CN101335881A - Remote commanding system - Google Patents
Remote commanding system Download PDFInfo
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- CN101335881A CN101335881A CNA2007101180251A CN200710118025A CN101335881A CN 101335881 A CN101335881 A CN 101335881A CN A2007101180251 A CNA2007101180251 A CN A2007101180251A CN 200710118025 A CN200710118025 A CN 200710118025A CN 101335881 A CN101335881 A CN 101335881A
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Abstract
The invention relates to a remote commanding system, including: broadcast hosts, microphones and monitors at the center-side; and amplifiers, speakers, microphones, image acquisition devices and detectors at remote end. The broadcast host includes an MCU center processor, a multi-signal input and output processing unit, a channel controller, an input interface, a channel interface and/or a USB interface. The amplifier includes an interface recognizing and squelching unit, and a low-frequency suppression unit below 100Hz. The optical transmitter and receiver includes a digital signal processor, an interface identifier, a D/A converter and an A/D converter, a pre-amplifier, an optical drive and optical interfaces. The inventive remote commanding system has advantages of: easy expansion of the number of the remote terminals which are composed by optical fiber transmission and flexible matching outdoor type amplifiers; capability of optionally selecting the remote region and monitoring and returning back to the remote; reliable signal transmission; easy operation; and dependable guarantee to the remote command.
Description
Technical field
The present invention relates to control device, particularly a kind of remote commanding system.
Background technology
Current, in the employed equipment of remote commanding system, very difficult to system's far-end quantity expansion, particularly multi-user's situation can not be monitored passback to far-end; Each audio frequency, video equipment to system's far-end comprise that the far-end sound amplifier can not use with being allowed a choice, such as using a certain far-end or certain several far-end.In addition, the mode of wired connection has limited the distance of far-end, if use Optical Fiber Transmission, then connects with fiber optic transmission system and has any problem, and is difficult to carry out long-distance transmissions.For the problems referred to above are resolved, be badly in need of employed transmission technology of remote commanding system and equipment are innovated.
Summary of the invention
The object of the present invention is to provide a kind of far-end quantity to expand easily, can choose remote area wantonly and far-end is monitored passback, the remote commanding system that the signal transmission is reliable, easy to use.
For achieving the above object, remote commanding system of the present invention, the audio frequency, the video equipment that comprise center-side and some far-ends, also comprise optical transmission device, described optical transmission device comprises some center-side optical transceivers, optical fiber and some far-end ray machine ends, is used to connect audio frequency, the video equipment of center-side and far-end; Described center-side audio frequency, video equipment have many signal inputs, the output processing unit that the audio frequency, the video equipment that are used for described far-end carry out gating; The audio frequency of described center-side audio frequency, video equipment, vision signal are used for commander by audio frequency, the video equipment that described optical transmission device transfers to described far-end, the audio frequency of described far-end, the audio frequency of video equipment, vision signal by described optical transmission device be back to described center-side audio frequency, video equipment is used for gathering and monitoring.
Remote commanding system of the present invention, wherein said center-side audio frequency, video equipment comprise broadcast main frame, video switcher, monitor and alarm controller, and described broadcast main frame is connected to center-side microphone and monitor; The audio frequency of described far-end, video equipment comprise sound amplifier, far-end microphone, image acquisition device and detector, and described sound amplifier is connected to loud speaker.
Remote commanding system of the present invention, wherein said broadcast main frame comprises MCU center processor, the input of many signals, output processing unit, channel controller, input interface, channel interface and/or USB interface, described many signal inputs, output processing unit link to each other respectively with described MCU center processor, input interface and channel interface and/or USB interface, and described channel controller is connected between MCU center processor and channel interface and/or the USB interface.
Remote commanding system of the present invention, wherein said sound amplifier are provided with interface identification and noise elimination unit, the following low frequency of 100Hz suppress the unit, and described interface identification suppresses the unit with the noise elimination unit with the following low frequency of 100Hz and links to each other with the amplifier of described sound amplifier respectively.
Remote commanding system of the present invention, wherein said center-side optical transceiver and far-end optical transceiver are equipped with digital signal processor and the data-interface transducer, interface identifier, D/A converter and the A/D converter that link to each other respectively with described digital signal processor, and an optical interface, be connected to preamplifier and CD-ROM driver respectively between described digital signal processor and the described optical interface.
Remote commanding system of the present invention, wherein said optical transmission device replaces with wire cable.
