CN205610978U - Sound and light control system of light based on linear drive circuit - Google Patents
Sound and light control system of light based on linear drive circuit Download PDFInfo
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- CN205610978U CN205610978U CN201620202324.8U CN201620202324U CN205610978U CN 205610978 U CN205610978 U CN 205610978U CN 201620202324 U CN201620202324 U CN 201620202324U CN 205610978 U CN205610978 U CN 205610978U
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Abstract
The utility model discloses a sound and light control system of light based on linear drive circuit, a serial communication port, including the singlechip, the luminance sensor who all is connected with the singlechip, linear drive circuit, power and fall the filtering and amplifying circuit that makes an uproar, the light that is connected with linear drive circuit to reach and fall the sound sensor that the filtering and amplifying circuit that makes an uproar is connected, linear drive circuit includes the current output circuit that drive and control circuit that the input is connected and input and drive and control circuit's output is connected with the singlechip, current output circuit's output is connected with the light. The utility model discloses a brightness signal that singlechip accessible luminance sensor gathered to and the sound sound signal of sound sensor collection is through falling the sound sound signal of the filtering and amplifying circuit that makes an uproar after carrying out filter amplifier, the opening or closing of control light that the singlechip can be accurate.
Description
Technical field
This utility model relates to technical field of electronic equipment, specifically refers to a kind of photograph based on linear drive circuit
The sound-light controlled system of bright lamp.
Background technology
In many local corridors, people can install illuminating lamp to improve the brightness of corridor, so that it is guaranteed that
People's safety by corridor.At present, people's many employings voice activated control is to the unlatching of corridor lighting or pass
Close and be controlled, but, the illuminating lamp that this control mode is controlled also can be opened when someone passes through by day,
Thus cause waste of energy, it is impossible to realize energy-conservation.
Utility model content
The purpose of this utility model is to overcome existing corridor lighting lamp control system can not realize energy-conservation lacking
Fall into, it is provided that the sound-light controlled system of a kind of illuminating lamp based on linear drive circuit.
The purpose of this utility model is achieved through the following technical solutions: a kind of illumination based on linear drive circuit
The sound-light controlled system of lamp, including single-chip microcomputer, the luminance sensor being all connected with single-chip microcomputer, Linear Driving
Circuit, power supply and noise reduction filtering amplifying circuit, the illuminating lamp being connected with linear drive circuit, and with fall
The sound transducer that filter amplification circuit of making an uproar is connected；Described linear drive circuit includes input and single-chip microcomputer
The driving control circuit being connected, the electric current being connected with the outfan of input with driving control circuit exports
Circuit；The outfan of described current output circuit is connected with illuminating lamp.
Described driving control circuit includes driving chip U, positive pole after resistance R11 with driving chip U's
VDD pin is connected, negative pole sequentially after resistance R12 and inductance L with the PWM pin of driving chip U
The polar capacitor C5 being connected, and N pole CS pin with driving chip U after resistance R13 is connected,
The positive pole of P pole and polar capacitor C5 is collectively forming the diode D5 composition of the input driving control circuit；
The SW pin of described driving chip U and FB pin and BD pin are as the outfan driving control circuit；
The GND pin ground connection of described driving chip U.
Described current output circuit by audion VT2, audion VT3, P pole after resistance R14 with driving
The diode D6 that the SW pin of chip U is connected, N pole is connected with the colelctor electrode of audion VT2,
The polarity that negative pole is connected with the base stage of audion VT2, positive pole is connected with the FB pin of driving chip U
Electric capacity C6, negative pole colelctor electrode with audion VT3 after resistance R17 is connected, positive pole is through resistance R16
The polar capacitor C7 that colelctor electrode with audion VT2 is connected afterwards, the base stage phase of negative pole and audion VT3
The polar capacitor C8 that connection, positive pole are connected with the emitter stage of audion VT2, and P pole is through adjustable resistance
After R15, the BD pin with driving chip U is connected, N pole is connected with the emitter stage of audion VT3
Diode D7 forms；The negative pole of described polar capacitor C7 and the emitter stage of audion VT3 are collectively forming electric current
The outfan of output circuit.
