CN104714088B - A kind of frequency spectrograph and spectral measuring method - Google Patents
A kind of frequency spectrograph and spectral measuring method Download PDFInfo
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- CN104714088B CN104714088B CN201510067056.3A CN201510067056A CN104714088B CN 104714088 B CN104714088 B CN 104714088B CN 201510067056 A CN201510067056 A CN 201510067056A CN 104714088 B CN104714088 B CN 104714088B
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Abstract
The embodiment of the invention discloses a kind of frequency spectrograph and spectral measuring method, belongs to arrangements for analyzing frequency field, and the frequency spectrograph includes：Rf chip, single-chip microcomputer and control main frame；The control main frame is instructed to the single-chip microcomputer for sending signal acquisition, wherein, the signal acquisition instruction includes the arrange parameter that the rf chip performs signal acquisition operation；The single-chip microcomputer is used for the setting instruction for being converted to the rf chip and perform signal acquisition operation the arrange parameter that the acquired execution signal acquisition operates, and sends the setting for performing signal acquisition operation and instructs to the rf chip；The rf chip is used to set the rf chip to perform the configuration parameter that signal acquisition operates according to the setting instruction that the execution signal acquisition operates, and gathers the frequency domain information of wireless signal.It is an object of the invention to provide a kind of frequency spectrograph and spectral measuring method, to effectively improve the portability of frequency spectrograph.
Description
Technical field
The present invention relates to arrangements for analyzing frequency field, in particular to a kind of frequency spectrograph and spectral measuring method.
Background technology
Frequency spectrograph is a kind of equipment for signal Analysis frequency domain information, is the essential equipment of information science field.
At present, conventional frequency spectrograph includes superhet frequency spectrograph.
The key principle of superhet frequency spectrograph be using voltage controlled oscillator produce local frequency, with after measured frequency mixing after,
By the signal that assigned frequency is obtained after intermediate-frequency filter.Change local frequency, the signal intensity with regard to different frequency can be detected, shape
Into frequency spectrum.
Inventor has found that existing frequency spectrograph is expensive under study for action, and includes low pass filter, decay in frequency spectrograph
Device, voltage controlled oscillator, frequency mixer, intermediate frequency amplifier, intermediate-frequency filter, logafier and wave detector and display etc. are independent
The module of independent connection, cause volume big, preponderance, portability is too low, is used in can not testing out of doors.
The content of the invention
It is an object of the invention to provide a kind of frequency spectrograph and spectral measuring method, to effectively improve the portable of frequency spectrograph
Property.
In a first aspect, a kind of frequency spectrograph provided in an embodiment of the present invention, including：Rf chip, single-chip microcomputer and control
Main frame；
The control main frame is instructed to the single-chip microcomputer for sending signal acquisition, wherein, the signal acquisition instruction bag
Include the arrange parameter that the rf chip performs signal acquisition operation；
The single-chip microcomputer is used to the arrange parameter that the acquired execution signal acquisition operates being converted to the radio frequency
Transceiving chip performs the setting instruction of signal acquisition operation, and the transmission setting for performing signal acquisition operation, which is instructed to described, penetrates
Frequency transceiving chip；
The rf chip is used to set the radio frequency to receive according to the setting instruction that the execution signal acquisition operates
The configuration parameter that chip performs signal acquisition operation is sent out, wireless communication is gathered according to the configuration parameter that the execution signal acquisition operates
Number frequency domain information.
With reference in a first aspect, the embodiment of the present invention additionally provides the first possible embodiment of first aspect, wherein, institute
Rf chip is stated to be N number of, wherein, N is more than 2, the control main frame be stored with each rf chip mark and
Multiple sample channels；The signal acquisition instruction also includes any one sample channel and the mark of the rf chip；
The single-chip microcomputer sends the setting for performing signal acquisition operation and instructed to the rf chip, including：
The single-chip microcomputer sends the setting instruction of the execution signal acquisition operation institute sent to the control main frame
State rf chip corresponding to the mark of rf chip.
With reference to the first of first aspect or first aspect possible embodiment, the embodiment of the present invention additionally provides first party
Second of possible embodiment in face, wherein, the control main frame is additionally operable to transmission package and instructed to the single-chip microcomputer, wherein,
The package instruction includes the arrange parameter that the rf chip performs the operation of signal package；
The single-chip microcomputer is additionally operable to the arrange parameter of acquired execution signal package operation being converted to described penetrate
Frequency transceiving chip performs the setting instruction of signal package operation, sends the setting for performing the operation of signal package and instructs to described
Rf chip；
The rf chip is additionally operable to set the radio frequency according to the setting instruction that the execution signal package operates
Transceiving chip performs the configuration parameter of signal package operation, according to the configuration parameter that the execution signal package operates by wireless communication
Number package.
