CN111970794A - Induction control method, device and system based on power grid - Google Patents
Induction control method, device and system based on power grid Download PDFInfo
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/345—Current stabilisation; Maintaining constant current
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- H—ELECTRICITY
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The application discloses an induction control method, device and system based on power grid implementation, wherein the method comprises the following steps: triggering a first single chip microcomputer to generate a signal source instruction based on a key combination in a switch control module, controlling the time of opening or closing a main control switch in the switch module, and generating a corresponding power grid waveform; based on the sampling circuit in the sampling and decoding module, the power grid waveform is rectified and sampled, and a pulse width signal equivalent to a key is decoded; and sending the pulse width signal to a preset power management module, and outputting a control current signal based on a power management chip in the power management module. By adopting the induction control method based on the power grid, the original whole line does not need to be changed, the construction and transformation cost is low, the fault rate is low, the control is stable, the network safety problem does not exist, the high power factor and the low harmonic distortion can be maintained in the induction control process, the utilization rate is improved, and the operation experience of a user is improved.
Description
Technical Field
The embodiment of the invention relates to the field of equipment or system control, in particular to an induction control method and device based on power grid realization, and further relates to an induction control system based on power grid realization.
Background
In recent years, with the rapid development of various types of lighting products, people have increasingly high control requirements on lighting equipment. In particular, the focus of research on how to simply retrofit existing facilities to implement control functions is within the skill of those in the art.
However, most of the control aiming at the lighting equipment in the market at present is realized in a wireless mode, the operation process is complicated, the requirement on the network stability is high, and the network safety problem also exists. Therefore, there is an urgent need for a simple and low-cost method and system for implementing the basic dimming and color adjustment and sensing control functions of the lighting device.
Disclosure of Invention
Therefore, the embodiment of the invention provides an induction control method based on a power grid, so as to solve the problems of complex function control mode and high cost of lighting equipment in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
in a first aspect, an embodiment of the present invention provides an induction control method implemented based on a power grid, including: triggering a first single chip microcomputer to generate a signal source instruction based on a key combination in a preset switch control module, and controlling the opening or closing time of a main control switch in the preset switch module through the signal source instruction so that a power grid generates a corresponding power grid waveform; based on a sampling circuit in a preset sampling decoding module, rectifying and sampling the power grid waveform, memorizing and storing the coding of the identification brightness or color temperature and the times of missing phase waveform obtained by the sampling circuit through a second singlechip in the sampling decoding module, and decoding a pulse width signal equivalent to a key; and sending the pulse width signal to a preset power management module, and outputting a control current signal based on a power management chip in the power management module.
Further, the induction control method implemented based on the power grid further includes: the key combination comprises at least one of a second switch key, a third switch key, a fourth switch key and a fifth switch key; and respectively defining attribute codes of the second switch key, the third switch key, the fourth switch key and the fifth switch key according to preset functional requirements, and identifying and storing the coded attribute information through the first single chip microcomputer.
Further, respectively defining attribute codes of the second switch key, the third switch key, the fourth switch key and the fifth switch key according to preset function requirements, including: and randomly selecting two switch keys from the second switch key, the third switch key, the fourth switch key and the fifth switch key to define dimming, and defining the rest two switch keys as color-temperature-adjusting.
Furthermore, the power management module comprises a power rectification module, a filtering module, an energy conversion module, a constant current sampling module, a CCT chip for managing the color temperature of the LED and a power management chip, wherein a protection circuit and an identification circuit for identifying pulse width signals are integrated in the power management chip; and the power supply management chip is used for controlling the sampling voltage of the sixth resistor end for changing the sampling current to perform negative feedback so as to reduce the set output current.
Further, triggering the first single chip microcomputer to generate a signal source instruction based on a key combination in the preset switch control module includes: and executing signals of the switching times and the time sequence of different KEY combinations by the switch control module through different KEY KEY combinations, sending the signals to the switch control pin of the first single chip microcomputer, and triggering the first single chip microcomputer to generate a signal source instruction.
Further, the sampling circuit includes a third resistor and a fourth resistor.
