Numerical control carrier light source for orchard light supplement and electric power system

Abstract

The utility model relates to the technical field of orchard light supplementing systems for agriculture, in particular to a numerical control carrier light source and electric power system for orchard light supplementing, which comprises a lamp socket joint, a light source drive and controller, a heat insulation plate, a support stud, an integrated light source radiator, heat-conducting glue, an integrated light source and a transparent protective shell, wherein the light source driving and controlling device receives and demodulates an external power line carrier signal, multiplexes a communication line and a power supply line, and generates a control signal for the integrated light source by using a return-to-zero code coding method, so that remote cluster control of a main control system on a numerical control light source module in a lamp group mounting area is realized; the integrated light source adjusts the light emitting mode and the light emitting brightness according to the control signal, and controllability of spectrum composition, light emitting intensity and light supplementing duration is achieved; and the transparent protective shell is arranged outside the integrated light source, so that the corrosion of environmental factors to the LED device is reduced, and the service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural orchard light supplement systems, and specifically provides a digitally controlled carrier light source and a power system for orchard light supplement. Background Art

[0002] my country is a major agricultural producer with rich fruit variety resources and a vast planting area. Current research shows that applying artificial lighting measures during the flowering, fruiting and fruit ripening periods of fruit trees can regulate the ripening time to a certain extent, significantly improve the quality of the fruit, promote the accumulation of fruit dry matter and the formation of flavor substances, and thus increase the market added value.

[0003] In terms of artificial lighting, current research at home and abroad is mainly focused on lighting in greenhouse facilities, and there are few studies on lighting systems for large outdoor orchards. At the same time, the light sources currently used are mainly conventional lighting LED bulbs or customized LED plant growth lights, and a small number of areas use incandescent lamps or fluorescent lamps. Such methods all have certain technical defects: incandescent lamps and fluorescent lamps have low efficiency and serious heat generation, and are on the verge of being eliminated; the spectral composition of conventional lighting LED bulbs is quite different from the physiological needs of plants, and the lighting effect is poor; customized LED plant growth lamps are mainly composed of multiple groups of LED chips with specific spectra, and their spectrum and luminous intensity cannot be modified after the product is finished or can only be adjusted in limited gears, making it difficult to adapt to the diverse lighting needs of orchards.

[0004] In terms of lighting system control, the main methods currently used are manual control, timer switch and "Internet of Things" remote control. Manual control is relatively extensive and labor-intensive; although the timer switch solves the defects of manual control, it cannot directly adjust the spectrum composition and luminous intensity; "Internet of Things" remote control is mainly suitable for greenhouse facilities. Wireless signal coverage cannot be guaranteed in large outdoor orchard scenes. Wired communication requires the laying of a large number of complex and expensive communication cables. The overall cost of the system is too high and difficult to apply in practice.

[0005] In addition, in terms of power supply, traditional LED lamps use non-isolated drive power supplies without PFC components, which have low power factors and large grid harmonic interference. When deployed in large quantities, they significantly reduce the effective capacity of the circuit and generate excessive harmonic interference, which is not conducive to the reliable operation of the system. In addition, non-isolated drivers have a high risk of leakage when operating outdoors, which can easily lead to safety hazards. Utility Model Content

[0006] In order to solve the above problems, the utility model provides a digitally controlled carrier light source and a power system for orchard supplementary lighting. A method of combining controllable spectrum LED and full-spectrum LED is adopted in the digitally controlled carrier light source, and a microcontroller chip is matched therewith. The power carrier technology is introduced into the control system to realize long-distance power carrier communication, thus avoiding the technical defects of the traditional Internet of Things wireless communication with a small coverage range and difficult wiring of wired communication.

[0007] In the first aspect, the utility model provides a numerically controlled carrier light source for orchard supplementary lighting, comprising a lamp socket connector, a light source driver and controller, a heat insulation board, a support stud, an integrated light source radiator, a thermal conductive adhesive, an integrated light source and a transparent protective shell; wherein the light source driver and controller is installed below the lamp socket connector, and is used to receive and demodulate an external power carrier signal through the lamp socket connector, and uses a return-to-zero code encoding method to generate a control signal for the integrated light source; the heat insulation board is located below the light source driver and controller, and the interior of the heat insulation board is filled and sealed with insulating silicone to isolate the heat generated by the integrated light source radiator; the integrated light source radiator is installed on the bottom of the heat insulation board through support studs to reduce the temperature of the integrated light source; the integrated light source is installed on the lower surface of the integrated light source radiator through thermal conductive adhesive, and the integrated light source adjusts the light emission mode and light emission brightness according to the control signal; the transparent protective shell is mechanically connected to the lower surface of the integrated light source radiator and covers the integrated light source, so that the transparent protective shell protects the integrated light source.

