CN107864004A - The control method and its device of signal emission state - Google Patents
The control method and its device of signal emission state Download PDFInfo
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- CN107864004A CN107864004A CN201710890707.8A CN201710890707A CN107864004A CN 107864004 A CN107864004 A CN 107864004A CN 201710890707 A CN201710890707 A CN 201710890707A CN 107864004 A CN107864004 A CN 107864004A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message
Abstract
The present invention relates to a kind of control method and device of signal emission state, and it is to obtain in-band signaling switch state signal, signaling frequencies value, detection threshold value；If in-band signaling switch state signal corresponds to opening, the audio signal for carrying signaling is obtained；Signaling in audio signal is identified according to signaling frequencies value, calculates the energy value of signaling；If the energy value of signaling is more than detection threshold value, the State Transferring by transmitting keying signal is emission state.In the present invention, corresponded in in-band signaling switch state signal under opening, obtain the audio signal for carrying signaling, signaling in audio signal is identified according to signaling frequencies value and calculates the energy value of signaling, if the energy value of signaling is more than detection threshold value, the State Transferring by transmitting keying signal is emission state；Signaling is carried by audio signal, sharing audio transmission line, only needs tone frequency channel wire to complete transmitting control signal and the function of signal of communication to reach, reduces the use of circuit, save resource.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of control method and its device of signal emission state.
Background technology
At present, control signaling and signal of communication are related in communication process, general control signaling is in corresponding control line
Middle transmission, signal of communication are transmitted in corresponding tone frequency channel wire, and the completion of communication needs to use two kinds of lines of control line and tone frequency channel wire
Road, in telecommunication number of, lines can be made excessive, cause line resource to waste.
Sky is conversed, command, allocates various aerial missions, guarantor for example, civil aviation air-ground communication is air traffic control service
The important means of flight safety is demonstrate,proved, and airline implements necessity side that management of navigational affairs communication keeps commander's contact with aircraft
Formula.The use of civil aviaton's sender needs two launch-control lines and two tone frequency channel wires, respectively transmission of control signals and audio signal,
Its circuit is excessive, causes the wasting of resources.
The content of the invention
Based on this, separately being transmitted for control signaling and signal of communication causes line resource to waste problem, there is provided Yi Zhongxin
The control method of number emission state.
A kind of control method of signal emission state, comprises the following steps：
Obtain in-band signaling switch state signal, signaling frequencies value, detection threshold value；
If in-band signaling switch state signal corresponds to opening, the audio signal for carrying signaling is obtained；
Signaling in audio signal is identified according to signaling frequencies value, calculates the energy value of signaling；
If the energy value of signaling is more than detection threshold value, the State Transferring by transmitting keying signal is emission state.
The control method of above-mentioned signal emission state, in the case where in-band signaling switch state signal corresponds to opening, obtain
The audio signal of signaling is carried, the signaling in audio signal is identified according to signaling frequencies value and calculates the energy value of signaling, if letter
The energy value of order is more than detection threshold value, and the State Transferring by transmitting keying signal is emission state；Carried by audio signal
Signaling, sharing audio transmission line, only need tone frequency channel wire to complete transmitting control signal and the function of signal of communication to reach, subtract
The use of few circuit, saves resource.
A kind of control device of signal emission state, including：
Control signal acquisition module, for obtaining in-band signaling switch state signal, signaling frequencies value, detection threshold value；
Audio signal acquisition module, for when in-band signaling switch state signal corresponds to opening, obtaining and carrying letter
The audio signal of order；
Signaling energy computation module, for identifying the signaling in audio signal according to signaling frequencies value, calculate the energy of signaling
Value；
Emission state modular converter, if the energy value for signaling is more than detection threshold value, the shape of keying signal will be launched
State is converted to emission state.