In a second aspect, an embodiment of the present invention further provides an induction control device implemented based on a power grid, including: the waveform signal generating unit is used for triggering the first single chip microcomputer to generate a signal source instruction based on a key combination in a preset switch control module, and controlling the opening or closing time of a main control switch in the preset switch module through the signal source instruction so that a power grid generates a corresponding power grid waveform; the pulse width signal production unit is used for carrying out rectification sampling on the power grid waveform based on a sampling circuit in a preset sampling decoding module, memorizing and storing the coding of the identification brightness or color temperature and the times of missing phase waveforms obtained by the sampling circuit through a second singlechip in the sampling decoding module, and decoding a pulse width signal equivalent to a key; and the current control unit is used for sending the pulse width signal to a preset power management module and outputting a control current signal based on a power management chip in the power management module.
In a third aspect, an embodiment of the present invention further provides an induction control system implemented based on a power grid, including: the system comprises a switch control module, a switch module, a sampling and decoding module and a power management module, wherein the switch control module is used for generating different signal source instructions to control a switch, the switch module is used for receiving the signal source instructions to control and switching a main control switch of a power grid, the sampling and decoding module is used for carrying out rectification sampling on the waveform of the power grid and decoding pulse width signals equivalent to keys, and the power management module is used for identifying the pulse width signals and converting a power circuit to control lighting equipment; the switch control module, the switch module and the sampling decoding module are connected with the power management module.
Further, the key combination comprises a second switch key, a third switch key, a fourth switch key, a fifth switch key and a first single chip microcomputer; the second switch key, the third switch key, the fourth switch key and the fifth switch key are respectively connected with different pins of the first single chip microcomputer.
Furthermore, the power management module comprises a power rectification module, a filtering module, an energy conversion module, a constant current sampling module, a CCT chip for managing the color temperature of the LED and a power management chip; the CCT chip is connected with the second singlechip; and a protection circuit and an identification circuit for identifying the pulse width signal are integrated in the power management chip.
Furthermore, a sampling circuit and a second singlechip are arranged in the sampling decoding module; the sampling circuit is connected with the second single chip microcomputer, and the second single chip microcomputer is connected with the power management chip; the sampling circuit includes a third resistor and a fourth resistor.
By adopting the induction control method based on the power grid, the original whole line does not need to be changed, the construction and transformation cost is low, the fault rate is low, the control is stable, the network safety problem does not exist, the high power factor and the low harmonic distortion can be maintained in the induction control process, the utilization rate is improved, and the operation experience of a user is improved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a flowchart of an induction control method implemented based on a power grid according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an induction control device implemented based on a power grid according to an embodiment of the present invention;
fig. 3 is a structural diagram of an induction control system implemented based on a power grid according to an embodiment of the present invention.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes an embodiment of an induction control method implemented based on a power grid according to the present invention in detail. As shown in fig. 1 and 3, which are a flow chart of an induction control method implemented based on a power grid and a structure chart of a system provided in an embodiment of the present invention, respectively, a specific implementation process includes the following parts:
step S101: triggering a first single chip microcomputer to generate a signal source instruction based on a key combination in a preset switch control module, and controlling the time of turning on or turning off a main control switch in the preset switch module through the signal source instruction so that a power grid generates a corresponding power grid waveform.
In the embodiment of the invention, signals of the switching times and the time sequence of different KEY combinations are executed by different KEY combinations of the switch control module a1 and are sent to the switch control pin of the first single chip microcomputer (MCU1), and the first single chip microcomputer is triggered to generate a signal source instruction. The key combination includes at least one of the second switch key S2, the third switch key S3, the fourth switch key S4, and the fifth switch key S5. It should be noted that, the present application is not limited to the number and types of the switches listed above, and the switches can be set according to actual functional requirements, and are not described in detail herein.
In a specific implementation process, attribute codes of the second switch key S2, the third switch key S3, the fourth switch key S4 and the fifth switch key S5 may be respectively defined according to preset function requirements, and the coded attribute information is identified and stored by the first single chip microcomputer. For example, any two selected from the second switch button S2, the third switch button S3, the fourth switch button S4 and the fifth switch button S5 are defined as dimming, and the remaining two selected switch buttons are defined as color temperature adjustment, so as to control the dimming and color temperature adjustment functions of the lighting device.
