CN110097750A - A kind of audio receiving end switch controller, equipment and system - Google Patents
A kind of audio receiving end switch controller, equipment and system Download PDFInfo
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- CN110097750A CN110097750A CN201910399666.1A CN201910399666A CN110097750A CN 110097750 A CN110097750 A CN 110097750A CN 201910399666 A CN201910399666 A CN 201910399666A CN 110097750 A CN110097750 A CN 110097750A
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- receiving end
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/007—Telephonic communication systems specially adapted for combination with other electrical systems with remote control systems
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/60—Security, fault tolerance
- G08C2201/61—Password, biometric
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of audio receiving end switch controller, equipment and system, signal controls high reliablity.Audio receiving end switch controller, comprising: double audio decoder, receiving end micro-control unit MCU and at least one controlled device control switch；The receiving end MCU is separately connected with the double audio decoder and at least one controlled device control switch；The double audio decoder outer signal receiver is decoded it, obtains decoded working instruction signal and be output to the receiving end MCU when receiving the dual tone multi-frequency dtmf encoded signal of signal receiver transmission；When receiving the working instruction signal that the double audio decoder is sent, the receiving end MCU matches the working instruction signal at least one preset code signal corresponding at least one controlled device control switch, when determining the code signal to match, then opening control signal is sent to corresponding controlled device control switch.
Description
Technical field
The present invention relates to a kind of audio receiving end switch controller, equipment and systems.
Background technique
Emergency advance warning communication apparatus, meteorological remote rain amount may be implemented in wireless signal remote transmission based on radio station
Equipment, oil field, water pumping station, mining site mechanical equipment remote control, scenic spot warning broadcast, Signalized control, forest fire protection is pre-
Alert system etc..Remote controlled equipment start-stop, publication mountain torrents, air defense, fire prevention and emergency advance warning information, while audio can also be passed through
Signal controls fixed bit warning lamp, warning system.But existing radio station's ON-OFF control circuit generally uses double-direction control
Mode, transmitting terminal or receiving end based on radio station switch switching mode, realize transmitting terminal control or receiving end control, this
The switch controller of integrated form can only generally realize the transmitting-receiving of single audio signal by controlling the modulation /demodulation of radio station.It is real
In the production and living of border, the encoded signal using radio station's transmission encryption may require that sometimes, if directly using single audio signal
Broadcast, it is possible to will cause password leakage, and when needing to transmit multiple wireless signal, single audio signal transmission be easy by
Spurious signal interference, causes controlled device to malfunction.
Summary of the invention
In view of technological deficiency existing in the prior art and technology drawback, the embodiment of the present invention offer overcome the above problem or
Person at least is partially solved a kind of audio receiving end switch controller, equipment and the system of the above problem.
The embodiment of the invention provides a kind of audio receiving end switch controllers, comprising: double audio decoder, receiving end are micro-
Control unit MCU and at least one controlled device control switch；The receiving end MCU and the double audio decoder and at least one
A controlled device control switch is separately connected；
The double audio decoder outer signal receiver, when the dual tone multi-frequency dtmf for receiving signal receiver transmission is compiled
When code signal, it is decoded, obtain decoded working instruction signal and is output to the receiving end MCU；
When receiving the working instruction signal that the double audio decoder is sent, the receiving end MCU is by the work
Command signal at least one preset code signal corresponding at least one controlled device control switch is matched, and is determined
When the code signal to match, then opening control signal is sent to corresponding controlled device control switch.
In one embodiment, it can be, the audio receiving end switch controller, further includes: signal latch, institute
It states signal latch to be connected between the double audio decoder and the receiving end MCU, be used for the double audio decoder
The working instruction signal of transmission is sent to the receiving end MCU after amplifying.
In one embodiment, it can be, the audio receiving end switch controller, further includes: at least one switch
Control circuit, wherein an ON-OFF control circuit is separately connected with the receiving end MCU and a controlled device control switch,
When receiving the opening control signal that the receiving end MCU is sent, the ON-OFF control circuit conducting controls the controlled of connection
Equipment control switch is opened.
