CN106357352B - Wireless radio frequency modules performance test methods and device - Google Patents
Wireless radio frequency modules performance test methods and device Download PDFInfo
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- CN106357352B CN106357352B CN201610742143.9A CN201610742143A CN106357352B CN 106357352 B CN106357352 B CN 106357352B CN 201610742143 A CN201610742143 A CN 201610742143A CN 106357352 B CN106357352 B CN 106357352B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
- H04B17/18—Monitoring during normal operation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/23—Indication means, e.g. displays, alarms, audible means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Wireless radio frequency modules performance test methods and device provided in an embodiment of the present invention receive test instruction by master control set, and instructing control signal source to send output power signal to attenuator according to test, attenuator is adjusted output power signal and sends it to wireless radio frequency modules.Wireless radio frequency modules receive the above-mentioned output power signal through overregulating, and are sent to oscillograph after being demodulated, so that oscillograph can show waveform corresponding with above-mentioned power；The wireless radio frequency modules output power signal overregulated of also expounding doctrines and experiences issues comprehensive test instrument, and when the waveform shown in oscillograph is without drift and burr, comprehensive test instrument shows the minimal power values of above-mentioned power.Master control set, signal source, attenuator, oscillograph and comprehensive test instrument constitute the test device of an entirety, when so as to avoid detecting wireless radio frequency modules, needing frequently to connect the cumbersome of equipment, being conducive to the production efficiency for improving wireless radio frequency modules.
Description
Technical field
The present invention relates to circuit device fields, in particular to a kind of wireless radio frequency modules performance test methods and dress
It sets.
Background technique
LORA technology uses spread spectrum technic, which can effectively resist interference and realize encryption, can obtain such as
Lower income: the acquired immunity from various types of noises and multipath distortion obtains the gain of signal-to-noise ratio, and anti-interference is stronger,
Communication distance is farther.
The existing mode to LORA wireless radio frequency modules performance test is referring to Figure 1 and Fig. 2.Fig. 1 is to less radio-frequency
The structural block diagram that the transmission power of module is tested, by the center frequency point of frequency spectrograph or comprehensive test instrument setting to need frequency to be tested
Gas meter, flow meter antenna port is connect, conducting direct current power supply or battery by point with frequency spectrograph or comprehensive test instrument, and wireless radio frequency modules send defeated
Power to frequency spectrograph or comprehensive test instrument, user obtains related to the output power of wireless radio frequency modules from frequency spectrograph or comprehensive test instrument out
Parameter.
Fig. 2 is the structural block diagram tested the reception power of wireless radio frequency modules, and wireless radio frequency modules are received
Power, and oscillograph and comprehensive test instrument are sent respectively by power is received, according to the waveform shown in oscillograph, record shown in comprehensive test instrument
Receive the minimum power of power.
The existing method being tested for the property to wireless radio frequency modules needs frequent connection power supply, voltmeter, electric current
The equipment such as detector, oscillograph and comprehensive test instrument, detection process is relatively complicated, and efficiency is lower, is unfavorable for improving production efficiency.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of wireless radio frequency modules performance test methods and device, to improve
Existing test method detection process is relatively complicated, and efficiency is lower, is unfavorable for the problem of improving production efficiency.
To achieve the above object, the embodiment of the invention provides a kind of wireless radio frequency modules performance test methods, the sides
Method includes: that master control set receives the first test instruction, and is instructed according to first test, and control signal source sends signal output
Power is to attenuator；Output power signal is adjusted in the attenuator, and the output power signal through overregulating is sent
To wireless radio frequency modules, the output power signal through overregulating is denoted as the first output power；The wireless radio frequency modules connect
First output power is received, and oscillograph will be sent to after first output power demodulation, so that the oscillograph exports
The corresponding waveform of first output power；First output power is also sent to comprehensive test instrument by the wireless radio frequency modules,
So that when the waveform shown in the oscillograph is without drift and burr, user obtains first output power from the comprehensive test instrument
Minimal power values.
