CN117353833A - Wireless signal receiving method and related device based on interference detection - Google Patents
Wireless signal receiving method and related device based on interference detection Download PDFInfo
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- H—ELECTRICITY
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- H—ELECTRICITY
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Abstract
The invention relates to the technical field of signal processing, in particular to a wireless signal receiving method based on interference detection and a related device. Comprising the following steps: s001, receiving and demodulating a wireless radio frequency signal in a frequency range; s002, detecting and recording the intensity of the signal; s003, displaying all strong signals in sequence; s004, calculating and recording interference frequencies between strong signals; s005, screening out a recommended frequency when only a single device exists; s006, screening out a group of recommended frequencies when more than one device exists. The invention has the advantages of having interference detection function, being easy to operate and use and having good anti-interference effect, being based on interference detection, being capable of analyzing the interference condition between signals, visually displaying strong signals through the display screen, screening recommended frequency, having good anti-interference effect, solving the problems of lacking interference detection capability, being difficult to operate and use and lacking anti-interference effect in the existing wireless microphone audio transmission, and meeting the use requirement of the wireless microphone.
Description
Technical Field
The invention relates to the technical field of signal processing, in particular to a wireless signal receiving method based on interference detection and a related device.
Background
The transmission and processing of audio signals is an important function of modern electronic devices, where wireless devices are often used to transmit signals due to the large range of movement of users and the ease with which wired devices limit the user's activity in the context of a stage live performance or the like. Such as a wireless microphone device that can transmit audio signals through radio waves, employs a wireless transmitter at the user side, and is equipped with a wireless receiver to receive the user's voice.
With the development of society, mobile multimedia electronic devices, such as smart phones and motion cameras, are increasingly popular, and they easily generate interference signals when using a wireless network, affecting the normal operation of a wireless microphone. When the frequency point that wireless microphone used receives the interference, often can appear noisy noise to shorten transmission and receiving distance, still can lead to the radio signal of microphone to cut off frequently when serious, unable continuation work brings very big puzzlement for professional stage live performance.
When receiving wireless signals, the existing microphone equipment lacks corresponding interference detection capability, and is difficult to meet the demands of users. Some devices with related functions have complex operation, low visual degree, difficult use by common users, and lack of effective means for anti-interference, so that a new wireless signal receiving method and related devices based on interference detection are needed to solve the above-mentioned shortcomings.
Disclosure of Invention
In order to overcome the technical defects of lack of interference detection capability, difficulty in operation and use and lack of anti-interference effect in the existing wireless microphone audio transmission, the invention provides a wireless signal receiving method based on interference detection and a related device which have the advantages of interference detection function, easiness in operation and use and good anti-interference effect, and solves the defects.
In order to solve the problems, the invention is realized according to the following technical scheme:
the invention relates to a wireless signal receiving method based on interference detection, which is characterized by comprising the following steps:
s001, receiving and demodulating a wireless radio frequency signal in a frequency range;
s002, detecting and recording the intensity of the signal;
s003, displaying all strong signals in sequence;
s004, calculating and recording interference frequencies between strong signals;
s005, screening out a recommended frequency when only a single device exists;
s006, screening out a group of recommended frequencies when more than one device exists.
The receiving and demodulating the wireless radio frequency signal in the working frequency range specifically comprises the following steps: acquiring a receivable operating frequency range, wherein the lower limit of the operating frequency range is a minimum receiving frequency f min The upper limit of the operating frequency range is the maximum receiving frequency f max Then starting from the minimum receiving frequency, generating a carrier frequency, demodulating the received radio frequency signal, and then using a fixed step f step The carrier frequency is increased and modified, wherein the carrier frequency f satisfies the following formula:
f＝f min +f step *n(f min ≤f≤f max )
and n is the demodulation times, and the received wireless radio frequency signals are demodulated step by step until the maximum receiving frequency is reached, namely, the demodulation of the wireless radio frequency signals in the working frequency range is completed.
Said step length f step The range of the value of (2) is 30KHz to 70KHz.
The signal intensity is detected and recorded, and the signal intensity is specifically: in the demodulation process of step S001, each time demodulation is performed, whether a signal exists or not is detected, if no signal exists, the frequency is skipped, if the signal exists, the intensity of the signal is detected, the intensity of each frequency signal can be indicated by collecting voltage data excited by the intensity of the signal, and then the existence, frequency and intensity of the signal are recorded.