The control device of above-mentioned signal emission state, in-band signaling on off state is obtained by control signal acquisition module and believed
Number, signaling frequencies value, detection threshold value, if in-band signaling switch state signal corresponds to opening, audio signal acquisition module
The audio signal for carrying signaling is obtained, signaling energy computation module is according to it is believed that make frequency values identify the signaling in audio signal simultaneously
The energy value of signaling is calculated, if the energy value of signaling is more than detection threshold value, emission state modular converter will launch keying signal
State Transferring be emission state；The device carries signaling by audio signal, sharing audio transmission line, only needs sound to reach
Frequency line completes transmitting control signal and the function of signal of communication, reduces the use of circuit, saves resource.
A kind of computer equipment, including memory and processor, computer-readable instruction, computer are stored with memory
When readable instruction is executed by processor so that the step of the control method of the above-mentioned signal emission state of computing device.
A kind of storage medium for being stored with computer-readable instruction, computer-readable instruction are held by one or more processors
During row so that one or more processors perform the step of control method of above-mentioned signal emission state.
The calculation machine equipment and storage medium of the control of above-mentioned signal emission state, signaling is carried by audio signal, altogether
With audio transmission line, only need tone frequency channel wire to complete transmitting control signal and the function of signal of communication to reach, reduce circuit
Use, save resource.
Brief description of the drawings
Fig. 1 is the flow chart of the control method of the signal emission state of one embodiment；
Fig. 2 is the information frame format chart of Slip serial port protocols in one of embodiment；
Fig. 3 is the relation curve between input calibration signal and the data signal peak value of sampling in one of embodiment；
Fig. 4 is the programming block diagram of the control method that FPGA realizes signal emission state in a preferred embodiment；
Fig. 5 is frequency detection module block diagram；
Fig. 6 is that six rank IIR bandstop filters realize block diagram；
Fig. 7 is the state procedure schematic diagram of the frequency detection module computing based on Goerzel algorithm；
Fig. 8 is the state procedure schematic diagram of control comparison module；
Fig. 9 is the index test figure in certain VHF radio；
Figure 10 is the structural representation of the control device of the signal emission state of one embodiment.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not intended to limit the scope of the invention.
Shown in Figure 1, Fig. 1 is the flow chart of the control method of the signal emission state of one embodiment of the invention, should
The control method of signal emission state, comprises the following steps in embodiment：
Step S101：Obtain in-band signaling switch state signal, signaling frequencies value, detection threshold value.
In this step, in-band signaling refers to be transmitted the technology of signaling using the frequency within information transfer frequency.
Signaling frequencies value refers to the frequency values of in-band signaling, wherein, a signaling frequencies value correspond to a detection threshold.
Step S102：If in-band signaling switch state signal corresponds to opening, the audio signal for carrying signaling is obtained.
In this step, the audio signal with signaling from user terminal is obtained, wherein, the frequency values of signaling are previous steps
Rapid signaling frequencies value.
Step S103：Signaling in audio signal is identified according to signaling frequencies value, calculates the energy value of signaling.
Step S104：It is transmitting by the State Transferring for launching keying signal if the energy value of signaling is more than detection threshold value
State.
The control method of above-mentioned signal emission state, in the case where in-band signaling switch state signal corresponds to opening, obtain
The audio signal of signaling is carried, the signaling in audio signal is identified according to signaling frequencies value and calculates the energy value of signaling, if letter
The energy value of order is more than detection threshold value, and the State Transferring by transmitting keying signal is emission state.This method is believed by audio
Number signaling is carried, sharing audio transmission line, only need tone frequency channel wire to complete transmitting control signal and signal of communication to reach
Function, the use of circuit is reduced, save resource.
Optionally, the solution of the present invention can be applied in civil aviation air-ground communication, realize control signal control line and audio
Signal control line road is multiplexed, it may not be necessary to the control hair function of civil aviaton's sender is completed in the case of control line, solves speech
With the separation of control signal wire, and the excessive problem of its long-distance transmission line, resource loss is reduced, function-stable is reliable, inspection
It is small to survey threshold error, can be applied well in civil aviation air-ground communication radio station.
Optionally, signaling is using tone signal.
In one of the embodiments, in-band signaling switch state signal, signaling frequencies value, the step of detection threshold value are obtained
Suddenly comprise the following steps：
The in-band signaling switch state signal of acquisition display control device transmission, signaling frequencies value, detection threshold value.
