CN111295005A - Light synchronous control circuit and system based on zero-crossing detection - Google Patents
Light synchronous control circuit and system based on zero-crossing detection Download PDFInfo
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Abstract
The invention belongs to the technical field of electronic circuits, and provides a light synchronous control circuit and system based on zero-crossing detection. Therefore, on the basis of wireless control, a time reference is introduced, and the effect of synchronizing color change or switching of the LED lamp is realized; meanwhile, through the modularized connection arrangement, once a certain module or some modules are damaged, only the module needs to be replaced, so that the change and maintenance cost is low, the problems that the change or the maintenance cost is high in the existing light synchronous control technology, and the LED lamp is changed in color or switched asynchronously after a plurality of times are solved.
Description
Technical Field
The invention belongs to the technical field of electronic circuits, and particularly relates to a light synchronous control circuit and system based on zero-crossing detection.
Background
In an intelligent home scene, dynamic LED lamp control such as synchronous light switching, synchronous color changing and synchronous switching is an important requirement.
However, in the conventional bus control method, the control command of the host reaches the LED lamp of the terminal through the hardware line. The bus control depends on the wiring in the previous stage, and the change or maintenance cost is very high when the demand change or the failure occurs.
Secondly, although the existing wireless control method can complete the instant synchronization, after a certain time, the timing of the synchronous color change or synchronous switching of each LED lamp is deviated, and the deviation is accumulated until the deviation is not at a synchronous point at last.
Therefore, the existing light synchronous control technology has the problems that the change or maintenance cost is high, and the color change or switching of the LED lamp is asynchronous after a plurality of times.
Disclosure of Invention
The invention aims to provide a light synchronization control circuit and a light synchronization control system based on zero-crossing detection, and aims to solve the problems that the change or maintenance cost is high, and the color change or switching of an LED lamp is asynchronous after a certain time in the existing light synchronization control technology.
The invention provides a light synchronous control circuit based on zero-crossing detection, which is connected with an LED lamp and comprises:
the wireless remote control module is used for transmitting a wireless signal according to the control instruction;
the master control module is connected with the wireless remote control module and the LED lamp and used for receiving the wireless signals, processing the wireless signals and outputting pulse signals to drive the LED lamp;
the zero-crossing detection module is connected with the main control module and used for carrying out zero-crossing detection and providing a timing reference for the main control module so as to synchronously change colors and synchronously switch all LED lamp groups in the LED lamp; and
and the power supply module is connected with the main control module and used for supplying power to the main control module.
The invention provides a light synchronous control system based on zero-crossing detection, which comprises a light synchronous control circuit and an LED lamp, wherein the light synchronous control circuit comprises:
the wireless remote control module is used for transmitting a wireless signal according to the control instruction;
the master control module is connected with the wireless remote control module and the LED lamp and used for receiving the wireless signals, processing the wireless signals and outputting pulse signals to drive the LED lamp;
the zero-crossing detection module is connected with the main control module and used for carrying out zero-crossing detection and providing a timing reference for the main control module so as to synchronously change colors and synchronously switch all LED lamp groups in the LED lamp; and
and the power supply module is connected with the main control module and used for supplying power to the main control module.
The invention provides a light synchronous control circuit and system based on zero-crossing detection, which comprises a wireless remote control module, a main control module, a zero-crossing detection module and a power supply module, wherein a wireless signal is transmitted to the main control module according to a control instruction of a user, and a timing reference is provided for the main control module after the zero-crossing detection is carried out, so that the main control module outputs a pulse signal to drive an LED lamp after the signal processing is carried out on the wireless signal, and all LED lamp groups in the LED lamp are synchronously discolored and synchronously switched. Therefore, on the basis of wireless control, a time reference is introduced, and the effect of synchronizing color change or switching of the LED lamp is realized; meanwhile, through the modularized connection arrangement, once a certain module or some modules are damaged, only the module needs to be replaced, so that the change and maintenance cost is low, the problems that the change or the maintenance cost is high in the existing light synchronous control technology, and the LED lamp is changed in color or switched asynchronously after a plurality of times are solved.
Drawings
Fig. 1 is a schematic structural diagram of a module of a light synchronization control circuit based on zero-crossing detection according to an embodiment of the present invention.
Fig. 2 is an exemplary circuit diagram of a power module in a light synchronization control circuit based on zero-crossing detection according to an embodiment of the present invention.
Fig. 3 is an exemplary circuit diagram of a zero-crossing detection module in a lamp synchronization control circuit based on zero-crossing detection according to an embodiment of the present invention.
