CN114374444A - Wireless test method and system for radio frequency performance of vehicle-mounted Bluetooth device - Google Patents
Wireless test method and system for radio frequency performance of vehicle-mounted Bluetooth device Download PDFInfo
- Publication number
- CN114374444A CN114374444A CN202111610162.3A CN202111610162A CN114374444A CN 114374444 A CN114374444 A CN 114374444A CN 202111610162 A CN202111610162 A CN 202111610162A CN 114374444 A CN114374444 A CN 114374444A
- Authority
- CN
- China
- Prior art keywords
- bluetooth
- vehicle
- antenna
- comprehensive tester
- radio frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000010998 test method Methods 0.000 title claims abstract description 14
- 239000000523 sample Substances 0.000 claims abstract description 37
- 230000035945 sensitivity Effects 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 12
- 230000010354 integration Effects 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 22
- 238000011056 performance test Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
-
- H04B5/72—
Abstract
The invention relates to a wireless test method and a wireless test system for the radio frequency performance of vehicle-mounted Bluetooth equipment, which comprises the following steps: controlling a Bluetooth comprehensive tester to send an instruction to enable the vehicle-mounted Bluetooth equipment to emit maximum power, acquiring Bluetooth power of an antenna probe by the Bluetooth comprehensive tester, and calculating the equivalent radiation power of the antenna probe by the Bluetooth power; the rotating base is controlled to drive the test ring antenna to rotate clockwise along a central vertical axis, the rotating step is Q5, the rotating range is 180-Q5, the transmitting power is reduced by the Bluetooth comprehensive tester at each angle according to the set step Q6, when the error rate of the vehicle-mounted Bluetooth equipment acquired by the comprehensive tester is Q7, the equivalent receiving sensitivity of the position of the antenna probe is obtained through calculation, and the omnidirectional receiving sensitivity value is obtained through spherical integration. The invention can realize the accurate test of the Bluetooth wireless performance of the vehicle-mounted Bluetooth equipment complete machine which is formed by the Bluetooth module and the Bluetooth antenna.
Description
Technical Field
The invention relates to the technical field of Bluetooth radio frequency, in particular to a wireless test technology for radio frequency performance of vehicle-mounted Bluetooth equipment.
Background
As shown in fig. 3 and 4, the vehicle-mounted bluetooth hardware system mainly comprises a bluetooth module 2 and a bluetooth antenna 3, the bluetooth SIG alliance bluetooth BQB test requires that the radio frequency performance of the bluetooth module is measured in a conduction mode, but the conduction mode measurement can only measure the radio frequency performance of the bluetooth module, and the problem that the bluetooth radio frequency performance of the vehicle-mounted bluetooth equipment complete machine formed by the bluetooth module 2 and the bluetooth antenna 3 is not fully verified exists, so that the test result is inaccurate.
Chinese patent publication No. CN21182654U discloses a technology named as "a multiband complete vehicle antenna test system", and proposes a test system for measuring complete vehicle antenna performance by using a wireless method, but the system is not suitable for radio frequency performance test of vehicle-mounted bluetooth devices.
Disclosure of Invention
The invention aims to provide a wireless test method and a wireless test system for the radio frequency performance of vehicle-mounted Bluetooth equipment, which solve the technical problems that: in the prior art, the vehicle-mounted Bluetooth device is tested only by adopting a conduction mode to test the Bluetooth module, and the Bluetooth antenna is omitted, so that the problem that the whole Bluetooth wireless radio frequency performance of the vehicle-mounted Bluetooth device consisting of the Bluetooth module and the Bluetooth antenna is not fully verified exists.
