CN213367800U - Test system of vehicle-mounted communication terminal - Google Patents
Test system of vehicle-mounted communication terminal Download PDFInfo
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- CN213367800U CN213367800U CN202022632526.5U CN202022632526U CN213367800U CN 213367800 U CN213367800 U CN 213367800U CN 202022632526 U CN202022632526 U CN 202022632526U CN 213367800 U CN213367800 U CN 213367800U
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Abstract
The embodiment of the utility model discloses on-vehicle communication terminal's test system, this system includes: the system comprises a test terminal and a wireless communication comprehensive tester; the wireless communication comprehensive tester is connected with the vehicle-mounted communication terminal; the radio frequency performance test of the vehicle-mounted communication terminal is realized by the test terminal by sending the control instruction to the wireless communication comprehensive tester, the problem that the test result is influenced by the external environment when the radio frequency performance of the vehicle-mounted communication terminal is tested in the prior art is solved, the wireless communication comprehensive tester establishes the channel model according to the received control instruction to realize the test of the radio frequency performance of the vehicle-mounted communication terminal, the stability of the test environment is ensured, the accuracy of the test result is improved, the performance verification range of the vehicle-mounted communication terminal is improved by simulating the real communication scene of a vehicle, automatic test can be realized by automatically generating a test case through the test terminal, manpower and material resources are saved, and the working efficiency is improved.
Description
Technical Field
The embodiment of the utility model provides a relate to automatic test technical field, especially relate to a vehicle communication terminal's test system.
Background
With the development of the intellectualization of automobiles, the automobile technology has a closer and closer relationship with the internet technology and the wireless communication technology, and more internet technologies and wireless communication technologies are applied to automobiles. The vehicle-mounted communication terminal T-BOX is used as a host control system on an automobile and can be connected with various terminals through a network to control electronic equipment in the automobile, and the communication performance is particularly important when the vehicle-mounted communication terminal is used as a control system for communication.
The radio frequency performance index of the vehicle-mounted communication terminal can be used as a key judgment basis for the strength of the wireless communication capability of the vehicle-mounted communication terminal, and the radio frequency performance test based on multi-scene simulation can better restore a judgment standard for the quality of the communication performance of the whole vehicle in a real environment state. The existing wireless communication external field road test needs to be performed by means of a test environment with a typical representative, the dependence on the environment stability is extremely strong, the test under different environments hardly guarantees the consistency of results, and the external field real vehicle test needs to invest a large amount of manpower and material resources.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vehicle communication terminal's test system to the realization is to vehicle communication terminal's communication performance automated test.
The embodiment of the utility model provides a test system at vehicle-mounted communication terminal, vehicle-mounted communication terminal's test system includes: the system comprises a test terminal and a wireless communication comprehensive tester;
the wireless communication comprehensive tester is connected with the vehicle-mounted communication terminal;
the test terminal sends a control instruction to the wireless communication comprehensive tester to realize the radio frequency performance test of the vehicle-mounted communication terminal.
The embodiment of the utility model provides a test system at on-vehicle communication terminal, this system includes: the system comprises a test terminal and a wireless communication comprehensive tester; the test terminal is connected with the wireless communication comprehensive tester, and the wireless communication comprehensive tester is connected with the vehicle-mounted communication terminal; the test terminal sends a control instruction to the integrated wireless communication tester to realize the radio frequency performance test of the vehicle-mounted communication terminal, so that the problem that the external environment influences the test result when the radio frequency performance of the vehicle-mounted communication terminal is tested in the prior art is solved, the test terminal sends the control instruction to the integrated wireless communication tester, the integrated wireless communication tester establishes a channel model according to the received control instruction to realize the radio frequency performance test of the vehicle-mounted communication terminal, the radio frequency performance test of the vehicle-mounted communication terminal is realized through the integrated wireless communication tester, the stability of the test environment is ensured, the accuracy of the test result is improved, automatic test can be realized through the test terminal, manpower and material resources are saved, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a test system of a vehicle-mounted communication terminal in a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a test system of a vehicle-mounted communication terminal in a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a test system of a vehicle-mounted communication terminal in a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of another testing system for a vehicle-mounted communication terminal according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is the embodiment of the utility model provides a pair of vehicle communication terminal's test system's that provides structural schematic diagram, this embodiment is applicable in the condition of test vehicle communication terminal's radio frequency performance, and this system includes: the system comprises a test terminal 11 and a wireless communication comprehensive tester 12;
the test terminal 11 is connected with the wireless communication comprehensive tester 12, and the wireless communication comprehensive tester 12 is connected with the vehicle-mounted communication terminal 13; the test terminal 11 sends a control instruction to the integrated wireless communication tester 12 to implement a radio frequency performance test on the vehicle-mounted communication terminal 13.
