Light emitting control circuit, light emitting circuit and light emitting control method

Abstract

The present application relates to the field of electronic circuit technology, and in particular to a light-emitting control circuit, a light-emitting circuit, and a light-emitting control method. The light-emitting control circuit is used to control the light-emitting component to emit light, and the light-emitting control circuit includes: a detection component for detecting the light intensity of at least two ends of the light-emitting component; a control unit, which is in communication with the detection component and is used to determine a first state or a second state based on the light intensity of at least two ends, wherein the first state is that the difference in the light intensity of the two ends is less than a designed difference threshold, and the second state is that the difference in the light intensity of the two ends is greater than or equal to the designed difference threshold; a driving unit and a switching component, wherein the switching component is electrically connected to the control unit; in the first state, the connection mode of the driving unit and the light-emitting component is maintained through the switching component; when the first state is switched to the second state, the connection mode of the driving unit and the light-emitting component is switched through the switching component.

Description

Technical Field

[0001] The present application relates to the technical field of electronic circuits, and in particular to a light-emitting control circuit, a light-emitting circuit, and a light-emitting control method. Background Art

[0002] With the widespread adoption of electricity, light-emitting devices have entered countless households, such as fluorescent lamps for lighting and ultraviolet lamps for sterilization and disinfection. Many fluorescent and ultraviolet lamps are straight-tube, double-ended lamps. These lamps often develop a blackening on one end after prolonged use or frequent cycling. This blackening may be caused by heating the lamp's electrodes, causing the tungsten material in the electrodes to sublime and then condense in the cooler tube; or by electron powder from the electrodes being sputtered and deposited on the lamp during use.

[0003] If one end of the lamp turns black, it will affect the luminous quality of the lamp, such as the lighting quality. If the lamp continues to be used for a long time, the luminous quality of the lamp will be further reduced and the service life of the lamp will be affected. Summary of the Invention

[0004] The purpose of this application is to solve at least one of the above-mentioned technical defects, and the following technical solution is proposed.

[0005] To solve the above technical problems, in a first aspect, the present application provides a light-emitting control circuit for controlling the light-emitting component to emit light, the light-emitting control circuit comprising:

[0006] A detection component, used to detect the light intensity at at least two ends of the light-emitting component;

[0007] a control unit, in communication with the detection component, configured to determine a first state or a second state based on the light intensities at the at least two ends, wherein the first state is when the difference in light intensities at the two ends is less than a designed difference threshold, and the second state is when the difference in light intensities at the two ends is greater than or equal to a designed difference threshold;

[0008] A driving unit and a switching component, wherein the switching component is electrically connected to the control unit; in the first state, the connection between the driving unit and the light-emitting component through the switching component is maintained; when the first state is switched to the second state, the connection between the driving unit and the light-emitting component through the switching component is switched.

[0009] Optionally, the light emitting assembly includes a first light emitting unit and a second light emitting unit connected in series in an optional manner;

[0010] The first end group of the driving unit is used to electrically connect to the first end and the second end of the first light-emitting unit in an optional manner through the switching component; the second end group of the driving unit is used to electrically connect to the first end and the second end of the second light-emitting unit in an optional manner through the switching component;

[0011] When the first state is switched to the second state, the way in which the driving unit is connected to each of the light-emitting units through the switching component is opposite to the way in which the driving unit is connected to each of the light-emitting units through the switching component in the first state before switching to the second state.

[0012] Optionally, in the first state before switching to the second state, the first end of the first light-emitting unit serves as the first end of the light-emitting assembly, and the first end of the second light-emitting unit serves as the second end of the light-emitting assembly;

[0013] When the first state is switched to the second state, the second end of the first light-emitting unit serves as the second end of the light-emitting assembly, and the second end of the second light-emitting unit serves as the first end of the light-emitting assembly.

[0014] Optionally, the switching component includes a first switching unit, a second switching unit, a third switching unit and a fourth switching unit;

[0015] The first end and the second end of the first end group of the driving unit are electrically connected to the fixed end of the first switching unit and the fixed end of the second switching unit respectively; the first optional end of the first switching unit and the first optional end of the second switching unit are electrically connected to the second end and the first end of the first end portion of the first light-emitting unit respectively;

[0016] The third end and the fourth end of the second end of the first light-emitting unit are electrically connected to the fourth end and the third end of the second end of the second light-emitting unit in an optional manner;

[0017] The first optional end of the third switching unit and the first optional end of the fourth switching unit are used to electrically connect to the first end and the second end of the first end of the second light-emitting unit respectively;

[0018] The fixed end of the third switching unit and the fixed end of the fourth switching unit are electrically connected to the third end and the fourth end of the second end group of the driving unit respectively.

[0019] Optionally, the switching component further includes: a fifth switching unit and a sixth switching unit;

[0020] The fourth end and the third end of the second end of the first light-emitting unit are electrically connected to the fixed end of the fifth switching unit and the fixed end of the sixth switching unit respectively;

[0021] The first optional end of the fifth switching unit and the first optional end of the sixth switching unit are electrically connected to the third end and the fourth end of the second end portion of the second light-emitting unit respectively.

[0022] Optionally, the switching component includes a first switching unit, a second switching unit, a third switching unit and a fourth switching unit;

[0023] The first end and the second end of the first end group of the driving unit are electrically connected to the fixed end of the first switching unit and the fixed end of the second switching unit respectively; the second optional end of the first switching unit and the second optional end of the second switching unit are electrically connected to the third end and the fourth end of the second end of the first light-emitting unit respectively;

[0024] The first end and the second end of the first end of the first light-emitting unit are electrically connected to the second end and the first end of the first end of the second light-emitting unit in an optional manner;

[0025] The second optional end of the third switching unit and the second optional end of the fourth switching unit are used to be electrically connected to the third end and the fourth end of the second end of the second light-emitting unit respectively;

[0026] The fixed end of the third switching unit and the fixed end of the fourth switching unit are electrically connected to the third end and the fourth end of the second end group of the driving unit respectively.

[0027] Optionally, the switching component further includes: a seventh switching unit and an eighth switching unit;

[0028] The first end and the second end of the first end portion of the first light-emitting unit are electrically connected to the fixed end of the seventh switching unit and the fixed end of the eighth switching unit respectively;

[0029] The second optional end of the seventh switching unit and the second optional end of the eighth switching unit are electrically connected to the second end and the first end of the first end portion of the second light-emitting unit respectively.

[0030] Optionally, the light-emitting component includes a first light-emitting end and a second light-emitting end relative to each other, and the detection component includes a first detection module and a second detection module, the first detection module is used to detect the light intensity of the first light-emitting end, and the second detection module is used to detect the light intensity of the second light-emitting end.

[0031] Optionally, a communication unit, the communication unit is electrically connected to the control unit, and the communication unit is further used to communicate with an external terminal;

[0032] The control unit is further configured to determine a third state based on the light intensity at the at least two ends; in the third state, send a first reminder signal to the communication unit so that the communication unit sends a reminder message to the terminal for reminding the user to replace the light-emitting component;

[0033] And / or the light emitting control circuit further includes:

[0034] an indicating unit, the indicating unit being electrically connected to the control unit;

[0035] The control unit is also used to determine a third state based on the light intensity of the at least two ends; in the third state, a second reminder signal is sent to the indication unit so that the indication unit emits sound indication information and / or light indication information to remind the user to replace the light-emitting component.