With reference to the first of first aspect or first aspect possible embodiment, the embodiment of the present invention additionally provides first party
The third possible embodiment in face, wherein, the control main frame is additionally operable to transmission signal and sends a command to the single-chip microcomputer, its
In, the signal, which sends instruction, includes the arrange parameter that the rf chip performs signal transmission operation；
The arrange parameter that the single-chip microcomputer is additionally operable to send the acquired execution signal operation is converted to described penetrate
Frequency transceiving chip performs the setting instruction of signal transmission operation, sends the setting for performing signal transmission operation and instructs to described
Rf chip；
The setting instruction that the rf chip is additionally operable to send operation according to the execution signal sets the radio frequency
Transceiving chip performs the configuration parameter that signal sends operation, and the configuration parameter for sending operation according to the execution signal sends wireless
Signal.
With reference to the first of first aspect or first aspect possible embodiment, the embodiment of the present invention additionally provides first party
The 4th kind of possible embodiment in face, wherein, in addition to display device, the display device is for showing that the control main frame obtains
The frequency domain information of the wireless signal of the rf chip collection taken.
Second aspect, the embodiments of the invention provide a kind of spectral measuring method, applied to frequency spectrograph, the frequency spectrograph bag
Include：Rf chip, single-chip microcomputer and control main frame, methods described include：
The control main frame sends signal acquisition and instructed to the single-chip microcomputer, wherein, the signal acquisition instruction includes institute
State the arrange parameter that rf chip performs signal acquisition operation；
The arrange parameter that the acquired execution signal acquisition operates is converted to the radio-frequency receiving-transmitting by the single-chip microcomputer
Chip performs the setting instruction of signal acquisition operation, and the transmission setting for performing signal acquisition operation, which is instructed to the radio frequency, receives
Send out chip；
The setting instruction that the rf chip operates according to the execution signal acquisition sets the radio-frequency receiving-transmitting core
Piece performs the configuration parameter of signal acquisition operation, and wireless signal is gathered according to the configuration parameter that the execution signal acquisition operates
Frequency domain information.
With reference to second aspect, the embodiment of the present invention additionally provides the first possible embodiment of second aspect, wherein, institute
Rf chip is stated to be N number of, wherein, N is more than 2, the control main frame be stored with each rf chip mark and
Multiple sample channels；The signal acquisition instruction also includes any one sample channel and the mark of the rf chip；
The single-chip microcomputer sends the setting for performing signal acquisition operation and instructed to the rf chip, including：
The single-chip microcomputer sends the setting instruction of the execution signal acquisition operation institute sent to the control main frame
State rf chip corresponding to the mark of rf chip.
With reference to the first of second aspect or second aspect possible embodiment, the embodiment of the present invention additionally provides second party
Second of possible embodiment in face, wherein, methods described also includes：
The control main frame sends package and instructed to the single-chip microcomputer, wherein, the package instruction includes the radio frequency and received
Send out the arrange parameter that chip performs the operation of signal package；
The arrange parameter that the acquired execution signal package operates is converted to the radio-frequency receiving-transmitting by the single-chip microcomputer
Chip performs the setting instruction of signal package operation, and the transmission setting for performing the operation of signal package, which is instructed to the radio frequency, receives
Send out chip；
The setting instruction that the rf chip operates according to the execution signal package sets the radio-frequency receiving-transmitting core
Piece performs the configuration parameter of signal package operation, is sealed wireless signal according to the configuration parameter that the execution signal package operates
Bag.
With reference to the first of second aspect or second aspect possible embodiment, the embodiment of the present invention additionally provides second party
The third possible embodiment in face, wherein, methods described also includes：
The control main frame sends signal and sends a command to the single-chip microcomputer, wherein, the signal, which sends instruction, includes institute
State rf chip and perform the arrange parameter that signal sends operation；
The arrange parameter that the single-chip microcomputer sends the acquired execution signal operation is converted to the radio-frequency receiving-transmitting
Chip performs the setting instruction of signal transmission operation, and the transmission setting for performing signal transmission operation, which is instructed to the radio frequency, receives
Send out chip；
The setting instruction that the rf chip sends operation according to the execution signal sets the radio-frequency receiving-transmitting core
Piece performs the configuration parameter that signal sends operation, and wireless signal is sent according to the configuration parameter that the execution signal sends operation.
With reference to the first of second aspect or second aspect possible embodiment, the embodiment of the present invention additionally provides second party
The 4th kind of possible embodiment in face, wherein, the frequency spectrograph also includes display device, and methods described also includes：
The display device shows the frequency of the wireless signal for the rf chip collection that the control main frame obtains
Domain information.