[0008] Furthermore, the light-emitting surface of the integrated light source is integrated with a full-spectrum LED module and a controllable spectrum LED module; wherein: the full-spectrum LED module includes no less than two full-spectrum LEDs; the controllable spectrum LED module includes no less than two controllable spectrum LED arrays, and the controllable spectrum LED arrays are connected in parallel; and the controllable spectrum LED array is controlled by a control signal, and the light-emitting mode and light-emitting brightness are adjusted according to the control signal; both the full-spectrum LED and the controllable spectrum LED array are annular structures, and are arranged alternately layer by layer along the center direction of the light-emitting surface.

[0009] Furthermore, the full-spectrum LED adopts a COB packaging method of a full-spectrum phosphor embedded structure, embeds the purple light excitation tube core in the full-spectrum phosphor, and directly manufactures a full-spectrum LED on the light-emitting surface.

[0010] Furthermore, the light source driver and controller internally integrates a carrier coupler, a carrier modem, a microcontroller, a power subsystem, a fuse and a power input port; wherein the power input port is electrically connected to the lamp socket connector; the signal output end of the carrier coupler is electrically connected to the AC input end of the power subsystem in parallel, and the carrier coupler is electrically connected to the power input port after being connected in series with the fuse; the carrier modem is electrically connected to the signal input end of the carrier coupler for demodulating the power carrier signal; the power subsystem simultaneously supplies power to the microcontroller, the carrier modem, the controllable spectrum LED module and the full-spectrum LED module; the microcontroller is electrically connected to the carrier modem for generating a control signal based on the demodulated power carrier signal received; the microcontroller is electrically connected to the controllable spectrum LED module for transmitting the control signal to the controllable spectrum LED module, thereby controlling the light-emitting mode and light-emitting brightness of the controllable spectrum LED module; the microcontroller is electrically connected to the power subsystem for controlling the output current of the power subsystem according to the control signal.

[0011] Furthermore, the power subsystem includes a main power supply, a control power supply and a constant current drive power supply; wherein the main power supply is electrically connected to the power input port through a fuse; the main power supply has two low-voltage DC outputs, wherein one low-voltage DC output is electrically connected to the controllable spectrum LED module through the +12V port of the power subsystem to provide working power for the controllable spectrum LED module; the other low-voltage DC output is electrically connected to the control power supply; the constant current drive power supply is connected in parallel with the constant current drive power supply, and the output end of the constant current drive power supply is electrically connected to the full-spectrum LED module through the LED+ port and the OV port of the power subsystem, so as to provide a DC working voltage to the full-spectrum LED module and stabilize the working current; the control power supply performs secondary voltage stabilization, and supplies power to the microcontroller and the carrier modem through the +3V3 port and the +5V port of the power subsystem respectively.

[0012] Furthermore, the carrier coupler includes a signal coupling capacitor, a voltage regulator, an impedance matching inductor and a coupling transformer; wherein the coupling capacitor is connected in series with the impedance matching inductor and then connected in series with the voltage regulator, so that the coupling capacitor, the voltage regulator and the impedance matching inductor form a three-point network; the coupling transformer has a primary winding and a secondary winding, and the primary winding and the secondary winding transmit signals and achieve electrical isolation through a magnetic coupling method; the primary winding is electrically connected to the carrier modem, and the secondary winding is connected in series with the impedance matching inductor and then connected in parallel with the voltage regulator; the coupling capacitor and the impedance matching inductor are connected in series to form a bandpass filter, which is used to reduce the low-frequency current recharge in the carrier coupler and improve the signal-to-noise ratio of the carrier modem.

[0013] Furthermore, the microcontroller is configured with 4 I / O interfaces; among them, two I / O interfaces are configured in bidirectional mode, which are used to be electrically connected to the carrier modem, so as to complete bidirectional data communication between the microcontroller and the carrier modem; one I / O interface is configured in output mode, which is electrically connected to the constant current drive power supply, and adopts the PWM communication method to control the output voltage and output current of the constant current drive power supply, so as to indirectly control the brightness of the full-spectrum LED module; the last I / O interface is configured in output mode, which is electrically connected to the controllable spectrum LED module, and adopts the return-to-zero code communication method to directly control the brightness and spectrum composition of the controllable spectrum LED module.