[0036] In a second aspect, the present application further provides a light-emitting circuit, comprising a light-emitting component and the light-emitting control circuit described in the embodiment of the first aspect of the present application.

[0037] In a third aspect, the present application further provides a light emitting control method, which is applied to the light emitting control circuit described in the embodiment of the first aspect of the present application, the method comprising:

[0038] detecting light intensity at at least two ends of the light-emitting component;

[0039] Determining a first state or a second state based on the light intensities of the at least two ends, wherein the first state is when a difference in the light intensities of the two ends is less than a designed difference threshold, and the second state is when a difference in the light intensities of the two ends is greater than or equal to a designed difference threshold;

[0040] In the first state, the driving unit is maintained in a connection manner with the light-emitting component via the switching component;

[0041] When the first state is switched to the second state, the connection mode between the driving unit and the light-emitting component via the switching component is switched.

[0042] The technical solutions provided in the embodiments of the present application can at least provide the following beneficial technical effects:

[0043] In an embodiment of the present application, the state of the light-emitting component, including the first state and the second state, can be automatically determined based on the light intensity detected at at least two ends of the light-emitting component, and the switching component can be automatically controlled to realize different electrical connection methods between the driving unit and the light-emitting component, so as to avoid the situation where the same end group of the driving unit drives a single end of the light-emitting component for a long time and causes single-end aging. Single-end aging refers to the situation where one end of the light-emitting component becomes too black, while the other end basically does not become black, causing the entire component to be scrapped. The same end group of the driving unit can alternately drive the two ends of the light-emitting component, so as to make the aging degree of the two ends of the light-emitting component as balanced as possible, thereby extending the life of the light-emitting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic diagram of the module structure of a light-emitting control circuit provided in an embodiment of the present application.

[0045] Figure 2 A schematic circuit structure diagram of the connection relationship between a driving unit, a switching component and a light-emitting component of a light-emitting control circuit provided in an embodiment of the present application when the light-emitting component is in a first state.

[0046] Figure 3 This is a circuit structure diagram of the connection relationship between a driving unit, a switching component and a light-emitting component of a light-emitting control circuit provided in an embodiment of the present application when the light-emitting component is in the second state.

[0047] Figure 4 This is a structural schematic diagram of the electrical connection relationship between the driving unit and the light-emitting component in the first state of the light-emitting component provided by an embodiment of the present application.

[0048] Figure 5 This is a structural diagram of the electrical connection relationship between the driving unit and the light-emitting component in the second state of the light-emitting component provided by an embodiment of the present application.

[0049] Figure 6 This is a schematic diagram of the specific structure of the connection relationship between the driving unit, the switching component and the light-emitting component provided in another embodiment of the present application.

[0050] Figure 7 A schematic diagram of the module structure of a light-emitting circuit provided in an embodiment of the present application.

[0051] Figure 8 A structural schematic diagram of a light emitting control method provided in an embodiment of the present application.

[0052] Reference numerals:

[0053] 10-light-emitting control circuit;

[0054] 11-control unit, 12-detection component, 13-drive unit, 14-switching component;

[0055] 21-first end portion of the light-emitting assembly, 22-second end portion of the light-emitting assembly;

[0056] 121-first detection module, 122-second detection module;

[0057] 111 - first end of the first light-emitting unit, 112 - second end of the first light-emitting unit, 113 - third end of the first light-emitting unit, 114 - fourth end of the first light-emitting unit;

[0058] 211 - first end of the second light-emitting unit, 212 - second end of the second light-emitting unit, 213 - third end of the second light-emitting unit, 214 - fourth end of the second light-emitting unit;

[0059] 1- first end of the drive unit, 2- second end of the drive unit, 3- third end of the drive unit, 4- fourth end of the drive unit;

[0060] J1-first switching unit, J2-second switching unit, J3-third switching unit, J4-fourth switching unit, J5-fifth switching unit, J6-sixth switching unit, J7-seventh switching unit, J8-eighth switching unit. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0062] See also Figure 1 、 Figure 2 and Figure 3 The embodiment of the present application provides a light emitting control circuit 10 for controlling the light emitting component 20 to emit light. The light emitting control circuit 10 includes a control unit 11, a detection component 12, a driving unit 13, and a switching component 14.

[0063] The detection component 12 is used to detect the light intensity at at least two ends of the light emitting component 20;

[0064] The control unit 11 is in communication with the detection component 12 and is configured to determine a first state or a second state based on the light intensity at at least two ends of the light emitting component 20, wherein the first state is when the difference in the light intensity at the two ends is less than a designed difference threshold, and the second state is when the difference in the light intensity at the two ends is greater than or equal to the designed difference threshold;

[0065] The driving unit 13 and the switching component 14 are electrically connected to the control unit 11; in the first state, the connection between the driving unit 13 and the light-emitting component 20 through the switching component 14 is maintained; when the first state is switched to the second state, the connection between the driving unit 13 and the light-emitting component 20 through the switching component 14 is switched.

[0066] Specifically, in the first state before switching to the second state, the connection between the driving unit 13 and the light-emitting component 20 is maintained through the switching component 14. At this time, the first end group of the driving unit 13 is electrically connected to the first end 21 of the light-emitting component 20 for electrical connection through the switching component 14, and the second end group of the driving unit 13 is electrically connected to the second end 22 of the light-emitting component 20 for electrical connection through the switching component 14; when the first state is switched to the second state, the first end group of the driving unit 13 is electrically connected to the second end 22 of the light-emitting component 20 through the switching component 14, and the second end group of the driving unit 13 is electrically connected to the first end 21 of the light-emitting component 20 through the switching component 14.

[0067] The light-emitting control circuit 10 of the present application can automatically determine the state of the light-emitting component 20, including the first state and the second state, based on the light intensity detected at at least two ends of the light-emitting component 20, and automatically control the switching component 14 to realize different electrical connection methods between the driving unit 13 and the light-emitting component 20, so as to avoid the situation where the same end group of the driving unit 13 drives a single end of the light-emitting component 20 for a long time, thereby avoiding the situation where single-ended aging occurs due to the same end group of the driving unit 13 driving a single end of the light-emitting component 20 for a long time. Single-ended aging refers to the situation where one end of the light-emitting component 20 becomes too black, while the other end basically does not become black, causing the entire component to be scrapped. The same end group of the driving unit 13 can alternately drive the two ends of the light-emitting component, so as to make the aging degree of the two ends of the light-emitting component 20 as balanced as possible, thereby extending the life of the light-emitting component.

[0068] The light emitting assembly 20 is configured to emit light. The light emitting assembly 20 includes a light emitting unit, or a first light emitting unit and a second light emitting unit connected in series in an optional manner. The specific type of the light emitting unit is not limited, and the light emitting unit may be a fluorescent lamp, an ultraviolet lamp, or the like.