The advantage of remote commanding system of the present invention is: owing to adopt Optical Fiber Transmission, the far end system that flexible supporting outdoor version sound amplifier is formed, system's far-end quantity is expanded easily, can also can broadcast single far-end simultaneously to all far-end broadcasting, and far-end monitored passback, effectively guaranteed the smooth transmission of signal, its signal transmission is reliable, easy to use, performance is enough to satisfy practical application, for realizing that remote command provides reliable guarantee.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that purpose of the present invention, feature and advantage are had deep understanding.
Description of drawings
Fig. 1 is the block diagram of remote commanding system of the present invention;
Fig. 2 is the block diagram of broadcast main frame among Fig. 1;
Fig. 3 is the block diagram of sound amplifier among Fig. 1;
Fig. 4 is the block diagram of center-side optical transceiver and far-end optical transceiver among Fig. 1;
Fig. 5 is the circuit diagram of many signal inputs, output processing unit among Fig. 2;
Fig. 6 is the circuit diagram of interface identification and noise elimination unit among Fig. 3;
Fig. 7 is the circuit diagram that the following low frequency of 100Hz suppresses the unit among Fig. 3.
Embodiment
With embodiment technical scheme is elaborated below.
Remote commanding system of the present invention is to aim at the remote command designed system, and system comprises audio frequency, video equipment and the optical transmission device of center-side and some far-ends, and optical transmission device comprises center-side optical transceiver 2, optical fiber 3 and some far-end ray machine ends 4.Center-side audio frequency, video equipment have many signal inputs, the output processing unit that the audio frequency, the video equipment that are used for far-end carry out gating; The audio frequency of center-side audio frequency, video equipment, vision signal are used for commander by audio frequency, the video equipment that optical transmission device transfers to far-end, the audio frequency of far-end, the audio frequency of video equipment, vision signal by optical transmission device be back to the center-side audio frequency, video equipment is used for gathering and monitoring.System not only can use cable connection, realizes function among a small circle, can also pass through fibre optic transmission equipment, and the anywhere away from control centre is realized broadcast capability.The far-end sound amplifier can be installed in the far-end away from control centre, and loud speaker is connected nearby with sound amplifier.
With reference to Fig. 1, in remote commanding system of the present invention, center-side audio frequency, video equipment comprise broadcast main frame 1, video switcher 10, monitor 12 and alarm controller 11, and broadcast main frame 1 is connected to center-side microphone 13 and monitor 15; The audio frequency of far-end, video equipment comprise far-end sound amplifier 5, far-end microphone 8, image acquisition device 7 and detector 6, and far-end sound amplifier 2 is connected to loud speaker 9.
With reference to Fig. 2, broadcast main frame 1 comprises MCU center processor, the input of many signals, output processing unit, channel controller, input interface, channel interface and/or USB interface, many signal inputs, output processing unit link to each other respectively with MCU center processor, input interface and channel interface and/or USB interface, and channel controller is connected between MCU center processor and channel interface and/or the USB interface.
After the audio signal connecting system that the broadcast main frame comes a plurality of microphones, recorder or other sources of sound is handled, each far-end is play, function is grouied busy in system, and main frame can be to any one the road or simultaneously to all road speeches; And increased the audio frequency retransmission function.The operating key of main frame has two kinds of forms, 1.. the form of function button and digital keys combination, with the corresponding far-end of address code gating; 2.. functional switch and the form of touching the button combination; The circuit input interface can be external recorder or other audio signals input native system; The circuit output interface can connect other audio processing equipments.
In different embodiment, the built-in digital recording device of broadcast main frame, real time record broadcast content, playback of recorded content in real time; Built-in monitoring system; Quiet design, noiseless during standby; Be provided with USB interface, can be connected, with the audio file of computer editing, storage digital voice recorder record with host computer.
The sound amplifier of far-end aims at outdoor utility and designs.
The application characteristic and the outdoor environment requirement of system have been taken into full account when a. designing.Therefore, this series sound amplifier is easy to use.High reliability is arranged, can be in cold, high temperature, the medium-term and long-term continuous operation of high humidity environment.
When b. sound amplifier only was operated in the voice broadcast service state, circuit can insert low frequency and suppress circuit, and 100Hz is decayed with lower frequency, can effectively suppress power supply or other low-frequency disturbance;
C. tonequality and volume adjusting form have two kinds: 1.. regulate built-in, can not regulated at will, 2.. tonequality and volume adjustment knob expose, and can adjust at any time;
D. sound amplifier has the level pressure output type and hinders two types of output types surely, and the power output of each far-end can randomly changing except nominal rating power.
