CN206948592U - Multichannel for handling more radio signals inputs gates public address set circuit - Google Patents
Multichannel for handling more radio signals inputs gates public address set circuit Download PDFInfo
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- CN206948592U CN206948592U CN201720576971.XU CN201720576971U CN206948592U CN 206948592 U CN206948592 U CN 206948592U CN 201720576971 U CN201720576971 U CN 201720576971U CN 206948592 U CN206948592 U CN 206948592U
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Abstract
The utility model discloses a kind of multichannel for being used to handle more radio signals inputs to gate public address set circuit, including signal converting circuit, display switching circuit and speech amplifying circuit, the signal converting circuit (1) is used to gate radio signals from multiple radio signals, the display switching circuit (2) is used to show that what is currently gated has the signal of input, and the audio-amplifying circuit (3) is used to carry out the radio signals of gating volume expansion to export.Multichannel gating circuit of the present utility model, by the particular circuit configurations for the display switching circuit being provided with, using wherein optimization and improve circuit layout, and match to coordinate match control accordingly, and the matching connection with signal converting circuit, so as to manage the traffic operation between multi-section radio station well.
Description
Technical field
The utility model belongs to communication technical field, and in particular to a kind of multichannel for being used to handle more radio signals inputs
The public address set circuit of gating.
Background technology
In some environment, exist while connect multi-section radio station and carry out the demand of telephone operation respectively, in part occasion
Middle radio station quantity can be with up to 6, and a selection wherein radio station is typically only capable in telephone operation and carries out current talking, therefore
Need the switching of progress radio station and channel.
At present, the process of handoff radio and channel needs to realize by adjusting each radio station, and the regulation in each radio station
It is related to the link such as gating configuration of circuit when the setting and regulation, switching of radio station parameters, therefore whole handoff procedure needs
The plenty of time is wasted on allocating radio, its switching efficiency and accuracy rate can not all ensure to need in real time.
Utility model content
For the disadvantages described above or Improvement requirement of prior art, the utility model provides a kind of for handling more radio signals
The multichannel gating public address set circuit of input, it can solve to need in more radio station handoff procedures by the circuits improvement of optimization
The problem of carrying out radio station parameter configuration condition and low switching efficiency.
To achieve these goals, the utility model provides a kind of multichannel gating for being used to handle more radio signals inputs
Public address set circuit, it is characterised in that including signal converting circuit, display switching circuit and the speech amplification electricity being sequentially connected electrically
Road, the signal converting circuit are used to gate radio signals from multiple radio signals, and the display switching circuit is used to show
What is currently gated has the signal of input, and the audio-amplifying circuit is used to carry out the radio signals of gating volume expansion to export；
Wherein, the signal converting circuit connects including radio interface, signal gating circuit, master control and telecommunication circuit, output
Mouth, power circuit, detection isolation circuit and radio station input detecting circuit, wherein, the radio interface is and external electrical number of units amount
Matching it is multiple, the signal gating circuit to be multiple with the radio interface quantity Matching, and with a pair of radio interface 1
Should connect, the power circuit respectively with each signal gating circuit, the signal converting output interface and the master control
And telecommunication circuit connection, to be powered respectively, the signal gating circuit also simultaneously with the signal output interface and described
Control unit connects, and described control unit gates the signal of one of them signal socket connector input that there is signal to input to correspondingly
The master control of connection and telecommunication circuit handle simultaneously and then exported to signal output interface, for the processing that shows and amplify.
As further improvement of the utility model, the power circuit includes multiple correspond to respectively and is connected with radio interface
Diode, in addition to capacitor filtering unit and voltage regulation unit, power supply signal after the capacitor filtering unit filtering by
The voltage regulation unit carries out voltage stabilizing output, thinks that other circuits are powered.
As further improvement of the utility model, the signal gating circuit, radio station input detecting circuit and detection every
Include photoelectrical coupler controller, filter circuit and comparator from circuit, wherein, the comparator is corresponding for multilevel iudge
Signal gating circuit whether have signal input, and when there is signal input, feed back corresponding signal to the master control and communication
The signal that circuit, the master control and telecommunication circuit are used to be fed back according to the comparator controls the photoelectrical coupler to turn on, will
In signal access signal output interface.