The embodiment of the present invention sends signal acquisition by control main frame and instructed to the single-chip microcomputer, and the single-chip microcomputer is by described in
The arrange parameter performed on rf chip needed for signal acquisition operation in signal acquisition instruction is converted to setting instruction,
The setting instruction is sent to the rf chip by the single-chip microcomputer, is triggered the rf chip and is set according to
Put instruction and inner parameter is set, for example, the arrange parameter of the execution signal acquisition operation in signal acquisition instruction includes penetrating
The channel of frequency transceiving chip collection and sweep time, the rf chip described perform letter according to what the single-chip microcomputer was sent
The setting instruction of number acquisition operations, the configuration parameter of inside is set, such as the timing of internal timer is defined according to sweep time
Time.
In addition, with the development of integrated circuit technique, the function and performance of rf chip are stronger and stronger, its volume
Less and less, price is more and more lower, and therefore, the embodiment of the present invention is by by the rf chip, single-chip microcomputer and described
Control main frame forms frequency spectrograph, and the superhet frequency spectrograph with prior art is due to including low pass filter, attenuator, VCO
What device, frequency mixer, intermediate frequency amplifier, intermediate-frequency filter, logafier and wave detector and display etc. were individually independently connected
Module, the shortcomings of volume is big, quality weight is caused to be compared, the rf chip of the embodiment of the present invention, single-chip microcomputer and described
Control main frame small volume, it is in light weight, effectively improve the portability of frequency spectrograph.
Other features and advantages of the present invention will illustrate in subsequent specification, also, partly become from specification
It is clear that or by implementing understanding of the embodiment of the present invention.The purpose of the present invention and other advantages can be by saying what is write
Specifically noted structure is realized and obtained in bright book, claims and accompanying drawing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.By the way that shown in accompanying drawing, above and other purpose of the invention, feature and advantage will become apparent from.In whole
Identical reference instruction identical part in accompanying drawing.Deliberately accompanying drawing, emphasis are not drawn by actual size equal proportion scaling
It is the purport for showing the present invention.
Fig. 1 shows a kind of structured flowchart of the embodiment of frequency spectrograph provided in an embodiment of the present invention；
Fig. 2 shows the structured flowchart of the embodiment of another frequency spectrograph provided in an embodiment of the present invention；
Fig. 3 shows a kind of method flow diagram of the embodiment of spectral measuring method provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Frequency spectrograph is a kind of equipment for signal Analysis frequency domain information, is the essential equipment of information science field.
At present, conventional frequency spectrograph includes superhet frequency spectrograph.
The key principle of superhet frequency spectrograph be using voltage controlled oscillator produce local frequency, with after measured frequency mixing after,
By the signal that assigned frequency is obtained after intermediate-frequency filter.Change local frequency, the signal intensity with regard to different frequency can be detected, shape
Into frequency spectrum.
Inventor has found that existing frequency spectrograph is expensive under study for action, and includes low pass filter, decay in frequency spectrograph
Device, voltage controlled oscillator, frequency mixer, intermediate frequency amplifier, intermediate-frequency filter, logafier and wave detector and display etc. are independent
The module of independent connection, cause volume big, preponderance, portability is too low, is used in can not testing out of doors.
In order to solve, the volume of the frequency spectrograph of prior art is excessive and preponderance, it has not been convenient to the shortcomings that carrying, such as Fig. 1 institutes
Show, the embodiments of the invention provide a kind of frequency spectrograph, the frequency spectrograph includes：Rf chip 102, single-chip microcomputer 101 and control
Main frame 103 processed；
The control main frame 103 is instructed to the single-chip microcomputer 101 for sending signal acquisition, wherein, the signal acquisition
Instruction includes the arrange parameter that the rf chip 102 performs signal acquisition operation；
The single-chip microcomputer 101 is used to the arrange parameter that the acquired execution signal acquisition operates being converted to described penetrate
Frequency transceiving chip 102 perform signal acquisition operation setting instruction, send it is described perform signal acquisition operation setting instruct to
The rf chip；
The rf chip 102 is used to set the radio frequency according to the setting instruction that the execution signal acquisition operates
Transceiving chip performs the configuration parameter of signal acquisition operation, gathers the frequency domain information of wireless signal.
In the embodiment of the present invention, the arrange parameter that the rf chip performs signal acquisition operation includes radio-frequency receiving-transmitting
The channel of chip collection wireless signal and sweep time.The channel includes frequency and bandwidth.
