Lamp wall control system

Abstract

The invention discloses a lamp wall control system, which comprises a wall control switch K1, a wall control module and a carrier modulation module which are arranged on a wall control panel, and a main control chip U1, a load power supply and a driving module which are arranged on a main control board, and is characterized in that a mains supply L is electrically connected with the carrier modulation module through the wall control switch K1; the wall control module outputs a carrier signal to the carrier modulation module, and the carrier modulation module is used for modulating the carrier signal into a control signal; a mains supply L line supplies power to the load power supply through the carrier modulation module, the control signal is transmitted to the main control chip U1 through the load power supply by carrying the mains supply L line, and the main control chip U1 controls the driving module to work according to the control signal so as to drive a load; when the lamp is turned on, the range of the ratio of the period T0 of the carrier signal to the period T of the mains supply signal is 0.05-0.1; and when the lamp is turned on, the ratio range of the period T1 of the carrier signal to the period T of the mains supply signal is 0.1-0.21.

Description

Technical Field

[0001] The present invention relates to the technical field of lamp control, and in particular to a wall control system for lamps. Background Art

[0002] High-voltage lamp panels are generally driven by alternating current. The domestic alternating current specification is 20V / 50HZ, and most of the foreign alternating current specifications are 120V / 60HZ. When high-voltage lamp panels are wall-controlled and driven, a flashing phenomenon is likely to occur. The reason is that wall control generally controls the lamp panel by carrying a carrier signal on the power line. When adjusting the color temperature / brightness during the process of turning the lamp on and off and when the lamp is on, the carrier signal will occupy a certain period of the power signal, resulting in a decrease in the effective value of the driving voltage during this period, and thus a flashing phenomenon will occur, which brings inconvenience to the user's use. Summary of the Invention

[0003] An object of the present invention is to at least solve one of the technical problems existing in the prior art, and to provide a wall control system for lamps that avoids the occurrence of a flashing phenomenon.

[0004] The wall control system for lamps according to an embodiment of the present invention includes a wall control switch K1, a wall control module, and a carrier modulation module provided on a wall control panel, a main control chip U1, a load power supply, and a driving module provided on a main control board. The mains electricity L is electrically connected to the carrier modulation module through the wall control switch K1. The wall control module outputs a carrier signal to the carrier modulation module. The carrier modulation module is used to modulate the carrier signal into a control signal. The mains electricity L line supplies power to the load power supply through the carrier modulation module, and the control signal is transmitted to the main control chip U1 through the load power supply by carrying the mains electricity L line. The main control chip U1 controls the driving module to work to drive the load according to the control signal. When turning on the lamp, the ratio range of the period T0 of the carrier signal to the period T of the mains electricity signal is 0.05 - 0.1. When the lamp is on, the ratio range of the period T1 of the carrier signal to the period T of the mains electricity signal is 0.1 - 0.21.

[0005] The wall control system for lamps according to an embodiment of the present invention has at least the following beneficial effects: First, by adjusting the time occupied by the carrier signal carried on the mains electricity signal (i.e., adjusting the ratio of the period of the carrier signal to the period of the mains electricity signal), the effective value of the mains electricity when carrying the carrier signal is adjusted. When the ratio range of the period T0 of the carrier signal to the period T of the mains electricity signal is 0.05 - 0.1 when turning on the lamp and the ratio range of the period T1 of the carrier signal to the period T of the mains electricity signal is 0.1 - 0.21 when the lamp is on, the occurrence of a flashing phenomenon can be effectively avoided. There is no need to make complex adjustments to the circuit structure. It is only necessary to control the ratio of the period T0 of the carrier signal to the period T of the mains electricity signal, which is easy to control and saves costs.

[0006] Secondly, only the high-voltage L wire needs to be laid on the wall, and the N wire is laid on the ceiling. The wall control module outputs a carrier signal, and the carrier modulation module modulates this carrier signal into a control signal. The mains L wire supplies power to the load power supply through the carrier modulation module. The control signal is transmitted to the main control chip U1 through the mains L wire carried by the load power supply. After the main control chip U1 performs arithmetic analysis, the data to be executed is obtained, and corresponding instructions (such as controlling the rotation, forward and reverse rotation, speed of the fan, and the on and off instructions of the lamp) are sent to the drive module, so that the load (fan and / or lamp) works normally. That is, in addition to power supply, the L wire and the N wire can also carry a carrier. There is no need to lay the L wire on both the ceiling and the wall, avoiding the need to re-change the high-voltage power wiring for control, effectively improving the installation process, further saving costs, and facilitating application.