In the present embodiment, user can open or close in-band signaling function according to real needs by display control device,
Signaling frequencies value and corresponding detection threshold value required for selection, realize that signaling control frequency and thresholding are flexibly matched somebody with somebody
Put, it is versatile, add radio station using flexible and adaptability.
Specifically, user opens in-band signaling function, required for selection according to specific use demand by display control device
Signaling frequencies value and corresponding detection threshold value.Display control device sends in-band signaling on off state by asynchronous serial port to be believed
Number, signaling frequencies value, detection threshold value, wherein, the protocol format that serial ports is walked is chosen as Slip protocol formats, its information frame format
As shown in Fig. 2 in-band signaling on off state, signaling frequencies value and detection threshold value are controlled totally by 1 byte (3 byte) respectively.
In one of the embodiments, the step of obtaining detection threshold value, comprises the following steps：
Target alignment signal corresponding with the signaling frequencies value is obtained, obtains the target number of the target alignment signal
Signal peak；
The energy value according to corresponding to calculating the target number signal peak；
Energy value corresponding to the target number signal peak is preserved as detection threshold value.
In this embodiment, target number signal peak is obtained by target alignment signal, calculates target number signal peak
Corresponding energy value, detection threshold value is demarcated according to energy value corresponding to target number signal peak, makes calibration signal and detection
Thresholding has mapping relations, so that the corresponding detection threshold value demarcated of each signaling frequencies value, by complicated calculations
Amount is converted into processing of tabling look-up, and can substantially reduce operand, and reduction realizes difficulty, reduces the consumption of resource.
Specifically, after obtaining calibration signal, calibration signal is sampled to obtain data signal peak value, transported by Goerzel algorithm
Calculation obtains the energy value corresponding to data signal peak value, demarcates detection threshold according to the energy value of gained and preserves so that calibration
Signal has mapping relations with detection threshold, so that the corresponding detection threshold value demarcated of each signaling frequencies value.
Illustrate by taking the realization of FPGA softwares as an example, to sender input calibration signal, calibration signal is adjusted by FPGA
Trial work tool Chipscope samples to obtain data signal peak value, wherein it is desired to be carried out in the input reference signal of required demarcation
Repeatedly traversal sampling.Energy value corresponding to data signal peak computational is calculated with Goerzel algorithm by Matlab instruments, will
The energy value is stored in FPGA ROM as detection threshold, finally has a range of calibration signal and detection threshold
Mapping relations.
In one of the embodiments, the target number signal peak step for obtaining the target alignment signal includes
Following steps：
Multiple different default calibration signals are obtained, each default calibration signal is sampled, number corresponding to acquisition
Word signal peak,
Carried out curve fitting according to each default calibration signal and corresponding data signal peak value, obtain matched curve；
The target number signal peak of the target alignment signal is searched according to the matched curve.
In the present embodiment, by being carried out curve fitting to multiple calibration signals and corresponding data signal peak value, it can make
A range of calibration signal and data signal peak value have mapping relations, so as to institute in the range of calibration signal in the range of being somebody's turn to do
Some data signal peak values.When obtaining target alignment signal, data signal peak value can be obtained from matched curve rapidly, is counted
Energy value corresponding to calculation, reduce operand and realize difficulty.
Specifically, to sender input calibration signal, calibration signal is sampled to obtain data signal peak value, believed according to calibration
Number and digital signal peak carry out curve fitting.
If input calibration signal is U (units：DBm), signal is set to U when reaching analog-to-digital conversion front endad(unit：DBm),
Then：
Uad=U+G (1)
Wherein, G is the multiple of input calibration signal amplitude and analog-to-digital conversion front end signal amplitude, and G is constant, i.e. input letter
Number with analog-to-digital conversion front end signal should be linear relationship.