The method sequentially displays each strong signal, specifically: and (3) grouping the plurality of signal data recorded in the step S002 at fixed frequency intervals to obtain at least one group of continuous data, sequentially obtaining signals with strongest signals in each group, recording the signals as strong signals of the group, displaying the strong signals in a visual mode, and displaying the frequency and intensity information of the strong signals.
The range of the frequency interval is 30KHz to 70KHz.
The method comprises the steps of calculating and recording the interference frequency between strong signals, and specifically comprises the following steps: and (3) listing the strong signals in the step S003, combining the strong signals two by two, calculating the frequency of third-order intermodulation interference generated between the frequencies of the two strong signals, recording the frequency as interference frequency, calculating the next group of interference frequency if a plurality of scrambling frequencies are out of the working frequency range, and recording if a plurality of scrambling frequencies are in the working frequency range.
When only a single device is provided, a recommended frequency is screened out, specifically:
s501, summarizing the recorded frequency of the strong signal and the interference frequency;
s502, traversing all summarized frequencies, and screening out isolated frequencies;
s503, calculating the interference distance between each isolated frequency and the interference frequency;
s504, taking the isolated frequency with the farthest interference distance as the recommended frequency.
The steps of traversing the summarized frequencies, and screening out isolated frequencies are as follows: traversing the summarized frequencies to sequentially obtain the current frequency f 1 Is the nearest frequency f of (2) 2 If the distance between the current frequency and the nearest frequency exceeds the interference range delta f That is, the isolated frequency satisfies the following formula:
the current frequency is noted as an orphan frequency.
The value range of the interference range is 80KHz to 120KHz.
When more than one device is stored, a group of recommended frequencies are screened out, specifically: when more than one wireless microphone devices are connected, each device is required to be allocated with a recommended frequency, firstly, the recorded frequencies of the strong signals and the interference frequencies are summarized, the summarized frequencies are traversed, and isolated frequencies are screened out; then, according to the number of the devices, the frequencies with the corresponding number are taken out from the isolated frequencies to be combined, the total interference distance of each combination is traversed and calculated, and the combination with the farthest total interference distance is used as a group of recommended frequencies; the total interference distance is the sum of the interference distances of each frequency and other frequencies in the combination.
A wireless signal reception correlation apparatus based on interference detection, the wireless signal reception correlation apparatus comprising:
the receiving demodulation module is used for receiving and demodulating the wireless radio frequency signals in the frequency range;
the detection module is used for detecting and recording the intensity of the signal;
the display module is used for displaying all the strong signals in sequence;
the calculation module is used for calculating and recording the interference frequency between the strong signals;
the single screening module (5) is used for screening out a recommended frequency;
and the multi-screening module (6) is used for screening a group of recommended frequencies.
The wireless signal receiving related device is provided with an organic cover, a bottom plate, a panel and a circuit board, wherein the organic cover, the bottom plate and the panel are used for providing protection for the circuit board, the upper part of the bottom plate is fixedly provided with the organic cover, the organic cover is inverted U-shaped, one side of the bottom plate is fixedly provided with the panel, the bottom plate is fixedly provided with the circuit board, and the circuit board is used for carrying and receiving a demodulation module, a detection module, a display module, a calculation module and a screening module.
At least one display screen is arranged on the panel.
The circuit board on be provided with controller, power supply unit, signal receiver, signal demodulator, audio frequency controller, audio frequency processor and audio frequency output ware, the controller electricity is connected with power supply unit, the both sides of controller are provided with a set of signal receiver and signal demodulator respectively, signal receiver and signal demodulator are connected with audio frequency controller electricity, audio frequency controller's below is provided with audio frequency processor and audio frequency output ware.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a wireless signal receiving method based on interference detection and a related device, which have the advantages of interference detection function, easy operation and use and good anti-interference effect, the interference condition between signals can be analyzed by calculating the frequency of third-order intermodulation interference generated between the frequencies of two strong signals, the strong signals are visually displayed through a display screen, the use and the operation of a user are convenient, recommended frequencies can be screened out, the method has good anti-interference effect, the problems of lack of interference detection capability, difficult operation and use and lack of anti-interference effect in the existing wireless microphone audio transmission are solved, and the use requirement of a wireless microphone is met.
Drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic flow diagram of the method of the present invention;
FIG. 2 is a schematic flow chart of the method of step S005 of the present invention;
FIG. 3 is a schematic view of the apparatus of the present invention;
FIG. 4 is a schematic perspective view of the cover of the present invention;
FIG. 5 is a schematic perspective view of a hidden cover according to the present invention;
FIG. 6 is a schematic structural view of a panel of the present invention;
fig. 7 is a schematic structural view of the circuit board of the present invention.
In the figure: 1. a receiving demodulation module 2, a detection module 3, a display module 4, a calculation module 5, a single screening module 6, a multi-screening module 7, a bottom plate 8, a panel 801 and a display screen,
9. circuit boards 901, controllers 902, power supply components 903, signal receivers 904, signal demodulators 905, audio controllers 906, audio processors 907, audio output devices 908, mounting posts,
10. and a cover.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings, wherein it is apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
As shown in fig. 1, the method for receiving a wireless signal based on interference detection according to the present invention includes:
s001, receiving and demodulating a wireless radio frequency signal in a frequency range;
the step of receiving and demodulating the wireless radio frequency signal in the working frequency range specifically comprises the following steps: acquiring a receivable operating frequency range, wherein the lower limit of the operating frequency range is a minimum receiving frequency f min The upper limit of the operating frequency range is the maximum receiving frequency f max The working frequency range is the working range supported by the receiving equipment, and the minimum receiving frequency f min And a maximum receiving frequency f max The frequency band range of the frequency modulation wave is not exceeded, namely:
30Hz≤f min ≤f max ≤15000Hz，
further, for audio modulation, the frequency bandwidth occupied by the operating frequency range is within 200kHz, namely:
|f min -f max |＜200kHz
then, starting from the minimum receiving frequency, a carrier frequency is generated, which is used to obtain a baseband signal from the modulated signal, so as to restore the audio data of the wireless microphone, and the received wireless radio frequency signal is demodulated, wherein the carrier frequency is generated by a phase-locked loop chip.
Then in fixed step f step The carrier frequency is increased and modified, wherein the carrier frequency f satisfies the following formula:
f＝f min +f step *n(f min ≤f≤f max )
said step length f step In the range of 30KHz to 70KHz, as a preferred embodiment of the present application,said step length f step The value of (2) is 50KHz. And n is the demodulation times, and the received wireless radio frequency signals are demodulated step by step until the maximum receiving frequency is reached, namely, the demodulation of the wireless radio frequency signals in the working frequency range is completed.
S002, detecting and recording the intensity of the signal;
the signal intensity is detected and recorded, and the method specifically comprises the following steps: in the demodulation process of step S001, each time demodulation is performed, whether a signal exists or not is detected, if no signal exists, the frequency is skipped, if the signal exists, the intensity of the signal is detected, the intensity of each frequency signal can be indicated by collecting voltage data excited by the intensity of the signal, and then the existence, frequency and intensity of the signal are recorded.
S003, displaying all strong signals in sequence;
the method sequentially displays the strong signals, and specifically comprises the following steps: grouping the plurality of signal data recorded in the step S002 with a fixed frequency interval to obtain at least one group of continuous data, wherein the frequency interval has a value ranging from 30KHz to 70KHz, and the frequency interval has a value of 50KHz as a preferred implementation mode; and then sequentially acquiring signals with strongest signals in each group, recording the signals as strong signals of the group, displaying the strong signals in a visual mode, and displaying the frequency and intensity information of the strong signals.
S004, calculating and recording interference frequencies between strong signals;
the step of calculating and recording the interference frequency between strong signals specifically comprises the following steps: the strong signals of step S003 are listed, and are combined two by two, i.e. for each given strong signal, they are combined with other strong signals respectively once, the frequency of the third-order intermodulation interference generated between the frequencies of the two strong signals is calculated and recorded as the interference frequency, a number of scrambling frequencies are outside the working frequency range, the next set of interference frequencies is calculated, and a number of scrambling frequencies are within the working frequency range, and are recorded.
The method has the advantages that: when two or more interfering signals are received simultaneously, the combined frequency of the signals is sometimes exactly equal to or close to the received frequency range due to the nonlinear effect, so that the signals can be successfully received, wherein the influence of third-order intermodulation interference is the most serious, and therefore, statistics and recording of the interference frequency are required.