Specifically, the attributes of the switch keys S2-S5 are defined, wherein any two keys are defined as dimming and color-adjusting temperature respectively, and the attributes are identified and stored by the first single chip microcomputer. For example, the second switch key S2 and the third switch key S3 are defined as dimming, and the fourth switch key S4 and the fifth switch key S5 are defined as color-changing temperature. The dimming is explained in 10 steps and the color temperature is explained in 3 steps. Assuming that the initial value of the variable of the first singlechip is 1, pressing the second switch key S2 once, the first singlechip stores the numerical value accumulated 1 and changes into 2, and sends a corresponding trigger signal, after sending an instruction, the main control switch Q2 is linked to chop the power grid waveform to form a power grid waveform signal with a phase defect, the waveform is full-wave rectified by the third resistor R3 and the fourth resistor R4 and sampled to the functional pin of the second singlechip (MCU2), the second singlechip identifies the sampled signal, calculates the number of times of the initial missing phase waveform as 2, and simultaneously analyzes the pulse width signal D1 corresponding to the brightness requirement, and the pulse width signal D1 is sent to the power management chip to match the rated output current I1 to obtain the desired brightness B1.
Similarly, the second switch button S2 is pressed twice, the first single chip microcomputer stores the accumulated value of 2 to 4, generates 4 missing phase waveform signals, and the second single chip microcomputer outputs the corresponding pulse width signal D2 to match the output current I2 after receiving the 4 missing phase waveform signals, thereby obtaining the desired brightness B2. And by analogy, the first single chip microcomputer sets the keys to be invalid until the maximum value is reached, and the instruction is not sent any more. The interval of the second switch button S2 cannot exceed 3S (the time can be freely set), and when the interval exceeds the preset time, the second single chip microcomputer accumulator is automatically cleared. It should be noted that the fourth switch key S4 and the fifth switch key S5 are used in the same manner as the second switch key S2 and the third switch key S3, and the difference is that after the fourth switch key S4 is switched, the first single chip microcomputer triggers the instruction counting from the current 11, so that the second single chip microcomputer can identify the code as the color temperature control code, and calculate the number of open phases, and further analyze the pulse width signal D11 of the matched color temperature control (CCT chip) and provide the pulse width signal to the chip module for controlling the color temperature, thereby obtaining the desired color temperature parameter.
Step S102: the power grid waveform is rectified and sampled based on a sampling circuit in a preset sampling decoding module, the coding of the identification brightness or color temperature and the times of missing phase waveforms obtained by the sampling circuit are memorized and stored through a second single chip microcomputer in the sampling decoding module, and pulse width signals equivalent to keys are decoded. Wherein the sampling circuit comprises a third resistor R3 and a fourth resistor R4.
Step S103: and sending the pulse width signal to a preset power management module, and outputting a control current signal based on a power management chip in the power management module.
In the embodiment of the invention, the POWER management module a4 includes a POWER rectification module, a filtering module, an energy conversion module, a constant current sampling module, a CCT-mode chip (CCT-mode) for managing the color temperature of the LED, a POWER management chip (POWER-IC), and the like, so that the POWER management module has the functions of POWER rectification, filtering, energy conversion, constant current sampling, and the like. The basic circuit structure is the working mechanism of the traditional step-down high-frequency switching power supply.
The power management chip is internally integrated with various protection circuits, identification circuits and the like, and mainly can identify pulse width signals (namely the pulse width signals analyzed by the second single chip microcomputer) and change sampling voltage at the end of a resistor R6 of sampling current to carry out negative feedback, so that the set output current is reduced, and the power reduction effect is achieved. The CCT chip is a chip for managing the color temperature of the LED, and is composed of two groups of color temperature lamp beads through an LED load, and complementation is carried out through a pulse width enabling pin. For example, if the color temperature lamp beads are 3000K and 4000K, when 20% of the pulse width PWM is high level, 3000K color temperature load can be selected to be turned on, 80% of the pulse width PWM corresponds to 4000K color temperature load to be turned on, and in the high-frequency pulse width PWM, the continuous 3000K and 4000K are in complementary switching, so that the low-frequency flicker response of human eyes is avoided, and the effects of light mixing and color temperature mixing are achieved. Similarly, different pulse widths PWM can be changed to achieve the desired color temperature effect, and details are not repeated herein.
