CN201830334U - Single-plate type instruction amplification plate - Google Patents
Single-plate type instruction amplification plate Download PDFInfo
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- CN201830334U CN201830334U CN2010205662299U CN201020566229U CN201830334U CN 201830334 U CN201830334 U CN 201830334U CN 2010205662299 U CN2010205662299 U CN 2010205662299U CN 201020566229 U CN201020566229 U CN 201020566229U CN 201830334 U CN201830334 U CN 201830334U
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Abstract
The utility model relates to a single-plate type instruction amplification plate, wherein a peripheral microprocessor, an audio power amplifier, a signal sound generator, a busy tone and no-tone detection circuit, a picking and hanging detection circuit, a constant flow source feed circuit, a ringing detection circuit, a communication device user port, a phone port, a broadcast speaker port and a supply circuit are arranged on a printed circuit board. The single-plate type instruction amplification plate is also additionally equipped with an audio power amplification processor, an amplitude limiting circuit, an audio power amplification and line protection circuit, a power-failure change-over circuit, a 2/4 wiring system change-over and called mode selection circuit, a microphone interface circuit, and a microphone interface and double-audio detection circuit. The single-plate type instruction amplification plate has the advantage of reasonable structure, not only can be mated with communication equipment in accordance with national standards, but also can constitute a new meeting terminal independently; and the multifunction selectivity, operational stability and reliability are all obviously improved.
Description
Technical field
The utility model belongs to the communication equipment technical field, relates in particular to a kind of feature board in the communication equipment, specifically is meant a kind of one-board instruction amplification plate.
Background technology
In enterprise production process, the schedule job instruction is issued to each production station by dispatch control person by communication equipment, and especially to the big and spacious production environment post of on-site noise, instruction promptly and accurately is issued to on-the-spot for guaranteeing that safety in production plays an important role.Generally adopt the form of post situ configuration broadcast ﹠ call at the solution in the big and spacious production environment post of on-site noise.In December, 2008≤Tianjin University of Technology's journal 〉=27th volume the 6th phase the 65th, 66,67 pages of Guo Cui beautiful etc. deliver≤design 〉=article based on the hands free telephone machine of AT89C2051 in, the employing single-chip microcomputer of author designed is the hands free telephone of control core, and its technical characterictic: the hands free telephone machine is made of plain old telephone machine circuit and single chip machine controlling circuit.The plain old telephone machine circuit is made up of polar protective circuit, switching circuit, dial-up circuit, speaking circuit, ringing circuit etc.; Single chip machine controlling circuit is made up of AT89C2051 single-chip microcomputer, picking/hanging machine detection circuit, busy tone testing circuit, ring detecting circuit, power amplifier, house dog and output control circuit etc.Described according to article, in process of production, can under the 110dB high-noise environment, realize clear conversation, reduce phone and miss, enhance productivity.Yet by analyzing the power circuit of hands free telephone, three kinds of power supply: 5V, 12V of work, 30V must provide 220V AC power at the scene, could obtain by rectifying and voltage-stabilizing.Therefore because the demand of on-the-spot power supply causes field apparatus safety and problem with grounding, the useful life of while equipment is influence to some extent under rugged environment, particularly essential integral replacing hands free telephone after equipment breaks down.
In addition, the someone has applied for " a kind of instruction user plate " (patent No.: utility model patent CN 201336682Y) by name.It is characterized in that: instruction user plate is provided with CPU, audio frequency amplifier, tone generator, busy indicating circuit, plucks, on-hook detection circuit, constant current feed circuit, ring detecting circuit, busy tone testing circuit, no tone detection circuit, group, exhale circuit, antipole testing circuit together, interconnect by circuit between them, also be provided with three interfaces on the instruction user plate, link to each other with loud speaker with program control automatic switch-board user port, telephone set respectively.It mainly is the accessory that belongs in the program control automatic command telephone device, because the production scene adverse circumstances, instruction user plate operate as normal is really accomplished reliable, stable and multi-functional selectivity fails to embody.