In one embodiment, it can be, the audio receiving end switch controller, further includes: master control detector；Institute
Master control detector is stated to connect with the receiving end MCU and the signal receiver；
When the master control detector receives the audio signal that the signal receiver is sent, the receiving end is controlled
MCU starts work.
In one embodiment, it can be, the audio receiving end switch controller, further includes: power amplifying device control
Switch, the power amplifying device control switch are connect with the master control detector；
When the master control detector receives the audio signal that the signal receiver is sent, Xiang Suoshu power amplifying device control
System switch sends opening control signal.
In one embodiment, it can be, the power amplifying device control switch is connect with the receiving end MCU；
When the working instruction signal for receiving the double audio decoder and sending, and determine the code signal to match
When, the receiving end MCU sends closing control signal to the power amplifying device control switch, and sends and open after the preset time that is delayed
Open control signal.
In one embodiment, it can be, the double audio decoder and the receiving end MCU are through the signal latch
Realize data/address bus connection；
The double audio decoder is tone decoder, and the receiving end MCU is single-chip microcontroller, and the signal latch is D
Type latch.
In one embodiment, it can be, the receiving end MCU is also connected with crystal oscillating circuit, reset circuit and voltage regulator circuit；
The double audio decoder is also connected with crystal oscillating circuit and for identification resonance circuit of dtmf code signal.
In technical solution of the embodiment of the present invention, signal receiver is received by double audio decoder and receiving end MCU
DTFM encoded signal handled, password match is carried out by receiving end MCU and is realized to the on-off of controlled device control switch
Control.Audio receiving end provided in an embodiment of the present invention switch controller is, it can be achieved that control the decoding of double-audio signal, receiving end
After MCU obtains the control instruction that audio emission end is sent and carries out password match, just pass through the on-off of controlled device control switch
It realizes the job control to controlled device, compared with prior art, can be avoided because signal receiver receives spurious signal or does
Signal is disturbed, the control instruction of mistake is issued to controlled device control switch, controlled device is caused to malfunction.In the embodiment of the present invention
The audio receiving end switch controller of offer, structure is simple, easily controllable, low in energy consumption, saves electric energy.
Based on identical inventive concept, the embodiment of the present invention also provides a kind of receiving device, comprising: signal receiver,
At least one controlled device, power amplifying device, broadcasting equipment and above-mentioned audio receiving end switch controller；
Audio receiving end switch controller is set with the signal receiver, at least one controlled device and power amplifier respectively
Standby connection；
The power amplifying device is connect with the signal receiver and broadcasting equipment respectively.
Similarly, receiving device provided in an embodiment of the present invention is, it can be achieved that control the decoding of double-audio signal, receiving end
After MCU obtains the control instruction that audio emission end is sent and carries out password match, just pass through the on-off of controlled device control switch
It realizes the job control to controlled device, compared with prior art, can be avoided because signal receiver receives spurious signal or does
Signal is disturbed, the control instruction of mistake is issued to controlled device control switch, controlled device is caused to malfunction.
Based on identical inventive concept, the embodiment of the present invention also provides a kind of data radio station system, comprising: transmitting end equipment
With above-mentioned receiving device.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of audio emission of embodiment of the present invention end switch controller；
Fig. 2 is the second structural representation of audio emission of embodiment of the present invention end switch controller；
Fig. 3 is a specific example structural schematic diagram of audio emission of embodiment of the present invention end switch controller；
Fig. 4 is one of the structural schematic diagram of audio of embodiment of the present invention receiving end switch controller；
Fig. 5 is the second structural representation of audio emission of embodiment of the present invention end switch controller；
Fig. 6 is a specific example structural schematic diagram of audio of embodiment of the present invention receiving end switch controller；
Fig. 7 is the structural schematic diagram of transmitting end equipment of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of receiving device of the embodiment of the present invention；
Fig. 9 is the structural schematic diagram of transmitting end equipment of the embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
To make the object, technical solutions and advantages of the present invention clearer, separately below to provided in an embodiment of the present invention
A kind of audio emission end switch controller, audio receiving end switch controller, equipment and system various specific embodiments into
Row detailed description.