Fig. 4 is an exemplary circuit diagram of a main control module in a light synchronization control circuit based on zero-crossing detection according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
According to the light synchronous control circuit and system based on zero-crossing detection, the wireless remote control module transmits a wireless signal to the main control module according to a control instruction of a user, and the zero-crossing detection module provides a timing reference for the main control module after performing zero-crossing detection, so that the main control module outputs a pulse signal to drive the LED lamp after performing signal processing on the wireless signal, and all LED lamp groups in the LED lamp are subjected to synchronous color change and synchronous switching. Therefore, on the basis of wireless control, a time reference is introduced, namely, the alternating current frequency of about 50Hz on a 220V power grid is used as a timing standard, so that the effect of synchronous color change or switching of the LED lamp is realized; meanwhile, through the modularized connection arrangement, once a certain module or some modules are damaged, only the module needs to be replaced, so that the change and maintenance cost is low; the problem of in the wireless light synchronization system, because the deviation of reference clock accumulates, lead to final asynchronous is solved.
Fig. 1 shows a module structure of a light synchronization control circuit based on zero-crossing detection according to an embodiment of the present invention, and for convenience of description, only the parts related to this embodiment are shown, which are detailed as follows:
the light synchronization control circuit based on the zero-crossing detection is connected with the LED lamp 105, and comprises a wireless remote control module 102, a main control module 101, a zero-crossing detection module 103 and a power module 104.
The wireless remote control module 102 is used for transmitting a wireless signal according to the control instruction.
The main control module 101 is connected to the wireless remote control module 102 and the LED lamp 105, and is configured to receive a wireless signal, perform signal processing on the wireless signal, and output a pulse signal to drive the LED lamp 105.
The zero-crossing detection module 103 is connected to the main control module 101, and is configured to perform zero-crossing detection and provide a timing reference for the main control module 101, so that all LED lamp sets in the LED lamp 105 are subjected to synchronous color change and synchronous switching.
The power module 104 is connected to the main control module 101, and is configured to supply power to the main control module 101.
As an embodiment of the present invention, the wireless remote control module 102 includes a wireless touch remote controller or a wireless key remote controller, that is, when a user presses a key or touches the wireless touch remote controller with a finger on the wireless key remote controller, the wireless remote control module 102 receives a control instruction of the user, and transmits the control instruction to convert the control instruction into a wireless signal and transmit the wireless signal to the main control module 101. Specifically, the wireless remote control module 102 and the main control module 101 communicate wirelessly, and the communication mode may be Wifi, bluetooth or infrared transmission.
And when a certain key of the wireless key remote controller is pressed, the wireless radio frequency chip can send out dozens of data packets, and the format of the data packets is as follows: data stream number + remote controller serial number + key function code + timestamp. These tens of packets are identical except for the time stamp. The timestamp of the first data packet is N, the timestamp of the second data packet is N-1, and so on until the timestamp is 0.
As an embodiment of the present invention, the LED lamp 105 may be a heating/cooling lamp, an RGB lamp, or other dimming lamps.
Fig. 2 shows an exemplary circuit of a power module in a light synchronization control circuit based on zero-crossing detection according to an embodiment of the present invention, and for convenience of description, only the parts related to this embodiment are shown, which is detailed as follows:
as an embodiment of the present invention, the power module 104 includes a power utilization terminal J1 for connecting a commercial power, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a voltage dependent resistor VDR1, a first diode D1, a second diode D2, a third diode D3, a fifth diode D5, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fifth capacitor C5, a first filter capacitor E1, a third filter capacitor E3, a first inductor L1, and a power chip U1;
a first terminal of the second resistor R2 is connected to a first terminal of the electrical terminal J1, a second terminal of the second resistor R2 is connected to an anode of the first diode D1 and a first terminal of the voltage dependent resistor VDR1 in common, a cathode of the first diode D1 is connected to the input terminal DR of the power chip U1, a second terminal of the voltage dependent resistor VDR1 is connected to a cathode of the second diode D2, a power terminal VCC of the power chip U1 is connected to a first terminal of the second capacitor C2, a first terminal of the third capacitor C3 is connected to a first terminal of the first resistor R1 and a first terminal of the third resistor R3 are connected to the control terminal FB 9 of the power chip U1, a second terminal of the first resistor R1 is connected to a first terminal of the first capacitor C1 and a cathode of the third diode D3 in common, an anode of the third diode D3 is connected to a first terminal E3, a cathode of the first terminal C1 of the first capacitor C2, a cathode of the second diode D2, and a cathode of the first diode D2, The second end of the third capacitor C3, the second end of the third resistor R3 and the first end of the first inductor L1 are connected to the output terminal S of the power chip U1, the second end of the first inductor L1, the first end of the fifth capacitor C5 and the first end of the fourth resistor R4 are connected to the reference voltage 5V, and the anode of the second diode D2, the second end of the first filter capacitor E1, the anode of the fifth diode D5, the second end of the third filter capacitor E3, the second end of the fifth capacitor C5 and the second end of the fourth resistor R4 are grounded.