In order to solve the technical problems, the invention adopts the following technical scheme: a wireless test method for the radio frequency performance of vehicle-mounted Bluetooth equipment comprises the following steps:
s01: controlling the vehicle-mounted equipment to switch to a Bluetooth radio frequency performance test mode;
s02: controlling a Bluetooth comprehensive tester to send an instruction to enable the vehicle-mounted Bluetooth equipment to emit maximum power, acquiring Bluetooth power of an antenna probe by the Bluetooth comprehensive tester, and calculating equivalent radiation power of the antenna probe by the Bluetooth power;
s03: controlling a rotating base to drive a test loop antenna to rotate clockwise along a central vertical axis through a rotating arm, wherein the rotating step is Q1, the range of Q1 is 0.5-3 degrees, the rotating range is 180-Q1, the Bluetooth comprehensive tester obtains the power value of an antenna probe at each angle, the equivalent radiation power of the position of the antenna probe is calculated based on the power value, and the total omnidirectional transmitting power value of the vehicle-mounted Bluetooth equipment is obtained through spherical integration;
s04: controlling the vehicle-mounted Bluetooth equipment to switch to a Bluetooth radio frequency performance test mode;
s05: controlling the Bluetooth comprehensive tester to enable an antenna probe to generate a Bluetooth signal with initial intensity being a set value Q2, enabling the vehicle-mounted Bluetooth equipment to receive a Bluetooth data packet from the Bluetooth comprehensive tester under the intensity of the Bluetooth signal, enabling the Bluetooth comprehensive tester to obtain an error rate of the Bluetooth data packet obtained by the vehicle-mounted Bluetooth equipment, enabling the Bluetooth comprehensive tester to reduce transmission power according to a set step Q3, and calculating to obtain equivalent receiving sensitivity of the position of the antenna probe when the error rate obtained by the Bluetooth comprehensive tester is Q4;
s06: the method comprises the steps of controlling a rotating base to drive a test ring antenna to rotate clockwise along a central vertical axis, wherein the rotating step is Q5, the value range of Q5 is 0.5-3 degrees, the rotating range is 180-Q5, the Bluetooth comprehensive tester reduces the transmitting power according to the set step Q6 at each angle, when the error rate of the vehicle-mounted Bluetooth equipment obtained by the comprehensive tester is Q7, the equivalent receiving sensitivity of the position of an antenna probe is obtained through calculation, and the omnidirectional receiving sensitivity value is obtained through spherical integration.
Preferably, the first and second electrodes are formed of a metal,
in S03, the calculation formula of the total omni-directional transmit power is:
wherein M is the number of theta axis measurement points, N is the number of phi axis measurement points, EIRP is the equivalent radiation power of a certain antenna probe measurement point, and TRP is the total omnidirectional emission power.
Preferably, the first and second electrodes are formed of a metal,
in S06, the calculation formula of the omni-directional reception sensitivity is:
wherein M is the number of theta axis measurement points, N is the number of phi axis measurement points, EIS is the equivalent receiving sensitivity of a certain antenna probe measurement point, and TIS is the omnidirectional receiving sensitivity.
Preferably, the first and second electrodes are formed of a metal,
in the S03, the Q1 is equal to 1 °, the rotation range is to 179 °, while the dwell time of the test loop antenna at each angle is 1 second.
Preferably, the first and second electrodes are formed of a metal,
in the S05, the Q2 is-20 dBm;
in S05, if the ber is not greater than 0.1%, the bluetooth comprehensive tester decreases the transmission power by 1dBm each time according to the set step Q3, and the Q4 is 0.1%.
Preferably, the first and second electrodes are formed of a metal,
in the S06, the Q5 is equal to 1 °, the rotation range is to 179 °, while the dwell time of the test loop antenna at each angle is 1 second, the Q7 is equal to 0.1%.
The invention also provides a wireless test system for the radio frequency performance of the vehicle-mounted Bluetooth equipment, which comprises a vehicle-mounted Bluetooth equipment Bluetooth comprehensive tester, an anechoic chamber, a test antenna, an equipment bracket, a rotating base, a rotating arm, a control line, a coaxial line, a computer and a connecting line; the computer is communicated with the Bluetooth comprehensive tester through a connecting line, the Bluetooth comprehensive tester is communicated with the test ring antenna through a coaxial line, an antenna probe is arranged on the test ring antenna, the test ring antenna is connected with the rotating base through a rotating arm, the computer is communicated with the rotating base through a control line, the rotating base is controlled to rotate the rotating arm to drive the test ring antenna 7 to rotate, the vehicle-mounted Bluetooth device is placed at the central position of the device support, the device support is located at the position of the center of a circle formed by the test ring antenna, and the test ring antenna and the vehicle-mounted Bluetooth device are located in an anechoic chamber; the system realizes the wireless test method for the radio frequency performance of the vehicle-mounted Bluetooth equipment.
