CN111741154A - Mobile phone radio frequency index testing system - Google Patents
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- CN111741154A CN111741154A CN202010681403.2A CN202010681403A CN111741154A CN 111741154 A CN111741154 A CN 111741154A CN 202010681403 A CN202010681403 A CN 202010681403A CN 111741154 A CN111741154 A CN 111741154A
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- 238000004891 communication Methods 0.000 claims description 18
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Abstract
The invention provides a mobile phone radio frequency index testing system which comprises a personal terminal, a switch control unit, a voltage stabilizing source, a frequency spectrograph, at least one GPIB card and a plurality of band elimination filters of different models, wherein the switch control unit comprises an MCU (microprogrammed control Unit), a first gating switch, a second gating switch, a serial port and a plurality of radio frequency interfaces. According to the mobile phone radio frequency index testing system, the switch control unit is added between the radio frequency module of the mobile phone and the testing instrument, the radio frequency automatic testing software can control each instrument to be freely switched according to the testing requirement through the switch control unit, the system can be used as a fixed testing environment, frequent replacement of cables, instruments and the like is not needed according to different frequency bands, modes and functions supported by the mobile phone, the testing period is shortened, the testing labor cost is reduced, the testing efficiency is improved, and errors are not prone to occurring in the testing process.
Description
Technical Field
The invention relates to the technical field of mobile phone testing, in particular to a mobile phone radio frequency index testing system.
Background
At present, most of mobile phone designs are mobile phones with global frequency bands, so that repeated development can be greatly saved, the volume production cost is reduced, and the mobile phones can be sold in different countries and regions, but one problem is that the complexity of mobile phone testing is greatly increased, the frequency bands are different, the modes are different, the requirements on indexes are also different, frequent line changing and line calibration are needed during testing, corresponding instruments are needed to be replaced, particularly, when stray indexes are tested, band elimination filters of the corresponding frequency bands need to be replaced, the number is large, the testing efficiency is extremely low, and mistakes are very easy to occur.
Disclosure of Invention
In view of this, the present invention provides a mobile phone radio frequency index testing system to solve the problems of low testing efficiency and easy error in the traditional mobile phone radio frequency index testing system for testing stray indexes.
The technical scheme of the invention is realized as follows: the utility model provides a cell-phone radio frequency index test system, includes personal terminal, on-off control unit, steady voltage source, spectrometer, at least one GPIB card and a plurality of band elimination filters of different models, on-off control unit includes MCU, first gate switch, second gate switch, serial ports and a plurality of radio frequency interface, wherein:
the output end of the voltage stabilizing source is connected with the power supply end of the mobile phone and used for supplying power to the mobile phone;
a plurality of radio frequency modules of the mobile phone are respectively connected with a plurality of input channels of the first gating switch in a one-to-one correspondence mode through a plurality of radio frequency interfaces, a single output channel of the first gating switch is connected with a single input channel of the second gating switch, a plurality of output channels of the second gating switch are respectively connected with input ends of a plurality of band-stop filters in a one-to-one correspondence mode through a plurality of radio frequency interfaces, and output ends of the plurality of band-stop filters are connected with input ends of the frequency spectrograph;
the personal terminal is internally provided with radio frequency automatic test software and is in communication connection with the MCU through the serial port and the frequency spectrograph through the GPIB card;
the MCU is respectively in communication connection with the first gating switch and the second gating switch and is used for controlling the first gating switch to select one path from a plurality of input channels for input and controlling the second gating switch to select one path from a plurality of output channels for output.
Optionally, the switch control unit further includes a third gating switch, the output ends of the plurality of band-stop filters are connected to the plurality of input channels of the third gating switch in a one-to-one correspondence manner through the plurality of radio frequency interfaces, a single output channel of the third gating switch is connected to the input end of the spectrometer through the radio frequency interface, the MCU is further connected to the third gating switch in a communication manner, and the MCU is further configured to control the third gating switch to select one of the plurality of input channels for input.