The embodiment of the invention also provides a kind of wireless radio frequency modules performance testing devices, match with wireless radio frequency modules
Close, described device includes master control set, signal source, attenuator, oscillograph and comprehensive test instrument, the master control set respectively with it is described
Signal source and wireless radio frequency modules are connected, and the attenuator is connected with the signal source and wireless radio frequency modules respectively
It connects, the wireless radio frequency modules are connected with the oscillograph and comprehensive test instrument respectively, and master control set is for receiving the first test
Instruction, and instructed according to first test, control signal source sends output power signal to attenuator；The attenuator is used for
Output power signal is adjusted, and the output power signal through overregulating is sent to wireless radio frequency modules, the process
The output power signal of adjusting is denoted as the first output power；The wireless radio frequency modules are used to receive first output power,
And it will be sent to oscillograph after first output power demodulation, so that the oscillograph exports first output power and corresponds to
Waveform；The wireless radio frequency modules are also used to first output power being sent to comprehensive test instrument, to work as the oscillograph
When the waveform shown is without drifting about with burr, user obtains the minimal power values of first output power from the comprehensive test instrument.
Wireless radio frequency modules performance test methods and device provided in an embodiment of the present invention have the beneficial effect that
Wireless radio frequency modules performance test methods and device provided in an embodiment of the present invention are received by master control set and are tested
Instruction, and instruct control signal source to send output power signal to attenuator according to test, attenuator to output power signal into
Row adjusts and sends it to wireless radio frequency modules.Wireless radio frequency modules receive the above-mentioned output power signal through overregulating, and
Oscillograph is sent to after being demodulated, so that oscillograph can show waveform corresponding with above-mentioned power；Wireless radio frequency modules
The output power signal overregulated of also expounding doctrines and experiences issues comprehensive test instrument, when the waveform shown in oscillograph is without drift and burr, comprehensive test instrument
The minimal power values of above-mentioned power are shown.Master control set, signal source, attenuator, oscillograph and comprehensive test instrument constitute an entirety
Test device, when so as to avoid being detected to wireless radio frequency modules, need frequently connect equipment it is cumbersome, be conducive to mention
The production efficiency of high wireless radio frequency modules.
Detailed description of the invention
Illustrate the embodiment of the present invention or technical solution in the prior art in order to clearer, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural block diagram that the existing transmission power to wireless radio frequency modules is tested；
Fig. 2 is the structural block diagram that the existing reception power to wireless radio frequency modules is tested；
Fig. 3 is the flow chart of wireless radio frequency modules performance test methods provided in an embodiment of the present invention；
Fig. 4 is a kind of stream of specific embodiment of wireless radio frequency modules performance test methods provided in an embodiment of the present invention
Cheng Tu；
Fig. 5 is the structural block diagram of wireless radio frequency modules performance testing device provided in an embodiment of the present invention；
Fig. 6 is a kind of knot of specific embodiment of wireless radio frequency modules performance testing device provided in an embodiment of the present invention
Structure block diagram.
Appended drawing reference:
Wireless radio frequency modules performance testing device 100；Master control set 110；Signal source 120；
Attenuator 130；First fixed attenuator 131；Second fixed attenuator 132；Adjustable attenuator 133；
Oscillograph 140；Comprehensive test instrument 150；
Current sampler 160；Current sampling resistor 161；ADC sampler 162
Power supply 170；Display 180；Power receiver 190；Frequency spectrograph 191；Wireless radio frequency modules 200；Key 300.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is right below
The detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit the range of claimed invention, but
It is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not making creativeness
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of labour.
Embodiment
Fig. 3 shows the flow chart of wireless radio frequency modules performance test methods provided in an embodiment of the present invention, specifically includes
Following steps S101 to step S104:
Step S101, master control set receives the first test instruction, and is instructed according to first test, control signal source hair
Send output power signal to attenuator.
First test instruction is specifically as follows reception test instruction can after that is, master control set receives the first test instruction
Output power signal is sent to attenuator to control signal source.