If now analog-to-digital conversion front end signal peak value is VP(unit：V), input load R, then according to signal energy and width
The transformational relation of degree has：
If analog-to-digital conversion digit is B, reference voltage Vref, then VPWith the data signal peak value V of samplingdpRelation be：
Comprehensive (2) and (3), calibration signal and digital signal peak have logarithmic relationship.Curve matching in the present embodiment
As a result as shown in figure 3, a range of calibration signal has logarithmic mapping relation with data signal peak value.The present embodiment is only fitted
The scope of 0dBm~-40dBm signals, has sampled 14 data and fits result, if desired for -60dBm can be fitted to, but it is too small
The easily examined instrument error of signal influences, and is had little significance in practice.Complicated calculations amount is converted into and tabled look-up by this method
Processing, can substantially reduce operand, and reduction realizes difficulty, reduces the consumption of resource.
In one of the embodiments, the step of energy value for calculating signaling, comprises the following steps：
Using signaling frequencies value as data source, pass through the energy value of Goerzel algorithm calculating signaling.
In the present embodiment, it is to realize that Goerzel algorithm is by Ge Zeer (Goertzel) algorithm to calculate signaling energy
The fast algorithm of Fourier transformation, according to sample frequency corresponding to the determination of the frequency of signal and using points, to reach complete cycle
Using beneficial to the periodicity of the twiddle factor in Fourier transformationIt is a kind of linear so as to which Fourier transformation operation be converted into
Filtering operation, the algorithm amount of calculation is small, efficiency high.
Specifically, Fourier transformation operation is converted into a kind of linear filtering computing, its recursive expression by Goerzel algorithm
For：
Because (5) formula has a complex multiplier, but because during the frequency of detection signal, energy spectrum is often only needed, no
Phase information is needed, its modulus square can be obtained
So input signal is real sequence, real multiplications can be used completely by calculating energy spectrum, never avoid answering for complexity
Number computing.Finally, the energy value that can obtain signaling is：
|X(k)|2=| yk(N)|2 (7)
In above-mentioned formula, x (n) represents time-domain sampling signal, vk(n) the middle output result of linear filtering computing, y are representedk
(n) the final output result of the linear filtering computing is represented, Fourier transformation points N characterizes the precision of frequency analysis, with Fu
In leaf transformation points N increase, the required time is longer, so needing to have chosen Fourier transformation points N in advance.
K is a certain Frequency point of Fourier transformation points N frequency separation, takes the integer after rounding up, i.e. k=0, and 1,
2,…,N-1.As setting signaling frequencies fkAfterwards, corresponding k values are k ≈ fk÷ Δ f, wherein, Δ f is frequency resolution, Fourier
Change points N, sample frequency fsRelation with frequency resolution Δ f is：
In one of the embodiments, it is further comprising the steps of before the step of calculating the energy value of signaling：
Operation coefficient according to needed for different signaling frequencies preset values obtains Goerzel algorithm, wherein, operation coefficient bag
Include Fourier transformation points and coefficient of frequency calculates the factor；
Mapping table is established according to the relation of different signaling frequencies preset value and operation coefficient；
Using signaling frequencies value as data source, the step of energy value of signaling is calculated by Goerzel algorithm, including it is following
Step：
Corresponding operation coefficient is searched according to signaling frequencies value in the mapping table；
The energy value of signaling is calculated by Goerzel algorithm according to operation coefficient.
In the present embodiment, by establishing signaling frequencies value to the mapping table of operation coefficient, realize computing coefficient it is flexible
Change, when the signaling frequencies value changes of setting, operation coefficient also changes therewith, reduces the resource loss on algorithm, accelerates meter
Calculate speed.
Specifically, in Goerzel algorithm, signaling frequencies fkChange, the precision of frequency analysis changes, and causes Fourier to become
The value for changing points N changes；Meanwhile the also corresponding change of corresponding k values, cause coefficient of frequency to calculate the factor
Change.The energy value that present design has Q possible signaling frequencies values needs to detect, and sets which signaling frequencies value, just counts
The energy of which frequency values is calculated, i.e., only needs to calculate some Frequency point every time.Calculate and be required for according to signaling frequencies value every time
Fourier is chosen to change points N value and calculate the coefficient of frequency calculating factorValue, expend the substantial amounts of calculating time
And computing resource.Realize operation coefficient by establishing mapping table, Fourier change points N value and calculate coefficient of frequency calculate because
SonThe flexible transformation of value, when the signaling frequencies change of setting, corresponding operation coefficient is directly inputted into dagger-axe
In Ze Er algorithms, calculating process is greatly simplified, accelerates calculating speed, reduces resource consumption.
