equipment under test 106 for testing the test signal
The test result of examination.
Test equipment provided in this embodiment is used to test the signal control equipment in rail traffic, rail traffic
In signal control equipment include mobile unit signal control equipment and ground installation signal control equipment.For example, vehicle-mounted
The signal control equipment of equipment includes signal the control equipment, time interval between to trains system ATP of Vehicle Controller VOBC equipment
Signal controls equipment and the signal control equipment of train automatic controlling system ATO etc..The signal of ground installation controls equipment
The signal control equipment of zone controller ZC, the signal of automatic train monitor ATS control the letter of equipment and interlock system CI
Number control equipment.During the test, one side test equipment generates the driving signal driven to equipment under test, another party
Face acquires the signal that equipment under test generates and tests as signal, 101 pairs of test signals of test module are tested, obtained test
It as a result is the test result tested the equipment under test.Driving signal is output to equipment under test by output interface 103
106, test signal is input to test module 101 from equipment under test 106 by input interface 102.
In test equipment provided in this embodiment, between input interface 102 and test module 101 be provided with optocoupler every
From module 104, light-coupled isolation module 104 is used as optoelectronic switch, by the on-off of optical signal control light-coupled isolation module 104, in light
When coupling isolation module 104 disconnects input interface 102 and test module 101, equipment under test and test equipment electrical isolation, there is no electricity
Signal transmission.On the other hand, optical signal module 105, optical signal mould are provided between output interface 103 and test module 101
Block 105 is used as optoelectronic switch, by the on-off of optical signal control optical signal module 105, disconnects output interface in optical signal module 105
103 and when test module 101, electric signal transmission is also not present in equipment under test and test equipment electrical isolation.As it can be seen that passing through optocoupler
The setting of isolation module 104 and optical signal module 105 ensure that equipment safety, and this connection type is relatively simple, so that surveying
It is smaller to try equipment volume, is convenient for carrying.
Present embodiments provide the test equipment that a kind of pair of track traffic signal control equipment is tested, including for pair
The test module that the test signal acquired from equipment under test is tested, the light-coupled isolation module and input being connect with test module
Interface, and the optical signal module and output interface that are connect with test module.Test equipment passes through output interface to equipment under test
Output drive signal, by input interface from equipment under test collecting test signal.Input interface is controlled by light-coupled isolation module
With the on-off of test module, the on-off of test module and output interface is controlled by optical signal module.Due to light-coupled isolation module
It is the switch controlled by optical signal with optical signal module, is electrical isolation shape between equipment under test and test equipment when switch disconnects
State realizes dry contact connection.The connection type structure letter of this dry contact by light-coupled isolation module and optical signal module
It is single, and due to enabling to realize electrical isolation between equipment under test and test equipment, equipment under test electric signal is avoided to test
The influence of equipment, improves safety.
It further, on the basis of the above embodiments, further include being arranged in the input interface and the test module
Between signal acquiring board and the signal driving plate that is arranged between the output interface and the test module；
The light-coupled isolation module is integrated on the signal acquiring board, and the input is connected in the light-coupled isolation module
After interface and the test module, the signal acquiring board acquires the test from the equipment under test by the input interface
Signal；
The optical signal module is integrated in the signal driving plate, and the output interface is connected in the optical signal module
After the test module, the driving signal of generation is output to described tested by the signal driving plate by the output interface
Equipment.
In order to improve the integrated level of test equipment, simplify the hardware configuration of test equipment, the present embodiment is by light-coupled isolation mould
Block is integrated on signal acquiring board, and optical signal module is integrated in signal driving plate.
It further, further include motherboard, the motherboard is for light-coupled isolation module described in input control and light letter
The control signal of number module on-off.
Further, motherboard STM32.
STM32 small volume, controls test process compared to by computer, greatly reduces test by motherboard
The volume of equipment, improves integrated level.STM32 is configured and is controlled to signal acquiring board, signal driving plate by parallel bus
System, while can be with acquisition pulse signal, current signal, pwm signal etc..