E. be furnished with many group output interfaces, can satisfy the various forms configuration needs.
F. sound amplifier has carried out quiet design, loud speaker noiseless during holding state.
With reference to Fig. 3, far-end sound amplifier 5 is provided with interface identification and noise elimination unit, the following low frequency of 100Hz suppress the unit, and interface identification suppresses the unit with the noise elimination unit with the following low frequency of 100Hz and links to each other with the amplifier of far-end sound amplifier 5 respectively.
Optical transceiver is to be the supporting fibre optic transmission equipment of long-range Public Address System, makes the broadcast scope of remote commanding system not be subjected to the restriction of cable transmission distance, can extend to anywhere.Optical transceiver does not have the compressed digital processing to the various signals that will transmit, and arrives a distant place by Optical Fiber Transmission.Optical transceiver has multiple model, can transmit two way audio, control signal and the address code signal of long-range Public Address System, also can transmit picture signal and other control signal of the various standards in 1-4 road from far-end toward control centre.
With reference to Fig. 4, center-side optical transceiver 3 is identical with far-end optical transceiver 5 structures, be equipped with digital signal processor and the data-interface transducer, interface identifier, D/A converter and the A/D converter that link to each other respectively with digital signal processor, and an optical interface, be connected to preamplifier and CD-ROM driver between digital signal processor and the optical interface respectively.
Below the main circuit in the remote commanding system of the present invention is described.
With reference to Fig. 5, in the broadcast main frame, the electrical schematic diagram of many signals being imported, exported processing unit is described as follows:
IC1 is a double trigger, and each and IC1 identical triggering device trigger broadcasting signal and the return path signal path of opening a channel interface respectively.Like this, each passage broadcasting signal and passage return path signal passage can be distinguished gating.
Audio frequency broadcasts the passage gating:
(1). during gating, the b point of IC1 and c point current potential are not " 0 " to passage, and electronic switch IC4 closes, and the G point does not broadcast audio signal output, does not have DC potential yet.
(2). from the keyboard and the instruction of switch input gating of broadcast main frame, the b point of IC1 and the logic level that c is ordered rise to 1 by 0, and electronic switch IC4 is open-minded, and the broadcasting signal of IC2 output is level equipment after interface is delivered to.Simultaneously, the DC potential that M is ordered also is superimposed upon and together outputs to back level equipment on the signaling interface, and this DC potential is closed the noise elimination function of back level equipment.
Audio frequency return path gating:
(1). during gating, the d point of IC1 and e point current potential are not " 0 " to passage, and electronic switch IC5 closes, and IC3 does not have the audio signal input of passback.
(2). from broadcast host keyboard and the instruction of switch input gating, the d point of IC1 and the logic level that e is ordered rise to 1 by 0, and electronic switch IC5 is open-minded, and the audio signal of passback can be delivered to the input of amplifier IC3.
With reference to Fig. 6, in the broadcast main frame, the electrical schematic diagram of docking port identification and noise elimination unit is described as follows:
In the remote commanding system of the present invention, the components and parts that all are relevant with the audio frequency signal to noise ratio are all selected high-quality low noise components and parts for use.In addition, in the output of the voice-grade channel that each equipment broadcasts far-end, the input interface, designed unique " interface identification " circuit.When system " standby ", or system connects when breaking down, and can effectively guarantee " noise elimination " state of far-end sound amplifier.
" interface identification " circuit working process is as follows:
(1). broadcast passage not during gating, the b point of IC1 and c point current potential are " 0 ", and electronic switch IC4 closes, and the G point does not broadcast audio signal output, and the DC potential that M is ordered can not be added to the G point.The N point current potential of back level equipment interface is " 0 ", and squelch circuit starts.
(2). when broadcasting passage by gating, the b point of IC1 and the logic level that c is ordered rise to 1 by 0, and electronic switch IC4 is open-minded, and the DC potential that M is ordered also is superimposed upon and together outputs to back level equipment on the signaling interface, closes the noise elimination functional circuit of back level equipment.Signal can be delivered to late-class circuit and normally amplify.
The squelch circuit course of work is as follows:
(1) .IC2 constitutes comparator, and R6 and R7 form the comparative voltage reference value to the V+ dividing potential drop through R9 at IC2 " b " point.
(2). when the passage of broadcast main frame does not have gating or system's bad connection, interface " N " some DC potential is " 0 ", " a " some current potential of IC2 is " 0 ", IC2 " e " some current potential is " 1 ", the IC3 conducting, squelch circuit starts, and the signal path of IC1 " f " point is shorted to ground through C3, and amplifier is in " noise elimination " state.