[0069] The first light-emitting unit and the second light-emitting unit are connected in series in an optional manner, that is, there is no limitation on which end is selected for electrical connection. Specifically, if the first light-emitting unit includes a first end and a second end for electrical connection, the first end of the first light-emitting unit includes a first end 111 and a second end 112 for electrical connection, and the second end of the first light-emitting unit includes a third end 113 and a fourth end 114 for electrical connection. The second light-emitting unit includes a first end and a second end for electrical connection, the first end of the second light-emitting unit includes a first end 211 and a second end 212 for electrical connection, and the second end of the second light-emitting unit includes a third end 213 and a fourth end 214 for electrical connection. The light-emitting unit includes ends for electrical connection that are consistent with fluorescent lamps and ultraviolet lamps in the prior art. For example, in the prior art, the ultraviolet lamp includes four terminals for electrical connection, and this application will not describe them in detail.

[0070] The first end of the first light-emitting unit can be electrically connected to the first end of the second light-emitting unit to achieve series connection, or the first end of the first light-emitting unit can be electrically connected to the second end of the second light-emitting unit to achieve series connection, or the second end of the first light-emitting unit can be electrically connected to the first end of the second light-emitting unit to achieve series connection, or the second end of the first light-emitting unit can be electrically connected to the second end of the second light-emitting unit to achieve series connection. The specific method of selecting series connection is not limited.

[0071] The light-emitting component 20 includes a first light-emitting end and a second light-emitting end. Optionally, the first light-emitting end is arranged opposite to the second light-emitting end. In the present application, the light-emitting portion of the light-emitting component 20 is long and has opposite ends. If there are two light-emitting units, and the light-emitting units are ultraviolet lamps, the two light-emitting units are arranged side by side, that is, approximately parallel or parallel, one end of the light-emitting unit is the first light-emitting end of the light-emitting component 20, and the other end of the light-emitting unit is the second light-emitting end of the light-emitting component 20. The detection component 12 is used to detect the light intensity of the first light-emitting end and the light intensity of the second light-emitting end.

[0072] The specific type of detection component 12 is not limited, as long as it can detect light intensity. Optionally, the detection component 12 includes a light intensity sensor. The detection component 12 can detect the intensity of a single light source, such as ultraviolet light, or it can detect the intensity of all light sources. The type of light detected by the detection component 12 can match the type of light emitted by the light-emitting component 20. If the light-emitting unit of the light-emitting component 20 is a UV lamp, the detection component 12 can detect the intensity of the UV light.

[0073] Optionally, the detection component 12 includes a first detection module 121 and a second detection module 122 , wherein the first detection module 121 is used to detect the light intensity of the first light-emitting end, and the second detection module 122 is used to detect the light intensity of the second light-emitting end.

[0074] The control unit 11 may be a control chip. The control unit 11 may determine the first state or the second state based on the light intensity at at least two ends. Specifically, the control unit 11 determines the first state or the second state of the light-emitting assembly 20 based on the light intensity at the first light-emitting end and the light intensity at the second light-emitting end. Specifically, if the difference in light intensity at the two ends of the light-emitting assembly 20 is less than a designed difference threshold, the control unit 11 determines that the light-emitting assembly 20 is in the first state. If the difference in light intensity at the two ends of the light-emitting assembly 20 is greater than or equal to the designed difference threshold, the control unit 11 determines that the light-emitting assembly 20 is in the second state. Specifically, if the light-emitting assembly 20 is in the first state when it is first used, the control unit 11 may determine that the light-emitting assembly 20 is in the first state, the light-emitting assembly 20 switches from the first state to the second state, the light-emitting assembly switches from the second state to the first state, and the light-emitting assembly 20 switches from the first state to the second state again. Alternatively, if the light intensity at either end is less than the designed intensity threshold, the control unit 11 determines that the light-emitting assembly 20 is in the third state.

[0075] In the first state, the driving unit 13 maintains its connection with the light-emitting assembly 20 via the switching assembly 14. Specifically, when the light-emitting assembly 20 is used for the first time, the driving unit 13 is connected to the light-emitting assembly 20 via the switching assembly 14 in the first connection mode. The control unit 11 determines the first state and maintains the driving unit 13 in the first connection mode with the light-emitting assembly 20 via the switching assembly 14. The first state can be when the difference between the light intensity at the first light-emitting end and the light intensity at the second light-emitting end is less than a designed difference threshold.

[0076] When the first state is switched to the second state, the connection mode between the driving unit 13 and the light-emitting assembly 20 is switched via the switching assembly 14. Specifically, if the driving unit 13 is connected to the light-emitting assembly 20 in the second connection mode via the switching assembly 14, the switch from the first state to the second state can be when the difference between the light intensity at the first light-emitting end and the light intensity at the second light-emitting end exceeds a designed difference threshold. In this case, the light intensity at the first light-emitting end can be greater than the light intensity at the second light-emitting end.

[0077] During use, since the connection mode between the driving unit 13 and the light emitting assembly 20 has been switched via the switching assembly 14, the light intensity of the first light emitting end portion and the light intensity of the second light emitting end portion will gradually become consistent until the difference between the light intensity of the first light emitting end portion and the light intensity of the second light emitting end portion is again less than the designed difference threshold, that is, the state of the light emitting assembly 20 is switched from the second state to the first state.

[0078] The control unit 11 determines that the second state is switched to the first state, that is, the light emitting component 20 is in the first state, and maintains the second connection mode between the driving unit 13 and the light emitting component 20 through the switching component 14 .

[0079] As the light-emitting component 20 continues to be used, the light intensity of the first light-emitting end and the light intensity of the second light-emitting end will gradually balance. If it is continued to be used, the light intensity of the first light-emitting end will be less than the light intensity of the second light-emitting end. The difference between the light intensity of the second light-emitting end and the light intensity of the first light-emitting end is greater than the designed difference threshold, and the state of the light-emitting component 20 is switched from the first state to the second state.

[0080] The control unit 11 determines that the first state is switched to the second state, and switches the connection mode between the driving unit 13 and the light emitting component 20 via the switching component 14. Specifically, the driving unit 13 is connected to the light emitting component 20 via the switching component 14 in the first connection mode.

[0081] The subsequent switching of the connection mode between the driving unit and the light-emitting component through the switching component is not described in detail in this application. It satisfies the requirement that in the first state, the connection mode between the driving unit 13 and the light-emitting component 20 is maintained through the switching component 14; when the first state is switched to the second state, the connection mode between the driving unit and the light-emitting component is switched through the switching component.

[0082] In one embodiment, in the first state before switching to the second state, the connection between the driving unit 13 and the light-emitting component 20 is maintained through the switching component 14. At this time, the control unit 11 controls the switching component 14 so that the first end group of the driving unit 13 is electrically connected to the first end 21 of the light-emitting component 20 through the switching component 14, and controls the switching component 14 so that the second end group of the driving unit 13 is electrically connected to the second end 22 of the light-emitting component 20 through the switching component 14.

[0083] When the first state is switched to the second state, the control unit 11 controls the switching component 14 so that the first end group of the driving unit 13 is electrically connected to the second end 22 of the light-emitting component 20 through the switching component 14, and controls the switching component 14 so that the second end group of the driving unit 13 is electrically connected to the first end 21 of the light-emitting component 20 through the switching component 14.

[0084] In the third state, the control unit 11 may issue a prompt message for prompting to replace the light emitting assembly 20 or the light emitting unit. It is understood that in the third state, the light emitting assembly 20 is also in the first state or the second state, and the light emitting assembly 20 can continue to emit light.

