CN109874201B - Two-wire illumination control system - Google Patents
Two-wire illumination control system Download PDFInfo
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- CN109874201B CN109874201B CN201910248549.5A CN201910248549A CN109874201B CN 109874201 B CN109874201 B CN 109874201B CN 201910248549 A CN201910248549 A CN 201910248549A CN 109874201 B CN109874201 B CN 109874201B
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- 238000005286 illumination Methods 0.000 title description 3
- 239000002131 composite material Substances 0.000 claims abstract description 61
- 230000001105 regulatory effect Effects 0.000 claims abstract description 38
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 238000004148 unit process Methods 0.000 claims abstract description 3
- 230000001276 controlling effect Effects 0.000 claims abstract 2
- 230000005669 field effect Effects 0.000 claims description 41
- 238000002955 isolation Methods 0.000 claims description 12
- 230000011664 signaling Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a two-wire lighting control system, which comprises an input power supply, an input signal, a voltage regulating module and at least one analysis module, wherein the voltage regulating module comprises a signal demand voltage unit, a load working voltage unit and a signal processing unit, the input power supply is converted into a signal demand voltage by the signal demand voltage unit or is converted into a load working voltage by the load working voltage unit, the signal processing unit processes the input signal to convert the input signal into an electric signal required by the work of a switching device, and the electric signal drives the switching device to select and output the load working voltage and/or the signal demand voltage to form a composite voltage to be output from a composite output end; the analysis module comprises a signal-to-electricity separation unit, and the signal-to-electricity separation unit analyzes the composite voltage to obtain the input signal for regulating and controlling the working mode of the load and obtain the load working voltage for providing electric energy for the load.
Description
Technical Field
The present invention relates to a lighting system, and more particularly, to a two-wire lighting control system.
Background
When the existing lighting circuit system is to control a plurality of LED lamps or a plurality of groups of LED lamps, a lighting control system is generally formed by adopting a power supply positive and negative power line and a signal line three-wire, and because the conventional building wiring is only provided with the power line and no signal line, the wiring is generally required to be re-conducted when the LED lamps or the lamp groups are added in old communities or markets, and the two-wire lighting control system is required to be provided because of high wiring cost and high labor cost.
Disclosure of Invention
The invention provides a two-wire lighting control system, which can realize the power supply and control of an LED lamp or a lamp group by using two wires, so that a ready-made circuit system can directly supply and control the LED lamp without adding a signal wire, and the system also solves the problems of transient power failure and subsequent signal delay of the control system caused by 0 output voltage when an input signal is in a low level.
The invention provides a two-wire illumination control system, which comprises an input power supply, an input signal, a voltage regulating module and at least one analysis module, wherein the input power supply is connected with the power supply input end of the voltage regulating module through a positive wire and a negative wire, the input signal is input from the signal input end of the voltage regulating module through a signal wire, a composite output end of the voltage regulating module is connected with the composite input end of the analysis module through a load and signal wire and a negative wire, the output end of the analysis module outputs a load working voltage and an input signal restored by the analysis module, the voltage regulating module comprises a signal requirement voltage unit, a load working voltage unit, a signal processing unit and a preset number of switching devices, the input power supply is converted into a signal requirement voltage by the signal requirement voltage unit or is converted into a load working voltage by the load working voltage unit, the signal processing unit processes the input signal to convert the input signal into an electric signal required by the switching device, the electric signal driving the switching device selects and outputs the load working voltage and/or the signal requirement voltage to form the composite voltage, the composite voltage is separated from the composite output end of the signal requirement voltage unit, the composite voltage is analyzed by the composite voltage is separated from the signal output unit, and the composite voltage is restored by the composite voltage after the composite voltage is analyzed by the composite voltage.
Preferably, the analyzing module further includes a decoding unit, and the decoding unit is configured to analyze the input signal and regulate a working mode of the load according to the input signal.
Preferably, the signal processing unit is connected with the output end of the signal demand voltage unit and the output end of the load working voltage unit through a switching device, and the output end of the load working voltage unit is also connected with the composite output end.