In one of the embodiments, the control method of signal emission state is further comprising the steps of：
The signaling of audio signal is filtered out, obtains audio signal to be launched；
When transmitting keying signal condition is emission state, audio signal to be launched is transmitted；
In the present embodiment, the signaling composition in audio signal is filtered out, when transmitting keying signal condition is emission state
When, the audio signal after signaling is filtered out is sent to post-module, carries out audio frequency process, realizes the transmission of signal.
In one of the embodiments, filter out the signaling in audio signal, obtain audio signal step to be launched include with
Lower step：
The signaling in audio signal is filtered out by infinite impulse response digital filter, wherein, IIR numeral
The parameter of wave filter is chosen according to signaling frequencies value.
In the present embodiment, the signaling of audio signal is filtered out by infinite impulse response digital filter, signaling is filtered out
Audio signal afterwards is sent to post-module, carries out audio frequency process, realizes the transmission of signal.
Shown in Figure 4, Fig. 4 is the programming of the control method that FPGA realizes signal emission state in a preferred embodiment
Block diagram.Programming block diagram includes frequency detection module 401 and filter module 402 in embodiment.
In the present embodiment, the control method of signal emission state can be in FPGA (Field-Programmable Gate
Array, FPGA) in realize.FPGA uses modularization programming, and scale is big, and integrated level is high, and processing speed is fast,
Execution efficiency is high, can complete the sequential logic design of complexity, and flexible in programming, convenient and simple, and programming can be repeated several times, utilize weight
New configuration can reduce the expense of hardware, and suitable task is relatively fixed or situation about repeating and advanced development, the field of system development
Close so that the control method of signal emission state can be based on existing broadcasting station structure, without increasing any hardware, realize control letter
Number control line is multiplexed with audio signal control circuit, it may not be necessary to the control hair function of sender is completed in the case of control line,
Solve the separation of speech and control signal wire, and the excessive problem of its long-distance transmission line, reduce resource loss, function is steady
Fixed reliable, detection threshold error is small, can be applied well in civil aviation air-ground communication radio station.
Wherein, frequency detection module 401 includes Fourier transformation operation coefficient control module 501, thresholding control module
502nd, the frequency detection module 503 based on Goerzel algorithm, control comparison module 504, as shown in Figure 5；Filter module 402 wraps
The cascade three times that second-order difference equation module 601 and operation coefficient control module 602 combine is included, as shown in Figure 6.
Specifically, user can open or close in-band signaling function, selection according to real needs by display control device
Signaling frequencies value and corresponding detection threshold value, display control device, which passes through asynchronous serial port and sends in-band signaling on off state, to be believed
Number, signaling frequencies value, detection threshold value sent to in-band signaling processing module.Wherein, form used in asynchronous serial port is chosen as
Slip protocol formats.
If in-band signaling switch state signal corresponds to opening, receiver obtains the audio signal for carrying signaling.
Fourier transformation operation coefficient control module 501 identifies the signaling of audio signal carrying according to signaling frequencies value, and
Fourier transformation operation coefficient and Fourier transformation operation coefficient is sent out according to corresponding to signaling frequencies value is searched in the mapping table
The frequency detection module 503 based on Goerzel algorithm is delivered to, carries out signaling energy value calculating, wherein, based on Goerzel algorithm
The calculating state procedure of frequency detection module 503 is illustrated in figure 7：
The state machine 701 of difference equation realizes the calculating process of following formula, and concrete operation formula is：
The module takes a multiplier.Wherein,It is decimal in theory, expands 2 in specific implementation15Times
Stored after being converted into integer, be easy to the computing in FPGA, and quantization error can be reduced.Multiplier output reduces 215It is defeated to balance
Go out scope, eliminate and quantify gain effects.
