CN112448777A - Multifunctional wireless signal detection method - Google Patents
Multifunctional wireless signal detection method Download PDFInfo
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- CN112448777A CN112448777A CN201910834417.0A CN201910834417A CN112448777A CN 112448777 A CN112448777 A CN 112448777A CN 201910834417 A CN201910834417 A CN 201910834417A CN 112448777 A CN112448777 A CN 112448777A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
- H04B2001/1072—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal by tuning the receiver frequency
Abstract
The invention relates to the technical field of radio, and discloses a multifunctional wireless signal detection method which comprises a microcontroller, wherein a signal port of the microcontroller is electrically connected with a receiver through a first serial peripheral interface, a signal input end of the receiver is electrically connected with a radio frequency mixer, a signal port of the radio frequency mixer is electrically connected with the microcontroller through a second serial peripheral interface, the signal port of the microcontroller is electrically connected with a first I/0 interface and a second I/0 interface, the signal port of the first I/0 interface is electrically connected with a relay, a signal output end of the relay is electrically connected with a liquid crystal display screen, the signal port of the second I/0 interface is electrically connected with an LDE indicator lamp, the signal port of the microcontroller is electrically connected with a first asynchronous transceiving transmitter and a second asynchronous transceiving transmitter, and the signal port of the first asynchronous transceiving transmitter is electrically connected with a transceiver. The full-band wireless signal is detected at 30MHz-3GHz, the later period can be randomly expanded, the false alarm rate is reduced to 0.5%, and the signal frequency can be identified.
Description
Technical Field
The invention relates to the technical field of radio, in particular to a multifunctional wireless signal detection method.
Background
The current mobile phone signal detector on the market adopts a simulation detection mode, and the specific implementation process is as follows, so that the implementation principle is as follows: the mobile phone uplink signal is received through the external antenna, the out-of-band signal is filtered through the specific sound meter filter, the signal is amplified through the gain tube, the false alarm rate of the signal is increased through the primary sound meter filter, the signal is transmitted to the analog logarithmic detector, and finally the signal is transmitted to the MCU for A/D conversion, so that the intensity of the mobile phone uplink signal in the frequency band is obtained.
Objective disadvantages of the prior art: the false alarm rate is high, because the analog detection mainly filters out the unwanted signal through the sound table filter, but because of the technical reason of the filter, the suppression range of each level of sound table filter is only about 30dB-50dB, so when a very large interference signal exists outside the band, the false alarm can be realized by using the analog detector; the analog detection has a plurality of channels, and for technical reasons, a channel similar to the channel is added to the frequency band signal to be detected, for example, if the CDMA needs to be detected, a detection link of the CDMA needs to be added, and if the DCS needs to be detected, another DCS detection link needs to be added, so that the equipment is large in size and high in cost; the expandability is poor, the digital detector can detect any frequency band of 30MHz-6GHz, and the frequency band can be expanded according to the requirement later, but the analog detector cannot realize the point; the power consumption is high, the maximum power consumption of the digital detector is less than or equal to 1W, and the power consumption of the 6-path analog detector reaches more than 3W.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multifunctional wireless signal detection method, which has the advantages of low false alarm rate, identifiable signal frequency, detection signal sensitivity, low power consumption, small volume and the like, and solves the problems of high false alarm rate, multiple channels, poor expandability and high power consumption in the prior art.
(II) technical scheme
In order to achieve the purposes of low false alarm rate, signal frequency identification, signal sensitivity detection, low power consumption and small volume, the invention provides the following technical scheme: a multifunctional wireless signal detection method comprises a microcontroller, wherein a signal port of the microcontroller is electrically connected with a receiver through a first serial peripheral interface, a signal input end of the receiver is electrically connected with a radio frequency mixer, a signal port of the radio frequency mixer is electrically connected with the microcontroller through a second serial peripheral interface, a signal port of the microcontroller is electrically connected with a first I/0 interface and a second I/0 interface, a signal port of the first I/0 interface is electrically connected with a relay, a signal output end of the relay is electrically connected with a liquid crystal display screen, a signal port of the second I/0 interface is electrically connected with an LDE indicator lamp, a signal port of the microcontroller is electrically connected with a first asynchronous receiving and transmitting device and a second asynchronous receiving and transmitting device, and a signal port of the first asynchronous receiving and transmitting device is electrically connected with a transceiver, the signal output end of the transceiver is electrically connected with the photoelectric isolator, the signal output end of the optical isolator is electrically connected with the communication interface, the signal port of the second asynchronous transceiver transmitter is electrically connected with the network port converter, the signal output end of the network port converter is electrically connected with the internal bus, and the signal output end of the internal bus is electrically connected with the socket connector.