Summary of the invention
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, and provide a kind of rational in infrastructure, plate is amplified in the one-board instruction that technology is perfect, it can be supporting with the communication equipment that meets national standard, can constitute new conference terminal separately again, the multi-functional selectivity that it possesses and the stability of operation, reliability be improved significantly.
The technical solution adopted in the utility model is: a printed circuit board is provided with peripheral microprocessor, audio-frequency power amplifier, tone generator, busy tone and does not have tone detection circuit, picking/hanging machine detection circuit, constant-current source feed circuit, ring detecting circuit, communication device user port, telephone set port and broadcasting speaker port, power supply circuits; The utility model is characterized in that: also have additional audio frequency power amplifier processor, amplitude limiter circuit, audio frequency power amplifier protection and circuit protection circuit, power failure change-over circuit, the conversion of 2/4 line system and called mode selection circuit, microphone interface circuit, microphone interface and double-tone testing circuit frequently; Tone generator output is connected to amplitude limiter circuit; amplitude limiter circuit output is connected to audio-frequency power amplifier; the input of tone generator is connected with peripheral microprocessor; the output of constant-current source feed circuit is to the telephone set feed; and to telephone set dislodging machine testing; detection signal is connected to picking/hanging machine detection circuit; picking/hanging machine detection circuit output is connected to peripheral microprocessor; the output signal of communication device user port is connected to ring detecting circuit; ring detecting circuit output also is connected to peripheral microprocessor; the output signal of communication device user port also is connected to busy tone and no tone detection circuit; the output of busy tone and no tone detection circuit is connected to peripheral microprocessor equally; the double-tone input of testing circuit frequently connects communication device user port and telephone set port; and carry out double-tone at communication device user port and telephone set and detect frequently; double-tone testing circuit output frequently connects peripheral microprocessor; the output of audio-frequency power amplifier is connected to audio frequency power amplifier protection and circuit protection circuit; audio frequency power amplifier protection and circuit protection circuit and communication device user port; the broadcasting speaker port; the telephone set port; and power failure change-over circuit output; the output of constant-current source feed circuit; meanwhile; the output of audio frequency power amplifier processor connects and control audio power amplifier and audio frequency power amplifier protection and circuit protection circuit; the audio frequency power amplifier processor then connects control by peripheral microprocessor output; conversion of 2/4 line system and called model selection phone are by operator's toggle switch; its output is connected to peripheral microprocessor; the power failure change-over circuit connects control constant-current source feed circuit and connects the telephone set feed or connect communication device user port connection telephone set feed; microphone is connected with the microphone interface circuit, and the microphone interface circuit then is connected with amplitude limiter circuit and audio-frequency power amplifier.
In the technique scheme, described audio-frequency power amplifier adopts many zero potentials circuit.
Concrete grammar of the present utility model is as follows:
1, instruction is amplified plate power supply employing in the power supply of machine room standard traffic power supply, and peripheral microprocessor and peripheral circuit power supply provide by power circuit.
2, the plate operate as normal is amplified in instruction, and the telephone set feed is provided by constant-current source on the instruction amplification plate.Amplify plate owing to after the fault outage, telephone set is transformed into communication device user port feed in instruction, guarantee the operate as normal of communication by the power failure change-over circuit.
3, according to customer requirements, by conversion of 2/4 line system and called mode selection circuit, switching signal is delivered to peripheral microprocessor, determine mode of operation.
4, under the called pattern of 4 line systems, when the user is called out, can select earlier ringing telephone stations to be restarted broadcasting or directly started two kinds of modes of broadcasting.
5, when dislodging machine signal takes place, picking/hanging machine detection circuit is delivered to peripheral microprocessor with signal and is carried out respective handling.
6, when when having off hook signal to take place, peripheral microprocessor is according to the double-audio signal of double-tone testing circuit detection frequently, and judgement is that special function code or domestic consumer call out.