In the present embodiment, the test terminal 11 may be understood as a computer device, such as an upper computer, for testing the in-vehicle communication terminal 13. The control instructions may be understood as computer instructions that instruct the wireless communication integrated tester 12 to begin operation.
When testing the radio frequency performance of the vehicle-mounted communication terminal 13, the test terminal 11 automatically generates a test case according to the type of the selected wireless communication network to be tested, such as (LTE, WCDMA and GSM systems), communication scenario and specific performance test item, the automatic execution software calls the automatic script and executes according to the test case, and sends a control instruction to the wireless communication comprehensive tester 12 to instruct the wireless communication comprehensive tester 12 to establish signaling interaction with the vehicle-mounted communication terminal 13 and complete network connection, after the wireless communication comprehensive tester 12 receives the control instruction from the test terminal 11, the test communication system is configured, channel model establishment is completed according to the selected communication scenario allocation, the performance test item to be tested is tested, after the test is completed, the test data is fed back to the test terminal 11, after the test terminal 11 receives the test data fed back from the wireless communication comprehensive tester 12, and comparing the test result with a preset reference threshold value, automatically judging the test result, and generating a test report according to the test result, wherein the test result comprises test success and test failure.
When the vehicle-mounted communication terminal 13 is tested by the wireless communication comprehensive tester 12, a wireless communication channel model of a wireless communication network of the vehicle-mounted communication terminal 13 in outdoor actual driving is established by the wireless communication comprehensive tester 12 in a laboratory environment, wherein the wireless communication network comprises three systems of LTE, WCDMA and GSM. The LTE scene model comprises a delay distribution scene, a channel model parameter combination scene, a CQI test propagation scene and a high-speed train scene, the WCDMA scene model comprises a static propagation scene, a multi-path fading propagation scene, a mobile propagation scene and a hair growth-death propagation scene, and the GSM scene model comprises a rural area typical scene, a hilly area typical scene, an urban area typical scene and a balance test scene; the specific radio frequency performance test items of the LTE system under each scene comprise maximum output power, minimum output reduction, error vector amplitude, carrier leakage, stray radiation, a frequency spectrum emission template, an adjacent channel leakage ratio and a reference sensitivity level, the specific radio frequency performance test items of the WCDMA system under each scene comprise maximum output power, minimum emission power, frequency error, uplink closed-loop power control, open-loop power control, transmitter power, occupied bandwidth, a frequency spectrum emission template, an adjacent channel leakage power ratio, error vector amplitude, a reference sensitivity level and a maximum input level, and the specific radio frequency performance test items of the GSM system under each scene comprise frequency error, phase error, transmitter carrier peak power, transmission power/time characteristic, continuous modulation spectrum, switch modulation spectrum and reference sensitivity level.
Furthermore, the test terminal is connected with the wireless communication comprehensive tester through a network cable interface.
The embodiment of the utility model provides a test system at on-vehicle communication terminal, this system includes: the system comprises a test terminal and a wireless communication comprehensive tester; the test terminal is connected with the wireless communication comprehensive tester, and the wireless communication comprehensive tester is connected with the vehicle-mounted communication terminal; the test terminal sends a control instruction to the wireless communication comprehensive tester to realize the radio frequency performance test of the vehicle-mounted communication terminal, so that the problem that the external environment influences the test result when the radio frequency performance of the vehicle-mounted communication terminal is tested in the prior art is solved, the test terminal sends the control instruction to the wireless communication comprehensive tester, the wireless communication comprehensive tester establishes a channel model according to the received control instruction to realize the radio frequency performance test of the vehicle-mounted communication terminal, the radio frequency performance test of the vehicle-mounted communication terminal is realized through the wireless communication comprehensive tester, the stability of the test environment is ensured, the accuracy of the test result is improved, the performance verification range of the vehicle-mounted communication terminal is improved through simulating the real communication scene of a vehicle, and the stable establishment and stable establishment of the vehicle-mounted communication terminal and a service cloud platform under various driving environments are ensured through the radio frequency performance test of the vehicle-mounted communication terminal, Reliable data connection, automatic test can be realized by automatically generating a test case through the test terminal, manpower and material resources are saved, and the working efficiency is improved.