Before step S101, GFSK Gaussian Frequency Shift Keying (Gauss frequency can also be written in wireless radio frequency modules
Shift Keying, GFSK) program, the modulation of GFSK GFSK Gaussian Frequency Shift Keying is input data through gauss low frequency filter premodulated
After filtering, then carry out the digital modulation mode of FSK shift keying modulation.It, can be by changing while keeping constant amplitude
The loan for becoming gauss low frequency filter controls the frequency spectrum of modulated signal, there is permanent width envelope, power spectrum to concentrate, frequency spectrum compared with
Characteristic required for narrow equal wireless communication systems.
The modulation of GFSK GFSK Gaussian Frequency Shift Keying is one kind of modulated signal mode, can also carry out signal in other way
Modulation, it is limitation of the present invention that the specific method of modulation, which should not be construed,.
Output power signal is adjusted in step S102, the attenuator, and by the output power signal through overregulating
Wireless radio frequency modules are sent to, the output power signal through overregulating is denoted as the first output power.
The model of signal source is specifically as follows SX1276 radio-frequency signal source, the output power range of SX1276 radio-frequency signal source
It can be -1dBm to 20dBm, after attenuator is adjusted, output power range can be -130dBm to -70dBm.
Attenuator can specifically include the first fixed attenuator, the second fixed attenuator and adjustable attenuator, adjustable to decline
The gain adjustment range for subtracting device is 0 to 62dB, can according to need, selects the gain of adjustable attenuator, improves the first output work
The precision of the amplitude of rate.
After the amplitude of output power signal is adjusted in attenuator, the output power signal through overregulating is sent to nothing
Line radio-frequency module, the above-mentioned output power signal through overregulating can be denoted as the first output power.
Wireless radio frequency modules specifically can receive the first output power and continue to transmit by the first output power, according to transmitting
Result detect the performances of wireless radio frequency modules.
Step S103, the wireless radio frequency modules receive first output power, and by the first output power solution
Oscillograph is sent to after tune, so that the oscillograph exports the corresponding waveform of first output power.
Wireless radio frequency modules can demodulate the first output power, and the first output power after demodulation is sent to
Oscillograph, oscillograph receive the first demodulated output power and show the corresponding waveform of the first output power.
First output power is also sent to comprehensive test instrument by step S104, the wireless radio frequency modules, so as to when described
Without drift and when burr, user obtains the minimum power of first output power from the comprehensive test instrument for waveform shown in oscillograph
Value.
First output power can also be sent to comprehensive test instrument by wireless radio frequency modules, and comprehensive test instrument can obtain the first output work
The minimal power values of rate.Specifically, in the waveform of the first output power shown in oscillograph without drift and when burr, user can be with
The minimal power values of the first output power are obtained from comprehensive test instrument.
First output power is specially the reception power of wireless radio frequency modules, and the minimal power values of the first output power are
Receive the minimal power values of power, that is, receiving sensitivity.
Details refer to Fig. 4, and Fig. 4 shows the one of wireless radio frequency modules performance test methods provided in an embodiment of the present invention
Kind specific embodiment, includes the following steps S201 to step S217:
Step S201, whether master control set receives the first test instruction, if so, executing step S202；If it is not, executing step
S209。
Since wireless radio frequency modules are can be only within the same period in receiving state signal or transmitting signal condition
A kind of state, therefore can first obtain whether master control set receives test instruction or receive which kind of test instruction.When master control fills
It sets when receiving the first test instruction, this means that wireless radio frequency modules be in receiving state signal, execution step S202.
First test instruction can specifically be issued by key, i.e., user presses corresponding key to which the first test of triggering refers to
It enables.
Step S202, master control set are instructed according to first test, and control signal source sends output power signal to declining
Subtract device.
Output power signal is adjusted in step S203, the attenuator, and by the output power signal through overregulating
Wireless radio frequency modules are sent to, the output power signal through overregulating is denoted as the first output power.
Step S204, the wireless radio frequency modules receive first output power, and by the first output power solution
Oscillograph is sent to after tune, so that the oscillograph exports the corresponding waveform of first output power.
First output power is also sent to comprehensive test instrument by step S205, the wireless radio frequency modules, so as to when described
Without drift and when burr, user obtains the minimum power of first output power from the comprehensive test instrument for waveform shown in oscillograph
Value.