Specifically, the power chip U1 may be a power chip with a model MP174, but the model of the power chip is not limited as long as the functional function of the power chip U1 in the present embodiment can be achieved.
And, the power module 104 provides 5V dc power for the main control module 101, and 220V ac power is input from the zero live wire, and after being rectified by the fuse resistor, the varistor and the 2 diodes, the 220V ac power is adjusted to 5V dc power by the power IC for output.
Fig. 3 shows an exemplary circuit of a zero-crossing detection module in a light synchronization control circuit based on zero-crossing detection according to an embodiment of the present invention, and for convenience of description, only the parts related to this embodiment are shown, which is detailed as follows:
as an embodiment of the present invention, the zero-cross detection module 103 includes a connection terminal J3 for connecting to the main control module 101, a seventh resistor R7, an eighth resistor R8, a twelfth resistor R12, and a sixth capacitor C6;
the first end of the eighth resistor R8 is connected to the seventh resistor R7, the second end of the eighth resistor R8 is connected to the first end of the twelfth resistor R12 and the first end of the sixth capacitor C6 through the terminal J3, and the second end of the twelfth resistor R12 is connected to the second end of the sixth capacitor C6 through the ground.
In particular, a diode may be further added to the zero-crossing detection module 103 to rectify and stabilize the voltage, which increases the stability and safety of the circuit. The commercial power is with the alternating current frequency of about 50Hz sine wave, and to the IO mouth of master control module after stepping down, IO mouth is set up to the border and is interrupted the trigger, and a sine wave cycle can let IO mouth trigger twice, triggers the interval duration about 10 ms. This frequency is the same on the same grid, with 10ms as a timing reference.
Fig. 4 shows an exemplary circuit of a main control module in a light synchronization control circuit based on zero-crossing detection according to an embodiment of the present invention, and for convenience of description, only the parts related to this embodiment are shown, which are detailed as follows:
as an embodiment of the present invention, the main control module 101 includes an antenna ANT1, a wireless radio frequency chip U2, a main control chip U3, an eleventh capacitor C11, a twelfth capacitor C12, a thirteenth capacitor C13, an eleventh resistor R11, a twelfth resistor, a crystal oscillator Y1, a seventh capacitor C7, an eighth capacitor C8, and a tenth capacitor C10;
an antenna ANT1 is connected with a receiving terminal ANT b of the wireless radio frequency chip U2, a first terminal of an eleventh capacitor C11 and a first terminal of a twelfth capacitor C12 are connected with a power supply terminal RF-VDD of the wireless radio frequency chip U2, a first terminal of a thirteenth capacitor C13 and a first terminal of an eleventh resistor R11 are connected with an input terminal LDO-IN of the wireless radio frequency chip U2, a second terminal of an eleventh capacitor C11 and a second terminal of a twelfth capacitor C12 are connected with ground, a first terminal and a second terminal of a crystal oscillator Y1 are respectively connected with the wireless radio frequency chip U2, an output terminal of the wireless radio frequency chip U2 is connected with an input terminal of the main control chip U3, a first terminal of an eighth capacitor C8 and a first terminal of a tenth capacitor C10 are connected with a receiving terminal VR0 of the main control chip U3, a second terminal of an eighth capacitor C8 and a second terminal of a tenth capacitor C10 are connected with ground, a first terminal of a seventh capacitor C7V 7, a second terminal of the main control capacitor C7 and a second terminal of the twelfth capacitor C7 are connected with an output terminal of the main control, a second terminal of the twelfth resistor R12 is connected to ground.
Specifically, the type LT8920 of the wireless rf chip U2 may be adopted, but the type of the wireless rf chip is not limited as long as the function of the wireless rf chip U2 in the present embodiment is achieved.
Specifically, the main control chip U3 may be a main control chip with a model number MA82G5B16-20, and the model number of the main control chip is not limited as long as the function of the main control chip U3 in the present embodiment can be achieved.