Optionally, the personal terminal is further in communication connection with the voltage regulator through the GPIB card, and the personal terminal is further configured to control the voltage regulator to supply power or stop supplying power.
Optionally, the personal terminal is further configured to control the voltage of the output voltage of the voltage regulator according to a test item requirement of the radio frequency automation test software.
Optionally, the mobile phone radio frequency index test system still includes the comprehensive tester of a plurality of different models, the switch control unit still includes fourth gating switch, the single output channel of first gating switch still with the single input channel of fourth gating switch links to each other, a plurality of output channels of fourth gating switch are through a plurality of radio frequency interface respectively with a plurality of the input one-to-one of comprehensive tester links to each other, personal terminal still passes through the GPIB card is with a plurality of comprehensive tester communication connection, MCU still with fourth gating switch communication connection, MCU still is used for control fourth gating switch selects one way to export from a plurality of output channels.
Optionally, the personal terminal is further configured to control the voltage regulator to stop supplying power first and then resume supplying power after the registration connection between the mobile phone and the comprehensive tester fails.
Optionally, the step of controlling the voltage regulator to stop supplying power and then resume supplying power after the registration connection between the mobile phone and the comprehensive tester fails by the personal terminal includes:
the radio frequency automatic test software detects the registration connection state of the mobile phone and the comprehensive tester;
if the radio frequency automatic test software detects that the registration connection between the mobile phone and the comprehensive tester fails, controlling the voltage stabilizing source to stop outputting;
the radio frequency automatic test software controls the voltage stabilizing source to start outputting power supply;
the mobile phone searches the network again and is connected with the comprehensive tester in a registered manner;
the radio frequency automatic test software detects the registration connection state of the mobile phone and the comprehensive tester again;
and if the registration connection between the mobile phone and the comprehensive tester is successful, controlling the voltage stabilizing source to continue supplying power.
Optionally, after the radio frequency automated testing software detects the registration connection state of the mobile phone and the comprehensive tester again, the step of the personal terminal controlling the voltage regulator to stop supplying power first and then resume supplying power after the registration connection of the mobile phone and the comprehensive tester fails further includes:
if the registration connection between the mobile phone and the comprehensive tester fails, controlling the voltage stabilizing source to continue supplying power and resetting the comprehensive tester according to the requirement of the test item;
and the mobile phone searches the network again and is connected with the comprehensive tester in a registered manner.
Optionally, the switch control unit further includes a power divider, an input end of the power divider is connected to the single output channel of the first gating switch, and two output ends of the power divider are respectively connected to the single input channel of the second gating switch and the single input channel of the fourth gating switch.
Compared with the prior art, the mobile phone radio frequency index testing system has the following beneficial effects:
(1) according to the mobile phone radio frequency index testing system, the switch control unit is added between the radio frequency module of the mobile phone and the testing instrument, radio frequency automatic testing software can control each instrument to be freely switched according to testing requirements through the switch control unit, the system can serve as a fixed testing environment, frequent replacement of cables, instruments and the like is not needed according to different frequency bands, modes and functions supported by the mobile phone, the testing period is shortened, the testing labor cost is reduced, the testing efficiency is improved, and errors are not prone to occurring in the testing process;
(2) according to the mobile phone radio frequency index testing system, the third gating switch is added between the output ends of the band elimination filters of different types and the frequency spectrograph, so that disconnection between the band elimination filter which is not connected and the frequency spectrograph is ensured, interference of the band elimination filter which is not connected to the frequency spectrograph can be avoided, distortion of a testing result of the frequency spectrograph is avoided, and reliability of the testing result of the frequency spectrograph is improved;
(3) the mobile phone radio frequency index testing system can control the mobile phone and the comprehensive tester to perform secondary registration connection by controlling the output of the voltage stabilizing source after the primary registration connection between the mobile phone and the comprehensive tester fails, and can acquire the reason of the primary registration connection failure according to the result of the secondary registration connection, so that the problem of the registration connection failure is solved in time, and the normal operation of mobile phone testing is ensured;