Preferably, the first and second electrodes are formed of a metal,
the linear distance between the vehicle-mounted Bluetooth device and the inner side of the test loop antenna is 100 cm.
Preferably, the first and second electrodes are formed of a metal,
the number of the antenna probes is more than or equal to 128.
Preferably, the first and second electrodes are formed of a metal,
the connecting line comprises a network cable, UBS or GPIB;
the equipment support is made of plastic or foam insulating materials.
By adopting the technical scheme, the invention has the following beneficial technical effects: the invention effectively solves the problem that the Bluetooth radio frequency performance of the whole vehicle-mounted Bluetooth device consisting of the Bluetooth module and the Bluetooth antenna cannot be fully verified by using a conduction mode for measurement in the conventional vehicle-mounted Bluetooth device radio frequency performance test, and more scenes for using the Bluetooth of the vehicle-mounted Bluetooth device are wirelessly connected through the Bluetooth, so that the invention verifies the omnidirectional transmitting power and the omnidirectional receiving sensitivity performance of the vehicle-mounted Bluetooth device from a wireless angle, and can realize the accurate test of the Bluetooth wireless performance of the whole vehicle-mounted Bluetooth device consisting of the Bluetooth module and the Bluetooth antenna.
Drawings
FIG. 1 is a schematic diagram of a wireless test arrangement according to the present invention;
FIG. 2 is a coordinate system for omni-directional transmit power and omni-directional receive sensitivity measurement according to the present invention;
FIG. 3 is a schematic diagram of a Bluetooth structure of a vehicle-mounted Bluetooth device according to the present invention;
FIG. 4 is a diagram illustrating a conduction test in the background art;
in the figure: 1-vehicle bluetooth device; 2-a bluetooth module; 3-a bluetooth antenna; 4-a feeder; 5, a Bluetooth comprehensive tester; 6-anechoic chamber; 7-test loop antenna; 8-an antenna probe; 9-equipment support; 10-rotating the base; 11-a rotating arm; 12-a control line; 13-coaxial line; 14-a computer; 15-connecting line.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1, which is a schematic diagram of a test arrangement in a wireless manner according to the present invention, a vehicle-mounted bluetooth device 1 establishes a connection with a bluetooth comprehensive tester 5 through a wireless signal to perform a bluetooth radio frequency performance test, and the test process includes a bluetooth antenna 3.
The wireless test system for the radio frequency performance of the vehicle-mounted Bluetooth device comprises the vehicle-mounted Bluetooth device 1, a Bluetooth comprehensive tester 5, an anechoic chamber 6, a test antenna 7, a device support 9, a rotating base 10, a rotating arm 11, a control line 12, a coaxial line 13, a computer 14 and a connecting line 15; the computer 14 is communicated with the Bluetooth comprehensive tester 5 through a connecting wire 15, the Bluetooth comprehensive tester 5 is communicated with the test ring antenna 7 through a coaxial wire 13, an antenna probe 8 is arranged on the test ring antenna 7, the test ring antenna 7 is connected with the rotating base 10 through a rotating arm 11, the computer 14 is communicated with the rotating base 10 through a control wire 12, the rotating base 10 is controlled to rotate the rotating arm 11 to drive the test ring antenna 7 to rotate, the vehicle-mounted Bluetooth device 1 is placed at the central position of the device support 9, the device support 9 is positioned at the center position of a circle formed by the test ring antenna, the test ring antenna 7 and the vehicle-mounted Bluetooth device 1 are positioned in the anechoic chamber 6, the anechoic chamber 6 can shield electromagnetic signals with the same frequency as Bluetooth in the external environment, and inaccurate measurement is avoided;
in particular, the amount of the solvent to be used,
the linear distance between the vehicle-mounted Bluetooth device 1 and the inner side of the test loop antenna 7 is 100 cm.