As further improvement of the utility model, the display switching circuit includes master control and telecommunication circuit, prompt tone
Circuit, display circuit, signal input interface, signal output interface and power circuit, wherein, the master control and telecommunication circuit difference
Be connected with signal input interface, prompting sound circuit and display circuit, signal input interface also respectively with signal output interface and electricity
Source circuit is connected, and the output signal of the signal input interface reception signal built-up circuit is simultaneously inputted to master control and telecommunication circuit,
The master control and telecommunication circuit show current state by detecting toggle switch position, control display circuit, and control prompt tone electric
Road sends prompt tone, and the signal after selection is handled is sent to the signal output interface with direct by signal input interface
Output.
In general, by the contemplated above technical scheme of the utility model compared with prior art, can obtain down
Row beneficial effect：
(1) multichannel gating circuit of the present utility model, by the physical circuit knot for the display switching circuit being provided with
Structure, using wherein optimizing and improve circuit layout, and match to coordinate match control accordingly, and with signal converting circuit
Matching connection, so as to manage the traffic operation between multi-section radio station well.
(2) multichannel gating circuit of the present utility model, can be good at providing scope wider array of communication for loading vehicles
Listen to scope.
Brief description of the drawings
Fig. 1 is that a kind of multichannel gating for being used to handle more radio signals inputs of the utility model one embodiment amplifies
The principle composition frame chart of device circuit；
Fig. 2 is the principle schematic of signal converting circuit in Fig. 1；
Fig. 3 is the principle schematic of radio interface in Fig. 2；
Fig. 4 is the principle schematic of signal gating circuit in Fig. 2；
Fig. 5 is the principle schematic of master control and telecommunication circuit in Fig. 2；
Fig. 6 is the principle schematic of output interface circuit in Fig. 2；
Fig. 7 is the principle schematic of switching power circuit in radio station in Fig. 2；
Fig. 8 is the principle schematic that input state detects isolation circuit in Fig. 2；
Fig. 9 is the principle schematic that input state detects circuit in Fig. 2；
Figure 10 is the structural representation that switching circuit is shown in Fig. 1；
Figure 11 is the principle schematic that switch prompting sound circuit is shown in Figure 10；
Figure 12 is the principle schematic of status display circuit in Figure 10；
Figure 13 is the principle schematic that partial circuit in switching circuit is shown in Figure 10；
In all of the figs, same reference represents identical technical characteristic, is specially：1 is signal converting circuit；
2 be display switching circuit；3 be audio-amplifying circuit；11 be radio interface；12 be signal gating circuit；13 be the first master control and communication
Circuit；14 be output interface；15 be power circuit；16 be detection isolation circuit；17 be radio station input detecting circuit；21 be
Two master controls and telecommunication circuit；22 be prompting sound circuit；23 be display circuit；24 be signal input interface；25 connect for signal output
Mouthful；26 be power circuit；Rx represents resistance；Cx represents electric capacity；Dx represents diode；RLx, ISOx represent photoelectrical coupler；Vx
Represent integrated three-terminal regulator；Jx, JPx represent connector；SWx is switch element；Ux represents integrated chip；Above x represents mark
Number value.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
As long as in addition, technical characteristic involved in each embodiment of the utility model disclosed below each other it
Between do not form conflict can be mutually combined.
Fig. 1 is that a kind of multichannel gating for being used to handle more radio signals inputs of the utility model one embodiment amplifies
The principle composition frame chart of device circuit；Fig. 2 is the principle schematic of the signal converting circuit 1 of circuit in Fig. 1；Fig. 3 is to show in Fig. 1
Show the principle schematic of switching circuit 2；Fig. 4 is the principle schematic of audio-amplifying circuit 3 in Fig. 1.
As shown in figure 1, the multichannel gating public address set circuit bag for being used to handle more radio signals inputs of the present embodiment
Include signal converting circuit 1, display switching circuit 2 and audio-amplifying circuit 3.Wherein, signal converting circuit 1 is used for gating signal, display
Switching circuit 2 is used to show the current signal for having input, and MAX485 chips are preferably used in the present embodiment, and itself and display switching are electric
Row data communication is entered on road；Audio-amplifying circuit 3 is used to expand volume.
