CN103731229B - A kind of radio signal shielding method - Google Patents
A kind of radio signal shielding method Download PDFInfo
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- CN103731229B CN103731229B CN201310704092.7A CN201310704092A CN103731229B CN 103731229 B CN103731229 B CN 103731229B CN 201310704092 A CN201310704092 A CN 201310704092A CN 103731229 B CN103731229 B CN 103731229B
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Abstract
The embodiment of the invention discloses a kind of radio signal shielding method, including：S1, monitoring unit receive user instruction, and user instruction is modification instruction or query statement；S2, monitoring unit are judged user instruction；If query statement, then to user feedback shielding parameter；Instructed if modification, then judge it is MANUAL CONTROL mode or automatic control mode, if MANUAL CONTROL mode, then enter manual control flow, power control signal is sent to multiple spectrum mask units, if automatic control mode, then into automatic control flow chart, power control signal is sent to multiple spectrum mask units；S3, multiple spectrum mask units radiate the shielded signal of multiple frequency ranges according to power control signal.Using the present invention, can flexibly control shielded signal, monitor radio signal shielding device in real time, the accurate power grade for adjusting radio signal shielding device, can dynamic update, the following wireless signal being likely to occur of shielding, optimize signal shielding effect.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of radio signal shielding method.
Background technology
With the high speed development of wireless communication technology, the terminal such as mobile phone, intercom with its is convenient, fast, not by the time with
The many advantages such as place limitation are popular with the masses of users, and its number of users constantly increases, and has been increasingly becoming the daily life of people
One of indispensable instrument in living and work.While wireless communication technology brings convenient, also bring negative
Influence, such as practised fraud using Wireless Telecom Equipment, steal privacy of user, mobile phone noise jamming.Therefore, in many occasions,
It is desirable in a certain various wireless signals of region inner shield.For example, the wireless signal in shielding examination hall, to prevent by wireless
The possibility of electricity cheating, safeguard the fairness of examination；The wireless signal in momentous conference room is shielded, to prevent from leaking state secrets；
The wireless signal of the special occasions such as court, prison is shielded, to prevent generation of various fortuitous events etc..
Existing radio signal shielding device uses traditional radio signal shielding method, that is, is directed to the frequency range that need to be disturbed,
High-power interference signal is radiated, is alleviated to a certain extent really such as the problem of examination hall cheating etc, but following lack also be present
Fall into：Chronic exposure high-power signal, electromagenetic wave radiation sanitary standard is unsatisfactory for, influences health；Radiated signal power can not
Adjust on demand, shield ranges are excessive, influence the normal operation of radio communication outside blind zone；The only shielding spoke of product fixed setting
Power is penetrated, the change of environment can not be adapted to；The only shielding covering frequency range of product fixed setting, can not meet that the communication technology upgrades
Demand, the following radio signal frequency being likely to occur can not be shielded；Do not possess the function of long-distance on-line remote monitoring, Wu Faji
Middle management so that overall signal shielding effect is not very good.
The content of the invention
, can be according to electromagnetic wave ring the technical problem to be solved by the invention is to provide a kind of radio signal shielding method
Environment information, adjustment radiant power, to meet the requirement of electromagenetic wave radiation standard, solve the problems, such as to Health Impact and shielding
Scope problems of too, while environmental change can be also adapted to automatically, radiation shield signal is needed according to environment；Can monitor in real time,
Remote switch radio signal shielding device, the accurate power grade for adjusting radio signal shielding device, to solve equipment control and entirety
Signal shielding effect problem；Can dynamic update, the following wireless signal being likely to occur of shielding, optimize signal shielding effect,
To solve the problems, such as that traditional screen method can not flexible expansion；Offer automatically controls and controls both of which manually, greatly improves
The control flexibility of wireless shielding signal.