[0014] In the second aspect, the utility model also provides a digital carrier light source power system for orchard fill lighting, including a branch switch group, a main switch circuit breaker, a main control system, a wireless network adapter, a power supply line and a lamp group installation area, the lamp group installation area includes no less than two groups of digital carrier light source groups, each group of digital carrier light source groups includes no less than two digital carrier light sources for orchard fill lighting provided by the utility model; wherein the lamp group installation area is electrically connected to the branch switch group through the power supply line; the main switch circuit breaker and the main control system are jointly electrically connected to the branch switch group, and the main switch circuit breaker and the main control system cooperate to complete the control of the circuit connectivity of the branch switch group; the wireless network adapter is electrically connected to the main control system and communicates bidirectionally, so that the wireless network adapter receives external control information, and transmits the external control information to the main control system, and at the same time transmits the feedback information of the main control system to the outside.

[0015] Furthermore, the branch switch group includes branch switches, the number of which is consistent with the number of the digitally controlled carrier light source groups, and is used to control the digitally controlled carrier light source groups respectively.

[0016] Furthermore, the main control system includes a power carrier adapter and a main controller; wherein the main controller communicates bidirectionally with the wireless network adapter and the power carrier adapter to receive external control information, and through the power carrier adapter, using the power supply line as a channel, realizes long-distance communication and control of the CNC carrier light source.

[0017] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0018] 1) Using the power carrier communication method, a power carrier adapter is installed in the main control system to modulate the control signal to the power supply line, so as to realize the multiplexing of the communication line and the power supply line, reduce the cost and simplify the deployment process;

[0019] 2) The power subsystem uses a switching power transformer with an isolated circuit structure and an active PFC circuit, which reduces the harmonic interference to the power grid during device operation and improves the power factor. At the same time, it can effectively save line investment when deployed in large quantities and reduce the safety risk of leakage when used outdoors;

[0020] 3) The structure of thermal isolation between the light source driver and controller and the integrated light source radiator reduces the thermal impact of the light source operation heat dissipation on the light source driver and the internal electronic parts of the controller, thereby increasing their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional structural diagram of a digitally controlled carrier light source for orchard light supplement provided according to an embodiment of the utility model;

[0022] Figure 2 is a schematic diagram of the structure of an integrated light source provided according to an embodiment of the utility model;

[0023] Figure 3 It is a structural block diagram of a spectrum controllable LED provided according to an embodiment of the utility model;

[0024] Figure 4 It is a circuit principle diagram of a digitally controlled carrier light source for orchard supplementary lighting provided according to an embodiment of the utility model;

[0025] Figure 5 It is a circuit schematic diagram of a constant current driving power supply provided according to an embodiment of the utility model;

[0026] Figure 6 It is a structural block diagram of a power system provided according to an embodiment of the utility model.

[0027] Figure numerals: lamp socket connector 1, light source driver and controller 2, heat insulation board 3, support stud 4, integrated light source radiator 5, thermal conductive adhesive 6, integrated light source 7, transparent protective shell 8, full-spectrum LED module 9, controllable spectrum LED module 10, full-spectrum LED 11, controllable spectrum LED array 12, driver control chip 13, binding wire 14, light-emitting unit 15, red LED chip 16, green LED chip 17, blue LED chip 18, on-chip driver 19, on-chip controller 20, carrier coupler 21, carrier modem 22, microcontroller 23, power subsystem 24, fuse 25, power input port 2 6. Signal coupling capacitor 27, voltage regulator 28, impedance matching inductor 29, coupling transformer 30, main power supply 31, control power supply 32, constant current drive power supply 33, active PFC module 34, power driver 35, main transformer 36, rectifier filter module 37, auxiliary power supply module 38, feedback coupler 39, power supply controller 40, control signal input port 41, safety capacitor 42, shunt switch group 43, main switch circuit breaker 44, main control system 45, wireless network adapter 46, power supply line 47, lamp group installation area 48, CNC carrier light source 49, shunt switch 50, power carrier adapter 51, main controller 52. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and do not constitute a limitation of the utility model.

[0029] The power carrier networked orchard lighting system provided by the utility model adopts a method of combining controllable spectrum LED and full spectrum LED in the light source component, and is matched with a microcontroller chip; the power carrier technology is introduced into the control system to realize long-distance power carrier communication, avoiding the technical defects of the traditional Internet of Things wireless communication with a small coverage range and difficult wired communication wiring.

[0030] Figure 1 The cross-sectional structure of a digitally controlled carrier light source for orchard supplementary lighting provided according to an embodiment of the utility model is shown.

[0031] like Figure 1 As shown, the numerically controlled carrier light source for orchard supplementary lighting provided by the embodiment of the utility model includes a lamp socket connector 1, a light source driver and controller 2, a heat insulation board 3, a support stud 4, an integrated light source radiator 5, a thermal conductive adhesive 6, an integrated light source 7 and a transparent protective shell 8.

[0032] The light source driver and controller 2 is installed below the lamp socket connector 1 , and is used to receive and demodulate the external power carrier signal through the lamp socket connector 1 , and generate a control signal for the integrated light source 7 using a return-to-zero code encoding method.