[0085] Please also refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The driving unit 13 is used to drive the light-emitting assembly 20 to emit light. Optionally, the driving unit 13 may include a ballast, such as an electronic ballast. The first and second end groups of the driving unit 13 are used to electrically connect to the light-emitting assembly 20. The first end group includes a first end 1 and a second end 2 for electrical connection, and the second end group includes a third end 3 and a fourth end 4 for electrical connection. The first end 1, second end 2, third end 3, and fourth end 4 of the driving unit 13 are collectively used to drive the light-emitting assembly 20 to emit light. It will be understood that the driving unit 13 also includes a power input terminal, which is used to electrically connect to an external power source. Specifically, the power input terminal includes a neutral terminal and a live terminal. The neutral terminal is used to connect to the neutral wire, and the live terminal is used to connect to the live wire. Alternatively, the live wire terminal can be electrically connected to the live wire via a switch unit (not shown). The switch unit can be electrically connected to the control unit 11. The control unit 11 controls the on and off of the switch unit to control whether the driving unit inputs current and thus controls whether the driving unit 13 drives the light-emitting assembly 20 to operate. The switch unit can be a relay.

[0086] Optionally, the first end group of the driving unit 13 is used to electrically connect to the first end and the second end of the first light-emitting unit in an optional manner through the switching component 14; the second end group of the driving unit 13 is used to electrically connect to the first end and the second end of the second light-emitting unit in an optional manner through the switching component 14.

[0087] Specifically, the first end group of the driving unit 13 is used to electrically connect to one of the first end and the second end of the first light-emitting unit through the switching component 14, and the second end group of the driving unit 13 is used to electrically connect to one of the first end or the second end of the second light-emitting unit through the switching component 14. The end of the first light-emitting unit that is not electrically connected to the first end group of the driving unit 13 is electrically connected to the end of the second light-emitting unit that is not electrically connected to the second end group of the driving unit 13, so as to realize the series connection of the first light-emitting unit and the second light-emitting unit.

[0088] Specifically, for example, the first end group of the driving unit 13 is used to electrically connect to the first end of the first light-emitting unit through the switching component 14, and the second end of the first light-emitting unit is electrically connected to the second end of the second light-emitting unit. The second end group of the driving unit 13 is used to electrically connect to the first end of the second light-emitting unit through the switching component 14. It can be understood that the specific connection method between each end for electrical connection of each end group of the first light-emitting unit and the end for electrical connection of each unit of the second light-emitting unit is not limited, and one end can be connected to another end. For example, the third end 113 of the second end of the first light-emitting unit is electrically connected to the fourth end 214 of the second end of the second light-emitting unit, and the fourth end 114 of the second end of the first light-emitting unit is electrically connected to the third end 213 of the second end of the second light-emitting unit.

[0089] In the embodiment of the present application, when the first state is switched to the second state, the connection method between the driving unit and each light-emitting unit through the switching component is opposite to the connection method between the driving unit and each light-emitting unit through the switching component in the first state before switching to the second state. This avoids the situation where the same end group of the driving unit drives a single end of a light-emitting unit for a long time, causing single-end aging.

[0090] Specifically, in the first state before switching to the second state, the first end of the first light-emitting unit is electrically connected to the first end group of the driving unit 13, and the second end of the first light-emitting unit is electrically connected to the second end group of the driving unit 13; when the first state is switched to the second state, the first end of the first light-emitting unit (through the second light-emitting unit) is electrically connected to the second end group of the driving unit 13, and the second end of the first light-emitting unit is electrically connected to the first end group of the driving unit 13.

[0091] For example, in the first state before switching to the second state, the first end of the second light-emitting unit is electrically connected to the second end group of the driving unit 13, and the second end of the second light-emitting unit is electrically connected to the first end group of the driving unit 13 (through the first light-emitting unit); when the first state is switched to the second state, the first end of the second light-emitting unit is electrically connected to the first end group of the driving unit 13 (through the first light-emitting unit), and the second end 1 of the second light-emitting unit is electrically connected to the second end group of the driving unit 13.

[0092] Optionally, in the embodiment of the present application, in the first state before switching to the second state, the driving unit 13 is maintained in the connection mode with the light-emitting assembly 20 via the switching component 14. In this case, the first end of the first light-emitting unit serves as the first end 21 of the light-emitting assembly 20, and the first end of the second light-emitting unit serves as the second end 22 of the light-emitting assembly 20. That is, the control unit 11 controls the switching component 14 to electrically connect the first end group of the driving unit 13 to the first end of the first light-emitting unit, the second end group of the driving unit 13 to the first end of the second light-emitting unit, and the second end of the first light-emitting unit to the second end of the second light-emitting unit.

[0093] When the first state is subsequently switched to the second state, the second end of the first light-emitting unit serves as the second end 22 of the light-emitting assembly 20, and the second end of the second light-emitting unit serves as the first end 21 of the light-emitting assembly 20. That is, in the second state, the control unit 11 controls the switching component 14 to electrically connect the first end group of the driving unit 13 to the second end of the first light-emitting unit, the second end group of the driving unit 13 to the second end of the second light-emitting unit, and the first end of the first light-emitting unit to the first end of the second light-emitting unit.

[0094] The switching component 14 is used to accept the control of the control unit 11, thereby completing the switching of the circuit. The type of the switching component 14 is not limited in this application, and the switching component 14 can be a relay type. Optionally, in an embodiment of the present application, the switching component 14 includes eight switching units, namely the first switching unit J1, the second switching unit J2, the third switching unit J3, the fourth switching unit J4, the fifth switching unit J5, the sixth switching unit J6, the seventh switching unit J7 and the eighth switching unit J8. One or more switching units can be integrated together, such as each switching unit can be a separate relay, or multiple switching units can be integrated together, and multiple switching units can be integrated into a separate relay. Each switching unit includes a fixed end, a first optional end and a second optional end. In one state, the fixed end is electrically connected to the first optional end, and in another state, the fixed end is electrically connected to the second optional end. Optionally, the first optional end of the switching unit is a normally closed end, and the second optional end of the switching unit is a normally open end. Optionally, in one embodiment of the present application, in the first state before switching to the second state, the driving unit 13 is maintained in a connection manner with the light-emitting component 20 via the switching component 14. At this time, the fixed end of each switching unit is electrically connected to the first optional end of the switching unit, and when the first state is switched to the second state, the fixed end of each switching unit is electrically connected to the second optional end of the switching unit. It can be understood that each switching unit or the relay integrated with multiple control units 11 includes a control end (not shown in the figure), and the control end of each control unit 11 is electrically connected to the control unit 11 to receive control of the control end, thereby changing the electrical connection manner between the fixed end and the optional end.