Step S202 to step S205 and the step S101 to step S104 shown in Fig. 3 are corresponding identical, just do not do herein superfluous
It states.
Step S206, the first output electric current that current sampler is supplied to the wireless radio frequency modules to power supply are adopted
Sample, the first output electric current that sampling is obtained are sent to the master control set.
While measuring the minimal power values of the first output power, current sampler is supplied to less radio-frequency mould to power supply
First output electric current of block is sampled, and the first output electric current that sampling is obtained is sent to master control set, so that master control
Device handles the first output electric current.
Current sampler can specifically include current sampling resistor and ADC sampler, and current sampling resistor is used for the
One output electric current is sampled, and the electric current that ADC sampler is used to obtain current sampling resistor is AD converted, and will be after conversion
The value of acquisition is sent to master control set.
Step S207, the master control set receive and process the first output electric current, to obtain the first output electricity
The current value of stream, and the current value of the first output electric current is sent to display so that the display shows described first
Export the current value of electric current.
Master control set receives the first output electric current, and handles the first output electric current, obtains the first output electric current
The current value of first output electric current is sent to display, so that display shows the first output electric current by specific current value
Current value.The first output electric current can be denoted as reception electric current.
Step S208, the master control set receive first frequency adjustment instruction, and according to the first frequency adjustment instruction,
Adjust the frequency for the output power signal that the signal source is sent.
Master control set is specifically also used to receive first frequency adjustment instruction, and first frequency adjustment instruction specifically can be by first
Frequency adjusts key and issues.First frequency adjustment key can specifically include two, and one for increasing by first output work
The frequency of rate, one for reducing the frequency of the first output power.Master control set can be according to the tool of first frequency adjustment instruction
Hold the frequency for increaseing or decreasing the first output power in vivo.
Step S209, whether master control set receives the second test instruction, if so, executing step S210；If it is not, executing step
S215。
If master control set does not receive the first test instruction, further judge whether master control set receives the second test and refer to
It enables, when master control set receives the second test instruction, this means that wireless radio frequency modules are in transmitting signal condition, executes step
Rapid S210.
Second test instruction can specifically be issued by key, i.e., user presses corresponding key to which the second test of triggering refers to
It enables.
Step S210, the master control set are instructed according to second test, are controlled the wireless radio frequency modules and are sent the
Two output powers are to power receiver.
Master control set controls wireless radio frequency modules and sends the second output power to power receiver, to test less radio-frequency
Module is in the performance of transmitting signal condition.Power receiver may include frequency spectrograph or comprehensive test instrument.
Step S211, the power receiver receive and show the second output power that the wireless radio frequency modules are sent.
Power receiver can specifically include frequency spectrograph, wherein center frequency point can be arranged before measuring for frequency spectrograph
It is specifically as follows 476.0078MHz or 488.0078MHz to a scheduled value, such as center frequency point.Frequency spectrograph can obtain
The deviant of the frequency of the frequency and center frequency point of the value of second output power and the second output power.
For example, the frequency values of center frequency point are F0, the value of the second output power of actual measurement is F1, then above-mentioned offset
Value are as follows: F0-F1.
Second output power is specially the transmission power of wireless radio frequency modules, the frequency and center frequency point of the second output power
Frequency deviant be frequency shift (FS).
Step S212, the second output electric current that current sampler is supplied to the wireless radio frequency modules to power supply are adopted
Sample, and the second output electric current that sampling is obtained is sent to the master control set.
In the deviant of the frequency of the frequency and center frequency point for the value and the second output power for measuring the second output power
While, the second output electric current that current sampler is supplied to wireless radio frequency modules to power supply samples, and sampling is obtained
The the second output electric current obtained is sent to master control set, so that master control set handles the second output electric current.
Step S213, the master control set receive and process the second output electric current, to obtain the second output electricity
The current value of stream, and the current value of the second output electric current is sent to display so that the display shows described second
Export the current value of electric current.
Master control set receives the second output electric current, and handles the second output electric current, obtains the second output electric current
The current value of second output electric current is sent to display, so that display shows the second output electric current by specific current value
Current value.The second output electric current can be denoted as emission current.
