CN109756278A - A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth - Google Patents
A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth Download PDFInfo
- Publication number
- CN109756278A CN109756278A CN201811474874.5A CN201811474874A CN109756278A CN 109756278 A CN109756278 A CN 109756278A CN 201811474874 A CN201811474874 A CN 201811474874A CN 109756278 A CN109756278 A CN 109756278A
- Authority
- CN
- China
- Prior art keywords
- test
- ancillary equipment
- gps
- standard
- bluetooth
- 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.)
- Pending
Links
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a kind of GPS-OTA closed loop test methods eated dishes without rice or wine based on bluetooth, belong to field of communication technology, including establishing PC computer, ancillary equipment to be measured, standard ancillary equipment, GPS signal source, dual polarized antenna, duplexer, darkroom, Devices to test and standard device, PC computer, ancillary equipment to be measured, standard ancillary equipment, GPS signal source and duplexer are set to the outside in darkroom, dual polarized antenna is equipped with inside darkroom, Devices to test and standard device, integrated chip itself bottom, which is made an uproar, when solving the test of GPS active antenna interferes big technical problem, by bluetooth by test data Real-time Feedback, to realize closed loop test, effectively solve terminal itself interference problem, it tests more acurrate, precision is higher, positioning time faster test effect, and it is reliable also to have transmission in wireless communications , static lower propagation delay time the characteristics of.
Description
Technical field
The invention belongs to field of communication technology, in particular to a kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth.
Background technique
With popularizing for smart phone, GPS has become a necessary functions of the business such as intelligent terminal navigation, positioning.
Since GPS uses satellite communication technology, GPS signal is lost by atmosphere and the influence of some such as city multipath effects, real
The signal of border incoming terminal is very faint, and this requires receivers more excellent performance.Therefore to GPS wireless receiving
The active antenna test of system is very necessary.
Civilian GPS is currently mainly used L1 frequency range and provides support for user equipment downlink communication service, is mainly used in navigation, determines
Position and is tested the speed at time service.This just proposes challenge to measurement scheme, because individual event communication (open loop) system can not be formed effectively instead
Infeed mechanism just will appear much during the test because of inaccurate situation caused by antenna directivity.It goes from the above considerations
Also occur some closed loop test schemes in the industry: i.e. system by WLAN eat dishes without rice or wine (IEEE802.11 system standard) GPS measured
Data return to control unit analysis in real time, and adjust GPS signal in real time based on the analysis results.This scheme can efficiently solve
The defect of open-loop test system, but terminal IC integrated level is high at present, and many FM/BT/WLAN/GPS, which have been integrated, to be done together,
In WLAN data transmission, (general terminal WIFI transmitter power be not less than 10dbm) can cause the bottom IC to be made an uproar raising, may be right
GPS receiver performance causes additional interference to influence, and leads to GPS degradation.
Conventional open-loop tests block diagram as shown in Figure 1, obtaining GPS signal generator by measurement antenna after DUT booting
Signal specific, control terminal constantly control the state of darkroom turntable and the switching of polarization components by time-parameters, to realize measurement.
DUT obtains GPS signal and obtains carrier-to-noise ratio CN0 after TC and BB processing, and is stored in storage equipment as measurement data.
GPS receiver is easy to appear obstruction under strong signal in traditional machine design scheme, and will appear mistake under weak signal
Very (test result is shown in Fig. 2, the curve in Fig. 2 be GPS receiver carrier-to-noise ratio db), if wanting to obtain accurate test value, need by
Repeatedly the transmission power in test and constantly revise signal source is made a return journey adaptive since open-loop test cannot form effective Feedback repeatedly
The transmission power for answering ground adjustment signal source, so traditional open-loop test has low efficiency, the not high problem of accuracy.
Summary of the invention
The object of the present invention is to provide a kind of GPS-OTA closed loop test methods eated dishes without rice or wine based on bluetooth, and it is active to solve GPS
Integrated chip itself bottom, which is made an uproar, when antenna measurement interferes big technical problem.