Embodiment one
The present invention provides a kind of audio emission end switch controllers, shown referring to Fig.1, comprising: at least one instruction letter
Number trigger 101, transmitting terminal micro-control unit MCU102 and double-audio signal generator 103；
Described instruction signal trigger 101 is connect with the transmitting terminal MCU102, to send opening control signal described in
Transmitting terminal MCU102；
The transmitting terminal MCU102 is connect with the double-audio signal generator 103, and outer signal transmitter, is being received
To described instruction signal trigger 101 send opening control signal when, Xiang Suoshu double-audio signal generator 103 send generate
Audio coding controls signal, and sends to signal transmitter and open firing order；
The external signal transmitter of double-audio signal generator 103 is receiving the transmitting terminal MCU102 hair
When the generation audio coding control signal sent, generates dual tone multi-frequency dtmf encoded signal and be sent to the signal transmitter.
In technical solution of the embodiment of the present invention, transmitting terminal MCU102, double-audio signal generator 103 and command signal touching
It sends out device 101 to control by signal, realizes that generate DTFM encoded signal is sent to signal and connects after signal transmitter is modulated
Receipts machine realizes the control to controlled device.Audio emission end switch controller provided in an embodiment of the present invention is, it can be achieved that control is double
The generation and transmission of audio signal can not only improve the transmission security of audio signal, and signal compared with prior art
Strong antijamming capability can be avoided signal receiver and receive spurious signal or interference signal, controlled device is caused to malfunction.This hair
The audio emission end switch controller provided in bright embodiment, structure is simple, easily controllable, low in energy consumption, saves electric energy.
In one embodiment, described instruction signal trigger 101 also sends closing control signal to the transmitting terminal
MCU102；
The transmitting terminal MCU102 receive described instruction signal trigger 101 transmission closing control signal when, to
The double-audio signal generator 103, which is sent, closes audio coding control signal, and sends to signal transmitter and close transmitting
Instruction；The double-audio signal generator 103 is in the closing audio coding control letter for receiving the transmitting terminal MCU102 transmission
Number when, stop generate dual tone multi-frequency dtmf encoded signal.
In one embodiment, referring to shown in Fig. 2, the audio emission end switch controller, further includes: play instruction
Trigger 104 and audio player 105, the transmitting terminal MCU102 and the play instruction trigger 104 and audio player
105 are separately connected；
The play instruction trigger 104 is connect with the transmitting terminal MCU102, opens audio player instruction to send
Or audio player instruction is closed to the transmitting terminal MCU102；
The transmitting terminal MCU102 is connect with the audio player 105, is receiving the play instruction trigger 104
When the unlatching audio player instruction of transmission, Xiang Suoshu audio player 105, which is sent, opens source of sound broadcasting control signal, Yi Jixiang
Signal transmitter, which is sent, opens firing order；The external signal transmitter of audio player 105, is receiving the hair
When penetrating the unlatching source of sound broadcasting control signal that end MCU102 is sent, starts to the signal transmitter and send preset source of sound audio
Signal；
The transmitting terminal MCU102 is in the closing audio player instruction for receiving the transmission of play instruction trigger 104
When, Xiang Suoshu audio player 105, which is sent, closes source of sound broadcasting control signal, and closes transmitting to signal transmitter transmission and refer to
It enables；The audio player 105 stops when receiving the closing source of sound broadcasting control signal that the transmitting terminal MCU102 is sent
Preset source of sound audio signal is sent to the signal transmitter.
In one embodiment, referring to shown in Fig. 2, the audio emission end switch controller, further includes: signal transmitting
Machine control switch Q1, the signal transmitter control switch Q1 connect with the transmitting terminal MCU102 and the signal transmitter respectively
It connects, when receiving the unlatching firing order that the transmitting terminal MCU102 is sent, control signal transmitter is opened, and is being received
The closing firing order sent to the transmitting terminal MCU102, control signal transmitter are closed.
In one embodiment, referring to shown in Fig. 2, the audio emission end switch controller, further includes: audio filtering
Device Q2, the tone filter Q2 are separately connected with the transmitting terminal MCU102 and the signal transmitter.
