CN204993362U - CBTC wireless device comprehensive tester - Google Patents
CBTC wireless device comprehensive tester Download PDFInfo
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- CN204993362U CN204993362U CN201520636856.8U CN201520636856U CN204993362U CN 204993362 U CN204993362 U CN 204993362U CN 201520636856 U CN201520636856 U CN 201520636856U CN 204993362 U CN204993362 U CN 204993362U
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Abstract
The utility model relates to a CBTC wireless device comprehensive tester, including test interface, internal interface, be used for simulating on -vehicle wireless device's on -vehicle environment subassembly and be used for simulating the other wireless device's of rail the other environment subassembly of rail, on -vehicle wireless device that the both ends of the other environment subassembly of rail passed test interface and internal interface respectively and were surveyed CBTC is connected and constitutes the test access, the both ends of the on -vehicle environment subassembly rail side wireless device through internal interface and test interface and quilt survey CBTC respectively are connected and are constituted the test access. Compared with the prior art, the utility model discloses in the other environment subassembly of on -vehicle environment subassembly and rail use real radio communication core facility array relevant test environment, the at utmost simulation is on -the -spot actual, promotes the validity of test result, can realize the redundant test of AB double - circuit, the compound test of car / ground wireless device, wired / wireless comprehensive test etc. Simultaneously, has greatly improved efficiency of software testing.
Description
Technical field
The utility model relates to CBTC field tests, especially relates to a kind of CBTC wireless device comprehensive tester.
Background technology
In recent years, urban track traffic (containing subway and light rail) is large by means of its capacity, speed is fast, energy consumption is low, pollute less, disturb the features such as little safely, on schedule and by other transportation conditions, has become the main instrument alleviating urban traffic pressure.Train automatic controlling system, as the most crucial safety control system of track traffic, is the operation ensureing rail vehicle, has played huge effect.Along with the develop rapidly of electronic technology and information technology, train Ore-controlling Role (CBTC) based on communication has become the prevailing model of train automatic controlling system, win bit rate straight line rises, nucleus equipment-the in-vehicle wireless device of its secure communication and trackside wireless device volume production demand and on-the-spot applicating maintenance demand also progressively strengthen, comparatively speaking, complete machine integration testing mode after test mode many employings on-vehicle host single-deck test of dispatching from the factory of equipment supplier, do not carry out wireless device unit test, can not effective location wireless device fault, even if there is part producer to take unit testing, its peripheral environment also adopts virtual host computer mostly, can not simulated field vehicle-mounted/the practical communication environment of trackside wireless device, also the fast reading and writing of same locomotive/integrated test of ground wireless device and AP cannot be accomplished.The means of testing of engineering integrator is more extensive, test mode mostly is engineering truck and carries on-vehicle host wireless test or the mode of actual measurement of shunting, equipment is relatively heavy and testing cost is higher, convenient test request can not be met, and the switch test of wired connection/wireless space two kinds of modes, the actual needs of quick position fault cannot be met.
Utility model content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and a kind of CBTC wireless device comprehensive tester is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of CBTC wireless device comprehensive tester, comprise test interface, internal interface, for simulating the vehicle environment assembly of in-vehicle wireless device and the trackside environment components for simulating trackside wireless device, the two ends of described trackside environment components to be connected with the in-vehicle wireless device of tested CBTC respectively by test interface and internal interface and to form test access, and the two ends of described vehicle environment assembly are connected and form test access with test interface with the trackside wireless device of tested CBTC respectively by internal interface.
Described internal interface comprises interconnective power divider and the first adjustable attenuator, and described first adjustable attenuator is connected with trackside environment components, and described power divider is connected with in-vehicle wireless device, trackside wireless device and vehicle environment assembly respectively.
The filtration module wired connection of described power divider and in-vehicle wireless device, and by testing the vehicle-mounted short Yagi antenna wireless connections of long Yagi antenna and in-vehicle wireless device.
Described power divider by test interface and trackside wireless device wired connection, and passes through the long Yagi antenna wireless connections of trackside of the short Yagi antenna of test and trackside wireless device.
The second adjustable attenuator is provided with between described power divider and test interface.
Described trackside environment components comprises interconnective trackside AP and radio-frequency filter, and described trackside AP is connected with test interface, and described radio-frequency filter is connected with the first adjustable attenuator.
Described vehicle environment assembly comprises vehicle-mounted AP, and the switch module be all connected with vehicle-mounted AP and filtration module, and described switch module is connected with test interface, and described filtration module is connected with power divider.
Described test interface comprises read-write interface, the terrestrial interface be connected with trackside wireless device and trackside environment components respectively, the vehicle-mounted interface that is connected with in-vehicle wireless device and vehicle environment assembly respectively, and the radio frequency interface be connected with the second adjustable attenuator and trackside wireless device respectively.