(3). behind the passage gating of broadcast main frame, on the signaling interface of broadcast main frame or the signaling interface of far-end optical transceiver, be superimposed with DC potential, " N " some DC potential is " 1 ", " a " some current potential of IC2 is " 1 ", and IC2 " e " some current potential is " 0 ", and IC3 ends, squelch circuit is closed, and the signal of IC1 output can be delivered to late-class circuit and normally amplify.
(4) value of .R4, R5 is enough big, can ignore the shunting of signal, also can not cause " N " some DC potential obviously to fluctuate, and just can not introduce additional noise to amplifier.
(5) .IC2 can also be from " H " some output DC position, " the leading to " or " breaking " of broadcasting audio signal channel in the control optical transceiver.
With reference to Fig. 7, in the far-end sound amplifier, the electrical schematic diagram that the following low frequency of 100Hz is suppressed the unit is described as follows:
Among Fig. 7, capacitance-resistance C1, C2, R1, R2 and amplifier IC1 form high pass filter, and the corner frequency of this filter is 100Hz.This filter is serially connected with in the sound amplifier amplifying circuit, and the signal that is higher than corner frequency can normally pass through, and the signal that is lower than 100Hz is attenuated 4-6db.This filter is used for sound amplifier, can effectively eliminate the abominable interference of introducing of far-end power supply environment.
With reference to Fig. 4, as follows to the circuit transmission procedure declaration of optical transceiver.
At far-end, the data-signal of detector outputs to alarm controller 11 through data-interface transducer and digital signal processor, and control signal then outputs to relevant device through data-interface transducer and digital signal processor.Optical transceiver can be unidirectional to transmission of video signals, the optical transceiver emission that is connected with video signal source, and the optical transceiver that is connected with monitor receives.Optical transceiver also can be two-way to transmission of video signals, and the optical transceiver of each end is then not only sent out but also receive for vision signal.
Be connected to A/D converter during optical transceiver emission video signal, be connected to D/A converter during the optical transceiver receiving video signals.The vision signal that image acquisition device collects, video interface by optical transceiver, be connected to A/D converter and convert parallel digital signal to, become coded digital signal through digital signal processor processes, CD-ROM driver is the digital signal input optical interface after handling, and this video signal is sent to the center-side optical transceiver through optical fiber.The light signal that optical interface receives becomes the signal of telecommunication through opto-electronic conversion, after preposition amplification, delivers to digital signal processor, and coded digital signal is decoded becomes parallel digital signal, delivers to D/A converter again and becomes and can supply the monitor video signal displayed.
Audio input signal is transferred to A/D converter through the interface identifier, after A/D converts the Parallel Digital sign indicating number to, sends into digital signal processor processes.The process Optical Fiber Transmission is carried out decoding processing to the digital signal processor of audio interface receiving end, and converting to through D/A converter can be for the audio signal of loud speaker sounding again.
It is the chip formation of EPM3128, AD9280 and AD9708 that digital signal processor, A/D converter and D/A converter adopt model respectively.
In other embodiment of remote commanding system of the present invention, optical transmission device replaces with wire cable, uses cable connection, can realize same function among a small circle.
By the explanation to main circuit, remote commanding system of the present invention as can be seen has following function and effect:
A. can be simultaneously to all far-end broadcasting;
B. can be to single far-end broadcasting;
C. system's far-end quantity is expanded easily;
D. far-end can be formed system by flexible configuration outdoor version sound amplifier;
E. can monitor passback to far-end;
F. adopt supporting fiber optic transmission system, effectively guaranteed the smooth transmission of signal, its signal transmission is reliable, the control action sensitivity, and easy to use, performance is enough to satisfy practical application, for realizing that remote command provides reliable guarantee.
Claims (6)
1. remote commanding system, the audio frequency, the video equipment that comprise center-side and some far-ends, it is characterized in that: also comprise optical transmission device, described optical transmission device comprises some center-side optical transceivers (2), optical fiber (3) and some far-end ray machine ends (4), is used to connect audio frequency, the video equipment of center-side and far-end; Described center-side audio frequency, video equipment have many signal inputs, the output processing unit that the audio frequency, the video equipment that are used for far-end carry out gating; The audio frequency of described center-side audio frequency, video equipment, vision signal are used for commander by audio frequency, the video equipment that described optical transmission device transfers to described far-end, the audio frequency of described far-end, the audio frequency of video equipment, vision signal by described optical transmission device be back to described center-side audio frequency, video equipment is used for gathering and monitoring.