Described noise reduction filtering amplifying circuit includes that the signal reception that input is connected with sound transducer processes electricity
Road, the filter and amplification output circuit being connected with the outfan of input with signal receiving processing circuit；Described
The outfan of filter and amplification output circuit is connected with single-chip microcomputer.
Described signal receiving processing circuit is connected with the electrode input end of amplifier P1 by amplifier P1, negative pole
Connect, positive pole as the polar capacitor C1 of the input of signal receiving processing circuit, one end is with amplifier P1's
Negative input is connected, resistance R1, the P pole of other end ground connection is connected with the electrode input end of amplifier P1
Connect, diode D1 that N pole outfan with amplifier P1 after resistance R4 is connected, and positive pole is sequentially
Be connected through resistance R3 electrode input end with amplifier P1 after resistance R2, negative pole is with amplifier P1's
Outfan is collectively forming the polar capacitor C3 composition of the outfan of signal receiving processing circuit.
Described filter and amplification output circuit is by amplifier P2, amplifier P3, audion VT1, negative pole and amplification
The polar capacitor C2 that the electrode input end of device P2 is connected, positive pole is connected with the outfan of amplifier P1,
Positive pole outfan with amplifier P1 after resistance R5 is connected, negative pole is sequentially through diode D3 and resistance
The output of polar capacitor C4, the P pole that after R6, negative input with amplifier P3 is connected and amplifier P2
The diode D2 that end is connected, N pole is connected with the electrode input end of amplifier P3, one end and polarity electricity
Hold resistance R7, the P pole that negative pole is connected, the other end is connected of C3 with the base stage of audion VT1 through electricity
Be connected with the negative pole of polar capacitor C3 after resistance R8, N pole after resistance R10 with the output of amplifier P3
The diode D4 that is connected of end, and one end is connected with the emitter stage of audion VT1, the other end and two poles
The resistance R9 composition that the N pole of pipe D4 is connected；The negative input ground connection of described amplifier P2；Described
The grounded collector of audion VT1, its emitter stage is connected with the electrode input end of amplifier P3；Described put
The outfan of big device P3 is as the outfan of filter and amplification output circuit.
For guaranteeing practical effect of the present utility model, described luminance sensor is that GB5-A1EL brightness passes
Sensor；Described sound transducer is HGSR04P sound transducer；Described driving chip U is ACT365
Integrated chip.
This utility model compared with the prior art, has the following advantages and beneficial effect:
(1) luminance signal of corridor can be acquired by luminance sensor of the present utility model, its sound sensor
The acoustical signal of corridor is then acquired by device, and single-chip microcomputer is by the luminance signal gathering luminance sensor
With the acoustical signal of sound transducer collection be analyzed process after control accurately corridor lighting unlatching or
Close.
(2) electric current that single-chip microcomputer exports can be adjusted by linear drive circuit of the present utility model, and this is linear
Drive circuit can transmit stable driving electric current for illuminating lamp, it is ensured that the job stability of illuminating lamp, thus
Improve the stability of control system of the present utility model.
(3) the signal receiving processing circuit in noise reduction filtering amplifying circuit of the present utility model can be to sound sensor
The acoustical signal of the corridor of device collection carries out anti-interference process, and the filtering in noise reduction filtering amplifying circuit simultaneously is put
Big output circuit is transferred to single-chip microcomputer after being filtered the acoustical signal after noise reduction process amplifying, so that it is guaranteed that
The accuracy of the acoustical signal that single-chip microcomputer receives.
(4) luminance sensor of the present utility model is GB5-A1EL luminance sensor, this luminance sensor
Stable performance, the scope gathering information is wide, can accurately be acquired the brightness in acquisition range.
(5) this utility model sound transducer is HGSR04P sound transducer, and this sound transducer has standard
The advantages such as really property is high, sensitivity is strong, thus it is ensured that the sound of sound control energy-saving illuminator of the present utility model
The accuracy of control.
Accompanying drawing explanation
Fig. 1 is overall structure block diagram of the present utility model.
Fig. 2 is the electrical block diagram of noise reduction filtering amplifying circuit of the present utility model.