[0095] Optionally, in the first state before switching to the second state, the connection between the driving unit 13 and the light-emitting component 20 is maintained through the switching component 14. At this time, the first end 1 and the second end 2 of the first end group of the driving unit 13 are electrically connected to the fixed end of the first switching unit J1 and the fixed end of the second switching unit J2; the first optional end of the first switching unit J1 and the first optional end of the second switching unit J2 are electrically connected to the second end 112 and the first end 111 of the first end of the first light-emitting unit; the third end 113 and the fourth end 114 of the second end of the first light-emitting unit are electrically connected to the fourth end 214 and the third end 213 of the second end of the second light-emitting unit in an optional manner; the first optional end of the third switching unit J3 and the first optional end of the fourth switching unit J4 are used to electrically connect to the first end 211 and the second end 212 of the first end of the second light-emitting unit; the fixed end of the third switching unit J3 and the fixed end of the fourth switching unit J4 are electrically connected to the third end 3 and the fourth end 4 of the second end group of the driving unit 13. Among them, the fourth end 114 and the third end 113 of the second end of the first light-emitting unit are electrically connected to the fixed end of the fifth switching unit J5 and the fixed end of the sixth switching unit J6; the first optional end of the fifth switching unit J5 and the first optional end of the sixth switching unit J6 are electrically connected to the third end 213 and the fourth end 214 of the second end of the second light-emitting unit.

[0096] Optionally, when the first state is switched to the second state, the first end 1 and the second end 2 of the first end group of the driving unit 13 are electrically connected to the fixed end of the first switching unit J1 and the fixed end of the second switching unit J2; the second optional end of the first switching unit J1 and the second optional end of the second switching unit J2 are electrically connected to the third end 113 and the fourth end 114 of the second end of the first light-emitting unit; the first end 111 and the second end 112 of the first end of the first light-emitting unit are electrically connected to the second end 212 and the first end 211 of the first end of the second light-emitting unit in an optional manner; the second optional end of the third switching unit J3 and the second optional end of the fourth switching unit J4 are used to electrically connect to the third end 213 and the fourth end 214 of the second end of the second light-emitting unit; the fixed end of the third switching unit J3 and the fixed end of the fourth switching unit J4 are electrically connected to the third end 3 and the fourth end 4 of the second end group of the driving unit 13. Among them, the first end 111 and the second end 112 of the first end of the first light-emitting unit are electrically connected to the fixed end of the seventh switching unit J7 and the fixed end of the eighth switching unit J8; the second optional end of the seventh switching unit J7 and the second optional end of the eighth switching unit J8 are electrically connected to the second end 212 and the first end 211 of the first end of the second light-emitting unit.

[0097] Specifically, the fixed end of the first switching unit J1 is electrically connected to the first end 1 of the first end group of the driving unit 13; the first optional end of the first switching unit J1 is electrically connected to the second end 112 of the first end of the first light-emitting unit; the second optional end of the first switching unit J1 is electrically connected to the third end 113 of the second end of the first light-emitting unit.

[0098] The fixed end of the second switching unit J2 is electrically connected to the second end 2 of the first end group of the driving unit 13; the first optional end of the second switching unit J2 is electrically connected to the first end 111 of the first end of the first light-emitting unit; the second optional end of the second switching unit J2 is electrically connected to the fourth end 114 of the second end of the first light-emitting unit.

[0099] The fixed end of the third switching unit J3 is electrically connected to the third end 3 of the second end group of the driving unit 13; the first optional end of the third switching unit J3 is electrically connected to the first end 211 of the first end of the second light-emitting unit; the second optional end of the third switching unit J3 is electrically connected to the third end 213 of the second end of the second light-emitting unit.

[0100] The fixed end of the fourth switching unit J4 is electrically connected to the fourth end 4 of the second end group of the driving unit 13; the first optional end of the fourth switching unit J4 is electrically connected to the second end 212 of the first end of the second light-emitting unit; the second optional end of the fourth switching unit J4 is electrically connected to the fourth end 214 of the second end of the second light-emitting unit.

[0101] The fixed end of the fifth switching unit J5 is electrically connected to the fourth end 114 of the second end of the first light-emitting unit; the first optional end of the fifth switching unit J5 is electrically connected to the third end 213 of the second end of the second light-emitting unit; the second optional end of the fifth switching unit J5 is suspended, that is, not electrically connected to other components.

[0102] The fixed end of the sixth switching unit J6 is electrically connected to the third end 113 of the second end of the first light-emitting unit; the first optional end of the sixth switching unit J6 is electrically connected to the fourth end 214 of the second end of the second light-emitting unit; the second optional end of the sixth switching unit J6 is suspended, that is, not electrically connected to other components.

[0103] The fixed end of the seventh switching unit J7 is electrically connected to the first end 111 of the first end of the first light-emitting unit; the first optional end of the seventh switching unit J7 is suspended, that is, it is not electrically connected to other components; the second optional end of the seventh switching unit J7 is electrically connected to the second end 212 of the first end of the second light-emitting unit.

[0104] The fixed end of the eighth switching unit J8 is electrically connected to the second end 112 of the first end of the first light-emitting unit; the first optional end of the eighth switching unit J8 is suspended, that is, not electrically connected to other components; the second optional end of the eighth switching unit J8 is electrically connected to the first end 211 of the first end of the second light-emitting unit.

[0105] In this embodiment, when in use, if the light-emitting component 20 is in the first state before switching to the second state, the driving unit 13 is maintained in a connection manner with the light-emitting component 20 through the switching component 14. At this time, the fixed end of each switching unit is electrically connected to the first optional end of the switching unit, then the first end group of the driving unit 13 is electrically connected to the first end of the first light-emitting unit through the switching component 14, and the second end group of the driving unit 13 is electrically connected to the first end of the second light-emitting unit through the switching component 14; the second end of the first light-emitting unit is electrically connected to the second end of the second light-emitting unit through the switching component 14.

[0106] When the first state switches to the second state, the fixed end of each switching unit is electrically connected to the second optional end of the switching unit. The first end group of the driving unit 13 is electrically connected to the second end of the first light-emitting unit via the switching assembly 14, and the second end group of the driving unit 13 is electrically connected to the second end of the second light-emitting unit via the switching assembly 14. The first end of the first light-emitting unit is electrically connected to the first end of the second light-emitting unit via the switching assembly 14. Thus, compared to the first state, the second state achieves switching of each light-emitting unit, preventing single-end aging due to long-term use of the light-emitting unit and extending the life of the light-emitting assembly 20.

[0107] Optionally, the light emitting control circuit 10 further includes a communication unit, which is electrically connected to the control unit 11 and is also used for communication connection with an external terminal.

[0108] The control unit 11 is also used to determine a third state based on the light intensity of at least two ends; in the third state, a first reminder signal is sent to the communication unit so that the communication unit sends a reminder message to the terminal to remind the user to replace the light-emitting component 20.

[0109] The communication unit may be a wireless module to achieve communication connection with the terminal.

[0110] Optionally, the light emitting control circuit 10 further includes:

[0111] The indicator unit is electrically connected to the control unit 11. The control unit 11 is further configured to determine a third state based on the light intensity at at least two ends; in the third state, send a second reminder signal to the indicator unit, causing the indicator unit to emit an audible and / or optical indication to remind the user to replace the light-emitting assembly 20.

[0112] The indicating unit may include a speaker or a three-color light or other devices for prompting. It is understood that there may be only one of the communication unit and the indicating unit, or both of them may exist at the same time.

[0113] See also Figure 6 Alternatively, in one embodiment, the light emitting assembly 20 includes only one light emitting unit, such as only the first light emitting unit. The first end of the first light emitting unit serves as the first end 21 of the light emitting assembly 20 , and the second end of the first light emitting unit serves as the second end 22 of the light emitting assembly 20 .