2. remote commanding system according to claim 1, it is characterized in that: wherein said center-side audio frequency, video equipment comprise broadcast main frame (1), video switcher (10), monitor (12) and alarm controller (11), and described broadcast main frame (1) is connected to center-side microphone (13) and monitor (15); The audio frequency of described far-end, video equipment comprise sound amplifier (5), far-end microphone (8), image acquisition device (7) and detector (6), and described sound amplifier (2) is connected to loud speaker (9).
3. according to claim 1 or 2 described remote commanding systems, it is characterized in that: wherein said broadcast main frame (1) comprises MCU center processor, the input of many signals, output processing unit, channel controller, input interface, channel interface and/or USB interface, described many signal inputs, output processing unit link to each other respectively with described MCU center processor, input interface and channel interface and/or USB interface, and described channel controller is connected between described MCU center processor and described channel interface and/or the USB interface.
4. remote commanding system according to claim 3, it is characterized in that: wherein said far-end sound amplifier (5) is provided with interface identification and noise elimination unit, the following low frequency of 100Hz suppress the unit, and described interface identification suppresses the unit with the noise elimination unit with the following low frequency of 100Hz and links to each other with the amplifier of described sound amplifier (5) respectively.
5. according to the remote commanding system of claim 4, it is characterized in that: wherein said center-side optical transceiver (3) and far-end optical transceiver (5) are equipped with digital signal processor and the data-interface transducer, interface identifier, D/A converter and the A/D converter that link to each other respectively with described digital signal processor, and an optical interface, be connected to preamplifier and CD-ROM driver respectively between described dedicated digital signal processor and the described optical interface.
6. according to the remote commanding system of claim 5, it is characterized in that: wherein said optical transmission device replaces with wire cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101180251A CN101335881A (en) | 2007-06-27 | 2007-06-27 | Remote commanding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101180251A CN101335881A (en) | 2007-06-27 | 2007-06-27 | Remote commanding system |
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| CN101335881A true CN101335881A (en) | 2008-12-31 |
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| CNA2007101180251A Pending CN101335881A (en) | 2007-06-27 | 2007-06-27 | Remote commanding system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635836A (en) * | 2009-06-07 | 2010-01-27 | 傅骞 | Full duplex radio control video data link |
| CN101969344A (en) * | 2010-10-15 | 2011-02-09 | 复旦大学 | Fiber photoelastic effect based larger-area sound monitoring system |
| AU2009342702B2 (en) * | 2009-04-07 | 2012-09-20 | Zte Corporation | Method, system and terminal for transmitting continuous service multiplexing configuration information |
| CN107016254A (en) * | 2017-06-06 | 2017-08-04 | 广州中海电信有限公司 | A kind of tele-medicine integral system based on satellite communication |
| CN107046662A (en) * | 2017-06-20 | 2017-08-15 | 北京贝能达信息技术股份有限公司 | Track traffic broadcast multi-channel noise detection volume controller and control method |
| CN115333623A (en) * | 2022-07-25 | 2022-11-11 | 中关村芯海择优科技有限公司 | Unidirectional laser communication method, storage medium, acquisition end, monitoring end and equipment |
-
2007
- 2007-06-27 CN CNA2007101180251A patent/CN101335881A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2009342702B2 (en) * | 2009-04-07 | 2012-09-20 | Zte Corporation | Method, system and terminal for transmitting continuous service multiplexing configuration information |
| CN101635836A (en) * | 2009-06-07 | 2010-01-27 | 傅骞 | Full duplex radio control video data link |
| CN101969344A (en) * | 2010-10-15 | 2011-02-09 | 复旦大学 | Fiber photoelastic effect based larger-area sound monitoring system |
| CN101969344B (en) * | 2010-10-15 | 2014-01-08 | 复旦大学 | Fiber photoelastic effect based larger-area sound monitoring system |
| CN107016254A (en) * | 2017-06-06 | 2017-08-04 | 广州中海电信有限公司 | A kind of tele-medicine integral system based on satellite communication |
| CN107046662A (en) * | 2017-06-20 | 2017-08-15 | 北京贝能达信息技术股份有限公司 | Track traffic broadcast multi-channel noise detection volume controller and control method |
| CN115333623A (en) * | 2022-07-25 | 2022-11-11 | 中关村芯海择优科技有限公司 | Unidirectional laser communication method, storage medium, acquisition end, monitoring end and equipment |
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Open date: 20081231 |