(4) the mobile phone radio frequency index testing system is characterized in that the power dividers are connected between the second gating switch, the fourth gating switch and the first gating switch, different types of power dividers can be selected according to testing requirements, the power of radio frequency signals input into the comprehensive testing instrument and the band elimination filter can be distributed according to the index requirements of a mobile phone, the power of two paths of radio frequency signals is controllable, and the reliability of mobile phone index testing results is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a mobile phone radio frequency index testing system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the mobile phone radio frequency index testing system of this embodiment includes a personal terminal, a switch control unit, a voltage regulator, a spectrometer, at least one GPIB card, and a plurality of band-stop filters of different models, where the switch control unit includes an MCU, a first gating switch, a second gating switch, a serial port, and a plurality of radio frequency interfaces, where: the output end of the voltage stabilizing source is connected with the power supply end of the mobile phone and used for supplying power to the mobile phone; a plurality of radio frequency modules of the mobile phone are respectively connected with a plurality of input channels of the first gating switch in a one-to-one correspondence mode through a plurality of radio frequency interfaces, a single output channel of the first gating switch is connected with a single input channel of the second gating switch, a plurality of output channels of the second gating switch are respectively connected with input ends of a plurality of band-stop filters in a one-to-one correspondence mode through a plurality of radio frequency interfaces, and output ends of the plurality of band-stop filters are connected with input ends of the frequency spectrograph; the personal terminal is internally provided with radio frequency automatic test software and is in communication connection with the MCU through the serial port and the frequency spectrograph through the GPIB card; the MCU is respectively in communication connection with the first gating switch and the second gating switch and is used for controlling the first gating switch to select one path from a plurality of input channels for input and controlling the second gating switch to select one path from a plurality of output channels for output.
As shown in fig. 1, the switch control unit further includes a third gating switch, the output ends of the band-stop filters are respectively connected to the input channels of the third gating switch in a one-to-one correspondence manner through the radio frequency interfaces, a single output channel of the third gating switch is connected to the input end of the spectrometer through the radio frequency interface, the MCU is further connected to the third gating switch in a communication manner, and the MCU is further configured to control the third gating switch to select one of the input channels for input.
As shown in fig. 1, the mobile phone radio frequency index testing system further includes a plurality of integrated testers of different models, the switch control unit further includes a fourth gating switch, a single output channel of the first gating switch is further connected with a single input channel of the fourth gating switch, a plurality of output channels of the fourth gating switch are multiple, the radio frequency interface is respectively connected with a plurality of input ends of the integrated testers in a one-to-one correspondence manner, the personal terminal is further connected with a plurality of integrated testers through the GPIB card, the MCU is further connected with the fourth gating switch in a communication manner, and the MCU is further configured to control the fourth gating switch to select one of the plurality of output channels for output.
As shown in fig. 1, the switch control unit further includes a power divider, an input end of the power divider is connected to the single output channel of the first gating switch, and two output ends of the power divider are respectively connected to the single input channel of the second gating switch and the single input channel of the fourth gating switch.
In this embodiment, the personal terminal may be a computer, and the radio frequency automated testing software may communicate with instruments such as a spectrometer and a comprehensive tester via a GPIB card, control the operating states of the instruments, automatically set the instruments according to the selected test items, and read the test results from the instruments and write the test results into the test record table. The comprehensive testing instrument is configured according to options supported by the instrument, the band elimination filter is used for testing related stray and is selected according to a frequency band supported by a mobile phone, and the MCU is mainly used for communicating with a computer through a serial port, receiving a switch control command sent by radio frequency automatic testing software and controlling the state of each gating switch after analysis. The radio frequency module of the mobile phone comprises a main set, a diversity unit, a GPS unit, a Bluetooth WiFi unit and other radio frequency units, and the first gating switch, the second gating switch, the third gating switch and the fourth gating switch can be single-pole multi-throw switches. After the radio frequency automatic test software issues a switch control command, if the mobile phone master set is tested, the MCU can control the input channel connected with the first gating switch and the master set to be conducted; if the band-stop filter 1 is used for testing, the MCU can control the conduction of an output channel connected with the second gating switch and the band-stop filter 1 and control the conduction of an input channel connected with the third gating switch and the band-stop filter 1; if the comprehensive tester 1 is used for testing, the MCU can control the conduction of the output channel of the fourth gating switch connected to the comprehensive tester 1. By analogy, the selection can be carried out according to the specific test requirements.