Step S214, the master control set receive second frequency adjustment instruction, and according to the second frequency adjustment instruction,
Adjust the frequency for the second output power that the wireless radio frequency modules are sent.
Master control set is specifically also used to receive second frequency adjustment instruction, and second frequency adjustment instruction specifically can be by second
Frequency adjusts key and issues.Second frequency adjustment key can specifically include two, and one for increasing by second output work
The frequency of rate, one is used to reduce the frequency of the second output power, and master control set can be according to the tool of second frequency adjustment instruction
Hold the frequency for increaseing or decreasing the second output power in vivo.
Step S215, the wireless radio frequency modules are in a dormant state.
When master control set had not both received the first test instruction, did not received the second test instruction yet, less radio-frequency mould
Block is in a dormant state.
Step S216, when the wireless radio frequency modules in a dormant state when, the current sampler mentions the power supply
The third output electric current for supplying the wireless radio frequency modules is sampled, and the third output electric current that sampling obtains is sent to
Master control set.
The third output electric current that current sampler is supplied to wireless radio frequency modules to power supply samples, and sampling is obtained
The third output electric current obtained is sent to master control set, so that master control set handles third output electric current.
Step S217, the master control set receive and process the third output electric current, to obtain the third output electricity
The current value of stream, and the current value of third output electric current is sent to display so that the display shows the third
Export the current value of electric current.
Master control set receives third and exports electric current, and handles third output electric current, obtains third output electric current
The current value of third output electric current is sent to display by specific current value, so that display shows third output electric current
Current value.Third output electric current can be denoted as quiescent current.
Wireless radio frequency modules performance test methods provided in an embodiment of the present invention pass through the received test instruction of master control set
Difference, obtain the performance parameter of different wireless radio frequency modules.When master control set receives the first test instruction, first is obtained
The minimal power values (i.e. receiving sensitivity) of output power, the current value (current value for receiving electric current) of the first output electric current；When
It when master control set receives the second test instruction, obtains the second output power (transmission power), the frequency of the second output power is in
The current value (current value of emission current) of the deviant (frequency shift (FS)) of the frequency of heart frequency point and the second output electric current；Work as master
When controlling device and not only do not received the first test instruction, but also not receiving the second test instruction, the current value of third output electric current is obtained (not
The current value of dormancy electric current).Compared with the existing methods, method provided in an embodiment of the present invention is set without frequently connecting each test
It is standby, it is capable of measuring more parameter, efficiency is higher, is conducive to provide the production efficiency of wireless radio frequency modules.
Fig. 5 shows the structural block diagram of wireless radio frequency modules performance testing device provided in an embodiment of the present invention, the device
100 match with wireless radio frequency modules 200, including master control set 110, signal source 120, attenuator 130, oscillograph 140 and
Comprehensive test instrument 150.The master control set 110 is connected with signal source 120 and wireless radio frequency modules 200 respectively, and attenuator 130 divides
Be not connected with signal source 120 and wireless radio frequency modules 200, wireless radio frequency modules 200 also with oscillograph 140 and comprehensive test instrument
150 are connected.
Master control set 110 is instructed for receiving the first test instruction, and according to first test, controls signal source 120
Output power signal is sent to attenuator 130.
Master control set 110 may include singlechip chip (Single Chip Microcomputer), also known as microcontroller list
Member (Microcontroller Unit；MCU), SCM system, domain programmable gate array (Field-Programmable
Gate Array, FPGA) chip, Digital Signal Processing (Digital Signal Processing, DSP) chip or complexity
Programmable logic device (Complex Programmable Logic Device, CPLD) etc. controls chip.
The attenuator 130 is sent out for output power signal to be adjusted, and by the output power signal through overregulating
It send to wireless radio frequency modules 200, the output power signal through overregulating is denoted as the first output power.
The wireless radio frequency modules 200 are demodulated for receiving first output power, and by first output power
After be sent to oscillograph 140 so that the oscillograph 140 exports the corresponding waveform of first output power.