The wireless rf chip U2 is responsible for receiving wireless data and transmitting the data to the main control chip U3 through the SPI, and the main control chip U3 is responsible for processing the data transmitted from the wireless rf chip U2 and outputting a plurality of PWM signals to drive the LED lamp 105 according to the timing reference of the zero-cross detection module 103.
The invention further provides a light synchronous control system based on zero-crossing detection, which comprises an LED lamp and a light synchronous control circuit used for driving the LED lamp, wherein the light synchronous control circuit is as described above.
The working principle of the above-mentioned lamp synchronous control circuit and system based on zero-crossing detection is described below with reference to fig. 1 to 4 as follows:
first, the power module 104 supplies power to the main control module 101, and a user presses a circulation mode key of the wireless key remote controller (the circulation mode is a light control mode in which the LED lamp changes color according to a specific time interval, a specific sequence, and a circulation), and the wireless key remote controller transmits a plurality of wireless data according to a time sequence through the radio frequency IC, wherein a timestamp of a first one is N, a timestamp of a second one is N-1, and so on, a timestamp of a last one is 0.
Secondly, the time of the wireless data received by each LED lamp is different according to the environment or interference of the site. Suppose that LED lamp number 1 receives a wireless data packet with a timestamp of N-N. The timestamp of the No. 2 LED lamp receiving the wireless data packet is N-m. After receiving the data packet, the LED lamp firstly judges whether the data is received for the first time, and if the data is not received for the first time, the data packet is abandoned; if so, analyzing whether the format and the content of the data packet are correct, starting to start the zero-crossing detection module 103 after determining to execute the data packet command, and reducing the time of the time stamp by 10ms by triggering each zero-crossing interrupt. When the time stamp time is reduced to 0, the control command of the packet is executed. The timestamps of the No. 1 LED lamp and the No. 2 LED lamp are not consistent, but are finally reduced to 0 at the same time after zero-crossing detection timing.
The end result is that LED 1 and LED 2 lights will turn on at the same time and enter the next counting cycle. Since the frequencies of the alternating currents in the same power grid are the same, even if the 10ms time base generated by the zero-crossing detection module 103 deviates, the deviation will simultaneously act on all the LED lamps in the power grid, i.e., all the LED lamps will not deviate from each other.
Therefore, the light synchronous control circuit and the system based on the zero-crossing detection have the following advantages:
1. the cost is reduced: the installation cost is reduced, and the hardware overhead is reduced;
2. the control efficiency is improved: because the hardware of zero-crossing detection is adopted for timing, the original MCU timer has more resources to process the control logic;
3. and (3) improving the control precision: the time reference generated by zero-crossing detection is 10ms, the synchronous control error generated by adopting the time reference is within 10ms, and deviation accumulation is not generated.
To sum up, the light synchronization control circuit and system based on zero-crossing detection provided by the embodiments of the present invention include a wireless remote control module, a main control module, a zero-crossing detection module and a power supply module, and transmit a wireless signal to the main control module according to a control instruction of a user, and provide a timing reference for the main control module after performing zero-crossing detection, so that the main control module outputs a pulse signal to drive an LED lamp after performing signal processing on the wireless signal, and enables all LED lamp sets in the LED lamp to perform synchronous color changing and synchronous switching. Therefore, on the basis of wireless control, a time reference is introduced, and the effect of synchronizing color change or switching of the LED lamp is realized; meanwhile, through the modularized connection arrangement, once a certain module or some modules are damaged, only the module needs to be replaced, so that the change and maintenance cost is low, the problems that the change or the maintenance cost is high in the existing light synchronous control technology, and the LED lamp is changed in color or switched asynchronously after a plurality of times are solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a light synchronization control circuit based on zero cross detection, is connected with LED lamps and lanterns which characterized in that, light synchronization control circuit includes:
the wireless remote control module is used for transmitting a wireless signal according to the control instruction;
the master control module is connected with the wireless remote control module and the LED lamp and used for receiving the wireless signals, processing the wireless signals and outputting pulse signals to drive the LED lamp;
the zero-crossing detection module is connected with the main control module and used for carrying out zero-crossing detection and providing a timing reference for the main control module so as to synchronously change colors and synchronously switch all LED lamp groups in the LED lamp; and
and the power supply module is connected with the main control module and used for supplying power to the main control module.