As illustrated in fig. 1 and 2, signal converting circuit 1 includes radio interface 11, signal gating circuit 12, master control and communication electricity
Road 13, output interface 14, power circuit 15, detection isolation circuit 16, radio station input detecting circuit 17.
As shown in Fig. 2 radio interface 11 can be multiple, for matching connection with multi-section radio station respectively, the present embodiment
Radio interface quantity is preferably 6 in Fig. 2, but the quantity of radio interface 11 is not construed as limiting in the utility model, can basis
Actual demand carries out specifically chosen.
As shown in Fig. 2 signal gating circuit 12 is multiple with the quantity Matching of radio interface 11, in Fig. 2 of the present embodiment
Preferably 6, but the quantity of signal gating circuit 12 is not construed as limiting in the utility model, can be had according to the actual requirements
Body select, as long as with the quantity Matching of radio interface 12.Each signal gating circuit 12 respectively with corresponding radio interface 11 1
One connection, by the radio signals input signal gating circuit 12 of the corresponding interface.
Power connector and each radio interface 11 are connected with power circuit 15, each one end of radio interface 11 be used for
Outside radio signals connection, the other end connect with corresponding signal gating circuit 12.
Power circuit 15 is respectively that each several part circuit provides power supply.It is independently-powered that power circuit 15 is subjected to power connector
With radio interface power supply two ways.As shown in Fig. 2 power circuit 15 connects including multiple radio station that correspond respectively in the present embodiment
Diode, capacitor filtering unit and the voltage regulation units of the connection of mouth 11, power supply is through diode current flow and through the capacitor filtering unit
Voltage stabilizing output is carried out by voltage regulation unit after filtering.
Each signal gating circuit 12 is also connected with signal converting output interface 14, master control and telecommunication circuit 13 simultaneously, main
Control and telecommunication circuit 13 gate one of them have signal input signal radio interface 11 be connected to by gating circuit 12 it is defeated
Outgoing interface 14, for the processing that shows and amplify.
Master control and telecommunication circuit 13 include the minimum system circuit and one piece of such as MAX458 communication chip of one piece of single-chip microcomputer,
The processing to communication data and gating and the identification operation of input signal are realized by way of writing program.The utility model
In scheme, control unit U15 is preferably single-chip microcomputer, and it controls unlike signal loop and detection defeated by different pins respectively
Enter state.In radio interface when wherein having signal input all the way, corresponding pin detects low level, indicates signal input.
Control unit U15 determines the input state of radio interface 11 according to the low level signal received, and according to display switching circuit
Photoelectrical coupler conducting in gating circuit 12 corresponding to control command control so that corresponding signal is defeated by output interface
Go out, telecommunication circuit uses 485 standard communication protocols.
Gating circuit 12 and detection signal isolation circuit 16 include photoelectrical coupler controller, radio station input detecting circuit 17
Comprising filter circuit and comparator, the gating of signal controls (RL1, RL2, RL3 in such as Fig. 2,3 light by photoelectrical coupler
Electric coupler composition gates all the way), when master control and telecommunication circuit 13 provide control signal (preferably low level), photoelectric coupling
The LED of device is lighted, and signal is accessed into output interface 14.When there is signal input, signal is through in the input detecting circuit of radio station
After filter circuit, then through comparator multilevel iudge whether there is voice signal input, pass through if having phonetic entry and detect isolation electricity
Photoelectrical coupler in road 16 gives control unit one low level, indicates signal input.
Conventional signaling switch device has relay, FET, triode, controllable silicon.Wherein only have relay to carry
Isolation, can avoid the coupling of control signal and input signal well, but relay in adhesive and is released per se with big coil
Larger induced field can be produced during putting interference is produced to signal.The present embodiment preferably uses photoelectrical coupler, can be very
Good solves the problems, such as interference and isolation.Whether conventional detection radio station, which has audio input, is detected by PTT signals, this
The method of signal input preferably is determined whether using by directly detecting audio signal in embodiment, has directly broken away from PTT
Signal wire.