Fig. 2 is the test equipment provided in this embodiment more specifically tested track traffic signal control equipment
Structural schematic diagram, referring to fig. 2, the test equipment include motherboard, signal driving plate, signal acquiring board and power panel.It is tested
The driving signal exported from the output interface of test equipment is input to tested set by the input interface connection signal driving plate of equipment
Standby, the output interface connection signal collection plate of equipment under test, the test signal that equipment under test is generated passes through the defeated of test equipment
Incoming interface is input to test equipment.In addition, further including the analog interface for being controlled test process, which is connect
Mouth connection motherboard, realizes the control to test process.
Present embodiments provide the test equipment that a kind of pair of track traffic signal control equipment is tested, will by optocoupler every
It is integrated on signal acquiring board from module, optical signal module is integrated in signal driving plate, improve the integrated of test equipment
Degree.
It further, further include filter circuit on the basis of the various embodiments described above；
The filter circuit is connected between the input interface and the light-coupled isolation module, for the test to acquisition
Signal is filtered.
The test equipment that a kind of pair of track traffic signal control equipment is tested is present embodiments provided, filtered electrical is passed through
Road is filtered the test signal of acquisition, eliminates the noise in test signal, improves the accuracy of test result.
It further, further include acquisition switch indicator elment on the basis of the various embodiments described above；
The acquisition switch indicator elment is arranged between the light-coupled isolation module and the test module, in institute
After stating the light-coupled isolation module conducting input interface and the test module, and the test letter is acquired from the equipment under test
The first indication signal is issued during number；
Wherein, first indication signal is used to indicate current from the equipment under test acquisition test signal.
Acquisition switch indicator elment can be indicator light, and the light on and off by indicator light or the color by indicator light issue
Different indication signals.For example, indicating current from equipment under test collecting test signal when indicator light is bright.
It further, further include driving switch indicator elment on the basis of the various embodiments described above；
The driving switch indicator elment is arranged between the output interface and the optical signal module, for described
After the output interface and the test module is connected in optical signal module, and the driving signal is exported to the equipment under test
The second indication signal is issued in the process；
Wherein, second indication signal is used to indicate current to the equipment under test output driving signal.
Similarly, driving switch indicator elment is also possible to indicate lamp, by the light on and off of indicator light or passes through indicator light
Color issues different indication signals.For example, indicating current when indicator light and acquiring input driving letter to equipment under test
Number.
The test equipment that a kind of pair of track traffic signal control equipment is tested is present embodiments provided, is opened by acquisition
Closing indicator elment and driving switch indicator elment indicates the working condition of test equipment, so that during using test equipment,
Current state can be understood in time, by indicator elment convenient for noting abnormalities.
Further, on the basis of the various embodiments described above, the test equipment includes connecting with the test module
Multiplexed signal sampling unit and the multiple signals driving unit being connect with the test module；
It include the input interface and the light-coupled isolation module, the light-coupled isolation mould per signal acquisition unit all the way
Block is arranged between the input interface and the test module；
It include the output interface and the optical signal module per signal driving unit all the way, the optical signal module is set
It sets between the output interface and the test module.
In order to enable test equipment can simultaneously test each equipment under test, in test equipment provided in this embodiment
It is upper to be provided with multiplexed signal sampling unit and signal driving unit.During the test, respectively by corresponding one group of signal acquisition
Unit and signal driving unit connect the test that can be realized to the equipment under test with a certain equipment under test.
The test equipment that a kind of pair of track traffic signal control equipment is tested is present embodiments provided, is believed by multichannel
Number acquisition unit and signal driving unit test test equipment to how each equipment under test simultaneously, improve test
Efficiency.
Further, on the basis of the various embodiments described above, the light-coupled isolation module includes at least one two pole of photoelectricity
Pipe.