7, audio-frequency power amplifier startup and release are controlled by the audio power amplification processor.At audio-frequency power amplifier carry input terminal Finite Amplitude circuit, have protective circuit at the audio-frequency power amplifier output, improve the reliability of audio-frequency power amplifier work.Audio-frequency power amplifier starts provides signal tone by signal tone generation circuit, and voice are delivered to Live Audio by audio-frequency power amplifier output simultaneously.
8, when busy tone or tone-off are arranged on the circuit, busy tone and no tone detection circuit are delivered to peripheral microprocessor with signal and are carried out respective handling.
9, with the communication device user port interface with to on-the-spot telephone set port and Broadcast Port the anti-lightning strike protective circuit of over-voltage and over-current is being arranged all, guaranteeing instruction amplification plate reliability.
10, provide the microphone interface circuit, instruction is amplified plate and is realized conference terminal machine function separately.
The utility model compared with prior art has following characteristics:
Identical point: 1, all adopt microprocessor as the control centre unit.
2, the detection to signal possesses tone generator, picking/hanging machine detection circuit, constant current feed circuit, ring detecting circuit, busy tone equally and does not have tone detection circuit in the peripheral circuit.
3, the Peripheral Interface of printed board links to each other with communication device user port, telephone set and broadcasting.
Distinctive points: 1, amplify plate as a kind of instruction of communications device functions expansion, its supply power mode should be supporting with existing communication equipment, therefore adopts the power supply of communication standard power supply.Offer the peripheral circuit power supply by power supply circuits on the instruction amplification plate, peripheral circuit and audio-frequency power amplifier can guarantee system's operate as normal at the 24-60V supply district in the instruction amplification plate.
And instruction is amplified the plate operational environment at the communication equipment machine room, has improved stability and reliability that plate is amplified in instruction.
2, increased the audio-frequency power amplifier processor, the work of special disposal audio-frequency power amplifier and protection increase instruction and amplify the plate reliability.
3, audio-frequency power amplifier adopts many zero circuits, can reduce noise effectively and inhibition is uttered long and high-pitched sounds, and guarantees the stable of circuit; Constant-pressure type output is adopted in output, and the elimination load does not match and produces the hidden danger that burns out audio-frequency power amplifier; The level pressure output bias is controlled at≤and 1%.
4, amplify plate as instruction and possess the interface that links to each other with communication device user port, telephone set and broadcasting, except consider self the design reliability of products and stability, also must consider and miscellaneous equipment interface and signal when being transferred to broadcasting and telephone terminal the interference problem on the circuit (as line short, open circuit, overvoltage, overcurrent, lightning protection etc.) by circuit.And when going wrong, audio power amplifying circuit and output port are protected, could really accomplish to instruct and amplify the reliable and stable of plate.Amplify in the plate circuit in instruction, increased audio frequency power amplifier protection and circuit protection circuit; In audio power amplifying circuit, increased simultaneously anti-microwave interference circuit, to improve the antijamming capability that plate is amplified in instruction.
5, the firm and hard existing basic function of instruction amplification is that voice signal is outputed to noisy scene by audio power amplifying circuit, increases amplitude limiter circuit, reduces signal distortion, suppresses to utter long and high-pitched sounds, the protection audio power amplifying circuit.
6, amplify the plate function in order to promote instruction, increase double-tone testing circuit frequently, double-audio signal on the identification circuit realizes that telephone user starts the broadcasting in this post, or the alarm voice by solidifying in the remote activation signal tone generation circuit, will alarm voice broadcast service to on-the-spot.
7, conversion of 2/4 line system and called mode selection circuit are that the plate function expansion is amplified in instruction, under the situation that does not increase hardware circuit, realize the function maximization.2/4 line system change-over circuit is to consider under the different mode selection of voice signal transmission means.Called mode selection circuit is according to user's field demand, is the model selection that elder generation delivers to signal tone and voice to ringing telephone stations or direct startup audio power amplifying circuit broadcasting to the band broadcasting user.