To solve above technical problem, the embodiment of the present invention provides a kind of radio signal shielding method, including：
S1, monitoring unit receive user instruction, and the user instruction is modification instruction or query statement；
S2, the monitoring unit are judged the user instruction；
When the user instruction is query statement, according to the query statement to user feedback shielding parameter；
When the user instruction instructs for modification, instructed according to the modification, judging the pattern of the user instruction is
MANUAL CONTROL mode or automatic control mode；
If MANUAL CONTROL mode, then into manual control flow, according to the screen in the modification instruction modification memory
Parameter is covered, and power control signal is sent to multiple spectrum mask units according to amended shielding parameter；
If automatic control mode, then into automatic control flow chart, detected according to the modification instruction and advance signal single
The ambient signal parameter of member detection, power control signal is sent from the multiple spectrum mask units of trend；
S3, the multiple spectrum mask unit radiate the shielded signal of multiple frequency ranges according to the power control signal；
Wherein, the multiple spectrum mask unit includes：
Fixed frequency range screen unit, it is more than or equal to 50MHz for shielding, and is less than or equal to 2500MHz frequency ranges；With,
Extended frequency band screen unit, for shielding the frequency range beyond 50MHz~2500MHz frequency ranges.
Further, also include before the step S1：
Local administration center module sends a connection request to the monitoring unit, establishes and connects with the monitoring unit
Connect；
The user instruction that the local administration center module sends local user sends the monitoring unit to.
Further, also include before the step S1：
Remote management center module sends a connection request to the monitoring unit, establishes and connects with the monitoring unit
Connect；
The user instruction that the remote management center module sends long-distance user sends the monitoring unit to.
Further, the step S2 is specifically included：
S201, monitoring unit initialization, the basic parameter in memory is set, the basic parameter, which includes shielding, joins
Number, username and password；
S202, circular wait user instruction；
S203, the user instruction is received, parse the URL character strings of the user instruction；
S204, according to the URL character strings, it is query statement or modification instruction to judge the user instruction, if described
User instruction is query statement, then performs step S205, if the user instruction is modification instruction, performs step S206；
Shielding parameter in S205, the reading memory, and the shielding parameter in the memory sends and replied
Instruct to user, and return to step S202；
S206, username and password in the URL character strings is obtained, and read the user name in the memory and close
Code；
Username and password in URL character strings described in S207, certification, if with the user name in the memory and close
Code-phase matches, if matching, performs step S208, if mismatching, abandons the user instruction, and return to step S202；
S208, according to the URL character strings, judge that the user job pattern is MANUAL CONTROL mode or automatically controlled
Pattern, if the user job pattern is MANUAL CONTROL mode, step S209 is performed, if the user job pattern is automatic
Control model, then perform step S210；
S209, into manual control flow；
S210, into automatic control flow chart.
Further, the step S209 is specifically included：
S2091：Continue to parse the URL character strings, obtain the shielding parameter in the URL character strings；
S2092：Shielding parameter in the memory is modified, the shielding ginseng being revised as in the URL character strings
Number, and according to the control word of amended shielding parameter, it is corresponding with the control word into the multiple spectrum mask unit
Shielding subelement send power control signal；
S2093：The shielding parameter in the memory is read, and the shielding parameter in the memory sends and replied
Instruct to user, and return to step S202.
Further, the step S210 is specifically included：
S2101：The ambient signal parameter of advance signal detection unit detection is read, the ambient signal parameter includes power
Parameter K and frequency parameter F；
S2102：Continue to parse the URL character strings, obtain the customer requirement shielding parameter in the URL character strings, institute
Stating shielding parameter includes screening range D and ambient parameter E；
S2103：The power parameter K, the frequency parameter F, the ambient parameter E and the screening range D are according to work(
Rate controls computational methods, generation power contorl parameters C；
S2104：Shielding parameter in the memory is modified, is revised as the screen corresponding to power contorl parameters C
Cover parameter, and according to the control word of amended shielding parameter, into the multiple spectrum mask unit with the control word phase
Corresponding shielding subelement sends power control signal；
S2105：The shielding parameter in the memory is read, and the shielding parameter in the memory sends and replied
Instruct to user；
S2106：Judge whether replying instruction sends success, if it is, return to step S202, otherwise continues executing with step
S2107；
S2107：Judge whether the changing value of the power parameter K exceedes power parameter thresholding A, if it is, returning to step
Rapid S2102, otherwise return to step S2106.
