CN214154491U - Whole machine test system for transponder information receiving unit and antenna - Google Patents
Whole machine test system for transponder information receiving unit and antenna Download PDFInfo
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- CN214154491U CN214154491U CN202022720150.3U CN202022720150U CN214154491U CN 214154491 U CN214154491 U CN 214154491U CN 202022720150 U CN202022720150 U CN 202022720150U CN 214154491 U CN214154491 U CN 214154491U
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Abstract
The utility model relates to a complete machine test system of transponder information receiving element and antenna, including test rack and shield cover, the test rack includes the casing and arranges inside spectral analyser, vector signal generator, oscilloscope and the DC power supply of casing in, vector signal generator is connected with the controller, passive transponder and antenna house in the shield cover, passive transponder and antenna are at a distance of 60 cm. Compared with the prior art, the integrated level is high, the automatic test can be realized, and the operation is simplified.
Description
Technical Field
The utility model belongs to the technical field of transponder information receiving unit and antenna test and specifically relates to a complete machine test system of transponder information receiving unit and antenna is related to.
Background
The transponder information receiving unit BTM is an important component of a train control vehicle-mounted control system, 27.095MHz energy is sent downwards through a BTM antenna to activate a ground transponder (passive transponder), 4.23MHz uplink signals returned by the passive transponder are received and processed to obtain transponder message data, the data are transmitted to train control vehicle-mounted equipment, and the antenna is used for receiving the uplink signals of the passive transponder.
The information receiving unit of the BTM1-YH type transponder adopts a dual-channel redundancy structure, so that the availability of equipment is improved; the demodulation technology of uplink optimization and data real-time decoding are adopted, and the anti-interference capability of the product is improved; a DSP + FPGA heterogeneous two-out-of-two fault-tolerant safety structure is adopted to ensure the safety of the information decoding and transmission process; the multi-level message buffering is adopted, so that the message integrity is guaranteed when the message passes through the responder group at a high speed; CAN support various communication interfaces and communication protocols such as RS-422, CAN, Profibus and the like.
Currently, there is a lack of a system for simultaneously testing the transponder information receiving unit and antenna of model BTM 1-YH.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a complete testing system for transponder information receiving unit and antenna, which overcomes the above-mentioned drawbacks of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the whole machine test system for the transponder information receiving unit and the antenna comprises a test cabinet and a shielding case, wherein the test cabinet comprises a shell, and a spectrum analyzer, a vector signal generator, an oscilloscope and a direct-current power supply which are arranged in the shell, the vector signal generator is connected with a controller, a passive transponder and an antenna cover are arranged in the shielding case, and the distance between the passive transponder and the antenna is 60 cm.
And when the version test and the communication interface test are carried out, the direct current power supply and the controller are respectively connected with the responder information receiving unit.
When the action range is tested, the direct current power supply, the controller and the antenna are respectively connected with the transponder information receiving unit.
When the peak-to-peak value of the energy signal is tested, the direct-current power supply, the controller and the oscilloscope are respectively connected with the responder information receiving unit.
The oscilloscope is connected with a 50 omega resistor, and the 50 omega resistor is connected with the transponder information receiving unit in parallel.
When the uplink signal receiving test is carried out, the direct current power supply, the controller and the signal generator are respectively connected with the responder information receiving unit.
During ripple test, the direct current power supply, the controller and the antenna are respectively connected with the transponder information receiving unit, and the antenna is connected with the spectrum analyzer.
The antenna is connected with a spectrum analyzer through a 20dB attenuator.
The direct current power supply is a 110V direct current power supply.
The bottom of the shell is provided with universal wheels.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the test cabinet comprises a shell, and a spectrum analyzer, a vector signal generator, an oscilloscope and a direct current power supply which are arranged in the shell, wherein the vector signal generator is connected with the controller, the integration level is high, the vector signal generator is connected with the controller, the automatic test can be realized, and the operation is simplified.
(2) The passive transponder and the antenna housing are arranged in the shielding cover, and the shielding cover isolates external interference, so that the test result is more reliable.
(3) The universal wheel is established to the bottom of casing, conveniently removes.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
The embodiment provides a complete machine test system of a transponder information receiving unit and an antenna, as shown in fig. 1, the complete machine test system comprises a test cabinet and a shielding case, the test cabinet comprises a shell, and a spectrum analyzer, a vector signal generator, an oscilloscope and a direct current power supply which are arranged in the shell and connected with a controller, a passive transponder and an antenna cover are arranged in the shielding case, and the distance between the passive transponder and the antenna is 60 cm.
Specifically, the method comprises the following steps:
when the version is tested and the communication interface is tested, the direct current power supply and the controller are respectively connected with the responder information receiving unit; when the action range is tested, the direct current power supply, the controller and the antenna are respectively connected with the transponder information receiving unit; when the peak-to-peak value of the energy signal is tested, the direct-current power supply, the controller and the oscilloscope are respectively connected with the responder information receiving unit; when receiving and testing the uplink signal, the direct current power supply, the controller and the signal generator are respectively connected with the responder information receiving unit; during ripple test, the direct current power supply, the controller, the antenna and the spectrum analyzer are respectively connected with the transponder information receiving unit, and the antenna is connected with the spectrum analyzer.
The oscilloscope is connected with a 50 omega resistor, and the 50 omega resistor is connected with the transponder information receiving unit in parallel; the antenna is connected with the spectrum analyzer through a 20dB attenuator.