8, the microphone interface circuit is when plate is amplified in instruction separately as the conference terminal machine, and when participating in a conference, user's speech is passed through microphone and delivered among the meeting group realization conference terminal function.
9, the power failure change-over circuit is to guarantee to amplify plate owing to after the fault outage, directly telephone set is linked into the user port of communication equipment in instruction, though lose the instruction enlarging function, guarantees the basic communication functions of call site machine.
In sum: amplify plate as a kind of instruction of communications device functions expansion and guaranteeing that the stability of a system and reliability are simultaneously; as machine room standard traffic power supply power supply, special audio power amplification processor, increase audio frequency power amplifier protection and circuit protection circuit, amplitude limiter circuit, power failure change-over circuit; also take into full account the maximization that function realizes; as increase double-tone testing circuit, the conversion of 2/4 line system and called mode selection circuit, microphone interface circuit frequently, expanding for the function of user communication device provides a best choice.
The beneficial effects of the utility model: 1. the concentrated machine room power supply of plate is amplified in instruction, has improved the stability of product.2. on-the-spot post terminal constitutes simple, is made of telephone and broadcasting, and is easy to maintenance.3. perfect input and output protection has guaranteed the reliability that plate is amplified in instruction.4. expanded communications device functions, increased instruction and amplify firm and hard existing point-to-point broadcast call functions.5. possesses the specific function code.6. realize telephone remote control.7. it can work alone, and constitutes novel conference terminal equipment.8. for providing multiple function selecting in the actual use of user.
Description of drawings:
Fig. 1 is the utility model structured flowchart
Fig. 2 is a power failure conversion and control schematic diagram
Among the figure: 1, peripheral microprocessor, 2, the audio power amplification processor, 3, the audio-frequency power amplifier circuit, 4, amplitude limiter circuit, 5, the microphone interface circuit, 6, signal tone generation circuit, 7, picking/hanging machine detection circuit, 8, the constant-current source feed circuit.9, ring detecting circuit, 10, busy tone and do not have tone detection circuit, 11, double-tone testing circuit frequently; 12, conversion of 2/4 line system and called mode selection circuit; 13, power failure change-over circuit, 14, audio frequency power amplifier protection and circuit protection circuit, 15, instruction amplifies plate; 16, communication device user port; 17, broadcasting, 18, telephone set, 19, microphone; 20, power supply circuits, 21, data/address bus.
Embodiment:
Referring to Fig. 1, a printed circuit board is provided with peripheral microprocessor 1, audio-frequency power amplifier 3, tone generator 6, busy tone and does not have tone detection circuit 10, picking/hanging machine detection circuit 7, constant-current source feed circuit 8, ring detecting circuit 9, communication device user port one 6, telephone set port one 8 and broadcasting speaker port 17, power supply circuits 20; The utility model is characterized in that: also have additional audio frequency power amplifier processor 2, amplitude limiter circuit 4, audio frequency power amplifier protection and circuit protection circuit 14, the conversion of power failure change-over circuit 13,2/4 line system and called mode selection circuit 12, microphone interface circuit 5, microphone interface and double-tone testing circuit 11 frequently; Tone generator output is connected to amplitude limiter circuit 4; amplitude limiter circuit output is connected to audio-frequency power amplifier; the input of tone generator is connected with peripheral microprocessor; the output of constant-current source feed circuit is to the telephone set feed; and to telephone set dislodging machine testing; detection signal is connected to picking/hanging machine detection circuit; picking/hanging machine detection circuit output is connected to peripheral microprocessor; the output signal of communication device user port is connected to ring detecting circuit; ring detecting circuit output also is connected to peripheral microprocessor; the output signal of communication device user port also is connected to busy tone and no tone detection circuit; the output of busy tone and no tone detection circuit is connected to peripheral microprocessor equally; the double-tone input of testing circuit frequently connects communication device user port and telephone set port; and carry out double-tone at communication device user port and telephone set and detect frequently; double-tone testing circuit output frequently connects peripheral microprocessor; the output of audio-frequency power amplifier is connected to audio frequency power amplifier protection and circuit protection circuit; audio frequency power amplifier protection and circuit protection circuit and communication device user port; the broadcasting speaker port; the telephone set port; and power failure change-over circuit output; the output of constant-current source feed circuit; meanwhile; the output of audio frequency power amplifier processor connects and control audio power amplifier and audio frequency power amplifier protection and circuit protection circuit; the audio frequency power amplifier processor then connects control by peripheral microprocessor output; conversion of 2/4 line system and called model selection phone are by operator's toggle switch; its output is connected to peripheral microprocessor; the power failure change-over circuit connects control constant-current source feed circuit and connects the telephone set feed or connect the feed of communication device user port to telephone set; microphone is connected with the microphone interface circuit, and the microphone interface circuit then is connected with amplitude limiter circuit and audio-frequency power amplifier.