Example two
Fig. 2 is a schematic structural diagram of a vehicle-mounted communication terminal according to an embodiment of the present invention. The technical scheme of the embodiment is further refined on the basis of the technical scheme, and the system comprises: a test terminal 21, a wireless communication comprehensive tester 22 and a programmable power supply 23.
The programmable power supply 23 is respectively connected with the test terminal 21 and the vehicle-mounted communication terminal 24 and is used for supplying power to the vehicle-mounted communication terminal 24.
The programmable power supply 23 is connected with the test terminal 21 through a network cable and is connected with the vehicle-mounted communication terminal 24 through a power line. After receiving the instruction sent by the test terminal 21, the programmable power supply 23 automatically configures voltage and current to provide power supply input for the vehicle-mounted communication terminal 24. When the test terminal 21 sends a command to the programmable power supply 23 to instruct the programmable power supply 23 to supply power to the vehicle-mounted communication terminal 24, the command may be the same computer command as the command for instructing the wireless communication integrated tester 22, or may be a different computer command. When the programmable power supply 23 automatically configures voltage and current to supply power to the vehicle-mounted communication terminal 24, the voltage and current values may be preset, the supply current and the supply voltage are the same or different each time, the test terminal 21 carries corresponding current and voltage information when sending an instruction, and the programmable power supply 23 selects appropriate supply current and supply voltage to provide power input for the vehicle-mounted communication terminal 24 according to the current and voltage information carried in the instruction.
The embodiment of the utility model provides a test system of vehicle-mounted communication terminal, the system includes test terminal, wireless communication comprehensive tester and programmable power supply, send control command to wireless communication comprehensive tester through test terminal, wireless communication comprehensive tester establishes channel model according to received control command to realize the test to the radio frequency performance of vehicle-mounted communication terminal, realize the radio frequency performance test to vehicle-mounted communication terminal through wireless communication comprehensive tester, guaranteed the stability of testing environment, improve the accuracy of test result, through the radio frequency performance test to vehicle-mounted communication terminal, guaranteed that vehicle-mounted communication terminal can all establish stable, reliable data connection with service cloud platform under various driving environment, and can realize automated test through test terminal automatic generation test case, save manpower, material resources, the working efficiency is improved, the voltage and the current are automatically configured through the programmable power supply to supply power to the vehicle-mounted communication terminal, manual operation is not needed, and the vehicle-mounted communication terminal is convenient and fast to use.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a test system of a vehicle-mounted communication terminal provided by the third embodiment of the present invention, the system includes: the device comprises a test terminal 31, a wireless communication comprehensive tester 32, a programmable power supply 33 and a shielding box 34.
The shield case 34 is used to seal the in-vehicle communication terminal 35.
The shielding box 34 has an electromagnetic signal shielding function, and the vehicle-mounted communication terminal 35 is sealed through the shielding box 34, that is, the vehicle-mounted communication terminal 35 is disposed in the shielding box, so that the interference that the vehicle-mounted communication terminal 35 receives an external signal in the test process is avoided, and the test precision and accuracy are improved.
Further, the internal power line filter interface of the shielded box 34 is connected to the power interface of the in-vehicle communication terminal 35 through a power line.
Further, the external power line filter interface of the shielded box 34 is connected to the programmable power supply 33 via a power line.
Further, the wireless communication integrated tester 32 is connected to an external radio interface of the shielded box 34 through a radio cable.
Further, the internal radio frequency interface of the shielded box 34 is connected to the wireless communication antenna interface of the in-vehicle communication terminal 35 through a radio frequency cable.
The shielding box 34 includes a power line filter interface and a radio frequency interface, wherein the internal power line filter interface can be understood as a power line filter interface inside the shielding device; an external power line filter interface may be understood as a power line filter interface outside the shield; the external radio frequency interface can be understood as a radio frequency interface outside the shielding box; an internal radio interface may be understood as a radio interface inside the shielding cage.
The internal power line filter interface of the shielding box 34 is connected with the power interface of the vehicle-mounted communication terminal 35 through a power line, and the external power line filter interface is connected with the programmable power supply 33 through a power line, so that the connection between the vehicle-mounted communication terminal 35 and the programmable power supply 33 is realized. The external radio frequency interface of the shielding box 34 is connected with the integrated wireless communication tester 32 through a radio frequency cable, and the internal radio frequency interface is connected with the wireless communication antenna interface of the vehicle-mounted communication terminal 35 through a radio frequency cable, so that the connection between the integrated wireless communication tester 32 and the vehicle-mounted communication terminal 35 is realized.