Described terrestrial interface and vehicle-mounted interface comprise two RJ45 network interfaces respectively, and described radio frequency interface comprises two N-type heads, and described read-write interface comprises two DB9 interfaces.
Compared with prior art, the utility model has the following advantages:
1) vehicle environment assembly and trackside environment components use real radio communication nucleus equipment, simulate in-vehicle wireless device and trackside wireless device respectively, the dependence test environment of such arrangement, farthest simulated field is actual, effectively improves the validity of test result.
2) in-vehicle wireless device, trackside wireless device can realize same machine composite test, improve power of test.
3) wireless space and wired connection two kinds of test modes are provided simultaneously, shorten the fault location time of dispatch from the factory unit testing and on-the-spot test largely.
4) the two convenient switching of test access of A/B is provided, and the AP inner parameter read-write capability (console mouth) of brief and practical is provided.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the layered arrangement schematic diagram in rack;
Fig. 3 is the schematic layout pattern of test interface;
Fig. 4 is communication network schematic diagram;
Wherein: 1, test interface, 2, internal interface, 3, vehicle environment assembly, 4, trackside environment components, 5, in-vehicle wireless device, 6, trackside wireless device, 7, test PC, 8, test long Yagi antenna, 9, test short Yagi antenna, 11, terrestrial interface, 12, vehicle-mounted interface, 13, radio frequency interface, 14, read-write interface, 21, first adjustable attenuator, 22, power divider, 23, second adjustable attenuator, 31, vehicle-mounted AP, 32, switch module, 33, filtration module, 41, trackside AP, 42, radio-frequency filter, 51, vehicle-mounted short Yagi antenna, 61, the long Yagi antenna of trackside.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
A kind of CBTC wireless device comprehensive tester, for dispatch from the factory test and the engineering site equipment Inspection application of existing communication-based train control system wireless device (containing trackside wireless device 6 and in-vehicle wireless device 5), as shown in Figure 1, comprise power module, test interface 1, internal interface 2, for simulating the vehicle environment assembly 3 of in-vehicle wireless device and the trackside environment components 4 for simulating trackside wireless device, the two ends of trackside environment components 4 are connected and form test access with internal interface 2 with the in-vehicle wireless device 5 of tested CBTC respectively by test interface 1, the two ends of vehicle environment assembly 3 are connected and form test access with test interface 1 with the trackside wireless device 6 of tested CBTC respectively by internal interface 2.In addition test interface 1 goes back connecting test PC7.
Power module, test interface 1, internal interface 2, vehicle environment assembly 3 and the layered arrangement of trackside environment components 4 in rack are as shown in Figure 2.Power module is built in instrument, comprises 220V access part, air switch, total power switch, 110V power module of voltage regulation (test interface arranges switch), 48V power module of voltage regulation (test interface arranges switch).Wherein total power switch is PDU type standard 1U height 6 sockets, and effective grounding, add the convenience in test process.
In-vehicle wireless device 5 comprises vehicle-mounted AP, vehicle-mounted short Yagi antenna 51, and the switch module be all connected with vehicle-mounted AP31 and filtration module, its switch module 32 is tested by test interface 1 and is connected with PC7, filtration module is connected with vehicle-mounted short Yagi antenna 51, trackside wireless device 6 comprises trackside AP, the long Yagi antenna 61 of trackside, and the optical-electrical converter be all connected with trackside AP41 and antennal interface, optical-electrical converter is connected with PC7 with test, and antennal interface is connected with the long Yagi antenna 61 of trackside.
In order to simulate more truly, vehicle environment assembly 3 also comprises vehicle-mounted AP31, and the switch module 32 be all connected with vehicle-mounted AP31 and filtration module 33, in addition trackside environment components 4 comprises by the interconnective trackside AP41 of RF repeating cable and radio-frequency filter 42, and radio-frequency filter 42 is specially two-way radio frequency filter.
Internal interface 2 is built in instrument, comprise 0-120dB first adjustable attenuator 21,800-2500MHz universal power distributor 22,0-120dB second adjustable attenuator 23, first adjustable attenuator 21, power divider 22 be connected successively with the second adjustable attenuator 23.
As shown in Figure 3, test interface 1 comprises read-write interface 14, the terrestrial interface 11 be connected with trackside wireless device 6 and trackside environment components 4 respectively, the vehicle-mounted interface 12 that is connected with in-vehicle wireless device 5 and vehicle environment assembly 3 respectively, and the radio frequency interface 13 be connected with the antennal interface of the second adjustable attenuator 23 and trackside wireless device 6 respectively.Terrestrial interface 11 and vehicle-mounted interface 12 are two-way standard RJ45 network interface, and radio frequency interface 13 is two-way standard N-type head, and read-write interface 14 is console two-way DB9 interface, and concrete terrestrial interface 11 and vehicle-mounted interface 12 are also for connecting test PC7.