2. The light synchronization control circuit of claim 1, wherein the power module comprises:
the power supply circuit comprises a power utilization terminal, a first resistor, a second resistor, a third resistor, a fourth resistor, a piezoresistor, a first diode, a second diode, a third diode, a fifth diode, a first capacitor, a second capacitor, a third capacitor, a fifth capacitor, a first filter capacitor, a third filter capacitor, a first inductor and a power supply chip, wherein the power utilization terminal, the first resistor, the second resistor, the third resistor, the fourth resistor, the piezoresistor, the first diode, the second diode, the third diode, the fifth diode, the first capacitor;
the first end of the second resistor is connected with the first end of the power utilization terminal, the second end of the second resistor is connected with the anode of the first diode and the first end of the piezoresistor in a common way, the cathode of the first diode and the first end of the first filter capacitor are connected with the input end of the power chip, the second end of the piezoresistor and the cathode of the second diode are connected with the second end of the power utilization terminal, the power supply end of the power chip is connected with the first end of the second capacitor, the first end of the third capacitor, the first end of the first resistor and the first end of the third resistor are connected with the control end of the power chip, the second end of the first resistor is connected with the first end of the first capacitor and the cathode of the third diode in a common way, the anode of the third diode is connected with the first end of the third filter capacitor, and the second end of the first capacitor is connected with the cathode of the fifth diode, the second end of the second capacitor, the second end of the third resistor and the first end of the first inductor are connected with the output end of the power supply chip, the second end of the first inductor, the first end of the fifth capacitor and the first end of the fourth resistor are connected with a reference voltage, and the anode of the second diode, the second end of the first filter capacitor, the anode of the fifth diode, the second end of the third filter capacitor, the second end of the fifth capacitor and the second end of the fourth resistor are grounded.
3. The light synchronization control circuit of claim 1, wherein the zero-crossing detection module comprises:
the connecting terminal, the seventh resistor, the eighth resistor, the twelfth resistor and the sixth capacitor are used for connecting the main control module;
the first end of the eighth resistor is connected with the seventh resistor, the second end of the eighth resistor, the first end of the twelfth resistor and the first end of the sixth capacitor are connected with the connecting terminal, and the second end of the twelfth resistor and the second end of the sixth capacitor are grounded.
4. The light synchronization control circuit according to claim 1, wherein the main control module comprises:
the antenna, the wireless radio frequency chip, the main control chip, the eleventh capacitor, the twelfth capacitor, the thirteenth capacitor, the eleventh resistor, the twelfth resistor, the crystal oscillator, the seventh capacitor, the eighth capacitor and the tenth capacitor;
the antenna is connected with a receiving end of the wireless radio frequency chip, a first end of the eleventh capacitor and a first end of the twelfth capacitor are connected with a power supply end of the wireless radio frequency chip, a first end of the thirteenth capacitor and a first end of the eleventh resistor are connected with an input end of the wireless radio frequency chip, a second end of the eleventh capacitor, a second end of the twelfth capacitor and a second end of the thirteenth capacitor are grounded, a first end and a second end of the crystal oscillator are respectively connected with the wireless radio frequency chip, an output end of the wireless radio frequency chip is connected with an input end of the main control chip, a first end of the eighth capacitor and a first end of the tenth capacitor are connected with a receiving end of the main control chip, a second end of the eighth capacitor and a second end of the tenth capacitor are grounded, a first end of the seventh capacitor is connected with a voltage power supply, and a second end of the seventh capacitor and a first end of the twelfth resistor are connected with an output end of the main control chip, a second end of the twelfth resistor is grounded.
5. The light synchronization control circuit of claim 1, wherein the wireless remote control module comprises a wireless touch remote controller or a wireless key remote controller.
6. The utility model provides a light synchronous control system based on zero cross detection, includes light synchronous control circuit and LED lamps and lanterns, its characterized in that, light synchronous control circuit includes:
the wireless remote control module is used for transmitting a wireless signal according to the control instruction;
the master control module is connected with the wireless remote control module and the LED lamp and used for receiving the wireless signals, processing the wireless signals and outputting pulse signals to drive the LED lamp;
the zero-crossing detection module is connected with the main control module and used for carrying out zero-crossing detection and providing a timing reference for the main control module so as to synchronously change colors and synchronously switch all LED lamp groups in the LED lamp; and
and the power supply module is connected with the main control module and used for supplying power to the main control module.