For example, fig. 4 provides a schematic structural diagram of another testing system of a vehicle-mounted communication terminal, the system includes a testing terminal 41, a wireless communication comprehensive tester 42, a programmable power supply 43 and a shielding box 44, and the testing terminal 41 is connected with the wireless communication comprehensive tester 42 through a network cable. The wireless communication tester 42 is connected with an external radio frequency interface of the shielding box 44 through a radio frequency cable, the shielding box 44 seals the vehicle-mounted communication terminal 45, an internal radio frequency interface of the shielding box 44 is connected with a wireless communication antenna interface of the vehicle-mounted communication terminal 45 through the radio frequency cable, a power supply interface of the vehicle-mounted communication terminal 45 is connected with an internal power line filter interface of the shielding box through a power line, an external power line filter interface of the shielding box is connected with the programmable power supply through a power line, and the other end of the programmable power supply is connected with the testing terminal 41 through a network cable.
The embodiment of the utility model provides a vehicle-mounted communication terminal's test system, this system includes test terminal, wireless communication comprehensive tester, program control power and shielded cell, realizes the radio frequency capability test to vehicle-mounted communication terminal through wireless communication comprehensive tester, has guaranteed the stability of test environment, improves the accuracy of test result; by testing the radio frequency performance of the vehicle-mounted communication terminal, the vehicle-mounted communication terminal can be ensured to be capable of establishing stable and reliable data connection with the service cloud platform under various driving environments, and automatic testing can be realized by automatically generating a test case through the test terminal, so that manpower and material resources are saved, and the working efficiency is improved; the voltage and the current are automatically configured through the programmable power supply to supply power to the vehicle-mounted communication terminal, manual operation is not needed, and convenience and rapidness are realized; the vehicle-mounted communication terminal is sealed through the shielding box, so that the interference that the vehicle-mounted communication terminal receives external signals in the test process is avoided, and the test precision and accuracy are improved.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (8)
1. A test system of a vehicle-mounted communication terminal is characterized by comprising: the system comprises a test terminal and a wireless communication comprehensive tester;
the test terminal is connected with the wireless communication comprehensive tester, and the wireless communication comprehensive tester is connected with the vehicle-mounted communication terminal;
and the test terminal sends a control instruction to the wireless communication comprehensive tester to realize the radio frequency performance test of the vehicle-mounted communication terminal.
2. The system of claim 1, wherein the test terminal is connected to the wireless communication integrated tester via a network cable interface.
3. The system of claim 1, further comprising: and the programmable power supply is respectively connected with the test terminal and the vehicle-mounted communication terminal and is used for supplying power to the vehicle-mounted communication terminal.
4. The system of claim 3, further comprising: the shielding box is provided with a shielding box,
the shielding box is used for sealing the vehicle-mounted communication terminal.
5. The system of claim 4, wherein the internal power line filter interface of the shielded box is connected to the power interface of the in-vehicle communication terminal through a power line.
6. The system of claim 4, wherein the external power line filter interface of the shielded enclosure is connected to the programmable power supply by a power line.
7. The system of claim 4, wherein the wireless communication integrated tester is connected to the external radio frequency interface of the shielded enclosure via a radio frequency cable.
8. The system of claim 4, wherein the internal radio frequency interface of the shielding box is connected with the wireless communication antenna interface of the vehicle-mounted communication terminal through a radio frequency cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022632526.5U CN213367800U (en) | 2020-11-12 | 2020-11-12 | Test system of vehicle-mounted communication terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022632526.5U CN213367800U (en) | 2020-11-12 | 2020-11-12 | Test system of vehicle-mounted communication terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340613A (en) * | 2021-06-09 | 2021-09-03 | 中国第一汽车股份有限公司 | Automatic testing system, method and device for vehicle-mounted terminal module and storage medium |
| CN113472460A (en) * | 2021-05-26 | 2021-10-01 | 中汽研汽车检验中心（天津）有限公司 | Method for testing receiving performance of whole-vehicle-level FM antenna |
-
2020
- 2020-11-12 CN CN202022632526.5U patent/CN213367800U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472460A (en) * | 2021-05-26 | 2021-10-01 | 中汽研汽车检验中心（天津）有限公司 | Method for testing receiving performance of whole-vehicle-level FM antenna |
| CN113472460B (en) * | 2021-05-26 | 2022-11-01 | 中汽研汽车检验中心（天津）有限公司 | Method for testing receiving performance of whole-vehicle-level FM antenna |
| CN113340613A (en) * | 2021-06-09 | 2021-09-03 | 中国第一汽车股份有限公司 | Automatic testing system, method and device for vehicle-mounted terminal module and storage medium |
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