In a complete implementation process, the generation of the trigger signal of the I/O port of the first single chip microcomputer can be controlled through the key combination of the second switch key S2 and the third switch key S3 in the switch control module a1, and a signal source instruction is generated, and the generated signal source instruction controls the opening or closing time of the main control switch Q1 in the switch module A3, so that the power grid generates a power grid waveform signal with a certain phase angle. In the sampling decoding module a2, a sampling circuit composed of a third resistor R3 and a fourth resistor R4 can realize rectification sampling of a power grid waveform signal, a second single chip microcomputer in the sampling decoding module a2 obtains codes for identifying brightness or color temperature through the sampling circuit, and times of calculated missing phases, after memory storage, pulse width signals equivalent to keys are decoded, and then the pulse width signals are sent to an enabling pin of a power management chip in the power management module a4, so that an effect of controlling output current, namely a dimming effect, is achieved.
It should be noted that the pulse signal generated by the present application is not limited to be used in the lighting device, and as long as there is a need for related equipment controlled by the power grid and capable of receiving the pulse width signal, the similar function can be implemented, and details are not repeated herein.
By adopting the induction control method based on the power grid, the original whole line is not required to be changed, the construction and transformation cost is low, the fault rate is low, the control is stable, the network safety problem is avoided, the high-power factor and the low harmonic distortion can be maintained in the induction control process, the utilization rate is improved, and the operation experience of a user is improved.
Corresponding to the induction control method realized based on the power grid, the invention also provides an induction control system realized based on the power grid. Since the embodiment of the system is similar to the embodiment of the method and the device, the description is simple, and please refer to the description of the embodiment of the method and the device, and the embodiment of the induction control system based on the grid implementation described below is only schematic. Fig. 3 is a schematic diagram of an induction control device implemented based on a power grid according to an embodiment of the present invention.
The invention relates to an induction control device realized based on a power grid, which comprises the following parts:
the waveform signal generating unit 201 is configured to trigger the first single chip microcomputer to generate a signal source instruction based on a key combination in a preset switch control module, and control the time for turning on or off a main control switch in the preset switch module through the signal source instruction, so that a power grid generates a corresponding power grid waveform;
the pulse width signal production unit 202 is used for performing rectification sampling on the power grid waveform based on a sampling circuit in a preset sampling decoding module, memorizing and storing the coding of the identification brightness or color temperature and the times of missing phase waveforms obtained by the sampling circuit through a second single chip microcomputer in the sampling decoding module, and decoding a pulse width signal equivalent to a key;
and the current control unit 203 is configured to send the pulse width signal to a preset power management module, and output a control current signal based on a power management chip in the power management module.
By adopting the induction control device realized based on the power grid, high power factors and low harmonic distortion can be maintained in the induction control process, the utilization rate is improved, and the operation experience of a user is improved.
Corresponding to the induction control method based on the power grid, the invention also provides electronic equipment. Since the embodiment of the electronic device is similar to the above method embodiment, the description is relatively simple, and please refer to the description of the above method embodiment, and the electronic device described below is only schematic. As shown in fig. 3, a structural diagram of an induction control system implemented based on a power grid according to an embodiment of the present invention specifically includes the following components: the system comprises a switch control module A1 for generating different signal source commands to control the switch, a switch module A3 for receiving signal source command control and switching a main control switch of a power grid, a sampling and decoding module A2 for rectifying and sampling power grid waveforms and decoding pulse width signals equivalent to keys, and a power management module A4 for identifying the pulse width signals and converting a power supply circuit to control the lighting equipment; the switch control module A1, the switch module A3, the sample decode module A2 are connected with the power management module A4.
The key combination comprises a second switch key S2, a third switch key S3, a fourth switch key S4, a fifth switch key S5 and a first single chip microcomputer (MCU 1); the second switch key S2, the third switch key S3, the fourth switch key S4 and the fifth switch key S5 are respectively connected with different pins of the first single chip microcomputer. The power management module A4 comprises a power rectification module, a filtering module, an energy conversion module, a constant current sampling module, a CCT chip for managing the color temperature of the LED, a power management chip and the like; the CCT chip is connected with the second single chip microcomputer (MCU 2); and a protection circuit, an identification circuit for identifying a pulse width signal and the like are integrated in the power management chip. A sampling circuit and a second singlechip are arranged in the sampling decoding module A2; the sampling circuit is connected with the second single chip microcomputer, and the second single chip microcomputer is connected with the power management chip; the sampling circuit is composed of a third resistor R3 and a fourth resistor R4.