S005, screening out a recommended frequency when only a single device exists.
As shown in fig. 2, when there is only a single device, a recommended frequency is screened out, and this step specifically includes:
s501, summarizing the recorded frequency of the strong signal and the interference frequency;
the method has the advantages that: and adding the calculated interference frequency of the third-order intermodulation interference into the record of the frequency of the existing strong signal, so as to avoid the frequency band which is easy to generate interference.
S502, traversing all summarized frequencies, and screening out isolated frequencies;
the steps of traversing the summarized frequencies, and screening out isolated frequencies are as follows: traversing the summarized frequencies to sequentially obtain the current frequency f 1 Is the nearest frequency f of (2) 2 If the distance between the current frequency and the nearest frequency exceeds the interference range delta f The value range of the interference range is 80KHz to 120KHz, and as a preferred implementation mode of the application, the value of the interference range is 100KHz, namely, the isolated frequency meets the following formula:
|f 1 -f 2 |＞Δ f
the current frequency is noted as an orphan frequency.
S503, calculating the interference distance between each isolated frequency and the interference frequency;
s504, taking the isolated frequency with the farthest interference distance as the recommended frequency.
The recommended frequency is the wireless microphone signal receiving frequency obtained by the method, and the frequency is adopted for audio transmission, so that signal interference can be effectively avoided while the signal strength is maintained. The recommended frequency can be automatically deployed as the signal receiving frequency, or can be manually adjusted to the frequency by a user after visual display.
S006, screening out a group of recommended frequencies when more than one device is stored
When more than one device is stored, a group of recommended frequencies are screened out, specifically: when there is more than one device, for example, a plurality of wireless microphone devices are connected, it is necessary to assign a recommended frequency to each device so that the respective wireless microphones can operate simultaneously.
Firstly, summarizing the recorded frequencies of strong signals and interference frequencies, traversing the summarized frequencies, and screening out isolated frequencies; then, according to the number of the devices, a corresponding number of frequencies are taken out from the isolated frequencies for combination, and as a feasible implementation manner of the application, when two wireless microphones are connected at the same time, the frequencies are combined in pairs in the isolated frequencies, and the number of the co-generated combinations is as follows:
N＝(n*(n-1))/2；
where n is the number of isolated frequencies.
And traversing and calculating the total interference distance of each combination, wherein the total interference distance is the sum of the interference distances of each frequency and other frequencies in the combination, and the combination with the farthest total interference distance is used as a group of recommended frequencies.
As shown in fig. 3, the wireless signal receiving and correlating device based on interference detection according to the present invention includes:
the receiving demodulation module 1 is used for receiving and demodulating the wireless radio frequency signals in the frequency range;
a detection module 2 for detecting and recording the intensity of the signal;
the display module 3 is used for displaying all the strong signals in sequence;
a calculation module 4 for calculating and recording the interference frequency between the strong signals;
the single screening module 5 is used for screening out a recommended frequency;
and the multi-screening module 6 is used for screening out a group of recommended frequencies.
The expression forms of the receiving demodulation module 1, the detection module 2, the display module 3, the calculation module 4, the single screening module 5 and the multiple screening module 6 are not limited, that is, the modules may be specific mechanical devices or electronic devices, or may be functional modules abstracted from a computer system, or software and hardware combinations of the mechanical devices, the electronic devices and the computer system, which can generate corresponding effects.
Further, the wireless signal receiving related device is provided with an organic cover 10, a bottom plate 7, a panel 8 and a circuit board 9, the organic cover 10, the bottom plate 7 and the panel 8 are used for providing protection for the circuit board 9, the organic cover 10 is fixedly arranged on the upper portion of the bottom plate 7, as shown in fig. 4, the organic cover 10 is in an inverted U shape, the panel 8 is fixedly arranged on one side of the bottom plate 7, as shown in fig. 6, as a preferred embodiment of the application, at least one display screen 801 is arranged on the panel 8 and used for displaying each strong signal in sequence.