The application process of the mobile phone radio frequency index testing system in the embodiment is as follows:
firstly, opening radio frequency automatic test software installed in a computer, checking corresponding test items according to index requirements of a mobile phone to be tested, importing a path line loss table, and generating a test record table of the item to be tested; the radio frequency automatic test software establishes communication relation with the instrument, the voltage stabilizing source and the switch control unit, the instrument is initialized after success, the single board of the mobile phone is electrified, a command is sent to the switch control unit according to a test item, the switch control unit opens a corresponding switch to control the instrument to carry out related setting, the voltage stabilizing source outputs power supply voltage, the mobile phone is electrified to start searching for a network, the test is started after the successful connection, and the data of the read instrument is written into the test record table.
As shown in fig. 1, the personal terminal is further in communication connection with the voltage regulator through the GPIB card, and the personal terminal is further configured to control the voltage regulator to supply power or stop supplying power. Generally, the selectable voltage stabilizing source can be used for supplying power autonomously, namely, the selectable voltage stabilizing source is not connected with a computer, so that the voltage stabilizing source needs to be manually controlled to be started and stopped.
Therefore, the switch control unit is added between the radio frequency module of the mobile phone and the test instrument, the radio frequency automatic test software can control each instrument to be freely switched according to test requirements through the switch control unit, the system can serve as a fixed test environment, frequent replacement of cables, instruments and the like is not needed according to different frequency bands, modes and functions supported by the mobile phone, the test period is shortened, the labor cost of testing is reduced, the test efficiency is improved, and errors are not prone to occurring in the test process.
In the embodiment, the output ends of the band-stop filters of different types can be selected to be directly connected with the signal input end of the frequency spectrograph, so that after one band-stop filter is selected for testing, because the output ends of all the band-stop filters are connected with the frequency spectrograph, the unconnected band-stop filter can generate interference signals to be input into the frequency spectrograph, and the distortion of the test result of the frequency spectrograph is caused. The third gating switch can be added between the output ends of the band-stop filters of different types and the frequency spectrograph, so that disconnection between the band-stop filter which is not connected and the frequency spectrograph is ensured, interference of the band-stop filter which is not connected to the frequency spectrograph can be avoided, distortion of a test result of the frequency spectrograph is avoided, and reliability of the test result of the frequency spectrograph is improved.
In this embodiment, the second and fourth gating switches may be directly connected to the first gating switch, and when the integrated tester is used to test and test the stray targets at the same time, the radio frequency signal output by the first gating switch may be divided into two paths of signals, and the power of the two paths of signals is uncontrollable, which may cause unreliable test results of the mobile phone. In the embodiment, the power divider can be preferably connected between the second gating switch, the fourth gating switch and the first gating switch, different types of power dividers can be selected according to test requirements, for example, one divider and two dividers can ensure that the power of the radio-frequency signals input into the comprehensive tester and the band-stop filter is distributed according to the index requirements of the mobile phone, the power of the two radio-frequency signals is controllable, and the reliability of the index test result of the mobile phone is improved.
Optionally, the personal terminal is further configured to control the voltage of the output voltage of the voltage regulator according to a test item requirement of the radio frequency automation test software. Under some test scenes, the test items have requirements on the power supply voltage of the mobile phone, the personal terminal of the embodiment can control the output voltage of the voltage stabilizing source according to the test item requirements of the radio frequency automatic test software, can meet the test scenes with special requirements on the power supply voltage of the mobile phone, and has more comprehensive functions.