Fig. 3 is the electrical block diagram of linear drive circuit of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in further detail, but enforcement of the present utility model
Mode is not limited to this.
Embodiment
As it is shown in figure 1, the controlled by sound and light system of a kind of illuminating lamp based on linear drive circuit of the present utility model
System, including single-chip microcomputer, the luminance sensor being all connected with single-chip microcomputer, linear drive circuit, power supply and fall
Make an uproar filter amplification circuit, the illuminating lamp being connected with linear drive circuit, and with noise reduction filtering amplifying circuit
The sound transducer being connected.Wherein, described noise reduction filtering amplifying circuit is as in figure 2 it is shown, it includes signal
Receiving processing circuit and filter and amplification output circuit.
For guaranteeing reliability service of the present utility model, described single-chip microcomputer the most preferentially have employed stable performance
The integrated chip of PT4107, the CS pin of the integrated chip of this PT4107 is connected with luminance sensor, and VIN manages
Foot is connected with power supply.Described power supply is 12V DC voltage, and this 12V DC voltage is that single-chip microcomputer is powered.
During operation, this sound transducer and luminance sensor are arranged in corridor, and sound transducer is used for gathering
Acoustical signal in corridor is also converted to the signal of telecommunication, this sound transducer the most preferentially have employed have accuracy high,
The HGSR04P sound transducer of the advantages such as sensitivity is strong realizes.This sound transducer is by the telecommunications after conversion
Number being transmitted by noise reduction filtering amplifying circuit, this signal of telecommunication is carried out anti-interference place by this noise reduction filtering amplifying circuit
Reason, is transferred to single-chip microcomputer after being filtered the signal of telecommunication after anti-interference process amplifying simultaneously, makes this practicality new
Type runs more stable.The GB5-A1EL that luminance sensor the most preferentially have employed stable performance, acquisition range is wide
Luminance sensor realizes, and this luminance sensor is for gathering the luminance signal in corridor and bright by gather
Degree signal is transferred to single-chip microcomputer.Single-chip microcomputer is then by controlling to shine to the sound signal of telecommunication received and luminance signal
Being turned on and off of bright lamp.It is then to export to illuminating lamp by linear drive circuit during single-chip microcomputer output electric current,
This linear drive circuit can export stable driving electric current, makes the brightness stability of illuminating lamp, does not haves flicker
Phenomenon.In order to preferably implement this utility model, in described single-chip microcomputer, prestore brightness value, this brightness
Value is preferentially set as 30cd, and this brightness value can be adjusted according to different demands.
Wherein, when someone passes through by day, single-chip microcomputer receives the acoustic current-meter letter that sound transducer is transmitted
Number time, and the luminance signal of the corridor of luminance sensor collection brightness value of obtaining after single-chip microcomputer analyzes and processes
During more than its brightness value prestored, illuminating lamp output electric current, i.e. illuminating lamp then will not will not be opened by single-chip microcomputer
Open；If, the brightness that the luminance signal of the corridor of luminance sensor collection obtains after single-chip microcomputer analyzes and processes
When value is less than its brightness value prestored, illuminating lamp output electric current, i.e. illuminating lamp are then unlocked by single-chip microcomputer.With
Time, luminance sensor stops gathering the luminance signal of corridor, and sound transducer then will not stop signals collecting.
When people's range by this illuminating lamp, and when sound transducer collects acoustical signal, i.e. single-chip microcomputer
When not receiving the acoustical signal of sound transducer transmission, this single-chip microcomputer just stops illuminating lamp being exported electric current,
Illuminating lamp is closed.In order to reach more preferable energy-saving effect, this illuminating lamp can use LED.
As in figure 2 it is shown, described noise reduction filtering amplifying circuit includes that signal receiving processing circuit and filter and amplification are defeated
Go out circuit；Described signal receiving processing circuit is by amplifier P1, resistance R1, resistance R2, resistance R3, electricity
Resistance R4, polar capacitor C1, polar capacitor C3, and diode D1 composition.