Radio signal shielding method provided in an embodiment of the present invention, has the advantages that：Can be according to environment electromagnetics
Ripple signal power, carry out shielded signal and automatically control, to meet the requirement of electromagenetic wave radiation standard, solve to ask Health Impact
Topic and shield ranges problems of too；MANUAL CONTROL mode is provided, can be by user according to environmental requirement, sets itself shielded signal
Power, meet the requirement of control flexibility；Remote management center module is connected by internet with the monitoring unit in shielding device,
Monitoring and remote switch in real time can be carried out to shielding device；The shielding subelement of multiple different capacity grades can realize the screen of shielding device
It is accurately adjustable to cover power；Extended frequency band screen unit is extended to existing shielding frequency range, realizes system dynamic update, maskable
The wireless signal that future is likely to occur；Shield device series connection networking, can centralized Control, optimize overall signal shield effectiveness.
Brief description of the drawings
Fig. 1 applies to one embodiment structural representation of the radio signal shielding system of the present invention.
Fig. 2 is the structural representation of multiple spectrum mask units in embodiment illustrated in fig. 1.
Fig. 3 is the structural representation of the shielding subelement in embodiment illustrated in fig. 2.
Fig. 4 is the schematic flow sheet of one embodiment of radio signal shielding method provided by the invention.
Fig. 5 is the schematic flow sheet of the monitoring unit work in embodiment illustrated in fig. 4.
Fig. 6 is the schematic flow sheet of the MANUAL CONTROL mode in embodiment illustrated in fig. 5.
Fig. 7 is the schematic flow sheet of the automatic control mode in embodiment illustrated in fig. 5.
Fig. 8 is the schematic flow sheet of the generation power contorl parameters C in embodiment illustrated in fig. 7.
Fig. 9 applies to another example structure schematic diagram of the radio signal shielding system of the present invention.
Figure 10 applies to another example structure schematic diagram of the radio signal shielding system of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
The present invention provides a kind of radio signal shielding method, can apply in radio signal shielding system, can be flexible
Shielded signal is controlled, in real time monitoring, remote switch radio signal shielding device, accurate power for adjusting radio signal shielding device etc.
Level, can dynamic update, the following wireless signal being likely to occur of shielding, optimize signal shielding effect.
Referring to Fig. 1, the structural representation of one embodiment of the radio signal shielding system of the present invention is applied to.
The present embodiment provides a kind of radio signal shielding system, including shielding device 107, and sends and use to shielding device 107
The management module 100 of family instruction.Wherein, management module 100 includes remote management center module 101 and local administration center module
102.Shielding device 107 includes monitoring unit 103, multiple spectrum mask units 104 and advance signal detection unit 105.
Remote management center module 101 is used to sending modification instruction that long-distance user sends and query statement to monitoring single
Member 103, and receive the shielding parameter that monitoring unit 103 feeds back；
Local administration center module 102 is used to sending modification instruction that local user sends and query statement to monitoring single
Member 103, and receive the shielding parameter that monitoring unit 103 feeds back；
Advance signal detection unit 105 is used for automatic detection environmental electromagnetic wave, and Conservation environment signal parameter；
Monitoring unit 103 is used to receive modification instruction and the query statement of user, according to modification instruction modification shielding parameter,
Or instructed according to modification and read environment signal parameter and shielding parameter is changed according to ambient signal parameter, and output power is believed
Number, according to query statement to user feedback shielding parameter；
Multiple spectrum mask units 104 are used for receiving power control signal, and are believed according to power control signal radiation shield
Number.
Wherein, the output end of remote management center module 101 connects with the input of monitoring unit 103, in local management
The output end of core module 102 connects with the input of monitoring unit 103, the output end of advance signal detection unit 105 and monitoring
The input connection of unit 103, the output end of monitoring unit 103 connect with the input of multiple spectrum mask units 104.
Further, shielding device also includes power supply 106.
Further, as shown in Fig. 2 multiple spectrum mask units 104 include：
Fixed frequency range screen unit 201, it is more than or equal to 50MHz for shielding, and is less than or equal to 2500MHz frequency ranges；
With,
Extended frequency band screen unit 202, for shielding the frequency range beyond 50MHz~2500MHz frequency ranges.
Further, fixed frequency range screen unit 201 includes at least one shielding subelement 203, and extended frequency band shielding is single
Member 202 includes at least one shielding subelement 203.