The wireless radio frequency modules 200 are also used to first output power being sent to comprehensive test instrument 150, so as to when described
Without drift and when burr, user obtains first output power most from the comprehensive test instrument 150 for waveform shown in oscillograph 140
Small-power value.
The wireless radio frequency modules performance test methods shown in wireless radio frequency modules performance testing device and Fig. 3 shown in Fig. 5
It is corresponding, it does not just repeat them here herein.
Details refer to Fig. 6, and Fig. 6 is a kind of specific implementation of wireless radio frequency modules performance testing device provided by the invention
Mode is matched with wireless radio frequency modules 200, including master control set 110, signal source 120, attenuator 130, oscillograph 140, comprehensive
Survey instrument 150, current sampler 160, power supply 170, display 180, power receiver 190 and key 300.
Master control set 110 respectively with key 300, signal source 120, wireless radio frequency modules 200, current sampler 160, power supply
170 and display 180 be connected.Signal source 120 is connected by attenuator 130 with wireless radio frequency modules 200.Less radio-frequency
Module 200 is also connected with power receiver 190, oscillograph 140 and current sampler 160.
First test instruction and the second test instruction can be issued by key 300, i.e., user presses corresponding key
300, thus triggering the first test instruction or the second test instruction.
Key 300 specifically can also include that first frequency adjustment key (not shown) and second frequency adjustment key (are schemed not
Show), first frequency adjustment instruction specifically can adjust key by first frequency and issue.First frequency adjustment key specifically can wrap
Two are included, one is used to increase the frequency of first output power, and one for reducing the frequency of the first output power.Master control
Device 110 can increased or decrease the frequency of the first output power according to the particular content of first frequency adjustment instruction.Second frequency
Rate adjustment instruction specifically can adjust key by second frequency and issue.Second frequency adjustment key can specifically include two, and one
A frequency for being used to increase by second output power, one is used to reduce the frequency of the second output power, and master control set 110 can
To increased or decrease the frequency of the second output power according to the particular content of second frequency adjustment instruction.
Attenuator 130 includes the first fixed attenuator 131, adjustable attenuator 133 and the second fixed attenuator 132, letter
Number source 120 passes sequentially through the first fixed attenuator 131, adjustable attenuator 133 and the second fixed attenuator 132 and less radio-frequency
Module 200 is connected.
The gain adjustment value of first fixed attenuator 131 and the second fixed attenuator 132 is fixed, adjustable attenuator
133 gain adjustment range is specially 0 to 62dB.
Current sampler 160 include current sampling resistor 161 and ADC sampler 162, ADC sampler 162 respectively with master
Control device 110 and current sampling resistor 161 be connected, current sampling resistor 161 also with power supply 170 and wireless radio frequency modules
200 are connected.
Current sampling resistor 161 is used to sample the first output electric current, and ADC sampler 162 is used for current sample
The electric current that resistance 161 obtains is AD converted, and the value obtained after conversion is sent to master control set 110.
Power receiver 190 specifically includes frequency spectrograph 191 and comprehensive test instrument 150, and frequency spectrograph 191 and comprehensive test instrument 150 are equal
It is connected with wireless radio frequency modules 200.
Frequency spectrograph 191 center frequency point can be arranged before measuring specific to a scheduled value, such as center frequency point
It can be 476.0078MHz or 488.0078MHz.Frequency spectrograph 191 can obtain the value and the second output of the second output power
The deviant of the frequency of the frequency and center frequency point of power.
Comprehensive test instrument 150 is used to obtain the minimal power values of the first output power.Specifically, in shown in oscillograph 140
When the waveform of one output power is without drifting about with burr, user can obtain the minimum power of the first output power from comprehensive test instrument 150
Value.
Wireless radio frequency modules performance testing device shown in Fig. 6 is opposite with above-mentioned wireless radio frequency modules performance test methods
It answers, does not just repeat them here herein.
Wireless radio frequency modules performance testing device is specifically as follows the test work of the RF index of wireless radio frequency modules 200
Dress compresses wireless radio frequency modules 200 by mechanical structure, prevents the module from loosening.According to the pcb board of wireless radio frequency modules 200
It is related to test point, test fixture is connected by thimble and radio antenna interface (Sub-Miniature-A, SMA), and is wirelessly penetrated
Frequency module 200 is in close contact.