Preferably, the switching device is an N-channel field effect transistor, the signal processing unit is connected to the base electrode of the N-channel field effect transistor, the output end of the signal demand voltage unit is connected to the source electrode of the N-channel field effect transistor, the output end of the load operating voltage unit is connected to the drain electrode of the N-channel field effect transistor, when the signal processing unit outputs an electrical signal, the N-channel field effect transistor is in a conducting state, the composite output end of the voltage regulating module outputs a signal demand voltage, and when the signal processing unit does not output an electrical signal, the N-channel field effect transistor is in a switching-off state, and the composite output end of the voltage regulating module outputs a load operating voltage.
Preferably, one end of the output of the load working voltage unit is further connected with a reverse isolation unit, and the reverse isolation unit is used for preventing the signal demand voltage of the signal demand voltage unit from being output to the load working voltage unit.
Preferably, the signal processing unit is connected with the output end of the load working voltage unit and the output end of the signal demand voltage unit through the switching device, and the output end of the signal demand voltage unit is also connected with the composite output end.
Preferably, the switching device is a P-channel field effect transistor, the signal processing unit is connected with a gate of the P-channel field effect transistor, an output end of the load operating voltage unit is connected with a source of the P-channel field effect transistor, an output end of the signal demand voltage unit is connected with a drain of the P-channel field effect transistor, when the signal processing unit outputs an electric signal, the P-channel field effect transistor is in an off state, a composite output end of the voltage regulating module outputs a signal demand voltage, when the signal processing unit does not output an electric signal, the P-channel field effect transistor is in an on state, and a composite output end of the voltage regulating module outputs a load operating voltage.
Preferably, one end of the output of the signal demand voltage unit is further connected with a reverse isolation unit, and the reverse isolation unit is used for preventing the load working voltage of the load working voltage unit from being output to the signal demand voltage unit.
Preferably, the signal processing unit is connected with the output end of the load working voltage unit and the output end of the signal demand voltage unit through two switching devices respectively, and the output ends of the signal demand voltage unit and the load working voltage unit are also connected with the composite output end.
Preferably, one of the two switching devices is an N-channel field effect transistor, the other is a P-channel field effect transistor, the input signal is processed by the signal processing unit to generate two opposite electric signals, and the two switching devices are respectively controlled to be conducted at different times, so that the voltage regulating module outputs the composite voltage.
The two-wire lighting control system provided by the invention can realize the functions of lighting power supply and control by using only two wires through the voltage regulating module and the analyzing module, so that the wiring of a building is simplified, the cost is reduced, and the signal demand voltage unit of the voltage regulating module overcomes the problems of transient power failure and subsequent signal delay of the system caused by the signal level of 0, so that the two-wire lighting control system operates more stably.
Drawings
FIG. 1 is a logical block diagram of a two-wire lighting control system according to a first embodiment of the present invention;
FIG. 2 is a logic block diagram of a two-wire lighting control system according to a second embodiment of the present invention;
FIG. 3 is a logic block diagram of a two-wire lighting control system according to a third embodiment of the present invention;
FIG. 4 is a logic block diagram of a two-wire lighting control system according to a fourth embodiment of the present invention;
fig. 5 is a logic architecture diagram of a two-wire lighting control system according to a fifth embodiment of the present invention.
Detailed Description
The following describes a two-wire lighting control system provided by the present invention with reference to the accompanying drawings, and it should be noted that only one optimized technical solution is used to describe the technical solution and design principle of the present invention in detail.
Referring to fig. 1, 2, 3 and 4, the two-wire lighting control system provided by the present invention includes an input power source 1, an input signal 4, a voltage regulating module 2, and a plurality of analyzing modules 3 for transmitting power and signals and driving a plurality of loads 5 to work; the input power supply 1 is connected with the power supply input end of the voltage regulating module 2 through a positive electrode wire and a negative electrode wire, the input signal 4 is input from the signal input end of the voltage regulating module 2 through a signal wire, a composite output end of the voltage regulating module 2 is connected with the composite input end of the analysis module 3 through a load and signal wire and a negative electrode wire, and the output end of the analysis module is connected with the load 5.