[0114] In one embodiment, in the first state before switching to the second state, the driving unit 13 is maintained in a connection manner with the light-emitting component 20 via the switching component 14. At this time, the first end group of the driving unit 13 is electrically connected to the first end of the first light-emitting unit via the switching component 14, and the second end group of the driving unit 13 is electrically connected to the second end of the first light-emitting unit via the switching component 14. When the first state is switched to the second state, the first end group of the driving unit 13 is electrically connected to the second end of the first light-emitting unit via the switching component 14, and the second end group of the driving unit 13 is electrically connected to the first end of the first light-emitting unit via the switching component 14. The subsequent switching of the connection manner is not further described in detail in the embodiment of the present application. In the first state, the driving unit 13 is maintained in a connection manner with the light-emitting component 20 via the switching component 14. When the first state is switched to the second state, the driving unit 13 is switched in a connection manner with the light-emitting component 20 via the switching component 14.

[0115] If the light emitting assembly 20 only includes the first light emitting unit, the switching assembly 14 only needs to include four switching units, namely the first switching unit J1 , the second switching unit J2 , the third switching unit J3 and the fourth switching unit J4 .

[0116] The fixed end of the first switching unit J1 is electrically connected to the first end 1 of the first end group of the driving unit 13; the first optional end of the first switching unit J1 is electrically connected to the second end 112 of the first end of the first light-emitting unit; the second optional end of the first switching unit J1 is electrically connected to the third end 113 of the second end of the first light-emitting unit.

[0117] The fixed end of the second switching unit J2 is electrically connected to the second end 2 of the first end group of the driving unit 13; the first optional end of the second switching unit J2 is electrically connected to the first end 111 of the first end of the first light-emitting unit; the second optional end of the second switching unit J2 is electrically connected to the fourth end 114 of the second end of the first light-emitting unit.

[0118] The fixed end of the third switching unit J3 is electrically connected to the third end 3 of the second end group of the driving unit 13; the first optional end of the third switching unit J3 is electrically connected to the fourth end 114 of the second end of the first light-emitting unit; the second optional end of the third switching unit J3 is electrically connected to the first end 111 of the first end of the first light-emitting unit.

[0119] The fixed end of the fourth switching unit J4 is electrically connected to the fourth end 4 of the second end group of the driving unit 13; the first optional end of the fourth switching unit J4 is electrically connected to the third end 113 of the second end of the first light-emitting unit; the second optional end of the fourth switching unit J4 is electrically connected to the second end 112 of the first end of the first light-emitting unit.

[0120] See also Figure 7 The present application also provides a lighting circuit, which includes the aforementioned lighting control circuit 10 and the aforementioned light-emitting component 20. The lighting circuit is electrically connected to the light-emitting component 20, and the lighting control circuit 10 illuminates the light-emitting component 20. The electrical connection relationship between the lighting circuit and the light-emitting component 20 is consistent with the aforementioned embodiment, and this embodiment is only briefly described.

[0121] The light emitting control circuit 10 includes a detection component 12 , a control unit 11 , a driving unit 13 and a switching component 14 .

[0122] The detection component 12 is used to detect the light intensity at at least two ends of the light emitting component 20;

[0123] The control unit 11 is in communication with the detection component 12 and is configured to determine a first state or a second state based on the light intensity at at least two ends, wherein the first state is when the difference in the light intensity at the two ends is less than a designed difference threshold, and the second state is when the difference in the light intensity at the two ends is greater than or equal to the designed difference threshold;

[0124] The driving unit 13 and the switching component 14 are electrically connected to the control unit 11; in the first state, the connection between the driving unit 13 and the light-emitting component 20 through the switching component 14 is maintained; when the first state is switched to the second state, the connection between the driving unit 13 and the light-emitting component 20 through the switching component 14 is switched.

[0125] The light emitting assembly 20 includes a light emitting unit, or a first light emitting unit and a second light emitting unit connected in series in an optional manner.

[0126] The light emitting assembly 20 includes a first light emitting end portion and a second light emitting end portion. Optionally, the first light emitting end portion and the second light emitting end portion are arranged opposite to each other.

[0127] Optionally, the detection component 12 includes a first detection module 121 and a second detection module 122 , wherein the first detection module 121 is used to detect the light intensity of the first light-emitting end, and the second detection module 122 is used to detect the light intensity of the second light-emitting end.

[0128] The control unit 11 can determine the first state or the second state based on the light intensity at at least two ends. Optionally, if the light intensity at any end is less than a designed intensity threshold, the control unit 11 determines that the light emitting assembly 20 is in the third state.

[0129] In the first state, the driving unit 13 is maintained in a connection mode with the light emitting component 20 via the switching component 14 .

[0130] When the first state is switched to the second state, the driving unit 13 switches the connection mode between the switching component 14 and the light emitting component 20 .

[0131] In the third state, the control unit 11 may issue a prompt message for prompting replacement of the light emitting assembly 20 or the light emitting unit.

[0132] The driving unit 13 includes a first terminal group and a second terminal group for electrical connection. The first terminal group includes a first terminal 1 and a second terminal 2 for electrical connection, and the second terminal group includes a third terminal 3 and a fourth terminal 4 for electrical connection. The first terminal 1, second terminal 2, third terminal 3, and fourth terminal 4 of the driving unit 13 are collectively used to drive the light-emitting assembly 20 to emit light.

[0133] The first end group of the driving unit 13 is used to electrically connect to the first end and the second end of the first light-emitting unit in an optional manner through the switching component 14; the second end group of the driving unit 13 is used to electrically connect to the first end and the second end of the second light-emitting unit in an optional manner through the switching component 14.

[0134] Optionally, in the embodiment of the present application, in the first state before switching to the second state, the driving unit 13 is maintained in a connection manner with the light-emitting assembly 20 via the switching assembly 14. In this case, the first end of the first light-emitting unit serves as the first end 21 of the light-emitting assembly 20, and the first end of the second light-emitting unit serves as the second end 22 of the light-emitting assembly 20. That is, in the first state, the control unit 11 controls the switching assembly 14 to electrically connect the first end group of the driving unit 13 to the first end of the first light-emitting unit, the second end group of the driving unit 13 to the second end of the second light-emitting unit, and the second end of the first light-emitting unit to the second end of the second light-emitting unit.

[0135] When the first state is subsequently switched to the second state, the second end of the first light-emitting unit serves as the second end 22 of the light-emitting assembly 20, and the second end of the second light-emitting unit serves as the first end 21 of the light-emitting assembly 20. That is, in the second state, the control unit 11 controls the switching component 14 to electrically connect the first end group of the driving unit 13 to the second end of the first light-emitting unit, the second end group of the driving unit 13 to the second end of the second light-emitting unit, and the first end of the first light-emitting unit to the first end of the second light-emitting unit.

[0136] Optionally, in an embodiment of the present application, the switching assembly 14 includes eight switching units, namely a first switching unit J1, a second switching unit J2, a third switching unit J3, a fourth switching unit J4, a fifth switching unit J5, a sixth switching unit J6, a seventh switching unit J7, and an eighth switching unit J8. One or more switching units may be integrated together, such that each switching unit may be a separate relay, or multiple switching units may be integrated together to form a single relay. Each switching unit includes a fixed end, a first optional end, and a second optional end. In one state, the fixed end is electrically connected to the first optional end, and in another state, the fixed end is electrically connected to the second optional end. Optionally, the first optional end of the switching unit is a normally closed end, and the second optional end of the switching unit is a normally open end. Optionally, in one embodiment of the present application, in the first state before switching to the second state, the connection between the drive unit 13 and the light-emitting assembly 20 via the switching assembly 14 is maintained. In this case, the fixed end of each switching unit is electrically connected to the first optional end of the switching unit. When switching from the first state to the second state, the fixed end of each switching unit is electrically connected to the second optional end of the switching unit. It can be understood that in this embodiment, if the light emitting unit 20 is in the first state, the control unit 11 controls the switching component 14 to not operate.