[0033] The light source driver and controller 2 adopts a sealed structure and is filled with insulating silicone to achieve better waterproof and dustproof performance and aging resistance stability. The light source driver and controller 2 housing can be made of corrosion-resistant metal material after internal electrical insulation treatment to facilitate heat dissipation and increase the ability of the light source driver and controller 2 to resist external environmental erosion.

[0034] The heat insulation board 3 is located below the light source driver and controller 2 , and the interior of the heat insulation board 3 is filled and sealed with insulating silica gel, which is made of FR4 composite material in this embodiment to isolate the heat generated by the integrated light source radiator 5 .

[0035] The integrated light source heat sink 5 is installed at the bottom of the insulation board 3 through the support studs 4 to reduce the temperature of the integrated light source 7; the integrated light source 7 is installed on the lower surface of the integrated light source heat sink 5 through the thermal conductive adhesive 6, and the integrated light source 7 adjusts the light mode and light brightness according to the control signal.

[0036] In this specific embodiment, a group of the support studs 4 adopts a hollow structure so that the wires can pass through to realize the electrical connection between the light source driver and controller 2 and the integrated light source 7. The back surface of the integrated light source 7 and the lower surface of the integrated light source heat sink 5 are polished to reduce the gap when the two are in contact. The thermal conductive adhesive 6 is made of a high thermal conductivity material and minimizes the thickness while meeting the mechanical strength to reduce the thermal resistance from the integrated light source 7 to the integrated light source heat sink 5.

[0037] The transparent protective shell 8 is mechanically connected to the lower surface of the integrated light source heat sink 5 and covers the integrated light source 7, so that the transparent protective shell 8 protects the integrated light source 7 and prevents the integrated light source 7 from being corroded by moisture and dust in the environment.

[0038] Figure 2 A schematic structural diagram of an integrated light source provided according to an embodiment of the utility model is shown.

[0039] like Figure 2As shown, the light-emitting surface of the integrated light source 7 is integrated with a full-spectrum LED module 9 and a controllable spectrum LED module 10; wherein: the full-spectrum LED module 9 includes at least two full-spectrum LEDs 11; the controllable spectrum LED module 10 includes at least two controllable spectrum LED arrays 12, and the controllable spectrum LED arrays 12 are connected in parallel; and the controllable spectrum LED array 12 is controlled by a control signal, and the light-emitting mode and light-emitting brightness are adjusted according to the control signal; both the full-spectrum LED 11 and the controllable spectrum LED array 12 are annular structures. In this specific embodiment, the number of the full-spectrum LED 11 and the controllable spectrum LED array 12 are both 2, and they are arranged alternately layer by layer along the center direction of the light-emitting surface.

[0040] The full-spectrum LED 11 adopts a COB packaging method of a full-spectrum phosphor embedding structure, embeds the violet light excitation tube core in the full-spectrum phosphor, and directly manufactures the full-spectrum LED 11 on the light-emitting surface.

[0041] In this specific embodiment, the integrated light source 7 adopts an aluminum substrate or a copper substrate to improve the heat dissipation effect and reduce the thermal attenuation of the light source.

[0042] Figure 3 The structure of a spectrum controllable LED provided according to an embodiment of the utility model is shown.

[0043] A spectrum controllable LED array 12 includes at least two spectrum controllable LEDs. Figure 3 As shown, a controllable spectrum LED includes a driving control chip 13 , a binding wire 14 and a light-emitting unit 15 .

[0044] The binding wire 14 is used to realize the electrical connection between the driving control chip 13 and the light emitting unit 15 .

[0045] The light emitting unit 15 is composed of a red LED chip 16, a green LED chip 17 and a blue LED chip 18, which emit red, green and blue visible light respectively. The red LED chip 16, the green LED chip 17 and the blue LED chip 18 cooperate with each other under the control of the driving control chip 13 to realize the output of visible light with adjustable spectral composition.

[0046] The drive control chip 13 is composed of an on-chip driver 19 and an on-chip controller 20, which are electrically connected. The on-chip controller 20 is used to convert the digital signal from the microcontroller 23 into an RGB analog signal. The on-chip driver 19 amplifies the aforementioned RGB analog signal to drive the red LED chip 16, the green LED chip 17 and the blue LED chip 18 to emit light.

[0047] Figure 4The cross-sectional structure and circuit principle of a digitally controlled carrier light source for orchard supplementary lighting provided by an embodiment of the utility model are shown.