In particular, the amount of the solvent to be used,
the number of antenna probes 8 is equal to or greater than 128.
In particular, the amount of the solvent to be used,
the connecting line 15 comprises a network cable, UBS or GPIO;
the equipment support 9 is made of plastic or foam insulating materials, and can effectively prevent metal materials from shielding and shielding wireless signals.
The system can realize the following method, namely a wireless test method for the radio frequency performance of the vehicle-mounted Bluetooth equipment, and comprises the following steps:
firstly, controlling the vehicle-mounted Bluetooth device 1 to switch to a Bluetooth radio frequency performance test mode through an adb command or other modes.
In the system, the Bluetooth comprehensive tester 5 simulates another Bluetooth device and is connected with the test loop antenna 7 through the coaxial line 13 to realize the information broadcasting and receiving of the simulated Bluetooth radio frequency signal, and the vehicle-mounted Bluetooth device 1 is connected with the Bluetooth comprehensive tester 5 in a wireless mode.
Secondly, the computer 14 controls the bluetooth comprehensive tester 5 to send an instruction through the connecting line 15, i.e. ethernet or USB or GPIB, so that the vehicle-mounted bluetooth device 1 transmits the maximum power, the bluetooth comprehensive tester 5 obtains the bluetooth power of the antenna probe 8 and sends the bluetooth power to the computer 14, and the computer 14 calculates the equivalent radiation power of the antenna probe 8.
Referring to fig. 2, in order to measure a coordinate system of the omnidirectional transmitting power and the omnidirectional receiving sensitivity of the present invention, an angle θ is an included angle between a radiation vector 1 and a positive half axis of a Z axis, and an angle Φ is an included angle between a projection of the radiation vector 1 on an XY plane and a positive half axis of an X axis.
Thirdly, the computer 14 controls the rotating base 10 to drive the test loop antenna 7 to rotate clockwise along the central vertical axis through the rotating arm 11, the rotating step is 1 degree, the rotating range is 179 degrees, meanwhile, the test loop antenna 7 stays at each angle for 1 second, the bluetooth comprehensive measuring instrument 5 at each angle obtains the power value of the antenna probe 8 and gives the power value to the computer 14, the computer 14 calculates the equivalent radiation power of the position of the antenna probe 8, and the spherical integral is carried out to obtain the total omnidirectional transmission power value of the vehicle-mounted bluetooth device 1.
The total omni-directional transmit power (TRP) is calculated as:
wherein M is the number of theta axis measurement points, N is the number of phi axis measurement points, and EIRP is the equivalent radiation power of a certain antenna probe measurement point.
And fourthly, controlling the vehicle-mounted Bluetooth device 1 to be switched to a Bluetooth radio frequency performance test mode through an adb command or other modes.
In the system, the Bluetooth comprehensive tester 5 simulates another Bluetooth device and is connected with the test loop antenna 7 through the coaxial line 13 to realize information broadcasting and receiving of simulated Bluetooth radio frequency signals, and the vehicle-mounted Bluetooth device 1 is connected with the Bluetooth comprehensive tester 5 in a wireless mode.
Fifthly, the computer 14 controls the bluetooth comprehensive tester 5 through the connection line 15, i.e. ethernet or USB or GPIB, so that a bluetooth signal with an initial intensity of-20 dBm is generated at the wireless probe 8, the vehicle-mounted bluetooth device 1 receives a bluetooth data packet from the bluetooth comprehensive tester 5 at the signal intensity, and the bluetooth comprehensive tester 5 obtains the error rate of the bluetooth data packet received by the vehicle-mounted bluetooth device 1, specifically, when the error rate is not greater than 0.1%, the bluetooth comprehensive tester 5 reduces the transmission power by a certain step, and reduces 1dBm each time. And reducing the power every time, and when the error rate received by the vehicle-mounted Bluetooth device 1 acquired by the Bluetooth comprehensive tester 5 is just 0.1%, calculating by the computer 14 to obtain the equivalent receiving sensitivity of the position of the antenna probe 8.