In the embodiment of the present invention, the rf chip is located in radio frequency signal, such as measures 2.4GHz-
2.5GHz signal, the frequency spectrograph 2400000KHz to be measured to 2400500KHz, the control main frame send signal acquisition
To the single-chip microcomputer, the rf chip in the signal acquisition instruction performs the arrange parameter bag of signal acquisition operation for instruction
Frequency and bandwidth are included, the frequency is 2400000KHz and 2400500KHz, a width of 500KHz of band, and the single-chip microcomputer receives
The arrange parameter of signal acquisition operation is performed to the rf chip, the rf chip execution signal is converted to and adopts
The setting instruction of collection operation, it is described to set instruction to be instructed for hardware operation in the embodiment of the present invention, for example, the single-chip microcomputer will
The arrange parameter that the rf chip performs signal acquisition operation is converted to hardware description language, such as C language or compilation
Language, the inside for changing the rf chip by the hardware description language configure.
The wireless signal collected is done spectrum analysis by the rf chip, such as passes through the rf chip
Fourier's change or the data processing unit such as Fast Fourier Transform (FFT) spectrum analysis is done to the wireless signal gathered, analyze
The intensity of signal in the channel that signal is gathered.
Therefore, the embodiment of the present invention by the rf chip, single-chip microcomputer and the control main frame by forming frequency spectrum
Instrument, the superhet frequency spectrograph with prior art including low pass filter, attenuator, voltage controlled oscillator, frequency mixer, intermediate frequency due to putting
The module that big device, intermediate-frequency filter, logafier and wave detector and display etc. are individually independently connected, cause volume it is big,
The shortcomings of quality weight, is compared, the rf chip, single-chip microcomputer and the control main frame small volume of the embodiment of the present invention, weight
Amount is light, effectively improves the portability of frequency spectrograph.
In addition, the embodiment of the present invention can also capture the package of wireless signal, the control main frame is additionally operable to send package
Instruct to the single-chip microcomputer, wherein, the package instruction includes the setting that the rf chip performs the operation of signal package
Parameter；The single-chip microcomputer is additionally operable to the arrange parameter of acquired execution signal package operation being converted to the radio frequency receipts
The setting instruction that chip performs the operation of signal package is sent out, the setting for performing the operation of signal package is sent and instructs to the radio frequency
Transceiving chip；The rf chip is additionally operable to set the radio frequency according to the setting instruction that the execution signal package operates
Transceiving chip performs the configuration parameter of signal package operation, by wireless signal package.Wherein, the rf chip performs letter
The arrange parameter of number package operation includes package channel and filter condition etc..
Furthermore the control main frame is additionally operable to transmission signal and sends a command to the single-chip microcomputer, wherein, the signal is sent
Instruction includes the rf chip and performs the arrange parameter that signal sends operation；The single-chip microcomputer is additionally operable to will be acquired
The arrange parameter for performing signal transmission operation is converted to the setting that the rf chip execution signal sends operation and referred to
Order, send the setting for performing signal transmission operation and instruct to the rf chip；The rf chip is also used
Set the rf chip to perform signal in the setting instruction for sending operation according to the execution signal and send matching somebody with somebody for operation
Parameter is put, sends wireless signal.
Fig. 2 shows the structured flowchart of the embodiment of another frequency spectrograph of the embodiment of the present invention, and the frequency spectrograph includes：
Rf chip 202, single-chip microcomputer 201 and control main frame 203；
The control main frame 203 is instructed to the single-chip microcomputer 201 for sending signal acquisition, wherein, the signal acquisition
Instruction includes the arrange parameter that the rf chip 202 performs signal acquisition operation；
The single-chip microcomputer 201 is used to the arrange parameter that the acquired execution signal acquisition operates being converted to described penetrate
Frequency transceiving chip 202 perform signal acquisition operation setting instruction, send it is described perform signal acquisition operation setting instruct to
The rf chip；
The rf chip 202 is used to set the radio frequency according to the setting instruction that the execution signal acquisition operates
Transceiving chip performs the configuration parameter of signal acquisition operation, gathers the frequency domain information of wireless signal.
In the embodiment of the present invention, the rf chip 202 is multiple, specifically waits when in use, can be 10, such as
Shown in Fig. 2,10 rf chips 202 are connected with the single-chip microcomputer 201, and the control main frame internal memory contains each
The mark of individual rf chip.
The spectrum analysis speed of the frequency spectrograph is improved by multiple rf chips, for example, being intended to analyze
The frequency spectrum of wireless signal in 2400000KHz to 2400500KHz frequency ranges, with a rf chip with 500KHz bandwidth
Scan 2400000KHz to 2400500KHz frequency ranges in wireless signal, therefore with 500KHz bandwidth by 2400000KHz extremely
This 100M bandwidth partition between 2400500KHz frequency ranges is 200 channels, passes through the single-chip microcomputer control by the control main frame
The spectrum information that the rf chip gathers this 200 channel signals with 500KHz bandwidth successively is made, it is required
Time is about 100ms.
