CN108631883A - A kind of electric adjustable attenuation control circuit of photoreceiver - Google Patents
A kind of electric adjustable attenuation control circuit of photoreceiver Download PDFInfo
- Publication number
- CN108631883A CN108631883A CN201810795016.4A CN201810795016A CN108631883A CN 108631883 A CN108631883 A CN 108631883A CN 201810795016 A CN201810795016 A CN 201810795016A CN 108631883 A CN108631883 A CN 108631883A
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- microcontrollers
- attenuation
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- 230000005611 electricity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000001429 stepping effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
- H04B10/671—Optical arrangements in the receiver for controlling the input optical signal
- H04B10/672—Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal
- H04B10/674—Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal using a variable optical attenuator
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
The invention discloses a kind of electric adjustable attenuation control circuits of photoreceiver, including：Button, A microcontrollers, rf attenuation chip, B microcontrollers and charactron, the button are electrically connected with A microcontrollers, and the A microcontrollers are electrically connected with rf attenuation chip and B microcontrollers respectively, and the B microcontrollers are electrically connected with charactron；The button includes Up keys, down key and Ok keys, rear three I/O interfaces of the A microcontrollers respectively with Up keys, down key and the one-to-one connection of Ok keys, respectively with the LE interfaces of rf data chip, Data interfaces, the one-to-one connection of Clock interfaces, the PGM interfaces of the A microcontrollers connect first three I/O interface of the A microcontrollers with the SCK interfaces of B microcontrollers.By the above-mentioned means, attenuation can be arranged in the present invention by the button of the machine, easy to operate, the precision of attenuation is high, and performance is stablized, and brings great convenience for debugging or operation maintenance personnel.
Description
Technical field
The present invention relates to photoreceiver technical fields, more particularly to a kind of electric adjustable adjustable attenuation electricity of photoreceiver
Road.
Background technology
The traditional setting attenuation mode of photoreceiver mainly uses following two ways：（1）Adjustable attenuator setting declines
Decrement,（2）Attenuation is arranged in fixed attenuation inserted sheet.Wherein the shortcomings that adjustable attenuator setting attenuation be adjustable attenuator with
The variation in season（The variation of temperature）Attenuation can also change, and need mode or operation maintenance personnel to be reached in seasonal variations existing
Field re-starts adjustment, otherwise may lead to the deterioration of network performance index；Fixed attenuation inserted sheet be arranged attenuation the shortcomings that be
Need the good various fixed attenuator models of band that can not just carry out mode just in case lacking the attenuator model of needs or use connects
Close attenuator model causes network performance index to generate difference with design.
Invention content
The invention mainly solves the technical problem of providing a kind of electric adjustable attenuation control circuits of photoreceiver, can solve
The certainly drawbacks described above present in photoreceiver conventional droop amount set-up mode.
In order to solve the above technical problems, one aspect of the present invention is：A kind of electricity tune of photoreceiver is provided
Formula attenuation control circuit, the photoreceiver ontology are equipped with button and charactron, and the electric adjustable attenuation control circuit includes：
Button, A microcontrollers, rf attenuation chip, B microcontrollers and charactron, the button are electrically connected with the A microcontrollers, the A
Microcontroller is electrically connected with the rf attenuation chip and the B microcontrollers respectively, and the B microcontrollers and the charactron are electrical
Connection；The button includes Up keys, down key and Ok keys, rear three I/O interfaces of the A microcontrollers respectively with the Up keys,
Down key and the one-to-one connection of Ok keys, the LE of first three I/O interfaces of the A microcontrollers respectively with the rf data chip connect
Mouth, Data interfaces, the one-to-one connection of Clock interfaces, the PGM interfaces of the A microcontrollers and the SCK interfaces of the B microcontrollers connect
It connects.
In a preferred embodiment of the present invention, 3 feet of the A microcontrollers, 4 feet, 5 feet, 8 feet, 9 feet, 10 feet are I/O
11 feet of interface, the A microcontrollers are PGM interfaces.
In a preferred embodiment of the present invention, 11 feet of the B microcontrollers are SCK interfaces.
In a preferred embodiment of the present invention, 5 feet of the rf data chip are LE interfaces, the rf data core
3 feet of piece are Data interfaces, and 4 feet of rf data chip are Clock interfaces.
In a preferred embodiment of the present invention, the attenuation of the button is with 0.5dB or 1dB steppings.
In a preferred embodiment of the present invention, the attenuation of the rf attenuation chip is 0-30.5dB.