[0007] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The following further describes the specific embodiments of the present invention in conjunction with the drawings;

[0009] Figure 1 is the control block diagram of the lamp wall control system;

[0010] Figure 2 is the circuit schematic diagram of the wall control part;

[0011] Figure 3 is the circuit schematic diagram of the main control board;

[0012] Figure 4 is the waveform diagram of the carrier signal and the mains signal;

[0013] Figure 5 is the circuit schematic diagram of the LED lamp. SPECIFIC EMBODIMENTS

[0014] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.

[0015] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0016] In the description of the present invention, the meaning of "a number of" is one or more, the meaning of "a plurality of" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0017] Referring to Figures 1 to 5 , a wall control system for a lighting fixture according to the present invention includes a wall control switch K1, a wall control module 10, a wall control power supply 11, and a carrier modulation module 12 provided on a wall control panel, a main control chip U1, a load power supply 20, and a driving module provided on a main control board. The mains L is electrically connected to the carrier modulation module 12 through the wall control switch K1. The wall control module 10 outputs a carrier signal to the carrier modulation module 12, and the carrier modulation module 12 is configured to modulate the carrier signal into a control signal. The mains L supplies power to the load power supply 20 through the carrier modulation module 12, and the control signal is transmitted to the main control chip U1 through the load power supply 20 by riding on the mains L. The main control chip U1 controls the driving module to operate to drive the load according to the control signal. The mains N is respectively connected to the wall control power supply 11 and the load power supply 20. The wall control power supply 11 is used to convert the mains into a first working voltage (generally 5V) to supply power to the wall control module 10 and the carrier modulation module 12 respectively, and the load power supply 21 is used to convert the mains into a second working voltage (generally 5V) and a load working voltage (such as a motor driving voltage of 24V) to supply power to the corresponding main control chip U1 and the driving module. Both the wall control power supply 11 and the load power supply 20 adopt existing conventional power conversion circuits to convert the AC mains into a DC working voltage. Since the L line supplies power to the load power supply 20 through the wall control switch and the carrier modulation module 12, only the strong electricity L line needs to be laid on the wall and the N line needs to be laid on the ceiling. The wall control module 10 outputs a carrier signal, and the carrier modulation module 12 modulates the carrier signal into a control signal and outputs it to the main control chip U1. After the main control chip U1 performs arithmetic analysis, it obtains the data to be executed and issues corresponding instructions (such as controlling the fan to rotate, rotate forward and backward, adjust the speed, and controlling the lighting on and off instructions) to the driving module, so that the load (fan and / or lamp) operates normally. That is, in addition to power supply, the L line and the N line can also carry a carrier, eliminating the need to lay the L line on both the ceiling and the wall, avoiding reconfiguring the high-voltage power lines, effectively improving the installation process, saving costs, and facilitating application.

[0018] And by adjusting the time occupied by the carrier signal carried on the mains signal (i.e., adjusting the ratio of the period of the carrier signal to the period of the mains signal), the effective value when the mains carries the carrier signal is adjusted. When the light is turned on, the ratio range of the period T0 of the carrier signal to the period T of the mains signal is 0.05 - 0.1, and when the light is on, the ratio range of the period T1 of the carrier signal to the period T of the mains signal is 0.1 - 0.21, the appearance of the flash phenomenon can be effectively avoided. There is no need to make complex adjustments to the circuit structure. Only by controlling the ratio of the period T0 of the carrier signal to the period T of the mains signal can it be convenient to control and further save costs. To avoid signal loss, each piece of data is continuously sent twice, and the data can be repeatedly sent with a delay of 5 half-wave zero-crossing times.

[0019] Embodiment 1: For foreign applications, the mains is generally 110V / 60HZ. When the light is turned on, the period T0 of the carrier signal needs to be controlled within 0.8 - 1.6ms. At this time, there will be no flash phenomenon and the carrier effect is good. When the period T0 of the carrier signal exceeds 1.6ms, the flash phenomenon will occur. When performing control such as dimming and color temperature adjustment when the light is on, the period T0 of the carrier signal is controlled within 1.75 - 3.5ms and the carrier effect is good. When the period T0 of the carrier signal exceeds 3.5ms, the flash phenomenon will occur.