As shown in figs. 1 and 10, display switching circuit includes master control and telecommunication circuit 21, prompting sound circuit 22, display circuit
23rd, signal input interface 24, signal output interface 25, power circuit 26.Wherein, master control and telecommunication circuit 21 are defeated with signal respectively
Incoming interface 24, prompting sound circuit 22 and display circuit 23 connect, signal input interface 24 also respectively with signal output interface 25 and
Power circuit 26 connects, and signal input interface 24 introduces positive-negative power, the output signal of signal converting circuit 1, communication data,
By detecting toggle switch position, control display circuit 23 shows current state, and controls prompt tone for master control and telecommunication circuit 21
Circuit 26 sends prompt tone, and signal output interface 25 directly exports selected signal.
As shown in Figure 11~13, master control and telecommunication circuit 21 mainly for detection of rotary switch SW3 state, and according to shape
State sends control command to signal converting circuit 1, selects certain to pass through all the way.Prompting sound circuit 22 is used to send when having signal input
Auditory tone cues, mainly it is made up of buzzer and triode.Display circuit 23 is used for the input state for showing signal, by LED light group
Into.Power circuit 26 is made up of integrated voltage-stabilized chip to be formed, for display switching circuit power supply.Signal input 24 and signal output 25
Connector is preferably all, for connecting the main circuit in 3 parts.
As shown in figure 1, audio-amplifying circuit includes filter circuit, radio signals amplifying circuit, external interface, speech input electricity
Road, output matching circuit, power circuit.Wherein, the existing signal input of external interface has signal output again, and the signal of input passes through
Physical sound is become after signal amplification circuit.Speech input circuit is used to physical sound being converted to electric signal, then through words
After the amplification of sound amplifying circuit, by output matching circuit and filter circuit cascaded-output.Filter circuit is used for showing switching circuit
The radio signals of transmission are filtered processing.Radio signals amplifying circuit is used to amplify the radio signals for showing switching circuit transmission
And switch to sound by loudspeaker.Speech input circuit is used to receive voice signal, and sound is converted into electric signal, sent simultaneously
PTT signals.Speech amplifying circuit is used to amplify voice signal, makes faint voice signal be easy to transmit after amplifying.Output matching
Circuit is used to be matched the signal after amplification with the input requirements in radio station.Power circuit is made up of integrated voltage-stabilized chip, is used
Powered in audio-amplifying circuit 1.
During work, when one of radio station, to have signal to enter fashionable, input state detection circuit 17 and input state detection
Isolation circuit 16 has detected signal input, and low level, subsequent single-chip microcomputer are detected on master control and the corresponding pin of telecommunication circuit 13
Master control and telecommunication circuit 21 into display switching circuit 2 send status command at regular intervals.Master control and telecommunication circuit 21
According to status command by the dispaly state of display circuit 23, meanwhile, master control and the detection rotary switch of telecommunication circuit 21 SW3 shape
State, if stateful change, control prompting sound circuit 22 provides prompt message；Send and work as at regular intervals if not changing
Preceding radio station select command word is to the master control in signal converting circuit 1 and telecommunication circuit 13, the single-chip microcomputer root in signal converting circuit 1
It is corresponding all the way by the way that signal flows through display switching circuit and eventually arrives at the electricity that amplifies according to the selection of command word control signal gating circuit 12
Road, carry out the passback of radio signals enhanced processing and voice signal.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
For limiting the utility model, any modification of all made within spirit of the present utility model and principle, equivalent substitution and change
Enter, should be included within the scope of protection of the utility model.