As shown in figure 3, shielding subelement 203 specifically includes：
VCO controller 301, for transmission frequency control signal；
Voltage controlled oscillator 302, for receives frequency control signal, and according to frequency control signal frequency modulation, output frequency modulation letter
Number；
Power attenuator 303, for receiving power control signal and FM signal, and adjusted and adjusted according to power control signal
The watt level of frequency signal, power output signal；
Power amplifier 304, amplify for receiving power signal, and by power signal, export high-power signal；
Radio-frequency filter 305, it is filtered for receiving high-power signal, and to high-power signal, exports shielded signal；
With,
Antenna 306, it is radiate for receiving shielded signal, and by shielded signal.
VCO controller 301 controls the working frequency of voltage controlled oscillator 302, voltage controlled oscillator 302 is provided segmentation
Shielded signal source.Monitoring unit 103 controls the pad value of power attenuator 303, exports shielding device 107 different grades of
Power.By setting different frequency levels to multichannel voltage controlled oscillator 302, different power is set to power attenuator 303
Grade, the shielded signal that antenna 306 gives off is mutually linked on frequency domain, form comprehensive, full frequency band, power is flexibly adjustable
Shielding covering.
It is the schematic flow sheet of one embodiment of radio signal shielding method provided by the invention referring to Fig. 4.
A kind of radio signal shielding method of present invention offer, the radio signal shielding system suitable for above-described embodiment,
This method includes：
S1, monitoring unit 103 receive user instruction, and user instruction is modification instruction or query statement；
S2, monitoring unit 103 are judged user instruction；
When user instruction is query statement, according to query statement to user feedback shielding parameter；
When user instruction instructs for modification, instructed according to modification, the pattern for judging user instruction is MANUAL CONTROL mode
Or automatic control mode；
If MANUAL CONTROL mode, then into manual control flow, the shielding in modification instruction modification memory is joined
Number, and power control signal is sent to multiple spectrum mask units 104 according to amended shielding parameter；
If automatic control mode, then into automatic control flow chart, examined according to modification instruction and advance signal detection unit
105 ambient signal parameter is surveyed, power control signal is sent from the multiple spectrum mask units 104 of trend；
S3, multiple spectrum mask units 104 radiate the shielded signal of multiple frequency ranges according to power control signal.
Further, also include before step S1：
Local administration center module 102 sends a connection request to monitoring unit, establishes and connects with monitoring unit 103；
The user instruction that local administration center module 102 sends local user sends monitoring unit 103 to.
Further, also include before step S1：
Remote management center module 101 sends a connection request to monitoring unit 103, establishes and connects with monitoring unit 103
Connect；
The user instruction that remote management center module 101 sends long-distance user sends monitoring unit 103 to.
Further, as shown in figure 5, step S2 is specifically included：
S201, monitoring unit 103 initialize, and set the basic parameter in memory, and basic parameter includes shielding parameter, used
Name in an account book and password；
S202, circular wait user instruction；
S203, user instruction is received, parse the URL character strings of user instruction；
S204, according to URL character strings, it is query statement or modification instruction to judge user instruction, if user instruction is to look into
Instruction is ask, then performs step S205, if user instruction is modification instruction, performs step S206；
S205, read shielding parameter in shielding device, and shielding parameter in memory send replying instruction to
Family, and return to step S202；
Username and password in S206, acquisition URL character strings, and read the username and password in memory；
Username and password in S207, certification URL character strings, if with the username and password phase in memory
Match somebody with somebody, if matching, perform step S208, if mismatching, abandon user instruction, and return to step S202；
S208, according to URL character strings, judge that user job pattern is MANUAL CONTROL mode or automatic control mode, if
User job pattern is MANUAL CONTROL mode, then performs step S209, if user job pattern is automatic control mode, perform
Step S210；
S209, into manual control flow；
S210, into automatic control flow chart.
Further, as shown in fig. 6, step S209 is specifically included：
S2091：Continue to parse URL character strings, obtain the shielding parameter in URL character strings；
S2092：Shielding parameter in memory is modified, the shielding parameter being revised as in URL character strings, and according to
The control word of amended shielding parameter, the shielding subelement 203 corresponding with control word into multiple spectrum mask units 104
Send power control signal；
S2093：Read the shielding parameter in memory, and shielding parameter in memory send replying instruction to
Family, and return to step S202.