[0020] Embodiment 2: For domestic applications, the mains is generally 220V / 50HZ. When the light is turned on, the period T0 of the carrier signal needs to be controlled within 1 - 2ms. At this time, there will be no flash phenomenon and the carrier effect is good. When the period T0 of the carrier signal exceeds 2ms, the flash phenomenon will occur. When performing control such as dimming and color temperature adjustment when the light is on, the period T0 of the carrier signal is controlled within 2 - 4.2ms and the carrier effect is good. When the period T0 of the carrier signal exceeds 4.2ms, the flash phenomenon will occur.

[0021] As Figure 2 shown, the wall control module 10 includes a wall control chip U0 and a plurality of control buttons respectively electrically connected to the input end of the wall control chip U0, and the output end of the wall control chip U0 outputs the carrier signal. The carrier modulation module 12 includes a thyristor TR1, a resistor R1, a resistor R2, and an optocoupler U1. The carrier signal is input to the input end of the optocoupler U1. One end of the 1 terminal of the thyristor TR1 is electrically connected to the output end of the wall switch K1 and one end of the resistor R1 respectively. The other end of the resistor R1 is electrically connected to one input end of the optocoupler U1. One end of the 2 terminal of the thyristor TR1 is electrically connected to one end of the resistor R2 and the input end of the load power supply respectively to supply power, and the other end of the resistor R2 is electrically connected to the 3 terminal of the thyristor TR1 and the other output end of the optocoupler U1 respectively.

[0022] As Figure 3As shown, in some embodiments, a carrier receiving module 21 is provided on the main control board. The control signal is transmitted to the carrier receiving module 21 through the load power supply 20 by riding on the mains L line. The carrier receiving module is used to isolate the control signal and convert the control signal into a motor control signal and a dimming signal. The motor control signal and the dimming signal are respectively input into the main control chip U1. The carrier receiving module 21 includes a first receiving module 211 and a second receiving module 212. The first receiving module includes optocouplers U2 and U3. The control signal is input into the input terminals of optocoupler U2 and optocoupler U3 through the filter circuit of the load power supply by riding on the mains L line. The output terminals of optocoupler U2 and optocoupler U3 respectively output the motor control signal to the main control chip U1. The carrier receiving module 21 includes a second receiving module 212. The second receiving module is a thyristor dimming circuit. The control signal is input into the thyristor dimming circuit through the filter circuit of the load power supply by riding on the mains L line. The thyristor dimming circuit outputs a dimming signal to the main control chip U1.

[0023] In specific applications, there are 4 function keys for controlling the fan on the wall control panel: 0XA1 - 0XA4, corresponding to fan on / off, speed up, speed down, forward / reverse rotation of the fan; there are 4 LED light control keys: 0XA5 - 0XA8, corresponding to on / off the light, dimming up, dimming down, color temperature switching. When the wall control switch K1 is closed, multiple high-frequency carrier signals are used to control the emission of corresponding carrier signals through the control keys 0XA1 - 0XA8 on the wall panel; the L line is sent to the thyristor TR1 through the optocoupler U1. The thyristor TR1 conducts to output a control signal. The L line outputs an ACL-A signal to supply power to the load power supply 21 through the carrier modulation module 12, and the control signal rides on the ACL-A signal and is input into the carrier signal receiving module 21 through the filter circuit of the load power supply 21. The carrier receiving module is used to isolate the control signal and convert the control signal into a motor control signal ZB and a dimming signal lamp. The motor control signal and the dimming signal are respectively input into the main control chip U1.

[0024] Further, the carrier receiving module 21 includes a first receiving module 211. The first receiving module includes optocouplers U2 and U3. The control signal is input into the input terminals of optocoupler U2 and optocoupler U3 through the filter circuit of the load power supply by riding on the mains L line. The output terminals of optocoupler U2 and optocoupler U3 respectively output the motor control signal to the main control chip U1. The carrier receiving module 21 includes a second receiving module 212. The second receiving module is a thyristor dimming circuit. The control signal is input into the thyristor dimming circuit through the filter circuit of the load power supply by riding on the mains L line. The thyristor dimming circuit outputs a dimming signal to the main control chip U1.