In a preferred embodiment of the present invention, the Up is keyed 8 feet of the A microcontrollers, the down key connection
9 feet of the A microcontrollers, the Ok are keyed 10 feet of the A microcontrollers, and 3 feet of the A microcontrollers connect the radio frequency number
According to 5 feet of chip, 4 feet of the A microcontrollers connect 3 feet of the rf attenuation chip, and 5 feet of the A microcontrollers connect institute
4 feet of rf attenuation chip are stated, 11 feet of the A microcontrollers connect 11 feet of the B microcontrollers.
In a preferred embodiment of the present invention, photoreceiver attenuation is carried out using the electric adjustable attenuation control circuit
Setting, includes the following steps：
（1）Photoreceiver opening of device, system electrification self-test, the current attenuation of numeral method；
（2）By operating Up keys or down key, the attenuation to be set is inputted to A microcontrollers, Ok keys is then pressed and is confirmed
Operation；
（3）A microcontrollers export enable signal, open the read-write mode of video attenuation chip register；
（4）A microcontrollers currently need the pad value set by 6 position datawires to the write-in of rf attenuation chip；
（5）After setting completed, A microcontrollers are re-set as the Enable Pin of rf attenuation chip to the pad value of rf attenuation chip
Low level, to prevent interference signal to rf attenuation chip maloperation；
（6）A microcontrollers export the show value of current attenuation amount to B microcontrollers, and charactron is lighted by B microcontrollers.
In a preferred embodiment of the present invention, the step（2）In, the Up keys are set and often press an attenuation reduction
0.5 dB or 1dB is arranged the down key and often increases 0.5 dB or 1dB by an attenuation.
The beneficial effects of the invention are as follows：The present invention is easy to operate, can be arranged by the button in photoreceiver the machine and be needed
Attenuation, the setting of attenuation is carried out using programmable rf attenuation chip, while intuitively can accurately be shown by charactron
The attenuation of current device essence, in addition the present invention have setting decaying accuracy of measurement high, the setting range of attenuation is wide, performance is steady
The advantages that determining brings great convenience for debugging or operation maintenance personnel.
Description of the drawings
Fig. 1 is a kind of schematic diagram of the electric adjustable attenuation control circuit of photoreceiver of the present invention.
Specific implementation mode
The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention includes：
A kind of electric adjustable attenuation control circuit of photoreceiver, the photoreceiver ontology are equipped with button and use for operation
In the charactron of display, the electric adjustable attenuation control circuit includes：Button, A microcontrollers, rf attenuation chip, B microcontrollers and
Charactron, the button are electrically connected with the A microcontrollers, to be set to A microcontrollers input by operation button
Attenuation, the A microcontrollers are electrically connected with the rf attenuation chip and the B microcontrollers respectively, and the A microcontrollers pass through
Pad value is written to the rf attenuation chip in 6 position datawires, while A microcontrollers export current attenuation amount to B microcontrollers, described
B microcontrollers are electrically connected with the charactron, and the B microcontrollers light charactron, and charactron can intuitively show current light-receiving
The attenuation of machine equipment setting.
Specifically, the button includes Up keys, down key and Ok keys, rear three I/O interfaces of the A microcontrollers respectively with
The Up keys, down key and the one-to-one connection of Ok keys, first three I/O interfaces of the A microcontrollers respectively with the rf data
The LE interfaces of chip, Data interfaces, the one-to-one connection of Clock interfaces, the PGM interfaces of the A microcontrollers and the B microcontrollers
SCK interfaces connect.
Wherein, 3 feet of the A microcontrollers, 4 feet, 5 feet, 8 feet, 9 feet, 10 feet are I/O interfaces, and the 11 of the A microcontrollers
Foot is PGM interfaces.11 feet of the B microcontrollers are SCK interfaces.5 feet of the rf data chip are LE interfaces, the radio frequency
3 feet of data chip are Data interfaces, and 4 feet of rf data chip are Clock interfaces.
With 0.5dB or 1dB steppings attenuation can be accurately arranged according to network design requirement in the attenuation of the button.
The attenuation of the rf attenuation chip is 0-30.5dB, and control range is wide.
In the present embodiment, the Up is keyed 8 foot I/O of the A microcontrollers（Input/output）Interface, the down key
Connect 9 foot I/O of the A microcontrollers（Input/output）Interface, the Ok are keyed 10 foot I/O of the A microcontrollers（Input/
Output）Interface, 3 foot I/O of the A microcontrollers（Input/output）Interface connects 5 foot LE of the rf data chip（It latches
Enabled input）Interface, 4 foot I/O of the A microcontrollers（Input/output）Interface connects 3 foot Data of the rf attenuation chip
（Serial interface data inputs）Interface, 5 foot I/O of the A microcontrollers（Input/output）Interface connects the rf attenuation chip
4 foot Clock（Serial interface clock inputs）Interface, 11 foot PGM of the A microcontrollers（Low-voltage ICSPTMProgramming is enabled）It connects
Mouth connects 11 foot SCK of the B microcontrollers（Data input clock line）Interface.