When analyzing the wireless signal in 2400000KHz to 2400500KHz frequency ranges simultaneously with 10 rf chips,
Each rf chip only needs to scan 20 channels, such as the channel of a rf chip scanning is
2400000KHz-2400500KHz, 2400500KHz-2401000KHz, 2401000KHz-2401500KHz, the like, directly
To 2409500KHz-2410000KHz, the channel of another rf chip scanning is 2410000KHz-2410500KHZ,
2410500KHz-2411000KHz, the like, until 2419500KHz-2420000KHz, then other 8 radio frequencies are received
Hair chip gathers remaining wireless signal successively, and each rf chip gathers 20 channels, therefore 10 radio-frequency receiving-transmitting cores
200 channels that piece is divided equally between 2.4GHz-2.5GHz, the control chip control this 10 radio-frequency receiving-transmitting cores by single-chip microcomputer
Piece is with the channel that each gathers while gathers the wireless signal between 2.4GHz-2.5GHz frequency ranges, improves signal spectral analysis
Speed, so scanning all channels only needs 10ms, and therefore, sweep speed greatly improves.Through inventor's experimental verification, with
The increase of the quantity of rf chip, the sweep speed of the frequency spectrograph linearly improves.
It is that rf chip distribution is swept by the control main frame in addition, when carrying out the spectrum analysis of signal
, can also be in the following way when retouching channel：
A) rf chip can be set only to measure a channel, for example, by 10 rf chips simultaneously
A channel in 200 channels is gathered, gathers after the channel terminates and gathers another channel again, until 200 channels are adopted
Collection finishes.Therefore, gathered simultaneously using 10 rf chips, the measurement of the spectrum information of wireless signal can be effectively improved
Precision.
B) 200 channels of measurement can be averagely allocated to each rf chip, can so improved wireless
The measuring speed of the spectrum information of signal.
C) 200 channel inequalities of measurement can be distributed to each rf chip, for example, 200 are believed
Certain several channel distribution in road receive remaining channel distribution to remaining radio frequency to 3 in 10 rf chips
Chip is sent out, so can be with the wireless signal of focus measurement local channel, but the wireless communication of remaining channel can be also taken into account simultaneously
Number spectrum measurement.
In addition, the frequency spectrograph of the embodiment of the present invention also includes display device 204, the display device 204 and the control
Main frame 203 connects, and the display device is used to show the wireless of the rf chip collection that the control main frame obtains
The frequency domain information of signal.
The wireless signal of collection is carried out spectrum analysis and obtains spectrum information by the rf chip, and by spectrum information
The single-chip microcomputer is returned to, the spectrum information is sent to the control main frame by the single-chip microcomputer again, is carried out by display device
Display.
In addition, the embodiment of the present invention can also capture the package of wireless signal, the control main frame is additionally operable to send package
Instruct to the single-chip microcomputer, wherein, the package instruction includes the setting that the rf chip performs the operation of signal package
Parameter；The single-chip microcomputer is additionally operable to the arrange parameter of acquired execution signal package operation being converted to the radio frequency receipts
The setting instruction that chip performs the operation of signal package is sent out, the setting for performing the operation of signal package is sent and instructs to the radio frequency
Transceiving chip；The rf chip is additionally operable to set the radio frequency according to the setting instruction that the execution signal package operates
Transceiving chip performs the configuration parameter of signal package operation, by wireless signal package.Wherein, the rf chip performs letter
The arrange parameter of number package operation includes package channel and filter condition etc..
The embodiment of the present invention, over multiple channels simultaneously to wireless signal package, is improved by multiple rf chips
Capture the speed of wireless signal package.
Furthermore the control main frame is additionally operable to transmission signal and sends a command to the single-chip microcomputer, wherein, the signal is sent
Instruction includes the rf chip and performs the arrange parameter that signal sends operation；The setting for performing signal and sending operation
Parameter includes content and the transmission time interval sent.
The arrange parameter that the single-chip microcomputer is additionally operable to send the acquired execution signal operation is converted to described penetrate
Frequency transceiving chip performs the setting instruction of signal transmission operation, sends the setting for performing signal transmission operation and instructs to described
Rf chip；The rf chip is additionally operable to according to the execution signal sends the setting instruction setting of operation
Rf chip performs the configuration parameter that signal sends operation, sends wireless signal.
Therefore, the frequency spectrograph that the embodiment of the present invention is provided can not only may be used also to the Analysis of Spectrum of wireless signal
To be led by wireless signal package, such as by after wireless signal package, being sent to control by single-chip microcomputer with certain communication protocol
Wireless signal is input in the processor with high-accuracy digital signal Processing Algorithm and does spectrum analysis by machine, makes the frequency
Spectrometer use is more flexible, and the calibration tape to wireless signal carrys out great convenience.