The integrated level of the test fixture is high, in test process, does not need frequent more exchange device, reduces test step.And
In the batch production of wireless radio frequency modules 200, wireless radio frequency modules 200 are only needed to change, and wireless radio frequency modules 200 are installed
It is fixed on tooling, fast speed.In test fixture, equipment connection mode is fixed, it can be ensured that the consistency and stability of test,
Exclude the maloperation and careless omission in manual testing.
Wireless radio frequency modules performance test methods and device provided in an embodiment of the present invention are received by master control set 110 and are surveyed
Examination instruction, and instruct control signal source 120 to send output power signal to attenuator 130 according to test, attenuator 130 is to signal
Output power is adjusted and sends it to wireless radio frequency modules 200.Wireless radio frequency modules 200 receive above-mentioned overregulated
Output power signal, and oscillograph 140 is sent to after being demodulated so that oscillograph 140 can show it is opposite with above-mentioned power
The waveform answered；The output power signal overregulated of also expounding doctrines and experiences of wireless radio frequency modules 200 issues comprehensive test instrument 150, shows in oscillograph 140
When waveform out is without drifting about with burr, comprehensive test instrument 150 shows the minimal power values of above-mentioned power.Master control set 110, signal source
120, attenuator 130, oscillograph 140 and comprehensive test instrument 150 constitute the test device of an entirety, so as to avoid to wirelessly penetrating
It when frequency module 200 is detected, needs frequently to connect the cumbersome of equipment, is conducive to the production effect for improving wireless radio frequency modules 200
Rate.
In embodiment provided herein, it should be understood that disclosed device, it can also be by another way
It realizes.The apparatus embodiments described above are merely exemplary.
In addition, each functional module in embodiments of the present invention can integrate one independent part of formation together,
It can be modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute all or part of the steps of each embodiment of the present invention.And it is above-mentioned
Storage medium includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), magnetic or disk.It needs to illustrate
, herein, relational terms such as first and second and the like be used merely to by an entity or operation with it is another
A entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this actual
Relationship or sequence.Moreover, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion,
So that the process, article or the equipment that include a series of elements not only include those elements, but also including not clear
The other element listed, or further include for this process, article or the intrinsic element of equipment.Do not limiting more
In the case where, the element that is limited by sentence "including a ...", it is not excluded that include the process of the element, article or
There is also other identical elements in equipment.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of wireless radio frequency modules performance test methods, which is characterized in that the described method includes:
Pre-set programs are written in wireless radio frequency modules, the pre-set programs are used for input data is pre- through gauss low frequency filter
After modulation filtering, then carry out shift keying modulation；
Master control set receives the first test instruction, and is instructed according to first test, and control signal source sends signal output work
Rate is to attenuator；
Output power signal is adjusted in the attenuator, and the output power signal through overregulating is sent to less radio-frequency
Module, the output power signal through overregulating are denoted as the first output power；
The wireless radio frequency modules receive first output power, and will be sent to oscillography after first output power demodulation
Device, so that the oscillograph exports the corresponding waveform of first output power；
First output power is also sent to comprehensive test instrument by the wireless radio frequency modules, so as to when the wave shown in the oscillograph
When shape is without drifting about with burr, user obtains the minimal power values of first output power from the comprehensive test instrument, wherein the master
Control device, the signal source, the attenuator, the oscillograph and the comprehensive test instrument are included in test device.
2. the method according to claim 1, wherein the method also includes:
When the master control set receives the first test instruction, current sampler is supplied to the wireless radio frequency modules to power supply
First output electric current is sampled, and the first output electric current that sampling is obtained is sent to the master control set；
The master control set receives and processes the first output electric current, to obtain the current value of the first output electric current, and
The current value of the first output electric current is sent to display so that the display shows the electricity of the first output electric current
Flow valuve.
3. the method according to claim 1, wherein the method also includes:
The master control set receives first frequency adjustment instruction, and according to the first frequency adjustment instruction, adjusts the signal
The frequency for the output power signal that source is sent.