Further, in this embodiment the model of model PIC16F887, the B microcontroller of the A microcontrollers
74HC595。
Photoreceiver attenuation setting is carried out using the electric adjustable attenuation control circuit, is included the following steps：
（1）Photoreceiver opening of device, system electrification self-test, the current attenuation of numeral method；
（2）By operating Up keys or down key, the attenuation to be set is inputted to A microcontrollers, Ok keys is then pressed and is confirmed
Operation；
（3）A microcontrollers export enable signal, open the read-write mode of video attenuation chip register；
（4）A microcontrollers currently need the pad value set by 6 position datawires to the write-in of rf attenuation chip；
（5）After setting completed, A microcontrollers are re-set as the Enable Pin of rf attenuation chip to the pad value of rf attenuation chip
Low level, to prevent interference signal to rf attenuation chip maloperation；
（6）A microcontrollers export the show value of current attenuation amount to B microcontrollers, and charactron is lighted by B microcontrollers.
Wherein, the step（2）In, it the Up keys is set often presses attenuation and reduce 0.5 dB or 1dB, described in setting
Down key often presses an attenuation and increases 0.5 dB or 1dB.
Present invention is disclosed a kind of electric adjustable attenuation control circuits of photoreceiver, can be needed by the key-press input of the machine
Attenuation be configured, it is easy to operate, intuitively show attenuation, the precision that attenuation is arranged is high, the setting range of attenuation
Width, performance are stablized, and bring great convenience for debugging or operation maintenance personnel.
In the description of the present invention, it should be noted that the instructions such as term "upper", "lower", "left", "right", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, and those skilled in the art is come
It says, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any modification made by is equal
Replace, improve etc., it should all be included in the protection scope of the present invention.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of electric adjustable attenuation control circuit of photoreceiver, the photoreceiver ontology is equipped with button and charactron,
It is characterized in that, the electric adjustable attenuation control circuit includes：Button, A microcontrollers, rf attenuation chip, B microcontrollers and number
Pipe, the button and the A microcontrollers are electrically connected, the A microcontrollers respectively with the rf attenuation chip and the B monolithics
Machine is electrically connected, and the B microcontrollers are electrically connected with the charactron；The button includes Up keys, down key and Ok keys, described
Rear three I/O interfaces of A microcontrollers respectively with the Up keys, down key and the one-to-one connection of Ok keys, the A microcontrollers first three
For a I/O interfaces respectively with the LE interfaces of the rf data chip, Data interfaces, the one-to-one connection of Clock interfaces, the A is mono-
The PGM interfaces of piece machine are connect with the SCK interfaces of the B microcontrollers.
2. the electric adjustable attenuation control circuit of photoreceiver according to claim 1, which is characterized in that the A microcontrollers
3 feet, 4 feet, 5 feet, 8 feet, 9 feet, 10 feet be I/O interfaces, 11 feet of the A microcontrollers are PGM interfaces.
3. the electric adjustable attenuation control circuit of photoreceiver according to claim 1, which is characterized in that the B microcontrollers
11 feet be SCK interfaces.
4. the electric adjustable attenuation control circuit of photoreceiver according to claim 1, which is characterized in that the rf data
5 feet of chip are LE interfaces, and 3 feet of the rf data chip are Data interfaces, and 4 feet of rf data chip connect for Clock
Mouthful.
5. the electric adjustable attenuation control circuit of photoreceiver according to claim 1, which is characterized in that the button declines
Decrement is with 0.5dB or 1dB steppings.
6. the electric adjustable attenuation control circuit of photoreceiver according to claim 1, which is characterized in that the rf attenuation
The attenuation of chip is 0-30.5dB.
7. the electric adjustable attenuation control circuit of the photoreceiver according to one of claim 1-5, which is characterized in that the Up
8 feet of the A microcontrollers are keyed, the down key connects 9 feet of the A microcontrollers, and the Ok is keyed the A microcontrollers
10 feet, 3 feet of the A microcontrollers connect 5 feet of the rf data chip, and 4 feet of the A microcontrollers connect the radio frequency
3 feet of decaying chip, 5 feet of the A microcontrollers connect 4 feet of the rf attenuation chip, the 11 feet connection of the A microcontrollers
11 feet of the B microcontrollers.