When changing shielding parameter, monitoring unit 103 is by the control word in shielding parameter with each shielding subelement 203
Control word compares, shielding subelement 203 of the selection with identical control word, and sends a power control signal to the shielding
Subelement 203.Power control signal is power attenuation value, can control shielding subelement 203 export power, so as to give off with
The corresponding shielded signal of shielding parameter.
Further, as shown in fig. 7, step S210 is specifically included：
S2101：The ambient signal parameter of the detection of advance signal detection unit 105 is read, ambient signal parameter includes power
Parameter K and frequency parameter F；
S2102：Continue to parse URL character strings, obtain the customer requirement shielding parameter in URL character strings, including mask pitch
From D and ambient parameter E；If needing to parse without URL character strings, directly invoke preserved screening range D in memory and
Ambient parameter E；
S2103：Power parameter K, frequency parameter F, ambient parameter E and screening range D are raw according to Power Control computational methods
Success rate control parameter C；
S2104：Shielding parameter in memory is modified, is revised as the shielding ginseng corresponding to power contorl parameters C
Number, and according to the control word of amended shielding parameter, the shielding corresponding with control word into multiple spectrum mask units 104
Subelement 203 sends power control signal；
S2105：Read the shielding parameter in memory, and shielding parameter in memory send replying instruction to
Family；
S2106：Judge whether replying instruction sends success, if it is, return to step S202；Otherwise step is continued executing with
S2107；
S2107：Signal detection mode is switched to, judges whether ambient signal power parameter K changing value exceedes power and join
Number thresholding A, if so, then return to step S2102；If it is not, signal shielding pattern is then switched back into, and return to step S2106.
Power parameter thresholding A is determined according to the empirical value of different mode.Generally, power parameter thresholding A
Value be 5dB.But certain optimize and revise can also be carried out according to environmental requirement.
It should be noted that user can voluntarily select mode of operation according to their needs or environmental requirement.Wherein,
Automatic operation mode carries out shielded signal and automatically controlled, to meet electromagenetic wave radiation standard according to environmental electromagnetic wave signal power
It is required that solve the problems, such as to Health Impact and shield ranges problems of too；MANUAL CONTROL mode, can be by user according to environment
It is required that sets itself shielded signal power, meets the requirement of control flexibility.
Specifically, automatic control mode includes signal detection mode and signal shielding pattern, when shielding device 107 is operated in letter
During number detection pattern, only advance signal detection unit 105 receives ambient signal, multiple non-radiating screens of spectrum mask unit 104
Cover signal；When shielding device 107 is operated in signal shielding pattern, only multiple radiation shield signals of spectrum mask unit 104 are preceding
Detecting signal unit 105 is put to be stopped.
Further, as shown in figure 8, step S2103 is specifically included：
S21031：According to ambient parameter E, selection signal propagation model i；
S21032：Frequency parameter F and distance parameter D is substituted into signal propagation model i, calculates path loss parameter L；
S21033:According to frequency parameter F, selection signal propagation model i minimum signal to noise ratio requires S and signal to noise ratio surplus ginseng
Number M；
S21034：Output power parameter C is then power parameter K, path loss L, minimum signal to noise ratio require S and noise
Than surplus M sums.
Ambient parameter E can be room parameter, outdoor parameter or other specification, and signal propagation model i is corresponded to respectively
The model of kind environment.For example, when ambient parameter E is indoor environment parameter, signal propagation model i then passes for free space signal
Broadcast model.Free space signal propagation model is to launch public affairs based on the American scientist H.T.Friis Friis proposed in nineteen forty-six
What formula was derived, Friis Emission Formulas are as follows：
Wherein, PtFor transmitter power；PrFor receiving power, GtFor transmitter antenna gain；GrIncrease for receiver antenna
Benefit；Spacing distances of the R between transmitter and receiver, unit are rice；λ is wavelength, and unit is rice.
The calculation formula of free space signal propagation model is as follows：
L=-27.6+20logF+20logD
Wherein, L is shielded signal propagation path loss, unit dB.
F is carrier frequency, unit MHz.
D is screening range, and unit is rice.