Referring to fig. 2, in the sixth step, the computer 14 controls the rotating base 10 to drive the test loop antenna 7 to rotate clockwise along the central vertical axis, the rotating step is 1 °, the rotating range is 179 °, meanwhile, the test loop antenna 7 stays at each angle for 1 second, at each angle, the bluetooth comprehensive tester 5 reduces the transmitting power according to a certain step, when the error rate of the bluetooth comprehensive tester 5 obtaining the vehicle-mounted bluetooth device 1 is just 0.1%, the computer 14 calculates the equivalent receiving sensitivity of the antenna probe 8 position, and the spherical integral is used to obtain the omnidirectional receiving sensitivity value.
The calculation formula of the omnidirectional receive sensitivity (TIS) is:
wherein M is the number of theta axis measurement points, N is the number of phi axis measurement points, and EIS is the equivalent receiving sensitivity of a certain antenna probe measurement point.
Claims (10)
1. A wireless test method for the radio frequency performance of vehicle-mounted Bluetooth equipment is characterized by comprising the following steps:
s01: controlling the vehicle-mounted equipment (1) to switch to a Bluetooth radio frequency performance test mode;
s02: controlling a Bluetooth comprehensive tester (5) to send an instruction to enable the vehicle-mounted Bluetooth device (1) to emit maximum power, obtaining Bluetooth power of an antenna probe (8) by the Bluetooth comprehensive tester (5), and calculating the equivalent radiation power of the antenna probe (8) by giving the Bluetooth power;
s03: controlling a rotating base (10) to drive a test loop antenna (7) to rotate clockwise along a central vertical axis through a rotating arm (11), wherein the rotating step is Q1, the value range of Q1 is 0.5-3 degrees, the rotating range is 180-Q1, the Bluetooth comprehensive tester (5) obtains the power value of the antenna probe (8) at each angle, the equivalent radiation power of the position of the antenna probe (8) is calculated based on the power value, and the total omnidirectional emission power value of the vehicle-mounted Bluetooth equipment (1) is obtained through spherical integration;
s04: controlling the vehicle-mounted Bluetooth device (1) to switch to a Bluetooth radio frequency performance test mode;
s05: controlling the Bluetooth comprehensive tester (5) to enable an antenna probe (8) to generate a Bluetooth signal with initial intensity being a set value Q2, receiving a Bluetooth data packet from the Bluetooth comprehensive tester (5) by the vehicle-mounted Bluetooth equipment (1) under the intensity of the Bluetooth signal, obtaining the error rate of the Bluetooth data packet obtained by the vehicle-mounted Bluetooth equipment (1) by the Bluetooth comprehensive tester (5), enabling the Bluetooth comprehensive tester (5) to reduce transmission power according to a set step Q3, and calculating the equivalent receiving sensitivity of the position of the antenna probe (8) when the error rate obtained by the Bluetooth comprehensive tester (5) is Q4;
s06: the method comprises the steps that a rotating base (10) is controlled to drive a test ring antenna (7) to rotate clockwise along a central vertical axis, the rotating step is Q5, the value range of Q5 is 0.5-3 degrees, the rotating range is 180-Q5, the Bluetooth comprehensive tester (5) reduces transmitting power according to set step Q6 at each angle, when the comprehensive tester (5) obtains that the error rate of an on-board Bluetooth device (1) is Q7, the equivalent receiving sensitivity of the position of an antenna probe (8) is obtained through calculation, and the omnidirectional receiving sensitivity value is obtained through spherical integration.
2. The wireless test method of the vehicle Bluetooth device radio frequency performance according to claim 1,
in S03, the calculation formula of the total omni-directional transmit power is:
wherein M is the number of theta axis measurement points, N is the number of phi axis measurement points, EIRP is the equivalent radiation power of a certain antenna probe measurement point, and TRP is the total omnidirectional emission power.
3. The wireless test method of the vehicle Bluetooth device radio frequency performance according to claim 1,
in S06, the calculation formula of the omni-directional reception sensitivity is:
wherein M is the number of theta axis measurement points, N is the number of phi axis measurement points, EIS is the equivalent receiving sensitivity of a certain antenna probe measurement point, and TIS is the omnidirectional receiving sensitivity.