[0048] The circuit structure of the digitally controlled carrier light source for orchard supplementary lighting provided by the embodiment of the utility model is integrated on the light source driver and controller 2 by printed circuit board welding process, such as Figure 2 As shown, the circuit of the digitally controlled carrier light source for orchard supplementary lighting provided by the embodiment of the utility model includes a carrier coupler 21, a carrier modem 22, a microcontroller 23, a power subsystem 24, a fuse 25 and a power input port 26.

[0049] Among them, the power input port 26 is electrically connected to the lamp socket connector 1; the signal output end of the carrier coupler 21 is electrically connected to the AC input end of the power subsystem 24 in parallel, and the carrier coupler 21 is electrically connected to the power input port 26 after being connected in series with the fuse 25; the carrier modem 22 is electrically connected to the signal input end of the carrier coupler 21, and is used to demodulate the power carrier signal; the power subsystem 24 simultaneously supplies power to the microcontroller 23, the carrier modem 22, the controllable spectrum LED module 10 and the full spectrum LED module 9; the microcontroller 23 is electrically connected to the carrier modem 22, and is used to generate a control signal according to the demodulated power carrier signal received; the microcontroller 23 is electrically connected to the controllable spectrum LED module 10, and is used to transmit the control signal to the controllable spectrum LED module 10, thereby controlling the light-emitting mode and light-emitting brightness of the controllable spectrum LED module 10; the microcontroller 23 is electrically connected to the power subsystem 24, and is used to control the output current of the power subsystem 24 according to the control signal.

[0050] The carrier coupler 21 includes a signal coupling capacitor 27, a voltage regulator 28, an impedance matching inductor 29 and a coupling transformer 30. The coupling capacitor 27 is connected in series with the impedance matching inductor 29 and then connected in series with the voltage regulator 28, so that the coupling capacitor 27, the voltage regulator 28 and the impedance matching inductor 29 form a three-point network. Among them, the coupling capacitor 27 is used to filter out low-frequency components and couple the high-frequency carrier to enter the power supply line 47 through the power input port 26 to realize the transmission of the power carrier signal. The coupling transformer 30 has a primary winding and a secondary winding, and the primary winding and the secondary winding transmit signals and realize electrical isolation through a magnetic coupling method; the primary winding is electrically connected to the carrier modem 22, and the secondary winding is connected in series with the impedance matching inductor 29 and then connected in parallel with the voltage regulator 28; the coupling capacitor is connected in series with the impedance matching inductor 29 to form a bandpass filter, which is used to reduce the low-frequency current backflow in the carrier coupler 21 and improve the signal-to-noise ratio of the carrier modem 22.

[0051] In this specific embodiment, the voltage regulator tube 28 has forward and reverse voltage regulation values ​​with equal absolute values, which improves the signal symmetry and integrity of the carrier coupler 21 while ensuring the safe operation of the carrier coupler 21 and the carrier modem 22 .

[0052] The microcontroller 23 is configured with 4 I / O interfaces; among them, two I / O interfaces are configured in bidirectional mode, which are used to be electrically connected to the carrier modem 22, and are used to complete bidirectional data communication between the microcontroller 23 and the carrier modem 22; one I / O interface is configured in output mode, which is electrically connected to the constant current driving power supply 33 in the power subsystem 24, and adopts the PWM communication method to control the output voltage and output current of the constant current driving power supply 33, so as to indirectly control the brightness of the full-spectrum LED module 9; the last I / O interface is configured in output mode, which is electrically connected to the controllable spectrum LED module 10, and adopts the return-to-zero code communication method to directly control the brightness and spectrum composition of the controllable spectrum LED module 10.

[0053] In this specific embodiment, the power input port 26 has a protective grounding function, and its protective grounding is electrically connected to the housing of the light source driver and controller 2 and the integrated light source heat sink 5 respectively, for discharging abnormal leakage current to avoid leakage injury.

[0054] The power subsystem 24 includes a main power supply 31, a control power supply 32 and a constant current drive power supply 33; wherein the main power supply 31 is electrically connected to the power input port 26 through a fuse 25; the main power supply 31 has two low-voltage DC outputs, one of which is electrically connected to the controllable spectrum LED module 10 through the +12V port of the power subsystem 24 to provide working power for the controllable spectrum LED module 10; the other low-voltage DC output is electrically connected to the control power supply 32; the constant current drive power supply 33 is in parallel with the constant current drive power supply 33, and the output end of the constant current drive power supply 33 is electrically connected to the full-spectrum LED module 9 through the LED+ port and the OV port of the power subsystem 24, for providing a DC working voltage to the full-spectrum LED module 9 and stabilizing the working current; the control power supply 32 performs secondary voltage stabilization, and supplies power to the microcontroller 23 and the carrier modem 22 through the +3V3 port and the +5V port of the power subsystem 24 respectively.