Referring to fig. 1, in the two-wire lighting control system according to the first embodiment of the present invention, the voltage regulating module 2 includes a signal demand voltage unit 22, a load operating voltage unit 23, a signal processing unit 24 and a relay 251, and the input power source 1 outputs a signal demand voltage from the signal demand voltage unit 22 or outputs a load operating voltage from the load operating voltage unit 23; the signal processing unit 24 is connected with the output end of the signal demand voltage unit 22 or the output end of the load working voltage unit 23 through a relay 251, the signal processing unit 24 processes the input signal 4 to convert the input signal into an electric signal required by the operation of the relay 251, and the electric signal drives the relay 251 to selectively output the load working voltage and/or the signal demand voltage to form a composite voltage, and the composite voltage is output from the composite output end; the composite voltage is output to the analysis module 3, the analysis module 3 includes a signal-to-electricity separation unit 31, the signal-to-electricity separation unit 31 analyzes the composite voltage, and since the signal processing unit 24 does not change the width, frequency and other aspects of the input signal 4, the composite voltage is only required to be stabilized to obtain the load operating voltage during analysis, and the input signal is obtained, but only a voltage higher than the operating voltage is required to pass through, for example, the load operating voltage is 5V, and when the composite voltage is subjected to signal analysis and comparison, the composite voltage is only required to pass through, the input signal can be formed, the signal-to-electricity separation unit outputs the load operating voltage after stabilizing the composite voltage, and restores and outputs the input signal 4 after the composite voltage is subjected to signal analysis and comparison, so that the regulation and control of the operating mode of the load 5 are realized.
Referring to fig. 2, the second embodiment of the two-wire lighting control system provided by the present invention is different from the other embodiments in that the signal processing unit 24 is connected to an output end of the signal demand voltage unit 22 and an output end of the load operating voltage unit 23 through an N-channel field effect transistor 252, the output end of the load operating voltage unit 23 is further connected to a composite output end, wherein the signal processing unit 24 is connected to a gate of the N-channel field effect transistor 252, an output end of the signal demand voltage unit 22 is connected to a source of the N-channel field effect transistor 252, an output end of the load operating voltage unit 23 is connected to a drain of the N-channel field effect transistor 252, when the signal processing unit 24 outputs an electrical signal, the N-channel field effect transistor 252 is in a conducting state, the composite output end of the voltage regulating module 2 outputs a load operating voltage when the signal processing unit 25 does not output the electrical signal, and in addition, an isolation unit 26 is further connected to an output end of the load operating voltage unit 23, and the isolation unit 26 is adapted to the two-wire lighting control system to prevent the two-wire lighting control system from providing the two-wire lighting control system from the two-wire lighting control system.
Referring to fig. 3, the third embodiment of the two-wire lighting control system provided by the present invention is different from the other embodiments in that the signal processing unit 24 is connected to an output end of the load operating voltage unit 23 and an output end of the signal demand voltage unit 22 through a P-channel field effect transistor 253, and an output end of the signal demand voltage unit 22 is further connected to a composite output end, wherein the signal processing unit 24 is connected to a gate of the P-channel field effect transistor 253, an output end of the load operating voltage unit 23 is connected to a source of the P-channel field effect transistor 253, an output end of the signal demand voltage unit 22 is connected to a drain of the P-channel field effect transistor 253, when the signal processing unit 24 outputs an electrical signal, the P-channel field effect transistor is turned off, a composite output end of the voltage regulating module 2 outputs a signal demand voltage, and when the signal processing unit 24 does not output the electrical signal, the P-channel field effect transistor 253 is turned on, and a composite output end of the voltage regulating module 2 outputs a load operating voltage, and in addition, an output end of the signal demand voltage unit 22 is further connected to an isolation unit 26, and the isolation unit 26 is used to prevent the two-wire lighting control system from providing a signal demand voltage to the two-wire lighting control system from being applied to the two-wire lighting control system.
Referring to fig. 4, the fourth embodiment of the present invention provides a two-wire lighting control system, which is different from the other embodiments in that the signal processing unit 24 is connected to the output end of the load operating voltage unit and the output end of the signal demand voltage unit through two switching devices 254, and the output end of the signal demand voltage unit and the output end of the load operating voltage unit are also connected to the composite output end, where one of the two switching devices 254 is an N-channel field effect transistor, and the other is a P-channel field effect transistor, and the input signal is processed by the signal processing unit to generate two opposite electrical signals, so as to respectively control the two switching devices to be turned on at different times, so that the voltage regulating module outputs the composite voltage.