In a specific embodiment, referring to shown in Fig. 3, transmitting terminal MCU102 is single chip computer89C51 or 89C52；It is described
Double-audio signal generator 103 is double audio coding chip HT9200, and the transmitting terminal MCU102 and the double-audio signal are raw
103 are grown up to be a useful person by data/address bus connection.
The transmitting terminal MCU102 is in the unlatching control letter for receiving the transmission of described instruction signal trigger 101, control
Working station indicator issues the first light signal；
The transmitting terminal MCU102 is when receiving the closing control signal of the transmission of described instruction signal trigger 101, control
It makes the working station indicator and issues the second light signal；
The transmitting terminal MCU102 is connect with the audio player 105, is receiving the play instruction trigger 104
When the unlatching audio player instruction of transmission, controls the working station indicator and issue third light signal；
The transmitting terminal MCU102 is in the closing audio player instruction for receiving the transmission of play instruction trigger 104
When, it controls the working station indicator and issues the 4th light signal.
Specifically, for example can be, the first light signal is the signal of light flash, the second light signal and the 4th light
Signal is the signal of lights, and third light signal is the signal that light is always on, when audio emission end switch controller controls
Working station indicator flashes when emitting dual tone multi-frequency dtmf encoded signal, when the control transmitting of audio emission end switch controller is pre-
If source of sound audio signal when working station indicator be always on, when audio emission end switch controller control close transmitting double-tone it is more
Frequency dtmf code signal closes working station indicator extinguishing when emitting preset source of sound audio signal.
In a specific embodiment, referring to shown in Fig. 3, the transmitting terminal MCU102 is single-chip microcontroller 89C52, single-chip microcontroller
10 feet and 11 feet of 89C52 pass through connector P6 and P7 respectively and are connected to command signal trigger 101 and play instruction trigger
104；The 18-25 foot of single-chip microcontroller 89C52 is connected to audio player 105 by connector P3, and audio player 105 is by patching
Part P5 is connected respectively to 9 feet of connector P1 and P2, then is connected to signal transmitter by connector P1 and P2；Single-chip microcontroller
5 feet of 89C52 and 7 feet connect connector P4, the serial communication interface as single-chip microcontroller；The 32-37 foot of single-chip microcontroller 89C52 passes through
Connector P11 is connected respectively to 1,6,7,8 and 9 feet of double audio coding chip HT9200；14 and 15 feet of single-chip microcontroller 89C52 connect
Connect crystal oscillating circuit；38 feet of single-chip microcontroller 89C52 connect power supply VCC, the 16 feet ground connection of single-chip microcontroller 89C52 through voltage regulator circuit；
4 feet of single-chip microcontroller 89C52 connect reset circuit；40,41 and 42 feet of single-chip microcontroller 89C52 pass through connector P8, P9 and P10 company respectively
Connect one group of working condition lamp；43 feet of single-chip microcontroller 89C52 are connect with signal transmitter control switch Q1.2,3 feet of HT9200 connect
Connect crystal oscillating circuit；4 feet of HT9200 are grounded；10,14 feet of HT9200 connect working power VCC；13 feet of HT9200 are connected to
Tone filter Q2, tone filter Q2 are connected respectively to 9 feet of connector P1 and P2, then are connected to by connector P1 and P2
Signal transmitter.The audio player 105 can be MP3 player, and the signal transmitter control switch Q1 is positive-negative-positive three
Pole pipe.
For example, described instruction signal trigger 101 and play instruction trigger 104 can be keying button, pass through keying
The P3.3 mouth or P3.4 mouthfuls of level of single-chip microcontroller 89C52 are dragged down, what short-press indicated to send is opening control signal or unlatching audio
Player instruction；What long-pressing indicated is closing control signal or closing audio play instruction；Transmitting terminal MCU102 detection instruction letter
The low level time span of transmission of number trigger 101 or play instruction trigger 104 obtains opening control signal, opens sound
The instruction of frequency player, closing control signal close audio play instruction.