To achieve the above object, the invention adopts the following technical scheme:
A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth, is included the following steps:
Step 1: establishing PC computer, ancillary equipment to be measured, standard ancillary equipment, GPS signal source, dual polarized antenna, antenna
Switch, darkroom, Devices to test and standard device, PC computer, ancillary equipment to be measured, standard ancillary equipment, GPS signal source and antenna
Switch is set to the outside in darkroom, is equipped with dual polarized antenna, Devices to test and standard device inside darkroom；
Ancillary equipment and standard ancillary equipment to be measured passes through two usb bus and PC compunlcation respectively；
Duplexer and GPS signal source pass through gpib interface and PC compunlcation；
Dual polarized antenna is electrically connected with duplexer；
Step 2: Devices to test and standard device are bluetooth equipment, Devices to test and ancillary equipment Bluetooth pairing to be measured；
Standard device and standard ancillary equipment Bluetooth pairing；
Step 3:PC computer sends test command to GPS signal source, after GPS signal source receives test command, issues GPS
Signal value A0；
Step 4:GPS signal value A0 is sent in darkroom by dual polarized antenna；
Step 5:GPS signal value A0 is received after decaying of eating dishes without rice or wine, while by Devices to test and standard device in darkroom；
Step 6: Devices to test parsing GPS signal value A0 and the carrier-to-noise ratio CNR0 for being converted into GPS, and by the value with data flow
Form sends ancillary equipment to be measured to, and ancillary equipment to be measured passes through USB data transmission to PC. again
Meanwhile standard device parses GPS signal value A0 and is converted into the carrier-to-noise ratio CNR1 of GPS, and by the value with data flow
Form sends standard ancillary equipment to, and ancillary equipment to be measured passes through USB data transmission to PC again；
Step 7:CNR1 is the return value of standard device, can control signal source for this standard value PC to send out mark corresponding
Quasi- power.PC can calculate adjustment signal source according to the difference of two two values after receiving the two return values of CNR0 and CNR1
Transmission power, and 1 new performance number A1 can be issued；
Step 8: repeating step 3 to step 7, to find out the receptivity limiting value of Devices to test；
Step 9: the method that step 8 is arrived according to step 3, by with standard device as benchmark, with the side of similar difference
Formula tests out the receptivity of Devices to test.
Preferably, the GPS signal source is Agilent8960.
Preferably, the ancillary equipment to be measured and the standard ancillary equipment are the Android intelligence with Bluetooth function
It can mobile phone.
Preferably, the duplexer is used to control the direction of the launch of dual polarized antenna.
A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth of the present invention solves the survey of GPS active antenna
Integrated chip itself bottom, which is made an uproar, when examination interferes big technical problem, and by bluetooth by test data Real-time Feedback, Lai Shixian closed loop is surveyed
Examination effectively solves terminal itself interference problem, and test is more acurrate, and precision is higher, positioning time faster test effect, and
Also has the characteristics of reliable transmission, static state lower propagation delay time in wireless communication, not only available more accurate test knot
Fruit can also obtain clearly process data, convenient to analyze the antenna pattern of antenna.
Detailed description of the invention
Fig. 1 is conventional open-loop test macro framework map；
Fig. 2 is the test result figure of conventional open-loop test macro framework map；
Fig. 3 is system architecture figure of the invention；
Fig. 4 is sensitivity and the antenna radiation pattern of darkroom test of the invention.
Specific embodiment
A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth as Figure 1-Figure 4, is included the following steps:
Step 1: establishing PC computer, ancillary equipment to be measured, standard ancillary equipment, GPS signal source, dual polarized antenna, antenna
Switch, darkroom, Devices to test and standard device, PC computer, ancillary equipment to be measured, standard ancillary equipment, GPS signal source and antenna
Switch is set to the outside in darkroom, is equipped with dual polarized antenna, Devices to test and standard device inside darkroom；
Ancillary equipment and standard ancillary equipment to be measured passes through two usb bus and PC compunlcation respectively；
Duplexer and GPS signal source pass through gpib interface and PC compunlcation；
Dual polarized antenna is electrically connected with duplexer；
WLAN/BT/GPS etc. has been integrated in 1 chip in mainstream Cell Phone Design at present, any two function while work
Making, which must can all make the bottom IC itself make an uproar, becomes larger.Since the transmission power of general WLAN is all in 10dbm or more, and the hair of BT (bluetooth)
Penetrate power generally all in 0dbm hereinafter, opposite more much smaller than WLAN, it is corresponding caused by make an uproar also can be than with WLAN the bottom EMI of IC
When it is much smaller；
Data as shown in Table 1 and Table 2 can be seen that in the case where opening bluetooth respectively and opening WIFI, and bluetooth is wanted
It is more much smaller than the interference to GPS of WIFI；And positioning time is also closer to default conditions.
Table 1
Table 2
The present invention is smart phone using ancillary equipment to be measured and standard ancillary equipment, at low cost, easy to operate.
Example accepted standard equipment of the present invention is the normal device for being used to formulate check criteria that manufacturer specifies.