In addition, user can also by sending modification instruction, for change the title of radio signal shielding device, description,
Mode of operation, IP address, mask subnet masks, gateway, username and password.User can also by sending query statement, with
For inquiring about the title of radio signal shielding device, description, IP address, mask subnet masks, gateway, renewal time last time, work
State, cpu temperature, CPU operating voltages and air themperature.
Among specific implementation, radio signal shielding system provided by the invention can include multiple shielding devices 107.Example
Such as, as shown in figure 9, radio signal shielding system includes remote management center module 101, local administration center module 102, shielding
Device A1, shielding device A2, shielding device A3 ... and shielding device An.Remote management center module 101 by internet respectively with shielding
Device A1, shielding device A2, shielding device A3 ... and shield device An and connect, local administration center module 102 by internet respectively with
Shielding device A1, shielding device A2, shielding device A3 ... connect with shielding device An, make remote management center module 101 and local management
Each shielding device of the Centralized Monitoring of center module 102, shield the shielded signal needed for device radiating user.
Referring to Figure 10, another example structure schematic diagram of the radio signal shielding system of the present invention is applied to.
The present embodiment provides a kind of radio signal shielding system, including multiple shielding devices 107, local administration center module
102 and remote management center module 101.Wherein, local administration center module 102 includes local control interface 702 and local number
According to storehouse 701, and local background program 703 is installed.Remote management center module 101 is including remote control interface 704 and remotely
Database 706, and remote back-office program 705 is installed.
The control flow of modification instruction and query statement is sent to local user below, and long-distance user sends modification and referred to
The control flow of order and query statement is described in detail.
First, the control flow of local user's transmission query statement is as follows：
Local user sends local search to local background program 703 by local control interface 702 and instructed；
Local background program 703 sends local search instruction to shielding device 107；
Shielding device 107 gives local background program 703 according to local search instruction feedback shielding parameter；
Shielding parameter is saved in local data base 701 by local background program 703, and is shown to local user interface 702.
2nd, it is as follows to send the control flow that modification instructs by local user：
Local user sends locally modified instruction by local control interface 702 to local background program 703；
Local background program 703 sends locally modified instruction to shielding device 107；
Device 107 is shielded according to modification instruction modification shielding parameter, and amended shielding parameter is fed back into local backstage
Program 703；
Amended shielding parameter is saved in local data base 701 by local background program 703, and is shown to local user
Interface 702.
3rd, the control flow of long-distance user's transmission query statement is as follows：
Long-distance user sends remote inquiry to remote back-office program 705 by remote control interface 704 and instructed；
Remote back-office program 705 sends remote inquiry instruction to shielding device 107；
Device 107 is shielded according to remote inquiry instruction feedback shielding parameter to remote back-office program 705；
Shielding parameter is saved in remote data base 706 by remote back-office program 705, and is shown to remote subscriber interface 704.
4th, it is as follows to send the control flow that modification instructs by long-distance user：
Long-distance user sends remotely modifying to remote back-office program 705 by remote control interface 704 and instructed；
Remote back-office program 705 sends remotely modifying instruction to shielding device 107；
Device 107 is shielded according to modification instruction modification shielding parameter, and amended shielding parameter is fed back into remote back-office
Program 705；
Amended shielding parameter is saved in remote data base 706 by remote back-office program 705, and is shown to long-distance user
Interface 704.
Radio signal shielding method provided in an embodiment of the present invention, can be according to electromagnetic wave environment information, adjustment spoke
Power is penetrated, to meet the requirement of electromagenetic wave radiation standard, is solved the problems, such as to Health Impact and shield ranges problems of too, simultaneously
Also environmental change can be adapted to automatically, and radiation shield signal is needed according to environment；It can monitor in real time, remote switch wireless signal screen
Device is covered, the accurate power grade for adjusting radio signal shielding device, to solve equipment control and overall signal shielding effect problem；
Can dynamic update, the following wireless signal being likely to occur of shielding, optimize signal shielding effect, with solve traditional screen method without
The problem of method flexible expansion；Offer automatically controls and controls both of which manually, greatly improves the control spirit of wireless shielding signal
Activity.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
- A kind of 1. radio signal shielding method, it is characterised in that including：S1, monitoring unit receive user instruction, and the user instruction is modification instruction or query statement；S2, the monitoring unit are judged the user instruction；When the user instruction is query statement, according to the query statement to user feedback shielding parameter；When the user instruction instructs for modification, instructed according to the modification, the pattern for judging the user instruction is manual Control model or automatic control mode；If MANUAL CONTROL mode, then into manual control flow, the shielding in the modification instruction modification memory is joined Number, and power control signal is sent to multiple spectrum mask units according to amended shielding parameter；If automatic control mode, then into automatic control flow chart, examined according to the modification instruction and advance signal detection unit The ambient signal parameter of survey, power control signal is sent from the multiple spectrum mask units of trend；S3, the multiple spectrum mask unit radiate the shielded signal of multiple frequency ranges according to the power control signal；Wherein, the multiple spectrum mask unit includes：Fixed frequency range screen unit, it is more than or equal to 50MHz for shielding, and is less than or equal to 2500MHz frequency ranges；With,Extended frequency band screen unit, for shielding the frequency range beyond 50MHz~2500MHz frequency ranges.