When transmitting terminal MCU102 receives opening control signal, it is obtained by calculation and generates audio coding control signal
Parallel 5 binary codes, and parallel 5 binary codes are sent to HT9200, HT9200, which is detected, generates audio coding control
Parallel 5 binary codes of signal control clock oscillator and generate dual tone multi-frequency dtmf coding by chip interior Functional Analysis
Signal is exported to signal transmitter by Q2, for the start-up and shut-down control to controlled device.When transmitting terminal MCU102 receives closing
Control signal when, be obtained by calculation close audio coding control signal parallel 5 binary codes, and by parallel 5 two into
Code processed is sent to HT9200, and HT9200 detects parallel 5 binary codes for closing audio coding control signal, by chip
Portion's Functional Analysis, control clock oscillator stop generating dual tone multi-frequency dtmf encoded signal.
When transmitting terminal MCU102, which is received, opens audio player instruction, generation is obtained by calculation and opens source of sound broadcasting
Parallel 8 binary codes of signal are controlled, and parallel 8 binary codes are sent to MP3 player, MP3 player starting is broadcast
It puts preset source of sound audio signal and exports to signal transmitter, issued for warning information.When transmitting terminal MCU102 is received
When stopping audio player instruction, it is obtained by calculation to generate and closes parallel 8 binary codes that source of sound plays control signal, and
Parallel 8 binary codes for closing source of sound broadcasting control signal are sent to MP3 player, MP3 player stops playing default
Source of sound audio signal.
Embodiment two
Based on identical inventive concept, the present invention also provides a kind of audio emission end switch controllers, referring to Fig. 4 institute
Show, comprising:
Double audio decoder 201, receiving end micro-control unit MCU202 and at least one controlled device control switch 203；
The receiving end MCU202 is separately connected with the double audio decoder 201 and at least one controlled device control switch 203；
The 201 outer signal receiver of double audio decoder, when the dual-tone multifrequency for receiving signal receiver transmission
When dtmf code signal, it is decoded, obtain decoded working instruction signal and is output to the receiving end MCU202；
When receiving the working instruction signal that the double audio decoder 201 is sent, the receiving end MCU202 is by institute
Working instruction signal at least one preset code signal corresponding at least one controlled device control switch 203 is stated to carry out
Matching when determining the code signal to match, then sends to corresponding controlled device control switch 203 and opens control letter
Number.
In one embodiment, referring to Figure 5, the audio receiving end switch controller, further includes: signal latch
Device 204, the signal latch 204 are connected between the double audio decoder 201 and the receiving end MCU202, and being used for will
The working instruction signal that the double audio decoder 201 is sent is sent to the receiving end MCU202 after amplifying.
In one embodiment, the audio receiving end switch controller, further includes: at least one switch control electricity
Road, wherein an ON-OFF control circuit is separately connected with the receiving end MCU202 and a controlled device control switch 203,
When receiving the opening control signal that the receiving end MCU202 is sent, the ON-OFF control circuit conducting controls connection
Controlled device control switch 203 is opened.
In one embodiment, referring to Figure 5, the audio receiving end switch controller, further includes: master control detection
Device 205；The master control detector 205 is connect with the receiving end MCU202 and the signal receiver；
When the master control detector 205 receives the audio signal that the signal receiver is sent, the reception is controlled
MCU202 is held to start work.
In one embodiment, referring to Figure 5, the audio receiving end switch controller, further includes: power amplifying device
Control switch 206, the power amplifying device control switch 206 are connect with the master control detector 205；
When the master control detector 205 receives the audio signal that the signal receiver is sent, Xiang Suoshu power amplifier is set
Standby control switch 206 sends opening control signal.
In one embodiment, the power amplifying device control switch 206 is connect with the receiving end MCU202；
When the working instruction signal for receiving the double audio decoder 201 and sending, and determine the password to match
When signal, the receiving end MCU202 sends closing control signal to the power amplifying device control switch 206, and when being delayed default
Between after send opening control signal.