Fig. 3 is the partial circuit schematic diagram of signal acquiring board provided in this embodiment, referring to Fig. 3, the signal acquiring board packet
Two paths of signals acquisition unit is included, this two paths of signals acquisition unit will test signal input by input interface IN1 and IN2 respectively
To test equipment.By taking this road signal acquisition unit where IN1 as an example, light-coupled isolation module is realized using photoelectric device U1, U1
On-off controlled by the circuit being made of D1, D2 and D4, the letter that is controlled the on-off of U1 is inputted by INPUT1
Number the on-off of diode switch is controlled, it since U1 is arranged between test module and input interface IN1, can be to test
Module and the on-off of input interface are controlled.
Further, on the basis of the various embodiments described above, the optical signal module includes at least one optical relay.
Fig. 4 is the part circuit structure schematic diagram of signal driving plate provided in this embodiment, and referring to fig. 4, U1 is light relay
Device, when opening U1, the phototransistor in U1 shines, and the sensor devices of phototransistor opposite side generate electric current, U1 conducting.As general
When IN1 is grounded, U is opened, and otherwise, U1 is closed.After U1 is opened, electric signal, OUT+ are generated between sensor devices 7 and sensor devices 8
Voltage is generated between OUT-.OUT+ connects equipment under test with OUT-, can input electricity to equipment under test by OUT+ and OUT-
Signal controls the voltage between OUT+ and OUT- using the principle, can realize to equipment under test and input driving letter
Number.
The test equipment that a kind of pair of track traffic signal control equipment is tested is present embodiments provided, photoelectricity two is passed through
Pole pipe realizes the control to test module and input interface on-off as light-coupled isolation module, is realized by optical signal module to survey
The control of die trial block and output interface on-off, implementation method are simple.
It further, further include power panel on the basis of the various embodiments described above；
The power panel is used for as the test module, the signal acquiring board and signal driving plate power supply.
It further, further include backboard on the basis of the various embodiments described above；
The test module, the signal acquiring board, the signal driving plate and the power panel are integrated in the back
On plate.
Present embodiments provide the test equipment that a kind of pair of track traffic signal control equipment is tested, power panel conduct
Power supply source ensure that the function of signal transmission interaction is played in the normal operation of test equipment, the existing interconnection to each board of backboard.
On the whole, switch will be arranged in test equipment provided in this embodiment between test equipment and equipment under test, lead to
The control realization test equipment to switch and the electric isolution between equipment under test are crossed, guarantees equipment safety.For example, Fig. 5 is this reality
The test equipment of example offer and the direct electrical connection schematic diagram of equipment under test are applied, Fig. 6 is signal provided in this embodiment input
The electrical isolation schematic illustration of the way of output.Test equipment on-off model is directly input to test equipment in Fig. 5, is tested
After cannot be electrically insulated in time, the electric signal between two equipment influences each other, it is possible to damage to equipment.Figure
Relay is set between equipment under test and test equipment in 6, when the coil of equipment under test On-off signal to relay, line
Circle is powered, and closing the switch in relay, test equipment is started to work.When equipment under test no longer output signal, coil blackout,
Switch is opened, test equipment power-off.The principle of comparison diagram 5 and Fig. 6 between equipment under test and test equipment it is found that by being arranged
Control switch can be realized the electrical isolation of equipment under test and test equipment, guarantee equipment safety.Certainly, it is arranged in practice tested
What the switch between equipment and test equipment was also possible to control otherwise, for example, leading to described in above-described embodiment
The control signal for crossing motherboard is controlled.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the embodiments of the present invention, and
It is non-that it is limited；Although the embodiments of the present invention are described in detail referring to foregoing embodiments, this field
Those of ordinary skill is it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments or right
Some or all of the technical features are equivalently replaced；And these are modified or replaceed, and do not make corresponding technical solution
Essence is detached from the range of each embodiment technical solution of the embodiments of the present invention.