Optionally, the personal terminal is further configured to control the voltage regulator to stop supplying power first and then resume supplying power after the registration connection between the mobile phone and the comprehensive tester fails. When the mobile phone is tested, the condition that the registration connection between the mobile phone and the comprehensive tester fails may occur, and the personal terminal of the embodiment can control the voltage stabilizing source to stop supplying power first and then resume supplying power after the registration connection between the mobile phone and the comprehensive tester fails, so that the mobile phone can be restarted, network searching, registering and testing are performed again until the test item is completed, and a test report is automatically generated and stored in a designated folder.
Optionally, the step of controlling the voltage regulator to stop supplying power and then resume supplying power after the registration connection between the mobile phone and the comprehensive tester fails by the personal terminal includes:
the radio frequency automatic test software detects the registration connection state of the mobile phone and the comprehensive tester;
if the radio frequency automatic test software detects that the registration connection between the mobile phone and the comprehensive tester fails, controlling the voltage stabilizing source to stop outputting;
the radio frequency automatic test software controls the voltage stabilizing source to start outputting power supply;
the mobile phone searches the network again and is connected with the comprehensive tester in a registered manner;
the radio frequency automatic test software detects the registration connection state of the mobile phone and the comprehensive tester again;
and if the registration connection between the mobile phone and the comprehensive tester is successful, controlling the voltage stabilizing source to continue supplying power.
In this embodiment, if the registration connection between the mobile phone and the comprehensive tester fails, the problem of the mobile phone setting is considered first, the mobile phone is restarted by disconnecting the power supply of the mobile phone and the network is searched again for registration, the mobile phone can be reconnected after the connection failure due to the problem of the mobile phone setting occurs, and if the reconnection succeeds, the initial connection failure is proved to be the reason of the mobile phone setting.
Optionally, after the radio frequency automated testing software detects the registration connection state of the mobile phone and the comprehensive tester again, the step of the personal terminal controlling the voltage regulator to stop supplying power first and then resume supplying power after the registration connection of the mobile phone and the comprehensive tester fails further includes:
if the registration connection between the mobile phone and the comprehensive tester fails, controlling the voltage stabilizing source to continue supplying power and resetting the comprehensive tester according to the requirement of the test item;
and the mobile phone searches the network again and is connected with the comprehensive tester in a registered manner.
The reconnection results of the mobile phone and the comprehensive tester are two, success or failure, wherein the success represents that the initial connection failure is the reason for setting the mobile phone, and the failure indicates that the initial connection failure is most probably the problem of setting the parameters of the comprehensive tester. The embodiment can determine the reason of the primary connection failure after the secondary registration connection failure of the mobile phone and the comprehensive tester, and keep the normal power supply of the mobile phone, and the mobile phone can be automatically networked and registered after the comprehensive tester is reset.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a cell-phone radio frequency index test system, its characterized in that includes personal terminal, on-off control unit, steady voltage source, spectrometer, at least one GPIB card and a plurality of band elimination filter of different models, on-off control unit includes MCU, first gate switch, second gate switch, serial ports and a plurality of radio frequency interface, wherein:
the output end of the voltage stabilizing source is connected with the power supply end of the mobile phone and used for supplying power to the mobile phone;
a plurality of radio frequency modules of the mobile phone are respectively connected with a plurality of input channels of the first gating switch in a one-to-one correspondence mode through a plurality of radio frequency interfaces, a single output channel of the first gating switch is connected with a single input channel of the second gating switch, a plurality of output channels of the second gating switch are respectively connected with input ends of a plurality of band-stop filters in a one-to-one correspondence mode through a plurality of radio frequency interfaces, and output ends of the plurality of band-stop filters are connected with input ends of the frequency spectrograph;
the personal terminal is internally provided with radio frequency automatic test software and is in communication connection with the MCU through the serial port and the frequency spectrograph through the GPIB card;
the MCU is respectively in communication connection with the first gating switch and the second gating switch and is used for controlling the first gating switch to select one path from a plurality of input channels for input and controlling the second gating switch to select one path from a plurality of output channels for output.