[0055] The low potential side of the main power supply 31 and the control power supply 32 is connected to the working ground to maintain a stable potential relationship. The low potential side of the constant current driving power supply 33 is isolated from the working ground to achieve constant current driving of the full spectrum LED module 9.

[0056] Figure 3 The circuit principle of the constant current driving power supply provided according to the embodiment of the utility model is shown.

[0057] like Figure 3As shown, the constant current drive power supply 33 includes an active PFC module 34, a power driver 35, a main transformer 36, a rectifier and filter module 37, an auxiliary power supply module 38, a feedback coupler 39, a power supply controller 40, a control signal input port 41 and a safety capacitor 42.

[0058] The active PFC module 34 is used for power factor compensation and correction, and converts the input AC power into relatively stable high-voltage DC power. The active PFC module 34 is electrically connected to the power driver 35 .

[0059] The power driver 35 is electrically connected to the main transformer 36 and is used for converting high-voltage direct current into pulse alternating current and driving the main transformer 36 .

[0060] The main transformer 36 is used for voltage conversion, reducing the voltage of the pulsed alternating current for driving subsequent circuit components. The main transformer 36 has two secondary windings, one of which is electrically connected to the rectifier filter module 37 for main power output, and the other is electrically connected to the auxiliary power supply module 38 for auxiliary power supply. The auxiliary power supply module 38 is electrically connected to the power controller 40 for providing working power to the power controller 40. The rectifier filter module 37 is electrically connected to the power controller 40 for real-time feedback of the output current and port voltage of the rectifier filter module 37 to the power controller 40. At the same time, the power controller 40 is electrically connected to the input end of the feedback coupler 39, and the output end of the feedback coupler 39 is electrically connected to the power driver 35. The method is used to input a regulating signal to the power driver 35 to control its duty cycle and operating frequency. The feedback coupler 39 has sufficient electrical isolation capability, and can adopt photoelectric coupling, capacitive coupling or electromagnetic coupling methods. The control signal input port 41 is electrically connected to the power controller 40 for inputting the control signal from the microcontroller 23 into the power controller 40 to realize the control effect of the microcontroller 23 on the constant current drive power supply 33.

[0061] The safety capacitor 42 is connected in series between the thermal ground of the active PFC module 34 and the working ground of the power controller 40 to suppress high-frequency interference of the active PFC module 34 and the power driver 35 .

[0062] Figure 6 The structure of the power system provided according to the embodiment of the utility model is shown.

[0063] The utility model embodiment also provides a digitally controlled carrier light source power system for orchard lighting supplement, such as Figure 6As shown, it includes a branch switch group 43, a main switch circuit breaker 44, a main control system 45, a wireless network adapter 46, a power supply line 47 and a lamp group installation area 48. The lamp group installation area 48 includes no less than two groups of CNC carrier light source groups, and each group of CNC carrier light source groups includes no less than two CNC carrier light sources 49 for orchard fill lighting provided based on the embodiment of the utility model.

[0064] Among them, the lamp group installation area 48 is electrically connected to the branch switch group 43 through the power supply line 47; the main switch circuit breaker 44 and the main control system 45 are electrically connected to the branch switch group 43, and the main switch circuit breaker 44 and the main control system 45 cooperate to complete the control of the circuit connectivity of the branch switch group 43; the wireless network adapter 46 is electrically connected to the main control system 45 and communicates bidirectionally, so that the wireless network adapter 46 receives external control information and transmits the external control information to the main control system 45, and at the same time transmits the feedback information of the main control system 45 to the outside.

[0065] The branch switch group 43 includes branch switches 50 . The number of the branch switches 50 is consistent with the number of the digital-controlled carrier light source groups, and is used to control the digital-controlled carrier light source groups respectively.

[0066] The main control system 45 includes a power carrier adapter 51 and a main controller 52; wherein the main controller 52 communicates bidirectionally with the wireless network adapter 46 and the power carrier adapter 51, is used to receive external control information, and through the power carrier adapter 51, with the power supply line 47 as the channel, realizes long-distance communication and control of the CNC carrier light source 49.

[0067] In order to clearly describe in detail the digitally controlled carrier light source power system for orchard supplementary lighting provided by the embodiment of the utility model, the working process is provided here.

[0068] The working process of the digital control carrier light source power system for orchard supplementary lighting provided by the embodiment of the utility model includes a system deployment stage, a system startup stage and a system operation stage.