Step 2: Devices to test and standard device are bluetooth equipment, Devices to test and ancillary equipment Bluetooth pairing to be measured；
Standard device and standard ancillary equipment Bluetooth pairing；
Step 3:PC computer sends test command to GPS signal source, after GPS signal source receives test command, issues GPS
Signal value A0；
Step 4:GPS signal value A0 is sent in darkroom by dual polarized antenna；
Step 5:GPS signal value A0 is received after decaying of eating dishes without rice or wine, while by Devices to test and standard device in darkroom；
Step 6: Devices to test parsing GPS signal value A0 and the carrier-to-noise ratio CNR0 for being converted into GPS, and by the value with data flow
Form sends ancillary equipment to be measured to, and ancillary equipment to be measured passes through USB data transmission to PC. again
Meanwhile standard device parses GPS signal value A0 and is converted into the carrier-to-noise ratio CNR1 of GPS, and by the value with data flow
Form sends standard ancillary equipment to, and ancillary equipment to be measured passes through USB data transmission to PC again；
Step 7:CNR1 is the return value of standard device, can control signal source for this standard value PC to send out mark corresponding
Quasi- power.PC can calculate adjustment signal source according to the difference of two two values after receiving the two return values of CNR0 and CNR1
Transmission power, and 1 new performance number A1 can be issued；
Step 8: repeating step 3 to step 7, to find out the receptivity limiting value of Devices to test；
Step 9: the method that step 8 is arrived according to step 3, by with standard device as benchmark, with the side of similar difference
Formula more quickly and effectively precisely tests out the receptivity of Devices to test.
Preferably, the GPS signal source is Agilent8960 (built-in GPS module).
Preferably, the ancillary equipment to be measured and the standard ancillary equipment are the Android intelligence with Bluetooth function
It can mobile phone.
Preferably, the duplexer is used to control the direction of the launch of dual polarized antenna.
A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth of the present invention, solves GPS wireless receiving system
The active antenna test of system is the big technical problem of interference, by bluetooth by test data Real-time Feedback, Lai Shixian closed loop test,
Terminal itself interference problem is effectively solved, test is more acurrate, and precision is higher, positioning time faster test effect, and in nothing
Also have the characteristics of reliable transmission, static state lower propagation delay time in line communication, not only available more accurate test result,
Clearly process data can also be obtained, it is convenient that the antenna pattern of antenna is analyzed.
Claims (4)
1. a kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth, characterized by the following steps:
Step 1: establish PC computer, ancillary equipment to be measured, standard ancillary equipment, GPS signal source, dual polarized antenna, duplexer,
Darkroom, Devices to test and standard device, PC computer, ancillary equipment to be measured, standard ancillary equipment, GPS signal source and duplexer
It is set to the outside in darkroom, is equipped with dual polarized antenna, Devices to test and standard device inside darkroom；
Ancillary equipment and standard ancillary equipment to be measured passes through two usb bus and PC compunlcation respectively；
Duplexer and GPS signal source pass through gpib interface and PC compunlcation；
Dual polarized antenna is electrically connected with duplexer；
Step 2: Devices to test and standard device are bluetooth equipment, Devices to test and ancillary equipment Bluetooth pairing to be measured；Standard
Equipment and standard ancillary equipment Bluetooth pairing；
Step 3:PC computer sends test command to GPS signal source, after GPS signal source receives test command, issues GPS signal
Value A0；
Step 4:GPS signal value A0 is sent in darkroom by dual polarized antenna；
Step 5:GPS signal value A0 is received after decaying of eating dishes without rice or wine, while by Devices to test and standard device in darkroom；
Step 6: Devices to test parsing GPS signal value A0 and the carrier-to-noise ratio CNR0 for being converted into GPS, and by the value with data-stream form
Send ancillary equipment to be measured to, ancillary equipment to be measured passes through USB data transmission to PC again；
Meanwhile standard device parses GPS signal value A0 and is converted into the carrier-to-noise ratio CNR1 of GPS, and by the value with data-stream form
Send standard ancillary equipment to, ancillary equipment to be measured passes through USB data transmission to PC again；
Step 7:CNR1 is the return value of standard device, can control signal source for this standard value PC to send out standard function corresponding
Rate；PC understands the transmitting function that adjustment signal source is calculated according to the difference of two values after receiving the two return values of CNR0 and CNR1
Rate, and issue 1 new performance number A1；
Step 8: repeating step 3 to step 7, to find out the receptivity limiting value of Devices to test；
Step 9: the method that step 8 is arrived according to step 3, by, as benchmark, being surveyed with the mode of similar difference with standard device
Try out the receptivity of Devices to test.
2. a kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth as described in claim 1, it is characterised in that: described
GPS signal source is Agilent8960.
3. a kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth as described in claim 1, it is characterised in that: described
Ancillary equipment to be measured and the standard ancillary equipment are the Android intelligent with Bluetooth function.