The direct current power supply is a 110V direct current power supply; the bottom of the shell is provided with universal wheels; the controller is a PC.
The using method comprises the following steps:
in preparation for connection as shown in fig. 1, a 110V dc power supply is connected to the BTM power interface, and a controller is connected to the BTM network port and serial port. According to the test items, a J3 receiving port of the BTM is respectively connected with an antenna or a signal generator, a J4 transmitting port of the BTM is respectively connected with an antenna or an oscilloscope, and the antenna and the passive transponder are placed in an antenna shielding case at an interval of 60 cm.
1. Version testing
a) Adjusting the direct current power supply to 110V;
b) switching on a direct current power supply;
c) and opening the controller and automatically reading the version number.
2. Range of action test
a) Connecting the antenna with a J4 sending port of the BTM, and turning on a direct current power supply;
b) opening the controller and confirming that the BTM is normal in operation state;
c) the connection between the antenna and the J4 transmitting port of the BTM is disconnected and the antenna is connected to the J3 receiving port of the BTM, the FSK signal on the controller and the message information of the passive transponder are observed, and whether the fluctuation and the abnormality exist or not is checked.
3. Energy signal peak-to-peak testing
a) Connecting a J4 sending port of the BTM to an oscilloscope, and connecting a 50 omega load in parallel;
b) and (4) switching on a direct current power supply, starting a controller to automatically test, and observing whether the waveform and the peak value are correct.
4. Uplink signal reception test
a) Connecting the J3 receiving port of the BTM to the output of the signal generator;
b) and switching on the direct current power supply, turning on the controller to perform automatic test, and controlling the signal generator to generate a signal by the controller to observe whether the signal is correctly received by the BTM.
5. Ripple test
a) Connecting a J4 transmitting port of the BTM with an antenna, wherein the antenna is connected with a spectrum analyzer through a 20DB attenuator;
b) and switching on a direct current power supply, starting a controller to automatically test, and observing whether the frequency spectrum analyzer has ripple interference.
6. Communication interface testing
a) Connecting the serial port of the BTM to a controller;
b) and switching on the direct-current power supply, automatically testing, and checking whether the connection result is normal.
7. Self-test
a) Connecting the net port of the BTM to a controller, and connecting an antenna to the J3 receiving port of the BTM;
b) switching on a direct current power supply, starting a controller for automatic test, and observing whether the lamp position of the BTM panel flickers normally or not;
c) the connection of the receiving port is disconnected J3, and after 15s, whether the controller correctly displays the state of the disconnected antenna is confirmed.
Claims (10)
1. The whole machine test system for the transponder information receiving unit and the antenna is characterized by comprising a test cabinet and a shielding case, wherein the test cabinet comprises a shell, and a spectrum analyzer, a vector signal generator, an oscilloscope and a direct-current power supply which are arranged in the shell, the vector signal generator is connected with a controller, a passive transponder and an antenna cover are arranged in the shielding case, and the distance between the passive transponder and the antenna is 60 cm.
2. The system for testing the whole transponder information receiving unit and the antenna as claimed in claim 1, wherein the dc power supply and the controller are respectively connected to the transponder information receiving unit during a version test and a communication interface test.
3. The complete testing system for the transponder information receiving unit and the antenna as claimed in claim 1, wherein the direct current power supply, the controller and the antenna are respectively connected to the transponder information receiving unit during the range test.
4. The complete testing system for the transponder information receiving unit and the antenna as claimed in claim 1, wherein the direct current power supply, the controller and the oscilloscope are respectively connected to the transponder information receiving unit during peak-to-peak testing of the energy signal.
5. The complete machine test system for the transponder information receiving unit and the antenna as claimed in claim 4, wherein the oscilloscope is connected with a 50 Ω resistor, and the 50 Ω resistor is connected in parallel with the transponder information receiving unit.
6. The complete testing system for the transponder information receiving unit and the antenna as claimed in claim 1, wherein the dc power supply, the controller and the signal generator are respectively connected to the transponder information receiving unit during the uplink signal receiving test.
7. The complete testing system for the transponder information receiving unit and the antenna as claimed in claim 1, wherein during ripple testing, the direct current power supply, the controller and the antenna are respectively connected with the transponder information receiving unit, and the antenna is connected with the spectrum analyzer.
8. The complete testing system for the transponder information receiving unit and the antenna as recited in claim 7, wherein the antenna is connected to the spectrum analyzer through a 20dB attenuator.
9. The complete testing system for the transponder information receiving unit and the antenna as claimed in claim 1, wherein the dc power supply is 110V dc power supply.
10. The complete machine testing system for the transponder information receiving unit and the antenna as recited in claim 1, wherein a universal wheel is provided at a bottom of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022720150.3U CN214154491U (en) | 2020-11-22 | 2020-11-22 | Whole machine test system for transponder information receiving unit and antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022720150.3U CN214154491U (en) | 2020-11-22 | 2020-11-22 | Whole machine test system for transponder information receiving unit and antenna |
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| CN214154491U true CN214154491U (en) | 2021-09-07 |
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| CN202022720150.3U Active CN214154491U (en) | 2020-11-22 | 2020-11-22 | Whole machine test system for transponder information receiving unit and antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114448534A (en) * | 2021-12-24 | 2022-05-06 | 北京联合大学 | Rail transit transponder interference test system |
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2020
- 2020-11-22 CN CN202022720150.3U patent/CN214154491U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114448534A (en) * | 2021-12-24 | 2022-05-06 | 北京联合大学 | Rail transit transponder interference test system |
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