Claims (10)
1. the test equipment that a kind of pair of track traffic signal control equipment is tested, which is characterized in that including test module, defeated
Incoming interface, output interface, light-coupled isolation module and optical signal module；
The light-coupled isolation module is arranged between the input interface and the test module, for the input interface to be connected
With the test module, with by the input interface from the equipment under test of connection acquisition for test test signal；
The optical signal module is arranged between the output interface and the test module, for be connected the output interface and
The driving signal of generation is output to the equipment under test by the output interface by the test module；
The test module obtains the test knot tested the equipment under test for testing the test signal
Fruit.
2. test equipment according to claim 1, which is characterized in that further include being arranged in the input interface and the survey
Signal acquiring board between die trial block and the signal driving plate being arranged between the output interface and the test module；
The light-coupled isolation module is integrated on the signal acquiring board, and the input interface is connected in the light-coupled isolation module
After the test module, the signal acquiring board acquires the test letter from the equipment under test by the input interface
Number；
The optical signal module is integrated in the signal driving plate, and the output interface and institute is connected in the optical signal module
After stating test module, the driving signal of generation is output to described be tested by the output interface and set by the signal driving plate
It is standby.
3. test equipment according to claim 1, which is characterized in that further include filter circuit；
The filter circuit is connected between the input interface and the light-coupled isolation module, for the test signal to acquisition
It is filtered.
4. test equipment according to claim 1, which is characterized in that further include acquisition switch indicator elment；
The acquisition switch indicator elment is arranged between the light-coupled isolation module and the test module, in the light
After the input interface and the test module is connected in coupling isolation module, and the test signal is acquired from the equipment under test
The first indication signal is issued in the process；
Wherein, first indication signal is used to indicate current from the equipment under test acquisition test signal.
5. test equipment according to claim 1, which is characterized in that further include driving switch indicator elment；
The driving switch indicator elment is arranged between the output interface and the optical signal module, for believing in the light
After the output interface and the test module is connected in number module, and export to the equipment under test process of the driving signal
The second indication signal of middle sending；
Wherein, second indication signal is used to indicate current to the equipment under test output driving signal.
6. test equipment according to claim 1, which is characterized in that the test equipment includes connecting with the test module
The multiplexed signal sampling unit connect and the multiple signals driving unit being connect with the test module；
It include the input interface and the light-coupled isolation module per signal acquisition unit all the way, the light-coupled isolation module is set
It sets between the input interface and the test module；
It include the output interface and the optical signal module per signal driving unit all the way, the optical signal module setting exists
Between the output interface and the test module.
7. test equipment according to claim 1, which is characterized in that the light-coupled isolation module includes at least one photoelectricity
Diode.
8. test equipment according to claim 1, which is characterized in that the optical signal module includes at least one light relay
Device.
9. test equipment according to claim 2, which is characterized in that further include power panel；
The power panel is used for as the test module, the signal acquiring board and signal driving plate power supply.
10. test equipment according to claim 9, which is characterized in that further include backboard；
The test module, the signal acquiring board, the signal driving plate and the power panel are integrated on the backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992619A (en) * | 2021-02-07 | 2021-06-18 | 青岛博宁福田智能交通科技发展有限公司 | Emergency button switch interface and subway gate |
-
2018
- 2018-12-29 CN CN201822275648.6U patent/CN209707610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992619A (en) * | 2021-02-07 | 2021-06-18 | 青岛博宁福田智能交通科技发展有限公司 | Emergency button switch interface and subway gate |
| CN112992619B (en) * | 2021-02-07 | 2022-06-03 | 青岛博宁福田智能交通科技发展有限公司 | Emergency button switch interface and subway floodgate machine |
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Effective date of registration: 20220228 Address after: 430000 No. 1, Chuangxin Third Road, QianChuan street, Huangpi District, Wuhan City, Hubei Province Patentee after: Wuhan traffic control technology Co.,Ltd. Address before: No.2 and No.3 building, Beijing headquarters international, No.6 Haiying Road, science and Technology Park, Fengtai District, Beijing 100070 Patentee before: TRAFFIC CONTROL TECHNOLOGY Co.,Ltd. |