During connection, the negative pole of polar capacitor C1 is connected with the electrode input end of amplifier P1, positive pole conduct
The input of signal receiving processing circuit is also connected with sound transducer.One end of resistance R1 and amplifier
The negative input of P1 is connected, other end ground connection.The P pole of diode D1 is defeated with the positive pole of amplifier P1
Enter that end is connected, N pole outfan with amplifier P1 after resistance R4 is connected.Polar capacitor C3 is just
Pole is sequentially connected through resistance R3 electrode input end with amplifier P1 after resistance R2, negative pole and amplifier
The outfan of P1 is collectively forming the outfan of signal receiving processing circuit and is connected with filter and amplification output circuit
Connect.
Further, described filter and amplification output circuit by amplifier P2, amplifier P3, audion VT1,
Resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, polar capacitor C2, pole
Property electric capacity C4, diode D2, diode D3, and diode D4 composition.
During connection, the negative pole of polar capacitor C2 is connected with the electrode input end of amplifier P2, positive pole with put
The outfan of big device P1 is connected.The negative pole of polar capacitor C4 is connected with the P pole of diode D3,
The N pole of described diode D3 negative input with amplifier P3 after resistance R6 is connected, described pole
The positive pole of property electric capacity C4 then after resistance R5 outfan with amplifier P1 be connected.The P of diode D2
Pole is connected with the outfan of amplifier P2, N pole is connected with the electrode input end of amplifier P3.
Wherein, one end of resistance R7 be connected with the negative pole of polar capacitor C3, the other end and audion VT1
Base stage be connected.The P pole of diode D4 negative pole with polar capacitor C3 after resistance R8 is connected, N
Pole outfan with amplifier P3 after resistance R10 is connected.One end of resistance R9 is with audion VT1's
Emitter stage is connected, the other end is connected with the N pole of diode D4.
The negative input ground connection of described amplifier P2；The grounded collector of described audion VT1, it is launched
Pole is connected with the electrode input end of amplifier P3；The outfan of described amplifier P3 is defeated as filter and amplification
The GATE pin of the outfan chip integrated with PT4107 that go out circuit is connected.
During operation, the signal receiving processing circuit in noise reduction filtering amplifying circuit passes through polar capacitor C1, polarity
Sound transducer collected sound signal is carried out anti-interference process by electric capacity C3, and after this anti-interference process, signal then leads to
The noise reduction filtering crossing amplifier P2 and amplifier P3 and audion VT1 and polar capacitor C4 formation amplifies
Circuit is filtered amplifying, and is transferred to single-chip microcomputer by the outfan of amplifier P3, effectively ensure that list
The accuracy of the acoustical signal that sheet machine receives.
As it is shown on figure 3, described linear drive circuit includes driving control circuit and current output circuit；Described
Control circuit is driven to include driving chip U, resistance R11, resistance R12, resistance R13, inductance L, polarity
Electric capacity C5, and diode D5 composition.
During connection, the positive pole of polar capacitor C5 VDD pin with driving chip U after resistance R11 is connected
Connect, negative pole is sequentially connected through resistance R12 PWM pin with driving chip U after inductance L.Two poles
The N pole of pipe D5 CS pin with driving chip U after resistance R13 is connected, P pole and PT4107 collection
The GATE pin becoming chip is connected.
The OUT pin of the positive pole chip integrated with PT4107 of described polar capacitor C5 is connected；Described driving
The SW pin of chip U and FB pin and BD pin are as outfan and the electric current driving control circuit
Output circuit is connected；The GND pin ground connection of described driving chip U.
Further, described current output circuit, can by audion VT2, audion VT3, resistance R14
Adjust resistance R15, resistance R16, resistance R17, polar capacitor C6, polar capacitor C7, polar capacitor C8,
Diode D6, and diode D7 composition.