When called: instruction is amplified plate 15 and is linked to each other with communication device user port one 6; by power supply circuits 20; ring detecting circuit 9 detects the ringing signal of user port; delivering to peripheral microprocessor 1 handles; model selection according to conversion of 2/4 line system and called mode selection circuit 12; the result is delivered to audio power amplification processor 2; start audio power amplifying circuit 3; the circuit of enabling signal sound generation simultaneously 6; signal tone and voice are by amplitude limiter circuit 4; audio frequency power amplifier protection and circuit protection circuit 14; power failure change-over circuit 13 is delivered to Live Audio 17 by the circuit transmission, realizes delivering to Live Audio after the caller voice are through amplification.
During caller: telephone set 18 off-hooks, by double-audio signal on audio frequency power amplifier protection and circuit protection circuit 14, power failure change-over circuit 13, constant-current source feed circuit 8, double-tone frequency testing circuit 11 detection lines, deliver to peripheral microprocessor 1 and handle, the internal user number is then called out other internal user in this way; Special code then starts audio power amplifying circuit 3, signal tone generation circuit 6 by audio power amplification processor 2 in this way; finish self-starting function, signal tone and voice are delivered to Live Audio 17 by amplitude limiter circuit 4, audio frequency power amplifier protection and circuit protection circuit 14, power failure change-over circuit 13 by the circuit transmission.Constantly detect audio frequency power amplifier and protective circuit 14 at communication process sound intermediate frequency power amplification processor 2, play the reduction noise, suppress to utter long and high-pitched sounds, adjust the amplifying circuit parameter, guarantee the clear voice of transmission in the circuit, protect audio power amplifying circuit 3 operate as normal simultaneously.
In caller or called communication process, but double-tone double-audio signal on testing circuit 11 detection lines frequently deliver to peripheral microprocessor 1 and handle, special code can also start the voice signal that is pre-stored in signal tone generation circuit 6 in this way, realizes remote control function.
When doing conference terminal: instruction amplification plate 15 links to each other with communication device user port one 6, microphone 19 links to each other with microphone interface circuit 5; the microphone voice are by microphone interface circuit 5, amplitude limiter circuit 4, audio power amplifying circuit 3, audio frequency power amplifier protection and circuit protection circuit 14; deliver to broadcasting 17 and conference users respectively, realize meeting speech function and listen to conferencing function.Constantly detect audio frequency power amplifier protection and circuit protection circuit 14 at communication process sound intermediate frequency power amplification processor 2, play the reduction noise, suppress to utter long and high-pitched sounds, guarantee the clear voice of transmission in the circuit, protect audio power amplifying circuit 3 operate as normal simultaneously.
When power supply circuits 20 break down; telephone set 18 directly links to each other with communication device user port one 6 with circuit protection circuit 14, power failure change-over circuit 13 by the audio frequency power amplifier protection; after guaranteeing that instruction amplification plate 15 is owing to the fault outage, call site machine 18 communication operate as normal.