In a specific implementation process, the switch control module a1 can execute signals of different switching times and time sequences through different KEY combinations, and send the signals to the switch control pins. And the switch module A3 receives the corresponding signal to synchronously switch the power grid. The sampling decoding module judges the switching times and time domain of the power grid voltage through sampling the power grid voltage of the power grid switching later stage, confirms the function and outputs a PWM pulse width signal required by a load end through an internal program of the second single chip microcomputer. The power management module A4 controls the load after receiving the PWM signal and being the main power supply line of the load, thereby achieving the effect of the application end. The main power supply part of the load is mainly constant-current power supply in the field of LED illumination, a circuit is completed through a mature topology structure of switching power supplies such as rectification, energy storage conversion, constant-current sampling and the like, the part for receiving the PWM pulse width signal can be an enabling port built in a power supply chip, can also be externally provided with some switching tubes and the like, and is not particularly limited, and the required function control effect can be achieved as long as PWM is controllable.
By adopting the induction control system realized based on the power grid, the original whole line is not required to be changed, the construction and transformation cost is low, the fault rate is low, the control is stable, the network safety problem is avoided, the high-power factor and the low harmonic distortion can be maintained in the induction control process, the utilization rate is improved, and the operation experience of a user is improved.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, and it should be appreciated by those skilled in the art that the above-mentioned example or examples are only embodiments of the present invention and are not intended to limit the scope of the present invention, and any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.
Claims (10)
1. An induction control method realized based on a power grid is characterized by comprising the following steps:
triggering a first single chip microcomputer to generate a signal source instruction based on a key combination in a preset switch control module, and controlling the opening or closing time of a main control switch in the preset switch module through the signal source instruction so that a power grid generates a corresponding power grid waveform;
based on a sampling circuit in a preset sampling decoding module, rectifying and sampling the power grid waveform, memorizing and storing the coding of the identification brightness or color temperature and the times of missing phase waveform obtained by the sampling circuit through a second singlechip in the sampling decoding module, and decoding a pulse width signal equivalent to a key;
and sending the pulse width signal to a preset power management module, and outputting a control current signal based on a power management chip in the power management module.
2. The grid-based implementation of the inductive control method according to claim 1, further comprising: the key combination comprises at least one of a second switch key, a third switch key, a fourth switch key and a fifth switch key;
and respectively defining attribute codes of the second switch key, the third switch key, the fourth switch key and the fifth switch key according to preset functional requirements, and identifying and storing the coded attribute information through the first single chip microcomputer.
3. The grid-based induction control method according to claim 2, wherein the defining the attribute codes of the second switch key, the third switch key, the fourth switch key and the fifth switch key according to preset functional requirements comprises: and randomly selecting two switch keys from the second switch key, the third switch key, the fourth switch key and the fifth switch key to define dimming, and defining the rest two switch keys as color-temperature-adjusting.
4. The power grid-based induction control method of claim 2, wherein the power management module comprises a power rectification module, a filtering module, an energy conversion module, a constant current sampling module, a CCT chip for managing the color temperature of the LED, and a power management chip, and a protection circuit and an identification circuit for identifying the pulse width signal are integrated in the power management chip; and the power supply management chip is used for controlling the sampling voltage of the sixth resistor end for changing the sampling current to perform negative feedback so as to reduce the set output current.
5. The power grid implementation-based induction control method according to claim 4, wherein triggering the first single chip microcomputer to generate the signal source instruction based on the key combination in the preset switch control module comprises: and executing signals of the switching times and the time sequence of different KEY combinations by the switch control module through different KEY KEY combinations, sending the signals to the switch control pin of the first single chip microcomputer, and triggering the first single chip microcomputer to generate a signal source instruction.
6. The grid-based implementation of the inductive control method according to claim 1, wherein the sampling circuit comprises a third resistor and a fourth resistor.
7. An induction control device realized based on a power grid is characterized by comprising:
the waveform signal generating unit is used for triggering the first single chip microcomputer to generate a signal source instruction based on a key combination in a preset switch control module, and controlling the opening or closing time of a main control switch in the preset switch module through the signal source instruction so that a power grid generates a corresponding power grid waveform;
the pulse width signal production unit is used for carrying out rectification sampling on the power grid waveform based on a sampling circuit in a preset sampling decoding module, memorizing and storing the coding of the identification brightness or color temperature and the times of missing phase waveforms obtained by the sampling circuit through a second singlechip in the sampling decoding module, and decoding a pulse width signal equivalent to a key;
and the current control unit is used for sending the pulse width signal to a preset power management module and outputting a control current signal based on a power management chip in the power management module.