During connection, the P pole of diode D6 SW pin with driving chip U after resistance R14 is connected,
N pole is connected with the colelctor electrode of audion VT2.The negative pole of polar capacitor C6 and the base stage of audion VT2
Be connected, positive pole is connected with the FB pin of driving chip U.The negative pole of polar capacitor C7 is through resistance R17
Afterwards the colelctor electrode with audion VT3 be connected, positive pole after resistance R16 with the colelctor electrode phase of audion VT2
Connect.The negative pole of polar capacitor C8 is connected with the base stage of audion VT3, positive pole and audion VT2
Emitter stage is connected.The P pole of diode D7 after adjustable resistance R15 with the BD pin of driving chip U
Be connected, N pole is connected with the emitter stage of audion VT3.The negative pole of described polar capacitor C7 and three poles
The emitter stage of pipe VT3 is collectively forming the outfan of current output circuit and is connected with illuminating lamp.
During operation, when single-chip microcomputer exports stable electric current, electric current is transferred to driving chip U through resistance R11,
The resistance of this resistance R11 is 100 Europe, drives electric current to be transferred to illuminating lamp by the SW pin of driving chip U.
When single-chip microcomputer output HIGH current, electric current inputs, through driving chip U through the PWM pin of driving chip U
Exporting through FB pin after process, the electric current of output is transferred to audion VT2 after polar capacitor C6 filters,
Now, the base stage of audion VT2 turns on emitter stage with the base stage of emitter stage and audion VT3, electric current warp
There is provided stable driving electric current for illuminating lamp after polar capacitor C6 and polar capacitor C8 filtering, time illuminating lamp
Work keeps stable.In order to preferably implement this utility model, the described driving chip U the most preferentially property of have employed
Can realize by the stable integrated chip of ACT365.
As it has been described above, just can well implement this utility model.
Claims (8)
1. the sound-light controlled system of an illuminating lamp based on linear drive circuit, it is characterised in that include list
Sheet machine, the luminance sensor being all connected with single-chip microcomputer, linear drive circuit, power supply and noise reduction filtering amplify
Circuit, the illuminating lamp being connected with linear drive circuit, and the sound being connected with noise reduction filtering amplifying circuit
Sound sensor；Described linear drive circuit includes the driving control circuit that input is connected with single-chip microcomputer, and
The current output circuit that input is connected with the outfan driving control circuit；Described current output circuit
Outfan is connected with illuminating lamp；Described driving control circuit includes driving chip U, and positive pole is through resistance R11
Be connected with the VDD pin of driving chip U afterwards, negative pole sequentially after resistance R12 and inductance L with driving
The polar capacitor C5 that the PWM pin of chip U is connected, and N pole after resistance R13 with driving chip
The CS pin of U is connected, the positive pole of P pole and polar capacitor C5 is collectively forming the input driving control circuit
The diode D5 composition of end；The SW pin of described driving chip U and FB pin and BD pin conduct
Drive the outfan of control circuit；The GND pin ground connection of described driving chip U.
The sound-light controlled system of a kind of illuminating lamp based on linear drive circuit the most according to claim 1,
It is characterized in that: described current output circuit is by audion VT2, and audion VT3, P pole is through resistance R14
Be connected with the SW pin of driving chip U afterwards, two poles that N pole is connected with the colelctor electrode of audion VT2
Pipe D6, negative pole is connected with the base stage of audion VT2, positive pole is connected with the FB pin of driving chip U
Polar capacitor C6, negative pole colelctor electrode with audion VT3 after resistance R17 is connected, positive pole is through resistance
The polar capacitor C7 that after R16, colelctor electrode with audion VT2 is connected, the base of negative pole and audion VT3
The polar capacitor C8 that pole is connected, positive pole is connected with the emitter stage of audion VT2, and P pole is through adjustable
After resistance R15, the BD pin with driving chip U is connected, N pole is connected with the emitter stage of audion VT3
The diode D7 composition connect；The negative pole of described polar capacitor C7 is collectively forming with the emitter stage of audion VT3
The outfan of current output circuit.
The sound-light controlled system of a kind of illuminating lamp based on linear drive circuit the most according to claim 2,
It is characterized in that: described noise reduction filtering amplifying circuit includes that the signal that input is connected with sound transducer connects
Receipts process circuit, the filter and amplification being connected with the outfan of input with signal receiving processing circuit output electricity
Road；The outfan of described filter and amplification output circuit is connected with single-chip microcomputer.