Claims (4)
1. a kind of multichannel gating public address set circuit for being used to handle more radio signals inputs, it is characterised in that including successively
Signal converting circuit (1), display switching circuit (2) and the speech amplifying circuit (3) of electrical connection, the signal converting circuit (1)
For gating radio signals from multiple radio signals, the display switching circuit (2) is used to show that what is currently gated has input
Signal, the audio-amplifying circuit (3) is used to carrying out volume to the radio signals of gating expanding to export；
Wherein, the signal converting circuit (1) includes radio interface (11), signal gating circuit (12), master control and telecommunication circuit
(13), output interface (14), power circuit (15), detection isolation circuit (16) and radio station input detecting circuit (17), wherein, institute
It is to be and the radio interface with flux matched multiple of external electrical number of units, the signal gating circuit (12) to state radio interface (11)
(11) quantity Matching is multiple, and is connected one to one with the radio interface (11), the power circuit (15) respectively with respectively
Individual the signal gating circuit (12), the signal converting output interface (14) and the master control and telecommunication circuit (13) connection,
To be powered respectively, the signal gating circuit (12) also connects with the signal output interface (14) and control unit simultaneously
Connect, the signal that described control unit gates one of them signal gating circuit (12) input that there is signal to input connects to corresponding
Master control and telecommunication circuit (13) handle and and then export to signal output interface (14), for the place that shows and amplify
Reason.
2. a kind of multichannel gating public address set circuit for being used to handle more radio signals inputs according to claim 1,
Wherein, the power circuit (15) includes multiple diodes for corresponding to be connected with radio interface (11) respectively, in addition to electric capacity filter
Ripple unit and voltage regulation unit, it is defeated that power supply signal carries out voltage stabilizing after the capacitor filtering unit filtering by the voltage regulation unit
Go out, think that other circuits are powered.
A kind of 3. multichannel gating public address set electricity for being used to handle more radio signals inputs according to claim 1 or 2
Road, wherein, the signal gating circuit (12), radio station input detecting circuit (17) and detection isolation circuit (16) include photoelectricity coupling
Clutch controller, filter circuit and comparator, wherein, the comparator is used for signal gating circuit corresponding to multilevel iudge
(12) whether there is signal input, and when there is signal input, feed back corresponding signal to the master control and telecommunication circuit (13), institute
State master control and telecommunication circuit (13) is used to control the photoelectrical coupler to turn on according to the signal of comparator feedback, by signal
Access in signal output interface (14).
A kind of 4. multichannel gating public address set electricity for being used to handle more radio signals inputs according to claim 1 or 2
Road, wherein, the display switching circuit includes master control and telecommunication circuit (21), prompting sound circuit (22), display circuit (23), letter
Number input interface (24), signal output interface (25) and power circuit (26), wherein, the master control and telecommunication circuit (21) are respectively
Be connected with signal input interface (24), prompting sound circuit (22) and display circuit (23), signal input interface (24) also respectively with
Signal output interface (25) and power circuit (26) connection, signal input interface (24) the reception signal built-up circuit (1)
Output signal simultaneously input to master control and telecommunication circuit (21), the master control and telecommunication circuit (21) by detecting toggle switch position,
Control display circuit (23) to show current state, and control prompting sound circuit (26) to send prompt tone, and after selection is handled
Signal is sent to the signal output interface (25) by signal input interface (24) directly to export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720576971.XU CN206948592U (en) | 2017-05-23 | 2017-05-23 | Multichannel for handling more radio signals inputs gates public address set circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720576971.XU CN206948592U (en) | 2017-05-23 | 2017-05-23 | Multichannel for handling more radio signals inputs gates public address set circuit |
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| Publication Number | Publication Date |
|---|---|
| CN206948592U true CN206948592U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720576971.XU Active CN206948592U (en) | 2017-05-23 | 2017-05-23 | Multichannel for handling more radio signals inputs gates public address set circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071656A (en) * | 2017-05-23 | 2017-08-18 | 武汉中电通信有限责任公司 | Multichannel for handling many radio signals inputs gates public address set circuit |
-
2017
- 2017-05-23 CN CN201720576971.XU patent/CN206948592U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071656A (en) * | 2017-05-23 | 2017-08-18 | 武汉中电通信有限责任公司 | Multichannel for handling many radio signals inputs gates public address set circuit |
| CN107071656B (en) * | 2017-05-23 | 2023-04-28 | 武汉中电通信有限责任公司 | Multichannel gating loudspeaker circuit for processing multi-station signal input |
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