8. An induction control system realized based on a power grid, comprising: the system comprises a switch control module, a switch module, a sampling and decoding module and a power management module, wherein the switch control module is used for generating different signal source instructions to control a switch, the switch module is used for receiving the signal source instructions to control and switching a main control switch of a power grid, the sampling and decoding module is used for carrying out rectification sampling on the waveform of the power grid and decoding pulse width signals equivalent to keys, and the power management module is used for identifying the pulse width signals and converting a power circuit to control lighting equipment; the switch control module, the switch module and the sampling decoding module are connected with the power management module.
9. The power grid implementation-based induction control system of claim 8, wherein the key combination comprises a second switch key, a third switch key, a fourth switch key, a fifth switch key and a first single chip microcomputer; the second switch key, the third switch key, the fourth switch key and the fifth switch key are respectively connected with different pins of the first single chip microcomputer.
10. The grid-based induction control system of claim 8, wherein the power management module A4 comprises a power rectification module, a filtering module, an energy conversion module, a constant current sampling module, a CCT chip for managing LED color temperature, and a power management chip; the CCT chip is connected with the second singlechip; a protection circuit and an identification circuit for identifying pulse width signals are integrated in the power management chip;
a sampling circuit and the second singlechip are arranged in the sampling decoding module; the sampling circuit is connected with the second single chip microcomputer, and the second single chip microcomputer is connected with the power management chip; the sampling circuit includes a third resistor and a fourth resistor.
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| CN202010796393.7A CN111970794A (en) | 2020-08-10 | 2020-08-10 | Induction control method, device and system based on power grid |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201341267Y (en) * | 2009-01-10 | 2009-11-04 | 吴广毅 | Light brightness adjusting device |
| CN201479444U (en) * | 2009-08-26 | 2010-05-19 | 秦兵 | Key-press light adjusting energy-saving lamp |
| CN101997481A (en) * | 2009-08-27 | 2011-03-30 | 海洋王照明科技股份有限公司 | Intelligent motor control system and method |
| US20140035530A1 (en) * | 2011-04-18 | 2014-02-06 | Zehua Shao | Electric automobile pwm rectification and converting voltage/current pulse charging system |
| CN107846755A (en) * | 2017-11-20 | 2018-03-27 | 李舒 | A kind of circuit and its control method of remote control LED degree of lightening color-temperature regulatings |
| CN108770136A (en) * | 2018-08-17 | 2018-11-06 | 东莞邦达五金有限公司 | A kind of light modulation toning LED isolation constant-current driving power supplies |
| CN209691086U (en) * | 2019-03-07 | 2019-11-26 | 国网山东省电力公司济宁供电公司 | A kind of Digiplex |
| CN111194119A (en) * | 2020-03-10 | 2020-05-22 | 帝奥微电子有限公司 | LED driving circuit and method capable of being controlled by switching and dimming |
-
2020
- 2020-08-10 CN CN202010796393.7A patent/CN111970794A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201341267Y (en) * | 2009-01-10 | 2009-11-04 | 吴广毅 | Light brightness adjusting device |
| CN201479444U (en) * | 2009-08-26 | 2010-05-19 | 秦兵 | Key-press light adjusting energy-saving lamp |
| CN101997481A (en) * | 2009-08-27 | 2011-03-30 | 海洋王照明科技股份有限公司 | Intelligent motor control system and method |
| US20140035530A1 (en) * | 2011-04-18 | 2014-02-06 | Zehua Shao | Electric automobile pwm rectification and converting voltage/current pulse charging system |
| CN107846755A (en) * | 2017-11-20 | 2018-03-27 | 李舒 | A kind of circuit and its control method of remote control LED degree of lightening color-temperature regulatings |
| CN108770136A (en) * | 2018-08-17 | 2018-11-06 | 东莞邦达五金有限公司 | A kind of light modulation toning LED isolation constant-current driving power supplies |
| CN209691086U (en) * | 2019-03-07 | 2019-11-26 | 国网山东省电力公司济宁供电公司 | A kind of Digiplex |
| CN111194119A (en) * | 2020-03-10 | 2020-05-22 | 帝奥微电子有限公司 | LED driving circuit and method capable of being controlled by switching and dimming |
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Application publication date: 20201120 |