Preferably, the signal output end of the microcontroller is electrically connected with a memory through a synchronous serial bus.
Preferably, the LED indicator lamps include an alarm indicator lamp, a power indicator lamp and an operation indicator lamp.
Preferably, the chip model of the microcontroller is STM32F103VET6, and the liquid crystal inside the liquid crystal display screen is LCD1602 industrial character type liquid crystal.
Preferably, the radio frequency mixer and the receiver are respectively RF2052 and SI 4330.
Preferably, the model of the transceiver is SP485 REN.
Preferably, the type of the internal network port of the socket connector is an RJ45 network port.
A multifunctional wireless signal detection method comprises the following steps:
s1, acquiring an uplink signal transmitted by the mobile phone through the antenna by the signal, converting the electromagnetic signal into an analog electric signal, and converting the high-frequency signal into a low-frequency signal through the radio frequency mixer;
s2, sending the converted low-frequency signal to a signal receiving chip of a receiver for processing;
s3, transmitting the relevant processing signal to a microprocessor for processing the relevant signal information;
s4, transmitting the processed signal to the main chip of the microprocessor for information centralized processing;
s5, displaying the processed information on a liquid crystal display screen and controlling a relay to perform subsequent actions;
and S6, sending the related detection information to the background through the communication interface.
(III) advantageous effects
Compared with the prior art, the invention provides a multifunctional wireless signal detection method, which has the following beneficial effects:
the full-band wireless signal is used for detecting 30MHz-3GHz, the later period can be randomly expanded, the false alarm rate is reduced to 0.5%, the signal frequency can be identified, the signal intensity identification precision reaches 0.5dB, the power consumption is low, and the module with the length and the width of 5cm can be made at the minimum, so that the cost is extremely low.
Drawings
FIG. 1 is a system diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a multifunctional wireless signal detection method includes a microcontroller, a chip model of the microcontroller is STM32F103VET6, a signal port of the microcontroller is electrically connected with a receiver through a first serial peripheral interface, a signal input end of the receiver is electrically connected with a radio frequency mixer, models of the radio frequency mixer and the receiver are RF2052 and SI4330 respectively, a signal port of the radio frequency mixer is electrically connected with the microcontroller through a second serial peripheral interface, a signal port of the microcontroller is electrically connected with a first I/0 interface and a second I/0 interface, a signal port of the first I/0 interface is electrically connected with a relay, a signal output end of the relay is electrically connected with a liquid crystal display screen, liquid crystal inside the liquid crystal display screen is LCD1602 industrial character type liquid crystal, a signal port of the second I/0 interface is electrically connected with an LDE indicator lamp, and a signal port of the microcontroller is electrically connected with a first asynchronous transceiver and a second asynchronous transceiver The signal port of the first asynchronous receiving and transmitting transmitter is electrically connected with a transceiver, the model of the transceiver is SP485REN, the signal output end of the transceiver is electrically connected with a photoelectric isolator, the signal output end of the optical isolator is electrically connected with a communication interface, the signal port of the second asynchronous receiving and transmitting transmitter is electrically connected with a network port converter, the signal output end of the network port converter is electrically connected with an internal bus, the signal output end of the internal bus is electrically connected with a socket connector, and the model of the internal network port of the socket connector is RJ45 network port.
Specifically, the signal output end of the microcontroller is electrically connected with a memory through a synchronous serial bus, so that data storage is facilitated.
Specifically, the LED indicator lamps comprise an alarm indicator lamp, a power indicator lamp and an operation indicator lamp, and each indicator lamp is turned on to represent different indication information.
A multifunctional wireless signal detection method comprises the following steps:
s1, acquiring an uplink signal transmitted by the mobile phone through the antenna by the signal, converting the electromagnetic signal into an analog electric signal, and converting the high-frequency signal into a low-frequency signal through the radio frequency mixer;
s2, sending the converted low-frequency signal to a signal receiving chip of a receiver for processing;
s3, transmitting the relevant processing signal to a microprocessor for processing the relevant signal information;
s4, transmitting the processed signal to the main chip of the microprocessor for information centralized processing;
s5, displaying the processed information on a liquid crystal display screen and controlling a relay to perform subsequent actions;
and S6, sending the related detection information to the background through the communication interface.
When the mobile phone uplink signal processing device is used, signals are acquired through an antenna and transmitted by a mobile phone, electromagnetic signals are converted into analog electric signals, high-frequency signals are converted into low-frequency signals through a radio frequency mixer, the converted low-frequency signals are sent to a signal receiving chip of a receiver to be processed, related processed signals are sent to a microprocessor to be processed, the processed signals are transmitted to a main chip of the microprocessor again to be processed in a centralized mode, the processed information is displayed on a liquid crystal display screen, a relay is controlled to perform follow-up action, related detection information is sent to a background through a communication interface, all data are transmitted to the inside of a storage through a synchronous serial bus, and recording is facilitated.