4. the method according to claim 1, wherein the method also includes:
The master control set receives the second test instruction, and is instructed according to second test, controls the wireless radio frequency modules
The second output power is sent to power receiver；
The power receiver receives and shows the second output power that the wireless radio frequency modules are sent.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
When the master control set receives the second test instruction, current sampler is supplied to the wireless radio frequency modules to power supply
Second output electric current is sampled, and the second output electric current that sampling is obtained is sent to the master control set,
The master control set receives and processes the second output electric current, to obtain the current value of the second output electric current, and
The current value of the second output electric current is sent to display so that the display shows the electricity of the second output electric current
Flow valuve.
6. according to the method described in claim 4, it is characterized in that, the method also includes:
The master control set receives second frequency adjustment instruction, and according to the second frequency adjustment instruction, adjusts described wireless
The frequency for the second output power that radio-frequency module is sent.
7. according to the method described in claim 5, it is characterized in that, the method also includes:
When the master control set does not receive the first test instruction and does not receive the second test instruction, the less radio-frequency mould
Block is in a dormant state；
When the wireless radio frequency modules in a dormant state when, the current sampler is supplied to the power supply and described wirelessly penetrates
The third output electric current of frequency module is sampled, and the third output electric current that sampling obtains is sent to master control set；
The master control set receives and processes the third output electric current, to obtain the current value of the third output electric current, and
The current value of third output electric current is sent to display so that the display shows the electricity of the third output electric current
Flow valuve.
8. a kind of wireless radio frequency modules performance testing device, which is characterized in that matched with wireless radio frequency modules, described device packet
Include master control set, signal source, attenuator, oscillograph and comprehensive test instrument, the master control set respectively with the signal source and nothing
Line radio-frequency module is connected, and the attenuator is connected with the signal source and wireless radio frequency modules respectively, described wirelessly to penetrate
Frequency module is connected with the oscillograph and comprehensive test instrument respectively, there is the pre-set programs of write-in, institute in the wireless radio frequency modules
It states pre-set programs to be used for input data after the filtering of gauss low frequency filter premodulated, then carries out shift keying modulation；
Master control set is instructed for receiving the first test instruction, and according to first test, and it is defeated that control signal source sends signal
Power is to attenuator out；
Output power signal through overregulating is sent to wirelessly by the attenuator for output power signal to be adjusted
Radio-frequency module, the output power signal through overregulating are denoted as the first output power；
The wireless radio frequency modules will be sent to for receiving first output power after first output power demodulation
Oscillograph, so that the oscillograph exports the corresponding waveform of first output power；
The wireless radio frequency modules are also used to first output power being sent to comprehensive test instrument, to show when the oscillograph
Waveform without drift and when burr, user obtains the minimal power values of first output power from the comprehensive test instrument.
9. device according to claim 8, which is characterized in that described device further includes current sampler, and the electric current is adopted
Sample device is connected with power supply, the master control set and wireless radio frequency modules respectively,
The current sampler is used to be supplied to power supply when the master control set receives the first test instruction and described wirelessly penetrate
First output electric current of frequency module is sampled, and the first output electric current that sampling is obtained is sent to the master control set；
The master control set is also used to receive and process the first output electric current, to obtain the electric current of the first output electric current
Value, and the current value of the first output electric current is sent to display so that the display shows the first output electric current
Current value.
10. device according to claim 8, which is characterized in that described device further includes power receiver, and the power connects
Device is received to be connected with the wireless radio frequency modules,
The master control set is instructed for receiving the second test instruction, and according to second test, controls the less radio-frequency
Module sends the second output power to the power receiver；
The power receiver is used to receive and show the second output power that the wireless radio frequency modules are sent.
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| CN109787924B (en) * | 2019-03-13 | 2021-06-15 | 重庆邮电大学 | LoRa channel estimation method based on compressed sensing |
| CN110212995A (en) * | 2019-06-26 | 2019-09-06 | 珠海泰芯半导体有限公司 | A kind of WIFI frequency reducing module test device and test method |
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