The state machine 702 of energy spectrum realizes the computing of following formula：
The module takes two multipliers, and one is used for calculating square, and multiplexing twice, calculatesWithSeparately
One is used for calculating
Thresholding control module 502 sends detection threshold value to comparison module 504 is controlled, and control comparison module 504 will be based on
The energy value and corresponding threshold value that the frequency detection module 503 of Goerzel algorithm calculates are compared realization, its state procedure
As shown in figure 8, when in-band signaling switch state signal corresponds to opening, gone to by idle condition 801 and start Ge Zeer
Computing state 802, wait being gone to immediately and is disposed state 803, state goes to thresholding and compared after the mark that is disposed arrives
Output result state 804.Wherein each cycle period calculates the signaling energy in cycle certain time, waits the state that is disposed
After the completion of output transmitting keying signal state, subsequently into next energy balane cycle, calculate in-band signaling energy value in real time,
Obtain the state change of transmitting keying signal.
In filter module 402, second-order difference equation submodule 601 and operation coefficient control module 602 realize six ranks
IIR digital band-reject filter.
Wherein, second-order difference equation submodule 601 is for calculating equation below：
a0×y(n)+a1×y(n-1)+a2× y (n-2)=b0×x(n)+b1×x(n-1)+b2×x(n-2) (10)
Wherein a0、a1、a2、b0、b1、b2For operation coefficient, x (n), x (n-1), x (n-2) are that signal is inputted and its postponed, y
(n), y (n-1), y (n-2) are signal output and its delay.In the iir digital filter of the present embodiment is realized, a0=b0=b2
=1.
Operation coefficient control module 602 is the operation coefficient for controlling second-order difference equation, is chosen according to signaling frequencies
Corresponding filter coefficient, it is versatile, the even number infinite impulse response digital filter of higher order can be designed with it.
It is shown in Figure 9, it is index test figure of the present embodiment in certain VHF radio.It can be seen that this reality
Applying example, function is normal in actual applications, and error is not more than 1dB in the range of 0 to 40dBm detection threshold, while can pass through figure
4 DFT points control, operation coefficient controls (401) and Fig. 8 three operation coefficients to control to change or increase signaling frequencies
Configuration, it is versatile.
According to the control method of above-mentioned signal emission state, the present invention also provides a kind of control dress of signal emission state
Put, just the embodiment of the control device of the signal emission state of the present invention is described in detail below.
It is shown in Figure 10, it is the structural representation of the control device of the signal emission state of one embodiment of the invention.
The control device of signal emission state in the embodiment includes：
Control signal acquisition module 901, for obtaining in-band signaling switch state signal, signaling frequencies value, detection threshold
Value；
Audio signal acquisition module 902, for when in-band signaling switch state signal corresponds to opening, obtaining and carrying
The audio signal of signaling；
Signaling energy computation module 903, for identifying the signaling in audio signal according to signaling frequencies value, calculate signaling
Energy value；
Emission state modular converter 904, if the energy value for signaling is more than detection threshold value, keying signal will be launched
State Transferring is emission state.
The control device of above-mentioned signal emission state, in-band signaling on off state is obtained by control signal acquisition module and believed
Number, signaling frequencies value, detection threshold value, if in-band signaling switch state signal corresponds to opening, audio signal acquisition module
The audio signal for carrying signaling is obtained, signaling energy computation module is according to it is believed that make frequency values identify the signaling in audio signal simultaneously
The energy value of signaling is calculated, if the energy value of signaling is more than detection threshold value, emission state modular converter will launch keying signal
State Transferring be emission state；The device carries signaling by audio signal, sharing audio transmission line, only needs sound to reach
Frequency line completes transmitting control signal and the function of signal of communication, reduces the use of circuit, saves resource.
In one of the embodiments, control signal acquisition module 901 obtains the in-band signaling switch that display control device is sent
Status signal, signaling frequencies value, detection threshold value.