[0025] Further, the driving module includes a motor driving module 22 for driving a fan and an LED driving module for driving an LED lamp.

[0026] In some embodiments, the load is a 24V DC fan motor and an LED lamp, and the driving circuit includes a motor driving circuit 22 and an LED driving module. The LED lamp and the LED driving module are as Figure 5 shown, and synchronous control of the fan and the LED lamp can be achieved.

[0027] Further, an alarm module 26 electrically connected to the main control chip U1 is further included, and the alarm module 26 can adopt a buzzer circuit as Figure 3 shown.

[0028] It is easily understood by those skilled in the art that, on the premise of no conflict, the above preferred modes can be freely combined and superimposed.

[0029] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the specification and drawings of the present invention under the inventive concept of the present invention, or directly or indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A wall control system for a lighting fixture, characterized in that, Including: A wall control switch K1, a wall control module (10) and a carrier modulation module (12) provided on a wall control panel. The mains power supply L is electrically connected to the carrier modulation module (12) via the wall control switch K1. The wall control module (10) outputs a carrier signal to the carrier modulation module (12), and the carrier modulation module (12) is used to modulate the carrier signal into a control signal; A main control chip U1, a load power supply (20) and a drive module provided on a main control board. The mains power supply L line supplies power to the load power supply (20) via the carrier modulation module (12), and the control signal is transmitted to the main control chip U1 through the load power supply (20) by riding on the mains power supply L line. The main control chip U1 controls the drive module to work to drive the load according to the control signal; When turning on the light, the ratio range of the period T0 of the carrier signal to the period T of the mains power signal is 0.05 to 0.1; When the light is on, the ratio range of the period T1 of the carrier signal to the period T of the mains power signal is 0.1 to 0.

21.

2. The luminaire wall control system according to claim 1, wherein: A wall control power supply (11) is further provided on the wall control panel, and the wall control power supply (11) is used to convert the mains power into a working voltage to supply power to the wall control module (10) and the carrier modulation module (12) respectively.

3. The luminaire wall control system according to claim 2, characterized in that: The wall control module (10) includes a wall control chip U0 and a plurality of control buttons respectively electrically connected to the input end of the wall control chip U0, and the output end of the wall control chip U0 outputs the carrier signal.

4. The wall control system for a lamp according to claim 1, characterized in that: The carrier modulation module (12) includes a thyristor TR1, a resistor R1, a resistor R2, and an optocoupler U1. The carrier signal is input to the input end of the optocoupler U1. One end of the thyristor TR1 is electrically connected to the output end of the wall control switch K1 and one end of the resistor R1 respectively. The other end of the resistor R1 is electrically connected to one input end of the optocoupler U1. The second end of the thyristor TR1 is electrically connected to one end of the resistor R2 and the input end of the load power supply respectively to supply power to, and the other end of the resistor R2 is electrically connected to the third end of the thyristor TR1 and the other output end of the optocoupler U1 respectively.

5. The luminaire wall control system according to claim 1, wherein: A carrier receiving module (21) is provided on the main control board. The control signal is transmitted to the carrier receiving module (21) through the load power supply (20) by riding on the mains power supply L line. The carrier receiving module is used to perform isolation processing on the control signal and convert the control signal into a motor control signal and a dimming signal, and the motor control signal and the dimming signal are respectively input to the main control chip U1.

6. The luminaire wall control system according to claim 5, characterized in that: The carrier receiving module (21) includes a first receiving module (211), and the first receiving module includes an optocoupler U2 and an optocoupler U3. The control signal is input to the input ends of the optocoupler U2 and the optocoupler U3 through the filter circuit of the load power supply by riding on the mains power supply L line. The output ends of the optocoupler U2 and the optocoupler U3 respectively output the motor control signal to the main control chip U1.

7. The lighting fixture wall control system according to claim 6, wherein: The carrier receiving module (21) includes a second receiving module (212). The second receiving module is a thyristor dimming circuit. The control signal is input into the thyristor dimming circuit after passing through the filter circuit of the load power supply via the mains L line, and the thyristor dimming circuit outputs a dimming signal to the main control chip U1.

8. The wall control system for a lamp according to claim 1, characterized in that: The driving module includes a motor driving module (22) for driving a fan and an LED driving module for driving an LED lamp.

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