As shown in fig. 5, a circuit board 9 is fixedly mounted on the bottom plate 7, the circuit board 9 is used for carrying and receiving the demodulation module 1, the detection module 2, the display module 3, the calculation module 4 and the screening module 5, specifically, as shown in fig. 7, a controller 901, a power supply assembly 902, a signal receiver 903, a signal demodulator 904, an audio controller 905, an audio processor 906 and an audio output 907 are arranged on the circuit board 9, and as a preferred embodiment of the application, the controller 901 is a single-chip microcomputer system, and the single-chip microcomputer system is a single-chip microcomputer system of the prior art, such as the model number STM32F469/479, so that the application requirement of the controller 901 can be met. The controller 901 is electrically connected to the power supply assembly 902, the signal receiver 903, the signal demodulator 904, the audio controller 905, the audio processor 906, the audio output 907, and the display 801 to control the reception and processing of signals.
The controller 901 is provided with a phase-locked loop chip for generating carrier frequency, and the controller 901 is also provided with an ADC for acquiring voltage generated by signals, so that signal strength can be measured conveniently. The controller 901 is electrically connected with a power supply assembly 902 and is used for providing a power supply function, two sides of the controller 901 are respectively provided with a group of signal receivers 903 and signal demodulators 904, the signal receivers 903 are used for receiving wireless radio frequency signals, further, the signal receivers 903 are also provided with mounting column heads 908, the mounting column heads 908 extend out of the panel 8, and the mounting column heads 908 are used for mounting signal antennas; the signal demodulator 904 is used for demodulating the signal, the signal receiver 903 and the signal demodulator 904 are electrically connected with the audio controller 905, an audio processor 906 and an audio output device 907 are arranged below the audio controller 905, and the audio controller 905 and the audio processor 906 are used for processing the demodulated audio data and then outputting the audio data through the audio output device 907.
The present invention is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present invention are within the scope of the technical proposal of the present invention.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present application to describe, these descriptions should not be limited to these terms. These terms are only used to distinguish one from another. For example, a first may also be referred to as a second, and similarly, a second may also be referred to as a first, without departing from the scope of embodiments of the present application.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or device comprising such element.
In particular, the symbols and/or numerals present in the description, if not marked in the description of the figures, are not numbered.
The wireless signal receiving method and the related device have the advantages of having an interference detection function, being easy to operate and use and good in anti-interference effect, and being based on interference detection, the interference condition between signals can be analyzed by calculating the frequency of third-order intermodulation interference generated between the frequencies of two strong signals, the strong signals are visually displayed through the display screen 801, so that the use and operation of a user are convenient, recommended frequencies can be screened out, the good anti-interference effect is achieved, the problems that the existing wireless microphone audio transmission lacks interference detection capability, is difficult to operate and use and lacks the anti-interference effect are solved, and the use requirement of the wireless microphone is met.
Claims (10)
1. The wireless signal receiving method based on interference detection is characterized by comprising the following steps:
s001, receiving and demodulating a wireless radio frequency signal in a frequency range;
s002, detecting and recording the intensity of the signal;
s003, displaying all strong signals in sequence;
s004, calculating and recording interference frequencies between strong signals;
s005, screening out a recommended frequency when only a single device exists;
s006, screening out a group of recommended frequencies when more than one device exists.
2. The interference detection-based wireless signal receiving method according to claim 1, wherein: the receiving and demodulating the wireless radio frequency signal in the working frequency range specifically comprises the following steps: acquiring a receivable operating frequency range, wherein the lower limit of the operating frequency range is a minimum receiving frequency f min The upper limit of the operating frequency range is the maximum receiving frequency f max Then starting from the minimum receiving frequency, generating a carrier frequency, demodulating the received radio frequency signal, and then using a fixed step f step The carrier frequency is increased and modified, wherein the carrier frequency f satisfies the following formula:
f＝f min +f step *n(f min ≤f≤f max )
n is the demodulation times, the received wireless radio frequency signals are demodulated step by step until the maximum receiving frequency is reached, namely, the demodulation of the wireless radio frequency signals in the working frequency range is completed; said step length f step The range of the value of (2) is 30KHz to 70KHz.
3. The interference detection-based wireless signal receiving method according to claim 1, wherein: the signal intensity is detected and recorded, and the signal intensity is specifically: in the demodulation process of step S001, each time demodulation is performed, whether a signal exists or not is detected, if no signal exists, the frequency is skipped, if the signal exists, the intensity of the signal is detected, the intensity of each frequency signal can be indicated by collecting voltage data excited by the intensity of the signal, and then the existence, frequency and intensity of the signal are recorded.