In one of the embodiments, control signal acquisition module 901 obtains target alignment corresponding with signaling frequencies value
Signal, obtain the target number signal peak of target alignment signal；The energy value according to corresponding to calculating target number signal peak；
Energy value corresponding to target number signal peak is preserved as detection threshold value.
In one of the embodiments, control signal acquisition module 901 obtains multiple different default calibration signals, to each
Default calibration signal is sampled, data signal peak value corresponding to acquisition, is believed according to each default calibration signal and corresponding numeral
Number peak value carries out curve fitting, and obtains matched curve；The target number that the target alignment signal is searched according to matched curve is believed
Number peak value.
In one of the embodiments, signaling energy computation module 903 passes through dagger-axe pool using signaling frequencies value as data source
Your algorithm calculates the energy value of signaling.
In one of the embodiments, signaling energy computation module 903 obtains dagger-axe according to different signaling frequencies preset values
Operation coefficient needed for Ze Er algorithms, wherein, operation coefficient includes Fourier transformation points and coefficient of frequency calculates the factor；Root
Mapping table is established according to the relation of different signaling frequencies preset value and operation coefficient；Searched in the mapping table according to signaling frequencies value
Corresponding operation coefficient；The energy value of signaling is calculated by Goerzel algorithm according to operation coefficient.
In one of the embodiments, emission state modular converter 904 filters out the signaling in audio signal, obtains to be launched
Audio signal；When it is emission state to launch keying signal condition, audio signal to be launched is transmitted.
A pair of the control method 1 of the control device of the signal emission state of the present invention and the signal emission state of the present invention
Should, the technical characteristic and its advantage illustrated in the embodiment of the control method of above-mentioned signal emission state is applied to signal
In the embodiment of the control device of emission state, hereby give notice that.
The present invention also provides a kind of computer equipment, including memory and processor, and being stored with computer in memory can
Reading instruction, when computer-readable instruction is executed by processor so that the signal emitting shape of any of the above-described embodiment of computing device
The step of control method of state.
A kind of storage medium for being stored with computer-readable instruction of the present invention, computer-readable instruction is by one or more
When managing device execution so that one or more processors perform the step of the control method of the signal emission state of any of the above-described embodiment
Suddenly.
Signal transmitting in method and above-described embodiment in the computer equipment and performed by the readable storage medium storing program for executing
The control method of state is identical, in the case where in-band signaling switch state signal corresponds to opening, obtains the audio letter for carrying signaling
Number, the signaling in audio signal is identified according to signaling frequencies value and calculates the energy value of signaling, if the energy value of signaling is more than inspection
Threshold value is surveyed, the State Transferring by transmitting keying signal is emission state；Signaling, sharing audio transmission are carried by audio signal
Line, only need tone frequency channel wire to complete transmitting control signal and the function of signal of communication to reach, reduce the use of circuit, save
Resource.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, lance is not present in the combination of these technical characteristics
Shield, all it is considered to be the scope of this specification record.
Above example only expresses the several embodiments of the present invention, and its description is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art,
On the premise of not departing from present inventive concept, various modifications and improvements can be made, these belong to protection scope of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (11)
1. a kind of control method of signal emission state, it is characterised in that comprise the following steps：
Obtain in-band signaling switch state signal, signaling frequencies value, detection threshold value；
If the in-band signaling switch state signal corresponds to opening, the audio signal for carrying signaling is obtained；
Signaling in the audio signal is identified according to the signaling frequencies value, calculates the energy value of the signaling；
If the energy value of the signaling is more than the detection threshold value, the State Transferring by transmitting keying signal is emission state.
2. the control method of signal emission state according to claim 1, it is characterised in that the acquisition in-band signaling is opened
The step of off status signal, signaling frequencies value, detection threshold value, comprises the following steps：
The in-band signaling switch state signal of acquisition display control device transmission, signaling frequencies value, detection threshold value.
3. the control method of signal emission state according to claim 1, it is characterised in that obtain the step of detection threshold value
Suddenly comprise the following steps：
Target alignment signal corresponding with the signaling frequencies value is obtained, obtains the target number signal of the target alignment signal
Peak value；
The energy value according to corresponding to calculating the target number signal peak；
Energy value corresponding to the target number signal peak is preserved as detection threshold value.