In one embodiment, the double audio decoder 201 and receiving end MCU202 is through the signal latch
204 realize data/address bus connection；
The double audio decoder 201 is tone decoder, and the receiving end MCU202 is single-chip microcontroller, the signal latch
Device 204 is D-type latch.
In one embodiment, the receiving end MCU202 is also connected with crystal oscillating circuit, reset circuit and voltage regulator circuit；
The double audio decoder 201 is also connected with crystal oscillating circuit and for identification resonance circuit of dtmf code signal.
Upon receipt of the audio signal, signal receiver is demodulated to obtain dtmf code signal or preset source of sound audio
Signal, and it is sent to audio receiving end switch controller, when the master control detector 205 of audio receiving end switch controller connects
When receiving the audio signal that the signal receiver is sent, the receiving end MCU202 starting work is controlled.
When audio signal is dtmf code signal, the double audio decoder 201 of audio receiving end switch controller is to it
It is decoded, obtains decoded working instruction signal and be sent to after signal latch 204 amplifies, be output to audio reception
The receiving end MCU202 of end switch controller；When receiving the working instruction signal that the double audio decoder 201 is sent, until
Lack at least one corresponding preset code signal of a controlled device control switch 203 to be matched, what determination matched
When one code signal, then sending opening control signal to corresponding ON-OFF control circuit is connected ON-OFF control circuit, thus
Open controlled device control switch 203, controlled device control switch 203 controls controlled device and starts work, and described be controlled sets
It is standby, for example, it may be, fixed bit warning lamp or other alert devices.
When audio signal is preset source of sound audio signal, the receiving end MCU202 is to audio receiving end switch control
The power amplifying device control switch 206 of device sends opening control signal, so that power amplifying device starts work, signal receiver is sent out
The preset source of sound audio signal sent is broadcasted after carrying out signal amplification by broadcasting equipment outward, the broadcasting equipment, for example, can
To be, loudspeaker.
In a specific embodiment, referring to shown in Fig. 6, the double audio decoder 201 is tone decoder MT8870,
The receiving end MCU202 is single-chip microcontroller 80C51 or 80C52, and the signal latch 204 is D-type latch 74hc573.
The dual tone multi-frequency dtmf encoded signal that signal receiver goes out through 2 human hair combing wastes of connector P1 by capacitor (0.1 μ F) and
Resistance (100k Ω) is coupled to 2 feet of tone decoder MT8870, and connects master control detector by 2 feet of connector P5
205,2 feet of tone decoder MT8870 are the reverse input ends of chip interior operational amplifier, and 3 feet are the output ends of amplifier,
The ratio enlargement resistance of an indirect 100k Ω for input and output；Tone decoder MT887011 foot to 14 feet connection D type latches
The 9-5 foot of device 74hc573, the output data channel of the binary code as dtmf code signal, through D-type latch
It is sent in the RAM of single-chip microcontroller 80C52 after 74hc573 amplification；18 feet of tone decoder MT8870 connect working power VCC, sound
Adjust the resonance circuit that dtmf code signal for identification is connected between 16,17 feet and 18 feet of decoder MT8870.Tone decoding
9 feet of device MT8870 are grounded；1 foot of tone decoder MT8870 is connected with 4 feet；Between 7,8 feet of tone decoder MT8870
Connect crystal oscillating circuit, high-frequency band signals and low band signal in dtmf code signal needed for frequency dividing generates chip interior；Sound
10 feet for adjusting decoder MT8870 are that data allow output end, when 10 feet are high level, allow the binary code in chip
It is exported from 11-14 foot；15 feet of tone decoder MT8870 are the detection output of dtmf code signal, and 15 feet are low electricity when initial
It is flat, when tone decoder MT8870 receives dtmf code signal, the high-frequency band signals of generation and low band signal are distinguished
It send to digital decoder, corresponding binary code is solved by digital decoder, when exporting the binary code solved outward
When, 15 feet are upgraded to high level by low level, are reduced to low level again after preset time, utilize this of tone decoder MT8870
Kind level, which changes characteristic, can be output to D type from 11-14 foot for binary code when detecting 15 feet becomes high level
Latch 74hc573.