[0069] During the system deployment phase, the scope of the lamp group installation area 48 and the installation density of the numerical control carrier light source 49 therein are determined according to the orchard supplementary lighting needs. The lamp group installation area 48 has a connector that is compatible with the mechanical size and electrical performance of the aforementioned lamp socket connector 1. In terms of installation logic, the numerical control carrier light sources 49 in the lamp group installation area 48 are divided into multiple groups, and the numerical control carrier light sources 49 in each group are electrically connected in parallel, and each group is connected in series with the corresponding branch switch 50 in the branch switch group 43 through the power supply line 47. The branch switches 50 in the branch switch group 43 are in parallel and electrically connected to the main switch circuit breaker 44. In actual applications, each lamp group installation area 48 should have a corresponding main control system 45 for realizing power carrier communication and control with the numerical control carrier light source 49 in the lamp group installation area 48.

[0070] In the system startup phase, when the main switch breaker 44 and each branch switch 50 in the branch switch group 43 are closed, the digital control carrier light source 49 and the main control system 45 are powered on. The main controller 52 automatically executes the self-test program. If the self-test passes, the control program is automatically run to initialize the wireless network adapter 46 and the power carrier adapter 51, set the wireless network adapter 46 to the running state, and control the power carrier adapter 51 to send a startup instruction to the digital control carrier light source 49 in the light group installation area 48. After receiving the startup instruction, the digital control carrier light source 49 automatically performs self-test and initialization. At this time, the integrated light source 7 therein is in the off state, and the light source driver and controller 2 is in the waiting command state.

[0071] During the system operation stage, the user communicates with the wireless network adapter 46 through a networked mobile device, or directly performs setting operations on the main controller 52 to set the luminous intensity, spectral composition, luminous time and cycle of each group of digital control carrier light sources 49 in the light group installation area 48. After the setting is successful, the setting parameters are saved in the main controller 52. At the same time, the above setting parameters are modulated by the power carrier adapter 51 and transmitted to each digital control carrier light source 49 using the power supply line 47 as the transmission medium. The digital control carrier light source 49 cooperates with the carrier modem 22 through the carrier coupler 21 to decode the data instructions from the above power carrier adapter 51, and adjusts the operating state of the integrated light source 7 through the microcontroller 23 to emit visible light with light intensity, spectral composition and luminous time that meet the set requirements, thereby realizing the orchard fill light function.

[0072] This stage may occur many times in actual operation, and the user can change the parameter settings at any time as needed, or choose to reuse the parameters saved in the main controller 52. At this time, the operating status of each group of CNC carrier light sources 49 in the lamp group installation area 48 will also change accordingly.

[0073] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the utility model disclosure can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in the utility model can be achieved, and this document does not limit this.

[0074] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A digitally controlled carrier light source for orchard lighting, characterized in that: It includes a lamp socket connector, a light source driver and controller, a heat shield, a support stud, an integrated light source radiator, a thermal conductive adhesive, an integrated light source and a transparent protective shell; wherein, The light source driver and controller is installed below the lamp socket connector, and is used to receive and demodulate an external power carrier signal through the lamp socket connector, and generate a control signal for the integrated light source using a return-to-zero code encoding method; The heat insulation board is located below the light source driver and controller, and the interior of the heat insulation board is filled and sealed with insulating silica gel to isolate the heat generated by the integrated light source radiator; The integrated light source heat sink is installed at the bottom of the heat insulation board through the support studs to reduce the temperature of the integrated light source; The integrated light source is installed on the lower surface of the integrated light source heat sink through the thermal conductive adhesive, and the integrated light source adjusts the light emission mode and light emission brightness according to the control signal; The transparent protective shell is mechanically connected to the lower surface of the integrated light source heat sink and covers the integrated light source, so that the transparent protective shell protects the integrated light source.

2. The digitally controlled carrier light source according to claim 1, characterized in that: The light-emitting surface of the integrated light source is integrated with a full-spectrum LED module and a controllable-spectrum LED module; wherein: The full-spectrum LED module includes no less than two full-spectrum LEDs; The controllable spectrum LED module includes at least two controllable spectrum LED arrays, and the controllable spectrum LED arrays are connected in parallel; and the controllable spectrum LED arrays are controlled by the control signal, and the light emission mode and light emission brightness are adjusted according to the control signal; The full-spectrum LED and the controllable-spectrum LED array are both ring-shaped structures, and are alternately arranged layer by layer along the center direction of the light-emitting surface.

3. The digitally controlled carrier light source according to claim 2, characterized in that: The full-spectrum LED adopts a COB packaging method of a full-spectrum phosphor embedding structure, embeds the violet light excitation tube core in the full-spectrum phosphor, and directly manufactures the full-spectrum LED on the light-emitting surface.