[0137] Optionally, in the first state before switching to the second state, the connection between the driving unit 13 and the light-emitting component 20 is maintained through the switching component 14. At this time, the first end 1 and the second end 2 of the first end group of the driving unit 13 are electrically connected to the fixed end of the first switching unit J1 and the fixed end of the second switching unit J2; the first optional end of the first switching unit J1 and the first optional end of the second switching unit J2 are electrically connected to the second end 112 and the first end 111 of the first end of the first light-emitting unit; the third end 113 and the fourth end 114 of the second end of the first light-emitting unit are electrically connected to the fourth end 214 and the third end 213 of the second end of the second light-emitting unit in an optional manner; the first optional end of the third switching unit J3 and the first optional end of the fourth switching unit J4 are used to electrically connect to the first end 211 and the second end 212 of the first end of the second light-emitting unit; the fixed end of the third switching unit J3 and the fixed end of the fourth switching unit J4 are electrically connected to the third end 3 and the fourth end 4 of the second end group of the driving unit 13. Among them, the fourth end 114 and the third end 113 of the second end of the first light-emitting unit are electrically connected to the fixed end of the fifth switching unit J5 and the fixed end of the sixth switching unit J6; the first optional end of the fifth switching unit J5 and the first optional end of the sixth switching unit J6 are electrically connected to the third end 213 and the fourth end 214 of the second end of the second light-emitting unit.

[0138] Optionally, when the first state is switched to the second state, the first end 1 and the second end 2 of the first end group of the driving unit 13 are electrically connected to the fixed end of the first switching unit J1 and the fixed end of the second switching unit J2; the second optional end of the first switching unit J1 and the second optional end of the second switching unit J2 are electrically connected to the third end 113 and the fourth end 114 of the second end of the first light-emitting unit; the first end 111 and the second end 112 of the first end of the first light-emitting unit are electrically connected to the second end 212 and the first end 211 of the first end of the second light-emitting unit in an optional manner; the second optional end of the third switching unit J3 and the second optional end of the fourth switching unit J4 are used to electrically connect to the third end 213 and the fourth end 214 of the second end of the second light-emitting unit; the fixed end of the third switching unit J3 and the fixed end of the fourth switching unit J4 are electrically connected to the third end 3 and the fourth end 4 of the second end group of the driving unit 13. Among them, the first end 111 and the second end 112 of the first end of the first light-emitting unit are electrically connected to the fixed end of the seventh switching unit J7 and the fixed end of the eighth switching unit J8; the second optional end of the seventh switching unit J7 and the second optional end of the eighth switching unit J8 are electrically connected to the second end 212 and the first end 211 of the first end of the second light-emitting unit.

[0139] Optionally, the light emitting control circuit 10 further includes a communication unit, which is electrically connected to the control unit 11 and is also used for communication connection with an external terminal.

[0140] The control unit 11 is also used to determine a third state based on the light intensity of at least two ends; in the third state, a first reminder signal is sent to the communication unit so that the communication unit sends a reminder message to the terminal to remind the user to replace the light-emitting component 20.

[0141] The communication unit may be a wireless module to achieve communication connection with the terminal.

[0142] Optionally, the light emitting control circuit 10 further includes:

[0143] The indicator unit is electrically connected to the control unit 11. The control unit 11 is further configured to determine a third state based on the light intensity at at least two ends; in the third state, send a second reminder signal to the indicator unit, causing the indicator unit to emit an audible and / or optical indication to remind the user to replace the light-emitting assembly 20.

[0144] The indicating unit may include a speaker or a three-color light or other devices for prompting. It is understood that there may be only one of the communication unit and the indicating unit, or both of them may exist at the same time.

[0145] Alternatively, in one embodiment, the light emitting assembly 20 includes only one light emitting unit, such as only the first light emitting unit. The first end of the first light emitting unit serves as the first end 21 of the light emitting assembly 20 , and the second end of the first light emitting unit serves as the second end 22 of the light emitting assembly 20 .

[0146] In one embodiment, in the first state before switching to the second state, the driving unit 13 is maintained in a connection manner with the light-emitting component 20 via the switching component 14. At this time, the first end group of the driving unit 13 is electrically connected to the first end of the first light-emitting unit via the switching component 14, and the second end group of the driving unit 13 is electrically connected to the second end of the first light-emitting unit via the switching component 14. When the first state is switched to the second state, the first end group of the driving unit 13 is electrically connected to the second end of the first light-emitting unit via the switching component 14, and the second end group of the driving unit 13 is electrically connected to the first end of the first light-emitting unit via the switching component 14. The subsequent switching of the connection manner is not further described in detail in the embodiment of the present application. In the first state, the driving unit 13 is maintained in a connection manner with the light-emitting component 20 via the switching component 14. When the first state is switched to the second state, the driving unit 13 is switched in a connection manner with the light-emitting component 20 via the switching component 14.

[0147] See also Figure 8The present application also provides a light emitting control method, which is applied to control the light emitting control circuit of any of the above embodiments. The method includes:

[0148] S11: Detecting the light intensity at at least two ends of the light emitting component.

[0149] The light intensity at at least two ends of the light emitting component can be detected by the detection component.

[0150] S12: Determine a first state or a second state based on the light intensity of at least two ends, wherein the first state is when the difference in light intensity of the two ends is less than a designed difference threshold, and the second state is when the difference in light intensity of the two ends is greater than or equal to the designed difference threshold.

[0151] The control unit determines the first state or the second state according to the light intensity at at least two ends.

[0152] S13: In the first state, the driving unit is maintained in a connection mode with the light-emitting component through the switching component; and when the first state is switched to the second state, the driving unit is switched in a connection mode with the light-emitting component through the switching component.

[0153] In the first state, the connection mode between the driving unit and the light-emitting component is maintained through the switching component. At this time, the control unit controls the switching component so that the first end group of the driving unit is electrically connected to the first end of the light-emitting component through the switching component, and controls the switching component so that the second end group of the driving unit is electrically connected to the second end of the light-emitting component through the switching component.

[0154] When the first state is switched to the second state, the control unit controls the switching component so that the first end group of the driving unit is electrically connected to the second end of the light-emitting component through the switching component, and controls the switching component so that the second end group of the driving unit is electrically connected to the first end of the light-emitting component through the switching component.

[0155] Optionally, determining the first state or the second state according to the light intensity at at least two ends includes:

[0156] If the difference in light intensity at the two ends is less than the designed difference threshold, it is determined to be the first state; if the difference in light intensity at the two ends is greater than the designed difference threshold, it is determined to be the second state.