Comprehensive tester connects signal as Fig. 1.Filtration module in vehicle environment assembly 3 is connected with a connector of power divider 22 by RF repeating cable, and then be connected with the short Yagi line 9 of test, build wireless vehicle mounted environment, form the test access of the other wireless device of wireless space test rail with trackside wireless device 6 and the long Yagi antenna 61 of attached trackside thereof.Simultaneously, be connected with the second adjustable attenuator 23 by power divider 22, and the radio frequency interface 13 of test interface is fixed on by RF repeating cable, form wired vehicle environment, be connected by the antennal interface of external radio frequency cable with trackside wireless device 6, form the test access of wired connecting test trackside wireless device 6.Switch module in vehicle environment assembly 3 then has test to connect with PC7 by connecting vehicle-mounted interface 12.
A SMA interface of the radio-frequency filter 42 in trackside environment components 4 is connected with the first adjustable attenuator 21, and then be connected to an interface of power divider 22, build wired trackside environment, and then be connected with the filtration module of RF repeating line with in-vehicle wireless device 5 by power divider 22, form the path of limited connecting test in-vehicle wireless device 5.Simultaneously, trackside AP41 in trackside environment components 4 is also connected with the long Yagi antenna 8 of test with power divider 22 by radio-frequency filter 42, first adjustable attenuator 21 successively, build wireless trackside environment, form with in-vehicle wireless device 5 and attached short Yagi antenna thereof the test access that wireless space tests in-vehicle wireless device 5.In addition, the trackside AP in trackside environment components 4 is also connected with PC7 with test by terrestrial interface 11, is also connected with read-write interface 14 in addition.
Actual test process is as follows:
Measurand is trackside wireless device 6.Need before test to confirm:
1) trackside wireless device 6 normally accesses independent current source;
2) test PC7 has been provided with the correct IP address of corresponding engineering;
Dispatch from the factory in test, only need to take wired connection to test.With the corresponding direct-connected trackside wireless device 6 of two RF repeating lines and test interface 1, open the switch of tester master switch, 110V switch and vehicle environment assembly 3 power panel, viewing lamp situation, after its normal work light is bright, by two test PC7 respectively by the network interface A of vehicle-mounted interface 12 of accessory netting twine connecting test the interface 1 and network interface A of trackside wireless device 6, two test PC7 carry out Ping with the other side respectively and communicate, and could connect smoothly after may needing to wait for a few minutes.After A mouth is completed, test PC is connected the network interface B of vehicle-mounted the interface 12 and network interface B of trackside wireless device 6 respectively by netting twine, proceeds successively.During wireless space test, except not needing the docking trackside external radio frequency mouth of wireless device 6 and tester test interface 1, other processes are with wired test.As wanted quick position on-the-spot trackside wireless device 6 fault, only needing to adopt wireless and wired two kinds of modes, just can orient internal fault and the antenna failure of trackside wireless device 6.Communication network signal is as Fig. 4.
Measurand is in-vehicle wireless device 5.Need before test to confirm:
1) in-vehicle wireless device has accessed its independent current source;
2) 2 built-in M12 netting twines (connecting switch module A and B of in-vehicle wireless device 5 respectively), 2 radio frequency lines (connecting two interfaces of filtration module in in-vehicle wireless device 5 respectively) all connect correct.
3) the correct IP address that PC has been provided with corresponding engineering is tested.
After above all confirmations, open 48V switch, to observe in trackside environment components vehicle-mounted AP indicator light situation in trackside AP41 and in-vehicle wireless device 5, after its normal work light is bright, two tests are connected the A of the terrestrial interface 11 and network interface A of vehicle-mounted interface with PC7 respectively by accessory netting twine, two test PC7 carry out Ping with the other side respectively and communicate, and could connect smoothly after may needing to wait for a few minutes.After A mouth is completed, test is connected the network interface B of the terrestrial interface 11 and network interface B of vehicle-mounted interface 12 with PC7 respectively by netting twine, proceeds successively.As wanted quick position in-vehicle wireless device 5 fault, only needing to adopt wireless and wired two kinds of modes, just can orient AP fault and the antenna failure of in-vehicle wireless device 5.
Comprise with machine accessory: 2 1.5 meters test netting twines, two female DB9 p-wires of 1 meter of direct-connected revolution, 1.5 meters of microUSB conversion lines.