2. The mobile phone radio frequency index testing system of claim 1, wherein the switch control unit further comprises a third gating switch, output ends of the plurality of band elimination filters are respectively connected with a plurality of input channels of the third gating switch in a one-to-one correspondence manner through a plurality of radio frequency interfaces, a single output channel of the third gating switch is connected with an input end of the spectrometer through the radio frequency interface, the MCU is further in communication connection with the third gating switch, and the MCU is further configured to control the third gating switch to select one of the plurality of input channels for input.
3. The system for testing radio frequency indexes of mobile phones according to claim 1, wherein said personal terminal is further in communication connection with said voltage regulator through said GPIB card, and said personal terminal is further configured to control said voltage regulator to supply power or stop supplying power.
4. The system for testing radio frequency indexes of mobile phones according to claim 2, wherein the personal terminal is further configured to control the level of the output voltage of the voltage regulator according to the test item requirements of the radio frequency automation test software.
5. The system for testing radio frequency indexes of mobile phones according to claim 3, further comprising a plurality of integrated test instruments of different models, wherein the switch control unit further comprises a fourth gating switch, the single output channel of the first gating switch is further connected with the single input channel of the fourth gating switch, the plurality of output channels of the fourth gating switch are respectively connected with the plurality of input ends of the integrated test instruments in a one-to-one correspondence manner through the plurality of radio frequency interfaces, the personal terminal is further connected with the plurality of integrated test instruments in a communication manner through the GPIB card, the MCU is further connected with the fourth gating switch in a communication manner, and the MCU is further configured to control the fourth gating switch to select one of the plurality of output channels for output.
6. The system for testing radio frequency indexes of mobile phones according to claim 5, wherein the personal terminal is further configured to control the voltage regulator to stop supplying power first and then resume supplying power after the registration connection between the mobile phone and the integrated tester fails.
7. The system for testing radio frequency indexes of mobile phones according to claim 6, wherein the step of controlling the voltage regulator source to stop supplying power and then resume supplying power after the registration connection between the mobile phone and the comprehensive tester fails comprises:
the radio frequency automatic test software detects the registration connection state of the mobile phone and the comprehensive tester;
if the radio frequency automatic test software detects that the registration connection between the mobile phone and the comprehensive tester fails, controlling the voltage stabilizing source to stop outputting;
the radio frequency automatic test software controls the voltage stabilizing source to start outputting power supply;
the mobile phone searches the network again and is connected with the comprehensive tester in a registered manner;
the radio frequency automatic test software detects the registration connection state of the mobile phone and the comprehensive tester again;
and if the registration connection between the mobile phone and the comprehensive tester is successful, controlling the voltage stabilizing source to continue supplying power.
8. The system for testing radio frequency indexes of mobile phones according to claim 7, wherein after the radio frequency automation test software detects the registration connection status of the mobile phone and the integrated tester again, the step of the personal terminal controlling the voltage regulator to stop supplying power first and then resume supplying power after the registration connection of the mobile phone and the integrated tester fails further comprises:
if the registration connection between the mobile phone and the comprehensive tester fails, controlling the voltage stabilizing source to continue supplying power and resetting the comprehensive tester according to the requirement of the test item;
and the mobile phone searches the network again and is connected with the comprehensive tester in a registered manner.
9. The system for testing radio frequency indexes of mobile phones according to claim 5, wherein the switch control unit further comprises a power divider, an input end of the power divider is connected to the single output channel of the first gating switch, and two output ends of the power divider are respectively connected to the single input channel of the second gating switch and the single input channel of the fourth gating switch.
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| CN206850777U (en) * | 2017-06-30 | 2018-01-05 | 北京世纪德辰通信技术有限公司 | A kind of multi-standard public mobile communication terminal radio frequency consistency parallel testing device |
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Application publication date: 20201002 |