4. The digitally controlled carrier light source according to claim 2, characterized in that: The light source driver and controller integrates a carrier coupler, a carrier modem, a microcontroller, a power subsystem, a fuse and a power input port; wherein, The power input port is electrically connected to the lamp socket connector; The signal output end of the carrier coupler is electrically connected in parallel with the mains input end of the power subsystem, and the carrier coupler is electrically connected to the power input port after being connected in series with the fuse; The carrier modem is electrically connected to the signal input terminal of the carrier coupler and is used to demodulate the power carrier signal; The power subsystem supplies power to the microcontroller, the carrier modem, the controllable spectrum LED module and the full spectrum LED module simultaneously; The microcontroller is electrically connected to the carrier modem, and is used to generate the control signal according to the received demodulated power carrier signal; the microcontroller is electrically connected to the controllable spectrum LED module, and is used to transmit the control signal to the controllable spectrum LED module, thereby controlling the light-emitting mode and light-emitting brightness of the controllable spectrum LED module; the microcontroller is electrically connected to the power subsystem, and is used to control the output current of the power subsystem according to the control signal.

5. The digitally controlled carrier light source according to claim 4, characterized in that: The power subsystem includes a main power supply, a control power supply and a constant current drive power supply; wherein, The main power supply is electrically connected to the power input port through the fuse; the main power supply has two low-voltage DC outputs, one of which is electrically connected to the controllable spectrum LED module through the +12V port of the power subsystem to provide working power for the controllable spectrum LED module; the other low-voltage DC output is electrically connected to the control power supply; The constant current driving power supply is in parallel with the constant current driving power supply, and the output end of the constant current driving power supply is electrically connected to the full-spectrum LED module through the LED+ port and the OV port of the power subsystem, so as to provide a DC operating voltage to the full-spectrum LED module and stabilize the operating current; The control power supply is subjected to secondary voltage stabilization, and supplies power to the microcontroller and the carrier modem through the +3V3 port and the +5V port of the power subsystem respectively.

6. The digitally controlled carrier light source according to claim 4, characterized in that: The carrier coupler includes a signal coupling capacitor, a voltage regulator, an impedance matching inductor and a coupling transformer; wherein the coupling capacitor is connected in series with the impedance matching inductor and then connected in series with the voltage regulator, so that the coupling capacitor, the voltage regulator and the impedance matching inductor form a three-point network; the coupling transformer has a primary winding and a secondary winding, and the primary winding and the secondary winding transmit signals and achieve electrical isolation through a magnetic coupling method; the primary winding is electrically connected to the carrier modem, and the secondary winding is connected in series with the impedance matching inductor and then connected in parallel with the voltage regulator; the coupling capacitor is connected in series with the impedance matching inductor to form a bandpass filter, which is used to reduce the low-frequency current re-injection in the carrier coupler and improve the signal-to-noise ratio of the carrier modem.

7. The digitally controlled carrier light source according to claim 5, characterized in that: The microcontroller is equipped with 4 I / O interfaces; wherein, Two I / O interfaces are configured in a bidirectional mode for electrical connection with the carrier modem and for completing bidirectional data communication between the microcontroller and the carrier modem; An I / O interface is configured as an output mode, is electrically connected to the constant current driving power supply, and uses a PWM communication method to control the output voltage and output current of the constant current driving power supply to indirectly control the brightness of the full-spectrum LED module; The last I / O interface is configured in output mode, electrically connected to the controllable spectrum LED module, and uses a return-to-zero code communication method to directly control the brightness and spectrum composition of the controllable spectrum LED module.

8. A digitally controlled carrier light source power system for orchard supplementary lighting, comprising a branch switch group, a main switch circuit breaker, a main control system, a wireless network adapter and a power supply line, characterized in that: It also includes at least two groups of digitally controlled carrier light source groups, each group of digitally controlled carrier light source groups includes at least two digitally controlled carrier light sources as described in any one of claims 1 to 7; wherein, The lamp group installation area is electrically connected to the branch switch group through the power supply line; The main switch circuit breaker and the main control system are electrically connected to the branch switch group, and the main switch circuit breaker and the main control system cooperate to complete the control of the circuit connectivity of the branch switch group; The wireless network adapter is electrically connected to the main control system and communicates bidirectionally, so that the wireless network adapter receives external control information and transmits the external control information to the main control system, and transmits feedback information of the main control system to the outside.

9. The digital control carrier light source power system according to claim 8, characterized in that: The branch switch group includes branch switches, the number of which is consistent with the number of the digital control carrier light source groups, and is used to control the digital control carrier light source groups respectively.

10. The digital control carrier light source power system according to claim 8, characterized in that: The main control system includes a power carrier adapter and a main controller; wherein the main controller communicates bidirectionally with the wireless network adapter and the power carrier adapter to receive the external control information, and through the power carrier adapter, using the power supply line as a channel, realizes long-distance communication and control of the digital control carrier light source.

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