Referring to fig. 5, in the two-wire lighting control system according to the fifth embodiment of the present invention, when the voltage of the input power source 1 is the same as the working voltage required by the load 1, the voltage regulating module 2 does not need to set a load working voltage unit, the output end of the voltage regulating module outputs a composite voltage of the power source voltage and/or the signal demand voltage, the signal-to-electricity separation unit 31 analyzes the composite voltage, the signal-to-electricity separation unit 31 stabilizes the composite voltage and outputs the power source voltage, and the composite voltage is compared and then the input signal 4 is restored and outputted to realize the regulation of the working mode of the load 5.
The signal demand voltage unit 22 and the load operating voltage unit 23 in the voltage regulating module 2 may be implemented by a demand voltage and a load operating voltage, which are output by an input power supply after being regulated by a voltage regulator circuit and have different voltage values.
Further, referring to fig. 1, 2, 3, 4 and 5, in order to prevent the signal-required voltage from being unable to directly drive the load 5, the parsing module 3 further includes a decoding unit (not shown), which decodes the input signal and cooperates with a driving circuit to regulate the working mode of the load 5.
Further, the signal processing unit 24 is a microprocessor.
According to the two-wire lighting control system provided by the invention, the input signal 4 is processed by the signal processing unit 25 to obtain the electric signal to control the switching device to be turned on, even if the pulse cycle of the input signal has a smaller duty ratio, namely, the situation that the composite voltage does not have the 0 level due to the superposition output of the load working voltage and the signal required voltage is caused under the condition that the 0 level is more, the continuous power supply of the lighting control system is ensured, the short power failure of the lighting control system caused by the 0 level input signal is avoided, and the control delay caused by the short power failure is avoided.
The two-wire lighting control system provided by the invention has the advantages that the building wiring is simpler, the lighting control operation is more stable, and the system is a preferable system for realizing the lighting and control functions of markets and communities.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the invention, and the scope of the invention should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (10)
1. A two-wire lighting control system comprises an input power supply, an input signal, a voltage regulating module and at least one analysis module, and is characterized in that,
the input power supply is connected with the power supply input end of the voltage regulating module through a positive electrode wire and a negative electrode wire, the input signal is input from the signal input end of the voltage regulating module through a signal wire, a composite output end of the voltage regulating module is connected with the composite input end of the analysis module through a load and signal wire and the negative electrode wire, and the output end of the analysis module outputs a load working voltage and the input signal restored by the analysis module;
the voltage regulating module comprises a signal demand voltage unit, a load working voltage unit, a signal processing unit and a preset number of switching devices, wherein the input power supply is converted into a signal demand voltage by the signal demand voltage unit or is converted into a load working voltage by the load working voltage unit, the signal processing unit processes the input signal to convert the input signal into an electric signal required by the switching devices to work, and the electric signal drives the switching devices to select and output the load working voltage and/or the signal demand voltage so as to form a composite voltage to be output from the composite output end;
the analysis module comprises a signal-to-electricity separation unit, the signal-to-electricity separation unit analyzes the composite voltage, the signal-to-electricity separation unit stabilizes the composite voltage and then outputs a load working voltage, and the composite voltage is subjected to signal analysis and comparison and then is reduced to the input signal and output.
2. The two-wire lighting control system of claim 1, wherein the analyzing module further comprises a decoding unit for analyzing the input signal and controlling the load operation mode according to the input signal.
3. A two-wire lighting control system according to claim 1 or 2, wherein the signal processing unit is connected to the output terminal of the signal demand voltage unit and the output terminal of the load operating voltage unit through a switching device, and the output terminal of the load operating voltage unit is further connected to the composite output terminal.
4. The two-wire lighting control system according to claim 3, wherein the switching device is an N-channel field effect transistor, the signal processing unit is connected to a base electrode of the N-channel field effect transistor, an output end of the signal demand voltage unit is connected to a source electrode of the N-channel field effect transistor, an output end of the load operating voltage unit is connected to a drain electrode of the N-channel field effect transistor, when the signal processing unit outputs an electrical signal, the N-channel field effect transistor is in a conducting state, a composite output end of the voltage regulating module outputs a signal demand voltage, when the signal processing unit does not output an electrical signal, the N-channel field effect transistor is in a turn-off state, and a composite output end of the voltage regulating module outputs a load operating voltage.