11 feet of D-type latch 74hc573 are low level, and the content of latch can be exported normally；D-type latch
10 feet of 74hc573 are grounded, and 1 foot of D-type latch 74hc573 is low level, therefore, can by the two of input terminal 6-9 foot into
Code processed latches preset time span；The 16-12 foot of D-type latch 74hc573 be separately connected single-chip microcontroller 89C52 3,34,
35,36,37 foot.
2 feet of single-chip microcontroller 80C52 are connected to power amplifying device control switch 206 by connector P1；The 5 of single-chip microcontroller 89C52
Foot and 7 feet connect connector P2, the serial communication interface as single-chip microcontroller；The 18-25 foot of single-chip microcontroller 89C52 is connected to connector
P3 connect communication equipment with controllable device easier, quick as 8 road I/O shared ports, and has equipment dilatation sum number
According to management function；40 feet of single-chip microcontroller 89C52 are connected to ON-OFF control circuit, and ON-OFF control circuit is connected to controlled device control
Switch 203, controlled device control switch 203 are connect through connector P4 with controlled device, the controlled device control in the present embodiment
Switch 203 is relay, and ON-OFF control circuit includes a PNP type triode Q2, and in the initial state, 40 feet export high level
Signal, triode Q2 do not work, and MCU controls 40 feet and exports low level signal, triode Q2 conducting, control after password match success
Controlled device control switch 203 processed is connected, i.e. control relay is attracted, so that controlled device be made to start work；Single-chip microcontroller 89C52
14 connect crystal oscillating circuit with 15 feet；38 feet of single-chip microcontroller 89C52 connect power supply VCC, single-chip microcontroller 89C52 through voltage regulator circuit
16 feet ground connection；4 feet of single-chip microcontroller 89C52 connect reset circuit；The 41 of single-chip microcontroller 89C52 are connected to master control through 1 foot of connector
Detector 205；Master control detector 205 is connected to the regulated power supply and connector P1 of receiving end MCU202 through 4 feet of connector
4 feet.Single-chip microcontroller 89C52 receives the binary code of dtmf code signal and preset password compares, comparing result
When consistent, single-chip microcontroller 89C52 output control level control controlled device control switch 203 works, controlled device, such as fixed bit
Warning lamp or other alert devices start work；Meanwhile single-chip microcontroller 89C52 can also be by reserved 8 I/O extension mouth output control electricity
It is flat, for controlling other controlled devices for being connected to 8 I/O extension mouths.
Embodiment three
Based on identical inventive concept, the embodiment of the invention also provides a kind of transmitting end equipments, referring to shown in Fig. 7, packet
It includes: audio emission end switch controller described in signal transmitter, main control device and above-described embodiment one；
The audio emission end switch controller is connect with the signal transmitter and main control device respectively；
The main control device is for controlling the audio emission end switch controller work.
In a specific embodiment, the main control device to the audio emission end switch controller by being supplied
Electricity, starting audio emission end switch controller work, the switch controller issue dtmf code signal or preset source of sound sound
Frequency signal is sent out after signal transmitter is modulated.
Based on identical inventive concept, the embodiment of the invention also provides a kind of receiving devices, referring to shown in Fig. 8, packet
Include: audio described in signal receiver, at least one controlled device, power amplifying device, broadcasting equipment and above-described embodiment two receives
End switch controller；
Audio receiving end switch controller is set with the signal receiver, at least one controlled device and power amplifier respectively
Standby connection；
The power amplifying device is connect with the signal receiver and broadcasting equipment respectively.
Based on identical inventive concept, the embodiment of the invention also provides a kind of data radio station systems, referring to shown in Fig. 9,
It include: above-mentioned transmitting end equipment and above-mentioned receiving device.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
Claims (10)
1. a kind of audio receiving end switch controller characterized by comprising double audio decoder, receiving end micro-control unit
MCU and at least one controlled device control switch；The receiving end MCU and the double audio decoder and at least one controlled set
Standby control switch is separately connected；
The double audio decoder outer signal receiver, when the dual tone multi-frequency dtmf coding letter for receiving signal receiver transmission
Number when, it is decoded, decoded working instruction signal is obtained and is output to the receiving end MCU；
When receiving the working instruction signal that the double audio decoder is sent, the receiving end MCU is by the work order
Signal at least one preset code signal corresponding at least one controlled device control switch is matched, and determines phase
When the code signal matched, then opening control signal is sent to corresponding controlled device control switch.