In the embodiment of the present invention, the rf chip can be model TLSR8870 radio frequency chip, can also
It is model nRF24LU1 radio frequency chip, the measurement accuracy energy of the signal spectrum of the rf chip of the embodiment of the present invention
Enough reach 0.5db, and conventional spectral instrument, such as superhet frequency spectrograph, measurement accuracy 1.5db, measurement essence can be effectively improved
Degree；In addition, 10 rf chips are integrated on a circuit board, its weight is less than 100 grams, counts in for the outer of encapsulation
Shell, weight are less than 300 grams, compared with 6 kilograms of weight of existing frequency spectrograph, effectively reduce the weight of frequency spectrograph, effectively carry
High portability；Furthermore the power consumption of 10 rf chips and single-chip microcomputer is probably in 700mW, and the power consumption of conventional spectral instrument
Reach 30W, the embodiment of the present invention can effectively reduce the power consumption of frequency spectrograph.
In addition, the frequency spectrograph that the embodiment of the present invention is provided can also send signal, the radio-frequency receiving-transmitting core can be passed through
Piece sends the spectrum information after the wireless signal analysis gathered in a manner of radiofrequency signal, therefore, can be by wireless terminal
The spectrum information is received, is easy to the spectrum analysis of the frequency spectrograph.
Furthermore the rf chip sends signal, signal package and the spectrum information of analysis can be by described aobvious
Show that device is shown.
The embodiment of the present invention by by the rf chip, single-chip microcomputer and the control main frame form frequency spectrograph, with
The superhet frequency spectrograph of prior art due to including low pass filter, attenuator, voltage controlled oscillator, frequency mixer, intermediate frequency amplifier,
The module that intermediate-frequency filter, logafier and wave detector and display etc. are individually independently connected, causes that volume is big, quality weight
The shortcomings of compare, the rf chip, single-chip microcomputer and the control main frame small volume of the embodiment of the present invention are in light weight,
Effectively improve the portability of frequency spectrograph.
By setting multi-disc rf chip, sampling rate and signal analysis precision are improved, and believe with sending
Number, the function of signal package.
As shown in figure 3, the embodiment of the present invention additionally provides a kind of spectral measuring method, and applied to frequency spectrograph, the frequency spectrum
Instrument includes：Rf chip, single-chip microcomputer and control main frame, methods described include：
S31：Control main frame sends signal acquisition and instructed to single-chip microcomputer；
The control main frame sends signal acquisition and instructed to the single-chip microcomputer, wherein, the signal acquisition instruction includes institute
State the arrange parameter that rf chip performs signal acquisition operation；
S32：Signal acquisition instruction is converted to setting instruction by single-chip microcomputer；
The arrange parameter that the acquired execution signal acquisition operates is converted to the radio-frequency receiving-transmitting by the single-chip microcomputer
Chip performs the setting instruction of signal acquisition operation, and the transmission setting for performing signal acquisition operation, which is instructed to the radio frequency, receives
Send out chip；
S33：The configuration parameter that rf chip is set is instructed according to setting.
The setting instruction that the rf chip operates according to the execution signal acquisition sets the radio-frequency receiving-transmitting core
Piece performs the configuration parameter of signal acquisition operation, gathers the frequency domain information of wireless signal.
In addition, the rf chip is N number of, wherein, N is more than 2, and the control main frame is stored with each radio frequency receipts
Send out the mark of chip and multiple sample channels；The signal acquisition instruction includes any one sample channel and the radio-frequency receiving-transmitting core
The mark of piece；
In above-mentioned steps S32, the single-chip microcomputer sends the setting for performing signal acquisition operation and instructed to the radio frequency
Transceiving chip, including：
The single-chip microcomputer sends the setting instruction of the execution signal acquisition operation institute sent to the control main frame
State rf chip corresponding to the mark of rf chip.
In addition, methods described also includes：
The control main frame sends package and instructed to the single-chip microcomputer, wherein, the package instruction includes the radio frequency and received
Send out the arrange parameter that chip performs the operation of signal package；
The arrange parameter that the acquired execution signal package operates is converted to the radio-frequency receiving-transmitting by the single-chip microcomputer
Chip performs the setting instruction of signal package operation, and the transmission setting for performing the operation of signal package, which is instructed to the radio frequency, receives
Send out chip；
The setting instruction that the rf chip operates according to the execution signal package sets the radio-frequency receiving-transmitting core
Piece performs the configuration parameter of signal package operation, by wireless signal package.