Claims (9)
1. a CBTC wireless device comprehensive tester, it is characterized in that, comprise test interface, internal interface, for simulating the vehicle environment assembly of in-vehicle wireless device and the trackside environment components for simulating trackside wireless device, the two ends of described trackside environment components to be connected with the in-vehicle wireless device of tested CBTC respectively by test interface and internal interface and to form test access, and the two ends of described vehicle environment assembly are connected and form test access with test interface with the trackside wireless device of tested CBTC respectively by internal interface.
2. a kind of CBTC wireless device comprehensive tester according to claim 1, it is characterized in that, described internal interface comprises interconnective power divider and the first adjustable attenuator, described first adjustable attenuator is connected with trackside environment components, and described power divider is connected with in-vehicle wireless device, trackside wireless device and vehicle environment assembly respectively.
3. a kind of CBTC wireless device comprehensive tester according to claim 2, it is characterized in that, the filtration module wired connection of described power divider and in-vehicle wireless device, and by testing the vehicle-mounted short Yagi antenna wireless connections of long Yagi antenna and in-vehicle wireless device.
4. a kind of CBTC wireless device comprehensive tester according to claim 2, it is characterized in that, described power divider by test interface and trackside wireless device wired connection, and passes through the long Yagi antenna wireless connections of trackside of the short Yagi antenna of test and trackside wireless device.
5. a kind of CBTC wireless device comprehensive tester according to claim 4, is characterized in that, be provided with the second adjustable attenuator between described power divider and test interface.
6. a kind of CBTC wireless device comprehensive tester according to claim 2, it is characterized in that, described trackside environment components comprises interconnective trackside AP and radio-frequency filter, and described trackside AP is connected with test interface, and described radio-frequency filter is connected with the first adjustable attenuator.
7. a kind of CBTC wireless device comprehensive tester according to claim 2, it is characterized in that, described vehicle environment assembly comprises vehicle-mounted AP, and the switch module be all connected with vehicle-mounted AP and filtration module, described switch module is connected with test interface, and described filtration module is connected with power divider.
8. a kind of CBTC wireless device comprehensive tester according to claim 4, it is characterized in that, described test interface comprises read-write interface, the terrestrial interface be connected with trackside wireless device and trackside environment components respectively, the vehicle-mounted interface that is connected with in-vehicle wireless device and vehicle environment assembly respectively, and the radio frequency interface be connected with the second adjustable attenuator and trackside wireless device respectively.
9. a kind of CBTC wireless device comprehensive tester according to claim 8, it is characterized in that, described terrestrial interface and vehicle-mounted interface comprise two RJ45 network interfaces respectively, and described radio frequency interface comprises two N-type heads, and described read-write interface comprises two DB9 interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636856.8U CN204993362U (en) | 2015-08-21 | 2015-08-21 | CBTC wireless device comprehensive tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636856.8U CN204993362U (en) | 2015-08-21 | 2015-08-21 | CBTC wireless device comprehensive tester |
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| CN204993362U true CN204993362U (en) | 2016-01-20 |
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| CN201520636856.8U Active CN204993362U (en) | 2015-08-21 | 2015-08-21 | CBTC wireless device comprehensive tester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656594A (en) * | 2016-12-19 | 2017-05-10 | 交控科技股份有限公司 | Cross-line communication simulation method for trackside device in interconnection system |
| CN110351685A (en) * | 2019-07-12 | 2019-10-18 | 湖南中车时代通信信号有限公司 | A kind of virtual road measuring method of rail traffic cordless communication network and system |
| US11713065B2 (en) | 2019-10-17 | 2023-08-01 | Thales Canada Inc. | Method for CBTC system migration using autonomy platform |
-
2015
- 2015-08-21 CN CN201520636856.8U patent/CN204993362U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656594A (en) * | 2016-12-19 | 2017-05-10 | 交控科技股份有限公司 | Cross-line communication simulation method for trackside device in interconnection system |
| CN106656594B (en) * | 2016-12-19 | 2019-08-16 | 交控科技股份有限公司 | A kind of cross-line communication simulation method of trackside equipment in the system that interconnects |
| CN110351685A (en) * | 2019-07-12 | 2019-10-18 | 湖南中车时代通信信号有限公司 | A kind of virtual road measuring method of rail traffic cordless communication network and system |
| CN110351685B (en) * | 2019-07-12 | 2022-07-08 | 湖南中车时代通信信号有限公司 | Virtual drive test method and system for rail transit wireless communication network |
| US11713065B2 (en) | 2019-10-17 | 2023-08-01 | Thales Canada Inc. | Method for CBTC system migration using autonomy platform |
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