- 2. radio signal shielding method according to claim 1, it is characterised in that the step S2 is specifically included：S201, the monitoring unit initialization, set memory in basic parameter, the basic parameter include shielding parameter, Username and password；S202, circular wait user instruction；S203, the user instruction is received, parse the URL character strings of the user instruction；S204, according to the URL character strings, it is query statement or modification instruction to judge the user instruction, if the user Instruction is query statement, then performs step S205, if the user instruction is modification instruction, performs step S206；Shielding parameter in S205, the reading memory, and the shielding parameter in the memory sends replying instruction To user, and return to step S202；Username and password in S206, the acquisition URL character strings, and read the username and password in the memory；Username and password in URL character strings described in S207, certification, if with the username and password phase in the memory Matching, if matching, step S208 is performed, if mismatching, abandons the user instruction, and return to step S202；S208, according to the URL character strings, the pattern for judging the user instruction is MANUAL CONTROL mode or automatically controls mould Formula, if MANUAL CONTROL mode, then step S209 is performed, if automatic control mode, then perform step S210；S209, into manual control flow；S210, into automatic control flow chart.
- 3. radio signal shielding method according to claim 2, it is characterised in that the step S209 is specifically included：S2091, continue to parse the URL character strings, obtain the shielding parameter in the URL character strings；S2092, the shielding parameter in the memory is modified, the shielding parameter being revised as in the URL character strings, and According to the control word of amended shielding parameter, the shielding corresponding with the control word into the multiple spectrum mask unit Subelement sends power control signal；Shielding parameter in S2093, the reading memory, and the shielding parameter in the memory sends replying instruction To user, and return to step S202.
- 4. radio signal shielding method according to claim 2, it is characterised in that the step S210 is specifically included：S2101, the ambient signal parameter for reading the detection of advance signal detection unit, the ambient signal parameter include power parameter K and frequency parameter F；S2102, continue to parse the URL character strings, obtain the shielding parameter in the URL character strings, the shielding parameter bag Include screening range D and ambient parameter E；S2103, the power parameter K, the frequency parameter F, the ambient parameter E and the screening range D are according to power control Computational methods processed, generation power contorl parameters C；S2104, the shielding parameter in the memory is modified, be revised as the shielding ginseng corresponding to power contorl parameters C Number, and according to the control word of amended shielding parameter, it is corresponding with the control word into the multiple spectrum mask unit Shielding subelement send power control signal；Shielding parameter in S2105, the reading memory, and the shielding parameter in the memory sends replying instruction To user；S2106, judge whether replying instruction sends success, if it is, return to step S202, otherwise continues executing with step S2107；S2107, judge whether the changing value of the power parameter K exceedes power parameter thresholding A, if so, then return to step S2102, if it is not, then return to step S2106.
- 5. radio signal shielding method according to claim 4, it is characterised in that the power control in the step S2103 Computational methods processed specifically include：S21031：According to the ambient parameter E, selection signal propagation model i；S21032：The frequency parameter F and distance parameter D is substituted into the signal propagation model i, calculates path loss Parameter L；S21033:According to the frequency parameter F, more than minimum the signal to noise ratio requirement S and signal to noise ratio for selecting the signal propagation model i Measure parameter M；S21034：It is then the power parameter K, the path loss L, the minimum noise to export the power contorl parameters C Than requiring S and the signal to noise ratio surplus M sums.