4. the control method of signal emission state according to claim 3, it is characterised in that described to obtain the target school
The target number signal peak step of calibration signal comprises the following steps：
Multiple different default calibration signals are obtained, each default calibration signal is sampled, numeral letter corresponding to acquisition
Number peak value；
Carried out curve fitting according to each default calibration signal and corresponding data signal peak value, obtain matched curve；
The target number signal peak of the target alignment signal is searched according to the matched curve.
5. the control method of signal emission state according to claim 1, it is characterised in that the calculating signaling
The step of energy value, comprises the following steps：
Using the signaling frequencies value as data source, the energy value of the signaling is calculated by Goerzel algorithm.
6. the control method of signal emission state according to claim 5, it is characterised in that the calculating signaling
It is further comprising the steps of before the step of energy value：
Operation coefficient according to needed for different signaling frequencies preset values obtains Goerzel algorithm, wherein, the operation coefficient bag
Include Fourier transformation points and coefficient of frequency calculates the factor；
Mapping table is established according to the relation of different signaling frequencies preset value and operation coefficient；
It is described using the signaling frequencies value as data source, the step of energy value of the signaling is calculated by Goerzel algorithm,
Comprise the following steps：
Operation coefficient corresponding to being searched according to the signaling frequencies value in the mapping table；
The energy value of the signaling is calculated by Goerzel algorithm according to the operation coefficient.
7. the control method of signal emission state according to claim 1, it is characterised in that further comprising the steps of：
The signaling in the audio signal is filtered out, obtains audio signal to be launched；
When the transmitting keying signal condition is emission state, the audio signal to be launched is transmitted.
8. the control method of signal emission state according to claim 7, it is characterised in that described to filter out the audio letter
Signaling in number, obtain the audio signal step to be launched and comprise the following steps：
Signaling in the audio signal is filtered out by infinite impulse response digital filter, wherein, the IIR
The parameter of digital filter is chosen according to signaling frequencies value.
A kind of 9. control device of signal emission state, it is characterised in that including：
Control signal acquisition module, for obtaining in-band signaling switch state signal, signaling frequencies value, detection threshold value；
Audio signal acquisition module, for when the in-band signaling switch state signal corresponds to opening, obtaining and carrying letter
The audio signal of order；
Signaling energy computation module, for identifying the signaling in the audio signal according to the signaling frequencies value, described in calculating
The energy value of signaling；
Emission state modular converter, if the energy value for the signaling is more than detection threshold value, the shape of keying signal will be launched
State is converted to emission state.
10. a kind of computer equipment, including memory and processor, computer-readable instruction is stored with the memory, institute
When stating computer-readable instruction by the computing device so that the computing device such as any one of claim 1 to 8 institute
The step of stating the control method of signal emission state.
11. a kind of storage medium for being stored with computer-readable instruction, the computer-readable instruction is handled by one or more
When device performs so that one or more processors perform the control of the signal emission state as any one of claim 1 to 8
The step of method.
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| CN111431562A (en) * | 2020-03-05 | 2020-07-17 | 许昌北邮万联网络技术有限公司 | Fire-fighting information transmission system, method and device |
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| CN102150375A (en) * | 2008-09-15 | 2011-08-10 | 爱尔比奎特公司 | Methods for in-band signaling through enhanced variable-rate codecs |
| US20110287736A1 (en) * | 2008-09-15 | 2011-11-24 | Airbiquity Inc. | Methods for in-band signaling through enhanced variable-rate codecs |
| CN107193527A (en) * | 2017-05-19 | 2017-09-22 | 深圳市金立通信设备有限公司 | A kind of audio control method, terminal and computer-readable recording medium |
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| CN102150375A (en) * | 2008-09-15 | 2011-08-10 | 爱尔比奎特公司 | Methods for in-band signaling through enhanced variable-rate codecs |
| US20110287736A1 (en) * | 2008-09-15 | 2011-11-24 | Airbiquity Inc. | Methods for in-band signaling through enhanced variable-rate codecs |
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