Referring to Fig. 2, at power failure change-over circuit 13 circuit description:
Amplify under plate 15 normal operation in instruction, by power failure change-over circuit 13, audio frequency power amplifier protective circuit and circuit protection circuit 14,18 power supplies of 8 pairs of telephone sets of constant-current source current feed circuit; Amplifying plate 15 power supplies when instruction has not had, and power failure change-over circuit 13 is directly received communication device user port one 6 with telephone set 18 by audio frequency power amplifier protective circuit and circuit protection circuit 14, guarantees call site communication operate as normal.
Claims (2)
1. plate is amplified in an one-board instruction, and a printed circuit board is provided with peripheral microprocessor, audio-frequency power amplifier, tone generator, busy tone and does not have tone detection circuit, picking/hanging machine detection circuit, constant-current source feed circuit, ring detecting circuit, communication device user port, telephone set port and broadcasting speaker port, power supply circuits; The utility model is characterized in that: also have additional audio frequency power amplifier processor, amplitude limiter circuit, audio frequency power amplifier protection and circuit protection circuit, power failure change-over circuit, the conversion of 2/4 line system and called mode selection circuit, microphone interface circuit, microphone interface and double-tone testing circuit frequently; Tone generator output is connected to amplitude limiter circuit; amplitude limiter circuit output is connected to audio-frequency power amplifier; the input of tone generator is connected with peripheral microprocessor; the output of constant-current source feed circuit is to the telephone set feed; and to telephone set dislodging machine testing; detection signal is connected to picking/hanging machine detection circuit; picking/hanging machine detection circuit output is connected to peripheral microprocessor; the output signal of communication device user port is connected to ring detecting circuit; ring detecting circuit output also is connected to peripheral microprocessor; the output signal of communication device user port also is connected to busy tone and no tone detection circuit; the output of busy tone and no tone detection circuit is connected to peripheral microprocessor equally; the double-tone input of testing circuit frequently connects communication device user port and telephone set port; and carry out double-tone at communication device user port and telephone set and detect frequently; double-tone testing circuit output frequently connects peripheral microprocessor; the output of audio-frequency power amplifier is connected to audio frequency power amplifier protection and circuit protection circuit; audio frequency power amplifier protection and circuit protection circuit and communication device user port; the broadcasting speaker port; the telephone set port; and power failure change-over circuit output; the output of constant-current source feed circuit; meanwhile; the output of audio frequency power amplifier processor connects and control audio power amplifier and audio frequency power amplifier protection and circuit protection circuit; the audio frequency power amplifier processor then connects control by peripheral microprocessor output; conversion of 2/4 line system and called model selection phone are by operator's toggle switch; its output is connected to peripheral microprocessor; power failure change-over circuit control constant-current source feed circuit connects the telephone set feed or connects communication device user port connection telephone set feed; microphone is connected with the microphone interface circuit, and the microphone interface circuit then is connected with amplitude limiter circuit and audio-frequency power amplifier.
2. plate is amplified in one-board instruction according to claim 1, and it is characterized in that: described audio-frequency power amplifier adopts many zero potentials circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205662299U CN201830334U (en) | 2010-10-19 | 2010-10-19 | Single-plate type instruction amplification plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205662299U CN201830334U (en) | 2010-10-19 | 2010-10-19 | Single-plate type instruction amplification plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201830334U true CN201830334U (en) | 2011-05-11 |
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ID=43968847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205662299U Expired - Lifetime CN201830334U (en) | 2010-10-19 | 2010-10-19 | Single-plate type instruction amplification plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201830334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457621A (en) * | 2010-10-19 | 2012-05-16 | 长沙常有通信设备有限公司 | Single-board type command amplification board |
-
2010
- 2010-10-19 CN CN2010205662299U patent/CN201830334U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457621A (en) * | 2010-10-19 | 2012-05-16 | 长沙常有通信设备有限公司 | Single-board type command amplification board |
| CN102457621B (en) * | 2010-10-19 | 2014-07-09 | 湖南恒一通信设备有限公司 | Single-board type command amplification board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110511 Effective date of abandoning: 20140709 |
|
| RGAV | Abandon patent right to avoid regrant |