- 6. radio signal shielding method according to claim 1, it is characterised in that also include before the step S1：Local administration center module sends a connection request to the monitoring unit, establishes and connects with the monitoring unit；The user instruction that the local administration center module sends local user sends the monitoring unit to.
- 7. radio signal shielding method according to claim 1, it is characterised in that also include before the step S1：Remote management center module sends a connection request to the monitoring unit, establishes and connects with the monitoring unit；The user instruction that the remote management center module sends long-distance user sends the monitoring unit to.
- 8. radio signal shielding method according to claim 1, it is characterised in that the fixed frequency range screen unit includes At least one shielding subelement, the extended frequency band screen unit include at least one shielding subelement；The shielding subelement specifically includes：VCO controller, for output frequency control signal；Voltage controlled oscillator, for receiving the frequency control signal, and according to the frequency control signal frequency modulation, output frequency modulation letter Number；Power attenuator, for receiving the power control signal and the FM signal, and according to the power control signal Adjust the watt level of the FM signal, power output signal；Power amplifier, amplify for receiving the power signal, and by the power signal, export high-power signal；Radio-frequency filter, it is filtered for receiving the high-power signal, and to the high-power signal, output shielding letter Number；With,Antenna, it is radiate for receiving the shielded signal, and by the shielded signal.
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| CN104539386A (en) * | 2014-12-26 | 2015-04-22 | 成都杰联祺业电子有限责任公司 | Interconnected type full-band signal shielding device, system and method |
| BR102015017928A2 (en) * | 2015-07-28 | 2017-01-31 | Cesar Da Silva Jefferson | cell phone signal blocking system when used on motor vehicles of any kind |
| CN108024251A (en) * | 2016-10-28 | 2018-05-11 | 广州启辰电子科技有限公司 | A kind of wireless cheating signal management-control method |
| CN107222286B (en) * | 2017-08-09 | 2018-03-13 | 罗普特（厦门）科技集团有限公司 | A kind of method of network directional shielding |
| CN108064076B (en) * | 2017-12-07 | 2021-04-27 | Oppo广东移动通信有限公司 | Method and device for controlling transmission power, storage medium and mobile terminal |
| CN110445575A (en) * | 2019-02-25 | 2019-11-12 | 上海互荣通讯科技发展有限公司 | Active detection type is wireless anti-cheating system |
| CN110430007A (en) * | 2019-07-18 | 2019-11-08 | 中国电子科技集团公司第二十九研究所 | A kind of dexterity formula WiFi signal monitoring and screening arrangement and monitoring method and screen method |
| CN111682922B (en) * | 2020-04-30 | 2024-01-05 | 山东思正信息科技有限公司 | Portable signal shielding fast networking equipment |
| CN112351132A (en) * | 2020-11-09 | 2021-02-09 | 南京信息职业技术学院 | Mobile phone shielding method |
| CN113324328B (en) * | 2021-05-11 | 2022-12-13 | Tcl空调器(中山)有限公司 | Method and device for determining shielding frequency of refrigeration equipment and storage medium |
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| CN100514919C (en) * | 2005-12-12 | 2009-07-15 | 华为技术有限公司 | Multi-media service system performance testing method |
| CN101115102B (en) * | 2007-06-29 | 2010-05-19 | 南京柏康机电科技有限公司 | Intelligent management system of mobile phone signal shielding network |
| CN101540089A (en) * | 2008-03-19 | 2009-09-23 | 王雷 | Intelligent management system for detecting and shielding mobile phone signals |
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| CN201797512U (en) * | 2010-08-25 | 2011-04-13 | 福建三元达通讯股份有限公司 | Wireless signal shielding device |
| CN202406113U (en) * | 2011-12-01 | 2012-08-29 | 四川蓝弋科技有限公司 | Wireless signal shield |
| CN102752069A (en) * | 2012-07-11 | 2012-10-24 | 北京小米科技有限责任公司 | Method and device for shielding wireless electromagnetic wave and mobile terminal |
| CN102917062B (en) * | 2012-10-22 | 2016-02-03 | 中国移动通信集团湖南有限公司湘潭分公司 | A kind of method and system based on control module remote controlling mobile phone shielding device |
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