In addition, methods described also includes：
The control main frame sends signal and sends a command to the single-chip microcomputer, wherein, the signal, which sends instruction, includes institute
State rf chip and perform the arrange parameter that signal sends operation；
The arrange parameter that the single-chip microcomputer sends the acquired execution signal operation is converted to the radio-frequency receiving-transmitting
Chip performs the setting instruction of signal transmission operation, and the transmission setting for performing signal transmission operation, which is instructed to the radio frequency, receives
Send out chip；
The setting instruction that the rf chip sends operation according to the execution signal sets the radio-frequency receiving-transmitting core
Piece performs the configuration parameter that signal sends operation, sends wireless signal.
Furthermore the frequency spectrograph also includes display device, methods described also includes：
The display device shows the frequency of the wireless signal for the rf chip collection that the control main frame obtains
Domain information.
The embodiment of methods described in the embodiment of the present invention is identical with the embodiment of described device, will not be repeated here.
In addition, the flow chart and block diagram in accompanying drawing show system, method and the meter of multiple embodiments according to the present invention
Architectural framework in the cards, function and the operation of calculation machine program product.At this point, each square frame in flow chart or block diagram
Can represent a part for a module, program segment or code, the part of the module, program segment or code include one or
Multiple executable instructions for being used to realize defined logic function.It should also be noted that some as replace realization in, square frame
Middle marked function can also be with different from the order marked in accompanying drawing generation.For example, two continuous square frames are actually
It can perform substantially in parallel, they can also be performed in the opposite order sometimes, and this is depending on involved function.Also to note
Meaning, the combination of each square frame and block diagram in block diagram and/or flow chart and/or the square frame in flow chart can be with holding
Function as defined in row or the special hardware based system of operation are realized, or can use specialized hardware and computer instruction
Combination realize.
A kind of computer program product of information interacting method of progress that the embodiment of the present invention is provided, including store journey
The computer-readable recording medium of sequence code, the instruction that described program code includes can be used for performing institute in previous methods embodiment
The method stated, specific implementation can be found in embodiment of the method, will not be repeated here.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, can be with
Realize by another way.Device embodiment described above is only schematical, for example, the division of the unit,
Only a kind of division of logic function, can there is other dividing mode when actually realizing, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or beg for
The mutual coupling of opinion or direct-coupling or communication connection can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to be contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are causing a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
- A kind of 1. frequency spectrograph, it is characterised in that including：Rf chip, single-chip microcomputer and control main frame；The control main frame is instructed to the single-chip microcomputer for sending signal acquisition, wherein, the signal acquisition instruction includes institute State the arrange parameter that rf chip performs signal acquisition operation；The single-chip microcomputer is used to the arrange parameter that the acquired execution signal acquisition operates being converted to the radio-frequency receiving-transmitting Chip performs the setting instruction of signal acquisition operation, and the transmission setting for performing signal acquisition operation, which is instructed to the radio frequency, receives Send out chip；The rf chip is used to set the radio-frequency receiving-transmitting core according to the setting instruction that the execution signal acquisition operates Piece performs the configuration parameter of signal acquisition operation, and wireless signal is gathered according to the configuration parameter that the execution signal acquisition operates Frequency domain information；The arrange parameter that the rf chip performs signal acquisition operation includes rf chip collection wireless signal Channel and sweep time；The channel includes frequency and bandwidth.
- 2. frequency spectrograph according to claim 1, it is characterised in that the rf chip is N number of, wherein, N is more than 2, The control main frame is stored with the mark of each rf chip and multiple sample channels；The signal acquisition instruction is also wrapped Include any one sample channel and the mark of the rf chip；The single-chip microcomputer sends the setting for performing signal acquisition operation and instructed to the rf chip, including：The single-chip microcomputer will be penetrated described in the setting instruction transmission to control main frame transmission for performing signal acquisition operation Rf chip corresponding to the mark of frequency transceiving chip.
- 3. frequency spectrograph according to claim 1, it is characterised in that：The control main frame is additionally operable to transmission package and instructed to the single-chip microcomputer, wherein, the package instruction includes the radio frequency Transceiving chip performs the arrange parameter of signal package operation；The single-chip microcomputer is additionally operable to the arrange parameter of acquired execution signal package operation being converted to the radio frequency receipts The setting instruction that chip performs the operation of signal package is sent out, the setting for performing the operation of signal package is sent and instructs to the radio frequency Transceiving chip；The rf chip is additionally operable to set the radio-frequency receiving-transmitting according to the setting instruction that the execution signal package operates Chip performs the configuration parameter of signal package operation, is sealed wireless signal according to the configuration parameter that the execution signal package operates Bag.