4. The wireless test method of the vehicle Bluetooth device radio frequency performance according to claim 1,
in the S03, the Q1 is equal to 1 °, the rotation range is 179 °, while the dwell time of the test loop antenna (7) at each angle is 1 second.
5. The wireless test method of the vehicle Bluetooth device radio frequency performance according to claim 1,
in the S05, the Q2 is-20 dBm;
in the S05, if the ber is not greater than 0.1%, the bluetooth synthesizer (5) decreases the transmission power by a set step Q3 by 1dBm each time, and the Q4 is 0.1%.
6. The wireless test method of the vehicle Bluetooth device radio frequency performance according to claim 1,
in the S06, the Q5 is equal to 1 °, the rotation range is 179 °, while the dwell time of the test loop antenna (7) at each angle is 1 second, and the Q7 is equal to 0.1%.
7. A wireless test system for radio frequency performance of vehicle-mounted Bluetooth equipment is characterized by comprising the vehicle-mounted Bluetooth equipment (1), a Bluetooth comprehensive tester (5), an anechoic chamber (6), a test antenna (7), an equipment bracket (9), a rotating base (10), a rotating arm (11), a control line (12), a coaxial line (13), a computer (14) and a connecting line (15); the computer (14) is communicated with the Bluetooth comprehensive tester (5) through a connecting line (15), the Bluetooth comprehensive tester (5) is communicated with the test loop antenna (7) through a coaxial line (13), an antenna probe (8) is arranged on the test loop antenna (7), the test loop antenna (7) is connected with the rotating base (10) through a rotating arm (11), the computer (14) is communicated with the rotating base (10) through a control line (12), the rotating base (10) is controlled to rotate the rotating arm (11) to drive the test loop antenna (7) to rotate, the vehicle-mounted Bluetooth device (1) is placed at the central position of the device support (9), the device support (9) is located at the position of the center of a circle formed by the test loop antenna, and the test loop antenna (7) and the vehicle-mounted Bluetooth device (1) are located in the anechoic chamber (6); the system realizes the wireless test method of the radio frequency performance of the vehicle-mounted Bluetooth device in any one of claims 1 to 6.
8. The system of claim 7,
the linear distance between the vehicle-mounted Bluetooth device (1) and the inner side of the test loop antenna (7) is 100 cm.
9. The system of claim 7,
the number of the antenna probes (8) is more than or equal to 128.
10. The system of claim 7,
the connection line (15) comprises a network cable, UBS or GPIB;
the equipment support (9) is made of plastic or foam insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610162.3A CN114374444A (en) | 2021-12-27 | 2021-12-27 | Wireless test method and system for radio frequency performance of vehicle-mounted Bluetooth device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610162.3A CN114374444A (en) | 2021-12-27 | 2021-12-27 | Wireless test method and system for radio frequency performance of vehicle-mounted Bluetooth device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114374444A true CN114374444A (en) | 2022-04-19 |
Family
ID=81143027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111610162.3A Withdrawn CN114374444A (en) | 2021-12-27 | 2021-12-27 | Wireless test method and system for radio frequency performance of vehicle-mounted Bluetooth device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114374444A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115499070A (en) * | 2022-08-08 | 2022-12-20 | 成都万创科技股份有限公司 | Wireless module testing system and method |
| CN117579195A (en) * | 2024-01-15 | 2024-02-20 | 中国汽车技术研究中心有限公司 | Air interface test method, equipment and storage medium of vehicle antenna system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009039693A1 (en) * | 2007-09-24 | 2009-04-02 | Zte Corporation | Testing method of the ota performances of a wireless communication product |
| CN101459477A (en) * | 2008-12-28 | 2009-06-17 | 中国电子科技集团公司第四十一研究所 | Automatic test method for mobile phone antenna radiation performance |
| CN101605350A (en) * | 2009-07-01 | 2009-12-16 | 工业和信息化部通信计量中心 | Based on multiple wireless access technology space Performance Test System and method of testing thereof |