4. The interference detection-based wireless signal receiving method according to claim 1, wherein: the method sequentially displays each strong signal, specifically: grouping the plurality of signal data recorded in the step S002 at fixed frequency intervals to obtain at least one group of continuous data, sequentially obtaining signals with strongest signals in each group, marking the signals as strong signals of the group, displaying the strong signals in a visual mode, and displaying the frequency and intensity information of the strong signals; the range of the frequency interval is 30KHz to 70KHz.
5. The interference detection-based wireless signal receiving method according to claim 1, wherein: the method comprises the steps of calculating and recording the interference frequency between strong signals, and specifically comprises the following steps: and (3) listing the strong signals in the step S003, combining the strong signals two by two, calculating the frequency of third-order intermodulation interference generated between the frequencies of the two strong signals, recording the frequency as interference frequency, calculating the next group of interference frequency if a plurality of scrambling frequencies are out of the working frequency range, and recording if a plurality of scrambling frequencies are in the working frequency range.
6. The interference detection-based wireless signal receiving method according to claim 1, wherein: when only a single device is provided, a recommended frequency is screened out, specifically:
s501, summarizing the recorded frequency of the strong signal and the interference frequency;
s502, traversing all summarized frequencies, and screening out isolated frequencies;
s503, calculating the interference distance between each isolated frequency and the interference frequency;
s504, taking the isolated frequency with the farthest interference distance as a recommended frequency;
the steps of traversing the summarized frequencies, and screening out isolated frequencies are as follows: traversing the summarized frequencies to sequentially obtain the current frequency f 1 Is the nearest frequency f of (2) 2 If the distance between the current frequency and the nearest frequency exceeds the interference range delta f That is, the isolated frequency satisfies the following formula:
|f 1 -f 2 |＞Δ f
the current frequency is noted as an isolated frequency; the value range of the interference range is 80KHz to 120KHz.
7. The interference detection-based wireless signal receiving method according to claim 1, wherein: when more than one device is stored, a group of recommended frequencies are screened out, specifically: when more than one wireless microphone devices are connected, each device is required to be allocated with a recommended frequency, firstly, the recorded frequencies of the strong signals and the interference frequencies are summarized, the summarized frequencies are traversed, and isolated frequencies are screened out; then, according to the number of the devices, the frequencies with the corresponding number are taken out from the isolated frequencies to be combined, the total interference distance of each combination is traversed and calculated, and the combination with the farthest total interference distance is used as a group of recommended frequencies; the total interference distance is the sum of the interference distances of each frequency and other frequencies in the combination.
8. A radio signal reception correlation device based on interference detection, which is applied to the radio signal reception method based on interference detection of claims 1 to 7, characterized in that the radio signal reception correlation device includes:
a receiving demodulation module (1) for receiving and demodulating a radio frequency signal in a frequency range;
a detection module (2) for detecting and recording the intensity of the signal;
the display module (3) is used for displaying all the strong signals in sequence;
a calculation module (4) for calculating and recording the interference frequency between the strong signals;
the single screening module (5) is used for screening out a recommended frequency;
and the multi-screening module (6) is used for screening a group of recommended frequencies.
9. The interference detection based wireless signal reception related apparatus according to claim 8, wherein: the wireless signal receiving related device is provided with an organic cover (10), a bottom plate (7), a panel (8) and a circuit board (9), wherein the organic cover (10), the bottom plate (7) and the panel (8) are used for providing protection for the circuit board (9), the organic cover (10) is fixedly arranged at the upper part of the bottom plate (7), the organic cover (10) is inverted U-shaped, the panel (8) is fixedly arranged at one side of the bottom plate (7), the circuit board (9) is fixedly arranged on the bottom plate (7), and the circuit board (9) is used for carrying a receiving demodulation module (1), a detection module (2), a display module (3), a calculation module (4) and a screening module (5); at least one display screen (801) is arranged on the panel (8).
10. The interference detection based wireless signal reception related apparatus according to claim 8, wherein: the circuit board (9) on be provided with controller (901), power pack (902), signal receiver (903), signal demodulator (904), audio controller (905), audio processor (906) and audio output ware (907), controller (901) electricity is connected with power pack (902), both sides of controller (901) are provided with a set of signal receiver (903) and signal demodulator (904) respectively, signal receiver (903) and signal demodulator (904) are connected with audio controller (905) electricity, the below of audio controller (905) is provided with audio processor (906) and audio output ware (907).
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