5. The two-wire lighting control system of claim 4, wherein the output end of the load operating voltage unit is further connected to a reverse isolation unit, and the reverse isolation unit is configured to prevent the signal demand voltage of the signal demand voltage unit from being output to the load operating voltage unit.
6. A two-wire lighting control system according to claim 3, wherein the signal processing unit is connected to the output terminal of the load operating voltage unit and the output terminal of the signal demand voltage unit through a switching device, and the output terminal of the signal demand voltage unit is further connected to the composite output terminal.
7. The two-wire lighting control system according to claim 6, wherein the switching device is a P-channel field effect transistor, the signal processing unit is connected to a gate of the P-channel field effect transistor, an output end of the load operating voltage unit is connected to a source of the P-channel field effect transistor, an output end of the signal demand voltage unit is connected to a drain of the P-channel field effect transistor, when the signal processing unit outputs an electrical signal, the P-channel field effect transistor is in an off state, a composite output end of the voltage regulating module outputs a signal demand voltage, when the signal processing unit does not output an electrical signal, the P-channel field effect transistor is in an on state, and a composite output end of the voltage regulating module outputs a load operating voltage.
8. The two-wire lighting control system of claim 7, wherein the output end of the signal demand voltage unit is further connected to a reverse isolation unit, and the reverse isolation unit is used for preventing the load operating voltage of the load operating voltage unit from being output to the signal demand voltage unit.
9. A two-wire lighting control system according to claim 1 or 2, wherein the signal processing unit is connected to the output terminal of the load operating voltage unit and the output terminal of the signal demand voltage unit through two switching devices, respectively, and the output terminals of the signal demand voltage unit and the load operating voltage unit are also connected to the composite output terminal.
10. The two-wire lighting control system according to claim 9, wherein one of the two switching devices is an N-channel field effect transistor and the other is a P-channel field effect transistor, and the input signal is processed by the signal processing unit to generate two opposite electric signals, so as to respectively control the two switching devices to be conducted at different times, and the voltage regulating module outputs a composite voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910248549.5A CN109874201B (en) | 2019-03-29 | 2019-03-29 | Two-wire illumination control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910248549.5A CN109874201B (en) | 2019-03-29 | 2019-03-29 | Two-wire illumination control system |
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| CN109874201A CN109874201A (en) | 2019-06-11 |
| CN109874201B true CN109874201B (en) | 2024-03-26 |
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| CN117881041A (en) * | 2024-03-11 | 2024-04-12 | 广东柏科电源有限公司 | Dimming control method and dimming circuit |
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| CN202353868U (en) * | 2011-11-11 | 2012-07-25 | 金德奎 | Driving and controlling circuit for illumination of LED (light-emitting diode) |
| CN103260310A (en) * | 2013-05-14 | 2013-08-21 | 辉芒微电子（深圳）有限公司 | LED light-dimmer driving circuit |
| CN103369775A (en) * | 2012-04-03 | 2013-10-23 | 金德奎 | LED illumination control system and control method thereof |
| CN206640830U (en) * | 2017-02-17 | 2017-11-14 | 翰力斯有限公司 | A kind of control system of indoor power line transmission |
| CN210007955U (en) * | 2019-03-29 | 2020-01-31 | 广州腾龙健康实业股份有限公司 | two-wire lighting control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201320813A (en) * | 2011-11-15 | 2013-05-16 | Ind Tech Res Inst | Light source apparatus and driving apparatus thereof |
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|---|---|---|---|---|
| CN202353868U (en) * | 2011-11-11 | 2012-07-25 | 金德奎 | Driving and controlling circuit for illumination of LED (light-emitting diode) |
| CN103369775A (en) * | 2012-04-03 | 2013-10-23 | 金德奎 | LED illumination control system and control method thereof |
| CN103260310A (en) * | 2013-05-14 | 2013-08-21 | 辉芒微电子（深圳）有限公司 | LED light-dimmer driving circuit |
| CN206640830U (en) * | 2017-02-17 | 2017-11-14 | 翰力斯有限公司 | A kind of control system of indoor power line transmission |
| CN210007955U (en) * | 2019-03-29 | 2020-01-31 | 广州腾龙健康实业股份有限公司 | two-wire lighting control system |
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