8. the electric adjustable attenuation control circuit of photoreceiver according to claim 1, which is characterized in that adjusted using the electricity
Formula attenuation control circuit carries out photoreceiver attenuation setting, includes the following steps：
（1）Photoreceiver opening of device, system electrification self-test, the current attenuation of numeral method；
（2）By operating Up keys or down key, the attenuation to be set is inputted to A microcontrollers, Ok keys is then pressed and is confirmed
Operation；
（3）A microcontrollers export enable signal, open the read-write mode of video attenuation chip register；
（4）A microcontrollers currently need the pad value set by 6 position datawires to the write-in of rf attenuation chip；
（5）After setting completed, A microcontrollers are re-set as the Enable Pin of rf attenuation chip to the pad value of rf attenuation chip
Low level, to prevent interference signal to rf attenuation chip maloperation；
（6）A microcontrollers export the show value of current attenuation amount to B microcontrollers, and charactron is lighted by B microcontrollers.
9. the electric adjustable attenuation control circuit of photoreceiver according to claim 8, which is characterized in that the step（2）
In, the Up keys are set and often press attenuation reduction 0.5 dB or 1dB, the down key is set and is often increased by an attenuation
0.5 dB or 1dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810795016.4A CN108631883A (en) | 2018-07-19 | 2018-07-19 | A kind of electric adjustable attenuation control circuit of photoreceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810795016.4A CN108631883A (en) | 2018-07-19 | 2018-07-19 | A kind of electric adjustable attenuation control circuit of photoreceiver |
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| Publication Number | Publication Date |
|---|---|
| CN108631883A true CN108631883A (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810795016.4A Pending CN108631883A (en) | 2018-07-19 | 2018-07-19 | A kind of electric adjustable attenuation control circuit of photoreceiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951234A (en) * | 2019-03-07 | 2019-06-28 | 苏州市高事达信息科技股份有限公司 | A kind of electric adjustable channel number setting control circuit and its setting method |
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|---|---|---|---|---|
| US6600594B1 (en) * | 2002-02-21 | 2003-07-29 | Lightech Fiberoptics, Inc. | Intelligent variable optical attenuator with controller and attenuation calibration |
| CN101610403A (en) * | 2009-07-21 | 2009-12-23 | 陈苏南 | Remote monitoring and control type optical receiver |
| CN103440002A (en) * | 2013-09-06 | 2013-12-11 | 黑龙江大学 | Remote-operated one-chip microcomputer system for executing heating control |
| CN103744143A (en) * | 2013-12-25 | 2014-04-23 | 桂林市光隆光电科技有限公司 | Handheld optical attenuator |
| CN204516042U (en) * | 2015-04-22 | 2015-07-29 | 李松岭 | A kind of infrared laser Intelligent traffic light system |
| CN105356931A (en) * | 2015-12-14 | 2016-02-24 | 天津光电通信技术有限公司 | Broadband signal attenuation control equipment and control method |
| CN206413018U (en) * | 2016-08-31 | 2017-08-15 | 中国人民解放军63892部队 | A kind of multi-channel radio frequency signal attenuation device |
| CN208820787U (en) * | 2018-07-19 | 2019-05-03 | 苏州市高事达信息科技股份有限公司 | A kind of electric adjustable attenuation control circuit of photoreceiver |
-
2018
- 2018-07-19 CN CN201810795016.4A patent/CN108631883A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6600594B1 (en) * | 2002-02-21 | 2003-07-29 | Lightech Fiberoptics, Inc. | Intelligent variable optical attenuator with controller and attenuation calibration |
| CN101610403A (en) * | 2009-07-21 | 2009-12-23 | 陈苏南 | Remote monitoring and control type optical receiver |
| CN103440002A (en) * | 2013-09-06 | 2013-12-11 | 黑龙江大学 | Remote-operated one-chip microcomputer system for executing heating control |
| CN103744143A (en) * | 2013-12-25 | 2014-04-23 | 桂林市光隆光电科技有限公司 | Handheld optical attenuator |
| CN204516042U (en) * | 2015-04-22 | 2015-07-29 | 李松岭 | A kind of infrared laser Intelligent traffic light system |
| CN105356931A (en) * | 2015-12-14 | 2016-02-24 | 天津光电通信技术有限公司 | Broadband signal attenuation control equipment and control method |
| CN206413018U (en) * | 2016-08-31 | 2017-08-15 | 中国人民解放军63892部队 | A kind of multi-channel radio frequency signal attenuation device |
| CN208820787U (en) * | 2018-07-19 | 2019-05-03 | 苏州市高事达信息科技股份有限公司 | A kind of electric adjustable attenuation control circuit of photoreceiver |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951234A (en) * | 2019-03-07 | 2019-06-28 | 苏州市高事达信息科技股份有限公司 | A kind of electric adjustable channel number setting control circuit and its setting method |
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Application publication date: 20181009 |