- 4. frequency spectrograph according to claim 1, it is characterised in that：The control main frame is additionally operable to transmission signal and sends a command to the single-chip microcomputer, wherein, the signal, which sends instruction, to be included The rf chip performs the arrange parameter that signal sends operation；The arrange parameter that the single-chip microcomputer is additionally operable to send the acquired execution signal operation is converted to the radio frequency receipts The setting instruction that chip performs signal transmission operation is sent out, the setting for performing signal transmission operation is sent and instructs to the radio frequency Transceiving chip；The setting instruction that the rf chip is additionally operable to send operation according to the execution signal sets the radio-frequency receiving-transmitting Chip performs the configuration parameter that signal sends operation, and wireless communication is sent according to the configuration parameter that the execution signal sends operation Number.
- 5. frequency spectrograph according to claim 1 or 2, it is characterised in that be also used for including display device, the display device Show the frequency domain information of the wireless signal for the rf chip collection that the control main frame obtains.
- 6. a kind of spectral measuring method, it is characterised in that applied to frequency spectrograph, the frequency spectrograph includes：Rf chip, list Piece machine and control main frame, methods described include：The control main frame sends signal acquisition and instructed to the single-chip microcomputer, wherein, the signal acquisition instruction includes described penetrate Frequency transceiving chip performs the arrange parameter of signal acquisition operation；The arrange parameter that the acquired execution signal acquisition operates is converted to the rf chip by the single-chip microcomputer The setting instruction of signal acquisition operation is performed, the setting for performing signal acquisition operation is sent and instructs to the radio-frequency receiving-transmitting core Piece；The setting instruction that the rf chip operates according to the execution signal acquisition sets the rf chip to hold The configuration parameter of row signal acquisition operation, the configuration parameter operated according to the execution signal acquisition gather the frequency domain of wireless signal Information；The arrange parameter that the rf chip performs signal acquisition operation includes rf chip collection wireless signal Channel and sweep time；The channel includes frequency and bandwidth.
- 7. spectral measuring method according to claim 6, it is characterised in that the rf chip is N number of, wherein, N More than 2, the control main frame is stored with the mark of each rf chip and multiple sample channels；The signal acquisition refers to Order also includes any one sample channel and the mark of the rf chip；The single-chip microcomputer sends the setting for performing signal acquisition operation and instructed to the rf chip, including：The single-chip microcomputer will be penetrated described in the setting instruction transmission to control main frame transmission for performing signal acquisition operation Rf chip corresponding to the mark of frequency transceiving chip.
- 8. the spectral measuring method according to claim 6 or 7, it is characterised in that methods described also includes：The control main frame sends package and instructed to the single-chip microcomputer, wherein, the package instruction includes the radio-frequency receiving-transmitting core Piece performs the arrange parameter of signal package operation；The arrange parameter that the acquired execution signal package operates is converted to the rf chip by the single-chip microcomputer The setting instruction of signal package operation is performed, the setting for performing the operation of signal package is sent and instructs to the radio-frequency receiving-transmitting core Piece；The setting instruction that the rf chip operates according to the execution signal package sets the rf chip to hold The configuration parameter of row signal package operation, according to the configuration parameter that the execution signal package operates by wireless signal package.
- 9. the spectral measuring method according to claim 6 or 7, it is characterised in that methods described also includes：The control main frame sends signal and sends a command to the single-chip microcomputer, wherein, the signal, which sends instruction, includes described penetrate Frequency transceiving chip performs the arrange parameter that signal sends operation；The arrange parameter that the single-chip microcomputer sends the acquired execution signal operation is converted to the rf chip The setting instruction of signal transmission operation is performed, the setting for performing signal transmission operation is sent and instructs to the radio-frequency receiving-transmitting core Piece；The setting instruction that the rf chip sends operation according to the execution signal sets the rf chip to hold Row signal sends the configuration parameter of operation, and wireless signal is sent according to the configuration parameter that the execution signal sends operation.
- 10. according to the spectral measuring method of claim 6 or 7, it is characterised in that the frequency spectrograph also includes display device, institute Stating method also includes：The display device shows the frequency domain letter of the wireless signal for the rf chip collection that the control main frame obtains Breath.
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| CN109813963B (en) * | 2019-01-29 | 2021-07-13 | 珠海迈科智能科技股份有限公司 | Method and device for realizing frequency spectrum scanning by single chip microcomputer |
| CN109639839B (en) * | 2019-02-21 | 2021-12-31 | 山东大学 | Extensible signal data set system based on cloud platform and working method thereof |
| CN110441599B (en) * | 2019-07-15 | 2021-05-28 | 深圳市鼎阳科技股份有限公司 | Detection method and device for frequency spectrograph and readable storage medium |
| CN112763800B (en) * | 2021-02-04 | 2022-02-01 | 深圳市鼎阳科技股份有限公司 | Radio frequency scanning method of spectrum analyzer and spectrum analyzer |
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