2. audio receiving end as described in claim 1 switch controller, which is characterized in that further include: signal latch, it is described
Signal latch is connected between the double audio decoder and the receiving end MCU, for sending out the double audio decoder
The working instruction signal sent is sent to the receiving end MCU after amplifying.
3. audio receiving end as described in claim 1 switch controller, which is characterized in that further include: at least one switch control
Circuit processed, wherein an ON-OFF control circuit is separately connected with the receiving end MCU and a controlled device control switch, when
When receiving the opening control signal that the receiving end MCU is sent, the ON-OFF control circuit conducting controls the controlled of connection and sets
Standby control switch is opened.
4. audio receiving end as described in claim 1 switch controller, which is characterized in that further include: master control detector；It is described
Master control detector is connect with the receiving end MCU and the signal receiver；
When the master control detector receives the audio signal that the signal receiver is sent, controls the receiving end MCU and open
It starts building to make.
5. audio receiving end as claimed in claim 4 switch controller, which is characterized in that further include: power amplifying device control is opened
It closes, the power amplifying device control switch is connect with the master control detector；
When the master control detector receives the audio signal that the signal receiver is sent, the control of Xiang Suoshu power amplifying device is opened
It closes and sends opening control signal.
6. audio receiving end as claimed in claim 5 switch controller, which is characterized in that the power amplifying device control switch with
The receiving end MCU connection；
When receiving the working instruction signal of the double audio decoder transmission, and determining the code signal to match,
The receiving end MCU sends closing control signal to the power amplifying device control switch, and sends and open after the preset time that is delayed
Control signal.
7. audio receiving end as claimed in any one of claims 1 to 6 switch controller, which is characterized in that the double voicefrequencydecoding
Device realizes that data/address bus is connect through the signal latch with the receiving end MCU；
The double audio decoder is tone decoder, and the receiving end MCU is single-chip microcontroller, and the signal latch is D type lock
Storage.
8. audio receiving end as claimed in claim 7 switch controller, which is characterized in that the receiving end MCU is also connected with crystalline substance
Shake circuit, reset circuit and voltage regulator circuit；
The double audio decoder is also connected with crystal oscillating circuit and for identification resonance circuit of dtmf code signal.
9. a kind of receiving device characterized by comprising signal receiver, at least one controlled device, power amplifying device, wide
Broadcast equipment and the described in any item audio receiving end switch controllers of claim 1-8；
Audio receiving end switch controller connects with the signal receiver, at least one controlled device and power amplifying device respectively
It connects；
The power amplifying device is connect with the signal receiver and broadcasting equipment respectively.
10. a kind of data radio station system characterized by comprising transmitting end equipment and receiving end as claimed in claim 9 are set
It is standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399666.1A CN110097750A (en) | 2019-05-14 | 2019-05-14 | A kind of audio receiving end switch controller, equipment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399666.1A CN110097750A (en) | 2019-05-14 | 2019-05-14 | A kind of audio receiving end switch controller, equipment and system |
Publications (1)
| Publication Number | Publication Date |
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| CN110097750A true CN110097750A (en) | 2019-08-06 |
Family
ID=67448021
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910399666.1A Pending CN110097750A (en) | 2019-05-14 | 2019-05-14 | A kind of audio receiving end switch controller, equipment and system |
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| CN (1) | CN110097750A (en) |
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| US4939470A (en) * | 1988-05-27 | 1990-07-03 | Samsung Electronics Co., Ltd. | Circuit for generating dual-tone multi-frequency signals and high/low-tone signals |
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| CN1103739A (en) * | 1994-03-02 | 1995-06-14 | 蒋南峰 | Electricity-saving double-tone multi-frequency coding voice paging method and voice paging system |
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Application publication date: 20190806 |