4. a kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth as described in claim 1, it is characterised in that: described
Duplexer is used to control the direction of the launch of dual polarized antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474874.5A CN109756278A (en) | 2018-12-04 | 2018-12-04 | A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474874.5A CN109756278A (en) | 2018-12-04 | 2018-12-04 | A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109756278A true CN109756278A (en) | 2019-05-14 |
Family
ID=66403539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811474874.5A Pending CN109756278A (en) | 2018-12-04 | 2018-12-04 | A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109756278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115623528A (en) * | 2022-08-31 | 2023-01-17 | 荣耀终端有限公司 | Bluetooth performance test method and related equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336181A (en) * | 2013-05-28 | 2013-10-02 | 惠州Tcl移动通信有限公司 | GPS (global positioning system) OTA (on the air) test method and system |
| CN106597125A (en) * | 2016-11-18 | 2017-04-26 | 广东小天才科技有限公司 | OTA detection method, system and device for intelligent wearable device |
| WO2018126473A1 (en) * | 2017-01-09 | 2018-07-12 | Qualcomm Incorporated | Over-the-air calibration for reciprocity based ul mimo transmission |
-
2018
- 2018-12-04 CN CN201811474874.5A patent/CN109756278A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336181A (en) * | 2013-05-28 | 2013-10-02 | 惠州Tcl移动通信有限公司 | GPS (global positioning system) OTA (on the air) test method and system |
| CN106597125A (en) * | 2016-11-18 | 2017-04-26 | 广东小天才科技有限公司 | OTA detection method, system and device for intelligent wearable device |
| WO2018126473A1 (en) * | 2017-01-09 | 2018-07-12 | Qualcomm Incorporated | Over-the-air calibration for reciprocity based ul mimo transmission |
Non-Patent Citations (1)
| Title |
|---|
| 喻洋: "一种智能终端GPS天线测试方法", 《微波射频网 HTTP://WWW.MWRF.NET/TECH/TM/2016/20257.HTML》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115623528A (en) * | 2022-08-31 | 2023-01-17 | 荣耀终端有限公司 | Bluetooth performance test method and related equipment |
| CN115623528B (en) * | 2022-08-31 | 2023-10-20 | 荣耀终端有限公司 | Bluetooth performance test method and related equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2521282B1 (en) | Method and system for spatial radio-frequency performance testing based on multiple-antenna system | |
| EP2533572B1 (en) | Method and system for testing over the air performances in multi-antenna system | |
| CN103414526B (en) | The test system of a kind of wireless radio frequency index and method of testing | |
| US7925253B2 (en) | Radiated performance of a wireless device | |
| CN107566053A (en) | Method and system for testing radio frequency index and computer readable storage medium | |
| US20130257667A1 (en) | Antenna Tuning | |
| CN103493546B (en) | A system and method for acquiring network data | |
| US8054221B1 (en) | Methods for testing satellite navigation system receivers in wireless electronic devices | |
| CN102135623B (en) | Mobile terminal and calibration method of global positioning system | |
| US9069037B2 (en) | Methods for testing wireless electronic devices using automatic self-test mode | |
| CN105182370A (en) | Beidou equipment inter-module electromagnetic interference test method | |
| US10880021B2 (en) | Wireless communication device and operation method of the same | |
| US20150111507A1 (en) | Millimeter wave conductive setup | |
| CN106464389A (en) | Antenna testing apparatus, system and method, and related device | |
| Jovalekic et al. | LoRa transceiver with improved characteristics | |
| AU2017249006A1 (en) | Enhanced system acquisition for wearables | |
| CN110514907B (en) | Air transmission measuring system for wireless communication device | |
| CN105119664A (en) | Ultra-short wave radio terminal testing device | |
| CN107733450A (en) | RF front-end circuit and mobile terminal device | |
| CN109756278A (en) | A kind of GPS-OTA closed loop test method eated dishes without rice or wine based on bluetooth | |
| US20130260699A1 (en) | Generating test measurement values for automatic calibration using an internal testing load | |
| US20200366390A1 (en) | Method and apparatus for measuring wireless performance of receiver of wireless terminal | |
| CN106093990B (en) | The GPS GNSS system and mobile terminal of mobile terminal | |
| US20230319803A1 (en) | Method for Determining Transmission Frequency and Communication Device | |
| Li et al. | Total isotropic sensitivity measurement in switched beam antenna systems |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 15, Xinghuo Road, Jiangbei new district, Nanjing, Jiangsu 210000 Applicant after: Dongji Technology Co.,Ltd. Address before: 210032 No.15 Xinghuo Road, Jiangbei new district, Nanjing City, Jiangsu Province Applicant before: JIANGSU SEUIC TECHNOLOGY Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190514 |