[0157] Optionally, the light emission control method further includes:

[0158] Determining a third state based on light intensities at at least two ends; in the third state, sending a first reminder signal to the communication unit to send a reminder message to the terminal for reminding the user to replace the light-emitting component;

[0159] Optionally, the light emission control method further includes:

[0160] A third state is determined based on the light intensity at at least two ends; in the third state, a second reminder signal is sent to the indication unit so that the indication unit emits sound indication information and / or light indication information for reminding the user to replace the light-emitting component.

[0161] Optionally, determining the third state according to light intensities at at least two ends includes:

[0162] If the light intensity at either end is less than a designed intensity threshold, a third state is determined.

[0163] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0164] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A light emitting control circuit, characterized in that: Used to control the light-emitting component to emit light, the light-emitting component includes a first light-emitting unit and a second light-emitting unit connected in series; the light-emitting control circuit includes: a detection assembly, wherein the light-emitting assembly includes a first light-emitting end portion and a second light-emitting end portion opposite to each other, and the detection assembly includes a first detection module and a second detection module, wherein the first detection module is used to detect the light intensity of the first light-emitting end portion, and the second detection module is used to detect the light intensity of the second light-emitting end portion; a control unit, communicatively connected to the detection component, configured to determine a first state or a second state based on the light intensity of the first light-emitting end portion and the light intensity of the second light-emitting end portion, wherein the first state is when the difference between the light intensity of the first light-emitting end portion and the light intensity of the second light-emitting end portion is less than a designed difference threshold, and the second state is when the difference between the light intensity of the first light-emitting end portion and the light intensity of the second light-emitting end portion is greater than or equal to a designed difference threshold; a driving unit and a switching component, wherein the switching component is electrically connected to the control unit; in the first state, the control unit controls the switching component to electrically connect the first end group of the driving unit to the first end of the first light-emitting unit, to electrically connect the second end group of the driving unit to the first end of the second light-emitting unit, and to electrically connect the second end of the first light-emitting unit to the second end of the second light-emitting unit; when the first state is switched to the second state, the control unit controls the switching component to electrically connect the first end group of the driving unit to the second end of the first light-emitting unit, to electrically connect the second end group of the driving unit to the second end of the second light-emitting unit, and to electrically connect the first end of the first light-emitting unit to the first end of the second light-emitting unit; In the first state switched to the second state, the first end of the first light-emitting unit is the first light-emitting end of the light-emitting component, and the first end of the second light-emitting unit is the second light-emitting end of the light-emitting component; when the first state is switched to the second state, the second end of the first light-emitting unit is the second light-emitting end of the light-emitting component, and the second end of the second light-emitting unit is the first light-emitting end of the light-emitting component.

2. The light emitting control circuit according to claim 1, characterized in that: The switching component includes a first switching unit, a second switching unit, a third switching unit and a fourth switching unit; The first end and the second end of the first end group of the driving unit are electrically connected to the fixed end of the first switching unit and the fixed end of the second switching unit respectively; the first optional end of the first switching unit and the first optional end of the second switching unit are electrically connected to the second end and the first end of the first end portion of the first light-emitting unit respectively; The third end and the fourth end of the second end of the first light-emitting unit are electrically connected to the fourth end and the third end of the second end of the second light-emitting unit respectively; The first optional end of the third switching unit and the first optional end of the fourth switching unit are used to electrically connect to the first end and the second end of the first end of the second light-emitting unit respectively; The fixed end of the third switching unit and the fixed end of the fourth switching unit are electrically connected to the third end and the fourth end of the second end group of the driving unit respectively.

3. The light emitting control circuit according to claim 2, characterized in that: The switching component further includes: a fifth switching unit and a sixth switching unit; The fourth end and the third end of the second end of the first light-emitting unit are electrically connected to the fixed end of the fifth switching unit and the fixed end of the sixth switching unit respectively; The first optional end of the fifth switching unit and the first optional end of the sixth switching unit are electrically connected to the third end and the fourth end of the second end portion of the second light-emitting unit respectively.

4. The light emitting control circuit according to claim 1, wherein: The switching component includes a first switching unit, a second switching unit, a third switching unit and a fourth switching unit; The first end and the second end of the first end group of the driving unit are electrically connected to the fixed end of the first switching unit and the fixed end of the second switching unit respectively; the second optional end of the first switching unit and the second optional end of the second switching unit are electrically connected to the third end and the fourth end of the second end of the first light-emitting unit respectively; The first end and the second end of the first end of the first light-emitting unit are electrically connected to the second end and the first end of the first end of the second light-emitting unit respectively; The second optional end of the third switching unit and the second optional end of the fourth switching unit are used to be electrically connected to the third end and the fourth end of the second end of the second light-emitting unit respectively; The fixed end of the third switching unit and the fixed end of the fourth switching unit are electrically connected to the third end and the fourth end of the second end group of the driving unit respectively.

5. The light emitting control circuit according to claim 4, characterized in that: The switching component further includes: a seventh switching unit and an eighth switching unit; The first end and the second end of the first end portion of the first light-emitting unit are electrically connected to the fixed end of the seventh switching unit and the fixed end of the eighth switching unit respectively; The second optional end of the seventh switching unit and the second optional end of the eighth switching unit are electrically connected to the second end and the first end of the first end portion of the second light-emitting unit respectively.

6. The light emitting control circuit according to claim 1, wherein: Also includes: a communication unit, the communication unit being electrically connected to the control unit and further configured to communicate with an external terminal; The control unit is further configured to determine a third state based on the light intensity of the first light-emitting end and the light intensity of the second light-emitting end; and in the third state, send a first reminder signal to the communication unit so that the communication unit sends a reminder message to the terminal to remind the user to replace the light-emitting component; And / or the light emitting control circuit further includes: an indicating unit, the indicating unit being electrically connected to the control unit; The control unit is also used to determine a third state based on the light intensity of the first light-emitting end and the light intensity of the second light-emitting end; in the third state, a second reminder signal is sent to the indication unit so that the indication unit emits sound indication information and / or light indication information to remind the user to replace the light-emitting component.

7. A light-emitting circuit, characterized in that: It comprises a light-emitting component and the light-emitting control circuit according to any one of claims 1 to 6.

8. A light emitting control method, characterized in that: The method is applied to control the light emitting control circuit according to any one of claims 1 to 6, and comprises: detecting light intensities at a first light-emitting end portion and a second light-emitting end portion opposite to each other of the light-emitting component; determining a first state or a second state based on the light intensity of the first light-emitting end portion and the light intensity of the second light-emitting end portion, wherein the first state is when the difference between the light intensity of the first light-emitting end portion and the light intensity of the second light-emitting end portion is less than a designed difference threshold, and the second state is when the difference between the light intensity of the first light-emitting end portion and the light intensity of the second light-emitting end portion is greater than or equal to the designed difference threshold; In the first state, the control unit controls the switching component to electrically connect the first end group of the driving unit to the first end of the first light-emitting unit, to electrically connect the second end group of the driving unit to the first end of the second light-emitting unit, and to electrically connect the second end of the first light-emitting unit to the second end of the second light-emitting unit; When the first state is switched to the second state, the control unit controls the switching component to electrically connect the first end group of the driving unit to the second end of the first light-emitting unit, electrically connect the second end group of the driving unit to the second end of the second light-emitting unit, and electrically connect the first end of the first light-emitting unit to the first end of the second light-emitting unit.

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