The sound-light controlled system of a kind of illuminating lamp based on linear drive circuit the most according to claim 3,
It is characterized in that: described signal receiving processing circuit is inputted with the positive pole of amplifier P1 by amplifier P1, negative pole
End is connected, positive pole is as the polar capacitor C1 of the input of signal receiving processing circuit, one end and amplifier
The negative input of P1 is connected, resistance R1, the P pole of other end ground connection inputs with the positive pole of amplifier P1
The diode D1, Yi Jizheng that end is connected, N pole outfan with amplifier P1 after resistance R4 is connected
Pole is sequentially connected through resistance R3 electrode input end with amplifier P1 after resistance R2, negative pole and amplifier
The outfan of P1 is collectively forming the polar capacitor C3 composition of the outfan of signal receiving processing circuit.
The sound-light controlled system of a kind of illuminating lamp based on linear drive circuit the most according to claim 4,
It is characterized in that: described filter and amplification output circuit is by amplifier P2, amplifier P3, audion VT1, negative
The polarity that pole is connected with the electrode input end of amplifier P2, positive pole is connected with the outfan of amplifier P1
Electric capacity C2, positive pole outfan with amplifier P1 after resistance R5 is connected, negative pole is sequentially through diode
Polar capacitor C4, the P pole being connected with the negative input of amplifier P3 after D3 and resistance R6 and amplification
The diode D2 that the outfan of device P2 is connected, N pole is connected with the electrode input end of amplifier P3, one
The resistance R7 that end is connected with the negative pole of polar capacitor C3, the other end is connected with the base stage of audion VT1,
P pole negative pole with polar capacitor C3 after resistance R8 is connected, N pole after resistance R10 with amplifier P3
The diode D4 that is connected of outfan, and one end is connected with the emitter stage of audion VT1, the other end
The resistance R9 composition being connected with the N pole of diode D4；The negative input ground connection of described amplifier P2；
The grounded collector of described audion VT1, its emitter stage is connected with the electrode input end of amplifier P3；Institute
State the outfan outfan as filter and amplification output circuit of amplifier P3.
The sound-light controlled system of a kind of illuminating lamp based on linear drive circuit the most according to claim 5,
It is characterized in that: described luminance sensor is GB5-A1EL luminance sensor.
The sound-light controlled system of a kind of illuminating lamp based on linear drive circuit the most according to claim 6,
It is characterized in that: described sound transducer is HGSR04P sound transducer.
The sound-light controlled system of a kind of illuminating lamp based on linear drive circuit the most according to claim 7,
It is characterized in that: described driving chip U is the integrated chip of ACT365.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620202324.8U CN205610978U (en) | 2016-03-16 | 2016-03-16 | Sound and light control system of light based on linear drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620202324.8U CN205610978U (en) | 2016-03-16 | 2016-03-16 | Sound and light control system of light based on linear drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205610978U true CN205610978U (en) | 2016-09-28 |
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ID=56962304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620202324.8U Expired - Fee Related CN205610978U (en) | 2016-03-16 | 2016-03-16 | Sound and light control system of light based on linear drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205610978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535392A (en) * | 2016-10-30 | 2017-03-22 | 苏州市克拉思科文化传播有限公司 | LED lighting system for smart home |
-
2016
- 2016-03-16 CN CN201620202324.8U patent/CN205610978U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535392A (en) * | 2016-10-30 | 2017-03-22 | 苏州市克拉思科文化传播有限公司 | LED lighting system for smart home |
| CN106535392B (en) * | 2016-10-30 | 2018-12-07 | 扬州市枣源酒业有限公司 | A kind of smart home LED illumination System |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Huarong Inventor before: Zhong Li |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171011 Address after: 528415 Guangdong Province, Zhongshan City Xiaolan Town Lianfeng Lek goldfish mouth straight Street No. 1 first card Patentee after: ZHONGSHAN ZHENMEILI LIGHTING CO.,LTD. Address before: 611200 Chongzhou Sichuan Economic Development Zone Youth (College) Venture Park Patentee before: CHENGDU SHENCHUAN ENERGY SAVING ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 |