In summary, the multifunctional wireless signal detection method has the advantages that the full-band wireless signal is detected at 30MHz-3GHz, the later period can be randomly expanded, the false alarm rate is reduced to 0.5%, the signal frequency can be identified, the signal intensity identification precision reaches 0.5dB, the power consumption is low, a module with the length and the width of 5cm can be made at the minimum, and the cost is extremely low.
The related modules involved in the system are all hardware system modules or functional modules combining computer software programs or protocols with hardware in the prior art, and the computer software programs or the protocols involved in the functional modules are all known in the technology of persons skilled in the art, and are not improvements of the system; the improvement of the system is the interaction relation or the connection relation among all the modules, namely the integral structure of the system is improved, so as to solve the corresponding technical problems to be solved by the system.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A multifunctional wireless signal detection method comprises a microcontroller, and is characterized in that: the signal port of the microcontroller is electrically connected with a receiver through a first serial peripheral interface, the signal input end of the receiver is electrically connected with a radio frequency mixer, the signal port of the radio frequency mixer is electrically connected with the microcontroller through a second serial peripheral interface, the signal port of the microcontroller is electrically connected with a first I/0 interface and a second I/0 interface, the signal port of the first I/0 interface is electrically connected with a relay, the signal output end of the relay is electrically connected with a liquid crystal display screen, the signal port of the second I/0 interface is electrically connected with an LDE indicator lamp, the signal port of the microcontroller is electrically connected with a first asynchronous transceiving transmitter and a second asynchronous transceiving transmitter, the signal port of the first asynchronous transceiving transmitter is electrically connected with a transceiver, and the signal output end of the transceiver is electrically connected with an optoelectronic isolator, the signal output end of the optical isolator is electrically connected with a communication interface, the signal port of the second asynchronous receiving and transmitting transmitter is electrically connected with a network port converter, the signal output end of the network port converter is electrically connected with an internal bus, and the signal output end of the internal bus is electrically connected with a socket connector.
2. The method as claimed in claim 1, wherein the method further comprises: and the signal output end of the microcontroller is electrically connected with a memory through a synchronous serial bus.
3. The method as claimed in claim 1, wherein the method further comprises: the LED indicator lamp comprises an alarm indicator lamp, a power indicator lamp and an operation indicator lamp.
4. The method as claimed in claim 1, wherein the method further comprises: the chip model of the microcontroller is STM32F103VET6, and the liquid crystal inside the liquid crystal display screen is LCD1602 industrial character type liquid crystal.
5. The method as claimed in claim 1, wherein the method further comprises: the radio frequency mixer and receiver are of RF2052 and SI4330 model, respectively.
6. The method as claimed in claim 1, wherein the method further comprises: the model of the transceiver is SP485 REN.
7. The method as claimed in claim 1, wherein the method further comprises: the type of the internal network port of the socket connector is RJ45 network port.
8. A multifunctional wireless signal detection method is characterized by comprising the following steps:
s1, acquiring an uplink signal transmitted by the mobile phone through the antenna by the signal, converting the electromagnetic signal into an analog electric signal, and converting the high-frequency signal into a low-frequency signal through the radio frequency mixer;
s2, sending the converted low-frequency signal to a signal receiving chip of a receiver for processing;
s3, transmitting the relevant processing signal to a microprocessor for processing the relevant signal information;
s4, transmitting the processed signal to the main chip of the microprocessor for information centralized processing;
s5, displaying the processed information on a liquid crystal display screen and controlling a relay to perform subsequent actions;
and S6, sending the related detection information to the background through the communication interface.
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| CN201910834417.0A CN112448777A (en) | 2019-09-05 | 2019-09-05 | Multifunctional wireless signal detection method |
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| CN201910834417.0A CN112448777A (en) | 2019-09-05 | 2019-09-05 | Multifunctional wireless signal detection method |
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| US20040263378A1 (en) * | 2001-10-16 | 2004-12-30 | Abraham Jossef | Method and apparatus for signal detection and jamming |
| US20050033526A1 (en) * | 2003-08-08 | 2005-02-10 | Cameron Mcneilage | Signal analysis instrument, and a module for a signal analysis instrument |
| CN201590813U (en) * | 2009-12-09 | 2010-09-22 | 长春大学 | Mobile phone signal sensing shielding device with monitored information display function |
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