7. The light synchronization control system of claim 6, wherein the power module comprises:
the power supply circuit comprises a power utilization terminal, a first resistor, a second resistor, a third resistor, a fourth resistor, a piezoresistor, a first diode, a second diode, a third diode, a fifth diode, a first capacitor, a second capacitor, a third capacitor, a fifth capacitor, a first filter capacitor, a third filter capacitor, a first inductor and a power supply chip, wherein the power utilization terminal, the first resistor, the second resistor, the third resistor, the fourth resistor, the piezoresistor, the first diode, the second diode, the third diode, the fifth diode, the first capacitor;
the first end of the second resistor is connected with the first end of the power utilization terminal, the second end of the second resistor is connected with the anode of the first diode and the first end of the piezoresistor in a common way, the cathode of the first diode and the first end of the first filter capacitor are connected with the input end of the power chip, the second end of the piezoresistor and the cathode of the second diode are connected with the second end of the power utilization terminal, the power supply end of the power chip is connected with the first end of the second capacitor, the first end of the third capacitor, the first end of the first resistor and the first end of the third resistor are connected with the control end of the power chip, the second end of the first resistor is connected with the first end of the first capacitor and the cathode of the third diode in a common way, the anode of the third diode is connected with the first end of the third filter capacitor, and the second end of the first capacitor is connected with the cathode of the fifth diode, the second end of the second capacitor, the second end of the third resistor and the first end of the first inductor are connected with the output end of the power supply chip, the second end of the first inductor, the first end of the fifth capacitor and the first end of the fourth resistor are connected with a reference voltage, and the anode of the second diode, the second end of the first filter capacitor, the anode of the fifth diode, the second end of the third filter capacitor, the second end of the fifth capacitor and the second end of the fourth resistor are grounded.
8. The light synchronization control system of claim 6, wherein the zero-crossing detection module comprises:
the connecting terminal, the seventh resistor, the eighth resistor, the twelfth resistor and the sixth capacitor are used for connecting the main control module;
the first end of the eighth resistor is connected with the seventh resistor, the second end of the eighth resistor, the first end of the twelfth resistor and the first end of the sixth capacitor are connected with the connecting terminal, and the second end of the twelfth resistor and the second end of the sixth capacitor are grounded.
9. The light synchronization control system according to claim 6, wherein the main control module comprises:
the antenna, the wireless radio frequency chip, the main control chip, the eleventh capacitor, the twelfth capacitor, the thirteenth capacitor, the eleventh resistor, the twelfth resistor, the crystal oscillator, the seventh capacitor, the eighth capacitor and the tenth capacitor;
the antenna is connected with a receiving end of the wireless radio frequency chip, a first end of the eleventh capacitor and a first end of the twelfth capacitor are connected with a power supply end of the wireless radio frequency chip, a first end of the thirteenth capacitor and a first end of the eleventh resistor are connected with an input end of the wireless radio frequency chip, a second end of the eleventh capacitor, a second end of the twelfth capacitor and a second end of the thirteenth capacitor are grounded, a first end and a second end of the crystal oscillator are respectively connected with the wireless radio frequency chip, an output end of the wireless radio frequency chip is connected with an input end of the main control chip, a first end of the eighth capacitor and a first end of the tenth capacitor are connected with a receiving end of the main control chip, a second end of the eighth capacitor and a second end of the tenth capacitor are grounded, a first end of the seventh capacitor is connected with a voltage power supply, and a second end of the seventh capacitor and a first end of the twelfth resistor are connected with an output end of the main control chip, a second end of the twelfth resistor is grounded.
10. The light synchronization control system of claim 6, wherein the wireless remote control module comprises a wireless touch remote control or a wireless key remote control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811486057.1A CN111295005A (en) | 2018-12-06 | 2018-12-06 | Light synchronous control circuit and system based on zero-crossing detection |
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| CN201811486057.1A CN111295005A (en) | 2018-12-06 | 2018-12-06 | Light synchronous control circuit and system based on zero-crossing detection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111954357A (en) * | 2020-08-12 | 2020-11-17 | 烽火通信科技股份有限公司 | Time synchronization method and system for NB-IoT street lamp single lamp controller |
| CN112764456A (en) * | 2021-01-11 | 2021-05-07 | 厦门通士达照明有限公司 | Method, medium, and apparatus for synchronizing states of lighting devices |
-
2018
- 2018-12-06 CN CN201811486057.1A patent/CN111295005A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111954357A (en) * | 2020-08-12 | 2020-11-17 | 烽火通信科技股份有限公司 | Time synchronization method and system for NB-IoT street lamp single lamp controller |
| CN112764456A (en) * | 2021-01-11 | 2021-05-07 | 厦门通士达照明有限公司 | Method, medium, and apparatus for synchronizing states of lighting devices |
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