CN210274547U

CN210274547U - Vehicle-mounted wireless communication automatic testing device based on virtual base station

Info

Publication number: CN210274547U
Application number: CN201921045674.8U
Authority: CN
Inventors: 回姝; 李军龙; 丁冠源
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-07
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses an automatic testing arrangement of on-vehicle wireless communication based on virtual base station relates to an automatic test field of on-vehicle wireless communication. The vehicle-mounted wireless communication automatic testing device is characterized in that a base station in a wireless communication system is simulated under a laboratory environment, and wireless data connection is carried out between the base station and a vehicle-mounted communication terminal in a shielding box without external radio frequency interference, so that the testing efficiency is improved, manpower and material resources are saved, the testing passing force is increased, and the reliability of a testing result is ensured; the device tests indoors and adopts the shielding box to solve the testing difficulty of the external radio frequency interference-free environment, can realize voice call testing, data packet communication data transmission testing and eCall functional testing, and has high automation degree and good repeatability.

Description

Vehicle-mounted wireless communication automatic testing device based on virtual base station

Technical Field

The utility model relates to an automatic test field of on-vehicle wireless communication.

Background

With the continuous development of automobile electronic technology, the vehicle-mounted communication technology is rapidly developed. Meanwhile, people have higher and higher requirements on safety, comfort and entertainment during automobile driving, and the traditional data transmission mode based on physical connection cannot meet the requirements of consumers, so that the vehicle-mounted wireless communication technology comes into force. The traditional wired data transmission function and performance verification can carry out simulation test in an end-to-end wired connection mode, and has no excessive requirements on a test environment. The difficulty of the wireless communication test is that the communication function and performance index of the vehicle-mounted communication terminal are tested and verified under the condition that the vehicle-mounted communication terminal is normally connected with an external communication base station in an external radio frequency interference-free environment, so that the test difficulty is greatly increased.

Disclosure of Invention

The utility model aims at providing an automatic testing arrangement of on-vehicle wireless communication, under the laboratory environment, through the basic station among the simulation wireless communication system, carry out wireless data connection with on-vehicle communication terminal in no external radio frequency interference's shielded cell, improved efficiency of software testing, the material resources of using manpower sparingly increase the test and pass through the power, guarantee the test result reliability simultaneously.

The technical scheme of the utility model is that: the vehicle-mounted wireless communication automatic testing equipment consists of a wireless network non-signaling tester, a cellular signal tester, a virtual server, a multifunctional antenna, a shielding box and an upper computer;

the host computer is connected with the wireless communication tester and the cellular signaling tester through a GPIB bus interface respectively, the other ends of the wireless communication tester and the cellular signaling tester are connected with a first multifunctional antenna through a first radio frequency switch, the vehicle-mounted communication terminal is connected with a communication antenna interface, the other end of the communication antenna interface is connected with a second multifunctional antenna through a second radio frequency switch, the first multifunctional antenna, the second radio frequency switch and the second multifunctional antenna are all placed in the same shielding box, and the host computer is connected with the virtual server.

The utility model has the advantages that:

the device solves the testing difficulty of the external radio frequency interference-free environment, can realize voice call testing, data packet communication data transmission testing and eCall functional testing, and has high automation degree and good repeatability.

Drawings

FIG. 1 is a schematic diagram of a system;

FIG. 2 is a voice call testing scenario;

FIG. 3 is a diagram of a packet communication data transfer test scheme;

figure 4 is an eCall functional test scheme.

Detailed Description

In order to clearly understand the technical architecture, solutions and objects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

The vehicle-mounted wireless communication automatic test equipment in the embodiment comprises a wireless network non-signaling tester, a cellular signal tester, a virtual server, a multifunctional antenna, a shielding box and an upper computer;

The utility model discloses test function mainly divide into the triplex: voice call test, data packet communication data transmission test and eCall function test. The upper computer is connected with the wireless communication tester and the cellular signaling tester through a GPIB (general purpose interface bus) interface and sends an automatic test control instruction, after the test instrument receives the test instruction sent by the upper computer, the test instrument automatically switches test modes and performs parameter configuration, after the measurement setting is completed, the test instrument performs data transmission with a terminal to be tested in a wireless mode, decodes and analyzes received data and reports a test result to the upper computer, and the upper computer finally gives a final measurement report according to the test result. .

Voice call test protocol description: the voice call automatic test scheme is shown in 2, the upper computer sends out a voice call mode instruction to the wireless communication tester, after the wireless communication tester receives the instruction, the wireless communication tester firstly selects the wireless communication network mode, including GSM, CDMA, WCDMA, TD-SCDMA, TD/FD-LTE, etc., under each wireless communication mode, the communication modulation mode is configured, simultaneously the available frequency band is distributed to the vehicle-mounted communication terminal, and the vehicle-mounted communication terminal initiates the voice call to the vehicle-mounted communication terminal, the vehicle-mounted communication terminal modulates and demodulates the received radio frequency signal through the wireless transceiver, and responds the voice call with the tester after decoding the radio frequency signal in the opposite direction, establishes a communication link, the tester performs decoding analysis according to the received signal, and reports the obtained test result to the upper computer system through a GPIB bus, and the upper computer unifies and gathers the test data under each communication mode, and automatically gives a test report.

Data packet communication data transfer test scheme description: the data packet communication data transmission test scheme is shown in fig. 3, the data transmission test of the vehicle-mounted communication terminal is carried out in an end-to-end mode, namely, the upper computer initiates a data transmission test instruction to the cellular signaling test instrument, and the test instrument calls the stored configuration file after receiving the instruction. The setting parameters mainly include the maximum radius of the mobile cell, the number of base stations configured in each cell, how to select the arrangement position of the base stations, the maximum transmission power value and other information, and meanwhile, the same-frequency interference parameters of adjacent cells can be set. After the configuration file is called, the test instrument initiates a data transmission request to the vehicle-mounted communication terminal, after the response is completed, a data communication link is established between the test instrument and the vehicle-mounted communication terminal, the test instrument sends a test data packet from the upper computer to the vehicle-mounted communication terminal, the vehicle-mounted communication terminal receives the data and then decodes the data to obtain data information, the decoded information is sent to the test instrument in a reverse direction again, the test instrument decodes and analyzes the test data and reports the test result to the upper computer system, and the upper computer stores the data and outputs a report.

eCall functional test protocol description: as shown in fig. 4, the virtual server configures eCall professional test software, emulates a virtual public security service center, and is connected to an upper computer. Under the test environment of a laboratory, the vehicle distress state is simulated, the vehicle-mounted communication terminal sends the minimum information of the vehicle state to the test instrument and establishes signaling link connection, the test instrument sends an eCall request to the virtual public safety service center through the upper computer, and the virtual service center and the vehicle-mounted communication terminal carry out communication sequence transmission. The testing instrument monitors the communication state between the two in real time, analyzes and displays the testing result, and finally stores the testing result in a file.

Claims

1. A vehicle-mounted wireless communication automatic test device based on a virtual base station is characterized by comprising a wireless network non-signaling tester, a cellular signal tester, a virtual server, a multifunctional antenna, a shielding box and an upper computer;