| CN107154825A (en) * | 2017-06-26 | 2017-09-12 | 北京中科国技信息系统有限公司 | The OTA test systems and method of NB IoT equipment |
| CN107911180A (en) * | 2017-11-16 | 2018-04-13 | 四川长虹电器股份有限公司 | A kind of spacial radio frequency performance test method of large scale end product |
-
2021
- 2021-12-27 CN CN202111610162.3A patent/CN114374444A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009039693A1 (en) * | 2007-09-24 | 2009-04-02 | Zte Corporation | Testing method of the ota performances of a wireless communication product |
| CN101459477A (en) * | 2008-12-28 | 2009-06-17 | 中国电子科技集团公司第四十一研究所 | Automatic test method for mobile phone antenna radiation performance |
| CN101605350A (en) * | 2009-07-01 | 2009-12-16 | 工业和信息化部通信计量中心 | Based on multiple wireless access technology space Performance Test System and method of testing thereof |
| CN107154825A (en) * | 2017-06-26 | 2017-09-12 | 北京中科国技信息系统有限公司 | The OTA test systems and method of NB IoT equipment |
| CN107911180A (en) * | 2017-11-16 | 2018-04-13 | 四川长虹电器股份有限公司 | A kind of spacial radio frequency performance test method of large scale end product |
Non-Patent Citations (1)
| Title |
|---|
| 杨蒙: "面向无线通信终端的OTA性能测试方法研究", 《中国优秀硕士学位论文全文数据库》, no. 05 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115499070A (en) * | 2022-08-08 | 2022-12-20 | 成都万创科技股份有限公司 | Wireless module testing system and method |
| CN117579195A (en) * | 2024-01-15 | 2024-02-20 | 中国汽车技术研究中心有限公司 | Air interface test method, equipment and storage medium of vehicle antenna system |
| CN117579195B (en) * | 2024-01-15 | 2024-04-09 | 中国汽车技术研究中心有限公司 | Air interface test method, equipment and storage medium of vehicle antenna system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107643452B (en) | System and method for over-the-air testing of millimeter waves | |
| Arai | Measurement of mobile antenna systems | |
| CN114374444A (en) | Wireless test method and system for radio frequency performance of vehicle-mounted Bluetooth device | |
| JP6682440B2 (en) | Method and apparatus for testing wireless communication to a vehicle | |
| US9780890B2 (en) | Wireless measuring system and method for measurement of a device under test with an antenna-array, considering maximum gain direction of the antenna array | |
| US9002287B2 (en) | System for testing multi-antenna devices | |
| CN204991921U (en) | Wireless communication device | |
| WO2020224044A1 (en) | Antenna testing method and device, and storage medium | |
| US10393786B2 (en) | Test system and method for over the air (OTA) measurements based on randomly adjusted measurement points | |
| JP6616810B2 (en) | Radio terminal reception characteristic measuring system and measuring method | |
| CN113162706B (en) | Radio frequency performance test method and system for wireless equipment | |
| CN110542798A (en) | Method and system for testing antenna arrays using midfield antenna patterns | |
| WO2002029424A1 (en) | Method and system for rating antenna performance | |
| JPWO2008139832A1 (en) | Radiation efficiency measuring apparatus and radiation efficiency measuring method | |
| CN107851896B (en) | Wireless communication device and setting method thereof | |
| US7969367B2 (en) | Antenna coupler | |
| WO2020050824A1 (en) | Near-field antenna for remote radio control of an antenna array | |
| EP2882214A1 (en) | Aerial spatial correlation measurement method, device and terminal device | |
| CN111865371B (en) | MIMO testing device for multi-antenna wireless equipment | |
| Pelland et al. | Automotive OTA measurement techniques and challenges | |
| CN114124250B (en) | Radio frequency consistency test system of millimeter wave terminal equipment | |
| CN207399220U (en) | The rapid diagnosis system of wireless terminal | |
| CN108307421B (en) | Measuring method of wireless terminal, computer readable storage medium, device and system | |
| Pelham et al. | Non-intrusive characterization of 60GHz antenna array, using packet measurements | |
| Almarashli et al. | A new method for evaluation of LTE MIMO antennas in automotive application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220419 |
|
| WW01 | Invention patent application withdrawn after publication |